fhir-types 0.1.115

// @generated by fhir-codegen from hl7.fhir.r5.core 5.0.0. DO NOT EDIT.
// Change the emitter (tools/fhir-codegen) and regenerate.
// SPDX-FileCopyrightText: Cadasto B.V.
// SPDX-License-Identifier: Apache-2.0
//! Describes a required data item

/// Describes a required data item
///
/// Describes a required data item for evaluation in terms of the type of data,
/// and optional code or date-based filters of the data.
#[derive(Debug, Clone, Default, PartialEq, Eq)]
pub struct DataRequirement {
    /// Unique id for inter-element referencing
    ///
    /// Unique id for the element within a resource (for internal references). This
    /// may be any string value that does not contain spaces.
    pub id: Option<std::string::String>,
    /// Additional content defined by implementations
    ///
    /// May be used to represent additional information that is not part of the
    /// basic definition of the element. To make the use of extensions safe and
    /// managable, there is a strict set of governance applied to the definition and
    /// use of extensions. Though any implementer can define an extension, there is
    /// a set of requirements that SHALL be met as part of the definition of the
    /// extension.
    pub extension: Vec<super::extension::Extension>,
    /// The type of the required data
    ///
    /// The type of the required data, specified as the type name of a resource. For
    /// profiles, this value is set to the type of the base resource of the profile.
    pub r#type: super::primitives::Code,
    /// The profile of the required data
    ///
    /// The profile of the required data, specified as the uri of the profile
    /// definition.
    pub profile: Vec<super::primitives::Canonical>,
    /// E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device
    ///
    /// The intended subjects of the data requirement. If this element is not
    /// provided, a Patient subject is assumed.
    pub subject: Option<DataRequirementSubject>,
    /// Indicates specific structure elements that are referenced by the knowledge
    /// module
    ///
    /// Indicates that specific elements of the type are referenced by the knowledge
    /// module and must be supported by the consumer in order to obtain an effective
    /// evaluation. This does not mean that a value is required for this element,
    /// only that the consuming system must understand the element and be able to
    /// provide values for it if they are available. The value of mustSupport SHALL
    /// be a FHIRPath resolvable on the type of the DataRequirement. The path SHALL
    /// consist only of identifiers, constant indexers, and .resolve() (see the
    /// \[Simple FHIRPath Profile\](fhirpath.html\#simple) for full details).
    pub must_support: Vec<super::primitives::String>,
    /// What codes are expected
    ///
    /// Code filters specify additional constraints on the data, specifying the
    /// value set of interest for a particular element of the data. Each code filter
    /// defines an additional constraint on the data, i.e. code filters are AND'ed,
    /// not OR'ed.
    pub code_filter: Vec<DataRequirementCodeFilter>,
    /// What dates/date ranges are expected
    ///
    /// Date filters specify additional constraints on the data in terms of the
    /// applicable date range for specific elements. Each date filter specifies an
    /// additional constraint on the data, i.e. date filters are AND'ed, not OR'ed.
    pub date_filter: Vec<DataRequirementDateFilter>,
    /// What values are expected
    ///
    /// Value filters specify additional constraints on the data for elements other
    /// than code-valued or date-valued. Each value filter specifies an additional
    /// constraint on the data (i.e. valueFilters are AND'ed, not OR'ed).
    pub value_filter: Vec<DataRequirementValueFilter>,
    /// Number of results
    ///
    /// Specifies a maximum number of results that are required (uses the \_count
    /// search parameter).
    pub limit: Option<super::primitives::PositiveInt>,
    /// Order of the results
    ///
    /// Specifies the order of the results to be returned.
    pub sort: Vec<DataRequirementSort>,
}

impl super::super::codec::Json for DataRequirement {
    fn to_json(&self) -> Result<super::super::codec::Object, super::super::codec::EncodeError> {
        let mut object = super::super::codec::Object::new();
        if let Some(v) = &self.id {
            object.insert(
                std::string::String::from("id"),
                super::super::codec::Value::String(v.clone()),
            );
        }
        if !self.extension.is_empty() {
            let mut items = Vec::with_capacity(self.extension.len());
            for item in &self.extension {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("extension"),
                super::super::codec::Value::Array(items),
            );
        }
        if let Some(v) = super::super::codec::Primitive::value_json(&self.r#type)? {
            object.insert(std::string::String::from("type"), v);
        }
        if let Some(e) = super::super::codec::Primitive::element_json(&self.r#type)? {
            object.insert(std::string::String::from("_type"), e);
        }
        if !self.profile.is_empty() {
            let (values, elements) = super::super::codec::primitive_arrays(&self.profile)?;
            if let Some(values) = values {
                object.insert(std::string::String::from("profile"), values);
            }
            if let Some(elements) = elements {
                object.insert(std::string::String::from("_profile"), elements);
            }
        }
        if let Some(item) = &self.subject {
            let (suffix, value, element) = item.to_json_parts()?;
            if let Some(value) = value {
                object.insert(format!("subject{suffix}"), value);
            }
            if let Some(element) = element {
                object.insert(format!("_subject{suffix}"), element);
            }
        }
        if !self.must_support.is_empty() {
            let (values, elements) = super::super::codec::primitive_arrays(&self.must_support)?;
            if let Some(values) = values {
                object.insert(std::string::String::from("mustSupport"), values);
            }
            if let Some(elements) = elements {
                object.insert(std::string::String::from("_mustSupport"), elements);
            }
        }
        if !self.code_filter.is_empty() {
            let mut items = Vec::with_capacity(self.code_filter.len());
            for item in &self.code_filter {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("codeFilter"),
                super::super::codec::Value::Array(items),
            );
        }
        if !self.date_filter.is_empty() {
            let mut items = Vec::with_capacity(self.date_filter.len());
            for item in &self.date_filter {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("dateFilter"),
                super::super::codec::Value::Array(items),
            );
        }
        if !self.value_filter.is_empty() {
            let mut items = Vec::with_capacity(self.value_filter.len());
            for item in &self.value_filter {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("valueFilter"),
                super::super::codec::Value::Array(items),
            );
        }
        if let Some(item) = &self.limit {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("limit"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_limit"), e);
            }
        }
        if !self.sort.is_empty() {
            let mut items = Vec::with_capacity(self.sort.len());
            for item in &self.sort {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("sort"),
                super::super::codec::Value::Array(items),
            );
        }
        Ok(object)
    }

    fn from_json(
        object: &super::super::codec::Object,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        let mut raw_id: Option<&super::super::codec::Value> = None;
        let mut raw_extension: Option<&super::super::codec::Value> = None;
        let mut raw_type: Option<&super::super::codec::Value> = None;
        let mut raw_type_element: Option<&super::super::codec::Value> = None;
        let mut raw_profile: Option<&super::super::codec::Value> = None;
        let mut raw_profile_element: Option<&super::super::codec::Value> = None;
        let mut raw_subject = super::super::codec::ChoiceSlot::default();
        let mut raw_must_support: Option<&super::super::codec::Value> = None;
        let mut raw_must_support_element: Option<&super::super::codec::Value> = None;
        let mut raw_code_filter: Option<&super::super::codec::Value> = None;
        let mut raw_date_filter: Option<&super::super::codec::Value> = None;
        let mut raw_value_filter: Option<&super::super::codec::Value> = None;
        let mut raw_limit: Option<&super::super::codec::Value> = None;
        let mut raw_limit_element: Option<&super::super::codec::Value> = None;
        let mut raw_sort: Option<&super::super::codec::Value> = None;
        for (key, value) in object {
            match key.as_str() {
                "id" => {
                    raw_id = Some(value);
                }
                "extension" => {
                    raw_extension = Some(value);
                }
                "type" => {
                    raw_type = Some(value);
                }
                "_type" => {
                    raw_type_element = Some(value);
                }
                "profile" => {
                    raw_profile = Some(value);
                }
                "_profile" => {
                    raw_profile_element = Some(value);
                }
                "subjectCodeableConcept" => {
                    raw_subject.value("CodeableConcept", value, path)?;
                }
                "_subjectCodeableConcept" => {
                    raw_subject.element("CodeableConcept", value, path)?;
                }
                "subjectReference" => {
                    raw_subject.value("Reference", value, path)?;
                }
                "_subjectReference" => {
                    raw_subject.element("Reference", value, path)?;
                }
                "mustSupport" => {
                    raw_must_support = Some(value);
                }
                "_mustSupport" => {
                    raw_must_support_element = Some(value);
                }
                "codeFilter" => {
                    raw_code_filter = Some(value);
                }
                "dateFilter" => {
                    raw_date_filter = Some(value);
                }
                "valueFilter" => {
                    raw_value_filter = Some(value);
                }
                "limit" => {
                    raw_limit = Some(value);
                }
                "_limit" => {
                    raw_limit_element = Some(value);
                }
                "sort" => {
                    raw_sort = Some(value);
                }
                other => {
                    return path.with(other, |path| {
                        Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty))
                    });
                }
            }
        }
        let field_id = raw_id
            .map(|value| {
                path.with("id", |path| {
                    let value = super::super::codec::expect_single(value, path)?;
                    super::primitives::checked_id(
                        super::super::codec::expect_string(value, path)?,
                        path,
                    )
                })
            })
            .transpose()?;
        let mut field_extension = Vec::new();
        if let Some(raw) = raw_extension {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_extension.push(path.with_index("extension", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let field_type = path.with("type", |path| {
            super::super::codec::Primitive::from_json_parts(raw_type, raw_type_element, path)
        })?;
        let mut field_profile = Vec::new();
        for (index, (value, element)) in
            super::super::codec::pair_arrays(raw_profile, raw_profile_element, path)?
                .into_iter()
                .enumerate()
        {
            field_profile.push(path.with_index("profile", index, |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?);
        }
        let field_subject = match raw_subject.suffix {
            None => None,
            Some(suffix) => Some(path.with("subject", |path| {
                DataRequirementSubject::from_json_parts(
                    suffix,
                    raw_subject.value,
                    raw_subject.element,
                    path,
                )
            })?),
        };
        let mut field_must_support = Vec::new();
        for (index, (value, element)) in
            super::super::codec::pair_arrays(raw_must_support, raw_must_support_element, path)?
                .into_iter()
                .enumerate()
        {
            field_must_support.push(path.with_index("mustSupport", index, |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?);
        }
        let mut field_code_filter = Vec::new();
        if let Some(raw) = raw_code_filter {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_code_filter.push(path.with_index("codeFilter", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let mut field_date_filter = Vec::new();
        if let Some(raw) = raw_date_filter {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_date_filter.push(path.with_index("dateFilter", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let mut field_value_filter = Vec::new();
        if let Some(raw) = raw_value_filter {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_value_filter.push(path.with_index("valueFilter", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let field_limit = match (raw_limit, raw_limit_element) {
            (None, None) => None,
            (value, element) => Some(path.with("limit", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let mut field_sort = Vec::new();
        if let Some(raw) = raw_sort {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_sort.push(path.with_index("sort", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        Ok(Self {
            id: field_id,
            extension: field_extension,
            r#type: field_type,
            profile: field_profile,
            subject: field_subject,
            must_support: field_must_support,
            code_filter: field_code_filter,
            date_filter: field_date_filter,
            value_filter: field_value_filter,
            limit: field_limit,
            sort: field_sort,
        })
    }
}

impl serde::Serialize for DataRequirement {
    fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
        let mut map = serde::Serializer::serialize_map(serializer, None)?;
        if let Some(item) = &self.limit {
            super::super::codec::element_entry(&mut map, "_limit", item)?;
        }
        super::super::codec::element_list_entry(&mut map, "_mustSupport", &self.must_support)?;
        super::super::codec::element_list_entry(&mut map, "_profile", &self.profile)?;
        super::super::codec::element_entry(&mut map, "_type", &self.r#type)?;
        if !self.code_filter.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "codeFilter", &self.code_filter)?;
        }
        if !self.date_filter.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "dateFilter", &self.date_filter)?;
        }
        if !self.extension.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "extension", &self.extension)?;
        }
        if let Some(v) = &self.id {
            serde::ser::SerializeMap::serialize_entry(&mut map, "id", v)?;
        }
        if let Some(item) = &self.limit {
            super::super::codec::value_entry(&mut map, "limit", item)?;
        }
        super::super::codec::value_list_entry(&mut map, "mustSupport", &self.must_support)?;
        super::super::codec::value_list_entry(&mut map, "profile", &self.profile)?;
        if !self.sort.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "sort", &self.sort)?;
        }
        match &self.subject {
            Some(DataRequirementSubject::CodeableConcept(inner)) => {
                serde::ser::SerializeMap::serialize_entry(
                    &mut map,
                    "subjectCodeableConcept",
                    inner.as_ref(),
                )?;
            }
            Some(DataRequirementSubject::Reference(inner)) => {
                serde::ser::SerializeMap::serialize_entry(
                    &mut map,
                    "subjectReference",
                    inner.as_ref(),
                )?;
            }
            None => {}
        }
        super::super::codec::value_entry(&mut map, "type", &self.r#type)?;
        if !self.value_filter.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "valueFilter", &self.value_filter)?;
        }
        serde::ser::SerializeMap::end(map)
    }
}

impl<'de> serde::Deserialize<'de> for DataRequirement {
    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        let value = <super::super::codec::Value as serde::Deserialize>::deserialize(deserializer)?;
        let mut path = super::super::codec::Path::root("DataRequirement");
        let object =
            super::super::codec::expect_object(&value, &path).map_err(serde::de::Error::custom)?;
        super::super::codec::Json::from_json(object, &mut path).map_err(serde::de::Error::custom)
    }
}

/// What codes are expected
///
/// Code filters specify additional constraints on the data, specifying the
/// value set of interest for a particular element of the data. Each code filter
/// defines an additional constraint on the data, i.e. code filters are AND'ed,
/// not OR'ed.
#[derive(Debug, Clone, Default, PartialEq, Eq)]
pub struct DataRequirementCodeFilter {
    /// Unique id for inter-element referencing
    ///
    /// Unique id for the element within a resource (for internal references). This
    /// may be any string value that does not contain spaces.
    pub id: Option<std::string::String>,
    /// Additional content defined by implementations
    ///
    /// May be used to represent additional information that is not part of the
    /// basic definition of the element. To make the use of extensions safe and
    /// managable, there is a strict set of governance applied to the definition and
    /// use of extensions. Though any implementer can define an extension, there is
    /// a set of requirements that SHALL be met as part of the definition of the
    /// extension.
    pub extension: Vec<super::extension::Extension>,
    /// A code-valued attribute to filter on
    ///
    /// The code-valued attribute of the filter. The specified path SHALL be a
    /// FHIRPath resolvable on the specified type of the DataRequirement, and SHALL
    /// consist only of identifiers, constant indexers, and .resolve(). The path is
    /// allowed to contain qualifiers (.) to traverse sub-elements, as well as
    /// indexers (\[x\]) to traverse multiple-cardinality sub-elements (see the
    /// \[Simple FHIRPath Profile\](fhirpath.html\#simple) for full details). Note
    /// that the index must be an integer constant. The path must resolve to an
    /// element of type code, Coding, or CodeableConcept.
    pub path: Option<super::primitives::String>,
    /// A coded (token) parameter to search on
    ///
    /// A token parameter that refers to a search parameter defined on the specified
    /// type of the DataRequirement, and which searches on elements of type code,
    /// Coding, or CodeableConcept.
    pub search_param: Option<super::primitives::String>,
    /// ValueSet for the filter
    ///
    /// The valueset for the code filter. The valueSet and code elements are
    /// additive. If valueSet is specified, the filter will return only those data
    /// items for which the value of the code-valued element specified in the path
    /// is a member of the specified valueset.
    pub value_set: Option<super::primitives::Canonical>,
    /// What code is expected
    ///
    /// The codes for the code filter. If values are given, the filter will return
    /// only those data items for which the code-valued attribute specified by the
    /// path has a value that is one of the specified codes. If codes are specified
    /// in addition to a value set, the filter returns items matching a code in the
    /// value set or one of the specified codes.
    pub code: Vec<super::coding::Coding>,
}

impl super::super::codec::Json for DataRequirementCodeFilter {
    fn to_json(&self) -> Result<super::super::codec::Object, super::super::codec::EncodeError> {
        let mut object = super::super::codec::Object::new();
        if let Some(v) = &self.id {
            object.insert(
                std::string::String::from("id"),
                super::super::codec::Value::String(v.clone()),
            );
        }
        if !self.extension.is_empty() {
            let mut items = Vec::with_capacity(self.extension.len());
            for item in &self.extension {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("extension"),
                super::super::codec::Value::Array(items),
            );
        }
        if let Some(item) = &self.path {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("path"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_path"), e);
            }
        }
        if let Some(item) = &self.search_param {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("searchParam"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_searchParam"), e);
            }
        }
        if let Some(item) = &self.value_set {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("valueSet"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_valueSet"), e);
            }
        }
        if !self.code.is_empty() {
            let mut items = Vec::with_capacity(self.code.len());
            for item in &self.code {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("code"),
                super::super::codec::Value::Array(items),
            );
        }
        Ok(object)
    }

    fn from_json(
        object: &super::super::codec::Object,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        let mut raw_id: Option<&super::super::codec::Value> = None;
        let mut raw_extension: Option<&super::super::codec::Value> = None;
        let mut raw_path: Option<&super::super::codec::Value> = None;
        let mut raw_path_element: Option<&super::super::codec::Value> = None;
        let mut raw_search_param: Option<&super::super::codec::Value> = None;
        let mut raw_search_param_element: Option<&super::super::codec::Value> = None;
        let mut raw_value_set: Option<&super::super::codec::Value> = None;
        let mut raw_value_set_element: Option<&super::super::codec::Value> = None;
        let mut raw_code: Option<&super::super::codec::Value> = None;
        for (key, value) in object {
            match key.as_str() {
                "id" => {
                    raw_id = Some(value);
                }
                "extension" => {
                    raw_extension = Some(value);
                }
                "path" => {
                    raw_path = Some(value);
                }
                "_path" => {
                    raw_path_element = Some(value);
                }
                "searchParam" => {
                    raw_search_param = Some(value);
                }
                "_searchParam" => {
                    raw_search_param_element = Some(value);
                }
                "valueSet" => {
                    raw_value_set = Some(value);
                }
                "_valueSet" => {
                    raw_value_set_element = Some(value);
                }
                "code" => {
                    raw_code = Some(value);
                }
                other => {
                    return path.with(other, |path| {
                        Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty))
                    });
                }
            }
        }
        let field_id = raw_id
            .map(|value| {
                path.with("id", |path| {
                    let value = super::super::codec::expect_single(value, path)?;
                    super::primitives::checked_string(
                        super::super::codec::expect_string(value, path)?,
                        path,
                    )
                })
            })
            .transpose()?;
        let mut field_extension = Vec::new();
        if let Some(raw) = raw_extension {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_extension.push(path.with_index("extension", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let field_path = match (raw_path, raw_path_element) {
            (None, None) => None,
            (value, element) => Some(path.with("path", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let field_search_param = match (raw_search_param, raw_search_param_element) {
            (None, None) => None,
            (value, element) => Some(path.with("searchParam", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let field_value_set = match (raw_value_set, raw_value_set_element) {
            (None, None) => None,
            (value, element) => Some(path.with("valueSet", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let mut field_code = Vec::new();
        if let Some(raw) = raw_code {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_code.push(path.with_index("code", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        Ok(Self {
            id: field_id,
            extension: field_extension,
            path: field_path,
            search_param: field_search_param,
            value_set: field_value_set,
            code: field_code,
        })
    }
}

impl serde::Serialize for DataRequirementCodeFilter {
    fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
        let mut map = serde::Serializer::serialize_map(serializer, None)?;
        if let Some(item) = &self.path {
            super::super::codec::element_entry(&mut map, "_path", item)?;
        }
        if let Some(item) = &self.search_param {
            super::super::codec::element_entry(&mut map, "_searchParam", item)?;
        }
        if let Some(item) = &self.value_set {
            super::super::codec::element_entry(&mut map, "_valueSet", item)?;
        }
        if !self.code.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "code", &self.code)?;
        }
        if !self.extension.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "extension", &self.extension)?;
        }
        if let Some(v) = &self.id {
            serde::ser::SerializeMap::serialize_entry(&mut map, "id", v)?;
        }
        if let Some(item) = &self.path {
            super::super::codec::value_entry(&mut map, "path", item)?;
        }
        if let Some(item) = &self.search_param {
            super::super::codec::value_entry(&mut map, "searchParam", item)?;
        }
        if let Some(item) = &self.value_set {
            super::super::codec::value_entry(&mut map, "valueSet", item)?;
        }
        serde::ser::SerializeMap::end(map)
    }
}

impl<'de> serde::Deserialize<'de> for DataRequirementCodeFilter {
    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        let value = <super::super::codec::Value as serde::Deserialize>::deserialize(deserializer)?;
        let mut path = super::super::codec::Path::root("DataRequirementCodeFilter");
        let object =
            super::super::codec::expect_object(&value, &path).map_err(serde::de::Error::custom)?;
        super::super::codec::Json::from_json(object, &mut path).map_err(serde::de::Error::custom)
    }
}

/// What dates/date ranges are expected
///
/// Date filters specify additional constraints on the data in terms of the
/// applicable date range for specific elements. Each date filter specifies an
/// additional constraint on the data, i.e. date filters are AND'ed, not OR'ed.
#[derive(Debug, Clone, Default, PartialEq, Eq)]
pub struct DataRequirementDateFilter {
    /// Unique id for inter-element referencing
    ///
    /// Unique id for the element within a resource (for internal references). This
    /// may be any string value that does not contain spaces.
    pub id: Option<std::string::String>,
    /// Additional content defined by implementations
    ///
    /// May be used to represent additional information that is not part of the
    /// basic definition of the element. To make the use of extensions safe and
    /// managable, there is a strict set of governance applied to the definition and
    /// use of extensions. Though any implementer can define an extension, there is
    /// a set of requirements that SHALL be met as part of the definition of the
    /// extension.
    pub extension: Vec<super::extension::Extension>,
    /// A date-valued attribute to filter on
    ///
    /// The date-valued attribute of the filter. The specified path SHALL be a
    /// FHIRPath resolvable on the specified type of the DataRequirement, and SHALL
    /// consist only of identifiers, constant indexers, and .resolve(). The path is
    /// allowed to contain qualifiers (.) to traverse sub-elements, as well as
    /// indexers (\[x\]) to traverse multiple-cardinality sub-elements (see the
    /// \[Simple FHIRPath Profile\](fhirpath.html\#simple) for full details). Note
    /// that the index must be an integer constant. The path must resolve to an
    /// element of type date, dateTime, Period, Schedule, or Timing.
    pub path: Option<super::primitives::String>,
    /// A date valued parameter to search on
    ///
    /// A date parameter that refers to a search parameter defined on the specified
    /// type of the DataRequirement, and which searches on elements of type date,
    /// dateTime, Period, Schedule, or Timing.
    pub search_param: Option<super::primitives::String>,
    /// The value of the filter, as a Period, DateTime, or Duration value
    ///
    /// The value of the filter. If period is specified, the filter will return only
    /// those data items that fall within the bounds determined by the Period,
    /// inclusive of the period boundaries. If dateTime is specified, the filter
    /// will return only those data items that are equal to the specified dateTime.
    /// If a Duration is specified, the filter will return only those data items
    /// that fall within Duration before now.
    pub value: Option<DataRequirementDateFilterValue>,
}

impl super::super::codec::Json for DataRequirementDateFilter {
    fn to_json(&self) -> Result<super::super::codec::Object, super::super::codec::EncodeError> {
        let mut object = super::super::codec::Object::new();
        if let Some(v) = &self.id {
            object.insert(
                std::string::String::from("id"),
                super::super::codec::Value::String(v.clone()),
            );
        }
        if !self.extension.is_empty() {
            let mut items = Vec::with_capacity(self.extension.len());
            for item in &self.extension {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("extension"),
                super::super::codec::Value::Array(items),
            );
        }
        if let Some(item) = &self.path {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("path"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_path"), e);
            }
        }
        if let Some(item) = &self.search_param {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("searchParam"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_searchParam"), e);
            }
        }
        if let Some(item) = &self.value {
            let (suffix, value, element) = item.to_json_parts()?;
            if let Some(value) = value {
                object.insert(format!("value{suffix}"), value);
            }
            if let Some(element) = element {
                object.insert(format!("_value{suffix}"), element);
            }
        }
        Ok(object)
    }

    fn from_json(
        object: &super::super::codec::Object,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        let mut raw_id: Option<&super::super::codec::Value> = None;
        let mut raw_extension: Option<&super::super::codec::Value> = None;
        let mut raw_path: Option<&super::super::codec::Value> = None;
        let mut raw_path_element: Option<&super::super::codec::Value> = None;
        let mut raw_search_param: Option<&super::super::codec::Value> = None;
        let mut raw_search_param_element: Option<&super::super::codec::Value> = None;
        let mut raw_value = super::super::codec::ChoiceSlot::default();
        for (key, value) in object {
            match key.as_str() {
                "id" => {
                    raw_id = Some(value);
                }
                "extension" => {
                    raw_extension = Some(value);
                }
                "path" => {
                    raw_path = Some(value);
                }
                "_path" => {
                    raw_path_element = Some(value);
                }
                "searchParam" => {
                    raw_search_param = Some(value);
                }
                "_searchParam" => {
                    raw_search_param_element = Some(value);
                }
                "valueDateTime" => {
                    raw_value.value("DateTime", value, path)?;
                }
                "_valueDateTime" => {
                    raw_value.element("DateTime", value, path)?;
                }
                "valuePeriod" => {
                    raw_value.value("Period", value, path)?;
                }
                "_valuePeriod" => {
                    raw_value.element("Period", value, path)?;
                }
                "valueDuration" => {
                    raw_value.value("Duration", value, path)?;
                }
                "_valueDuration" => {
                    raw_value.element("Duration", value, path)?;
                }
                other => {
                    return path.with(other, |path| {
                        Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty))
                    });
                }
            }
        }
        let field_id = raw_id
            .map(|value| {
                path.with("id", |path| {
                    let value = super::super::codec::expect_single(value, path)?;
                    super::primitives::checked_string(
                        super::super::codec::expect_string(value, path)?,
                        path,
                    )
                })
            })
            .transpose()?;
        let mut field_extension = Vec::new();
        if let Some(raw) = raw_extension {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_extension.push(path.with_index("extension", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let field_path = match (raw_path, raw_path_element) {
            (None, None) => None,
            (value, element) => Some(path.with("path", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let field_search_param = match (raw_search_param, raw_search_param_element) {
            (None, None) => None,
            (value, element) => Some(path.with("searchParam", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let field_value = match raw_value.suffix {
            None => None,
            Some(suffix) => Some(path.with("value", |path| {
                DataRequirementDateFilterValue::from_json_parts(
                    suffix,
                    raw_value.value,
                    raw_value.element,
                    path,
                )
            })?),
        };
        Ok(Self {
            id: field_id,
            extension: field_extension,
            path: field_path,
            search_param: field_search_param,
            value: field_value,
        })
    }
}

impl serde::Serialize for DataRequirementDateFilter {
    fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
        let mut map = serde::Serializer::serialize_map(serializer, None)?;
        if let Some(item) = &self.path {
            super::super::codec::element_entry(&mut map, "_path", item)?;
        }
        if let Some(item) = &self.search_param {
            super::super::codec::element_entry(&mut map, "_searchParam", item)?;
        }
        if let Some(DataRequirementDateFilterValue::DateTime(inner)) = &self.value {
            super::super::codec::element_entry(&mut map, "_valueDateTime", inner)?;
        }
        if !self.extension.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "extension", &self.extension)?;
        }
        if let Some(v) = &self.id {
            serde::ser::SerializeMap::serialize_entry(&mut map, "id", v)?;
        }
        if let Some(item) = &self.path {
            super::super::codec::value_entry(&mut map, "path", item)?;
        }
        if let Some(item) = &self.search_param {
            super::super::codec::value_entry(&mut map, "searchParam", item)?;
        }
        match &self.value {
            Some(DataRequirementDateFilterValue::DateTime(inner)) => {
                super::super::codec::value_entry(&mut map, "valueDateTime", inner)?;
            }
            Some(DataRequirementDateFilterValue::Duration(inner)) => {
                serde::ser::SerializeMap::serialize_entry(
                    &mut map,
                    "valueDuration",
                    inner.as_ref(),
                )?;
            }
            Some(DataRequirementDateFilterValue::Period(inner)) => {
                serde::ser::SerializeMap::serialize_entry(&mut map, "valuePeriod", inner.as_ref())?;
            }
            None => {}
        }
        serde::ser::SerializeMap::end(map)
    }
}

impl<'de> serde::Deserialize<'de> for DataRequirementDateFilter {
    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        let value = <super::super::codec::Value as serde::Deserialize>::deserialize(deserializer)?;
        let mut path = super::super::codec::Path::root("DataRequirementDateFilter");
        let object =
            super::super::codec::expect_object(&value, &path).map_err(serde::de::Error::custom)?;
        super::super::codec::Json::from_json(object, &mut path).map_err(serde::de::Error::custom)
    }
}

/// The \`value\[x\]\` choice of \`DataRequirementDateFilter\`.
///
/// The value of the filter. If period is specified, the filter will return only
/// those data items that fall within the bounds determined by the Period,
/// inclusive of the period boundaries. If dateTime is specified, the filter
/// will return only those data items that are equal to the specified dateTime.
/// If a Duration is specified, the filter will return only those data items
/// that fall within Duration before now.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum DataRequirementDateFilterValue {
    /// The `dateTime` form.
    DateTime(super::primitives::DateTime),
    /// The `Period` form.
    Period(Box<super::period::Period>),
    /// The `Duration` form.
    Duration(Box<super::duration::Duration>),
}

impl DataRequirementDateFilterValue {
    /// The key suffix, the value part, and the `_name` part of this form.
    ///
    /// # Errors
    ///
    /// Returns [`super::super::codec::EncodeError`] when a held value has no JSON form.
    pub fn to_json_parts(
        &self,
    ) -> Result<
        (
            &'static str,
            Option<super::super::codec::Value>,
            Option<super::super::codec::Value>,
        ),
        super::super::codec::EncodeError,
    > {
        match self {
            Self::DateTime(inner) => Ok((
                "DateTime",
                super::super::codec::Primitive::value_json(inner)?,
                super::super::codec::Primitive::element_json(inner)?,
            )),
            Self::Period(inner) => Ok((
                "Period",
                Some(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(inner.as_ref())?,
                )),
                None,
            )),
            Self::Duration(inner) => Ok((
                "Duration",
                Some(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(inner.as_ref())?,
                )),
                None,
            )),
        }
    }

    /// Decodes the form named by `suffix` from its value and `_name` parts.
    ///
    /// # Errors
    ///
    /// Returns [`super::super::codec::DecodeError`] for an unknown suffix or a malformed part.
    pub fn from_json_parts(
        suffix: &str,
        value: Option<&super::super::codec::Value>,
        element: Option<&super::super::codec::Value>,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        match suffix {
            "DateTime" => Ok(Self::DateTime(
                super::super::codec::Primitive::from_json_parts(value, element, path)?,
            )),
            "Period" => {
                if element.is_some() {
                    return Err(path.error(super::super::codec::DecodeErrorKind::WrongType {
                        expected: "no underscore form for a complex type",
                    }));
                }
                let value = value.ok_or_else(|| {
                    path.error(super::super::codec::DecodeErrorKind::MissingProperty)
                })?;
                let inner = super::super::codec::Json::from_json(
                    super::super::codec::expect_object(
                        super::super::codec::expect_single(value, path)?,
                        path,
                    )?,
                    path,
                )?;
                Ok(Self::Period(Box::new(inner)))
            }
            "Duration" => {
                if element.is_some() {
                    return Err(path.error(super::super::codec::DecodeErrorKind::WrongType {
                        expected: "no underscore form for a complex type",
                    }));
                }
                let value = value.ok_or_else(|| {
                    path.error(super::super::codec::DecodeErrorKind::MissingProperty)
                })?;
                let inner = super::super::codec::Json::from_json(
                    super::super::codec::expect_object(
                        super::super::codec::expect_single(value, path)?,
                        path,
                    )?,
                    path,
                )?;
                Ok(Self::Duration(Box::new(inner)))
            }
            _ => Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty)),
        }
    }
}

/// Order of the results
///
/// Specifies the order of the results to be returned.
#[derive(Debug, Clone, Default, PartialEq, Eq)]
pub struct DataRequirementSort {
    /// Unique id for inter-element referencing
    ///
    /// Unique id for the element within a resource (for internal references). This
    /// may be any string value that does not contain spaces.
    pub id: Option<std::string::String>,
    /// Additional content defined by implementations
    ///
    /// May be used to represent additional information that is not part of the
    /// basic definition of the element. To make the use of extensions safe and
    /// managable, there is a strict set of governance applied to the definition and
    /// use of extensions. Though any implementer can define an extension, there is
    /// a set of requirements that SHALL be met as part of the definition of the
    /// extension.
    pub extension: Vec<super::extension::Extension>,
    /// The name of the attribute to perform the sort
    ///
    /// The attribute of the sort. The specified path must be resolvable from the
    /// type of the required data. The path is allowed to contain qualifiers (.) to
    /// traverse sub-elements, as well as indexers (\[x\]) to traverse
    /// multiple-cardinality sub-elements. Note that the index must be an integer
    /// constant.
    pub path: super::primitives::String,
    /// ascending | descending
    ///
    /// The direction of the sort, ascending or descending.
    pub direction: super::primitives::Code,
}

impl super::super::codec::Json for DataRequirementSort {
    fn to_json(&self) -> Result<super::super::codec::Object, super::super::codec::EncodeError> {
        let mut object = super::super::codec::Object::new();
        if let Some(v) = &self.id {
            object.insert(
                std::string::String::from("id"),
                super::super::codec::Value::String(v.clone()),
            );
        }
        if !self.extension.is_empty() {
            let mut items = Vec::with_capacity(self.extension.len());
            for item in &self.extension {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("extension"),
                super::super::codec::Value::Array(items),
            );
        }
        if let Some(v) = super::super::codec::Primitive::value_json(&self.path)? {
            object.insert(std::string::String::from("path"), v);
        }
        if let Some(e) = super::super::codec::Primitive::element_json(&self.path)? {
            object.insert(std::string::String::from("_path"), e);
        }
        if let Some(v) = super::super::codec::Primitive::value_json(&self.direction)? {
            object.insert(std::string::String::from("direction"), v);
        }
        if let Some(e) = super::super::codec::Primitive::element_json(&self.direction)? {
            object.insert(std::string::String::from("_direction"), e);
        }
        Ok(object)
    }

    fn from_json(
        object: &super::super::codec::Object,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        let mut raw_id: Option<&super::super::codec::Value> = None;
        let mut raw_extension: Option<&super::super::codec::Value> = None;
        let mut raw_path: Option<&super::super::codec::Value> = None;
        let mut raw_path_element: Option<&super::super::codec::Value> = None;
        let mut raw_direction: Option<&super::super::codec::Value> = None;
        let mut raw_direction_element: Option<&super::super::codec::Value> = None;
        for (key, value) in object {
            match key.as_str() {
                "id" => {
                    raw_id = Some(value);
                }
                "extension" => {
                    raw_extension = Some(value);
                }
                "path" => {
                    raw_path = Some(value);
                }
                "_path" => {
                    raw_path_element = Some(value);
                }
                "direction" => {
                    raw_direction = Some(value);
                }
                "_direction" => {
                    raw_direction_element = Some(value);
                }
                other => {
                    return path.with(other, |path| {
                        Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty))
                    });
                }
            }
        }
        let field_id = raw_id
            .map(|value| {
                path.with("id", |path| {
                    let value = super::super::codec::expect_single(value, path)?;
                    super::primitives::checked_string(
                        super::super::codec::expect_string(value, path)?,
                        path,
                    )
                })
            })
            .transpose()?;
        let mut field_extension = Vec::new();
        if let Some(raw) = raw_extension {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_extension.push(path.with_index("extension", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let field_path = path.with("path", |path| {
            super::super::codec::Primitive::from_json_parts(raw_path, raw_path_element, path)
        })?;
        let field_direction = path.with("direction", |path| {
            super::super::codec::Primitive::from_json_parts(
                raw_direction,
                raw_direction_element,
                path,
            )
        })?;
        Ok(Self {
            id: field_id,
            extension: field_extension,
            path: field_path,
            direction: field_direction,
        })
    }
}

impl serde::Serialize for DataRequirementSort {
    fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
        let mut map = serde::Serializer::serialize_map(serializer, None)?;
        super::super::codec::element_entry(&mut map, "_direction", &self.direction)?;
        super::super::codec::element_entry(&mut map, "_path", &self.path)?;
        super::super::codec::value_entry(&mut map, "direction", &self.direction)?;
        if !self.extension.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "extension", &self.extension)?;
        }
        if let Some(v) = &self.id {
            serde::ser::SerializeMap::serialize_entry(&mut map, "id", v)?;
        }
        super::super::codec::value_entry(&mut map, "path", &self.path)?;
        serde::ser::SerializeMap::end(map)
    }
}

impl<'de> serde::Deserialize<'de> for DataRequirementSort {
    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        let value = <super::super::codec::Value as serde::Deserialize>::deserialize(deserializer)?;
        let mut path = super::super::codec::Path::root("DataRequirementSort");
        let object =
            super::super::codec::expect_object(&value, &path).map_err(serde::de::Error::custom)?;
        super::super::codec::Json::from_json(object, &mut path).map_err(serde::de::Error::custom)
    }
}

/// The \`subject\[x\]\` choice of \`DataRequirement\`.
///
/// The intended subjects of the data requirement. If this element is not
/// provided, a Patient subject is assumed.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum DataRequirementSubject {
    /// The `CodeableConcept` form.
    CodeableConcept(Box<super::codeable_concept::CodeableConcept>),
    /// The `Reference` form.
    Reference(Box<super::reference::Reference>),
}

impl DataRequirementSubject {
    /// The key suffix, the value part, and the `_name` part of this form.
    ///
    /// # Errors
    ///
    /// Returns [`super::super::codec::EncodeError`] when a held value has no JSON form.
    pub fn to_json_parts(
        &self,
    ) -> Result<
        (
            &'static str,
            Option<super::super::codec::Value>,
            Option<super::super::codec::Value>,
        ),
        super::super::codec::EncodeError,
    > {
        match self {
            Self::CodeableConcept(inner) => Ok((
                "CodeableConcept",
                Some(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(inner.as_ref())?,
                )),
                None,
            )),
            Self::Reference(inner) => Ok((
                "Reference",
                Some(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(inner.as_ref())?,
                )),
                None,
            )),
        }
    }

    /// Decodes the form named by `suffix` from its value and `_name` parts.
    ///
    /// # Errors
    ///
    /// Returns [`super::super::codec::DecodeError`] for an unknown suffix or a malformed part.
    pub fn from_json_parts(
        suffix: &str,
        value: Option<&super::super::codec::Value>,
        element: Option<&super::super::codec::Value>,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        match suffix {
            "CodeableConcept" => {
                if element.is_some() {
                    return Err(path.error(super::super::codec::DecodeErrorKind::WrongType {
                        expected: "no underscore form for a complex type",
                    }));
                }
                let value = value.ok_or_else(|| {
                    path.error(super::super::codec::DecodeErrorKind::MissingProperty)
                })?;
                let inner = super::super::codec::Json::from_json(
                    super::super::codec::expect_object(
                        super::super::codec::expect_single(value, path)?,
                        path,
                    )?,
                    path,
                )?;
                Ok(Self::CodeableConcept(Box::new(inner)))
            }
            "Reference" => {
                if element.is_some() {
                    return Err(path.error(super::super::codec::DecodeErrorKind::WrongType {
                        expected: "no underscore form for a complex type",
                    }));
                }
                let value = value.ok_or_else(|| {
                    path.error(super::super::codec::DecodeErrorKind::MissingProperty)
                })?;
                let inner = super::super::codec::Json::from_json(
                    super::super::codec::expect_object(
                        super::super::codec::expect_single(value, path)?,
                        path,
                    )?,
                    path,
                )?;
                Ok(Self::Reference(Box::new(inner)))
            }
            _ => Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty)),
        }
    }
}

/// What values are expected
///
/// Value filters specify additional constraints on the data for elements other
/// than code-valued or date-valued. Each value filter specifies an additional
/// constraint on the data (i.e. valueFilters are AND'ed, not OR'ed).
#[derive(Debug, Clone, Default, PartialEq, Eq)]
pub struct DataRequirementValueFilter {
    /// Unique id for inter-element referencing
    ///
    /// Unique id for the element within a resource (for internal references). This
    /// may be any string value that does not contain spaces.
    pub id: Option<std::string::String>,
    /// Additional content defined by implementations
    ///
    /// May be used to represent additional information that is not part of the
    /// basic definition of the element. To make the use of extensions safe and
    /// managable, there is a strict set of governance applied to the definition and
    /// use of extensions. Though any implementer can define an extension, there is
    /// a set of requirements that SHALL be met as part of the definition of the
    /// extension.
    pub extension: Vec<super::extension::Extension>,
    /// An attribute to filter on
    ///
    /// The attribute of the filter. The specified path SHALL be a FHIRPath
    /// resolvable on the specified type of the DataRequirement, and SHALL consist
    /// only of identifiers, constant indexers, and .resolve(). The path is allowed
    /// to contain qualifiers (.) to traverse sub-elements, as well as indexers
    /// (\[x\]) to traverse multiple-cardinality sub-elements (see the \[Simple
    /// FHIRPath Profile\](fhirpath.html\#simple) for full details). Note that the
    /// index must be an integer constant. The path must resolve to an element of a
    /// type that is comparable to the valueFilter.value\[x\] element for the
    /// filter.
    pub path: Option<super::primitives::String>,
    /// A parameter to search on
    ///
    /// A search parameter defined on the specified type of the DataRequirement, and
    /// which searches on elements of a type compatible with the type of the
    /// valueFilter.value\[x\] for the filter.
    pub search_param: Option<super::primitives::String>,
    /// eq | gt | lt | ge | le | sa | eb
    ///
    /// The comparator to be used to determine whether the value is matching.
    pub comparator: Option<super::primitives::Code>,
    /// The value of the filter, as a Period, DateTime, or Duration value
    ///
    /// The value of the filter.
    pub value: Option<DataRequirementValueFilterValue>,
}

impl super::super::codec::Json for DataRequirementValueFilter {
    fn to_json(&self) -> Result<super::super::codec::Object, super::super::codec::EncodeError> {
        let mut object = super::super::codec::Object::new();
        if let Some(v) = &self.id {
            object.insert(
                std::string::String::from("id"),
                super::super::codec::Value::String(v.clone()),
            );
        }
        if !self.extension.is_empty() {
            let mut items = Vec::with_capacity(self.extension.len());
            for item in &self.extension {
                items.push(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(item)?,
                ));
            }
            object.insert(
                std::string::String::from("extension"),
                super::super::codec::Value::Array(items),
            );
        }
        if let Some(item) = &self.path {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("path"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_path"), e);
            }
        }
        if let Some(item) = &self.search_param {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("searchParam"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_searchParam"), e);
            }
        }
        if let Some(item) = &self.comparator {
            if let Some(v) = super::super::codec::Primitive::value_json(item)? {
                object.insert(std::string::String::from("comparator"), v);
            }
            if let Some(e) = super::super::codec::Primitive::element_json(item)? {
                object.insert(std::string::String::from("_comparator"), e);
            }
        }
        if let Some(item) = &self.value {
            let (suffix, value, element) = item.to_json_parts()?;
            if let Some(value) = value {
                object.insert(format!("value{suffix}"), value);
            }
            if let Some(element) = element {
                object.insert(format!("_value{suffix}"), element);
            }
        }
        Ok(object)
    }

    fn from_json(
        object: &super::super::codec::Object,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        let mut raw_id: Option<&super::super::codec::Value> = None;
        let mut raw_extension: Option<&super::super::codec::Value> = None;
        let mut raw_path: Option<&super::super::codec::Value> = None;
        let mut raw_path_element: Option<&super::super::codec::Value> = None;
        let mut raw_search_param: Option<&super::super::codec::Value> = None;
        let mut raw_search_param_element: Option<&super::super::codec::Value> = None;
        let mut raw_comparator: Option<&super::super::codec::Value> = None;
        let mut raw_comparator_element: Option<&super::super::codec::Value> = None;
        let mut raw_value = super::super::codec::ChoiceSlot::default();
        for (key, value) in object {
            match key.as_str() {
                "id" => {
                    raw_id = Some(value);
                }
                "extension" => {
                    raw_extension = Some(value);
                }
                "path" => {
                    raw_path = Some(value);
                }
                "_path" => {
                    raw_path_element = Some(value);
                }
                "searchParam" => {
                    raw_search_param = Some(value);
                }
                "_searchParam" => {
                    raw_search_param_element = Some(value);
                }
                "comparator" => {
                    raw_comparator = Some(value);
                }
                "_comparator" => {
                    raw_comparator_element = Some(value);
                }
                "valueDateTime" => {
                    raw_value.value("DateTime", value, path)?;
                }
                "_valueDateTime" => {
                    raw_value.element("DateTime", value, path)?;
                }
                "valuePeriod" => {
                    raw_value.value("Period", value, path)?;
                }
                "_valuePeriod" => {
                    raw_value.element("Period", value, path)?;
                }
                "valueDuration" => {
                    raw_value.value("Duration", value, path)?;
                }
                "_valueDuration" => {
                    raw_value.element("Duration", value, path)?;
                }
                other => {
                    return path.with(other, |path| {
                        Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty))
                    });
                }
            }
        }
        let field_id = raw_id
            .map(|value| {
                path.with("id", |path| {
                    let value = super::super::codec::expect_single(value, path)?;
                    super::primitives::checked_string(
                        super::super::codec::expect_string(value, path)?,
                        path,
                    )
                })
            })
            .transpose()?;
        let mut field_extension = Vec::new();
        if let Some(raw) = raw_extension {
            for (index, value) in super::super::codec::expect_array(raw, path)?
                .iter()
                .enumerate()
            {
                field_extension.push(path.with_index("extension", index, |path| {
                    super::super::codec::Json::from_json(
                        super::super::codec::expect_object(value, path)?,
                        path,
                    )
                })?);
            }
        }
        let field_path = match (raw_path, raw_path_element) {
            (None, None) => None,
            (value, element) => Some(path.with("path", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let field_search_param = match (raw_search_param, raw_search_param_element) {
            (None, None) => None,
            (value, element) => Some(path.with("searchParam", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let field_comparator = match (raw_comparator, raw_comparator_element) {
            (None, None) => None,
            (value, element) => Some(path.with("comparator", |path| {
                super::super::codec::Primitive::from_json_parts(value, element, path)
            })?),
        };
        let field_value = match raw_value.suffix {
            None => None,
            Some(suffix) => Some(path.with("value", |path| {
                DataRequirementValueFilterValue::from_json_parts(
                    suffix,
                    raw_value.value,
                    raw_value.element,
                    path,
                )
            })?),
        };
        Ok(Self {
            id: field_id,
            extension: field_extension,
            path: field_path,
            search_param: field_search_param,
            comparator: field_comparator,
            value: field_value,
        })
    }
}

impl serde::Serialize for DataRequirementValueFilter {
    fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
        let mut map = serde::Serializer::serialize_map(serializer, None)?;
        if let Some(item) = &self.comparator {
            super::super::codec::element_entry(&mut map, "_comparator", item)?;
        }
        if let Some(item) = &self.path {
            super::super::codec::element_entry(&mut map, "_path", item)?;
        }
        if let Some(item) = &self.search_param {
            super::super::codec::element_entry(&mut map, "_searchParam", item)?;
        }
        if let Some(DataRequirementValueFilterValue::DateTime(inner)) = &self.value {
            super::super::codec::element_entry(&mut map, "_valueDateTime", inner)?;
        }
        if let Some(item) = &self.comparator {
            super::super::codec::value_entry(&mut map, "comparator", item)?;
        }
        if !self.extension.is_empty() {
            serde::ser::SerializeMap::serialize_entry(&mut map, "extension", &self.extension)?;
        }
        if let Some(v) = &self.id {
            serde::ser::SerializeMap::serialize_entry(&mut map, "id", v)?;
        }
        if let Some(item) = &self.path {
            super::super::codec::value_entry(&mut map, "path", item)?;
        }
        if let Some(item) = &self.search_param {
            super::super::codec::value_entry(&mut map, "searchParam", item)?;
        }
        match &self.value {
            Some(DataRequirementValueFilterValue::DateTime(inner)) => {
                super::super::codec::value_entry(&mut map, "valueDateTime", inner)?;
            }
            Some(DataRequirementValueFilterValue::Duration(inner)) => {
                serde::ser::SerializeMap::serialize_entry(
                    &mut map,
                    "valueDuration",
                    inner.as_ref(),
                )?;
            }
            Some(DataRequirementValueFilterValue::Period(inner)) => {
                serde::ser::SerializeMap::serialize_entry(&mut map, "valuePeriod", inner.as_ref())?;
            }
            None => {}
        }
        serde::ser::SerializeMap::end(map)
    }
}

impl<'de> serde::Deserialize<'de> for DataRequirementValueFilter {
    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        let value = <super::super::codec::Value as serde::Deserialize>::deserialize(deserializer)?;
        let mut path = super::super::codec::Path::root("DataRequirementValueFilter");
        let object =
            super::super::codec::expect_object(&value, &path).map_err(serde::de::Error::custom)?;
        super::super::codec::Json::from_json(object, &mut path).map_err(serde::de::Error::custom)
    }
}

/// The \`value\[x\]\` choice of \`DataRequirementValueFilter\`.
///
/// The value of the filter.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum DataRequirementValueFilterValue {
    /// The `dateTime` form.
    DateTime(super::primitives::DateTime),
    /// The `Period` form.
    Period(Box<super::period::Period>),
    /// The `Duration` form.
    Duration(Box<super::duration::Duration>),
}

impl DataRequirementValueFilterValue {
    /// The key suffix, the value part, and the `_name` part of this form.
    ///
    /// # Errors
    ///
    /// Returns [`super::super::codec::EncodeError`] when a held value has no JSON form.
    pub fn to_json_parts(
        &self,
    ) -> Result<
        (
            &'static str,
            Option<super::super::codec::Value>,
            Option<super::super::codec::Value>,
        ),
        super::super::codec::EncodeError,
    > {
        match self {
            Self::DateTime(inner) => Ok((
                "DateTime",
                super::super::codec::Primitive::value_json(inner)?,
                super::super::codec::Primitive::element_json(inner)?,
            )),
            Self::Period(inner) => Ok((
                "Period",
                Some(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(inner.as_ref())?,
                )),
                None,
            )),
            Self::Duration(inner) => Ok((
                "Duration",
                Some(super::super::codec::Value::Object(
                    super::super::codec::Json::to_json(inner.as_ref())?,
                )),
                None,
            )),
        }
    }

    /// Decodes the form named by `suffix` from its value and `_name` parts.
    ///
    /// # Errors
    ///
    /// Returns [`super::super::codec::DecodeError`] for an unknown suffix or a malformed part.
    pub fn from_json_parts(
        suffix: &str,
        value: Option<&super::super::codec::Value>,
        element: Option<&super::super::codec::Value>,
        path: &mut super::super::codec::Path,
    ) -> Result<Self, super::super::codec::DecodeError> {
        match suffix {
            "DateTime" => Ok(Self::DateTime(
                super::super::codec::Primitive::from_json_parts(value, element, path)?,
            )),
            "Period" => {
                if element.is_some() {
                    return Err(path.error(super::super::codec::DecodeErrorKind::WrongType {
                        expected: "no underscore form for a complex type",
                    }));
                }
                let value = value.ok_or_else(|| {
                    path.error(super::super::codec::DecodeErrorKind::MissingProperty)
                })?;
                let inner = super::super::codec::Json::from_json(
                    super::super::codec::expect_object(
                        super::super::codec::expect_single(value, path)?,
                        path,
                    )?,
                    path,
                )?;
                Ok(Self::Period(Box::new(inner)))
            }
            "Duration" => {
                if element.is_some() {
                    return Err(path.error(super::super::codec::DecodeErrorKind::WrongType {
                        expected: "no underscore form for a complex type",
                    }));
                }
                let value = value.ok_or_else(|| {
                    path.error(super::super::codec::DecodeErrorKind::MissingProperty)
                })?;
                let inner = super::super::codec::Json::from_json(
                    super::super::codec::expect_object(
                        super::super::codec::expect_single(value, path)?,
                        path,
                    )?,
                    path,
                )?;
                Ok(Self::Duration(Box::new(inner)))
            }
            _ => Err(path.error(super::super::codec::DecodeErrorKind::UnknownProperty)),
        }
    }
}