fhir 0.1.0

//! MessageHeader
//!
//! URL: http://hl7.org/fhir/StructureDefinition/MessageHeader
//!
//! Version: 5.0.0
//!
//! MessageHeader Resource: The header for a message exchange that is either requesting or responding to an action.
//!
//! FHIR: <https://build.fhir.org/>
//!
//! UML: <https://build.fhir.org/uml.html>

// Allow unused crate::r5::types as types;
#![allow(unused_imports)]

use crate::r5::types;
use ::serde::{Deserialize, Serialize};
use fhir_derive_macros::Validate;

/// The header for a message exchange that is either requesting or responding
/// to an action. MessageHeader is the anchor of the FHIR messaging paradigm,
/// in which discrete events are exchanged between systems as self-contained
/// units of work. The reference(s) that are the subject of the action, along
/// with any other information related to the action, are transmitted inside a
/// Bundle of type "message" whose first entry is always the MessageHeader
/// resource instance. This resource identifies the triggering event, and
/// conveys the routing, source, destination, sender, author, responsible
/// party, reason, and response context needed to reliably process the message.
///
/// A MessageHeader supports both request messages, which ask a receiving
/// system to perform an action, and response messages, which report the
/// outcome of a prior request via the response element. It is commonly used in
/// clinical and administrative integration scenarios such as notifying an
/// application of an admission, discharge, or transfer event, or acknowledging
/// receipt of an earlier message.
///
/// Related resources: the payload referenced by the focus element is carried
/// alongside this header in the enclosing `Bundle`, and routing frequently
/// points at `Endpoint`, `Organization`, `Device`, or
/// [`Practitioner`](crate::r5::resources::practitioner::Practitioner)
/// resources. The reason for an event is expressed as a
/// [`CodeableConcept`](crate::r5::types::CodeableConcept).
///
/// # Examples
///
/// ```
/// use fhir::r5::resources::message_header::MessageHeader;
///
/// let value = MessageHeader::default();
/// let json = ::serde_json::to_value(&value).unwrap();
/// let back: MessageHeader = ::serde_json::from_value(json).unwrap();
/// assert_eq!(value, back);
/// ```
#[serde_with::skip_serializing_none]
#[derive(Debug, Default, Clone, Serialize, Deserialize, PartialEq, Eq, Validate)]
#[serde(rename_all = "camelCase")]
pub struct MessageHeader {
    /// Logical id of this artifact
    pub id: Option<types::String>,

    /// Metadata about the resource
    pub meta: Option<types::Meta>,

    /// A set of rules under which this content was created
    pub implicit_rules: Option<types::Uri>,

    /// Language of the resource content
    pub language: Option<types::Code>,

    /// Text summary of the resource, for human interpretation
    pub text: Option<types::Narrative>,

    /// Contained, inline Resources
    pub contained: Option<Vec<::serde_json::Value>>,

    /// Additional content defined by implementations
    pub extension: Option<Vec<types::Extension>>,

    /// Extensions that cannot be ignored
    pub modifier_extension: Option<Vec<types::Extension>>,

    /// The event that this message represents, given as a Coding drawn from the message events value set.
    pub event_coding: Option<types::Coding>,

    /// The event that this message represents, given as a canonical link to an EventDefinition.
    pub event_canonical: Option<types::Canonical>,

    /// Message destination application(s)
    pub destination: Option<Vec<MessageHeaderDestination>>,

    /// Real world sender of the message
    pub sender: Option<types::Reference>,

    /// The source of the decision
    pub author: Option<types::Reference>,

    /// Required description of the source application from which this message originated.
    pub source: MessageHeaderSource,

    /// Final responsibility for event
    pub responsible: Option<types::Reference>,

    /// Cause of event
    pub reason: Option<types::CodeableConcept>,

    /// If this is a reply to prior message
    pub response: Option<MessageHeaderResponse>,

    /// References to the actual subject data of the message, carried elsewhere in the enclosing Bundle.
    pub focus: Option<Vec<types::Reference>>,

    /// Link to the definition for this message
    pub definition: Option<types::Canonical>,
}

/// Message destination application(s).
///
/// The destination application(s) which the message is intended for, including
/// the actual address or Endpoint resource and the intended real-world
/// recipient for the data.
#[serde_with::skip_serializing_none]
#[derive(Debug, Default, Clone, Serialize, Deserialize, PartialEq, Eq, Validate)]
#[serde(rename_all = "camelCase")]
pub struct MessageHeaderDestination {
    /// Unique id for inter-element referencing
    pub id: Option<types::String>,

    /// Additional content defined by implementations
    pub extension: Option<Vec<types::Extension>>,

    /// Extensions that cannot be ignored even if unrecognized
    pub modifier_extension: Option<Vec<types::Extension>>,

    /// Actual destination address or Endpoint resource
    pub endpoint_url: Option<types::Url>,

    /// Actual destination address or Endpoint resource
    pub endpoint_reference: Option<types::Reference>,

    /// Name of system
    pub name: Option<types::String>,

    /// Particular delivery destination within the destination
    pub target: Option<types::Reference>,

    /// Intended "real-world" recipient for the data
    pub receiver: Option<types::Reference>,
}

/// Message source application.
///
/// The source application from which this message originated, including the
/// actual address or Endpoint resource, the name and version of the software,
/// and a human contact for problems.
#[serde_with::skip_serializing_none]
#[derive(Debug, Default, Clone, Serialize, Deserialize, PartialEq, Eq, Validate)]
#[serde(rename_all = "camelCase")]
pub struct MessageHeaderSource {
    /// Unique id for inter-element referencing
    pub id: Option<types::String>,

    /// Additional content defined by implementations
    pub extension: Option<Vec<types::Extension>>,

    /// Extensions that cannot be ignored even if unrecognized
    pub modifier_extension: Option<Vec<types::Extension>>,

    /// Actual source address or Endpoint resource
    pub endpoint_url: Option<types::Url>,

    /// Actual source address or Endpoint resource
    pub endpoint_reference: Option<types::Reference>,

    /// Name of system
    pub name: Option<types::String>,

    /// Name of software running the system
    pub software: Option<types::String>,

    /// Version of software running
    pub version: Option<types::String>,

    /// Human contact for problems
    pub contact: Option<types::ContactPoint>,
}

/// If this is a reply to prior message.
///
/// Information about the message that this message is a response to, present
/// only if this message is a response. Carries the identifier of the original
/// message, a status code, and an optional reference to details.
#[serde_with::skip_serializing_none]
#[derive(Debug, Default, Clone, Serialize, Deserialize, PartialEq, Eq, Validate)]
#[serde(rename_all = "camelCase")]
pub struct MessageHeaderResponse {
    /// Unique id for inter-element referencing
    pub id: Option<types::String>,

    /// Additional content defined by implementations
    pub extension: Option<Vec<types::Extension>>,

    /// Extensions that cannot be ignored even if unrecognized
    pub modifier_extension: Option<Vec<types::Extension>>,

    /// Bundle.identifier of original message
    pub identifier: types::Identifier,

    /// ok | transient-error | fatal-error
    pub code: types::Code,

    /// Specific list of hints/warnings/errors
    pub details: Option<types::Reference>,
}

#[cfg(test)]
mod tests {
    use super::*;
    type T = MessageHeader;

    #[test]
    fn test_default() {
        let _ = T::default();
    }

    #[test]
    fn test_serde_round_trip() {
        let value = T::default();
        let json = ::serde_json::to_value(&value).expect("to_value");
        let back: T = ::serde_json::from_value(json).expect("from_value");
        assert_eq!(value, back);
    }
}