/*!
* Provides a more natural builder interface for constructing ResourceNames.
*
* The builder pattern allows for a more readable construction of ResourceNames, and in this case we
* provide a number of *verb* prefixes on *noun* constructors, so we have `in_region` as well as
* `and_region` which is more readable if it is preceded by `in_partition`. For the account id
* field there is `in_account`, `and_account`, `any_account`, and `owned_by`; all of these
* accomplish the same goal but allow for a choice that makes code easir to understand.
*
* # Resource-Specific Constructor Functions
*
* For the service-specific submodules (`iam`, `lambda`, `s3`, etc.) the functions are simply named
* for the noun that represents the resource type as described in the AWS documentation. As the
* partition in commonly left to default to "aws" there are also a set of `{noun}_in()` functions
* that take a partition, and corresponding `{noun}()` functions which do not.
*
* In some cases where an ResourceName may be dependent on another, for example an S3 object ResourceName might be
* constructed from an existing bucket ResourceName, additional `{noun}_from(other,...)` functions will
* be provided.
*
* Note that the final `build()` function will call `validate()`, and so it is possible to call
* intermediate functions with bad data which is only caught at build time.
*
* # Example
*
* The following shows the construction of an AWS versioned layer ResourceName.
*
* ```rust
* use aws_arn::builder::{ArnBuilder, ResourceBuilder};
* use aws_arn::{
*     AccountIdentifier, Identifier, IdentifierLike, ResourceIdentifier, ResourceName
* };
* use aws_arn::known::{Region, Service};
* use std::str::FromStr;
*
* let arn: ResourceName = ArnBuilder::service_id(Service::Lambda.into())
*     .resource(
*         ResourceBuilder::typed(Identifier::new_unchecked("layer"))
*             .resource_name(Identifier::new_unchecked("my-layer"))
*             .version(3)
*             .build_qualified_id(),
*     )
*     .in_region_id(Region::UsEast2.into())
*     .owned_by(AccountIdentifier::from_str("123456789012").unwrap())
*     .into();
* println!("ResourceName: '{}'", arn);
* ```
*
* This should print `ResourceName: 'arn:aws:lambda:us-east-2:123456789012:layer:my-layer:3'`.
*/

use crate::known::{Partition, Region, Service};
use crate::{AccountIdentifier, Identifier, IdentifierLike, ResourceIdentifier, ResourceName};

// ------------------------------------------------------------------------------------------------
// Public Types
// ------------------------------------------------------------------------------------------------

///
/// Builder type for an AWS `ResourceName`.
///
#[derive(Clone, Debug)]
pub struct ArnBuilder {
    arn: ResourceName,
}

///
/// Builder type for a `ResourceIdentifier`.
///
/// The methods `build_resource_path` and `build_qualified_id` are used to construct identifiers
/// with either the '/' or ':' separator between the collected components.
///
#[derive(Clone, Debug, Default)]
pub struct ResourceBuilder {
    resource: Vec<ResourceIdentifier>,
}

// ------------------------------------------------------------------------------------------------
// Implementations
// ------------------------------------------------------------------------------------------------

impl From<ArnBuilder> for ResourceName {
    fn from(v: ArnBuilder) -> Self {
        v.arn
    }
}

impl From<&mut ArnBuilder> for ResourceName {
    fn from(v: &mut ArnBuilder) -> Self {
        v.arn.clone()
    }
}

impl ArnBuilder {
    /// Construct an ResourceName for the specified `service`.
    pub fn service(service: Service) -> Self {
        Self::service_id(service.into())
    }

    /// Construct an ResourceName for the specified `service`.
    pub fn service_id(service: Identifier) -> Self {
        Self {
            arn: ResourceName {
                partition: None,
                service,
                region: None,
                account_id: None,
                resource: ResourceIdentifier::default(),
            },
        }
    }

    /// Set a specific `partition` for this ResourceName.
    pub fn in_partition(&mut self, partition: Partition) -> &mut Self {
        self.in_partition_id(partition.into())
    }

    /// Set a specific `partition` for this ResourceName.
    pub fn in_partition_id(&mut self, partition: Identifier) -> &mut Self {
        self.arn.partition = Some(partition);
        self
    }

    /// Set a specific `partition` for this ResourceName.
    pub fn in_default_partition(&mut self) -> &mut Self {
        self.arn.partition = Some(Partition::default().into());
        self
    }

    /// Set a specific `partition` for this ResourceName.
    pub fn in_any_partition(&mut self) -> &mut Self {
        self.arn.partition = None;
        self
    }

    /// Set a specific `region` for this ResourceName.
    pub fn in_region(&mut self, region: Region) -> &mut Self {
        self.in_region_id(region.into())
    }

    /// Set a specific `region` for this ResourceName.
    pub fn in_region_id(&mut self, region: Identifier) -> &mut Self {
        self.arn.region = Some(region);
        self
    }

    /// Set a specific `region` for this ResourceName.
    pub fn and_region(&mut self, region: Region) -> &mut Self {
        self.in_region_id(region.into())
    }

    /// Set a specific `region` for this ResourceName.
    pub fn and_region_id(&mut self, region: Identifier) -> &mut Self {
        self.in_region_id(region)
    }

    /// Set `region` to a wildcard for this ResourceName.
    pub fn in_any_region(&mut self) -> &mut Self {
        self.in_region_id(Identifier::default())
    }

    /// Set a specific `account` for this ResourceName.
    pub fn in_account(&mut self, account: AccountIdentifier) -> &mut Self {
        self.arn.account_id = Some(account);
        self
    }

    /// Set a specific `account` for this ResourceName.
    pub fn and_account(&mut self, account: AccountIdentifier) -> &mut Self {
        self.in_account(account)
    }

    /// Set a specific `account` for this ResourceName.
    pub fn owned_by(&mut self, account: AccountIdentifier) -> &mut Self {
        self.in_account(account)
    }

    /// Set `account` to a wildcard for this ResourceName.
    pub fn in_any_account(&mut self) -> &mut Self {
        self.in_account(AccountIdentifier::default())
    }

    /// Set a specific `resource` for this ResourceName.
    pub fn resource(&mut self, resource: ResourceIdentifier) -> &mut Self {
        self.arn.resource = resource;
        self
    }

    /// Set a specific `resource` for this ResourceName.
    pub fn is(&mut self, resource: ResourceIdentifier) -> &mut Self {
        self.resource(resource)
    }

    /// Set a specific `resource` for this ResourceName.
    pub fn a(&mut self, resource: ResourceIdentifier) -> &mut Self {
        self.resource(resource)
    }

    /// Set `resource` to a wildcard for this ResourceName.
    pub fn any_resource(&mut self) -> &mut Self {
        self.arn.resource = ResourceIdentifier::any();
        self
    }

    /// Set `resource` to a wildcard for this ResourceName.
    pub fn for_any_resource(&mut self) -> &mut Self {
        self.any_resource()
    }
}

// ------------------------------------------------------------------------------------------------

impl From<ResourceIdentifier> for ResourceBuilder {
    fn from(v: ResourceIdentifier) -> Self {
        Self { resource: vec![v] }
    }
}

impl From<Identifier> for ResourceBuilder {
    fn from(v: Identifier) -> Self {
        Self {
            resource: vec![v.into()],
        }
    }
}

impl ResourceBuilder {
    /// Construct a new resource builder containing only the provided identifier.
    pub fn named(id: Identifier) -> Self {
        Self {
            resource: vec![id.into()],
        }
    }

    /// Construct a new resource builder containing only the provided identifier.
    pub fn typed(id: Identifier) -> Self {
        Self {
            resource: vec![id.into()],
        }
    }

    /// Add the provided `ResourceIdentifier` to the inner list of components.
    pub fn add(&mut self, id: ResourceIdentifier) -> &mut Self {
        self.resource.push(id);
        self
    }

    /// Add the provided `ResourceIdentifier` to the inner list of components.
    pub fn qualified_name(&mut self, id: ResourceIdentifier) -> &mut Self {
        self.resource.push(id);
        self
    }

    /// Add the provided `ResourceIdentifier` to the inner list of components.
    pub fn resource_path(&mut self, id: ResourceIdentifier) -> &mut Self {
        self.resource.push(id);
        self
    }

    /// Add the provided `Identifier` to the inner list of components.
    pub fn type_name(&mut self, id: Identifier) -> &mut Self {
        self.resource.push(id.into());
        self
    }

    /// Add the provided `Identifier` to the inner list of components.
    pub fn resource_name(&mut self, id: Identifier) -> &mut Self {
        self.resource.push(id.into());
        self
    }

    /// Add the provided `Identifier` to the inner list of components.
    pub fn sub_resource_name(&mut self, id: Identifier) -> &mut Self {
        self.resource.push(id.into());
        self
    }

    /// Add the provided integer version number to the inner list of components.
    pub fn version(&mut self, v: u32) -> &mut Self {
        self.resource
            .push(Identifier::new_unchecked(&v.to_string()).into());
        self
    }

    /// Return the iner list of components as a resource identifier path.
    pub fn build_resource_path(&mut self) -> ResourceIdentifier {
        ResourceIdentifier::from_path(&self.resource)
    }

    /// Return the iner list of components as a qualified resource identifier.
    pub fn build_qualified_id(&mut self) -> ResourceIdentifier {
        ResourceIdentifier::from_qualified(&self.resource)
    }
}

// ------------------------------------------------------------------------------------------------
// Modules
// ------------------------------------------------------------------------------------------------

pub mod cognito;

pub mod iam;

pub mod lambda;

pub mod s3;