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use std::error;
use std::fmt;
{{#withAWSV4Signature}}
use aws_sigv4;
{{/withAWSV4Signature}}

#[derive(Debug, Clone)]
pub struct ResponseContent {
    pub status: reqwest::StatusCode,
    pub content: String,
    pub entity: Option,
}

#[derive(Debug)]
pub enum Error {
    Reqwest(reqwest::Error),
    {{#supportMiddleware}}
    ReqwestMiddleware(reqwest_middleware::Error),
    {{/supportMiddleware}}
    Serde(serde_json::Error),
    Io(std::io::Error),
    ResponseError(ResponseContent),
    {{#withAWSV4Signature}}
    AWSV4SignatureError(aws_sigv4::http_request::Error),
    {{/withAWSV4Signature}}
    {{#supportTokenSource}}
    TokenSource(Box),
    {{/supportTokenSource}}
}

impl  fmt::Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let (module, e) = match self {
            Error::Reqwest(e) => ("reqwest", e.to_string()),
            {{#supportMiddleware}}
            Error::ReqwestMiddleware(e) => ("reqwest-middleware", e.to_string()),
            {{/supportMiddleware}}
            Error::Serde(e) => ("serde", e.to_string()),
            Error::Io(e) => ("IO", e.to_string()),
            Error::ResponseError(e) => ("response", format!("status code {}", e.status)),
            {{#withAWSV4Signature}}
            Error::AWSV4SignatureError(e) => ("aws v4 signature", e.to_string()),
            {{/withAWSV4Signature}}
            {{#supportTokenSource}}
            Error::TokenSource(e) => ("token source failure", e.to_string()),
            {{/supportTokenSource}}
        };
        write!(f, "error in {}: {}", module, e)
    }
}

impl  error::Error for Error {
    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
        Some(match self {
            Error::Reqwest(e) => e,
            {{#supportMiddleware}}
            Error::ReqwestMiddleware(e) => e,
            {{/supportMiddleware}}
            Error::Serde(e) => e,
            Error::Io(e) => e,
            Error::ResponseError(_) => return None,
            {{#withAWSV4Signature}}
            Error::AWSV4SignatureError(_) => return None,
            {{/withAWSV4Signature}}
            {{#supportTokenSource}}
            Error::TokenSource(e) => &**e,
            {{/supportTokenSource}}
        })
    }
}

impl  From for Error {
    fn from(e: reqwest::Error) -> Self {
        Error::Reqwest(e)
    }
}

{{#supportMiddleware}}
impl From for Error {
    fn from(e: reqwest_middleware::Error) -> Self {
        Error::ReqwestMiddleware(e)
    }
}

{{/supportMiddleware}}
impl  From for Error {
    fn from(e: serde_json::Error) -> Self {
        Error::Serde(e)
    }
}

impl  From for Error {
    fn from(e: std::io::Error) -> Self {
        Error::Io(e)
    }
}

pub fn urlencode>(s: T) -> String {
    ::url::form_urlencoded::byte_serialize(s.as_ref().as_bytes()).collect()
}

pub fn parse_deep_object(prefix: &str, value: &serde_json::Value) -> Vec<(String, String)> {
    if let serde_json::Value::Object(object) = value {
        let mut params = vec![];

        for (key, value) in object {
            match value {
                serde_json::Value::Object(_) => params.append(&mut parse_deep_object(
                    &format!("{}[{}]", prefix, key),
                    value,
                )),
                serde_json::Value::Array(array) => {
                    for (i, value) in array.iter().enumerate() {
                        params.append(&mut parse_deep_object(
                            &format!("{}[{}][{}]", prefix, key, i),
                            value,
                        ));
                    }
                },
                serde_json::Value::String(s) => params.push((format!("{}[{}]", prefix, key), s.clone())),
                _ => params.push((format!("{}[{}]", prefix, key), value.to_string())),
            }
        }

        return params;
    }

    unimplemented!("Only objects are supported with style=deepObject")
}

{{#apiInfo}}
{{#apis}}
pub mod {{{classFilename}}};
{{/apis}}
{{/apiInfo}}

pub mod configuration;

{{#topLevelApiClient}}
use std::sync::Arc;

pub trait Api {
    {{#apiInfo}}
    {{#apis}}
    fn {{{classFilename}}}(&self) -> &dyn {{{classFilename}}}::{{classname}};
    {{/apis}}
    {{/apiInfo}}
}

pub struct ApiClient {
    {{#apiInfo}}
    {{#apis}}
    {{{classFilename}}}: Box,
    {{/apis}}
    {{/apiInfo}}
}

impl ApiClient {
    pub fn new(configuration: Arc) -> Self {
        Self {
            {{#apiInfo}}
            {{#apis}}
            {{{classFilename}}}: Box::new({{{classFilename}}}::{{classname}}Client::new(configuration.clone())),
            {{/apis}}
            {{/apiInfo}}
        }
    }
}

impl Api for ApiClient {
    {{#apiInfo}}
    {{#apis}}
    fn {{{classFilename}}}(&self) -> &dyn {{{classFilename}}}::{{classname}} {
        self.{{{classFilename}}}.as_ref()
    }
    {{/apis}}
    {{/apiInfo}}
}

{{#mockall}}
#[cfg(feature = "mockall")]
pub struct MockApiClient {
    {{#apiInfo}}
    {{#apis}}
    pub {{{classFilename}}}_mock: {{{classFilename}}}::Mock{{classname}},
    {{/apis}}
    {{/apiInfo}}
}

#[cfg(feature = "mockall")]
impl MockApiClient {
    pub fn new() -> Self {
        Self {
            {{#apiInfo}}
            {{#apis}}
            {{{classFilename}}}_mock: {{{classFilename}}}::Mock{{classname}}::new(),
            {{/apis}}
            {{/apiInfo}}
        }
    }
}

#[cfg(feature = "mockall")]
impl Api for MockApiClient {
    {{#apiInfo}}
    {{#apis}}
    fn {{{classFilename}}}(&self) -> &dyn {{{classFilename}}}::{{classname}} {
        &self.{{{classFilename}}}_mock
    }
    {{/apis}}
    {{/apiInfo}}
}
{{/mockall}}

{{/topLevelApiClient}}