use std::collections::HashMap;
use std::cell::RefCell;
use std::default::Default;
use std::collections::BTreeMap;
use serde_json as json;
use std::io;
use std::fs;
use std::mem;
use std::thread::sleep;

use crate::client;

// ##############
// UTILITIES ###
// ############




// ########
// HUB ###
// ######

/// Central instance to access all CloudSecurityToken related resource activities
///
/// # Examples
///
/// Instantiate a new hub
///
/// ```test_harness,no_run
/// extern crate hyper;
/// extern crate hyper_rustls;
/// extern crate yup_oauth2 as oauth2;
/// extern crate google_sts1 as sts1;
/// use sts1::api::GoogleIdentityStsV1ExchangeTokenRequest;
/// use sts1::{Result, Error};
/// # async fn dox() {
/// use std::default::Default;
/// use oauth2;
/// use sts1::CloudSecurityToken;
/// 
/// // Get an ApplicationSecret instance by some means. It contains the `client_id` and 
/// // `client_secret`, among other things.
/// let secret: oauth2::ApplicationSecret = Default::default();
/// // Instantiate the authenticator. It will choose a suitable authentication flow for you, 
/// // unless you replace  `None` with the desired Flow.
/// // Provide your own `AuthenticatorDelegate` to adjust the way it operates and get feedback about 
/// // what's going on. You probably want to bring in your own `TokenStorage` to persist tokens and
/// // retrieve them from storage.
/// let auth = yup_oauth2::InstalledFlowAuthenticator::builder(
///         secret,
///         yup_oauth2::InstalledFlowReturnMethod::HTTPRedirect,
///     ).build().await.unwrap();
/// let mut hub = CloudSecurityToken::new(hyper::Client::builder().build(hyper_rustls::HttpsConnector::with_native_roots()), auth);
/// // As the method needs a request, you would usually fill it with the desired information
/// // into the respective structure. Some of the parts shown here might not be applicable !
/// // Values shown here are possibly random and not representative !
/// let mut req = GoogleIdentityStsV1ExchangeTokenRequest::default();
/// 
/// // You can configure optional parameters by calling the respective setters at will, and
/// // execute the final call using `doit()`.
/// // Values shown here are possibly random and not representative !
/// let result = hub.methods().token(req)
///              .doit().await;
/// 
/// match result {
///     Err(e) => match e {
///         // The Error enum provides details about what exactly happened.
///         // You can also just use its `Debug`, `Display` or `Error` traits
///          Error::HttpError(_)
///         |Error::Io(_)
///         |Error::MissingAPIKey
///         |Error::MissingToken(_)
///         |Error::Cancelled
///         |Error::UploadSizeLimitExceeded(_, _)
///         |Error::Failure(_)
///         |Error::BadRequest(_)
///         |Error::FieldClash(_)
///         |Error::JsonDecodeError(_, _) => println!("{}", e),
///     },
///     Ok(res) => println!("Success: {:?}", res),
/// }
/// # }
/// ```
pub struct CloudSecurityToken<> {
    client: hyper::Client<hyper_rustls::HttpsConnector<hyper::client::connect::HttpConnector>, hyper::body::Body>,
    auth: oauth2::authenticator::Authenticator<hyper_rustls::HttpsConnector<hyper::client::connect::HttpConnector>>,
    _user_agent: String,
    _base_url: String,
    _root_url: String,
}

impl<'a, > client::Hub for CloudSecurityToken<> {}

impl<'a, > CloudSecurityToken<> {

    pub fn new(client: hyper::Client<hyper_rustls::HttpsConnector<hyper::client::connect::HttpConnector>, hyper::body::Body>, authenticator: oauth2::authenticator::Authenticator<hyper_rustls::HttpsConnector<hyper::client::connect::HttpConnector>>) -> CloudSecurityToken<> {
        CloudSecurityToken {
            client,
            auth: authenticator,
            _user_agent: "google-api-rust-client/2.0.4".to_string(),
            _base_url: "https://sts.googleapis.com/".to_string(),
            _root_url: "https://sts.googleapis.com/".to_string(),
        }
    }

    pub fn methods(&'a self) -> MethodMethods<'a> {
        MethodMethods { hub: &self }
    }

    /// Set the user-agent header field to use in all requests to the server.
    /// It defaults to `google-api-rust-client/2.0.4`.
    ///
    /// Returns the previously set user-agent.
    pub fn user_agent(&mut self, agent_name: String) -> String {
        mem::replace(&mut self._user_agent, agent_name)
    }

    /// Set the base url to use in all requests to the server.
    /// It defaults to `https://sts.googleapis.com/`.
    ///
    /// Returns the previously set base url.
    pub fn base_url(&mut self, new_base_url: String) -> String {
        mem::replace(&mut self._base_url, new_base_url)
    }

    /// Set the root url to use in all requests to the server.
    /// It defaults to `https://sts.googleapis.com/`.
    ///
    /// Returns the previously set root url.
    pub fn root_url(&mut self, new_root_url: String) -> String {
        mem::replace(&mut self._root_url, new_root_url)
    }
}


// ############
// SCHEMAS ###
// ##########
/// Request message for ExchangeToken.
/// 
/// # Activities
/// 
/// This type is used in activities, which are methods you may call on this type or where this type is involved in. 
/// The list links the activity name, along with information about where it is used (one of *request* and *response*).
/// 
/// * [token](MethodTokenCall) (request)
/// 
#[derive(Default, Clone, Debug, Serialize, Deserialize)]
pub struct GoogleIdentityStsV1ExchangeTokenRequest {
    /// The full resource name of the identity provider; for example: `//iam.googleapis.com/projects//workloadIdentityPools//providers/`. Required when exchanging an external credential for a Google access token.
    pub audience: Option<String>,
    /// Required. The grant type. Must be `urn:ietf:params:oauth:grant-type:token-exchange`, which indicates a token exchange.
    #[serde(rename="grantType")]
    pub grant_type: Option<String>,
    /// A set of features that Security Token Service supports, in addition to the standard OAuth 2.0 token exchange, formatted as a serialized JSON object of Options.
    pub options: Option<String>,
    /// Required. An identifier for the type of requested security token. Must be `urn:ietf:params:oauth:token-type:access_token`.
    #[serde(rename="requestedTokenType")]
    pub requested_token_type: Option<String>,
    /// The OAuth 2.0 scopes to include on the resulting access token, formatted as a list of space-delimited, case-sensitive strings. Required when exchanging an external credential for a Google access token.
    pub scope: Option<String>,
    /// Required. The input token. This token is a either an external credential issued by a workload identity pool provider, or a short-lived access token issued by Google. If the token is an OIDC JWT, it must use the JWT format defined in [RFC 7523](https://tools.ietf.org/html/rfc7523), and the `subject_token_type` must be `urn:ietf:params:oauth:token-type:jwt`. The following headers are required: - `kid`: The identifier of the signing key securing the JWT. - `alg`: The cryptographic algorithm securing the JWT. Must be `RS256`. The following payload fields are required. For more information, see [RFC 7523, Section 3](https://tools.ietf.org/html/rfc7523#section-3): - `iss`: The issuer of the token. The issuer must provide a discovery document at the URL `/.well-known/openid-configuration`, where `` is the value of this field. The document must be formatted according to section 4.2 of the [OIDC 1.0 Discovery specification](https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationResponse). - `iat`: The issue time, in seconds, since the Unix epoch. Must be in the past. - `exp`: The expiration time, in seconds, since the Unix epoch. Must be less than 48 hours after `iat`. Shorter expiration times are more secure. If possible, we recommend setting an expiration time less than 6 hours. - `sub`: The identity asserted in the JWT. - `aud`: Configured by the mapper policy. The default value is the service account's unique ID. Example header: ``` { "alg": "RS256", "kid": "us-east-11" } ``` Example payload: ``` { "iss": "https://accounts.google.com", "iat": 1517963104, "exp": 1517966704, "aud": "113475438248934895348", "sub": "113475438248934895348", "my_claims": { "additional_claim": "value" } } ``` If `subject_token` is for AWS, it must be a serialized `GetCallerIdentity` token. This token contains the same information as a request to the AWS [`GetCallerIdentity()`](https://docs.aws.amazon.com/STS/latest/APIReference/API_GetCallerIdentity) method, as well as the AWS [signature](https://docs.aws.amazon.com/general/latest/gr/signing_aws_api_requests.html) for the request information. Use Signature Version 4. Format the request as URL-encoded JSON, and set the `subject_token_type` parameter to `urn:ietf:params:aws:token-type:aws4_request`. The following parameters are required: - `url`: The URL of the AWS STS endpoint for `GetCallerIdentity()`, such as `https://sts.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15`. Regional endpoints are also supported. - `method`: The HTTP request method: `POST`. - `headers`: The HTTP request headers, which must include: - `Authorization`: The request signature. - `x-amz-date`: The time you will send the request, formatted as an [ISO8601 Basic](https://docs.aws.amazon.com/general/latest/gr/sigv4_elements.html#sigv4_elements_date) string. This value is typically set to the current time and is used to help prevent replay attacks. - `host`: The hostname of the `url` field; for example, `sts.amazonaws.com`. - `x-goog-cloud-target-resource`: The full, canonical resource name of the workload identity pool provider, with or without an `https:` prefix. To help ensure data integrity, we recommend including this header in the `SignedHeaders` field of the signed request. For example: //iam.googleapis.com/projects//locations//workloadIdentityPools//providers/ https://iam.googleapis.com/projects//locations//workloadIdentityPools//providers/ If you are using temporary security credentials provided by AWS, you must also include the header `x-amz-security-token`, with the value set to the session token. The following example shows a `GetCallerIdentity` token: ``` { "headers": [ {"key": "x-amz-date", "value": "20200815T015049Z"}, {"key": "Authorization", "value": "AWS4-HMAC-SHA256+Credential=$credential,+SignedHeaders=host;x-amz-date;x-goog-cloud-target-resource,+Signature=$signature"}, {"key": "x-goog-cloud-target-resource", "value": "//iam.googleapis.com/projects//locations//workloadIdentityPools//providers/"}, {"key": "host", "value": "sts.amazonaws.com"} . ], "method": "POST", "url": "https://sts.amazonaws.com?Action=GetCallerIdentity&Version=2011-06-15" } ``` You can also use a Google-issued OAuth 2.0 access token with this field to obtain an access token with new security attributes applied, such as a Credential Access Boundary. In this case, set `subject_token_type` to `urn:ietf:params:oauth:token-type:access_token`. If an access token already contains security attributes, you cannot apply additional security attributes.
    #[serde(rename="subjectToken")]
    pub subject_token: Option<String>,
    /// Required. An identifier that indicates the type of the security token in the `subject_token` parameter. Supported values are `urn:ietf:params:oauth:token-type:jwt`, `urn:ietf:params:aws:token-type:aws4_request`, and `urn:ietf:params:oauth:token-type:access_token`.
    #[serde(rename="subjectTokenType")]
    pub subject_token_type: Option<String>,
}

impl client::RequestValue for GoogleIdentityStsV1ExchangeTokenRequest {}


/// Response message for ExchangeToken.
/// 
/// # Activities
/// 
/// This type is used in activities, which are methods you may call on this type or where this type is involved in. 
/// The list links the activity name, along with information about where it is used (one of *request* and *response*).
/// 
/// * [token](MethodTokenCall) (response)
/// 
#[derive(Default, Clone, Debug, Serialize, Deserialize)]
pub struct GoogleIdentityStsV1ExchangeTokenResponse {
    /// An OAuth 2.0 security token, issued by Google, in response to the token exchange request. Tokens can vary in size, depending in part on the size of mapped claims, up to a maximum of 12288 bytes (12 KB). Google reserves the right to change the token size and the maximum length at any time.
    pub access_token: Option<String>,
    /// The amount of time, in seconds, between the time when the access token was issued and the time when the access token will expire. This field is absent when the `subject_token` in the request is a Google-issued, short-lived access token. In this case, the access token has the same expiration time as the `subject_token`.
    pub expires_in: Option<i32>,
    /// The token type. Always matches the value of `requested_token_type` from the request.
    pub issued_token_type: Option<String>,
    /// The type of access token. Always has the value `Bearer`.
    pub token_type: Option<String>,
}

impl client::ResponseResult for GoogleIdentityStsV1ExchangeTokenResponse {}



// ###################
// MethodBuilders ###
// #################

/// A builder providing access to all free methods, which are not associated with a particular resource.
/// It is not used directly, but through the `CloudSecurityToken` hub.
///
/// # Example
///
/// Instantiate a resource builder
///
/// ```test_harness,no_run
/// extern crate hyper;
/// extern crate hyper_rustls;
/// extern crate yup_oauth2 as oauth2;
/// extern crate google_sts1 as sts1;
/// 
/// # async fn dox() {
/// use std::default::Default;
/// use oauth2;
/// use sts1::CloudSecurityToken;
/// 
/// let secret: oauth2::ApplicationSecret = Default::default();
/// let auth = yup_oauth2::InstalledFlowAuthenticator::builder(
///         secret,
///         yup_oauth2::InstalledFlowReturnMethod::HTTPRedirect,
///     ).build().await.unwrap();
/// let mut hub = CloudSecurityToken::new(hyper::Client::builder().build(hyper_rustls::HttpsConnector::with_native_roots()), auth);
/// // Usually you wouldn't bind this to a variable, but keep calling *CallBuilders*
/// // like `token(...)`
/// // to build up your call.
/// let rb = hub.methods();
/// # }
/// ```
pub struct MethodMethods<'a>
    where  {

    hub: &'a CloudSecurityToken<>,
}

impl<'a> client::MethodsBuilder for MethodMethods<'a> {}

impl<'a> MethodMethods<'a> {
    
    /// Create a builder to help you perform the following task:
    ///
    /// Exchanges a credential for a Google OAuth 2.0 access token. The token asserts an external identity within a workload identity pool, or it applies a Credential Access Boundary to a Google access token. When you call this method, do not send the `Authorization` HTTP header in the request. This method does not require the `Authorization` header, and using the header can cause the request to fail.
    /// 
    /// # Arguments
    ///
    /// * `request` - No description provided.
    pub fn token(&self, request: GoogleIdentityStsV1ExchangeTokenRequest) -> MethodTokenCall<'a> {
        MethodTokenCall {
            hub: self.hub,
            _request: request,
            _delegate: Default::default(),
            _additional_params: Default::default(),
        }
    }
}





// ###################
// CallBuilders   ###
// #################

/// Exchanges a credential for a Google OAuth 2.0 access token. The token asserts an external identity within a workload identity pool, or it applies a Credential Access Boundary to a Google access token. When you call this method, do not send the `Authorization` HTTP header in the request. This method does not require the `Authorization` header, and using the header can cause the request to fail.
///
/// A builder for the *token* method.
/// It is not used directly, but through a `MethodMethods` instance.
///
/// # Example
///
/// Instantiate a resource method builder
///
/// ```test_harness,no_run
/// # extern crate hyper;
/// # extern crate hyper_rustls;
/// # extern crate yup_oauth2 as oauth2;
/// # extern crate google_sts1 as sts1;
/// use sts1::api::GoogleIdentityStsV1ExchangeTokenRequest;
/// # async fn dox() {
/// # use std::default::Default;
/// # use oauth2;
/// # use sts1::CloudSecurityToken;
/// 
/// # let secret: oauth2::ApplicationSecret = Default::default();
/// # let auth = yup_oauth2::InstalledFlowAuthenticator::builder(
/// #         secret,
/// #         yup_oauth2::InstalledFlowReturnMethod::HTTPRedirect,
/// #     ).build().await.unwrap();
/// # let mut hub = CloudSecurityToken::new(hyper::Client::builder().build(hyper_rustls::HttpsConnector::with_native_roots()), auth);
/// // As the method needs a request, you would usually fill it with the desired information
/// // into the respective structure. Some of the parts shown here might not be applicable !
/// // Values shown here are possibly random and not representative !
/// let mut req = GoogleIdentityStsV1ExchangeTokenRequest::default();
/// 
/// // You can configure optional parameters by calling the respective setters at will, and
/// // execute the final call using `doit()`.
/// // Values shown here are possibly random and not representative !
/// let result = hub.methods().token(req)
///              .doit().await;
/// # }
/// ```
pub struct MethodTokenCall<'a>
    where  {

    hub: &'a CloudSecurityToken<>,
    _request: GoogleIdentityStsV1ExchangeTokenRequest,
    _delegate: Option<&'a mut dyn client::Delegate>,
    _additional_params: HashMap<String, String>,
}

impl<'a> client::CallBuilder for MethodTokenCall<'a> {}

impl<'a> MethodTokenCall<'a> {


    /// Perform the operation you have build so far.
    pub async fn doit(mut self) -> client::Result<(hyper::Response<hyper::body::Body>, GoogleIdentityStsV1ExchangeTokenResponse)> {
        use std::io::{Read, Seek};
        use hyper::header::{CONTENT_TYPE, CONTENT_LENGTH, AUTHORIZATION, USER_AGENT, LOCATION};
        use client::ToParts;
        let mut dd = client::DefaultDelegate;
        let mut dlg: &mut dyn client::Delegate = match self._delegate {
            Some(d) => d,
            None => &mut dd
        };
        dlg.begin(client::MethodInfo { id: "sts.token",
                               http_method: hyper::Method::POST });
        let mut params: Vec<(&str, String)> = Vec::with_capacity(3 + self._additional_params.len());
        for &field in ["alt"].iter() {
            if self._additional_params.contains_key(field) {
                dlg.finished(false);
                return Err(client::Error::FieldClash(field));
            }
        }
        for (name, value) in self._additional_params.iter() {
            params.push((&name, value.clone()));
        }

        params.push(("alt", "json".to_string()));

        let mut url = self.hub._base_url.clone() + "v1/token";
        
        let key = dlg.api_key();
        match key {
            Some(value) => params.push(("key", value)),
            None => {
                dlg.finished(false);
                return Err(client::Error::MissingAPIKey)
            }
        }


        let url = url::Url::parse_with_params(&url, params).unwrap();

        let mut json_mime_type: mime::Mime = "application/json".parse().unwrap();
        let mut request_value_reader =
            {
                let mut value = json::value::to_value(&self._request).expect("serde to work");
                client::remove_json_null_values(&mut value);
                let mut dst = io::Cursor::new(Vec::with_capacity(128));
                json::to_writer(&mut dst, &value).unwrap();
                dst
            };
        let request_size = request_value_reader.seek(io::SeekFrom::End(0)).unwrap();
        request_value_reader.seek(io::SeekFrom::Start(0)).unwrap();


        loop {
            request_value_reader.seek(io::SeekFrom::Start(0)).unwrap();
            let mut req_result = {
                let client = &self.hub.client;
                dlg.pre_request();
                let mut req_builder = hyper::Request::builder().method(hyper::Method::POST).uri(url.clone().into_string())
                        .header(USER_AGENT, self.hub._user_agent.clone());


                        let request = req_builder
                        .header(CONTENT_TYPE, format!("{}", json_mime_type.to_string()))
                        .header(CONTENT_LENGTH, request_size as u64)
                        .body(hyper::body::Body::from(request_value_reader.get_ref().clone()));

                client.request(request.unwrap()).await
                
            };

            match req_result {
                Err(err) => {
                    if let client::Retry::After(d) = dlg.http_error(&err) {
                        sleep(d);
                        continue;
                    }
                    dlg.finished(false);
                    return Err(client::Error::HttpError(err))
                }
                Ok(mut res) => {
                    if !res.status().is_success() {
                        let res_body_string = client::get_body_as_string(res.body_mut()).await;

                        let json_server_error = json::from_str::<client::JsonServerError>(&res_body_string).ok();
                        let server_error = json::from_str::<client::ServerError>(&res_body_string)
                            .or_else(|_| json::from_str::<client::ErrorResponse>(&res_body_string).map(|r| r.error))
                            .ok();

                        if let client::Retry::After(d) = dlg.http_failure(&res,
                                                              json_server_error,
                                                              server_error) {
                            sleep(d);
                            continue;
                        }
                        dlg.finished(false);
                        return match json::from_str::<client::ErrorResponse>(&res_body_string){
                            Err(_) => Err(client::Error::Failure(res)),
                            Ok(serr) => Err(client::Error::BadRequest(serr))
                        }
                    }
                    let result_value = {
                        let res_body_string = client::get_body_as_string(res.body_mut()).await;

                        match json::from_str(&res_body_string) {
                            Ok(decoded) => (res, decoded),
                            Err(err) => {
                                dlg.response_json_decode_error(&res_body_string, &err);
                                return Err(client::Error::JsonDecodeError(res_body_string, err));
                            }
                        }
                    };

                    dlg.finished(true);
                    return Ok(result_value)
                }
            }
        }
    }


    ///
    /// Sets the *request* property to the given value.
    ///
    /// Even though the property as already been set when instantiating this call,
    /// we provide this method for API completeness.
    pub fn request(mut self, new_value: GoogleIdentityStsV1ExchangeTokenRequest) -> MethodTokenCall<'a> {
        self._request = new_value;
        self
    }
    /// The delegate implementation is consulted whenever there is an intermediate result, or if something goes wrong
    /// while executing the actual API request.
    /// 
    /// It should be used to handle progress information, and to implement a certain level of resilience.
    ///
    /// Sets the *delegate* property to the given value.
    pub fn delegate(mut self, new_value: &'a mut dyn client::Delegate) -> MethodTokenCall<'a> {
        self._delegate = Some(new_value);
        self
    }

    /// Set any additional parameter of the query string used in the request.
    /// It should be used to set parameters which are not yet available through their own
    /// setters.
    ///
    /// Please note that this method must not be used to set any of the known parameters
    /// which have their own setter method. If done anyway, the request will fail.
    ///
    /// # Additional Parameters
    ///
    /// * *$.xgafv* (query-string) - V1 error format.
    /// * *access_token* (query-string) - OAuth access token.
    /// * *alt* (query-string) - Data format for response.
    /// * *callback* (query-string) - JSONP
    /// * *fields* (query-string) - Selector specifying which fields to include in a partial response.
    /// * *key* (query-string) - API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.
    /// * *oauth_token* (query-string) - OAuth 2.0 token for the current user.
    /// * *prettyPrint* (query-boolean) - Returns response with indentations and line breaks.
    /// * *quotaUser* (query-string) - Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters.
    /// * *uploadType* (query-string) - Legacy upload protocol for media (e.g. "media", "multipart").
    /// * *upload_protocol* (query-string) - Upload protocol for media (e.g. "raw", "multipart").
    pub fn param<T>(mut self, name: T, value: T) -> MethodTokenCall<'a>
                                                        where T: AsRef<str> {
        self._additional_params.insert(name.as_ref().to_string(), value.as_ref().to_string());
        self
    }

}