// File: crates/hyperswitch_connectors/src/connectors/wellsfargo.rs

pub mod transformers;

use std::sync::LazyLock;

use base64::Engine;
use common_enums::enums;
use common_utils::{
    consts,
    errors::CustomResult,
    ext_traits::BytesExt,
    request::{Method, Request, RequestBuilder, RequestContent},
    types::{AmountConvertor, MinorUnit, StringMajorUnit, StringMajorUnitForConnector},
};
use error_stack::{report, Report, ResultExt};
use hyperswitch_domain_models::{
    payment_method_data::PaymentMethodData,
    router_data::{AccessToken, ErrorResponse, RouterData},
    router_flow_types::{
        access_token_auth::AccessTokenAuth,
        mandate_revoke::MandateRevoke,
        payments::{
            Authorize, Capture, IncrementalAuthorization, PSync, PaymentMethodToken, Session,
            SetupMandate, Void,
        },
        refunds::{Execute, RSync},
    },
    router_request_types::{
        AccessTokenRequestData, MandateRevokeRequestData, PaymentMethodTokenizationData,
        PaymentsAuthorizeData, PaymentsCancelData, PaymentsCaptureData,
        PaymentsIncrementalAuthorizationData, PaymentsSessionData, PaymentsSyncData, RefundsData,
        SetupMandateRequestData,
    },
    router_response_types::{
        ConnectorInfo, MandateRevokeResponseData, PaymentMethodDetails, PaymentsResponseData,
        RefundsResponseData, SupportedPaymentMethods, SupportedPaymentMethodsExt,
    },
    types::{
        MandateRevokeRouterData, PaymentsAuthorizeRouterData, PaymentsCancelRouterData,
        PaymentsCaptureRouterData, PaymentsIncrementalAuthorizationRouterData,
        PaymentsSyncRouterData, RefundExecuteRouterData, RefundSyncRouterData,
        SetupMandateRouterData,
    },
};
use hyperswitch_interfaces::{
    api::{
        self,
        refunds::{Refund, RefundExecute, RefundSync},
        ConnectorCommon, ConnectorCommonExt, ConnectorIntegration, ConnectorSpecifications,
        ConnectorValidation,
    },
    configs::Connectors,
    errors,
    events::connector_api_logs::ConnectorEvent,
    types::{
        IncrementalAuthorizationType, MandateRevokeType, PaymentsAuthorizeType,
        PaymentsCaptureType, PaymentsSyncType, PaymentsVoidType, RefundExecuteType, RefundSyncType,
        Response, SetupMandateType,
    },
    webhooks,
};
use masking::{ExposeInterface, Mask, Maskable, PeekInterface};
use ring::{digest, hmac};
use time::OffsetDateTime;
use transformers as wellsfargo;
use url::Url;

use crate::{
    constants::{self, headers},
    types::ResponseRouterData,
    utils::{self, convert_amount, PaymentMethodDataType, RefundsRequestData},
};
#[derive(Clone)]
pub struct Wellsfargo {
    amount_converter: &'static (dyn AmountConvertor<Output = StringMajorUnit> + Sync),
}

impl Wellsfargo {
    pub fn new() -> &'static Self {
        &Self {
            amount_converter: &StringMajorUnitForConnector,
        }
    }

    pub fn generate_digest(&self, payload: &[u8]) -> String {
        let payload_digest = digest::digest(&digest::SHA256, payload);
        consts::BASE64_ENGINE.encode(payload_digest)
    }

    pub fn generate_signature(
        &self,
        auth: wellsfargo::WellsfargoAuthType,
        host: String,
        resource: &str,
        payload: &String,
        date: OffsetDateTime,
        http_method: Method,
    ) -> CustomResult<String, errors::ConnectorError> {
        let wellsfargo::WellsfargoAuthType {
            api_key,
            merchant_account,
            api_secret,
        } = auth;
        let is_post_method = matches!(http_method, Method::Post);
        let is_patch_method = matches!(http_method, Method::Patch);
        let is_delete_method = matches!(http_method, Method::Delete);
        let digest_str = if is_post_method || is_patch_method {
            "digest "
        } else {
            ""
        };
        let headers = format!("host date (request-target) {digest_str}v-c-merchant-id");
        let request_target = if is_post_method {
            format!("(request-target): post {resource}\ndigest: SHA-256={payload}\n")
        } else if is_patch_method {
            format!("(request-target): patch {resource}\ndigest: SHA-256={payload}\n")
        } else if is_delete_method {
            format!("(request-target): delete {resource}\n")
        } else {
            format!("(request-target): get {resource}\n")
        };
        let signature_string = format!(
            "host: {host}\ndate: {date}\n{request_target}v-c-merchant-id: {}",
            merchant_account.peek()
        );
        let key_value = consts::BASE64_ENGINE
            .decode(api_secret.expose())
            .change_context(errors::ConnectorError::InvalidConnectorConfig {
                config: "connector_account_details.api_secret",
            })?;
        let key = hmac::Key::new(hmac::HMAC_SHA256, &key_value);
        let signature_value =
            consts::BASE64_ENGINE.encode(hmac::sign(&key, signature_string.as_bytes()).as_ref());
        let signature_header = format!(
            r#"keyid="{}", algorithm="HmacSHA256", headers="{headers}", signature="{signature_value}""#,
            api_key.peek()
        );

        Ok(signature_header)
    }
}

impl ConnectorCommon for Wellsfargo {
    fn id(&self) -> &'static str {
        "wellsfargo"
    }

    fn common_get_content_type(&self) -> &'static str {
        "application/json;charset=utf-8"
    }

    fn base_url<'a>(&self, connectors: &'a Connectors) -> &'a str {
        connectors.wellsfargo.base_url.as_ref()
    }

    fn get_currency_unit(&self) -> api::CurrencyUnit {
        api::CurrencyUnit::Base
    }

    fn build_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        let response: Result<
            wellsfargo::WellsfargoErrorResponse,
            Report<common_utils::errors::ParsingError>,
        > = res.response.parse_struct("Wellsfargo ErrorResponse");

        let error_message = if res.status_code == 401 {
            constants::CONNECTOR_UNAUTHORIZED_ERROR
        } else {
            hyperswitch_interfaces::consts::NO_ERROR_MESSAGE
        };
        match response {
            Ok(transformers::WellsfargoErrorResponse::StandardError(response)) => {
                event_builder.map(|i| i.set_error_response_body(&response));
                router_env::logger::info!(connector_response=?response);

                let (code, message, reason) = match response.error_information {
                    Some(ref error_info) => {
                        let detailed_error_info = error_info.details.as_ref().map(|details| {
                            details
                                .iter()
                                .map(|det| format!("{} : {}", det.field, det.reason))
                                .collect::<Vec<_>>()
                                .join(", ")
                        });
                        (
                            error_info.reason.clone(),
                            error_info.reason.clone(),
                            transformers::get_error_reason(
                                Some(error_info.message.clone()),
                                detailed_error_info,
                                None,
                            ),
                        )
                    }
                    None => {
                        let detailed_error_info = response.details.map(|details| {
                            details
                                .iter()
                                .map(|det| format!("{} : {}", det.field, det.reason))
                                .collect::<Vec<_>>()
                                .join(", ")
                        });
                        (
                            response.reason.clone().map_or(
                                hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string(),
                                |reason| reason.to_string(),
                            ),
                            response
                                .reason
                                .map_or(error_message.to_string(), |reason| reason.to_string()),
                            transformers::get_error_reason(
                                response.message,
                                detailed_error_info,
                                None,
                            ),
                        )
                    }
                };

                Ok(ErrorResponse {
                    status_code: res.status_code,
                    code,
                    message,
                    reason,
                    attempt_status: None,
                    connector_transaction_id: None,
                    network_advice_code: None,
                    network_decline_code: None,
                    network_error_message: None,
                    connector_metadata: None,
                })
            }
            Ok(transformers::WellsfargoErrorResponse::AuthenticationError(response)) => {
                event_builder.map(|i| i.set_error_response_body(&response));
                router_env::logger::info!(connector_response=?response);
                Ok(ErrorResponse {
                    status_code: res.status_code,
                    code: hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string(),
                    message: response.response.rmsg.clone(),
                    reason: Some(response.response.rmsg),
                    attempt_status: None,
                    connector_transaction_id: None,
                    network_advice_code: None,
                    network_decline_code: None,
                    network_error_message: None,
                    connector_metadata: None,
                })
            }
            Ok(transformers::WellsfargoErrorResponse::NotAvailableError(response)) => {
                event_builder.map(|i| i.set_error_response_body(&response));
                router_env::logger::info!(connector_response=?response);
                let error_response = response
                    .errors
                    .iter()
                    .map(|error_info| {
                        format!(
                            "{}: {}",
                            error_info.error_type.clone().unwrap_or("".to_string()),
                            error_info.message.clone().unwrap_or("".to_string())
                        )
                    })
                    .collect::<Vec<String>>()
                    .join(" & ");
                Ok(ErrorResponse {
                    status_code: res.status_code,
                    code: hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string(),
                    message: error_response.clone(),
                    reason: Some(error_response),
                    attempt_status: None,
                    connector_transaction_id: None,
                    network_advice_code: None,
                    network_decline_code: None,
                    network_error_message: None,
                    connector_metadata: None,
                })
            }
            Err(error_msg) => {
                event_builder.map(|event| event.set_error(serde_json::json!({"error": res.response.escape_ascii().to_string(), "status_code": res.status_code})));
                router_env::logger::error!(deserialization_error =? error_msg);
                utils::handle_json_response_deserialization_failure(res, "wellsfargo")
            }
        }
    }
}

impl ConnectorValidation for Wellsfargo {
    fn validate_mandate_payment(
        &self,
        pm_type: Option<enums::PaymentMethodType>,
        pm_data: PaymentMethodData,
    ) -> CustomResult<(), errors::ConnectorError> {
        let mandate_supported_pmd = std::collections::HashSet::from([
            PaymentMethodDataType::Card,
            PaymentMethodDataType::ApplePay,
            PaymentMethodDataType::GooglePay,
        ]);
        utils::is_mandate_supported(pm_data, pm_type, mandate_supported_pmd, self.id())
    }
}

impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for Wellsfargo
where
    Self: ConnectorIntegration<Flow, Request, Response>,
{
    fn build_headers(
        &self,
        req: &RouterData<Flow, Request, Response>,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        let date = OffsetDateTime::now_utc();
        let wellsfargo_req = self.get_request_body(req, connectors)?;
        let auth = wellsfargo::WellsfargoAuthType::try_from(&req.connector_auth_type)?;
        let merchant_account = auth.merchant_account.clone();
        let base_url = connectors.wellsfargo.base_url.as_str();
        let wellsfargo_host =
            Url::parse(base_url).change_context(errors::ConnectorError::RequestEncodingFailed)?;
        let host = wellsfargo_host
            .host_str()
            .ok_or(errors::ConnectorError::RequestEncodingFailed)?;
        let path: String = self
            .get_url(req, connectors)?
            .chars()
            .skip(base_url.len() - 1)
            .collect();
        let sha256 = self.generate_digest(wellsfargo_req.get_inner_value().expose().as_bytes());
        let http_method = self.get_http_method();
        let signature = self.generate_signature(
            auth,
            host.to_string(),
            path.as_str(),
            &sha256,
            date,
            http_method,
        )?;

        let mut headers = vec![
            (
                headers::CONTENT_TYPE.to_string(),
                self.get_content_type().to_string().into(),
            ),
            (
                headers::ACCEPT.to_string(),
                "application/hal+json;charset=utf-8".to_string().into(),
            ),
            (
                "v-c-merchant-id".to_string(),
                merchant_account.into_masked(),
            ),
            ("Date".to_string(), date.to_string().into()),
            ("Host".to_string(), host.to_string().into()),
            ("Signature".to_string(), signature.into_masked()),
        ];
        if matches!(http_method, Method::Post | Method::Put | Method::Patch) {
            headers.push((
                "Digest".to_string(),
                format!("SHA-256={sha256}").into_masked(),
            ));
        }
        Ok(headers)
    }
}

impl api::Payment for Wellsfargo {}
impl api::PaymentAuthorize for Wellsfargo {}
impl api::PaymentSync for Wellsfargo {}
impl api::PaymentVoid for Wellsfargo {}
impl api::PaymentCapture for Wellsfargo {}
impl api::PaymentIncrementalAuthorization for Wellsfargo {}
impl api::MandateSetup for Wellsfargo {}
impl api::ConnectorAccessToken for Wellsfargo {}
impl api::PaymentToken for Wellsfargo {}
impl api::ConnectorMandateRevoke for Wellsfargo {}

impl ConnectorIntegration<PaymentMethodToken, PaymentMethodTokenizationData, PaymentsResponseData>
    for Wellsfargo
{
    // Not Implemented (R)
}

impl ConnectorIntegration<SetupMandate, SetupMandateRequestData, PaymentsResponseData>
    for Wellsfargo
{
    fn get_headers(
        &self,
        req: &SetupMandateRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }
    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }
    fn get_url(
        &self,
        _req: &SetupMandateRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!("{}pts/v2/payments/", self.base_url(connectors)))
    }
    fn get_request_body(
        &self,
        req: &SetupMandateRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_req = wellsfargo::WellsfargoZeroMandateRequest::try_from(req)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }

    fn build_request(
        &self,
        req: &SetupMandateRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Post)
                .url(&SetupMandateType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(SetupMandateType::get_headers(self, req, connectors)?)
                .set_body(SetupMandateType::get_request_body(self, req, connectors)?)
                .build(),
        ))
    }

    fn handle_response(
        &self,
        data: &SetupMandateRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<SetupMandateRouterData, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoPaymentsResponse = res
            .response
            .parse_struct("WellsfargoSetupMandatesResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }

    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }

    fn get_5xx_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoServerErrorResponse = res
            .response
            .parse_struct("WellsfargoServerErrorResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;

        event_builder.map(|event| event.set_response_body(&response));
        router_env::logger::info!(error_response=?response);

        let attempt_status = match response.reason {
            Some(reason) => match reason {
                transformers::Reason::SystemError => Some(enums::AttemptStatus::Failure),
                transformers::Reason::ServerTimeout | transformers::Reason::ServiceTimeout => None,
            },
            None => None,
        };
        Ok(ErrorResponse {
            status_code: res.status_code,
            reason: response.status.clone(),
            code: response
                .status
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string()),
            message: response
                .message
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_MESSAGE.to_string()),
            attempt_status,
            connector_transaction_id: None,
            network_advice_code: None,
            network_decline_code: None,
            network_error_message: None,
            connector_metadata: None,
        })
    }
}

impl ConnectorIntegration<MandateRevoke, MandateRevokeRequestData, MandateRevokeResponseData>
    for Wellsfargo
{
    fn get_headers(
        &self,
        req: &MandateRevokeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }
    fn get_http_method(&self) -> Method {
        Method::Delete
    }
    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }
    fn get_url(
        &self,
        req: &MandateRevokeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!(
            "{}tms/v1/paymentinstruments/{}",
            self.base_url(connectors),
            utils::RevokeMandateRequestData::get_connector_mandate_id(&req.request)?
        ))
    }
    fn build_request(
        &self,
        req: &MandateRevokeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Delete)
                .url(&MandateRevokeType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(MandateRevokeType::get_headers(self, req, connectors)?)
                .build(),
        ))
    }
    fn handle_response(
        &self,
        data: &MandateRevokeRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<MandateRevokeRouterData, errors::ConnectorError> {
        if matches!(res.status_code, 204) {
            event_builder.map(|i| i.set_response_body(&serde_json::json!({"mandate_status": common_enums::MandateStatus::Revoked.to_string()})));
            Ok(MandateRevokeRouterData {
                response: Ok(MandateRevokeResponseData {
                    mandate_status: common_enums::MandateStatus::Revoked,
                }),
                ..data.clone()
            })
        } else {
            // If http_code != 204 || http_code != 4xx, we dont know any other response scenario yet.
            let response_value: serde_json::Value = serde_json::from_slice(&res.response)
                .change_context(errors::ConnectorError::ResponseHandlingFailed)?;
            let response_string = response_value.to_string();

            event_builder.map(|i| {
                i.set_response_body(
                    &serde_json::json!({"response_string": response_string.clone()}),
                )
            });
            router_env::logger::info!(connector_response=?response_string);

            Ok(MandateRevokeRouterData {
                response: Err(ErrorResponse {
                    code: hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string(),
                    message: response_string.clone(),
                    reason: Some(response_string),
                    status_code: res.status_code,
                    attempt_status: None,
                    connector_transaction_id: None,
                    network_advice_code: None,
                    network_decline_code: None,
                    network_error_message: None,
                    connector_metadata: None,
                }),
                ..data.clone()
            })
        }
    }
    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }
}
impl ConnectorIntegration<AccessTokenAuth, AccessTokenRequestData, AccessToken> for Wellsfargo {
    // Not Implemented (R)
}

impl api::PaymentSession for Wellsfargo {}

impl ConnectorIntegration<Session, PaymentsSessionData, PaymentsResponseData> for Wellsfargo {}

impl ConnectorIntegration<Capture, PaymentsCaptureData, PaymentsResponseData> for Wellsfargo {
    fn get_headers(
        &self,
        req: &PaymentsCaptureRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }

    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }

    fn get_url(
        &self,
        req: &PaymentsCaptureRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        let connector_payment_id = req.request.connector_transaction_id.clone();
        Ok(format!(
            "{}pts/v2/payments/{}/captures",
            self.base_url(connectors),
            connector_payment_id
        ))
    }

    fn get_request_body(
        &self,
        req: &PaymentsCaptureRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = convert_amount(
            self.amount_converter,
            MinorUnit::new(req.request.amount_to_capture),
            req.request.currency,
        )?;

        let connector_router_data = wellsfargo::WellsfargoRouterData::from((amount, req));

        let connector_req =
            wellsfargo::WellsfargoPaymentsCaptureRequest::try_from(&connector_router_data)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }
    fn build_request(
        &self,
        req: &PaymentsCaptureRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Post)
                .url(&PaymentsCaptureType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(PaymentsCaptureType::get_headers(self, req, connectors)?)
                .set_body(PaymentsCaptureType::get_request_body(
                    self, req, connectors,
                )?)
                .build(),
        ))
    }
    fn handle_response(
        &self,
        data: &PaymentsCaptureRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<
        RouterData<Capture, PaymentsCaptureData, PaymentsResponseData>,
        errors::ConnectorError,
    > {
        let response: wellsfargo::WellsfargoPaymentsResponse = res
            .response
            .parse_struct("Wellsfargo PaymentResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }
    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }

    fn get_5xx_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoServerErrorResponse = res
            .response
            .parse_struct("WellsfargoServerErrorResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;

        event_builder.map(|event| event.set_response_body(&response));
        router_env::logger::info!(error_response=?response);

        Ok(ErrorResponse {
            status_code: res.status_code,
            reason: response.status.clone(),
            code: response
                .status
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string()),
            message: response
                .message
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_MESSAGE.to_string()),
            attempt_status: None,
            connector_transaction_id: None,
            network_advice_code: None,
            network_decline_code: None,
            network_error_message: None,
            connector_metadata: None,
        })
    }
}

impl ConnectorIntegration<PSync, PaymentsSyncData, PaymentsResponseData> for Wellsfargo {
    fn get_headers(
        &self,
        req: &PaymentsSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }

    fn get_http_method(&self) -> Method {
        Method::Get
    }

    fn get_url(
        &self,
        req: &PaymentsSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        let connector_payment_id = req
            .request
            .connector_transaction_id
            .get_connector_transaction_id()
            .change_context(errors::ConnectorError::MissingConnectorTransactionID)?;
        Ok(format!(
            "{}tss/v2/transactions/{}",
            self.base_url(connectors),
            connector_payment_id
        ))
    }

    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }

    fn build_request(
        &self,
        req: &PaymentsSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Get)
                .url(&PaymentsSyncType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(PaymentsSyncType::get_headers(self, req, connectors)?)
                .build(),
        ))
    }
    fn handle_response(
        &self,
        data: &PaymentsSyncRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsSyncRouterData, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoTransactionResponse = res
            .response
            .parse_struct("Wellsfargo PaymentSyncResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }
    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }
}

impl ConnectorIntegration<Authorize, PaymentsAuthorizeData, PaymentsResponseData> for Wellsfargo {
    fn get_headers(
        &self,
        req: &PaymentsAuthorizeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }

    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }

    fn get_url(
        &self,
        _req: &PaymentsAuthorizeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!(
            "{}pts/v2/payments/",
            ConnectorCommon::base_url(self, connectors)
        ))
    }

    fn get_request_body(
        &self,
        req: &PaymentsAuthorizeRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = convert_amount(
            self.amount_converter,
            MinorUnit::new(req.request.amount),
            req.request.currency,
        )?;

        let connector_router_data = wellsfargo::WellsfargoRouterData::from((amount, req));
        let connector_req =
            wellsfargo::WellsfargoPaymentsRequest::try_from(&connector_router_data)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }

    fn build_request(
        &self,
        req: &PaymentsAuthorizeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        let request = RequestBuilder::new()
            .method(Method::Post)
            .url(&PaymentsAuthorizeType::get_url(self, req, connectors)?)
            .attach_default_headers()
            .headers(PaymentsAuthorizeType::get_headers(self, req, connectors)?)
            .set_body(self.get_request_body(req, connectors)?)
            .build();

        Ok(Some(request))
    }

    fn handle_response(
        &self,
        data: &PaymentsAuthorizeRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsAuthorizeRouterData, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoPaymentsResponse = res
            .response
            .parse_struct("Wellsfargo PaymentResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }

    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }

    fn get_5xx_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoServerErrorResponse = res
            .response
            .parse_struct("WellsfargoServerErrorResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;

        event_builder.map(|event| event.set_response_body(&response));
        router_env::logger::info!(error_response=?response);

        let attempt_status = match response.reason {
            Some(reason) => match reason {
                transformers::Reason::SystemError => Some(enums::AttemptStatus::Failure),
                transformers::Reason::ServerTimeout | transformers::Reason::ServiceTimeout => None,
            },
            None => None,
        };
        Ok(ErrorResponse {
            status_code: res.status_code,
            reason: response.status.clone(),
            code: response
                .status
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string()),
            message: response
                .message
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_MESSAGE.to_string()),
            attempt_status,
            connector_transaction_id: None,
            network_advice_code: None,
            network_decline_code: None,
            network_error_message: None,
            connector_metadata: None,
        })
    }
}

impl ConnectorIntegration<Void, PaymentsCancelData, PaymentsResponseData> for Wellsfargo {
    fn get_headers(
        &self,
        req: &PaymentsCancelRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }

    fn get_url(
        &self,
        req: &PaymentsCancelRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        let connector_payment_id = req.request.connector_transaction_id.clone();
        Ok(format!(
            "{}pts/v2/payments/{connector_payment_id}/reversals",
            self.base_url(connectors)
        ))
    }

    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }

    fn get_request_body(
        &self,
        req: &PaymentsCancelRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = convert_amount(
            self.amount_converter,
            MinorUnit::new(req.request.amount.ok_or(
                errors::ConnectorError::MissingRequiredField {
                    field_name: "Amount",
                },
            )?),
            req.request
                .currency
                .ok_or(errors::ConnectorError::MissingRequiredField {
                    field_name: "Currency",
                })?,
        )?;

        let connector_router_data = wellsfargo::WellsfargoRouterData::from((amount, req));
        let connector_req = wellsfargo::WellsfargoVoidRequest::try_from(&connector_router_data)?;

        Ok(RequestContent::Json(Box::new(connector_req)))
    }

    fn build_request(
        &self,
        req: &PaymentsCancelRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Post)
                .url(&PaymentsVoidType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(PaymentsVoidType::get_headers(self, req, connectors)?)
                .set_body(self.get_request_body(req, connectors)?)
                .build(),
        ))
    }

    fn handle_response(
        &self,
        data: &PaymentsCancelRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsCancelRouterData, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoPaymentsResponse = res
            .response
            .parse_struct("Wellsfargo PaymentResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }

    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }

    fn get_5xx_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoServerErrorResponse = res
            .response
            .parse_struct("WellsfargoServerErrorResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;

        event_builder.map(|event| event.set_response_body(&response));
        router_env::logger::info!(error_response=?response);

        Ok(ErrorResponse {
            status_code: res.status_code,
            reason: response.status.clone(),
            code: response
                .status
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_CODE.to_string()),
            message: response
                .message
                .unwrap_or(hyperswitch_interfaces::consts::NO_ERROR_MESSAGE.to_string()),
            attempt_status: None,
            connector_transaction_id: None,
            network_advice_code: None,
            network_decline_code: None,
            network_error_message: None,
            connector_metadata: None,
        })
    }
}

impl Refund for Wellsfargo {}
impl RefundExecute for Wellsfargo {}
impl RefundSync for Wellsfargo {}

impl ConnectorIntegration<Execute, RefundsData, RefundsResponseData> for Wellsfargo {
    fn get_headers(
        &self,
        req: &RefundExecuteRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }

    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }

    fn get_url(
        &self,
        req: &RefundExecuteRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        let connector_payment_id = req.request.connector_transaction_id.clone();
        Ok(format!(
            "{}pts/v2/payments/{}/refunds",
            self.base_url(connectors),
            connector_payment_id
        ))
    }

    fn get_request_body(
        &self,
        req: &RefundExecuteRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = convert_amount(
            self.amount_converter,
            MinorUnit::new(req.request.refund_amount),
            req.request.currency,
        )?;

        let connector_router_data = wellsfargo::WellsfargoRouterData::from((amount, req));
        let connector_req = wellsfargo::WellsfargoRefundRequest::try_from(&connector_router_data)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }
    fn build_request(
        &self,
        req: &RefundExecuteRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Post)
                .url(&RefundExecuteType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(RefundExecuteType::get_headers(self, req, connectors)?)
                .set_body(self.get_request_body(req, connectors)?)
                .build(),
        ))
    }

    fn handle_response(
        &self,
        data: &RefundExecuteRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<RefundExecuteRouterData, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoRefundResponse = res
            .response
            .parse_struct("Wellsfargo RefundResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }
    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }
}

impl ConnectorIntegration<RSync, RefundsData, RefundsResponseData> for Wellsfargo {
    fn get_headers(
        &self,
        req: &RefundSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }
    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }
    fn get_http_method(&self) -> Method {
        Method::Get
    }
    fn get_url(
        &self,
        req: &RefundSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        let refund_id = req.request.get_connector_refund_id()?;
        Ok(format!(
            "{}tss/v2/transactions/{}",
            self.base_url(connectors),
            refund_id
        ))
    }
    fn build_request(
        &self,
        req: &RefundSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Get)
                .url(&RefundSyncType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(RefundSyncType::get_headers(self, req, connectors)?)
                .build(),
        ))
    }
    fn handle_response(
        &self,
        data: &RefundSyncRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<RefundSyncRouterData, errors::ConnectorError> {
        let response: wellsfargo::WellsfargoRsyncResponse = res
            .response
            .parse_struct("Wellsfargo RefundSyncResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }
    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }
}

impl
    ConnectorIntegration<
        IncrementalAuthorization,
        PaymentsIncrementalAuthorizationData,
        PaymentsResponseData,
    > for Wellsfargo
{
    fn get_headers(
        &self,
        req: &PaymentsIncrementalAuthorizationRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }

    fn get_http_method(&self) -> Method {
        Method::Patch
    }

    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }

    fn get_url(
        &self,
        req: &PaymentsIncrementalAuthorizationRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        let connector_payment_id = req.request.connector_transaction_id.clone();
        Ok(format!(
            "{}pts/v2/payments/{}",
            self.base_url(connectors),
            connector_payment_id
        ))
    }

    fn get_request_body(
        &self,
        req: &PaymentsIncrementalAuthorizationRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = convert_amount(
            self.amount_converter,
            MinorUnit::new(req.request.additional_amount),
            req.request.currency,
        )?;

        let connector_router_data = wellsfargo::WellsfargoRouterData::from((amount, req));
        let connector_request =
            wellsfargo::WellsfargoPaymentsIncrementalAuthorizationRequest::try_from(
                &connector_router_data,
            )?;
        Ok(RequestContent::Json(Box::new(connector_request)))
    }
    fn build_request(
        &self,
        req: &PaymentsIncrementalAuthorizationRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Patch)
                .url(&IncrementalAuthorizationType::get_url(
                    self, req, connectors,
                )?)
                .attach_default_headers()
                .headers(IncrementalAuthorizationType::get_headers(
                    self, req, connectors,
                )?)
                .set_body(IncrementalAuthorizationType::get_request_body(
                    self, req, connectors,
                )?)
                .build(),
        ))
    }
    fn handle_response(
        &self,
        data: &PaymentsIncrementalAuthorizationRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<
        RouterData<
            IncrementalAuthorization,
            PaymentsIncrementalAuthorizationData,
            PaymentsResponseData,
        >,
        errors::ConnectorError,
    > {
        let response: wellsfargo::WellsfargoPaymentsIncrementalAuthorizationResponse = res
            .response
            .parse_struct("Wellsfargo PaymentResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);
        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
        .change_context(errors::ConnectorError::ResponseHandlingFailed)
    }
    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }
}

#[async_trait::async_trait]
impl webhooks::IncomingWebhook for Wellsfargo {
    fn get_webhook_object_reference_id(
        &self,
        _request: &webhooks::IncomingWebhookRequestDetails<'_>,
    ) -> CustomResult<api_models::webhooks::ObjectReferenceId, errors::ConnectorError> {
        Err(report!(errors::ConnectorError::WebhooksNotImplemented))
    }

    fn get_webhook_event_type(
        &self,
        _request: &webhooks::IncomingWebhookRequestDetails<'_>,
    ) -> CustomResult<api_models::webhooks::IncomingWebhookEvent, errors::ConnectorError> {
        Ok(api_models::webhooks::IncomingWebhookEvent::EventNotSupported)
    }

    fn get_webhook_resource_object(
        &self,
        _request: &webhooks::IncomingWebhookRequestDetails<'_>,
    ) -> CustomResult<Box<dyn masking::ErasedMaskSerialize>, errors::ConnectorError> {
        Err(report!(errors::ConnectorError::WebhooksNotImplemented))
    }
}

static WELLSFARGO_SUPPORTED_PAYMENT_METHODS: LazyLock<SupportedPaymentMethods> =
    LazyLock::new(|| {
        let supported_capture_methods = vec![
            enums::CaptureMethod::Automatic,
            enums::CaptureMethod::Manual,
            enums::CaptureMethod::SequentialAutomatic,
        ];

        let supported_card_network = vec![
            common_enums::CardNetwork::AmericanExpress,
            common_enums::CardNetwork::Discover,
            common_enums::CardNetwork::Mastercard,
            common_enums::CardNetwork::Visa,
        ];

        let mut wellsfargo_supported_payment_methods = SupportedPaymentMethods::new();

        wellsfargo_supported_payment_methods.add(
            enums::PaymentMethod::Card,
            enums::PaymentMethodType::Credit,
            PaymentMethodDetails {
                mandates: enums::FeatureStatus::Supported,
                refunds: enums::FeatureStatus::Supported,
                supported_capture_methods: supported_capture_methods.clone(),
                specific_features: Some(
                    api_models::feature_matrix::PaymentMethodSpecificFeatures::Card({
                        api_models::feature_matrix::CardSpecificFeatures {
                            three_ds: common_enums::FeatureStatus::NotSupported,
                            no_three_ds: common_enums::FeatureStatus::Supported,
                            supported_card_networks: supported_card_network.clone(),
                        }
                    }),
                ),
            },
        );

        wellsfargo_supported_payment_methods.add(
            enums::PaymentMethod::Card,
            enums::PaymentMethodType::Debit,
            PaymentMethodDetails {
                mandates: enums::FeatureStatus::Supported,
                refunds: enums::FeatureStatus::Supported,
                supported_capture_methods: supported_capture_methods.clone(),
                specific_features: Some(
                    api_models::feature_matrix::PaymentMethodSpecificFeatures::Card({
                        api_models::feature_matrix::CardSpecificFeatures {
                            three_ds: common_enums::FeatureStatus::NotSupported,
                            no_three_ds: common_enums::FeatureStatus::Supported,
                            supported_card_networks: supported_card_network.clone(),
                        }
                    }),
                ),
            },
        );

        wellsfargo_supported_payment_methods.add(
            enums::PaymentMethod::Wallet,
            enums::PaymentMethodType::GooglePay,
            PaymentMethodDetails {
                mandates: enums::FeatureStatus::Supported,
                refunds: enums::FeatureStatus::Supported,
                supported_capture_methods: supported_capture_methods.clone(),
                specific_features: None,
            },
        );

        wellsfargo_supported_payment_methods.add(
            enums::PaymentMethod::Wallet,
            enums::PaymentMethodType::ApplePay,
            PaymentMethodDetails {
                mandates: enums::FeatureStatus::Supported,
                refunds: enums::FeatureStatus::Supported,
                supported_capture_methods: supported_capture_methods.clone(),
                specific_features: None,
            },
        );

        wellsfargo_supported_payment_methods.add(
            enums::PaymentMethod::BankDebit,
            enums::PaymentMethodType::Ach,
            PaymentMethodDetails {
                mandates: enums::FeatureStatus::NotSupported,
                refunds: enums::FeatureStatus::Supported,
                supported_capture_methods: supported_capture_methods.clone(),
                specific_features: None,
            },
        );

        wellsfargo_supported_payment_methods
    });

static WELLSFARGO_CONNECTOR_INFO: ConnectorInfo = ConnectorInfo {
    display_name: "Wells Fargo",
    description:
        "Wells Fargo is a major bank offering retail, commercial, and wealth management services",
    connector_type: enums::HyperswitchConnectorCategory::BankAcquirer,
    integration_status: enums::ConnectorIntegrationStatus::Beta,
};

static WELLSFARGO_SUPPORTED_WEBHOOK_FLOWS: [enums::EventClass; 0] = [];

impl ConnectorSpecifications for Wellsfargo {
    fn get_connector_about(&self) -> Option<&'static ConnectorInfo> {
        Some(&WELLSFARGO_CONNECTOR_INFO)
    }

    fn get_supported_payment_methods(&self) -> Option<&'static SupportedPaymentMethods> {
        Some(&*WELLSFARGO_SUPPORTED_PAYMENT_METHODS)
    }

    fn get_supported_webhook_flows(&self) -> Option<&'static [enums::EventClass]> {
        Some(&WELLSFARGO_SUPPORTED_WEBHOOK_FLOWS)
    }
}


// File: crates/hyperswitch_connectors/src/connectors/zsl.rs

pub mod transformers;

use std::fmt::Debug;

use api_models::webhooks::{IncomingWebhookEvent, ObjectReferenceId};
use common_enums::enums;
use common_utils::{
    errors::CustomResult,
    ext_traits::{BytesExt, ValueExt},
    request::{Method, Request, RequestBuilder, RequestContent},
};
use error_stack::ResultExt;
use hyperswitch_domain_models::{
    api::ApplicationResponse,
    router_data::{AccessToken, ConnectorAuthType, ErrorResponse, RouterData},
    router_flow_types::{
        access_token_auth::AccessTokenAuth,
        payments::{Authorize, Capture, PSync, PaymentMethodToken, Session, SetupMandate, Void},
        refunds::{Execute, RSync},
    },
    router_request_types::{
        AccessTokenRequestData, PaymentMethodTokenizationData, PaymentsAuthorizeData,
        PaymentsCancelData, PaymentsCaptureData, PaymentsSessionData, PaymentsSyncData,
        RefundsData, SetupMandateRequestData,
    },
    router_response_types::{
        ConnectorInfo, PaymentMethodDetails, PaymentsResponseData, RefundsResponseData,
        SupportedPaymentMethods, SupportedPaymentMethodsExt,
    },
    types::{
        PaymentsAuthorizeRouterData, PaymentsCancelRouterData, PaymentsCaptureRouterData,
        PaymentsSessionRouterData, PaymentsSyncRouterData, RefundSyncRouterData, RefundsRouterData,
        TokenizationRouterData,
    },
};
use hyperswitch_interfaces::{
    api::{
        self, ConnectorCommon, ConnectorCommonExt, ConnectorIntegration, ConnectorSpecifications,
        ConnectorValidation,
    },
    configs::Connectors,
    errors,
    events::connector_api_logs::ConnectorEvent,
    types::{self, Response},
    webhooks::{IncomingWebhook, IncomingWebhookFlowError, IncomingWebhookRequestDetails},
};
use lazy_static::lazy_static;
use masking::{ExposeInterface, Secret};
use transformers::{self as zsl, get_status};

use crate::{
    constants::headers,
    types::{RefreshTokenRouterData, ResponseRouterData},
};

#[derive(Debug, Clone)]
pub struct Zsl;

impl api::Payment for Zsl {}
impl api::PaymentSession for Zsl {}
impl api::ConnectorAccessToken for Zsl {}
impl api::MandateSetup for Zsl {}
impl api::PaymentAuthorize for Zsl {}
impl api::PaymentSync for Zsl {}
impl api::PaymentCapture for Zsl {}
impl api::PaymentVoid for Zsl {}
impl api::Refund for Zsl {}
impl api::RefundExecute for Zsl {}
impl api::RefundSync for Zsl {}
impl api::PaymentToken for Zsl {}

impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for Zsl
where
    Self: ConnectorIntegration<Flow, Request, Response>,
{
    fn build_headers(
        &self,
        _req: &RouterData<Flow, Request, Response>,
        _connectors: &Connectors,
    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
        let header = vec![(
            headers::CONTENT_TYPE.to_string(),
            self.get_content_type().to_string().into(),
        )];
        Ok(header)
    }
}

impl ConnectorCommon for Zsl {
    fn id(&self) -> &'static str {
        "zsl"
    }

    fn get_currency_unit(&self) -> api::CurrencyUnit {
        api::CurrencyUnit::Minor
    }

    fn common_get_content_type(&self) -> &'static str {
        "application/x-www-form-urlencoded"
    }

    fn base_url<'a>(&self, connectors: &'a Connectors) -> &'a str {
        connectors.zsl.base_url.as_ref()
    }

    fn build_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        let response = serde_urlencoded::from_bytes::<zsl::ZslErrorResponse>(&res.response)
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;

        event_builder.map(|i| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);

        let error_reason = zsl::ZslResponseStatus::try_from(response.status.clone())?.to_string();

        Ok(ErrorResponse {
            status_code: res.status_code,
            code: response.status,
            message: error_reason.clone(),
            reason: Some(error_reason),
            attempt_status: Some(common_enums::AttemptStatus::Failure),
            connector_transaction_id: None,
            network_advice_code: None,
            network_decline_code: None,
            network_error_message: None,
            connector_metadata: None,
        })
    }
}

impl ConnectorValidation for Zsl {
    fn is_webhook_source_verification_mandatory(&self) -> bool {
        true
    }
}

impl ConnectorIntegration<Authorize, PaymentsAuthorizeData, PaymentsResponseData> for Zsl {
    fn get_headers(
        &self,
        req: &PaymentsAuthorizeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
        self.build_headers(req, connectors)
    }

    fn get_content_type(&self) -> &'static str {
        self.common_get_content_type()
    }

    fn get_url(
        &self,
        _req: &PaymentsAuthorizeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!("{}ecp", self.base_url(connectors)))
    }

    fn get_request_body(
        &self,
        req: &PaymentsAuthorizeRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_router_data = zsl::ZslRouterData::try_from((
            &self.get_currency_unit(),
            req.request.currency,
            req.request.amount,
            req,
        ))?;
        let connector_req = zsl::ZslPaymentsRequest::try_from(&connector_router_data)?;
        Ok(RequestContent::FormUrlEncoded(Box::new(connector_req)))
    }

    fn build_request(
        &self,
        req: &PaymentsAuthorizeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Post)
                .url(&types::PaymentsAuthorizeType::get_url(
                    self, req, connectors,
                )?)
                .attach_default_headers()
                .headers(types::PaymentsAuthorizeType::get_headers(
                    self, req, connectors,
                )?)
                .set_body(types::PaymentsAuthorizeType::get_request_body(
                    self, req, connectors,
                )?)
                .build(),
        ))
    }

    fn handle_response(
        &self,
        data: &PaymentsAuthorizeRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsAuthorizeRouterData, errors::ConnectorError> {
        let response = serde_urlencoded::from_bytes::<zsl::ZslPaymentsResponse>(&res.response)
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;

        event_builder.map(|i: &mut ConnectorEvent| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);

        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }

    fn get_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }

    fn get_5xx_error_response(
        &self,
        res: Response,
        event_builder: Option<&mut ConnectorEvent>,
    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
        self.build_error_response(res, event_builder)
    }
}

impl ConnectorIntegration<PSync, PaymentsSyncData, PaymentsResponseData> for Zsl {
    fn handle_response(
        &self,
        data: &PaymentsSyncRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsSyncRouterData, errors::ConnectorError> {
        let response: zsl::ZslWebhookResponse = res
            .response
            .parse_struct("ZslWebhookResponse")
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;

        event_builder.map(|i: &mut ConnectorEvent| i.set_response_body(&response));
        router_env::logger::info!(connector_response=?response);

        RouterData::try_from(ResponseRouterData {
            response,
            data: data.clone(),
            http_code: res.status_code,
        })
    }
}

impl ConnectorIntegration<Session, PaymentsSessionData, PaymentsResponseData> for Zsl {
    fn build_request(
        &self,
        _req: &PaymentsSessionRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "Session flow".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

impl ConnectorIntegration<PaymentMethodToken, PaymentMethodTokenizationData, PaymentsResponseData>
    for Zsl
{
    fn build_request(
        &self,
        _req: &TokenizationRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "PaymentMethod Tokenization flow ".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

impl ConnectorIntegration<AccessTokenAuth, AccessTokenRequestData, AccessToken> for Zsl {
    fn build_request(
        &self,
        _req: &RefreshTokenRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "AccessTokenAuth flow".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

impl ConnectorIntegration<SetupMandate, SetupMandateRequestData, PaymentsResponseData> for Zsl {
    fn build_request(
        &self,
        _req: &RouterData<SetupMandate, SetupMandateRequestData, PaymentsResponseData>,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "SetupMandate flow".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

impl ConnectorIntegration<Capture, PaymentsCaptureData, PaymentsResponseData> for Zsl {
    fn build_request(
        &self,
        _req: &PaymentsCaptureRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "Capture flow".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

impl ConnectorIntegration<Void, PaymentsCancelData, PaymentsResponseData> for Zsl {
    fn build_request(
        &self,
        _req: &PaymentsCancelRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "Void flow ".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

impl ConnectorIntegration<Execute, RefundsData, RefundsResponseData> for Zsl {
    fn build_request(
        &self,
        _req: &RefundsRouterData<Execute>,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "Refund flow".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

impl ConnectorIntegration<RSync, RefundsData, RefundsResponseData> for Zsl {
    fn build_request(
        &self,
        _req: &RefundSyncRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(errors::ConnectorError::NotSupported {
            message: "Rsync flow ".to_owned(),
            connector: "Zsl",
        }
        .into())
    }
}

#[async_trait::async_trait]
impl IncomingWebhook for Zsl {
    fn get_webhook_object_reference_id(
        &self,
        request: &IncomingWebhookRequestDetails<'_>,
    ) -> CustomResult<ObjectReferenceId, errors::ConnectorError> {
        let notif = get_webhook_object_from_body(request.body)
            .change_context(errors::ConnectorError::WebhookReferenceIdNotFound)?;
        Ok(ObjectReferenceId::PaymentId(
            api_models::payments::PaymentIdType::PaymentAttemptId(notif.mer_ref),
        ))
    }

    fn get_webhook_event_type(
        &self,
        request: &IncomingWebhookRequestDetails<'_>,
    ) -> CustomResult<IncomingWebhookEvent, errors::ConnectorError> {
        let notif = get_webhook_object_from_body(request.body)
            .change_context(errors::ConnectorError::WebhookEventTypeNotFound)?;

        Ok(get_status(notif.status))
    }

    fn get_webhook_resource_object(
        &self,
        request: &IncomingWebhookRequestDetails<'_>,
    ) -> CustomResult<Box<dyn masking::ErasedMaskSerialize>, errors::ConnectorError> {
        let response = get_webhook_object_from_body(request.body)
            .change_context(errors::ConnectorError::WebhookEventTypeNotFound)?;
        Ok(Box::new(response))
    }

    async fn verify_webhook_source(
        &self,
        request: &IncomingWebhookRequestDetails<'_>,
        _merchant_id: &common_utils::id_type::MerchantId,
        _connector_webhook_details: Option<common_utils::pii::SecretSerdeValue>,
        connector_account_details: common_utils::crypto::Encryptable<Secret<serde_json::Value>>,
        _connector_label: &str,
    ) -> CustomResult<bool, errors::ConnectorError> {
        let connector_account_details = connector_account_details
            .parse_value::<ConnectorAuthType>("ConnectorAuthType")
            .change_context_lazy(|| errors::ConnectorError::WebhookSourceVerificationFailed)?;
        let auth_type = zsl::ZslAuthType::try_from(&connector_account_details)?;
        let key = auth_type.api_key.expose();
        let mer_id = auth_type.merchant_id.expose();
        let webhook_response = get_webhook_object_from_body(request.body)?;
        let signature = zsl::calculate_signature(
            webhook_response.enctype,
            zsl::ZslSignatureType::WebhookSignature {
                status: webhook_response.status,
                txn_id: webhook_response.txn_id,
                txn_date: webhook_response.txn_date,
                paid_ccy: webhook_response.paid_ccy.to_string(),
                paid_amt: webhook_response.paid_amt,
                mer_ref: webhook_response.mer_ref,
                mer_id,
                key,
            },
        )?;

        Ok(signature.eq(&webhook_response.signature))
    }

    fn get_webhook_api_response(
        &self,
        _request: &IncomingWebhookRequestDetails<'_>,
        _error_kind: Option<IncomingWebhookFlowError>,
    ) -> CustomResult<ApplicationResponse<serde_json::Value>, errors::ConnectorError> {
        Ok(ApplicationResponse::TextPlain("CALLBACK-OK".to_string()))
    }
}

fn get_webhook_object_from_body(
    body: &[u8],
) -> CustomResult<zsl::ZslWebhookResponse, errors::ConnectorError> {
    let response: zsl::ZslWebhookResponse =
        serde_urlencoded::from_bytes::<zsl::ZslWebhookResponse>(body)
            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
    Ok(response)
}

lazy_static! {
    static ref ZSL_SUPPORTED_PAYMENT_METHODS: SupportedPaymentMethods = {
        let supported_capture_methods = vec![enums::CaptureMethod::Automatic];

        let mut zsl_supported_payment_methods = SupportedPaymentMethods::new();
        zsl_supported_payment_methods.add(
            enums::PaymentMethod::BankTransfer,
            enums::PaymentMethodType::LocalBankTransfer,
            PaymentMethodDetails{
                mandates: common_enums::FeatureStatus::NotSupported,
                refunds: common_enums::FeatureStatus::NotSupported,
                supported_capture_methods,
                specific_features: None,
            },
        );

        zsl_supported_payment_methods
    };

    static ref ZSL_CONNECTOR_INFO: ConnectorInfo = ConnectorInfo {
        display_name: "ZSL",
        description:
            "Zsl is a payment gateway operating in China, specializing in facilitating local bank transfers",
        connector_type: enums::HyperswitchConnectorCategory::PaymentGateway,
        integration_status: enums::ConnectorIntegrationStatus::Live,
    };

    static ref ZSL_SUPPORTED_WEBHOOK_FLOWS: Vec<enums::EventClass> = Vec::new();

}

impl ConnectorSpecifications for Zsl {
    fn get_connector_about(&self) -> Option<&'static ConnectorInfo> {
        Some(&*ZSL_CONNECTOR_INFO)
    }

    fn get_supported_payment_methods(&self) -> Option<&'static SupportedPaymentMethods> {
        Some(&*ZSL_SUPPORTED_PAYMENT_METHODS)
    }

    fn get_supported_webhook_flows(&self) -> Option<&'static [enums::EventClass]> {
        Some(&*ZSL_SUPPORTED_WEBHOOK_FLOWS)
    }
}