pub mod transformers;
use std::sync::LazyLock;

use api_models::webhooks::IncomingWebhookEvent;
use common_enums::enums;
use common_utils::{
    errors::CustomResult,
    ext_traits::BytesExt,
    request::{Method, Request, RequestBuilder, RequestContent},
    types::{AmountConvertor, FloatMajorUnit, FloatMajorUnitForConnector},
};
use error_stack::{report, ResultExt};
use hyperswitch_domain_models::{
    errors::api_error_response::ApiErrorResponse,
    payments::payment_attempt::PaymentAttempt,
    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,
        PaymentsSyncRouterData, RefundSyncRouterData, RefundsRouterData, SetupMandateRouterData,
    },
};
use hyperswitch_interfaces::{
    api::{
        self, ConnectorCommon, ConnectorCommonExt, ConnectorIntegration, ConnectorSpecifications,
        ConnectorTransactionId, ConnectorValidation,
    },
    configs::Connectors,
    consts::NO_ERROR_CODE,
    errors,
    events::connector_api_logs::ConnectorEvent,
    types::{self, Response},
    webhooks::{IncomingWebhook, IncomingWebhookRequestDetails, WebhookContext},
};
#[cfg(feature = "v2")]
use hyperswitch_masking::PeekInterface;
use hyperswitch_masking::{ExposeInterface, Mask};
use transformers as helcim;

use crate::{
    constants::headers,
    types::ResponseRouterData,
    utils::{convert_amount, to_connector_meta, PaymentsAuthorizeRequestData},
};

#[derive(Clone)]
pub struct Helcim {
    amount_convertor: &'static (dyn AmountConvertor<Output = FloatMajorUnit> + Sync),
}

impl Helcim {
    pub fn new() -> &'static Self {
        &Self {
            amount_convertor: &FloatMajorUnitForConnector,
        }
    }
}

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

impl Helcim {
    pub fn connector_transaction_id(
        &self,
        connector_meta: Option<&serde_json::Value>,
    ) -> CustomResult<Option<String>, errors::ConnectorError> {
        let meta: helcim::HelcimMetaData = to_connector_meta(connector_meta.cloned())?;
        Ok(Some(meta.preauth_transaction_id.to_string()))
    }
}

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

impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for Helcim
where
    Self: ConnectorIntegration<Flow, Request, Response>,
{
    fn build_headers(
        &self,
        req: &RouterData<Flow, Request, Response>,
        _connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_masking::Maskable<String>)>, errors::ConnectorError>
    {
        let mut header = vec![(
            headers::CONTENT_TYPE.to_string(),
            self.get_content_type().to_string().into(),
        )];
        let mut api_key = self.get_auth_header(&req.connector_auth_type)?;

        //Helcim requires an Idempotency Key of length 25. We prefix every ID by "HS_".
        const ID_LENGTH: usize = 22;
        let mut idempotency_key = vec![(
            headers::IDEMPOTENCY_KEY.to_string(),
            common_utils::generate_id(ID_LENGTH, "HS").into_masked(),
        )];

        header.append(&mut api_key);
        header.append(&mut idempotency_key);
        Ok(header)
    }
}

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

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

    fn common_get_content_type(&self) -> &'static str {
        "application/json"
    }

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

    fn get_auth_header(
        &self,
        auth_type: &ConnectorAuthType,
    ) -> CustomResult<Vec<(String, hyperswitch_masking::Maskable<String>)>, errors::ConnectorError>
    {
        let auth = helcim::HelcimAuthType::try_from(auth_type)
            .change_context(errors::ConnectorError::FailedToObtainAuthType)?;
        Ok(vec![(
            headers::API_TOKEN.to_string(),
            auth.api_key.expose().into_masked(),
        )])
    }

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

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

        let error_string = match response {
            transformers::HelcimErrorResponse::Payment(response) => match response.errors {
                transformers::HelcimErrorTypes::StringType(error) => error,
                transformers::HelcimErrorTypes::JsonType(error) => error.to_string(),
            },
            transformers::HelcimErrorResponse::General(error_string) => error_string,
        };

        Ok(ErrorResponse {
            status_code: res.status_code,
            code: NO_ERROR_CODE.to_owned(),
            message: error_string.clone(),
            reason: Some(error_string),
            attempt_status: None,
            connector_transaction_id: None,
            connector_response_reference_id: None,
            network_advice_code: None,
            network_decline_code: None,
            network_error_message: None,
            connector_metadata: None,
        })
    }
}

impl ConnectorValidation for Helcim {
    fn validate_connector_against_payment_request(
        &self,
        capture_method: Option<enums::CaptureMethod>,
        _payment_method: enums::PaymentMethod,
        _pmt: Option<enums::PaymentMethodType>,
    ) -> CustomResult<(), errors::ConnectorError> {
        let capture_method = capture_method.unwrap_or_default();
        match capture_method {
            enums::CaptureMethod::Automatic
            | enums::CaptureMethod::Manual
            | enums::CaptureMethod::SequentialAutomatic => Ok(()),
            enums::CaptureMethod::ManualMultiple | enums::CaptureMethod::Scheduled => Err(
                crate::utils::construct_not_supported_error_report(capture_method, self.id()),
            ),
        }
    }
}

impl ConnectorIntegration<Session, PaymentsSessionData, PaymentsResponseData> for Helcim {
    //TODO: implement sessions flow
}

impl ConnectorIntegration<AccessTokenAuth, AccessTokenRequestData, AccessToken> for Helcim {}

impl ConnectorIntegration<SetupMandate, SetupMandateRequestData, PaymentsResponseData> for Helcim {
    fn get_headers(
        &self,
        req: &SetupMandateRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_masking::Maskable<String>)>, errors::ConnectorError>
    {
        self.build_headers(req, connectors)
    }

    fn get_url(
        &self,
        _req: &SetupMandateRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!("{}v2/payment/verify", self.base_url(connectors)))
    }
    fn get_request_body(
        &self,
        req: &SetupMandateRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_req = helcim::HelcimVerifyRequest::try_from(req)?;

        Ok(RequestContent::Json(Box::new(connector_req)))
    }
    fn build_request(
        &self,
        _req: &SetupMandateRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(
            errors::ConnectorError::NotImplemented("Setup Mandate flow for Helcim".to_string())
                .into(),
        )

        // Ok(Some(
        //     RequestBuilder::new()
        //         .method(Method::Post)
        //         .url(&types::SetupMandateType::get_url(self, req, connectors)?)
        //         .attach_default_headers()
        //         .headers(types::SetupMandateType::get_headers(self, req, connectors)?)
        //         .set_body(types::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: helcim::HelcimPaymentsResponse = res
            .response
            .parse_struct("Helcim PaymentsAuthorizeResponse")
            .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 Helcim {
    fn get_headers(
        &self,
        req: &PaymentsAuthorizeRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_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> {
        if req.request.is_auto_capture()? {
            return Ok(format!("{}v2/payment/purchase", self.base_url(connectors)));
        }
        Ok(format!("{}v2/payment/preauth", self.base_url(connectors)))
    }

    fn get_request_body(
        &self,
        req: &PaymentsAuthorizeRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_router_data = convert_amount(
            self.amount_convertor,
            req.request.minor_amount,
            req.request.currency,
        )?;
        let router_obj = helcim::HelcimRouterData::try_from((connector_router_data, req))?;
        let connector_req = helcim::HelcimPaymentsRequest::try_from(&router_obj)?;
        Ok(RequestContent::Json(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: helcim::HelcimPaymentsResponse = res
            .response
            .parse_struct("Helcim PaymentsAuthorizeResponse")
            .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<PSync, PaymentsSyncData, PaymentsResponseData> for Helcim {
    fn get_headers(
        &self,
        req: &PaymentsSyncRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_masking::Maskable<String>)>, errors::ConnectorError>
    {
        let mut header = vec![(
            headers::CONTENT_TYPE.to_string(),
            types::PaymentsSyncType::get_content_type(self)
                .to_string()
                .into(),
        )];
        let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
        header.append(&mut api_key);
        Ok(header)
    }

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

    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!(
            "{}v2/card-transactions/{connector_payment_id}",
            self.base_url(connectors)
        ))
    }

    fn build_request(
        &self,
        req: &PaymentsSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Get)
                .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(types::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: helcim::HelcimPaymentsResponse = res
            .response
            .parse_struct("helcim PaymentsSyncResponse")
            .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_multiple_capture_sync_method(
    //     &self,
    // ) -> CustomResult<services::CaptureSyncMethod, errors::ConnectorError> {
    //     Ok(services::CaptureSyncMethod::Individual)
    // }
}

impl ConnectorIntegration<Capture, PaymentsCaptureData, PaymentsResponseData> for Helcim {
    fn get_headers(
        &self,
        req: &PaymentsCaptureRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_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: &PaymentsCaptureRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!("{}v2/payment/capture", self.base_url(connectors)))
    }

    fn get_request_body(
        &self,
        req: &PaymentsCaptureRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_router_data = convert_amount(
            self.amount_convertor,
            req.request.minor_amount_to_capture,
            req.request.currency,
        )?;
        let router_obj = helcim::HelcimRouterData::try_from((connector_router_data, req))?;
        let connector_req = helcim::HelcimCaptureRequest::try_from(&router_obj)?;
        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(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(types::PaymentsCaptureType::get_headers(
                    self, req, connectors,
                )?)
                .set_body(types::PaymentsCaptureType::get_request_body(
                    self, req, connectors,
                )?)
                .build(),
        ))
    }

    fn handle_response(
        &self,
        data: &PaymentsCaptureRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsCaptureRouterData, errors::ConnectorError> {
        let response: helcim::HelcimPaymentsResponse = res
            .response
            .parse_struct("Helcim PaymentsCaptureResponse")
            .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<Void, PaymentsCancelData, PaymentsResponseData> for Helcim {
    fn get_headers(
        &self,
        req: &PaymentsCancelRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_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: &PaymentsCancelRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!("{}v2/payment/reverse", self.base_url(connectors)))
    }

    fn get_request_body(
        &self,
        req: &PaymentsCancelRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_req = helcim::HelcimVoidRequest::try_from(req)?;
        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(&types::PaymentsVoidType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                .set_body(types::PaymentsVoidType::get_request_body(
                    self, req, connectors,
                )?)
                .build(),
        ))
    }

    fn handle_response(
        &self,
        data: &PaymentsCancelRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsCancelRouterData, errors::ConnectorError> {
        let response: helcim::HelcimPaymentsResponse = res
            .response
            .parse_struct("HelcimPaymentsResponse")
            .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)
    }
}

impl ConnectorIntegration<Execute, RefundsData, RefundsResponseData> for Helcim {
    fn get_headers(
        &self,
        req: &RefundsRouterData<Execute>,
        connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_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: &RefundsRouterData<Execute>,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!("{}v2/payment/refund", self.base_url(connectors)))
    }

    fn get_request_body(
        &self,
        req: &RefundsRouterData<Execute>,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_router_data = convert_amount(
            self.amount_convertor,
            req.request.minor_refund_amount,
            req.request.currency,
        )?;
        let router_obj = helcim::HelcimRouterData::try_from((connector_router_data, req))?;
        let connector_req = helcim::HelcimRefundRequest::try_from(&router_obj)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }

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

    fn handle_response(
        &self,
        data: &RefundsRouterData<Execute>,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<RefundsRouterData<Execute>, errors::ConnectorError> {
        let response: helcim::RefundResponse =
            res.response
                .parse_struct("helcim 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 Helcim {
    fn get_headers(
        &self,
        req: &RefundSyncRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<Vec<(String, hyperswitch_masking::Maskable<String>)>, errors::ConnectorError>
    {
        let mut header = vec![(
            headers::CONTENT_TYPE.to_string(),
            types::RefundSyncType::get_content_type(self)
                .to_string()
                .into(),
        )];
        let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
        header.append(&mut api_key);
        Ok(header)
    }

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

    fn get_url(
        &self,
        req: &RefundSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        let connector_refund_id = req
            .request
            .connector_refund_id
            .clone()
            .ok_or(errors::ConnectorError::MissingConnectorRefundID)?;

        Ok(format!(
            "{}v2/card-transactions/{connector_refund_id}",
            self.base_url(connectors)
        ))
    }

    fn build_request(
        &self,
        req: &RefundSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Get)
                .url(&types::RefundSyncType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(types::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: helcim::RefundResponse = res
            .response
            .parse_struct("helcim 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)
    }
}

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

    fn get_webhook_event_type(
        &self,
        _request: &IncomingWebhookRequestDetails<'_>,
        _context: Option<&WebhookContext>,
    ) -> CustomResult<IncomingWebhookEvent, errors::ConnectorError> {
        Err(report!(errors::ConnectorError::WebhooksNotImplemented))
    }

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

static HELCIM_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::Visa,
        common_enums::CardNetwork::Mastercard,
        common_enums::CardNetwork::Interac,
        common_enums::CardNetwork::AmericanExpress,
        common_enums::CardNetwork::JCB,
        common_enums::CardNetwork::DinersClub,
        common_enums::CardNetwork::Discover,
        common_enums::CardNetwork::CartesBancaires,
        common_enums::CardNetwork::UnionPay,
    ];

    let mut helcim_supported_payment_methods = SupportedPaymentMethods::new();

    helcim_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(),
                    }
                }),
            ),
        },
    );

    helcim_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(),
                    }
                }),
            ),
        },
    );

    helcim_supported_payment_methods
});

static HELCIM_CONNECTOR_INFO: ConnectorInfo = ConnectorInfo {
        display_name: "Helcim",
        description:
            "Helcim is a payment processing company that offers transparent, affordable merchant services for businesses of all sizes",
        connector_type: enums::HyperswitchConnectorCategory::PaymentGateway,
        integration_status: enums::ConnectorIntegrationStatus::Sandbox,
    };

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

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

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

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

impl ConnectorTransactionId for Helcim {
    #[cfg(feature = "v1")]
    fn connector_transaction_id(
        &self,
        payment_attempt: &PaymentAttempt,
    ) -> Result<Option<String>, ApiErrorResponse> {
        if payment_attempt.get_connector_payment_id().is_none() {
            let metadata =
                Self::connector_transaction_id(self, payment_attempt.connector_metadata.as_ref());
            metadata.map_err(|_| ApiErrorResponse::ResourceIdNotFound)
        } else {
            Ok(payment_attempt
                .get_connector_payment_id()
                .map(ToString::to_string))
        }
    }

    #[cfg(feature = "v2")]
    fn connector_transaction_id(
        &self,
        payment_attempt: &PaymentAttempt,
    ) -> Result<Option<String>, ApiErrorResponse> {
        use hyperswitch_domain_models::errors::api_error_response::ApiErrorResponse;

        if payment_attempt.get_connector_payment_id().is_none() {
            let metadata = Self::connector_transaction_id(
                self,
                payment_attempt
                    .connector_metadata
                    .as_ref()
                    .map(|connector_metadata| connector_metadata.peek()),
            );
            metadata.map_err(|_| ApiErrorResponse::ResourceIdNotFound)
        } else {
            Ok(payment_attempt
                .get_connector_payment_id()
                .map(ToString::to_string))
        }
    }
}
