pub mod transformers;

use std::sync::LazyLock;

use common_enums::enums;
use common_utils::{
    errors::CustomResult,
    ext_traits::BytesExt,
    request::{Method, Request, RequestBuilder, RequestContent},
    types::{AmountConvertor, StringMinorUnit, StringMinorUnitForConnector},
};
use error_stack::{report, ResultExt};
use hyperswitch_domain_models::{
    router_data::{AccessToken, 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,
    },
};
use hyperswitch_interfaces::{
    api::{
        self, ConnectorCommon, ConnectorCommonExt, ConnectorIntegration, ConnectorSpecifications,
        ConnectorValidation,
    },
    configs::Connectors,
    errors,
    events::connector_api_logs::ConnectorEvent,
    types::{
        PaymentsAuthorizeType, PaymentsCaptureType, PaymentsSyncType, PaymentsVoidType,
        RefundExecuteType, RefundSyncType, Response,
    },
    webhooks,
};
use transformers as tsys;

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

impl Tsys {
    pub fn new() -> &'static Self {
        &Self {
            amount_converter: &StringMinorUnitForConnector,
        }
    }
}
impl api::Payment for Tsys {}
impl api::PaymentSession for Tsys {}
impl api::ConnectorAccessToken for Tsys {}
impl api::MandateSetup for Tsys {}
impl api::PaymentAuthorize for Tsys {}
impl api::PaymentSync for Tsys {}
impl api::PaymentCapture for Tsys {}
impl api::PaymentVoid for Tsys {}
impl api::Refund for Tsys {}
impl api::RefundExecute for Tsys {}
impl api::RefundSync for Tsys {}
impl api::PaymentToken for Tsys {}

impl ConnectorIntegration<PaymentMethodToken, PaymentMethodTokenizationData, PaymentsResponseData>
    for Tsys
{
}

impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for Tsys
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 header = vec![(
            headers::CONTENT_TYPE.to_string(),
            Self::get_content_type(self).to_string().into(),
        )];
        Ok(header)
    }
}

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

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

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

impl ConnectorValidation for Tsys {}

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

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

impl ConnectorIntegration<SetupMandate, SetupMandateRequestData, PaymentsResponseData> for Tsys {
    fn build_request(
        &self,
        _req: &RouterData<SetupMandate, SetupMandateRequestData, PaymentsResponseData>,
        _connectors: &Connectors,
    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
        Err(
            errors::ConnectorError::NotImplemented("Setup Mandate flow for Tsys".to_string())
                .into(),
        )
    }
}

impl ConnectorIntegration<Authorize, PaymentsAuthorizeData, PaymentsResponseData> for Tsys {
    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> {
        Ok(format!(
            "{}servlets/transnox_api_server",
            self.base_url(connectors)
        ))
    }

    fn get_request_body(
        &self,
        req: &PaymentsAuthorizeRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = utils::convert_amount(
            self.amount_converter,
            req.request.minor_amount,
            req.request.currency,
        )?;
        let connector_router_data = tsys::TsysRouterData::from((amount, req));
        let connector_req: transformers::TsysPaymentsRequest =
            tsys::TsysPaymentsRequest::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> {
        Ok(Some(
            RequestBuilder::new()
                .method(Method::Post)
                .url(&PaymentsAuthorizeType::get_url(self, req, connectors)?)
                .attach_default_headers()
                .headers(PaymentsAuthorizeType::get_headers(self, req, connectors)?)
                .set_body(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: tsys::TsysPaymentsResponse = res
            .response
            .parse_struct("Tsys 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 Tsys {
    fn get_headers(
        &self,
        req: &PaymentsSyncRouterData,
        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: &PaymentsSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!(
            "{}servlets/transnox_api_server",
            self.base_url(connectors)
        ))
    }

    fn get_request_body(
        &self,
        req: &PaymentsSyncRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_req = tsys::TsysSyncRequest::try_from(req)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }

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

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

impl ConnectorIntegration<Capture, PaymentsCaptureData, PaymentsResponseData> for Tsys {
    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!(
            "{}servlets/transnox_api_server",
            self.base_url(connectors)
        ))
    }

    fn get_request_body(
        &self,
        req: &PaymentsCaptureRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = utils::convert_amount(
            self.amount_converter,
            req.request.minor_amount_to_capture,
            req.request.currency,
        )?;
        let connector_router_data = tsys::TsysRouterData::from((amount, req));
        let connector_req = tsys::TsysPaymentsCaptureRequest::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<PaymentsCaptureRouterData, errors::ConnectorError> {
        let response: tsys::TsysPaymentsResponse = res
            .response
            .parse_struct("Tsys 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 Tsys {
    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!(
            "{}servlets/transnox_api_server",
            self.base_url(connectors),
        ))
    }
    fn get_request_body(
        &self,
        req: &PaymentsCancelRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_req = tsys::TsysPaymentsCancelRequest::try_from(req)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }

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

        Ok(Some(request))
    }

    fn handle_response(
        &self,
        data: &PaymentsCancelRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<PaymentsCancelRouterData, errors::ConnectorError> {
        let response: tsys::TsysPaymentsResponse = res
            .response
            .parse_struct("PaymentCancelResponse")
            .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<Execute, RefundsData, RefundsResponseData> for Tsys {
    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!(
            "{}servlets/transnox_api_server",
            self.base_url(connectors)
        ))
    }

    fn get_request_body(
        &self,
        req: &RefundsRouterData<Execute>,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let amount = utils::convert_amount(
            self.amount_converter,
            req.request.minor_refund_amount,
            req.request.currency,
        )?;
        let connector_router_data = tsys::TsysRouterData::from((amount, req));

        let connector_req = tsys::TsysRefundRequest::try_from(&connector_router_data)?;
        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(&RefundExecuteType::get_url(self, req, connectors)?)
            .attach_default_headers()
            .headers(RefundExecuteType::get_headers(self, req, connectors)?)
            .set_body(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: tsys::RefundResponse = res
            .response
            .parse_struct("tsys 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 Tsys {
    fn get_headers(
        &self,
        req: &RefundSyncRouterData,
        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: &RefundSyncRouterData,
        connectors: &Connectors,
    ) -> CustomResult<String, errors::ConnectorError> {
        Ok(format!(
            "{}servlets/transnox_api_server",
            self.base_url(connectors),
        ))
    }

    fn get_request_body(
        &self,
        req: &RefundSyncRouterData,
        _connectors: &Connectors,
    ) -> CustomResult<RequestContent, errors::ConnectorError> {
        let connector_req = tsys::TsysSyncRequest::try_from(req)?;
        Ok(RequestContent::Json(Box::new(connector_req)))
    }

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

    fn handle_response(
        &self,
        data: &RefundSyncRouterData,
        event_builder: Option<&mut ConnectorEvent>,
        res: Response,
    ) -> CustomResult<RefundSyncRouterData, errors::ConnectorError> {
        let response: tsys::TsysSyncResponse = res
            .response
            .parse_struct("tsys 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 webhooks::IncomingWebhook for Tsys {
    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<'_>,
        _context: Option<&webhooks::WebhookContext>,
    ) -> CustomResult<api_models::webhooks::IncomingWebhookEvent, errors::ConnectorError> {
        Err(report!(errors::ConnectorError::WebhooksNotImplemented))
    }

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

static TSYS_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::Mastercard,
        common_enums::CardNetwork::Visa,
        common_enums::CardNetwork::AmericanExpress,
        common_enums::CardNetwork::Discover,
        common_enums::CardNetwork::JCB,
        common_enums::CardNetwork::UnionPay,
    ];

    let mut tsys_supported_payment_methods = SupportedPaymentMethods::new();

    tsys_supported_payment_methods.add(
        enums::PaymentMethod::Card,
        enums::PaymentMethodType::Credit,
        PaymentMethodDetails {
            mandates: enums::FeatureStatus::NotSupported,
            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(),
                    }
                }),
            ),
        },
    );

    tsys_supported_payment_methods.add(
        enums::PaymentMethod::Card,
        enums::PaymentMethodType::Debit,
        PaymentMethodDetails {
            mandates: enums::FeatureStatus::NotSupported,
            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(),
                    }
                }),
            ),
        },
    );

    tsys_supported_payment_methods
});

static TSYS_CONNECTOR_INFO: ConnectorInfo = ConnectorInfo {
    display_name: "Tsys",
    description: "TSYS, a Global Payments company, is the payment stack for the future, powered by unmatched expertise.",
    connector_type: enums::HyperswitchConnectorCategory::BankAcquirer,
    integration_status: enums::ConnectorIntegrationStatus::Beta,
};

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

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

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

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