package COMB

import (
	"context"
	"encoding/hex"
	"encoding/json"
	"sync"

	"tianyuan-api/apps/api/internal/common"
	"tianyuan-api/apps/api/internal/svc"
	"tianyuan-api/apps/api/internal/types"
	"tianyuan-api/apps/api/internal/validator"
	"tianyuan-api/apps/api/internal/westmodel"
	"tianyuan-api/pkg/crypto"
	"tianyuan-api/pkg/errs"

	"github.com/zeromicro/go-zero/core/logx"
)

type COMB298YLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// WestAPIRequest 定义西部API请求结构
type APIRequest struct {
	SourceId  string
	ServiceId string
	Request   map[string]interface{}
	Mapping   map[string]string
	Wrap      string
	Service   string
}

// WestAPIResponse 定义西部API响应结构
type APIResponse struct {
	ServiceId string
	Resp      json.RawMessage
	Success   bool
}

// 将所有响应组装成JSON
type ResponseData struct {
	Responses []struct {
		ServiceId string          `json:"api_code"`
		Data      json.RawMessage `json:"data"`
		Success   bool            `json:"success"`
	} `json:"responses"`
}

func NewCOMB298YLogic(ctx context.Context, svcCtx *svc.ServiceContext) *COMB298YLogic {
	return &COMB298YLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *COMB298YLogic) COMB298Y(req *types.Request) (resp string, err *errs.AppError) {
	var status string
	var charges bool
	var remark = ""
	secretKey, ok := l.ctx.Value("secretKey").(string)
	if !ok {
		return "", errs.ErrSystem
	}
	transactionID, ok := l.ctx.Value("transactionID").(string)
	if !ok {
		return "", errs.ErrSystem
	}
	userId, userIdOk := l.ctx.Value("userId").(int64)
	if !userIdOk {
		return "", errs.ErrSystem
	}
	productCode, productCodeOk := l.ctx.Value("productCode").(string)
	if !productCodeOk || productCode == "" {
		return "", errs.ErrSystem
	}

	defer func() {
		if err != nil {
			status = "failed"
			charges = false
		} else {
			status = "success"
			charges = true
		}
		sendApiRequestMessageErr := l.svcCtx.ApiRequestMqsService.SendApiRequestMessage(l.ctx, transactionID, userId, productCode, status, charges, remark)
		if sendApiRequestMessageErr != nil {
			logx.Errorf("发送 API 请求消息失败: %v", err)
		}
	}()
	// 1、解密
	key, decodeErr := hex.DecodeString(secretKey)
	if decodeErr != nil {
		return "", errs.ErrSystem
	}
	decryptData, aesDecryptErr := crypto.AesDecrypt(req.Data, key)
	if aesDecryptErr != nil || len(decryptData) == 0 {
		return "", errs.ErrParamDecryption
	}

	// 2、校验
	var data validator.COMB298YRequest
	if validatorErr := validator.ValidateAndParse(decryptData, &data); validatorErr != nil {
		return "", errs.ErrParamValidation
	}

	// 3、西部加密
	westConfig := l.svcCtx.Config.WestConfig
	encryptedFields, encryptStructFieldsErr := common.EncryptStructFields(data, westConfig.Key)
	if encryptStructFieldsErr != nil {
		logx.Errorf("西部加密错误：%v", encryptStructFieldsErr)
		return "", errs.ErrSystem
	}

	// 4、发送请求到西部
	logx.Infof("交易号：%s", transactionID)

	// 准备并发请求
	apiRequests := []APIRequest{
		{SourceId: "G16BJ02", ServiceId: "YYSY09CD", Mapping: westmodel.YYSY09CDFieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G27BJ05", ServiceId: "JRZQ0A03", Mapping: westmodel.JRZQ0A03FieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G28BJ05", ServiceId: "JRZQ8203", Mapping: westmodel.JRZQ8203FieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G26BJ05", ServiceId: "FLXG3D56", Mapping: westmodel.FLXG3D56FieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G22SC01", ServiceId: "FLXGCA3D", Mapping: westmodel.FLXGCA3DFieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G29BJ05", ServiceId: "JRZQ4AA8", Mapping: westmodel.JRZQ4AA8FieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G30BJ05", ServiceId: "FLXGC9D1", Mapping: westmodel.FLXGC9D1FieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G32BJ05", ServiceId: "FLXG162A", Mapping: westmodel.FLXG162AFieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G03HZ01", ServiceId: "FLXG54F5", Mapping: westmodel.FLXG54F5FieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G09XM02", ServiceId: "IVYZ5733", Mapping: westmodel.IVYZ5733FieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G11BJ06", ServiceId: "IVYZ9A2B", Mapping: westmodel.IVYZ9A2BFieldMapping, Wrap: "data", Service: "west"},
		{SourceId: "G05HZ01", ServiceId: "QYGLB4C0", Mapping: westmodel.QYGLB4C0FieldMapping, Wrap: "", Service: "west"},
		{SourceId: "RIS031", ServiceId: "FLXG8UI0", Mapping: westmodel.FLXG8UI0FieldMapping, Wrap: "data", Service: "yushan"},
	}

	// 为每个请求构建对应的请求参数
	for i := range apiRequests {
		apiRequests[i].Request = common.MapStructToAPIRequest(encryptedFields, apiRequests[i].Mapping, apiRequests[i].Wrap)
	}

	// 创建响应通道
	responseChan := make(chan APIResponse, len(apiRequests))
	var wg sync.WaitGroup

	// 并发处理请求
	for _, apiReq := range apiRequests {
		wg.Add(1)
		go func(req APIRequest) {
			defer wg.Done()
			success := true
			var westResp string
			var callAPIErr *errs.AppError

			// 根据服务类型选择不同的调用方式
			switch req.Service {
			case "west":
				respData, err := l.svcCtx.WestDexService.CallAPI(req.SourceId, req.Request, l.svcCtx.Config.WestConfig.SecretId)
				if err != nil {
					callAPIErr = err
					westResp = "{}" // 发生错误时返回空对象
				} else {
					// 确保返回的是有效的 JSON
					if len(respData) == 0 {
						westResp = "{}"
					} else {
						// 验证 JSON 是否有效
						var jsonCheck interface{}
						if json.Unmarshal(respData, &jsonCheck) != nil {
							westResp = "{}"
						} else {
							westResp = string(respData)
						}
					}
				}
			case "yushan":
				respData, err := l.svcCtx.YushanService.Request(req.SourceId, req.Request)
				if err != nil {
					if appErr, ok := err.(*errs.AppError); ok {
						callAPIErr = appErr
					} else {
						callAPIErr = errs.ErrSystem
					}
					westResp = "{}" // 发生错误时返回空对象
				} else {
					// 确保返回的是有效的 JSON
					if len(respData) == 0 {
						westResp = "{}"
					} else {
						// 验证 JSON 是否有效
						var jsonCheck interface{}
						if json.Unmarshal(respData, &jsonCheck) != nil {
							westResp = "{}"
						} else {
							westResp = string(respData)
						}
					}
				}
			default:
				success = false
				westResp = "{}"
				logx.Errorf("未知的服务类型：%s", req.Service)
			}

			if callAPIErr != nil {
				success = false
			}

			// 确保响应是有效的 JSON
			var jsonResp json.RawMessage
			if err := json.Unmarshal([]byte(westResp), &jsonResp); err != nil {
				jsonResp = json.RawMessage("{}")
			}

			responseChan <- APIResponse{
				ServiceId: req.ServiceId,
				Resp:      jsonResp,
				Success:   success,
			}
		}(apiReq)
	}

	// 等待所有请求完成
	go func() {
		wg.Wait()
		close(responseChan)
	}()

	// 处理响应
	var responses []APIResponse
	for resp := range responseChan {
		responses = append(responses, resp)
	}

	responseData := ResponseData{
		Responses: make([]struct {
			ServiceId string          `json:"api_code"`
			Data      json.RawMessage `json:"data"`
			Success   bool            `json:"success"`
		}, len(responses)),
	}

	for i, resp := range responses {
		responseData.Responses[i] = struct {
			ServiceId string          `json:"api_code"`
			Data      json.RawMessage `json:"data"`
			Success   bool            `json:"success"`
		}{
			ServiceId: resp.ServiceId,
			Data:      resp.Resp,
			Success:   resp.Success,
		}
	}

	// 将响应数据转换为JSON
	jsonData, marshalErr := json.Marshal(responseData)
	if marshalErr != nil {
		logx.Errorf("JSON编码错误：%v", marshalErr)
		return "", errs.ErrSystem
	}

	// 加密JSON数据
	encryptData, aesEncrypt := crypto.AesEncrypt(jsonData, key)
	if aesEncrypt != nil {
		return "", errs.ErrSystem
	}

	return string(encryptData), nil
}