package elong_hotel

import (
	"context"
	"crypto/md5"
	"errors"
	"fmt"
	"net/url"
	"time"

	"github.com/zeromicro/go-zero/core/logx"
	"github.com/zywaited/xcopy"

	"repository.lenntc.com/lenntc/third-platform-sdk/client"
	"repository.lenntc.com/lenntc/third-platform-sdk/util"
)

// ElongHotelApi 同程酒店的api
// Api defines the interface of elong_hotel api
type ElongHotelApi interface {
	// GetExternalChannelConfig 获取渠道配置信息
	GetExternalChannelConfig(ctx context.Context, req GetExternalChannelConfigRequest, env string) (*ExternalChannelConfigResponse, error)
	// GenerateWechatUrl 生成微信小程序链接
	GenerateWechatUrl(ctx context.Context, req GenerateWechatUrlRequest) (string, error)
	// GenerateH5Url 生成H5链接
	GenerateH5Url(ctx context.Context, req GenerateH5UrlRequest) (string, error)
	// QueryOrderList 查询订单列表
	QueryOrderList(ctx context.Context, req QueryOrderListRequest, env string) (*ExternalOrderData, error)
}

type elongHotelApiImpl struct {
	log    logx.Logger
	client *Client
}

func newElongHotelApiImpl(log logx.Logger, client *Client) ElongHotelApi {
	return &elongHotelApiImpl{
		log:    log,
		client: client,
	}
}

// GetExternalChannelConfig 生成短链
func (t *elongHotelApiImpl) GetExternalChannelConfig(ctx context.Context, req GetExternalChannelConfigRequest, env string) (*ExternalChannelConfigResponse, error) {
	var apiUrl string
	token := t.client.authConfig.Token
	tn := time.Now()
	actionTime := tn.Unix()
	h := md5.New()
	h.Write([]byte(fmt.Sprintf("%s%d", token, actionTime)))
	queryArgs := &GetExternalChannelConfigReq{
		ActionTime: tn.Unix(),
		Token:      token,
		Code:       string(h.Sum(nil)),
		Trackid:    req.Trackid,
	}
	args := util.StructToMap(queryArgs)
	request := &client.HttpRequest{Headers: t.client.headers, QueryArgs: args}
	response := new(GetExternalChannelConfigResponse)
	if env == EnvHuidu {
		apiUrl = HDApiDomain + GetLinkUri
	} else {
		apiUrl = ApiDomain + GetLinkUri
	}
	if err := t.client.HttpGet(apiUrl, request, &client.HttpResponse{Result: response}); err != nil {
		return nil, err
	}
	if response.Code != 200 {
		t.log.WithFields(logx.LogField{Key: "data", Value: map[string]any{"req": req, "resp": response}}).
			Errorf("[elongHotelApiImpl][GetExternalChannelConfig] response result error: %s", response.Msg)
		return nil, errors.New(response.Msg)
	}
	return response.Data, nil
}

// GenerateWechatUrl 生成微信小程序链接
func (t *elongHotelApiImpl) GenerateWechatUrl(ctx context.Context, req GenerateWechatUrlRequest) (string, error) {
	if len(req.ActivityUrl) == 0 {
		return "", errors.New("url参数不能为空")
	}
	u, err := url.Parse(req.ActivityUrl)
	if err != nil {
		return "", errors.New("activityUrl不是一个url")
	}
	urlParams := u.Query()
	src := urlParams.Get("src")
	src, err = url.QueryUnescape(src)
	if err != nil {
		return "", errors.New("src参数解析失败")
	}
	srcUrl, err := url.Parse(src)
	if err != nil {
		return "", errors.New("activityUrl格式不符合要求，src参数不是一个url")
	}
	srcParams := srcUrl.Query()
	srcParams.Add("outUserid", req.Uid)
	srcParams.Add("outToken", t.client.authConfig.Token)
	srcUrl.RawQuery = srcParams.Encode()
	newSrc := url.QueryEscape(srcUrl.String())
	urlParams.Set("src", newSrc)
	urlSrc := fmt.Sprintf("src=%s", newSrc)
	urlParams.Del("src")
	u.RawQuery = fmt.Sprintf("%s&%s", urlSrc, urlParams.Encode())
	return u.String(), nil
}

// GenerateH5Url 生成H5链接
func (t *elongHotelApiImpl) GenerateH5Url(ctx context.Context, req GenerateH5UrlRequest) (string, error) {
	if len(req.ActivityUrl) == 0 {
		return "", errors.New("url参数不能为空")
	}
	u, err := url.Parse(req.ActivityUrl)
	if err != nil {
		return "", errors.New("activityUrl不是一个url")
	}
	urlParams := u.Query()
	urlParams.Set("linkCode", req.LinkCode)
	urlParams.Set("actId", req.ActId)
	u.RawQuery = urlParams.Encode()
	return u.String(), nil
}

// QueryOrderList 查询订单列表
func (t *elongHotelApiImpl) QueryOrderList(ctx context.Context, req QueryOrderListRequest, env string) (*ExternalOrderData, error) {
	var apiUrl string
	var apiReq *QueryOrderListReq
	if err := xcopy.Copy(&apiReq, req); err != nil {
		return nil, err
	}
	apiReq.AppId = t.client.authConfig.AppId
	args := util.StructToMap(apiReq)
	request := &client.HttpRequest{Headers: t.client.headers, QueryArgs: args}
	response := new(GetExternalOrderResp)
	if env == EnvHuidu {
		apiUrl = HDApiDomain + GetOrderListUri
	} else {
		apiUrl = ApiDomain + GetOrderListUri
	}
	if err := t.client.HttpGet(apiUrl, request, &client.HttpResponse{Result: response}); err != nil {
		return nil, err
	}
	if response.Code != 200 {
		t.log.WithFields(logx.LogField{Key: "data", Value: map[string]any{"req": req, "resp": response}}).
			Errorf("[elongHotelApiImpl][QueryOrderList] response result error: %s", response.Msg)
		return nil, errors.New(response.Msg)
	}
	return response.Data, nil
}