// services/hangguan.go
package services

import (
	"context"
	"encoding/json"
	"fmt"
	"go-policy-service/config"
	"go-policy-service/models"
	"go-policy-service/structs"
	"go-policy-service/utils"
	"math"
	"strconv"
	"strings"
)

type HangguanService struct {
	cfg        *config.Config
	httpClient utils.HTTPClient
	tokenMgr   *TokenManager
}

// 更新后的New方法
func NewHangguanService(
	cfg *config.Config,
	httpClient utils.HTTPClient,
	tokenMgr *TokenManager,
) *HangguanService {
	return &HangguanService{
		cfg:        cfg,
		httpClient: httpClient,
		tokenMgr:   tokenMgr,
	}
}

func (s *HangguanService) requestSFDataConvert(task models.HgFlightSearchTask, startDate string) ([]byte, error) {
	// 将 uint 日期转换为 YYYY-MM-DD 格式字符串)
	req := structs.ReqSearchFlightData{
		DepCode: task.Dep,
		ArrCode: task.Arr,
		Date:    startDate,
		FlyNo:   task.FlightNo,
	}

	// 将结构体转换为 JSON
	jsonData, err := utils.StringJsonConvert(req)
	if err != nil {
		return []byte{}, fmt.Errorf("SF 请求数据转化失败: %w", err)
	}
	return jsonData, nil
}

func (h *HangguanService) RequestSFlightData(ctx context.Context, task models.HgFlightSearchTask) {
	token, err := h.tokenMgr.GetAccessToken()
	if err != nil {
		utils.Logger.WithField("task_id", task.ID).Error("Failed to get access token: ", err)
	}
	//获取起飞时间列表
	startDateList, err := utils.ParseDateRange(task.DateRange)
	if err != nil {
		utils.Logger.WithField("task_id", task.ID).Error("获取起飞日期时间列表错误: ", err)
		return
	}
	for _, startDate := range startDateList {
		// 构建请求数据
		reqData, _ := h.requestSFDataConvert(task, startDate)
		// url
		url := fmt.Sprintf("%s%s?access_token=%s", h.cfg.HgApiUrl, "/distribution/api/search/flight/list", token)

		// 记录请求数据
		//utils.Logger.WithField("task_id", task.ID).Info("请求数据: ", string(reqData))
		// 调用第三方接口
		resp, err := h.httpClient.RequestWithProxy(ctx, "POST", url, reqData, h.cfg.ProxyUrl) //测试使用
		//resp, err := h.httpClient.RequestJSON(ctx, "POST", url, reqData)
		// 记录响应数据
		//utils.Logger.WithField("task_id", task.ID).Info("响应数据: ", string(resp))
		if err != nil {
			utils.Logger.WithField("task_id", task.ID).Error("API request failed: ", err)
			continue
		}
		//解析数据
		var srchResp structs.ResSearchFlight
		if err = json.Unmarshal(resp, &srchResp); err != nil {
			utils.Logger.WithField("task_id", task.ID).Error("数据解析失败: ", err)
			continue
		}

		if !srchResp.Success {
			utils.Logger.WithField("task_id", task.ID).Error("数据请求失败: ", srchResp.Msg)
			continue
		}

		// 处理响应数据
		err = h.processResponse(ctx, &task, &srchResp.Data, startDate)
		if err != nil {
			utils.Logger.WithField("task_id", task.ID).Error("Response processing failed: ", err)
			continue
		}
	}
}

func (h *HangguanService) processResponse(ctx context.Context, task *models.HgFlightSearchTask, response *structs.ResSearchFlightData, startDate string) error {
	// 实现具体的响应处理逻辑
	if response.Total <= 0 {
		return fmt.Errorf("返回数据为空")
	}

	pushDataList := make([]structs.Datum, 0)
	for _, fltData := range response.Datas {
		if fltData.FlightInfo.IsCancel == 1 ||
			len(fltData.CabinInfos) == 0 { //航班取消 或者 无舱位信息 或者 无实际承运航司
			continue
		}
		var minPrice float64 = 0
		var minPricePushData structs.Datum
	CabinLoop:
		for _, cabinPrice := range fltData.CabinInfos {
			//无售卖控制 或者 产品类型为 py
			if cabinPrice.AdtPrice.ProductType == "py" {
				continue
			}
			if len(cabinPrice.SaleControls) > 0 {
				for _, saleControls := range cabinPrice.SaleControls {
					// ... existing code ...
					if saleControls.PsNum != "" ||
						saleControls.PsType == "ADT+CHD" ||
						saleControls.PsIDType != "" ||
						saleControls.PsIDNo != "" ||
						saleControls.PsAdIdType != "" ||
						saleControls.NewMember == 1 ||
						saleControls.CheckThreeElement != 0 ||
						saleControls.HasAge != "" {
						continue CabinLoop
					}
					if saleControls.PsAge != "" ||
						!isRangeClose(saleControls.PsAge, 12, 100, 2, 0) {
						continue CabinLoop
					}
				}
			}

			if minPrice == 0 || cabinPrice.AdtPrice.Price < minPrice { //取最低价格的舱位信息
				minPrice = cabinPrice.AdtPrice.Price
				minPricePushData = structs.Datum{
					DepAir:          fltData.FlightInfo.DepCode,
					ArrAir:          fltData.FlightInfo.ArrCode,
					FlightStartDate: utils.DateFormmat(fltData.FlightInfo.DepDateTime, "2006-01-02"),
					PrintPrice:      cabinPrice.AdtPrice.Price,
					Stock:           cabinPrice.Left,
					FlightNo:        fltData.FlightInfo.FlyNo,
					Cabin:           cabinPrice.AdtPrice.Cabin,
					FlightEndDate:   utils.DateFormmat(fltData.FlightInfo.ArrDateTime, "2006-01-02"),
				}
			}
		}
		if minPricePushData == (structs.Datum{}) { //无可用舱位
			continue
		}
		pushDataList = append(pushDataList, minPricePushData)
	}
	// 构建推送数据
	pushData := structs.PushData{
		Data:                 pushDataList,
		IsPublishImmediately: 1,
		Query: structs.Query{
			DepAir:  task.Dep,
			ArrAir:  task.Arr,
			DepDate: startDate,
		},
		ServiceTag: "hgSpecail",
	}
	// 推送数据打印成 json 格式
	pushDataJson, _ := json.Marshal(pushData)
	utils.Logger.WithField("task_id", task.ID).Info("推送数据: ", string(pushDataJson))
	// 推送数据
	if err := h.PushPolicyData(ctx, pushData); err != nil {
		utils.Logger.WithField("task_id", task.ID).Error("推送失败: ", err)
		return err
	}
	return nil
}

func (h *HangguanService) PushPolicyData(ctx context.Context, data structs.PushData) error {
	pushData, err := json.Marshal(data)
	if err != nil {
		return fmt.Errorf("推送数据JSON 编码失败: %w", err)
	}

	url := h.cfg.PushUrl
	resp, err := h.httpClient.RequestJSON(ctx, "POST", url+"/api/policy/batch-policy-import", pushData)
	if err != nil {
		return fmt.Errorf("推送请求失败: %w", err)
	}

	var result struct {
		Code    int    `json:"code"`
		Message string `json:"message"`
	}
	if err := json.Unmarshal(resp, &result); err != nil {
		return fmt.Errorf("响应解析失败: %w", err)
	}

	if result.Code != 200 {
		return fmt.Errorf("推送接口返回错误: %s", result.Message)
	}
	return nil
}

/**
* 年龄限制
*   儿童期	1-12岁
*   青年 15-24
*   老年 60/65+
*   成年 18岁+
*   目标范围:[10, 100]
 */
// isRangeClose 检查 ranges 字符串中，是否存在一个子区间 [s,e]：
// 1) 与 [targetStart,targetEnd] 有交集；
// 2) |s - targetStart| ≤ startTol 且 |e - targetEnd| ≤ endTol
//
// ranges 格式示例："[25,60]|[23,60]|[70,80]"
// startTol、endTol 单位同年龄（比如 startTol=5 表示起点最多相差 5 岁，endTol=10 表示终点最多相差 10 岁）
func isRangeClose(ranges string, targetStart, targetEnd, startTol, endTol int) bool {
	parts := strings.Split(ranges, "|")
	if len(parts) >= 4 { // 有4段年龄范围以上的过滤
		return false
	}
	for _, part := range parts {
		part = strings.Trim(part, "[]")
		bounds := strings.Split(part, ",")
		if len(bounds) != 2 {
			continue
		}
		s, err1 := strconv.Atoi(strings.TrimSpace(bounds[0]))
		e, err2 := strconv.Atoi(strings.TrimSpace(bounds[1]))
		if err1 != nil || err2 != nil {
			continue
		}

		// 1) 必须有交集
		if e < targetStart || s > targetEnd {
			continue
		}
		// 2) 分别判断起点、终点容差
		if math.Abs(float64(s-targetStart)) <= float64(startTol) &&
			math.Abs(float64(e-targetEnd)) <= float64(endTol) {
			return true
		}
	}
	return false
}