package dao

import (
	"context"
	"customer-server/model/dto"
	"customer-server/model/entity"

	"gitea.com/red-future/common/beans"
	"gitea.com/red-future/common/db/mongo"
	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/gtime"
	"go.mongodb.org/mongo-driver/v2/bson"
)

var Data = new(data)

type data struct{}

// Insert 插入数据
func (d *data) Insert(ctx context.Context, data *entity.Data) (err error) {
	_, err = mongo.DB().Insert(ctx, []interface{}{data}, entity.DataCollection)
	return
}

// Update 更新数据
func (d *data) Update(ctx context.Context, req *dto.UpdateDataReq) (err error) {
	objectId, err := bson.ObjectIDFromHex(req.Id)
	if err != nil {
		return
	}
	filter := bson.M{"_id": objectId}

	// 构建动态更新字段
	updateFields := bson.M{}
	if !g.IsEmpty(req.CustomerId) {
		updateFields["customerId"] = req.CustomerId
	}
	if !g.IsEmpty(req.AccountName) {
		updateFields["accountName"] = req.AccountName
	}
	if req.IsInbound != nil {
		updateFields["isInbound"] = *req.IsInbound
	}
	if req.IsActive != nil {
		updateFields["isActive"] = *req.IsActive
	}
	if req.IsServed != nil {
		updateFields["isServed"] = *req.IsServed
	}
	if req.HasSentContactCard != nil {
		updateFields["hasSentContactCard"] = *req.HasSentContactCard
	}
	if req.HasSentNameCard != nil {
		updateFields["hasSentNameCard"] = *req.HasSentNameCard
	}
	if req.HasLeftContactInfo != nil {
		updateFields["hasLeftContactInfo"] = *req.HasLeftContactInfo
	}

	if len(updateFields) > 0 {
		_, err = mongo.DB().Update(ctx, filter, bson.M{"$set": updateFields}, entity.DataCollection)
	}
	return
}

// // Delete 删除数据
// func (d *data) Delete(ctx context.Context, req *dto.DeleteDataReq) (err error) {
// 	objectId, err := bson.ObjectIDFromHex(req.Id)
// 	if err != nil {
// 		return
// 	}
// 	filter := bson.M{"_id": objectId}
// 	_, err = mongo.DB().Delete(ctx, filter, d.collection)
// 	return
// }

// buildListFilter 构建列表查询的过滤条件
func (d *data) buildListFilter(req *dto.ListDataReq) bson.M {
	filter := bson.M{}
	if !g.IsEmpty(req.CustomerId) {
		filter["customerId"] = req.CustomerId
	}
	if !g.IsEmpty(req.AccountName) {
		filter["accountName"] = *req.AccountName
	}

	// 处理时间范围筛选
	if !g.IsEmpty(req.StartDate) || !g.IsEmpty(req.EndDate) {
		timeFilter := bson.M{}

		// 开始日期：大于等于当天 00:00:00（时间戳秒）
		if !g.IsEmpty(req.StartDate) {
			// 将日期字符串转换为时间戳（秒）
			startTime, err := parseDate(req.StartDate)
			if err == nil {
				timeFilter["$gte"] = startTime
			}
		}

		// 结束日期：小于等于当天 23:59:59（时间戳秒）
		if !g.IsEmpty(req.EndDate) {
			// 将日期字符串转换为时间戳（秒）+ 86399（一天的最后一秒）
			endTime, err := parseDate(req.EndDate)
			if err == nil {
				timeFilter["$lte"] = endTime + 86399 // 加上一天的秒数 - 1
			}
		}

		if len(timeFilter) > 0 {
			filter["sessionStartTime"] = timeFilter
		}
	}

	return filter
}

// checkTotalCount 检查总数
func (d *data) checkTotalCount(ctx context.Context, filter bson.M) (total int64, err error) {
	total, err = mongo.DB().Count(ctx, filter, entity.DataCollection)
	return
}

// List 获取数据列表
func (d *data) List(ctx context.Context, req *dto.ListDataReq) (list []*entity.Data, total int64, err error) {
	// 构建查询过滤条件
	filter := d.buildListFilter(req)

	// 检查总数
	total, err = d.checkTotalCount(ctx, filter)
	if err != nil {
		return
	}

	// 分页参数处理
	pageNum := req.PageNum
	if pageNum <= 0 {
		pageNum = 1
	}
	pageSize := req.PageSize
	if pageSize <= 0 {
		pageSize = 20
	}

	// 使用统一的mongo.DB().Find方法（支持分页和排序）
	page := &beans.Page{
		PageNum:  int64(pageNum),
		PageSize: int64(pageSize),
	}
	orderBy := []beans.OrderBy{
		{Field: "sessionStartTime", Order: beans.Desc}, // 按会话开始时间倒序
	}

	_, err = mongo.DB().Find(ctx, filter, &list, entity.DataCollection, page, orderBy)
	return
}

// parseDate 将日期字符串（YYYY-MM-DD）转换为时间戳（秒）
func parseDate(dateStr string) (int64, error) {
	// 使用 gtime 解析日期字符串
	t := gtime.NewFromStr(dateStr)
	if t == nil {
		return 0, gerror.New("日期格式错误")
	}
	// 返回时间戳（秒）
	return t.Timestamp(), nil
}