package dao

import (
	"cid/model/dto"
	"cid/model/entity"
	"context"
	"time"

	"gitee.com/red-future---jilin-g/common/http"
	"gitee.com/red-future---jilin-g/common/mongo"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/util/gconv"
	"go.mongodb.org/mongo-driver/v2/bson"
	"go.mongodb.org/mongo-driver/v2/mongo/options"
)

var Advertisement = &advertisement{}

type advertisement struct {
}

// Insert 插入广告
func (d *advertisement) Insert(ctx context.Context, advertisement *entity.Advertisement) (err error) {
	// 获取stream消息
	redis := g.Redis()
	streamMsg, err := redis.Do(ctx, "XREAD", "STREAMS", "advertisement_stream", "$")
	if err != nil {
		g.Log().Errorf(ctx, "获取stream消息失败: %v", err)
	} else {
		g.Log().Infof(ctx, "获取到stream消息: %v", streamMsg)
	}

	_, err = mongo.DB().Insert(ctx, []interface{}{advertisement}, entity.AdvertisementCollection)
	return
}

// Update 更新广告
func (d *advertisement) Update(ctx context.Context, req *dto.UpdateAdvertisementReq) (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{}

	// 广告基本信息
	if !g.IsEmpty(req.Title) {
		updateFields["title"] = req.Title
	}
	if !g.IsEmpty(req.Description) {
		updateFields["description"] = req.Description
	}
	if !g.IsEmpty(req.AdvertiserId) {
		updateFields["advertiserId"] = req.AdvertiserId
	}
	if !g.IsEmpty(req.AdPositionId) {
		updateFields["adPositionId"] = req.AdPositionId
	}
	if !g.IsEmpty(req.AdType) {
		updateFields["adType"] = req.AdType
	}
	if !g.IsEmpty(req.AdFormat) {
		updateFields["adFormat"] = req.AdFormat
	}
	if !g.IsEmpty(req.MaterialUrl) {
		updateFields["materialUrl"] = req.MaterialUrl
	}
	if !g.IsEmpty(req.TargetUrl) {
		updateFields["targetUrl"] = req.TargetUrl
	}

	// 投放设置
	if req.StartDate != nil {
		updateFields["startDate"] = *req.StartDate
	}
	if req.EndDate != nil {
		updateFields["endDate"] = *req.EndDate
	}
	if req.Budget != nil {
		updateFields["budget"] = *req.Budget
	}
	if req.DailyBudget != nil {
		updateFields["dailyBudget"] = *req.DailyBudget
	}
	if req.BidAmount != nil {
		updateFields["bidAmount"] = *req.BidAmount
	}
	if !g.IsEmpty(req.BillingType) {
		updateFields["billingType"] = req.BillingType
	}

	// 投放条件
	if req.Targeting != nil {
		updateFields["targeting"] = req.Targeting
	}

	// 状态信息
	if req.Status != nil {
		updateFields["status"] = *req.Status
	}
	if req.AuditStatus != nil {
		updateFields["auditStatus"] = *req.AuditStatus
	}
	if req.AuditReason != nil {
		updateFields["auditReason"] = *req.AuditReason
	}

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

// UpdateStatus 更新广告状态
func (d *advertisement) UpdateStatus(ctx context.Context, id, status string) (err error) {
	objectId, err := bson.ObjectIDFromHex(id)
	if err != nil {
		return
	}
	filter := bson.M{"_id": objectId}
	update := bson.M{"$set": bson.M{"status": status}}

	_, err = mongo.DB().Update(ctx, filter, update, entity.AdvertisementCollection)
	return
}

// Audit 审核广告
func (d *advertisement) Audit(ctx context.Context, id, auditStatus, auditReason string) (err error) {
	objectId, err := bson.ObjectIDFromHex(id)
	if err != nil {
		return
	}
	filter := bson.M{"_id": objectId}

	// 获取当前用户ID（实际项目中应从上下文获取）
	auditBy := "system"
	auditTime := time.Now().Unix()

	update := bson.M{
		"$set": bson.M{
			"auditStatus": auditStatus,
			"auditReason": auditReason,
			"auditTime":   auditTime,
			"auditBy":     auditBy,
		},
	}

	_, err = mongo.DB().Update(ctx, filter, update, entity.AdvertisementCollection)
	return
}

// UpdateStatistics 更新广告统计数据
func (d *advertisement) UpdateStatistics(ctx context.Context, id string, stats map[string]interface{}) (err error) {
	objectId, err := bson.ObjectIDFromHex(id)
	if err != nil {
		return
	}
	filter := bson.M{"_id": objectId}
	update := bson.M{"$set": stats}

	_, err = mongo.DB().Update(ctx, filter, update, entity.AdvertisementCollection)
	return
}

// GetOne 获取单个广告
func (d *advertisement) GetOne(ctx context.Context, id string) (advertisement *entity.Advertisement, err error) {
	objectId, err := bson.ObjectIDFromHex(id)
	if err != nil {
		return
	}
	filter := bson.M{"_id": objectId}

	advertisement = &entity.Advertisement{}
	err = mongo.DB().FindOne(ctx, filter, advertisement, entity.AdvertisementCollection)
	return
}

// buildListFilter 构建列表查询的过滤条件
func (d *advertisement) buildListFilter(req *dto.ListAdvertisementReq) bson.M {
	filter := bson.M{}

	if !g.IsEmpty(req.AdvertiserId) {
		filter["advertiserId"] = req.AdvertiserId
	}
	if !g.IsEmpty(req.AdPositionId) {
		filter["adPositionId"] = req.AdPositionId
	}
	if !g.IsEmpty(req.AdType) {
		filter["adType"] = req.AdType
	}
	if !g.IsEmpty(req.Status) {
		filter["status"] = req.Status
	}
	if !g.IsEmpty(req.AuditStatus) {
		filter["auditStatus"] = req.AuditStatus
	}
	if !g.IsEmpty(req.Title) {
		filter["title"] = bson.M{"$regex": req.Title, "$options": "i"}
	}

	// 处理日期范围
	if len(req.DateRange) == 2 {
		startTime := gconv.Int64(req.DateRange[0])
		endTime := gconv.Int64(req.DateRange[1])
		filter["createdAt"] = bson.M{
			"$gte": startTime,
			"$lte": endTime,
		}
	}

	return filter
}

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

// List 获取广告列表
func (d *advertisement) List(ctx context.Context, req *dto.ListAdvertisementReq) (list []*entity.Advertisement, 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 = http.PageSize
	}

	limit := int64(pageSize)
	skip := int64((pageNum - 1) * pageSize)

	// 排序处理
	sort := bson.M{"createdAt": -1}

	opts := options.Find().SetLimit(limit).SetSkip(skip).SetSort(sort)

	err = mongo.DB().Find(ctx, filter, &list, entity.AdvertisementCollection, opts)
	return
}