package feedbackmod

import (
	"context"
	"fmt"
	"videoweb/pub/common/log"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/mongos"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
	"go.mongodb.org/mongo-driver/mongo/options"
)

var coll *mongos.Collection

// Init 初始化 feedback 集合和常用查询索引
func Init(ctx context.Context) {
	coll = mongos.Shop.Coll(TN.Feedback)
	initIndex(ctx)
}

func initIndex(ctx context.Context) {
	indexes := []mongo.IndexModel{
		{
			Keys: bson.D{
				{Key: FN.Feedback.UserId, Value: 1},
				{Key: FN.Feedback.CreatedAt, Value: -1},
				{Key: FN.Feedback.Id, Value: -1},
			},
		},
		{
			Keys: bson.D{
				{Key: FN.Feedback.Status, Value: 1},
				{Key: FN.Feedback.CreatedAt, Value: -1},
				{Key: FN.Feedback.Id, Value: -1},
			},
		},
		{
			Keys: bson.D{
				{Key: FN.Feedback.CreatedAt, Value: -1},
				{Key: FN.Feedback.Id, Value: -1},
			},
		},
	}
	if _, err := coll.CreateIndex(ctx, indexes); err != nil {
		panic(fmt.Sprintf("(feedbackmod:initIndex) Create Index failed! err:%+v:", err))
	}
}

// InsertOneFeedback 插入一条用户意见反馈数据
//
// 当 doc.Id 为空时，会使用 mongos.Lid.Feedback 自动生成自增ID
func InsertOneFeedback(ctx context.Context, doc *Feedback) *srvdef.SrvErr {
	if doc.Id == 0 {
		doc.Id = mongos.Lid.Feedback.Get()
	}
	if _, err := coll.InsertOne(ctx, doc); err != nil {
		log.Warn("用户意见反馈写入失败", log.Any("doc", doc), log.E(err))
		return srvdef.New(srvdef.ErrDbInsertError, "", "")
	}
	return nil
}

// FindManyFeedback 按条件查询多条用户意见反馈数据
func FindManyFeedback(ctx context.Context, filter bson.M, opts ...*options.FindOptions) (FeedbackList, *srvdef.SrvErr) {
	var data FeedbackList
	if err := coll.Find(ctx, &data, filter, opts...); err != nil {
		log.Warn("用户意见反馈列表查询失败", log.E(err), log.Any("filter", filter))
		return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return data, nil
}

// CountFeedback 统计满足条件的用户意见反馈数量
func CountFeedback(ctx context.Context, filter bson.M, opts ...*options.CountOptions) (int64, *srvdef.SrvErr) {
	count, err := coll.Count(ctx, filter, opts...)
	if err != nil {
		log.Warn("用户意见反馈数量统计失败", log.E(err), log.Any("filter", filter))
		return 0, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return count, nil
}

// UpdateManyFeedbackWithResult 批量更新用户意见反馈数据，并返回命中数量和修改数量
func UpdateManyFeedbackWithResult(ctx context.Context, filter bson.M, update bson.M) (matchedCount int64, modifiedCount int64, serr *srvdef.SrvErr) {
	result, err := coll.UpdateMany(ctx, filter, update)
	if err != nil {
		log.Warn("用户意见反馈批量更新失败", log.E(err), log.Any("filter", filter))
		return 0, 0, srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	return result.MatchedCount, result.ModifiedCount, nil
}