package contactusmod

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 contactus 集合和常用查询索引
func Init(ctx context.Context) {
	coll = mongos.Shop.Coll(TN.ContactUs)
	initIndex(ctx)
}

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

// InsertOneContactUs 插入一条联系我们数据
//
// 当 doc.Id 为空时，会使用 mongos.Lid.ContactUs 自动生成自增ID
func InsertOneContactUs(ctx context.Context, doc *ContactUs) *srvdef.SrvErr {
	if doc.Id == 0 {
		doc.Id = mongos.Lid.ContactUs.Get()
	}
	if _, err := coll.InsertOne(ctx, doc); err != nil {
		log.Warn("联系我们记录写入失败", log.Any("doc", doc), log.E(err))
		return srvdef.New(srvdef.ErrDbInsertError, "", "")
	}
	return nil
}

// FindManyContactUs 按条件查询多条联系我们数据
func FindManyContactUs(ctx context.Context, filter bson.M, opts ...*options.FindOptions) (ContactUsList, *srvdef.SrvErr) {
	var data ContactUsList
	if err := coll.Find(ctx, &data, filter, opts...); err != nil {
		log.Warn("联系我们列表查询失败", log.E(err), log.Any("filter", filter))
		return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return data, nil
}

// CountContactUs 统计满足条件的联系我们数量
func CountContactUs(ctx context.Context, filter bson.M, opts ...*options.CountOptions) (int64, *srvdef.SrvErr) {
	count, err := coll.Count(ctx, filter, opts...)
	if err != nil {
		log.Warn("联系我们数量统计失败", log.E(err), log.Any("filter", filter))
		return 0, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return count, nil
}

// UpdateManyContactUsWithResult 批量更新联系我们数据，并返回命中数量和修改数量
func UpdateManyContactUsWithResult(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("联系我们批量更新失败", log.E(err), log.Any("filter", filter))
		return 0, 0, srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	return result.MatchedCount, result.ModifiedCount, nil
}