package questionnairemod

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 db *mongos.Collection

func Init(ctx context.Context) {
	db = mongos.Shop.Coll(TN.Questionnaire)
	indexes := []mongo.IndexModel{
		{
			Keys: bson.D{
				{Key: FN.Questionnaire.Status, Value: 1},
				{Key: FN.Questionnaire.CreatedAt, Value: -1},
			},
		},
		{
			Keys: bson.D{
				{Key: FN.Questionnaire.CreatedAt, Value: -1},
			},
		},
	}
	if _, err := db.CreateIndex(ctx, indexes); err != nil {
		panic(fmt.Sprintf("(questionnaire:Init) Create Index failed! err:%+v", err))
	}
}

// InsertOne 插入一条问卷
func InsertOne(ctx context.Context, doc *QuestionnaireModel) *srvdef.SrvErr {
	if _, err := db.InsertOne(ctx, doc); err != nil {
		log.Warn("questionnairemod:InsertOne failed", log.E(err))
		return srvdef.New(srvdef.ErrDbInsertError, "", "")
	}
	return nil
}

// FindOne 查找一条问卷
func FindOne(ctx context.Context, filter bson.M, opts ...*options.FindOneOptions) (*QuestionnaireModel, *srvdef.SrvErr) {
	var doc QuestionnaireModel
	if err := db.FindOneEx(ctx, &doc, filter, opts...); err != nil {
		if err == mongo.ErrNoDocuments {
			return nil, srvdef.New(srvdef.ErrNoData, "", "")
		}
		log.Warn("questionnairemod:FindOne failed", log.E(err), log.Any("filter", filter))
		return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return &doc, nil
}

// FindMany 查找多条问卷
func FindMany(ctx context.Context, filter bson.M, opts ...*options.FindOptions) (QuestionnaireModelList, *srvdef.SrvErr) {
	data := make(QuestionnaireModelList, 0)
	if err := db.Find(ctx, &data, filter, opts...); err != nil {
		log.Warn("questionnairemod:FindMany failed", log.E(err), log.Any("filter", filter))
		return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return data, nil
}

// Count 统计问卷数量
func Count(ctx context.Context, filter bson.M) (int64, *srvdef.SrvErr) {
	count, err := db.Count(ctx, filter)
	if err != nil {
		log.Warn("questionnairemod:Count failed", log.E(err), log.Any("filter", filter))
		return 0, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return count, nil
}

// UpdateOne 更新一条问卷，返回 MatchedCount
func UpdateOne(ctx context.Context, filter bson.M, update bson.M) (int64, *srvdef.SrvErr) {
	result, err := db.UpdateOne(ctx, filter, update)
	if err != nil {
		log.Warn("questionnairemod:UpdateOne failed", log.E(err), log.Any("filter", filter))
		return 0, srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	return result.MatchedCount, nil
}