package mongo

import (
	"context"
	"gitee.com/red-future---jilin-g/common/utils"
	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/glog"
	"github.com/gogf/gf/v2/text/gstr"
	"go.mongodb.org/mongo-driver/bson/primitive"
	"strings"
	"time"

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

var db = new(mongo.Database)

func init() {
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	link, _ := g.Cfg().Get(context.Background(), "mongo.address")
	mongoAddr := link.String()
	client, err := mongo.Connect(ctx, options.Client().ApplyURI(mongoAddr))
	if err != nil {
		glog.Error(ctx, "mongodb连接失败")
	}
	dbName := gstr.SubStr(mongoAddr, strings.LastIndex(mongoAddr, "/")+1, len(mongoAddr))
	db = client.Database(dbName)
}

// Find 查询多条记录
func Find(ctx context.Context, filter *primitive.M, result interface{}, collection string, opts ...*options.FindOptions) (err error) {
	if err = utils.ValidStructPtr(result); err != nil {
		return
	}
	cur, err := db.Collection(collection).Find(ctx, filter, opts...)
	if err != nil {
		return
	}
	err = cur.All(ctx, result)
	return
}

// FindOne 查询1条记录
func FindOne(ctx context.Context, filter *primitive.M, result interface{}, collection string, opts ...*options.FindOneOptions) (err error) {
	if len(*filter) == 0 {
		err = gerror.New("缺少查询条件")
		return
	}
	if err = utils.ValidStructPtr(result); err != nil {
		return
	}
	cur := db.Collection(collection).FindOne(ctx, filter, opts...)
	if err != nil {
		return
	}
	err = cur.Decode(result)
	if err == mongo.ErrNoDocuments {
		err = nil
	}
	return
}

// Delete 删除记录
func Delete(ctx context.Context, filter *primitive.M, collection string, opts ...*options.DeleteOptions) (count int64, err error) {
	r, err := db.Collection(collection).DeleteMany(ctx, filter, opts...)
	if err != nil {
		return
	}
	count = r.DeletedCount
	return
}

// Update 修改记录
func Update(ctx context.Context, filter *primitive.M, update interface{}, result *mongo.UpdateResult, collection string, opts ...*options.UpdateOptions) (err error) {
	if err = utils.ValidStructPtr(result); err != nil {
		return
	}
	result, err = db.Collection(collection).UpdateMany(ctx, filter, update, opts...)
	if err != nil {
		return
	}
	return
}

// Insert 修改记录
func Insert(ctx context.Context, documents []interface{}, collection string, opts ...*options.InsertManyOptions) (ids []interface{}, err error) {
	r, err := db.Collection(collection).InsertMany(ctx, documents, opts...)
	if err != nil {
		return
	}
	ids = r.InsertedIDs
	return
}