// Copyright © 2023 OpenIM. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package relation

import (
	"context"

	"github.com/OpenIMSDK/tools/errs"

	"github.com/OpenIMSDK/tools/ormutil"

	"gorm.io/gorm"

	"github.com/OpenIMSDK/tools/utils"

	"github.com/openimsdk/open-im-server/v3/pkg/common/db/table/relation"
)

type BlackGorm struct {
	*MetaDB
}

func NewBlackGorm(db *gorm.DB) relation.BlackModelInterface {
	return &BlackGorm{NewMetaDB(db, &relation.BlackModel{})}
}

func (b *BlackGorm) Create(ctx context.Context, blacks []*relation.BlackModel) (err error) {
	return utils.Wrap(b.db(ctx).Create(&blacks).Error, "")
}

func (b *BlackGorm) Delete(ctx context.Context, blacks []*relation.BlackModel) (err error) {
	return utils.Wrap(b.db(ctx).Delete(blacks).Error, "")
}

func (b *BlackGorm) UpdateByMap(
	ctx context.Context,
	ownerUserID, blockUserID string,
	args map[string]interface{},
) (err error) {
	return utils.Wrap(
		b.db(ctx).Where("block_user_id = ? and block_user_id = ?", ownerUserID, blockUserID).Updates(args).Error,
		"",
	)
}

func (b *BlackGorm) Update(ctx context.Context, blacks []*relation.BlackModel) (err error) {
	return utils.Wrap(b.db(ctx).Updates(&blacks).Error, "")
}

func (b *BlackGorm) Find(
	ctx context.Context,
	blacks []*relation.BlackModel,
) (blackList []*relation.BlackModel, err error) {
	var where [][]interface{}
	for _, black := range blacks {
		where = append(where, []interface{}{black.OwnerUserID, black.BlockUserID})
	}
	return blackList, utils.Wrap(
		b.db(ctx).Where("(owner_user_id, block_user_id) in ?", where).Find(&blackList).Error,
		"",
	)
}

func (b *BlackGorm) Take(ctx context.Context, ownerUserID, blockUserID string) (black *relation.BlackModel, err error) {
	black = &relation.BlackModel{}
	return black, utils.Wrap(
		b.db(ctx).Where("owner_user_id = ? and block_user_id = ?", ownerUserID, blockUserID).Take(black).Error,
		"",
	)
}

func (b *BlackGorm) FindOwnerBlacks(
	ctx context.Context,
	ownerUserID string,
	pageNumber, showNumber int32,
) (blacks []*relation.BlackModel, total int64, err error) {
	err = b.db(ctx).Count(&total).Error
	if err != nil {
		return nil, 0, utils.Wrap(err, "")
	}
	totalUint32, blacks, err := ormutil.GormPage[relation.BlackModel](
		b.db(ctx).Where("owner_user_id = ?", ownerUserID),
		pageNumber,
		showNumber,
	)
	total = int64(totalUint32)
	return
}

func (b *BlackGorm) FindBlackUserIDs(ctx context.Context, ownerUserID string) (blackUserIDs []string, err error) {
	return blackUserIDs, utils.Wrap(
		b.db(ctx).Where("owner_user_id = ?", ownerUserID).Pluck("block_user_id", &blackUserIDs).Error,
		"",
	)
}

func (b *BlackGorm) FindOwnerBlackInfos(ctx context.Context, ownerUserID string, userIDs []string) (blacks []*relation.BlackModel, err error) {
	return blacks, errs.Wrap(b.db(ctx).Where("owner_user_id = ? and block_user_id in ?", ownerUserID, userIDs).Find(&blacks).Error)
}