package dao

import (
	"context"

	"cid/model/entity"

	"gitee.com/red-future---jilin-g/common/mongo"
	"go.mongodb.org/mongo-driver/v2/bson"
	"go.mongodb.org/mongo-driver/v2/mongo/options"
)

// applicationDao 应用DAO
type applicationDao struct {
}

var Application = &applicationDao{}

// Create 创建应用
func (d *applicationDao) Create(ctx context.Context, app *entity.Application) (string, error) {
	ids, err := mongo.DB().Insert(ctx, []interface{}{app}, "application")
	if err != nil {
		return "", err
	}
	if len(ids) > 0 {
		return ids[0].(string), nil
	}
	return "", nil
}

// GetByID 根据ID获取应用
func (d *applicationDao) GetByID(ctx context.Context, id string) (*entity.Application, error) {
	var app *entity.Application
	err := mongo.DB().FindOne(ctx, bson.M{"_id": id}, &app, "application")
	return app, err
}

// GetByTenantID 根据租户ID获取应用列表
func (d *applicationDao) GetByTenantID(ctx context.Context, tenantID string) ([]*entity.Application, error) {
	var apps []*entity.Application
	err := mongo.DB().Find(ctx,
		bson.M{"tenantId": tenantID}, &apps, "application")
	return apps, err
}

// GetByAPIKey 根据API密钥获取应用
func (d *applicationDao) GetByAPIKey(ctx context.Context, apiKey string) (*entity.Application, error) {
	var app *entity.Application
	err := mongo.DB().FindOne(ctx,
		bson.M{"appKey": apiKey}, &app, "application")
	return app, err
}

// Update 更新应用
func (d *applicationDao) Update(ctx context.Context, app *entity.Application) error {
	_, err := mongo.DB().Update(ctx, bson.M{"_id": app.Id}, bson.M{"$set": app}, "application")
	return err
}

// Delete 删除应用
func (d *applicationDao) Delete(ctx context.Context, id string) error {
	_, err := mongo.DB().Delete(ctx, bson.M{"_id": id}, "application")
	return err
}

// List 应用列表
func (d *applicationDao) List(ctx context.Context, tenantID string, page, pageSize int) ([]*entity.Application, int, error) {
	filter := bson.M{}
	if tenantID != "" {
		filter["tenantId"] = tenantID
	}

	var apps []*entity.Application
	total, err := mongo.DB().Count(ctx, filter, "application")
	if err != nil {
		return nil, 0, err
	}

	offset := (page - 1) * pageSize
	err = mongo.DB().Find(ctx, filter, &apps, "application",
		options.Find().SetSort(bson.M{"createdAt": -1}).
			SetSkip(int64(offset)).
			SetLimit(int64(pageSize)))
	if err != nil {
		return nil, 0, err
	}

	return apps, int(total), nil
}

// GetByName 根据名称获取应用
func (d *applicationDao) GetByName(ctx context.Context, name string) (*entity.Application, error) {
	var app *entity.Application
	err := mongo.DB().FindOne(ctx, bson.M{"name": name}, &app, "application")
	return app, err
}

// UpdateFields 更新应用部分字段
func (d *applicationDao) UpdateFields(ctx context.Context, id string, data *entity.Application) error {
	_, err := mongo.DB().Update(ctx, bson.M{"_id": id}, bson.M{"$set": data}, "application")
	return err
}