package app

import (
	"errors"
	"fmt"
	"github.com/sirupsen/logrus"
	"gorm.io/gorm"
	"io/ioutil"
	"lcfns/global"
	"lcfns/isapi"
	"lcfns/model/app"
	"lcfns/model/common/request"
	"net/http"
	"net/url"
)

type CameraService struct {
}

// CreateCamera 创建Camera记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) CreateCamera(camera *app.Camera) (err error) {
	err = global.Db.Create(camera).Error
	return err
}

func (cameraService *CameraService) CreateIfNotExist(info isapi.DeviceInfo, gwId uint) (err error) {
	var camera app.Camera
	err = global.Db.Select("id,sn").Model(&app.Camera{}).Where("sn = ? AND is_deleted = 0", info.SerialNumber).Scan(&camera).Debug().Error
	if err != nil {
		return err
	}
	if camera.SN != "" {
		//已注册至数据库,绑定至网关,更新摄像头状态
		var m = map[string]any{"gid": gwId, "state": 1}
		global.Db.Model(&app.Camera{}).Where("id = ?", camera.ID).Updates(m)
		return errors.New("摄像头已注册")
	}
	//注册
	var ca = &app.Camera{SN: info.SerialNumber, Gid: gwId, MacAddress: info.MacAddress, State: 1}
	err = global.Db.Create(ca).Debug().Error
	if err != nil {
		return err
	}
	logrus.Infof("摄像头注册成功:%s", info.SerialNumber)
	return nil
}

// DeleteCamera 删除Camera记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) DeleteCamera(camera app.Camera) (err error) {
	err = global.Db.Transaction(func(tx *gorm.DB) error {
		if err := tx.Debug().Model(&app.Camera{}).Where("id = ?", camera.ID).Update("is_deleted", 1).Error; err != nil {
			return err
		}
		if err = tx.Debug().Delete(&camera).Error; err != nil {
			return err
		}
		return nil
	})
	return err
}

// DeleteCameraByIds 批量删除Camera记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) DeleteCameraByIds(ids request.IdsReq, deleted_by uint) (err error) {
	err = global.Db.Transaction(func(tx *gorm.DB) error {
		if err := tx.Model(&app.Camera{}).Where("id in ?", ids.Ids).Update("is_deleted", 1).Error; err != nil {
			return err
		}
		if err := tx.Where("id in ?", ids.Ids).Delete(&app.Camera{}).Error; err != nil {
			return err
		}
		return nil
	})
	return err
}

// UpdateCamera 更新Camera记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) UpdateCamera(camera app.Camera) (err error) {
	//err = global.Db.Debug().Omit("created_at, deleted_at, id, Gid, created_by, deleted_by, user_name, password").SaveEventPicture(&camera).Error
	err = global.Db.Debug().Omit("id, created_at, deleted_at, gid, name,state, sn,mac_address, deleted_by").Save(&camera).Error
	return err
}

// GetCamera 根据id获取Camera记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) GetCamera(id uint) (camera app.Camera, err error) {
	err = global.Db.Where("id = ? AND is_deleted = 0", id).First(&camera).Error
	return
}

func (cameraService *CameraService) GetCameraByGid(id string) (cameras []app.Camera, err error) {
	err = global.Db.Where("gid = ? AND is_deleted = 0", id).Find(&cameras).Debug().Error
	return
}

func (cameraService *CameraService) GetCameraByDeviceId(devId string) (camera app.Camera, err error) {
	err = global.Db.Where("sn = ? AND is_deleted = 0", devId).Find(&camera).Debug().Error
	return
}

func (cameraService *CameraService) SetCameraRegisted(devId string) (err error) {
	//return global.Db.Table("camera").Where("device_id = ? AND deleted_by = 0", devId).Update("is_registed", 1).Debug().Error
	return global.Db.Table("camera").Where("sn = ? AND is_deleted = 0", devId).Update("is_registed", 1).Debug().Error
}

// GetRewindText 请求回话加密数据
func (cameraService *CameraService) GetRewindText(streamId string, date string) (string, error) {
	baseUrl := global.Config.Foreign.SecurityRewindUrl
	api := baseUrl + "/list/%v/%v"
	url2 := fmt.Sprintf(api, streamId, url.QueryEscape(date))
	return getRewindApi(url2)
}

// getRewindApi 公用请求接口
func getRewindApi(url string) (string, error) {
	method := "GET"

	client := &http.Client{}
	req, err := http.NewRequest(method, url, nil)

	if err != nil {
		return "", nil
	}
	res, err := client.Do(req)
	if err != nil {
		return "", nil
	}
	defer res.Body.Close()

	body, err := ioutil.ReadAll(res.Body)
	if err != nil {
		return "", nil
	}
	return string(body), err
}