package app

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

type CameraService struct {
}

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

// 判断摄像机是否已注册
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
	}
	fmt.Println(camera)
	if camera.SN != "" {
		//已注册至数据库,绑定至网关
		global.Db.Model(&app.Camera{}).Where("id = ?", camera.ID).Update("gid", gwId)
		return errors.New("摄像头已注册")
	}
	//注册
	var ca = &app.Camera{SN: info.SerialNumber, Gid: gwId, MacAddress: info.MacAddress}
	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 删除摄像机记录
// 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 批量删除摄像机记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) DeleteCameraByIds(ids request.IdsReq) (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 更新摄像机记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) UpdateCamera(camera app.Camera) (err error) {
	fmt.Println("camera", camera)
	err = global.Db.Debug().Omit("id, created_at, deleted_at, gid, name, sn,mac_address, deleted_by").Save(&camera).Error
	return err
}

// GetCamera 根据id获取摄像机记录
// 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
}

// GetCameraByGid 根据网关id获取摄像机
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
}

// GetCameraByDeviceId 根据设备id获取摄像机
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
}

// 获取摄像机的注册id
func (cameraService *CameraService) SetCameraRegisted(devId string) (err error) {
	return global.Db.Table("camera").Where("sn = ? AND is_deleted = 0", devId).Update("is_registed", 1).Debug().Error
}

// GetCameraInfoList 分页获取摄像机记录
// Author [piexlmax](https://github.com/piexlmax)
func (cameraService *CameraService) GetCameraInfoList(info appReq.CameraSearch) (list []app.Camera, total int64, err error) {
	limit := info.PageSize
	offset := info.PageSize * (info.Page - 1)
	// 创建db
	db := global.Db.Model(&app.Camera{})
	var cameras []app.Camera
	// 如果有条件搜索 下方会自动创建搜索语句
	if info.StartCreatedAt != nil && info.EndCreatedAt != nil {
		db = db.Where("created_at BETWEEN ? AND ?", info.StartCreatedAt, info.EndCreatedAt)
	}
	err = db.Count(&total).Error
	if err != nil {
		return
	}

	if limit != 0 {
		db = db.Limit(limit).Offset(offset)
	}

	err = db.Find(&cameras).Error
	return cameras, total, err
}

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