package api

import (
	"changeme/internal/logic/cameraFunc"
	"changeme/internal/logic/util/response"
	"fmt"
	"strings"
	"sync"

	"github.com/gogf/gf/v2/net/ghttp"
)

func DownLoadCameraJpg(r *ghttp.Request) {
	deviceId := r.Get("device_id").String()
	fileType := r.Get("file_type").String()
	id := r.Get("id").String()
	if deviceId == "" || id == "" {
		response.FailJson(true, r,"参数错误")
		return
	}
	if fileType == "" {
		err1 := cameraFunc.DownLoadCameraJpgByFtp(id,deviceId,"1")
		err2 := cameraFunc.DownLoadCameraJpgByFtp(id,deviceId,"2")
		
		if err1 != nil && err2 != nil {
			response.FailJson(true, r,"下载失败",[]string{err1.Error(),err2.Error()})
			return
		}

		if err1 != nil && err2 == nil {
			response.FailJson(true, r,"预览图下载失败,高清图下载成功",[]string{err1.Error()})
			return
		}

		if err1 == nil && err2 != nil {
			response.FailJson(true, r,"预览图下载成功,高清图下载失败",[]string{err2.Error()})
			return
		}

		response.SusJson(true, r, "下载成功")

	}else{
		err := cameraFunc.DownLoadCameraJpgByFtp(id,deviceId,fileType)
		if err != nil {
			response.FailJson(true, r,"下载失败",[]string{err.Error()})
			return
		}
		response.SusJson(true, r, "下载成功")
	}
}

func DownLoadAllCameraJpg(r *ghttp.Request) {
	fileType := r.Get("file_type").String()
	ids := r.Get("ids").String()
	if ids == "" {
		response.FailJson(true, r, "参数错误")
		return
	}
	arrIds := strings.Split(ids, ",")
	arrDeviceId := []string{
		"11", "12", "14", "22", "23", "32", "34", "42", "43", "52", "54", "62", 
		"63", "71", "72", "74", "82", "83", "92", "94", "102", "103", "112", 
		"114", "122", "123",
	}
	arrFail := make([]string, 0)
	var wg sync.WaitGroup
	var mu sync.Mutex

	// 控制并发数，限制最大并发goroutine数量
	sem := make(chan struct{}, 26) // 限制并发数为10

	for _, id := range arrIds {
		for _, deviceId := range arrDeviceId {
			wg.Add(1)
			go func(id, deviceId string) {
				defer wg.Done()

				// 控制并发数
				sem <- struct{}{}
				defer func() { <-sem }()

				err := cameraFunc.DownLoadCameraJpgByFtp(id, deviceId, fileType)
				if err != nil {
					mu.Lock()
					arrFail = append(arrFail, fmt.Sprintf("%s_%s-error-%s", id, deviceId, err.Error()))
					mu.Unlock()
				}
			}(id, deviceId)
		}
	}

	// 等待所有goroutine完成
	wg.Wait()	
	// 所有下载成功
	response.SusJson(true, r, "下载成功",arrFail)
}