package router

import (
	"demo/share"
	"errors"
	"fmt"
	"github.com/gin-gonic/gin"
	"github.com/spf13/cast"
	"os"
	"strings"
	"time"
)

var (
	uploadFileKey = "upload.bat-key"
	filepath      = "./file/resources/"
)

func FileRouter(engine *gin.RouterGroup) {
	//文件静态资源，可以直接访问静态资源文件
	user := engine.Group("/file")
	{
		//文章上传
		//user.POST("/upload", uploadHandler)
		PushRouter(user, "POST", "/upload", uploadHandler)
		PushRouter(user, "POST", "/upload/type", UploadHandlerByType)
		PushRouter(user, "PUT", "", DeleteFile)
	}
}

// 文件上传
func uploadHandler(c *gin.Context) {
	header, err := c.FormFile("file")
	fmt.Println("header", header.Size)
	if err != nil {
		c.JSON(200, CreateResultError(400, "上传错误"))
		return
	}
	fmt.Println("header", header.Size)
	//dst := header.Filename
	// gin 简单做了封装,拷贝了文件流
	//if err := c.SaveUploadedFile(header, dst); err != nil {
	//	c.JSON(200, CreateResultError(400, "上传错误"))
	//	return
	//}
	//上传到的路径
	//path := 'resource/public/uploads/20060102150405test.xlsx'
	header.Filename = fmt.Sprintf("%s%s", time.Now().Format("20060102150405"), header.Filename) // 文件名格式 自己可以改 建议保证唯一性
	path := filepath + header.Filename                                                          //路径+文件名上传

	// 上传文件到指定的目录
	err = c.SaveUploadedFile(header, path)
	if err != nil {
		err = errors.New(fmt.Sprintf("上传失败，%v", err))
		return
	}
	c.JSON(200, CreateResultData(map[string]interface{}{
		"url": "/api/static/" + header.Filename,
	}))
}
func UploadHandlerByType(c *gin.Context) {
	header, _ := c.FormFile("file")
	if header != nil {
		uploadHandler(c)
		return
	}
	header, _ = c.FormFile("image")
	if header != nil {
		//大于2M
		if header.Size > 1024*1024*2 {
			c.JSON(200, CreateResultError(400, "图片大小不能超过2M"))
			return
		}
		l := len(header.Filename)
		if strings.LastIndex(header.Filename, ".png") == l-4 ||
			strings.LastIndex(header.Filename, ".jpg") == l-4 ||
			strings.LastIndex(header.Filename, ".jpeg") == l-5 ||
			strings.LastIndex(header.Filename, ".gif") == l-4 {

			header.Filename = fmt.Sprintf("%s%s", time.Now().Format("20060102150405"), header.Filename) // 文件名格式 自己可以改 建议保证唯一性
			path := filepath + "image/" + header.Filename                                               //路径+文件名上传

			// 上传文件到指定的目录
			err := c.SaveUploadedFile(header, path)
			if err != nil {
				err = errors.New(fmt.Sprintf("上传失败，%v", err))
				return
			}
			data := CreateResultData(map[string]interface{}{
				"url": "/api/static/image/" + header.Filename,
			})
			data["errno"] = 0
			c.JSON(200, data)
		} else {
			c.JSON(200, CreateResultError(400, "图片格式错误"))
		}
		return
	}
	header, _ = c.FormFile("video")
	if header != nil {
		if header.Size > 1024*1024*40 {
			c.JSON(200, CreateResultError(400, "视频大小不能超过40M"))
			return
		}
		l := len(header.Filename)
		if strings.LastIndex(header.Filename, ".mp4") == l-4 {
			header.Filename = fmt.Sprintf("%s%s", time.Now().Format("20060102150405"), header.Filename) // 文件名格式 自己可以改 建议保证唯一性
			path := filepath + "video/" + header.Filename                                               //路径+文件名上传
			// 上传文件到指定的目录
			err := c.SaveUploadedFile(header, path)
			if err != nil {
				err = errors.New(fmt.Sprintf("上传失败，%v", err))
				return
			}
			data := CreateResultData(map[string]interface{}{
				"url": "/api/static/video/" + header.Filename,
			})
			data["errno"] = 0
			c.JSON(200, data)
		} else {
			c.JSON(200, CreateResultError(400, "视频格式错误"))
		}
		return
	}
}

// DeleteFile 文件上传
func DeleteFile(c *gin.Context) {
	data := share.GetJsonAnyParam(c)
	fileUrl, _ := data("fileUrl")

	url := cast.ToString(fileUrl)

	if strings.Index(url, "/api/static/") != 0 {
		c.JSON(200, CreateResultError(400, "文件路径错误"))
	}
	url = strings.Replace(url, "/api/static/", "file/resources/", 1)

	s, err := os.Stat(url)
	if os.IsNotExist(err) {
		c.JSON(200, CreateResultError(400, "文件不存在"))
		return
	}
	if s.IsDir() {
		c.JSON(200, CreateResultError(400, "路径不存在"))
		return
	}
	err = os.Remove(url)
	if err != nil {
		c.JSON(200, CreateResultError(400, "删除失败"))
		return
	}
	c.JSON(200, CreateResult())
}