package Api

import (
	"encoding/base64"
	"fmt"
	"github.com/aarongao/tools"
	"github.com/gin-gonic/gin"
	"io/ioutil"
	"path"
	"strconv"
	"strings"
	"time"
)

// @Title 上传文件
// @Description 上传
// @Accept  json
// @Produce  json
// @Param   file     1    file     true        "文件"
// @Success 200 {object} tools.ResponseSeccess "{"errcode":0,"result":"图片地址"}"
// @Failure 500 {object} tools.ResponseError "{"errcode":1,"errmsg":"错误原因"}"
// @Router /Upload? [post]
func Upload(c *gin.Context) {
	c.Header("Access-Control-Allow-Origin", c.Request.Header.Get("Origin"))
	c.Header("Access-Control-Allow-Credentials", "true")

	file, err := c.FormFile("file")
	if err != nil {
		c.JSON(200, tools.ResponseError{
			1,
			"a Bad request",
		})
		return
	}

	fileName := file.Filename
	fileExt := path.Ext(fileName)
	filePath := "Upload/" + strconv.Itoa(int(time.Now().UnixNano())) + fileExt

	if err := c.SaveUploadedFile(file, filePath); err != nil {
		fmt.Println(err)
		c.JSON(200, tools.ResponseError{
			1,
			"upload file err",
		})
		return
	}
	c.JSON(200, tools.ResponseSeccess{
		0,
		"/" + filePath,
	})
}

// @Title 上传文件BASE64
// @Description 上传文件BASE64
// @Accept  json
// @Produce  json
// @Param   file     1    file     true        "文件"
// @Success 200 {object} tools.ResponseSeccess "{"errcode":0,"result":"图片地址"}"
// @Failure 500 {object} tools.ResponseError "{"errcode":1,"errmsg":"错误原因"}"
// @Router /UploadBASE64? [post]
func UploadBASE64(c *gin.Context) {
	c.Header("Access-Control-Allow-Origin", c.Request.Header.Get("Origin"))
	c.Header("Access-Control-Allow-Credentials", "true")

	base64Img := c.PostForm("base64Img")

	index := strings.Index(base64Img, ",")
	base64Img = base64Img[index+1:]
	dist, _ := base64.StdEncoding.DecodeString(base64Img)

	fileExt := ".jpg"
	filePath := "Upload/" + strconv.Itoa(int(time.Now().UnixNano())) + fileExt

	err := ioutil.WriteFile(filePath, []byte(dist), 0666) //buffer输出到jpg文件中（不做处理，直接写到文件）
	if err != nil {
		fmt.Println(err)
		c.JSON(200, tools.ResponseError{
			1,
			"upload file err",
		})
		return
	}
	c.JSON(200, tools.ResponseSeccess{
		0,
		"/" + filePath,
	})
}