package main

import (
	"fmt"
	web "json-gen/dist"
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/miaogaolin/gotl/common/sql2gorm/parser"
)

func main() {
	r := gin.Default()
	r.POST("/sql", func(c *gin.Context) {
		var req struct {
			Content string `json:"content"`
		}
		err := c.BindJSON(&req)
		if err != nil {
			c.String(http.StatusBadRequest, err.Error())
			return
		}
		res, err := parser.ParseSqlFormat(req.Content,
			parser.WithGormType(),
			parser.WithJsonTag(),
		)
		if err != nil {
			c.String(http.StatusInternalServerError, err.Error())
			return
		}
		c.String(http.StatusOK, string(res))
	})
	r.StaticFS("/", http.FS(web.Static))
	r.Use(Cors())
	r.Run(":8000")
}

func Cors() gin.HandlerFunc {
	return func(c *gin.Context) {
		method := c.Request.Method
		origin := c.Request.Header.Get("Origin") //请求头部
		if origin != "" {
			//接收客户端发送的origin （重要！）
			c.Writer.Header().Set("Access-Control-Allow-Origin", origin)
			//服务器支持的所有跨域请求的方法
			c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE,UPDATE")
			//允许跨域设置可以返回其他子段，可以自定义字段
			c.Header("Access-Control-Allow-Headers", "Authorization, Content-Length, X-CSRF-Token, Token,session,Accept, Origin, Host, Connection, Accept-Encoding, Accept-Language,DNT, X-CustomHeader, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type, Pragma")
			// 允许浏览器（客户端）可以解析的头部 （重要）
			c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers")
			//允许客户端传递校验信息比如 cookie (重要)
			c.Header("Access-Control-Allow-Credentials", "true")
		}

		//允许类型校验
		if method == "OPTIONS" {
			c.String(http.StatusOK, "OK!")
		}

		defer func() {
			if err := recover(); err != nil {
				fmt.Printf("Panic info is: %v", err)
			}
		}()
		c.Next()
	}
}