package utils

import (
	"fmt"
	"github.com/fatih/color"
	"github.com/gin-gonic/gin"
	"net/http"
	"time"
)

func CORSMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		// 设置允许访问的域
		c.Writer.Header().Set("Access-Control-Allow-Origin", "*")
		// 是否允许携带用户凭证
		c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")
		// 允许的自定义请求头
		c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization, X-Requested-With, X-CSRF-Token, Accept, Origin")
		// 允许的HTTP方法
		c.Writer.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, PATCH")

		// 处理预检请求
		if c.Request.Method == "OPTIONS" {
			c.AbortWithStatus(http.StatusOK)
			return
		}

		// 继续处理非预检请求
		c.Next()
	}
}

func CustomLogger() gin.HandlerFunc {
	return func(c *gin.Context) {
		// 获取开始时间
		start := time.Now()

		// 处理请求
		c.Next()

		// 获取状态码、耗时、客户端IP、方法、路径
		statusCode := c.Writer.Status()
		latency := time.Since(start)
		clientIP := c.ClientIP()
		method := c.Request.Method
		path := c.Request.URL.Path

		// 颜色设置
		statusColor := color.New(color.FgGreen).SprintFunc()
		if statusCode >= 400 && statusCode < 500 {
			statusColor = color.New(color.FgYellow).SprintFunc()
		} else if statusCode >= 500 {
			statusColor = color.New(color.FgRed).SprintFunc()
		}

		methodColor := color.New(color.FgCyan).SprintFunc()

		// 打印彩色日志
		fmt.Printf("[GIN] %v | %s | %s | %13v | %s | %s\n",
			time.Now().Format("2006/01/02 - 15:04:05"),
			statusColor(statusCode),
			clientIP,
			latency,
			methodColor(method),
			path,
		)
	}
}
func NotFoundHandler(c *gin.Context) {
	c.JSON(http.StatusNotFound, gin.H{"code": 404, "msg": "无效路径！"})
}
func NotMethodHandler(c *gin.Context) {
	c.JSON(http.StatusMethodNotAllowed, gin.H{"code": 404, "msg": "请求方法错误！"})
}