package main

import (
	"log"
	"net/http"
	"os"
	"strings"

	"github.com/gin-gonic/gin"
	"github.com/niangaodev/art-code/config"
	"github.com/niangaodev/art-code/handlers"
	"github.com/niangaodev/art-code/middleware"
)

func main() {
	// 初始化数据库连接
	config.InitDB()
	defer config.CloseDB()

	// 创建Gin引擎
	router := gin.Default()

	// 配置CORS
	router.Use(func(c *gin.Context) {
		// 获取允许的域名，优先从环境变量获取，否则使用默认值
		allowedOrigins := os.Getenv("ALLOWED_ORIGINS")
		if allowedOrigins == "" {
			allowedOrigins = "http://localhost:5173,http://localhost:3000" // 开发环境默认值
		}

		// 检查请求来源是否在允许列表中
		requestOrigin := c.Request.Header.Get("Origin")
		if requestOrigin != "" {
			// 简单的CORS origin检查
			for _, origin := range strings.Split(allowedOrigins, ",") {
				if strings.TrimSpace(origin) == requestOrigin {
					c.Writer.Header().Set("Access-Control-Allow-Origin", requestOrigin)
					break
				}
			}
		}

		c.Writer.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
		c.Writer.Header().Set("Access-Control-Allow-Headers", "Origin, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
		c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")

		if c.Request.Method == "OPTIONS" {
			c.AbortWithStatus(http.StatusNoContent)
			return
		}

		c.Next()
	})

	// API路由组
	api := router.Group("/api")
	{
		// 作品路由
		api.GET("/works", handlers.GetWorks)
		api.GET("/works/:id", handlers.GetWork)

		// 博客路由
		api.GET("/posts", handlers.GetPosts)
		api.GET("/posts/:id", handlers.GetPost)

		// 代码片段路由
		api.GET("/snippets", handlers.GetSnippets)
		api.GET("/snippets/:id", handlers.GetSnippet)

		// 标签路由
		api.GET("/tags", handlers.GetTags)
		api.GET("/tags/:id", handlers.GetTag)
		api.GET("/tags/:id/posts", handlers.GetPostsByTagID)

		// 代码执行路由
		api.POST("/run", handlers.RunCode)
	}

	// 管理员API路由组
	admin := router.Group("/api/admin")
	{
		// 登录路由（不需要认证）
		admin.POST("/login", handlers.AdminLogin)

		// 需要认证的路由
		authAdmin := admin.Group("/")
		authAdmin.Use(middleware.AuthMiddleware(), middleware.OperationLogMiddleware())
		{
			// 用户管理
			authAdmin.GET("/users", middleware.PermissionMiddleware("users", "read"), handlers.AdminGetUsers)
			authAdmin.GET("/users/:id", middleware.PermissionMiddleware("users", "read"), handlers.AdminGetUser)
			authAdmin.POST("/users", middleware.PermissionMiddleware("users", "create"), handlers.AdminCreateUser)
			authAdmin.PUT("/users/:id", middleware.PermissionMiddleware("users", "update"), handlers.AdminUpdateUser)
			authAdmin.DELETE("/users/:id", middleware.PermissionMiddleware("users", "delete"), handlers.AdminDeleteUser)

			// 角色管理
			authAdmin.GET("/roles", middleware.PermissionMiddleware("roles", "read"), handlers.AdminGetRoles)
			authAdmin.POST("/roles", middleware.PermissionMiddleware("roles", "create"), handlers.AdminCreateRole)
			authAdmin.PUT("/roles/:id", middleware.PermissionMiddleware("roles", "update"), handlers.AdminUpdateRole)
			authAdmin.DELETE("/roles/:id", middleware.PermissionMiddleware("roles", "delete"), handlers.AdminDeleteRole)

			// 权限管理
			authAdmin.GET("/permissions", middleware.PermissionMiddleware("roles", "read"), handlers.AdminGetPermissions)
			authAdmin.PUT("/roles/:id/permissions", middleware.PermissionMiddleware("roles", "update"), handlers.AdminUpdateRolePermissions)

			// 作品管理
			authAdmin.GET("/works", middleware.PermissionMiddleware("works", "read"), handlers.AdminGetWorks)
			authAdmin.POST("/works", middleware.PermissionMiddleware("works", "create"), handlers.AdminCreateWork)
			authAdmin.PUT("/works/:id", middleware.PermissionMiddleware("works", "update"), handlers.AdminUpdateWork)
			authAdmin.DELETE("/works/:id", middleware.PermissionMiddleware("works", "delete"), handlers.AdminDeleteWork)

			// 代码片段管理
			authAdmin.GET("/snippets", middleware.PermissionMiddleware("snippets", "read"), handlers.AdminGetSnippets)
			authAdmin.POST("/snippets", middleware.PermissionMiddleware("snippets", "create"), handlers.AdminCreateSnippet)
			authAdmin.PUT("/snippets/:id", middleware.PermissionMiddleware("snippets", "update"), handlers.AdminUpdateSnippet)
			authAdmin.DELETE("/snippets/:id", middleware.PermissionMiddleware("snippets", "delete"), handlers.AdminDeleteSnippet)

			// 系统配置管理
			authAdmin.GET("/settings", middleware.PermissionMiddleware("settings", "read"), handlers.AdminGetSettings)
			authAdmin.POST("/settings", middleware.PermissionMiddleware("settings", "create"), handlers.AdminCreateSetting)
			authAdmin.PUT("/settings", middleware.PermissionMiddleware("settings", "update"), handlers.AdminUpdateSetting)
			authAdmin.DELETE("/settings/:key", middleware.PermissionMiddleware("settings", "delete"), handlers.AdminDeleteSetting)

			// 文章管理
			authAdmin.GET("/posts", middleware.PermissionMiddleware("posts", "read"), handlers.AdminGetPosts)
			authAdmin.POST("/posts", middleware.PermissionMiddleware("posts", "create"), handlers.AdminCreatePost)
			authAdmin.PUT("/posts/:id", middleware.PermissionMiddleware("posts", "update"), handlers.AdminUpdatePost)
			authAdmin.DELETE("/posts/:id", middleware.PermissionMiddleware("posts", "delete"), handlers.AdminDeletePost)

			// 文章历史记录
			authAdmin.GET("/posts/:id/history", middleware.PermissionMiddleware("posts", "read"), handlers.AdminGetPostHistory)
			authAdmin.GET("/posts/:id/history/:version", middleware.PermissionMiddleware("posts", "read"), handlers.AdminGetPostHistoryByVersion)

			// 操作日志管理
			authAdmin.GET("/operation-logs", middleware.PermissionMiddleware("operation_logs", "read"), handlers.AdminGetOperationLogs)

			// 仪表盘数据
			authAdmin.GET("/dashboard/stats", middleware.PermissionMiddleware("dashboard", "read"), handlers.AdminGetDashboardStats)
			authAdmin.GET("/dashboard/activities", middleware.PermissionMiddleware("dashboard", "read"), handlers.AdminGetRecentActivities)

			// 标签管理
			authAdmin.GET("/tags", middleware.PermissionMiddleware("tags", "read"), handlers.AdminGetTags)
			authAdmin.POST("/tags", middleware.PermissionMiddleware("tags", "create"), handlers.AdminCreateTag)
			authAdmin.PUT("/tags/:id", middleware.PermissionMiddleware("tags", "update"), handlers.AdminUpdateTag)
			authAdmin.DELETE("/tags/:id", middleware.PermissionMiddleware("tags", "delete"), handlers.AdminDeleteTag)
		}
	}

	// 启动服务器
	log.Println("Server running on http://localhost:8081")
	if err := router.Run(":8081"); err != nil {
		log.Fatalf("Failed to start server: %v", err)
	}
}