package api

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/openteam/server/internal/api/middleware"
	"github.com/openteam/server/internal/app"
	"github.com/openteam/server/internal/proxy"
)

// NewRouter 装配所有路由：
//   - /v1/*        代理端点（Bearer API Key，OpenAI 格式错误体）
//   - /api/v1/*    管理 API（会话 JWT）
func NewRouter(a *app.App, gw *proxy.Gateway) *gin.Engine {
	if a.Cfg.Env == "production" {
		gin.SetMode(gin.ReleaseMode)
	}
	r := gin.New()
	r.Use(gin.Logger(), gin.Recovery(), middleware.CORS())

	h := NewHandler(a)

	// --- 代理端点（对外）---
	proxyGroup := r.Group("/v1")
	{
		proxyGroup.Any("/chat/completions", gw.Auth, gw.Handle)
		proxyGroup.Any("/responses", gw.Auth, gw.Handle)
		proxyGroup.Any("/models", gw.Auth, gw.Handle)
	}
	// 未匹配的 /v1/* 返回 OpenAI 风格 404（需先认证）
	r.NoRoute(func(c *gin.Context) {
		if len(c.Request.URL.Path) >= 3 && c.Request.URL.Path[:3] == "/v1" {
			gw.Auth(c)
			if !c.IsAborted() {
				gw.Handle(c)
			}
			return
		}
		c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
	})

	// --- 管理 API ---
	api := r.Group("/api/v1")
	{
		auth := api.Group("/auth")
		{
			auth.POST("/register", h.Register)
			auth.POST("/login", h.Login)
			auth.POST("/refresh", h.Refresh)
			auth.POST("/logout", h.Logout)
			auth.GET("/me", middleware.SessionAuth(a), h.Me)
		}

		user := api.Group("", middleware.SessionAuth(a))
		{
			user.GET("/user/profile", h.UserProfile)
			user.GET("/user/balance", h.UserBalance)
			user.GET("/user/models", h.UserModels)
			user.GET("/usage/summary", h.UsageSummary)
			user.GET("/usage/stats", h.UsageStats)
			user.GET("/usage/logs", h.UsageLogs)
			user.POST("/keys", h.CreateKey)
			user.GET("/keys", h.ListKeys)
			user.PATCH("/keys/:id", h.PatchKey)
			user.DELETE("/keys/:id", h.DeleteKey)
		}

		admin := api.Group("/admin", middleware.SessionAuth(a), middleware.AdminOnly)
		{
			admin.GET("/users", h.AdminUsers)
			admin.PATCH("/users/:id", h.AdminPatchUser)
			admin.POST("/users/:id/balance", h.AdminAdjustBalance)
			admin.GET("/config", h.AdminConfig)
			admin.PUT("/config", h.AdminPutConfig)
			// 渠道/模型/用量管理（M4）；充值审核（M5 预留）
		}
	}

	r.GET("/healthz", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{"status": "ok"})
	})
	return r
}