package router

import (
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"

	"github.com/wangjia/jiu/backend/config"
	"github.com/wangjia/jiu/backend/internal/handler"
	"github.com/wangjia/jiu/backend/internal/middleware"
	"github.com/wangjia/jiu/backend/internal/service"
)

func Setup(r *gin.Engine, db *gorm.DB) {
	// 服务层
	authSvc := service.NewAuthService(db)
	licenseSvc := service.NewLicenseService(db)
	stockSvc := service.NewStockService(db)
	paySvc := service.NewPayService(db, config.C.Pay.BaseURL, config.C.Pay.Secret, config.C.Pay.ReturnURL)
	service.StartPayReconcile(paySvc) // 查单兜底（PAY_SECRET 未配置时空转不启动）

	// 处理器
	authH := handler.NewAuthHandler(authSvc, licenseSvc)
	sessionH := handler.NewSessionHandler(authSvc)
	licenseH := handler.NewLicenseHandler(licenseSvc)
	payH := handler.NewPayHandler(paySvc)
	productH := handler.NewProductHandler(db)
	warehouseH := handler.NewWarehouseHandler(db)
	partnerH := handler.NewPartnerHandler(db)
	stockInH := handler.NewStockInHandler(db, stockSvc)
	stockOutH := handler.NewStockOutHandler(db, stockSvc)
	inventoryH := handler.NewInventoryHandler(db)
	importH := handler.NewImportHandler(db)
	userH := handler.NewUserHandler(db)
	productOptH := handler.NewProductOptionHandler(db)
	productAttrH := handler.NewProductAttrHandler(db)
	productImageH := handler.NewProductImageHandler(db)
	financeH := handler.NewFinanceHandler(db)
	numberRuleH := handler.NewNumberRuleHandler(db)
	publicH := handler.NewPublicHandler(db)
	adminH := handler.NewAdminHandler(db)
	shopH := handler.NewShopHandler(db)
	errorReportH := handler.NewErrorReportHandler(db)
	feedbackH := handler.NewFeedbackHandler(db)

	// 健康检查（无需认证，用于前端连通性探测）
	r.GET("/health", func(c *gin.Context) {
		c.JSON(200, gin.H{"status": "ok"})
	})

	// 版本信息（无需认证，用于客户端更新检查）
	r.GET("/version", handler.GetVersion)

	// 限流维度（按真实客户端 IP，依赖 main.go 的 SetTrustedProxies）。
	// 防爆破/防刷写/防爬：未鉴权接口逐条挂 per-IP 限流，公开商品列表最紧。
	rl := config.C.RateLimit
	publicReadIP := middleware.RateLimitByIP(middleware.PerMinute(rl.PublicReadPerMin), rl.PublicReadPerMin)
	shopListIP := middleware.RateLimitByIP(middleware.PerMinute(rl.ShopListPerMin), rl.ShopListPerMin)
	loginIP := middleware.RateLimitByIP(middleware.PerMinute(rl.LoginPerMin), rl.LoginPerMin)
	refreshIP := middleware.RateLimitByIP(middleware.PerMinute(rl.RefreshPerMin), rl.RefreshPerMin)
	registerIP := middleware.RateLimitByIP(middleware.PerMinute(rl.RegisterPerMin), rl.RegisterPerMin)
	errorsIP := middleware.RateLimitByIP(middleware.PerMinute(rl.ErrorsPerMin), rl.ErrorsPerMin)

	// 公开商品详情页（注入 OG 标签的 Flutter index.html，供社交分享爬虫读取）
	r.GET("/product/:public_id", publicReadIP, publicH.ProductPage)

	v1 := r.Group("/api/v1")

	// 公开路由（无需登录）：登录/刷新按 IP 限流（与 service 层失败锁定互补）
	auth := v1.Group("/auth")
	{
		auth.POST("/login", loginIP, authH.Login)
		auth.POST("/refresh", refreshIP, authH.Refresh)
	}

	// 公开接口（无需登录）：读接口防爬、写接口防刷
	public := v1.Group("/public")
	{
		public.GET("/products/:public_id", publicReadIP, publicH.GetProduct)
		public.GET("/shops/:shop_code/products", shopListIP, publicH.ListShopProducts)
		public.GET("/release", publicReadIP, publicH.GetRelease)
		public.POST("/errors", errorsIP, errorReportH.Submit)
		public.POST("/register", registerIP, authH.Register)
	}

	// pay 支付成功 webhook（公开路由，HMAC 验签在 handler 内；按 IP 限流防噪）
	v1.POST("/pay/callback", publicReadIP, payH.Callback)

	// 需要 JWT 的基础路由组
	api := v1.Group("")
	api.Use(middleware.JWT(db))
	// 每店限流（按 shop_id，挂在 JWT 之后）：防单店打爆共享后端，保障多租户公平
	api.Use(middleware.RateLimitByShop(middleware.PerSecond(rl.ShopRPS), rl.ShopBurst))

	// 会话/在线状态（豁免 LicenseGuard：登出/心跳/在线列表在锁定期也要可用）
	{
		api.POST("/auth/logout", authH.Logout)
		api.POST("/auth/ping", authH.Ping)
		// 在线会话列表：所有登录用户只读
		api.GET("/sessions", sessionH.List)
		// 强制下线：仅 admin/superadmin
		api.DELETE("/sessions/:id", middleware.AdminOnly(), sessionH.ForceLogout)
	}

	// 许可证路由：豁免 LicenseGuard（锁定时仍需查看状态和激活）
	license := api.Group("/license")
	license.Use(middleware.ReadOnly())
	{
		license.GET("/info", licenseH.Info)
		license.POST("/activate", licenseH.Activate)
		license.GET("/verify", licenseH.Verify)
		license.POST("/deactivate", licenseH.Deactivate)
		license.GET("/devices", licenseH.Devices)
		// 在线购买/续费（走 pay 收款中枢；仅管理员，handler 内判权）
		license.POST("/purchase", payH.Purchase)
		license.GET("/purchase/:out_trade_no", payH.PurchaseStatus)
		license.GET("/promo-status", payH.PromoStatus)
	}

	// 业务路由：ReadOnly + LicenseGuard（过期只读/锁定拦截写操作）
	{
		api.Use(middleware.ReadOnly(), middleware.LicenseGuard(db))

		// 商品
		products := api.Group("/products")
		{
			products.GET("", productH.List)
			products.POST("", productH.Create)
			products.POST("/find-or-create", productH.FindOrCreate)
			products.GET("/:id/detail", productH.Detail)
			products.GET("/:id/price-history", productH.PriceHistory)
			products.GET("/:id/qrcode", productH.QRCode)
			products.PUT("/:id", productH.Update)
			products.DELETE("/:id", productH.Delete)
			products.POST("/:id/images", productImageH.Upload)
			products.DELETE("/:id/images/:image_id", productImageH.Delete)
		}

		// 仓库
		warehouses := api.Group("/warehouses")
		{
			warehouses.GET("", warehouseH.List)
			warehouses.POST("", warehouseH.Create)
			warehouses.PUT("/:id", warehouseH.Update)
			warehouses.DELETE("/:id", warehouseH.Delete)
		}

		// 往来单位
		partners := api.Group("/partners")
		{
			partners.GET("", partnerH.List)
			partners.POST("", partnerH.Create)
			partners.PUT("/:id", partnerH.Update)
			partners.DELETE("/:id", partnerH.Delete)
		}

		// 入库
		stockIn := api.Group("/stock-in")
		{
			stockIn.GET("/orders", stockInH.List)
			stockIn.GET("/summary", stockInH.Summary)
			stockIn.GET("/orders/:id", stockInH.Get)
			stockIn.POST("/orders", stockInH.Create)
			stockIn.PUT("/orders/:id", stockInH.Update)
			stockIn.DELETE("/orders/:id", stockInH.Delete)
			stockIn.PUT("/orders/:id/submit", stockInH.Submit)
			stockIn.PUT("/orders/:id/approve", stockInH.Approve)
			stockIn.PUT("/orders/:id/reject", stockInH.Reject)
			// 撤回（审核中→草稿）：管理员/超管任意单，操作员限本人单（handler 内判权）
			stockIn.PUT("/orders/:id/withdraw", stockInH.Withdraw)
			// 退单（已审核单退货，库存删除+冲应付）：仅管理员/超管（service 内判权）
			stockIn.POST("/orders/:id/return", stockInH.Return)
			// 确认进价（暂估0价→真实价，前向补偿）：仅管理员/超管（service 内判权）
			stockIn.POST("/orders/:id/confirm-cost", stockInH.ConfirmCost)
		}

		// 出库
		stockOut := api.Group("/stock-out")
		{
			stockOut.GET("/orders", stockOutH.List)
			stockOut.GET("/summary", stockOutH.Summary)
			stockOut.GET("/orders/:id", stockOutH.Get)
			stockOut.POST("/orders", stockOutH.Create)
			stockOut.PUT("/orders/:id", stockOutH.Update)
			stockOut.DELETE("/orders/:id", stockOutH.Delete)
			stockOut.PUT("/orders/:id/submit", stockOutH.Submit)
			stockOut.PUT("/orders/:id/approve", stockOutH.Approve)
			stockOut.PUT("/orders/:id/reject", stockOutH.Reject)
			// 撤回（审核中→草稿）：管理员/超管任意单，操作员限本人单（handler 内判权）
			stockOut.PUT("/orders/:id/withdraw", stockOutH.Withdraw)
			// 退单（已审核单退货，库存加回+冲应收）：管理员/超管 或 本人（service 内判权）
			stockOut.POST("/orders/:id/return", stockOutH.Return)
			// 确认售价（先出后定价，重算应收）：仅管理员/超管（service 内判权）
			stockOut.POST("/orders/:id/confirm-sale", stockOutH.ConfirmSale)
		}

		// 库存
		inventory := api.Group("/inventory")
		{
			inventory.GET("", inventoryH.List)
			inventory.GET("/summary", inventoryH.Summary)
			inventory.GET("/logs", inventoryH.Logs)
			inventory.PUT("/:id/remark", inventoryH.UpdateRemark)
			inventory.POST("/checks", inventoryH.CreateCheck)
			inventory.GET("/checks/:id", inventoryH.GetCheck)
			inventory.PUT("/checks/:id/complete", inventoryH.CompleteCheck)
		}

		// 用户管理（仅管理员）
		users := api.Group("/users")
		users.Use(middleware.AdminOnly())
		{
			users.GET("", userH.List)
			users.POST("", userH.Create)
			users.PUT("/:id", userH.Update)
			users.PUT("/:id/reset-password", userH.ResetPassword)
		}

		// 财务
		finance := api.Group("/finance")
		{
			finance.GET("/records", financeH.ListRecords)
			finance.POST("/records", financeH.Create)
			finance.PUT("/records/:id/close", financeH.Close)
			finance.PUT("/records/close-by-ref", financeH.CloseByRef)
			finance.GET("/summary", financeH.Summary)
			finance.GET("/trend", financeH.Trend)
		}

		// 酒行信息
		shop := api.Group("/shop")
		{
			shop.GET("/info", shopH.GetInfo)
			shop.PUT("/info", middleware.AdminOnly(), shopH.UpdateInfo)
			shop.POST("/logo", middleware.AdminOnly(), shopH.UploadLogo)
		}

		// 意见反馈（文字 + 附图，直接提交后台）
		feedback := api.Group("/feedback")
		{
			feedback.POST("", feedbackH.Submit)
			feedback.POST("/images", feedbackH.UploadImage)
		}

		// 编号规则
		numberRules := api.Group("/number-rules")
		{
			numberRules.GET("", numberRuleH.List)
			numberRules.PUT("/:id", numberRuleH.Update)
		}

		// 导入
		imp := api.Group("/import")
		{
			imp.POST("/products", importH.ImportProducts)
			imp.POST("/partners", importH.ImportPartners)
			imp.POST("/product-names", importH.ImportProductNames)
			imp.POST("/product-series", importH.ImportProductSeries)
			imp.POST("/product-specs", importH.ImportProductSpecs)
			imp.POST("/product-codes", importH.ImportProductCodes)
			imp.POST("/stock-in", importH.ImportStockIn)
			imp.POST("/stock-out", importH.ImportStockOut)
			imp.POST("/inventory", importH.ImportInventory)
		}

		// 基础数据选项（名称/系列/规格）
		opts := api.Group("/product-options")
		{
			opts.GET("/names", productOptH.ListNames)
			opts.POST("/names", productOptH.CreateName)
			opts.PUT("/names/:id", productOptH.UpdateName)
			opts.DELETE("/names/:id", productOptH.DeleteName)

			opts.GET("/series", productOptH.ListSeries)
			opts.POST("/series", productOptH.CreateSeries)
			opts.PUT("/series/:id", productOptH.UpdateSeries)
			opts.DELETE("/series/:id", productOptH.DeleteSeries)

			opts.GET("/specs", productOptH.ListSpecs)
			opts.POST("/specs", productOptH.CreateSpec)
			opts.PUT("/specs/:id", productOptH.UpdateSpec)
			opts.DELETE("/specs/:id", productOptH.DeleteSpec)

			// 香型 / 分类字典（ProductCategory）
			opts.GET("/categories", productOptH.ListCategories)
			opts.POST("/categories", productOptH.CreateCategory)
			opts.PUT("/categories/:id", productOptH.UpdateCategory)
			opts.DELETE("/categories/:id", productOptH.DeleteCategory)

			// 商品属性字典（产地/保质期/储存方式/描述文档）
			opts.GET("/origins", productAttrH.ListOrigins)
			opts.POST("/origins", productAttrH.CreateOrigin)
			opts.PUT("/origins/:id", productAttrH.UpdateOrigin)
			opts.DELETE("/origins/:id", productAttrH.DeleteOrigin)

			opts.GET("/shelf-lives", productAttrH.ListShelfLives)
			opts.POST("/shelf-lives", productAttrH.CreateShelfLife)
			opts.PUT("/shelf-lives/:id", productAttrH.UpdateShelfLife)
			opts.DELETE("/shelf-lives/:id", productAttrH.DeleteShelfLife)

			opts.GET("/storages", productAttrH.ListStorages)
			opts.POST("/storages", productAttrH.CreateStorage)
			opts.PUT("/storages/:id", productAttrH.UpdateStorage)
			opts.DELETE("/storages/:id", productAttrH.DeleteStorage)

			opts.GET("/description-docs", productAttrH.ListDescriptionDocs)
			opts.POST("/description-docs", productAttrH.CreateDescriptionDoc)
			opts.PUT("/description-docs/:id", productAttrH.UpdateDescriptionDoc)
			opts.DELETE("/description-docs/:id", productAttrH.DeleteDescriptionDoc)
		}

		// 超级管理员专属
		superAdmin := api.Group("/admin")
		superAdmin.Use(middleware.SuperAdminOnly())
		{
			superAdmin.POST("/clear-data", adminH.ClearData)
			superAdmin.GET("/reconcile", adminH.ReconcileInventory)
			superAdmin.GET("/errors", errorReportH.List)
			superAdmin.GET("/feedback", feedbackH.List)
			superAdmin.PATCH("/feedback/:id", feedbackH.UpdateStatus)
		}
	}
}