package api

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

	"veza-backend-api/internal/core/subscription"
	"veza-backend-api/internal/handlers"
	"veza-backend-api/internal/services/hyperswitch"
)

// setupSubscriptionRoutes configures routes for subscription plans management (v0.12.1).
//
// v1.0.9 item G — when Hyperswitch is configured, the subscription
// service is built with a PaymentProvider. Without it, paid-plan
// subscribe attempts fail with HTTP 503 "payment provider not
// configured" (replaces the v1.0.6.2 silent fantôme creation).
func (r *APIRouter) setupSubscriptionRoutes(router *gin.RouterGroup) {
	opts := []subscription.ServiceOption{}
	if r.config.HyperswitchEnabled && r.config.HyperswitchAPIKey != "" && r.config.HyperswitchURL != "" {
		hsClient := hyperswitch.NewClient(r.config.HyperswitchURL, r.config.HyperswitchAPIKey)
		hsProvider := hyperswitch.NewProvider(hsClient)
		opts = append(opts, subscription.WithPaymentProvider(hsProvider))
	}
	svc := subscription.NewService(r.db.GormDB, r.logger, opts...)
	handler := handlers.NewSubscriptionHandler(svc, r.logger)

	group := router.Group("/subscriptions")

	// Public: list available plans
	group.GET("/plans", handler.ListPlans)
	group.GET("/plans/:id", handler.GetPlan)

	// Protected: user subscription management
	if r.config.AuthMiddleware != nil {
		protected := group.Group("")
		protected.Use(r.config.AuthMiddleware.RequireAuth())
		r.applyCSRFProtection(protected)

		protected.GET("/me", handler.GetMySubscription)
		protected.POST("/subscribe", handler.Subscribe)
		protected.POST("/cancel", handler.CancelSubscription)
		protected.POST("/reactivate", handler.ReactivateSubscription)
		protected.PUT("/billing-cycle", handler.ChangeBillingCycle)
		protected.GET("/invoices", handler.GetInvoices)
		protected.GET("/history", handler.GetSubscriptionHistory)
	}
}