// Package api provides HTTP routing and handlers for the chat-svc service.
package api

import (
	"git.threesix.ai/jordan/sp4-debug-1770477266/pkg/app"
	"git.threesix.ai/jordan/sp4-debug-1770477266/pkg/auth"
	"git.threesix.ai/jordan/sp4-debug-1770477266/pkg/svc"
	"git.threesix.ai/jordan/sp4-debug-1770477266/services/chat-svc/internal/api/handlers"
	"git.threesix.ai/jordan/sp4-debug-1770477266/services/chat-svc/internal/authclient"
	"git.threesix.ai/jordan/sp4-debug-1770477266/services/chat-svc/internal/config"
	"git.threesix.ai/jordan/sp4-debug-1770477266/services/chat-svc/internal/service"
	"git.threesix.ai/jordan/sp4-debug-1770477266/services/chat-svc/internal/taskqueue"
)

// RegisterRoutes registers all HTTP routes for the service.
// Routes are mounted under /api/chat-svc to match the ingress path routing.
func RegisterRoutes(application *app.App, exampleService *service.ExampleService, producer *taskqueue.Producer) {
	logger := application.Logger()
	cfg := config.Load()

	// Initialize handlers with injected services
	healthHandler := handlers.NewHealth(logger)
	exampleHandler := handlers.NewExample(exampleService, logger)
	chatHandler := handlers.NewChat(producer, logger)

	// Build and mount OpenAPI spec
	spec := NewServiceSpec()
	application.EnableDocs(spec)

	// Register API routes under /api/{service-name} to match ingress path routing.
	// The ingress routes /api/chat-svc/* to this service.
	application.Route("/api/chat-svc", func(r app.Router) {
		r.Get("/health", healthHandler.Check)

		// Public routes (no auth required)
		r.Get("/examples", app.Wrap(exampleHandler.List))
		r.Get("/examples/{id}", app.Wrap(exampleHandler.Get))

		// Protected routes (auth required when enabled)
		r.Group(func(r app.Router) {
			if cfg.AuthEnabled {
				// Use remote auth-svc validation if configured, otherwise fall back to local JWT
				if svc.ServiceConfigured("auth-svc") {
					ac, err := authclient.New(logger)
					if err != nil {
						logger.Error("failed to create auth client", "error", err)
					} else {
						r.Use(authclient.Middleware(ac))
					}
				} else {
					r.Use(auth.Middleware(auth.MiddlewareConfig{
						Validator: auth.NewJWTValidator(auth.JWTConfig{
							Secret: []byte(cfg.JWTSecret),
							Issuer: "sp4-debug-1770477266",
						}),
					}))
				}
			}

			r.Post("/examples", app.Wrap(exampleHandler.Create))
			r.Put("/examples/{id}", app.Wrap(exampleHandler.Update))
			r.Delete("/examples/{id}", app.Wrap(exampleHandler.Delete))

			// Chat endpoints (require auth, push to worker queue)
			r.Post("/send", app.Wrap(chatHandler.Send))
		})
	})
}