// Package server provides HTTP endpoints for status monitoring and statistics
package server

import (
	"context"
	"net/http"
	"os"
	"time"

	"git.eeqj.de/sneak/routewatch/internal/database"
	"git.eeqj.de/sneak/routewatch/internal/logger"
	"git.eeqj.de/sneak/routewatch/internal/streamer"
	"github.com/go-chi/chi/v5"
)

// Server provides HTTP endpoints for status monitoring
type Server struct {
	router   *chi.Mux
	db       database.Store
	streamer *streamer.Streamer
	logger   *logger.Logger
	srv      *http.Server
}

// New creates a new HTTP server
func New(db database.Store, streamer *streamer.Streamer, logger *logger.Logger) *Server {
	s := &Server{
		db:       db,
		streamer: streamer,
		logger:   logger,
	}

	s.setupRoutes()

	return s
}

// Start starts the HTTP server
func (s *Server) Start() error {
	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
	}

	const readHeaderTimeout = 10 * time.Second
	s.srv = &http.Server{
		Addr:              ":" + port,
		Handler:           s.router,
		ReadHeaderTimeout: readHeaderTimeout,
	}

	s.logger.Info("Starting HTTP server", "port", port)

	go func() {
		if err := s.srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			s.logger.Error("HTTP server error", "error", err)
		}
	}()

	return nil
}

// Stop gracefully stops the HTTP server
func (s *Server) Stop(ctx context.Context) error {
	if s.srv == nil {
		return nil
	}

	s.logger.Info("Stopping HTTP server")

	return s.srv.Shutdown(ctx)
}