package main

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

	"metrics-collector/internal/api"
	"metrics-collector/ui"
)

func main() {
	port := os.Getenv("PORT")
	if port == "" {
		port = "8091"
	}

	srv := api.NewServer()

	mux := http.NewServeMux()
	mux.HandleFunc("/health", func(w http.ResponseWriter, _ *http.Request) {
		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
		_, _ = w.Write([]byte("ok\n"))
	})
	mux.HandleFunc("/metrics", srv.HandleMetrics)
	// ⛔ /cron/metrics — внешний путь через ingress /cron → metrics-collector:8091.
	// ⛔ НЕ УДАЛЯТЬ. Без этого маршрута UI на /cron не получает данные.
	mux.HandleFunc("/cron/metrics", srv.HandleMetrics)
	mux.Handle("/", ui.Handler())

	httpSrv := &http.Server{
		Addr:         ":" + port,
		Handler:      mux,
		ReadTimeout:  15 * time.Second,
		WriteTimeout: 15 * time.Second,
	}

	log.Printf("metrics-collector listening on :%s", port)
	if err := httpSrv.ListenAndServe(); err != nil {
		log.Fatalf("listen: %v", err)
	}
}