package main

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

	"powerwatts/internal/config"
	"powerwatts/internal/server"
	"powerwatts/internal/store"
)

func main() {
	secret := os.Getenv("WRITE_SECRET")
	addr := os.Getenv("ADDR")
	chartMax := 0

	if cfg, err := config.Load("config.json"); err != nil {
		if !errors.Is(err, os.ErrNotExist) {
			log.Fatalf("load config: %v", err)
		}
	} else {
		if secret == "" {
			secret = cfg.WriteSecret
		}
		if addr == "" {
			addr = cfg.Addr
		}
		if cfg.ChartMaxWatts > 0 {
			chartMax = cfg.ChartMaxWatts
		}
	}

	if secret == "" {
		log.Fatal("WRITE_SECRET is required")
	}
	if addr == "" {
		addr = ":8080"
	}

	app := server.New(secret, chartMax, &store.Store{}, embeddedStatic)
	log.Printf("listening on %s", addr)
	log.Fatal(http.ListenAndServe(addr, app.Routes()))
}