main.go

package main

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

	"github.com/diegoholiveira/go-sample/internal/cache"
	"github.com/diegoholiveira/go-sample/internal/openweather"
	"github.com/diegoholiveira/go-sample/weather"
)

func main() {
	logger := log.New(os.Stdout, "[WEATHER] ", log.LstdFlags)

	apiKey := os.Getenv("OPENWEATHER_API_KEY")
	if apiKey == "" {
		logger.Fatal("OPENWEATHER_API_KEY environment variable is required")
	}

	httpClient := &http.Client{
		Timeout: 10 * time.Second,
	}

	cache := cache.NewInMemoryCache()

	weatherAPI := openweather.NewOpenWeatherAPI(httpClient, apiKey, logger)
	cachedAPI := openweather.NewCachedWeatherAPI(weatherAPI, cache, logger)
	handler := weather.NewWeatherHandler(cachedAPI, logger)

	mux := http.NewServeMux()
	mux.HandleFunc("/temperature", handler.GetTemperature)

	addr := ":8080"
	logger.Printf("Starting server on %s", addr)
	if err := http.ListenAndServe(addr, mux); err != nil {
		logger.Fatalf("Server failed: %v", err)
	}
}