package main

import (
	"log/slog"
	"os"

	"git.dubyatp.xyz/chat-api-server/api"
	"git.dubyatp.xyz/chat-api-server/log"
	"github.com/joho/godotenv"
)

func checkEnvVars(keys []string) (bool, []string) {
	var missing []string
	for _, key := range keys {
		if _, ok := os.LookupEnv(key); !ok {
			missing = append(missing, key)
		}
	}
	return len(missing) == 0, missing
}

func main() {

	log.Logger() // initialize logger

	requiredEnvVars := []string{"SCYLLA_CLUSTER", "SCYLLA_KEYSPACE"}

	// Initialize dotenv file
	err := godotenv.Load()
	if err != nil {
		slog.Info("No .env file loaded, will try OS environment variables")
	}

	// Check if environment variables were defined by the OS before erroring out
	exists, missingVars := checkEnvVars(requiredEnvVars)
	if !exists {
		slog.Error("Missing environment variables", "missing", missingVars)
		os.Exit(1)
	}

	slog.Info("Starting the API Server...")
	api.Start()
}