package config

import (
	"fmt"
	"os"
	"strings"
)

type Config struct {
	DatabaseURL       string
	HTTPPort          string
	DefaultServerName string
	DefaultServerHost string
	DefaultServerIP   string
	SessionCookieName string
	SessionTTLHours   int
	ACMEEmail         string
	ACMEStaging       bool
	ACMEHTTPAddr      string
	SSLStoragePath    string
	NginxSitesDir     string
	NginxReloadCmd    string
}

func Load() (*Config, error) {
	url := os.Getenv("DATABASE_URL")
	if url == "" {
		return nil, fmt.Errorf("DATABASE_URL is required")
	}

	port := os.Getenv("HTTP_PORT")
	if port == "" {
		port = "8000"
	}

	serverName := os.Getenv("DEFAULT_SERVER_NAME")
	if serverName == "" {
		serverName = "local"
	}

	serverHost := os.Getenv("DEFAULT_SERVER_HOSTNAME")
	if serverHost == "" {
		serverHost = "localhost"
	}

	serverIP := os.Getenv("DEFAULT_SERVER_IP")
	if serverIP == "" {
		serverIP = "127.0.0.1"
	}

	cookieName := os.Getenv("SESSION_COOKIE_NAME")
	if cookieName == "" {
		cookieName = "panel_session"
	}

	sslPath := os.Getenv("SSL_STORAGE_PATH")
	if sslPath == "" {
		sslPath = "/etc/ssl/panel"
	}

	return &Config{
		DatabaseURL:       url,
		HTTPPort:          port,
		DefaultServerName: serverName,
		DefaultServerHost: serverHost,
		DefaultServerIP:   serverIP,
		SessionCookieName: cookieName,
		SessionTTLHours:   168,
		ACMEEmail:         strings.TrimSpace(os.Getenv("ACME_EMAIL")),
		ACMEStaging:       os.Getenv("ACME_STAGING") == "true" || os.Getenv("ACME_STAGING") == "1",
		ACMEHTTPAddr:      strings.TrimSpace(os.Getenv("ACME_HTTP_ADDR")),
		SSLStoragePath:    sslPath,
		NginxSitesDir:     strings.TrimSpace(os.Getenv("NGINX_SITES_DIR")),
		NginxReloadCmd:    strings.TrimSpace(os.Getenv("NGINX_RELOAD_CMD")),
	}, nil
}