package config

import (
	"log"
	"os"
	"strconv"
)

type Config struct {
	ServerAddr                   string
	DatabaseURL                  string
	OIDCIssuerURL                string
	OIDCRedirectURL              string
	OIDCClientID                 string
	OIDCClientSecret             string
	JWTSecret                    string
	NextcloudURL                 string
	NextcloudUser                string
	NextcloudPass                string
	NextcloudBase                string
	AllowedOrigins               string
	AvatarCacheDir               string
	AvatarDownloadTimeoutSeconds int
	AvatarDownloadRetries        int
}

func Load() *Config {
	cfg := &Config{
		ServerAddr:                   getEnv("SERVER_ADDR", ":8080"),
		DatabaseURL:                  os.Getenv("DATABASE_URL"),
		OIDCIssuerURL:                os.Getenv("OIDC_ISSUER_URL"),
		OIDCRedirectURL:              os.Getenv("OIDC_REDIRECT_URL"),
		OIDCClientID:                 os.Getenv("OIDC_CLIENT_ID"),
		OIDCClientSecret:             os.Getenv("OIDC_CLIENT_SECRET"),
		JWTSecret:                    os.Getenv("JWT_SECRET"),
		NextcloudURL:                 os.Getenv("NEXTCLOUD_URL"),
		NextcloudUser:                os.Getenv("NEXTCLOUD_USER"),
		NextcloudPass:                os.Getenv("NEXTCLOUD_PASSWORD"),
		NextcloudBase:                getEnv("NEXTCLOUD_BASEPATH", "/"),
		AllowedOrigins:               getEnv("ALLOWED_ORIGINS", "https://b0esche.cloud,https://www.b0esche.cloud,https://*.b0esche.cloud,http://localhost:8080"),
		AvatarCacheDir:               getEnv("AVATAR_CACHE_DIR", "/var/cache/b0esche/avatars"),
		AvatarDownloadTimeoutSeconds: getEnvInt("AVATAR_DOWNLOAD_TIMEOUT_SECONDS", 20),
		AvatarDownloadRetries:        getEnvInt("AVATAR_DOWNLOAD_RETRIES", 3),
	}
	log.Printf("[CONFIG] Nextcloud URL: %q, User: %q, BasePath: %q, AvatarCacheDir: %q, AvatarDownloadTimeoutSeconds: %d, AvatarDownloadRetries: %d\n", cfg.NextcloudURL, cfg.NextcloudUser, cfg.NextcloudBase, cfg.AvatarCacheDir, cfg.AvatarDownloadTimeoutSeconds, cfg.AvatarDownloadRetries)
	return cfg
}

func getEnv(key, defaultVal string) string {
	if val := os.Getenv(key); val != "" {
		return val
	}
	return defaultVal
}

func getEnvInt(key string, defaultVal int) int {
	if val := os.Getenv(key); val != "" {
		if i, err := strconv.Atoi(val); err == nil {
			return i
		}
	}
	return defaultVal
}