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108 lines
4.1 KiB
108 lines
4.1 KiB
import 'package:flutter_dotenv/flutter_dotenv.dart';
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import '../core/exceptions/invalid_environment_exception.dart';
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import 'app_config.dart';
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import '../data/firebase/models/firebase_config.dart';
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/// Loads application configuration based on the specified environment.
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///
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/// This class provides a factory method to load configuration for either
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/// 'dev' or 'prod' environments. It throws [InvalidEnvironmentException]
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/// if an invalid environment is provided.
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class ConfigLoader {
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/// Private constructor to prevent instantiation.
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ConfigLoader._();
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/// Loads configuration for the specified environment.
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///
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/// Reads from .env file if available, falls back to hardcoded defaults.
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///
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/// [environment] - The environment to load ('dev' or 'prod').
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///
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/// Returns an [AppConfig] instance for the specified environment.
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///
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/// Throws [InvalidEnvironmentException] if [environment] is not 'dev' or 'prod'.
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static AppConfig load(String environment) {
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final env = environment.toLowerCase();
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// Helper to get env var or fallback to default
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// Handles case where dotenv is not initialized (e.g., in tests)
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String getEnv(String key, String defaultValue) {
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try {
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return dotenv.env[key] ?? defaultValue;
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} catch (e) {
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// dotenv not initialized, use default
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return defaultValue;
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}
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}
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// Helper to parse boolean from env
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bool getBoolEnv(String key, bool defaultValue) {
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try {
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final value = dotenv.env[key];
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if (value == null) return defaultValue;
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return value.toLowerCase() == 'true';
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} catch (e) {
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// dotenv not initialized, use default
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return defaultValue;
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}
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}
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// Helper to parse comma-separated list from env
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List<String> getListEnv(String key, List<String> defaultValue) {
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try {
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final value = dotenv.env[key];
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if (value == null || value.isEmpty) return defaultValue;
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return value.split(',').map((s) => s.trim()).where((s) => s.isNotEmpty).toList();
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} catch (e) {
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// dotenv not initialized, use default
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return defaultValue;
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}
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}
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// Helper to create FirebaseConfig from environment variables
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FirebaseConfig createFirebaseConfig() {
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return FirebaseConfig(
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enabled: getBoolEnv('FIREBASE_ENABLED', false),
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firestoreEnabled: getBoolEnv('FIREBASE_FIRESTORE_ENABLED', true),
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storageEnabled: getBoolEnv('FIREBASE_STORAGE_ENABLED', true),
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authEnabled: getBoolEnv('FIREBASE_AUTH_ENABLED', true),
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messagingEnabled: getBoolEnv('FIREBASE_MESSAGING_ENABLED', true),
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analyticsEnabled: getBoolEnv('FIREBASE_ANALYTICS_ENABLED', true),
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);
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}
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switch (env) {
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case 'dev':
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return AppConfig(
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apiBaseUrl: getEnv('API_BASE_URL_DEV', 'https://api-dev.example.com'),
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enableLogging: getBoolEnv('ENABLE_LOGGING_DEV', true),
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immichBaseUrl: getEnv('IMMICH_BASE_URL', 'https://photos.satoshinakamoto.win'),
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immichApiKey: getEnv('IMMICH_API_KEY_DEV', 'your-dev-api-key-here'),
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immichEnabled: getBoolEnv('IMMICH_ENABLE', true),
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blossomServer: getEnv('BLOSSOM_SERVER', 'https://media.based21.com'),
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nostrRelays: getListEnv('NOSTR_RELAYS_DEV', [
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'wss://nostrum.satoshinakamoto.win',
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'wss://nos.lol',
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]),
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firebaseConfig: createFirebaseConfig(),
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);
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case 'prod':
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return AppConfig(
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apiBaseUrl: getEnv('API_BASE_URL_PROD', 'https://api.example.com'),
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enableLogging: getBoolEnv('ENABLE_LOGGING_PROD', false),
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immichBaseUrl: getEnv('IMMICH_BASE_URL', 'https://photos.satoshinakamoto.win'),
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immichApiKey: getEnv('IMMICH_API_KEY_PROD', 'your-prod-api-key-here'),
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immichEnabled: getBoolEnv('IMMICH_ENABLE', true),
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blossomServer: getEnv('BLOSSOM_SERVER', 'https://media.based21.com'),
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nostrRelays: getListEnv('NOSTR_RELAYS_PROD', [
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'wss://relay.damus.io',
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]),
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firebaseConfig: createFirebaseConfig(),
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);
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default:
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throw InvalidEnvironmentException(environment);
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}
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}
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}
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