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fullenifulleni
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Merge pull request #29 from flutter-news-app-full-source-code/enhance_intial_admin_seeding
Enhance intial admin seeding
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‎.env.example‎

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@@ -33,3 +33,13 @@
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# Defaults to "https://api.sendgrid.com" if not set.
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# Use "https://api.eu.sendgrid.com" for EU-based accounts.
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# SENDGRID_API_URL="https://api.sendgrid.com"
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# ADMIN OVERRIDE: Sets the single administrator account for the application.
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# On server startup, the system ensures that the user with this email is the
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# one and only administrator.
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# - If no admin exists, one will be created with this email.
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# - If an admin with a DIFFERENT email exists, they will be REMOVED and
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# replaced by a new admin with this email.
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# - If an admin with this email already exists, nothing changes.
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# This provides a secure way to set or recover the admin account.
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# OVERRIDE_ADMIN_EMAIL="admin@example.com"

‎lib/src/config/environment_config.dart‎

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@@ -133,4 +133,10 @@ abstract final class EnvironmentConfig {
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///
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/// Returns `null` if the `SENDGRID_API_URL` is not set.
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static String? get sendGridApiUrl => _env['SENDGRID_API_URL'];
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/// Retrieves the override admin email from the environment, if provided.
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///
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/// This is used to set or replace the single administrator account on startup.
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/// Returns `null` if the `OVERRIDE_ADMIN_EMAIL` is not set.
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static String? get overrideAdminEmail => _env['OVERRIDE_ADMIN_EMAIL'];
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}

‎lib/src/services/database_seeding_service.dart‎

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import 'package:core/core.dart';
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import 'package:flutter_news_app_api_server_full_source_code/src/config/environment_config.dart';
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import 'package:flutter_news_app_api_server_full_source_code/src/services/mongodb_token_blacklist_service.dart';
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import 'package:flutter_news_app_api_server_full_source_code/src/services/mongodb_verification_code_storage_service.dart';
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import 'package:logging/logging.dart';
@@ -25,6 +26,7 @@ class DatabaseSeedingService {
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_log.info('Starting database seeding process...');
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await _ensureIndexes();
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await _seedOverrideAdminUser();
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await _seedCollection<Country>(
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collectionName: 'countries',
@@ -73,6 +75,120 @@ class DatabaseSeedingService {
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_log.info('Database seeding process completed.');
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}
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/// Ensures the single administrator account is correctly configured based on
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/// the `OVERRIDE_ADMIN_EMAIL` environment variable.
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Future<void> _seedOverrideAdminUser() async {
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_log.info('Checking for admin user override...');
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final overrideEmail = EnvironmentConfig.overrideAdminEmail;
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if (overrideEmail == null || overrideEmail.isEmpty) {
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_log.info(
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'OVERRIDE_ADMIN_EMAIL not set. Skipping admin user override.',
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);
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return;
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}
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final usersCollection = _db.collection('users');
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final existingAdmin = await usersCollection.findOne(
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where.eq('dashboardRole', DashboardUserRole.admin.name),
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);
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// Case 1: An admin exists.
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if (existingAdmin != null) {
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final existingAdminEmail = existingAdmin['email'] as String;
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// If the existing admin's email is the same as the override, do nothing.
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if (existingAdminEmail == overrideEmail) {
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_log.info(
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'Admin user with email $overrideEmail already exists and matches '
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'override. No action needed.',
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);
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return;
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}
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// If emails differ, delete the old admin and their data.
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_log.warning(
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'Found existing admin with email "$existingAdminEmail". It will be '
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'replaced by the override email "$overrideEmail".',
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);
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final oldAdminId = existingAdmin['_id'] as ObjectId;
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await _deleteUserAndData(oldAdminId);
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}
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// Case 2: No admin exists, or the old one was just deleted.
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// Create the new admin.
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_log.info('Creating admin user for email: $overrideEmail');
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final newAdminId = ObjectId();
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final newAdminUser = User(
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id: newAdminId.oid,
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email: overrideEmail,
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appRole: AppUserRole.standardUser,
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dashboardRole: DashboardUserRole.admin,
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createdAt: DateTime.now(),
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feedActionStatus: Map.fromEntries(
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FeedActionType.values.map(
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(type) =>
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MapEntry(type, const UserFeedActionStatus(isCompleted: false)),
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),
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),
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);
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await usersCollection.insertOne(
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{'_id': newAdminId, ...newAdminUser.toJson()..remove('id')},
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);
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// Create default settings and preferences for the new admin.
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await _createUserSubDocuments(newAdminId);
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_log.info('Successfully created admin user for $overrideEmail.');
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}
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/// Deletes a user and their associated sub-documents.
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Future<void> _deleteUserAndData(ObjectId userId) async {
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await _db.collection('users').deleteOne(where.eq('_id', userId));
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await _db
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.collection('user_app_settings')
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.deleteOne(where.eq('_id', userId));
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await _db
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.collection('user_content_preferences')
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.deleteOne(where.eq('_id', userId));
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_log.info('Deleted user and associated data for ID: ${userId.oid}');
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}
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/// Creates the default sub-documents (settings, preferences) for a new user.
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Future<void> _createUserSubDocuments(ObjectId userId) async {
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final defaultAppSettings = UserAppSettings(
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id: userId.oid,
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displaySettings: const DisplaySettings(
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baseTheme: AppBaseTheme.system,
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accentTheme: AppAccentTheme.defaultBlue,
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fontFamily: 'SystemDefault',
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textScaleFactor: AppTextScaleFactor.medium,
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fontWeight: AppFontWeight.regular,
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),
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language: 'en',
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feedPreferences: const FeedDisplayPreferences(
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headlineDensity: HeadlineDensity.standard,
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headlineImageStyle: HeadlineImageStyle.largeThumbnail,
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showSourceInHeadlineFeed: true,
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showPublishDateInHeadlineFeed: true,
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),
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);
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await _db.collection('user_app_settings').insertOne(
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{'_id': userId, ...defaultAppSettings.toJson()..remove('id')},
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);
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final defaultUserPreferences = UserContentPreferences(
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id: userId.oid,
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followedCountries: const [],
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followedSources: const [],
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followedTopics: const [],
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savedHeadlines: const [],
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);
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await _db.collection('user_content_preferences').insertOne(
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{'_id': userId, ...defaultUserPreferences.toJson()..remove('id')},
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);
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}
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/// Seeds a specific collection from a given list of fixture data.
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Future<void> _seedCollection<T>({
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required String collectionName,

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