runable

lib/core/database/database_initializer.dart

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+import 'package:retail/core/database/hive_database.dart';
+import 'package:retail/core/database/seed_data.dart';
+
+/// Database initialization and seeding utility
+class DatabaseInitializer {
+  final HiveDatabase _database;
+
+  DatabaseInitializer(this._database);
+
+  /// Initialize database and seed with sample data if empty
+  Future<void> initialize({bool seedIfEmpty = true}) async {
+    // Initialize Hive
+    await _database.init();
+
+    // Seed data if boxes are empty and seeding is enabled
+    if (seedIfEmpty) {
+      await _seedIfEmpty();
+    }
+  }
+
+  /// Seed database with sample data if empty
+  Future<void> _seedIfEmpty() async {
+    final productsBox = _database.productsBox;
+    final categoriesBox = _database.categoriesBox;
+
+    // Check if database is empty
+    if (productsBox.isEmpty && categoriesBox.isEmpty) {
+      await seedDatabase(forceReseed: false);
+    }
+  }
+
+  /// Seed database with sample data
+  Future<void> seedDatabase({bool forceReseed = false}) async {
+    final productsBox = _database.productsBox;
+    final categoriesBox = _database.categoriesBox;
+
+    // Clear existing data if force reseed
+    if (forceReseed) {
+      await productsBox.clear();
+      await categoriesBox.clear();
+    }
+
+    // Only seed if boxes are empty
+    if (productsBox.isEmpty && categoriesBox.isEmpty) {
+      // Generate and save categories
+      final categories = SeedData.generateCategories();
+      final categoriesMap = {
+        for (var category in categories) category.id: category
+      };
+      await categoriesBox.putAll(categoriesMap);
+
+      // Generate and save products
+      final products = SeedData.generateProducts();
+      final productsMap = {
+        for (var product in products) product.id: product
+      };
+      await productsBox.putAll(productsMap);
+
+      // Update category product counts
+      await _updateCategoryProductCounts();
+    }
+  }
+
+  /// Update product counts for all categories
+  Future<void> _updateCategoryProductCounts() async {
+    final productsBox = _database.productsBox;
+    final categoriesBox = _database.categoriesBox;
+
+    // Count products per category
+    final productCounts = <String, int>{};
+    for (var product in productsBox.values) {
+      productCounts[product.categoryId] =
+          (productCounts[product.categoryId] ?? 0) + 1;
+    }
+
+    // Update category product counts
+    for (var category in categoriesBox.values) {
+      final count = productCounts[category.id] ?? 0;
+      if (category.productCount != count) {
+        final updated = category.copyWith(productCount: count);
+        await categoriesBox.put(category.id, updated);
+      }
+    }
+  }
+
+  /// Reset database (clear all data and reseed)
+  Future<void> resetDatabase() async {
+    await _database.clearAllData();
+    await seedDatabase(forceReseed: true);
+  }
+
+  /// Get database statistics
+  Map<String, dynamic> getDatabaseStats() {
+    return _database.getStatistics();
+  }
+
+  /// Compact database (optimize storage)
+  Future<void> compactDatabase() async {
+    await _database.compactAll();
+  }
+}