category local

2025-09-20 04:36:22 +07:00
parent c12d6525fa
commit 5b980d237f
12 changed files with 3443 additions and 515 deletions
@@ -0,0 +1,285 @@
+import 'dart:developer';
+import 'package:dartz/dartz.dart';
+import 'package:enaklo_pos/data/datasources/category/category_local_datasource.dart';
+import 'package:enaklo_pos/data/datasources/category/category_remote_datasource.dart';
+import 'package:enaklo_pos/data/models/response/category_response_model.dart';
+
+class CategoryRepository {
+  static CategoryRepository? _instance;
+
+  final CategoryLocalDatasource _localDatasource;
+  final CategoryRemoteDatasource _remoteDatasource;
+
+  CategoryRepository._internal()
+      : _localDatasource = CategoryLocalDatasource.instance,
+        _remoteDatasource = CategoryRemoteDatasource();
+
+  static CategoryRepository get instance {
+    _instance ??= CategoryRepository._internal();
+    return _instance!;
+  }
+
+  // ========================================
+  // SYNC STRATEGY: REMOTE-FIRST WITH LOCAL FALLBACK
+  // ========================================
+  Future<Either<String, CategoryResponseModel>> getCategories({
+    int page = 1,
+    int limit = 10,
+    bool isActive = true,
+    String? search,
+    bool forceRemote = false,
+  }) async {
+    try {
+      log('📱 Getting categories - page: $page, isActive: $isActive, search: $search, forceRemote: $forceRemote');
+
+      // Clean expired cache
+      _localDatasource.clearExpiredCache();
+
+      // Check if we should try remote first
+      if (forceRemote || !await _localDatasource.hasCategories()) {
+        log('🌐 Attempting remote fetch first...');
+
+        final remoteResult = await _getRemoteCategories(
+          page: page,
+          limit: limit,
+          isActive: isActive,
+        );
+
+        return await remoteResult.fold(
+          (failure) async {
+            log('❌ Remote fetch failed: $failure');
+            log('📱 Falling back to local data...');
+            return _getLocalCategories(
+              page: page,
+              limit: limit,
+              isActive: isActive,
+              search: search,
+            );
+          },
+          (response) async {
+            log('✅ Remote fetch successful, syncing to local...');
+
+            // Sync remote data to local
+            if (response.data.categories.isNotEmpty) {
+              await _syncToLocal(response.data.categories,
+                  clearFirst: page == 1);
+            }
+
+            return Right(response);
+          },
+        );
+      } else {
+        log('📱 Using local data (cache available)...');
+        return _getLocalCategories(
+          page: page,
+          limit: limit,
+          isActive: isActive,
+          search: search,
+        );
+      }
+    } catch (e) {
+      log('❌ Error in getCategories: $e');
+      return Left('Gagal memuat kategori: $e');
+    }
+  }
+
+  // ========================================
+  // PURE LOCAL OPERATIONS
+  // ========================================
+  Future<Either<String, CategoryResponseModel>> _getLocalCategories({
+    int page = 1,
+    int limit = 10,
+    bool isActive = true,
+    String? search,
+  }) async {
+    try {
+      final cachedCategories = await _localDatasource.getCachedCategories(
+        page: page,
+        limit: limit,
+        isActive: isActive,
+        search: search,
+      );
+
+      final totalCount = await _localDatasource.getTotalCount(
+        isActive: isActive,
+        search: search,
+      );
+
+      final categoryData = CategoryData(
+        categories: cachedCategories,
+        totalCount: totalCount,
+        page: page,
+        limit: limit,
+        totalPages: totalCount > 0 ? (totalCount / limit).ceil() : 0,
+      );
+
+      final response = CategoryResponseModel(
+        success: true,
+        data: categoryData,
+      );
+
+      log('✅ Returned ${cachedCategories.length} local categories (${totalCount} total)');
+      return Right(response);
+    } catch (e) {
+      log('❌ Error getting local categories: $e');
+      return Left('Gagal memuat kategori dari database lokal: $e');
+    }
+  }
+
+  // ========================================
+  // REMOTE FETCH
+  // ========================================
+  Future<Either<String, CategoryResponseModel>> _getRemoteCategories({
+    int page = 1,
+    int limit = 10,
+    bool isActive = true,
+  }) async {
+    try {
+      log('🌐 Fetching categories from remote...');
+      return await _remoteDatasource.getCategories(
+        page: page,
+        limit: limit,
+        isActive: isActive,
+      );
+    } catch (e) {
+      log('❌ Remote fetch error: $e');
+      return Left('Gagal mengambil data dari server: $e');
+    }
+  }
+
+  // ========================================
+  // SYNC TO LOCAL
+  // ========================================
+  Future<void> _syncToLocal(List<CategoryModel> categories,
+      {bool clearFirst = false}) async {
+    try {
+      log('💾 Syncing ${categories.length} categories to local database...');
+      await _localDatasource.saveCategoriesBatch(categories,
+          clearFirst: clearFirst);
+      log('✅ Categories synced to local successfully');
+    } catch (e) {
+      log('❌ Error syncing categories to local: $e');
+      rethrow;
+    }
+  }
+
+  // ========================================
+  // MANUAL SYNC OPERATIONS
+  // ========================================
+  Future<Either<String, String>> syncAllCategories() async {
+    try {
+      log('🔄 Starting manual sync of all categories...');
+
+      int page = 1;
+      const limit = 50; // Higher limit for bulk sync
+      bool hasMore = true;
+      int totalSynced = 0;
+
+      // Clear local data first for fresh sync
+      await _localDatasource.clearAllCategories();
+
+      while (hasMore) {
+        log('📄 Syncing page $page...');
+
+        final result = await _remoteDatasource.getCategories(
+          page: page,
+          limit: limit,
+          isActive: true,
+        );
+
+        await result.fold(
+          (failure) async {
+            log('❌ Sync failed at page $page: $failure');
+            throw Exception(failure);
+          },
+          (response) async {
+            final categories = response.data.categories;
+
+            if (categories.isNotEmpty) {
+              await _localDatasource.saveCategoriesBatch(
+                categories,
+                clearFirst: false, // Don't clear on subsequent pages
+              );
+              totalSynced += categories.length;
+
+              // Check if we have more pages
+              hasMore = page < response.data.totalPages;
+              page++;
+
+              log('📦 Page $page synced: ${categories.length} categories');
+            } else {
+              hasMore = false;
+            }
+          },
+        );
+      }
+
+      final message = 'Berhasil sinkronisasi $totalSynced kategori';
+      log('✅ $message');
+      return Right(message);
+    } catch (e) {
+      final error = 'Gagal sinkronisasi kategori: $e';
+      log('❌ $error');
+      return Left(error);
+    }
+  }
+
+  // ========================================
+  // UTILITY METHODS
+  // ========================================
+  Future<Either<String, CategoryResponseModel>> refreshCategories({
+    bool isActive = true,
+    String? search,
+  }) async {
+    log('🔄 Refreshing categories...');
+    clearCache();
+
+    return await getCategories(
+      page: 1,
+      limit: 10,
+      isActive: isActive,
+      search: search,
+      forceRemote: true, // Force remote refresh
+    );
+  }
+
+  Future<CategoryModel?> getCategoryById(String id) async {
+    log('🔍 Getting category by ID: $id');
+    return await _localDatasource.getCategoryById(id);
+  }
+
+  Future<List<CategoryModel>> getAllCategories() async {
+    log('📋 Getting all categories for dropdown...');
+    return await _localDatasource.getAllCategories();
+  }
+
+  Future<bool> hasLocalCategories() async {
+    final hasCategories = await _localDatasource.hasCategories();
+    log('📊 Has local categories: $hasCategories');
+    return hasCategories;
+  }
+
+  Future<Map<String, dynamic>> getDatabaseStats() async {
+    final stats = await _localDatasource.getDatabaseStats();
+    log('📊 Category database stats: $stats');
+    return stats;
+  }
+
+  void clearCache() {
+    log('🧹 Clearing category cache');
+    _localDatasource.clearCache();
+  }
+
+  Future<bool> isLocalDatabaseReady() async {
+    try {
+      final stats = await getDatabaseStats();
+      final categoryCount = stats['total_categories'] ?? 0;
+      final isReady = categoryCount > 0;
+      log('🔍 Category database ready: $isReady ($categoryCount categories)');
+      return isReady;
+    } catch (e) {
+      log('❌ Error checking category database readiness: $e');
+      return false;
+    }
+  }
+}