First Commit

2026-04-17 00:37:21 +08:00
parent f445b408a4
commit fb33d42ab1
83 changed files with 3832 additions and 2 deletions
@@ -0,0 +1,180 @@
+import 'package:http/http.dart' as http;
+import 'dart:convert';
+import 'package:intl/intl.dart';
+// import '../auth_manager.dart'; // 確保引入 AuthManager
+
+// 共用 API 常數
+//const String BASE_IP = "https://api.gex.com.tw:8033";
+//const String COMMON_API_ENDPOINT = "xapi/v2/eis_demo/orm_api_v2/2/";
+//const String COMMON_API_URL = "$BASE_IP/$COMMON_API_ENDPOINT";
+
+class GenericApiService {
+  // [修改] 移除 const COMMON_API_URL，改為方法獲取
+  static const String BASE_IP = "https://api.gex.com.tw";  // :8033
+
+  // 修改後的動態 URL 產生器，支援傳入不同的 store procedure 與回傳 dataset 數
+  String _getProcedureUrl(String endpoint, String version) {
+    // final String db = AuthManager().currentCompany ?? "demo"; //
+    final String dbAll = "eis_demo"; //
+    return "$BASE_IP/xapi/v2/$dbAll/$endpoint/$version/"; //
+  }
+
+  String _getToken() {
+    DateTime now = DateTime.now();
+
+    // 產生 ddmmyy 格式
+    // 使用 intl 套件的 DateFormat，或手動組合
+    String ddmmyy = DateFormat('ddMMyy').format(now);
+
+    // 計算 CheckSum: (yyyy + mm + dd) % 10
+    int checkSum = (now.year + now.month + now.day) % 10;
+
+    // 組合最終特殊 Token
+    String specialToken = "$ddmmyy$checkSum";
+    return specialToken;
+  }
+
+  /// 呼叫 Store Procedure 的通用方法
+  /// [T] : 目標資料模型
+  /// [procedureEndpoint] : 端點名稱 (例如: 'sp_get_channel_sales_stats')
+  /// [version] : 版本號，預設為 "2"
+  /// [params] : 傳遞給 SP 的參數 Map
+  /// [fromJson] : 將 Map 轉換為物件的工廠方法
+  Future<List<T>> fetchProcedure<T>({
+    required String procedureEndpoint,
+    String version = "2",
+    required Map<String, String> params,
+    required T Function(Map<String, dynamic>) fromJson,
+  }) async {
+    String? token = _getToken();  // await AuthManager.getToken();
+    if (token == null) throw Exception('未登入：找不到有效 Token');
+
+    final Map<String, String> body = {"token": token, ...params};
+    final String url = _getProcedureUrl(procedureEndpoint, version);
+
+    try {
+      final response = await http.post(
+        Uri.parse(url),
+        headers: {'Content-Type': 'application/x-www-form-urlencoded'},
+        body: body,
+      );
+
+      if (response.statusCode == 200) {
+        final Map<String, dynamic> responseData = json.decode(response.body);
+        final int code = responseData['code'] ?? responseData['Code'] ?? -1;
+
+        if (code == 0) {
+          final dynamic dataObject = responseData['data'];
+
+          if (dataObject is List) {
+            return dataObject.map((j) => fromJson(j as Map<String, dynamic>)).toList();
+          } else if (dataObject is Map<String, dynamic>) {
+            return [fromJson(dataObject)];
+          }
+          return []; // 數據格式不符回傳空清單
+        } else {
+          print("API 錯誤: ${responseData['msg'] ?? responseData['message']}");
+          return []; // Code 不為 0 回傳空清單
+        }
+      } else {
+        // [關鍵修正] statusCode 不為 200 時拋出異常或回傳空清單
+        throw Exception('HTTP 錯誤: ${response.statusCode}');
+      }
+    } catch (e) {
+      print("fetchProcedure 發生異常: $e");
+      rethrow; // 重新拋出異常讓呼叫端處理
+    }
+    // [關鍵修正] 確保函式末端一定有回傳值，解決截圖中的錯誤
+  }
+
+  // 以下是 orm_api
+  String _getDynamicUrl() {
+    // 從 AuthManager 獲取目前登入的公司別，若無則預設 eis_demo
+    // final String db = AuthManager().currentCompany ?? "demo";
+    final String dbAll = "eis_demo";
+    return "$BASE_IP/xapi/v2/$dbAll/orm_api_v2/2/";
+  }
+
+  /// 通用的獲取列表方法
+  /// [T] : 目標資料模型 (例如 Announcement 或 Todo)
+  /// [tableName] : 資料庫表名 (API 參數)
+  /// [pk] : 主鍵欄位名稱 (API 參數)
+  /// [queryFilter] : 查詢過濾條件 (API 參數)
+  /// [fromJson] : 將 Map 轉換為物件的工廠方法 (例如 Announcement.fromJson)
+  /// [action] : API 動作指令，預設為 'P'
+  Future<List<T>> fetchList<T>({
+    required String tableName,
+    required String pk,
+    required String queryFilter,
+    required T Function(Map<String, dynamic>) fromJson,
+    String action = 'P', // 對應 index.js 中的 _$_action
+    Map<String, dynamic> data = const {}, // 存放實際要存入資料庫的欄位值
+  }) async {
+
+    // 1. 讀取 Token (index.js 會優先檢查 body.token)
+    String? token = _getToken();  // await AuthManager.getToken();
+    if (token == null) {
+      throw Exception('未登入：找不到有效 Token');
+    }
+
+    // 2. 建立 API 參數
+    final Map<String, String> params = {
+      "token": token,
+      "_\$_tableName": tableName,
+      "_\$_pk": pk,
+      "_\$_action": action, // [修改] 使用傳入的參數
+      "_\$_query_filter": queryFilter,
+    };
+
+    // 3. 處理動態資料欄位 (將所有 value 轉為 String 以符合 http.post body 要求)
+    data.forEach((key, value) {
+      if (value != null) {
+        params[key] = value.toString();
+      }
+    });
+
+    try {
+      final response = await http.post(
+        Uri.parse(_getDynamicUrl()),
+        headers: {
+          'Content-Type': 'application/x-www-form-urlencoded',
+        },
+        body: params,
+      );
+
+      if (response.statusCode == 200) {
+        final Map<String, dynamic> responseData = json.decode(response.body);
+
+        // 【修正】同時相容大寫 Code 與小寫 code
+        final int code = responseData['code'] ?? responseData['Code'] ?? -1;
+
+        // 檢查後端回傳的 code
+        if (code == 0) {
+          final dynamic dataObject = responseData['data'];
+
+          // 處理 index.js 回傳的資料結構 (data -> items)
+          if (dataObject is Map && dataObject['items'] is List) {
+            List<dynamic> listJson = dataObject['items'];
+            return listJson.map((json) => fromJson(json as Map<String, dynamic>)).toList();
+          } else if (dataObject is Map) {
+            // 處理直接回傳單一物件的情況
+            return [fromJson(dataObject as Map<String, dynamic>)];
+          }
+          // 若直接回傳 List (部分 action 可能直接回傳 dataResult)
+          else if (dataObject is List) {
+            return dataObject.map((json) => fromJson(json as Map<String, dynamic>)).toList();
+          }
+          return [];
+        } else {
+          print("API 錯誤: ${responseData['msg'] ?? responseData['message']}");
+          return [];
+        }
+      } else {
+        throw Exception('HTTP 錯誤: ${response.statusCode}');
+      }
+    } catch (e) {
+      print("GenericApiService 發生異常: $e");
+      rethrow;
+    }
+  }
+}