94 lines
3.3 KiB
Dart
94 lines
3.3 KiB
Dart
import 'package:http/http.dart' as http;
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import 'dart:convert';
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import '../auth_manager.dart'; // 確保引入 AuthManager
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// 共用 API 常數
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const String BASE_IP = "https://api.gex.com.tw:8033";
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const String COMMON_API_ENDPOINT = "xapi/v2/eis_demo/orm_api_v2/2/";
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const String COMMON_API_URL = "$BASE_IP/$COMMON_API_ENDPOINT";
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class GenericApiService {
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/// 通用的獲取列表方法
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/// [T] : 目標資料模型 (例如 Announcement 或 Todo)
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/// [tableName] : 資料庫表名 (API 參數)
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/// [pk] : 主鍵欄位名稱 (API 參數)
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/// [queryFilter] : 查詢過濾條件 (API 參數)
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/// [fromJson] : 將 Map 轉換為物件的工廠方法 (例如 Announcement.fromJson)
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/// [action] : API 動作指令，預設為 'P'
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Future<List<T>> fetchList<T>({
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required String tableName,
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required String pk,
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required String queryFilter,
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required T Function(Map<String, dynamic>) fromJson,
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String action = 'P', // 對應 index.js 中的 _$_action
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Map<String, dynamic> data = const {}, // 存放實際要存入資料庫的欄位值
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}) async {
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// 1. 讀取 Token (index.js 會優先檢查 body.token)
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String? token = await AuthManager.getToken();
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if (token == null) {
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throw Exception('未登入：找不到有效 Token');
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}
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// 2. 建立 API 參數
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final Map<String, String> params = {
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"token": token,
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"_\$_tableName": tableName,
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"_\$_pk": pk,
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"_\$_action": action, // [修改] 使用傳入的參數
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"_\$_query_filter": queryFilter,
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};
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// 3. 處理動態資料欄位 (將所有 value 轉為 String 以符合 http.post body 要求)
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data.forEach((key, value) {
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if (value != null) {
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params[key] = value.toString();
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}
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});
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try {
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final response = await http.post(
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Uri.parse(COMMON_API_URL),
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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body: params,
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);
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if (response.statusCode == 200) {
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final Map<String, dynamic> responseData = json.decode(response.body);
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// 【修正】同時相容大寫 Code 與小寫 code
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final int code = responseData['code'] ?? responseData['Code'] ?? -1;
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// 檢查後端回傳的 code
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if (code == 0) {
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final dynamic dataObject = responseData['data'];
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// 處理 index.js 回傳的資料結構 (data -> items)
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if (dataObject is Map && dataObject['items'] is List) {
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List<dynamic> listJson = dataObject['items'];
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return listJson.map((json) => fromJson(json as Map<String, dynamic>)).toList();
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} else if (dataObject is Map) {
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// 處理直接回傳單一物件的情況
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return [fromJson(dataObject as Map<String, dynamic>)];
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}
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// 若直接回傳 List (部分 action 可能直接回傳 dataResult)
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else if (dataObject is List) {
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return dataObject.map((json) => fromJson(json as Map<String, dynamic>)).toList();
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}
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return [];
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} else {
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print("API 錯誤: ${responseData['msg'] ?? responseData['message']}");
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return [];
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}
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} else {
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throw Exception('HTTP 錯誤: ${response.statusCode}');
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}
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} catch (e) {
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print("GenericApiService 發生異常: $e");
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rethrow;
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}
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}
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} |