add structure

lib/model/report_user_model.dart

@@ -0,0 +1,83 @@
+import 'dart:convert';
+
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:fcs/model/constants.dart';
+import 'package:fcs/vo/report.dart';
+import 'package:fcs/vo/report_user.dart';
+import 'package:fcs/vo/user.dart';
+
+import '../config.dart';
+import 'base_model.dart';
+import 'firebase_helper.dart';
+
+class ReportUserModel extends BaseModel {
+  List<ReportUser> reportUsers = [];
+  void initUser(user) {
+    super.initUser(user);
+  }
+
+  @override
+  logout() async {}
+
+  Future<List<ReportUser>> getUsersForReport(String reportID) async {
+    List<ReportUser> users = [];
+    String path = "/$report_user_collection";
+
+    QuerySnapshot snapshots = await Firestore.instance
+        .collection(path)
+        .where('report_id', isEqualTo: reportID)
+        .getDocuments();
+    snapshots.documents.forEach((d) {
+      users.add(ReportUser.fromMap(d.data, d.documentID));
+    });
+    return users;
+  }
+
+  Future<List<User>> findUser(String searchUser) async {
+    if (searchUser == null || searchUser == '') return List();
+
+    var bytes = utf8.encode(searchUser);
+    var base64Str = base64.encode(bytes);
+    HtmlEscape htmlEscape = const HtmlEscape();
+    String escapeUser = htmlEscape.convert(base64Str);
+
+    int limit = 20;
+    List<User> _users = [];
+
+    try {
+      var data = await request(
+          "/api/fts/$user_collection/$escapeUser/$limit", "GET",
+          token: await getToken(), url: Config.instance.reportURL);
+      if (data == null) return List();
+
+      data.forEach((user) {
+        var _user = User.fromUserJson(user);
+        _users.add(_user);
+      });
+    } catch (e) {
+      // permission error
+      log.warning("user error:" + e.toString());
+      return null;
+    }
+    return _users;
+  }
+
+  Future<void> updateReportForAllUsers(Report report) async {
+    await request("/report", "PUT",
+        payload: {'id': report.id, 'for_all_users': report.forAllUser},
+        token: await getToken());
+    notifyListeners();
+  }
+
+  Future<void> assignUser(ReportUser reportUser) async {
+    await request("/report_user", "POST",
+        payload: reportUser.toMap(), token: await getToken());
+    notifyListeners();
+  }
+
+  Future<void> deleteReportUser(ReportUser reportUser) async {
+    await request("/report_user", "DELETE",
+        payload: reportUser.toMap(), token: await getToken());
+    notifyListeners();
+  }
+}