Create search page

lib/helpers/search_helper.dart

@@ -1,6 +1,8 @@
 import 'package:comunic/helpers/users_helper.dart';
+import 'package:comunic/lists/search_results_list.dart';
 import 'package:comunic/lists/users_list.dart';
 import 'package:comunic/models/api_request.dart';
+import 'package:comunic/models/search_result.dart';
 import 'package:comunic/utils/api_utils.dart';
 
 /// Search helper
@@ -21,4 +23,25 @@ class SearchHelper {
     return await UsersHelper()
         .getUsersInfo(response.getArray().map((f) => cast<int>(f)).toList());
   }
+
+  /// Perform a global search
+  Future<SearchResultsList> globalSearch(String query) async {
+    final result = await APIRequest(
+        uri: "search/global", needLogin: true, args: {"query": query}).exec();
+
+    result.assertOk();
+
+    return SearchResultsList()..addAll(result.getArray().map((f) {
+      switch (f["kind"]) {
+        case "user":
+          return SearchResult(id: f["id"], kind: SearchResultKind.USER);
+
+        case "group":
+          return SearchResult(id: f["id"], kind: SearchResultKind.GROUP);
+
+        default:
+          throw Exception("Unkown search kind: ${f["kind"]}");
+      }
+    }).toList());
+  }
 }

lib/lists/search_results_list.dart

@@ -0,0 +1,20 @@
+import 'package:comunic/lists/abstract_list.dart';
+import 'package:comunic/models/search_result.dart';
+
+/// List of result of a global search on the database
+///
+/// @author Pierre Hubert
+
+class SearchResultsList extends AbstractList<SearchResult> {
+  /// Get the list of users included in this search result
+  Set<int> get usersId => this
+      .where((f) => f.kind == SearchResultKind.USER)
+      .map((f) => f.id)
+      .toSet();
+
+  /// Get the list of groups included in this search result
+  Set<int> get groupsId => this
+      .where((f) => f.kind == SearchResultKind.GROUP)
+      .map((f) => f.id)
+      .toSet();
+}

lib/models/search_result.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/cupertino.dart';
+
+/// Single search result
+///
+/// @author Pierre Hubert
+
+enum SearchResultKind { USER, GROUP }
+
+class SearchResult {
+  final int id;
+  final SearchResultKind kind;
+
+  SearchResult({
+    @required this.id,
+    @required this.kind,
+  })  : assert(id != null),
+        assert(kind != null);
+}

lib/ui/routes/home_route.dart

@@ -9,6 +9,7 @@ import 'package:comunic/ui/screens/groups_list_screen.dart';
 import 'package:comunic/ui/screens/newest_posts.dart';
 import 'package:comunic/ui/screens/notifications_screen.dart';
 import 'package:comunic/ui/screens/other_friends_lists_screen.dart';
+import 'package:comunic/ui/screens/search_screen.dart';
 import 'package:comunic/ui/screens/user_access_denied_screen.dart';
 import 'package:comunic/ui/screens/user_page_screen.dart';
 import 'package:comunic/ui/widgets/navbar_widget.dart';
@@ -168,6 +169,9 @@ class _HomeRouteState extends HomeController {
       case BarCallbackActions.OPEN_USER_ACCESS_DENIED_PAGE:
         return UserAccessDeniedScreen(userID: _currTab.args["userID"]);
 
+      case BarCallbackActions.OPEN_SEARCH_PAGE:
+        return SearchScreen();
+
       case BarCallbackActions.OPEN_GROUPS:
         return GroupsListScreen();
 

lib/ui/screens/search_screen.dart

@@ -0,0 +1,118 @@
+import 'package:comunic/helpers/groups_helper.dart';
+import 'package:comunic/helpers/search_helper.dart';
+import 'package:comunic/helpers/users_helper.dart';
+import 'package:comunic/lists/groups_list.dart';
+import 'package:comunic/lists/search_results_list.dart';
+import 'package:comunic/lists/users_list.dart';
+import 'package:comunic/models/group.dart';
+import 'package:comunic/models/search_result.dart';
+import 'package:comunic/models/user.dart';
+import 'package:comunic/ui/routes/home_route.dart';
+import 'package:comunic/ui/widgets/account_image_widget.dart';
+import 'package:comunic/ui/widgets/group_icon_widget.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:comunic/utils/ui_utils.dart';
+import 'package:flutter/material.dart';
+
+/// Search screen
+///
+/// @author Pierre Hubert
+
+class SearchScreen extends StatefulWidget {
+  @override
+  _SearchScreenState createState() => _SearchScreenState();
+}
+
+class _SearchScreenState extends State<SearchScreen> {
+  SearchResultsList _searchResultsList;
+  UsersList _usersList;
+  GroupsList _groupsList;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(8.0),
+      child: Column(
+        children: <Widget>[
+          TextField(
+            onChanged: (s) => _newSearch(s),
+          ),
+          _searchResultsList == null
+              ? Container()
+              : Expanded(
+                  child: ListView(
+                    children: _searchResultsList
+                        .map((f) => f.kind == SearchResultKind.USER
+                            ? _SearchResultUser(
+                                user: _usersList.getUser(f.id),
+                              )
+                            : _SearchResultGroup(
+                                group: _groupsList[f.id],
+                              ))
+                        .toList(),
+                  ),
+                )
+        ],
+      ),
+    );
+  }
+
+  /// Perform a new search
+  void _newSearch(String s) async {
+    try {
+      if (s.length < 2) return;
+
+      final list = await SearchHelper().globalSearch(s);
+      final users = await UsersHelper().getListWithThrow(list.usersId);
+      final groups = await GroupsHelper().getListOrThrow(list.groupsId);
+
+      setState(() {
+        _searchResultsList = list;
+        _usersList = users;
+        _groupsList = groups;
+      });
+    } catch (e, stack) {
+      print(e);
+      print(stack);
+
+      showSimpleSnack(context, tr("Could not peform search!"));
+    }
+  }
+}
+
+class _SearchResultUser extends StatelessWidget {
+  final User user;
+
+  const _SearchResultUser({Key key, this.user})
+      : assert(user != null),
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      leading: AccountImageWidget(
+        user: user,
+      ),
+      title: Text(user.displayName),
+      onTap: () => HomeController.of(context).openUserPage(user.id),
+    );
+  }
+}
+
+class _SearchResultGroup extends StatelessWidget {
+  final Group group;
+
+  const _SearchResultGroup({Key key, this.group})
+      : assert(group != null),
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      leading: GroupIcon(group: group),
+      title: Text(group.displayName),
+      subtitle: Text(tr("Group")),
+      onTap: () => HomeController.of(context).openGroup(group.id),
+    );
+  }
+}

lib/ui/widgets/navbar_widget.dart

@@ -16,6 +16,7 @@ enum BarCallbackActions {
   OPEN_NEWEST_POSTS,
   OPEN_FRIENDS,
   OPEN_MY_PAGE,
+  OPEN_SEARCH_PAGE,
   OPEN_GROUPS,
   OPEN_GROUP_PAGE,
   OPEN_USER_PAGE,
@@ -91,7 +92,11 @@ final _menuActionsItem = <_ActionMenuItem>[
   _ActionMenuItem(
       label: tr("My Page"), action: BarCallbackActions.OPEN_MY_PAGE),
   _ActionMenuItem(label: tr("Groups"), action: BarCallbackActions.OPEN_GROUPS),
-  _ActionMenuItem(label: tr("Account settings"), action: BarCallbackActions.OPEN_ACCOUNT_SETTINGS),
+  _ActionMenuItem(
+      label: tr("Search"), action: BarCallbackActions.OPEN_SEARCH_PAGE),
+  _ActionMenuItem(
+      label: tr("Account settings"),
+      action: BarCallbackActions.OPEN_ACCOUNT_SETTINGS),
   _ActionMenuItem(
       label: tr("App settings"), action: BarCallbackActions.OPEN_APP_SETTINGS),
   _ActionMenuItem(