import 'package:comunic/enums/post_target.dart';
import 'package:comunic/helpers/posts_helper.dart';
import 'package:comunic/models/advanced_user_info.dart';
import 'package:comunic/ui/routes/main_route/main_route.dart';
import 'package:comunic/ui/widgets/account_image_widget.dart';
import 'package:comunic/ui/widgets/post_create_form_widget.dart';
import 'package:comunic/ui/widgets/posts_list_widget.dart';
import 'package:comunic/utils/conversations_utils.dart';
import 'package:comunic/utils/intl_utils.dart';
import 'package:comunic/utils/ui_utils.dart';
import 'package:flutter/material.dart';

/// Mobile mode of user page
///
/// @author Pierre Hubert

enum _MenuOptions { FRIENDS_LIST }

class UserMobilePage extends StatefulWidget {
  final AdvancedUserInfo userInfo;
  final void Function() onNeedRefresh;

  const UserMobilePage({
    Key key,
    @required this.userInfo,
    @required this.onNeedRefresh,
  })  : assert(userInfo != null),
        assert(onNeedRefresh != null),
        super(key: key);

  @override
  _UserMobilePageState createState() => _UserMobilePageState();
}

class _UserMobilePageState extends State<UserMobilePage> {
  AdvancedUserInfo get _userInfo => widget.userInfo;

  int get _userID => _userInfo.id;

  Widget _buildHeader() {
    return Container(
      color: Colors.black26,
      child: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Row(
          children: <Widget>[
            InkWell(
              onTap: () =>
                  showImageFullScreen(context, _userInfo.accountImageURL),
              child: AccountImageWidget(user: _userInfo),
            ),
            Text(" ${_userInfo.displayName}"),
            Spacer(),
            IconButton(
                icon: Icon(
                  Icons.chat,
                ),
                onPressed: () {
                  openPrivateConversation(context, _userID);
                }),
            PopupMenuButton<_MenuOptions>(
              itemBuilder: (c) => [
                PopupMenuItem(
                  child: Text(tr("Friends")),
                  enabled: _userInfo != null,
                  value: _MenuOptions.FRIENDS_LIST,
                )
              ],
              onSelected: _selectedMenuOption,
            ),
          ],
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return PostsListWidget(
      topWidgets: [
        _buildHeader(),
        _userInfo.canPostTexts
            ? PostCreateFormWidget(
                postTarget: PostTarget.USER_PAGE,
                targetID: _userInfo.id,
                onCreated: _postCreated,
              )
            : Container()
      ],
      getPostsList: () => PostsHelper().getUserPosts(_userID),
      getOlder: (from) => PostsHelper().getUserPosts(_userID, from: from),
      showPostsTarget: false,
    );
  }

  /// Method called each time a menu option is selected
  void _selectedMenuOption(_MenuOptions value) {
    switch (value) {
      case _MenuOptions.FRIENDS_LIST:
        MainController.of(context).openUserFriendsList(_userInfo.id);
        break;
    }
  }

  /// Method called once a post has been created
  void _postCreated() {
    widget.onNeedRefresh();
  }
}