Do not let the user create a repo which already exists

Fixes APP-3C

lib/setup/autoconfigure.dart

@@ -16,7 +16,7 @@ import 'loading.dart';
 
 class GitHostSetupAutoConfigure extends StatefulWidget {
   final GitHostType gitHostType;
-  final Func1<GitHost, void> onDone;
+  final Func2<GitHost, UserInfo, void> onDone;
 
   GitHostSetupAutoConfigure({
     @required this.gitHostType,
@@ -57,12 +57,13 @@ class GitHostSetupAutoConfigureState extends State<GitHostSetupAutoConfigure> {
         }
         Log.d("GitHost Initalized: " + widget.gitHostType.toString());
 
+        UserInfo userInfo;
         try {
           setState(() {
             _message = tr('setup.autoconfigure.readUser');
           });
 
-          var userInfo = await gitHost.getUserInfo();
+          userInfo = await gitHost.getUserInfo();
           var settings = Provider.of<Settings>(context, listen: false);
           if (userInfo.name != null && userInfo.name.isNotEmpty) {
             settings.gitAuthor = userInfo.name;
@@ -75,7 +76,7 @@ class GitHostSetupAutoConfigureState extends State<GitHostSetupAutoConfigure> {
           _handleGitHostException(e, stacktrace);
           return;
         }
-        widget.onDone(gitHost);
+        widget.onDone(gitHost, userInfo);
       });
 
       try {

lib/setup/repo_selector.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:function_types/function_types.dart';
 import 'package:intl/intl.dart';
+import 'package:path/path.dart' as p;
 import 'package:time/time.dart';
 import 'package:timeago/timeago.dart' as timeago;
 
@@ -18,10 +19,12 @@ import 'package:gitjournal/utils/logger.dart';
 
 class GitHostSetupRepoSelector extends StatefulWidget {
   final GitHost gitHost;
+  final UserInfo userInfo;
   final Func1<GitHostRepo, void> onDone;
 
   GitHostSetupRepoSelector({
     @required this.gitHost,
+    @required this.userInfo,
     @required this.onDone,
   });
 
@@ -123,11 +126,21 @@ class GitHostSetupRepoSelectorState extends State<GitHostSetupRepoSelector> {
     var filteredRepos = repos.where((r) {
       var repoName = r.fullName.split('/').last;
       return repoName.toLowerCase().contains(q);
-    });
+    }).toList();
+
+    var repoExists = filteredRepos.indexWhere((r) {
+          var l = r.fullName.split('/');
+          var username = l.first;
+          var repoName = l.last;
+          return repoName.toLowerCase() == _textController.text &&
+              username == widget.userInfo.username;
+        }) !=
+        -1;
+    var createRepoTile = _textController.text.isNotEmpty && !repoExists;
 
     Widget repoBuilder = ListView(
       children: <Widget>[
-        if (_textController.text.isNotEmpty) _buildCreateRepoTile(),
+        if (createRepoTile) _buildCreateRepoTile(),
         for (var repo in filteredRepos)
           _RepoTile(
             repo: repo,
@@ -211,10 +224,11 @@ class GitHostSetupRepoSelectorState extends State<GitHostSetupRepoSelector> {
 
   Widget _buildCreateRepoTile() {
     var repoName = _textController.text.trim();
+    var fullRepoName = p.join(widget.userInfo.username, repoName);
 
     return ListTile(
       leading: const Icon(Icons.add),
-      title: Text(tr('setup.repoSelector.create', args: [repoName])),
+      title: Text(tr('setup.repoSelector.create', args: [fullRepoName])),
       contentPadding: const EdgeInsets.all(0.0),
       onTap: () {
         setState(() {

lib/setup/screens.dart

@@ -71,6 +71,8 @@ class GitHostSetupScreenState extends State<GitHostSetupScreen> {
   var pageController = PageController();
   int _currentPageIndex = 0;
 
+  UserInfo _userInfo;
+
   Widget _buildPage(BuildContext context, int pos) {
     assert(_pageCount >= 1);
 
@@ -175,9 +177,10 @@ class GitHostSetupScreenState extends State<GitHostSetupScreen> {
       } else if (_pageChoice[1] == PageChoice1.Auto) {
         return GitHostSetupAutoConfigure(
           gitHostType: _gitHostType,
-          onDone: (GitHost gitHost) {
+          onDone: (GitHost gitHost, UserInfo userInfo) {
             setState(() {
               _gitHost = gitHost;
+              _userInfo = userInfo;
               _pageCount = pos + 2;
 
               _nextPage();
@@ -251,6 +254,7 @@ class GitHostSetupScreenState extends State<GitHostSetupScreen> {
       } else if (_pageChoice[1] == PageChoice1.Auto) {
         return GitHostSetupRepoSelector(
           gitHost: _gitHost,
+          userInfo: _userInfo,
           onDone: (GitHostRepo repo) {
             setState(() {
               _gitHostRepo = repo;