app/Livewire/Channels.php

@@ -34,6 +34,14 @@ class Channels extends Component
 
     public string $newDescription = '';
 
+    public ?int $editingChannelId = null;
+
+    public string $editDisplayName = '';
+
+    public ?int $editLanguageId = null;
+
+    public string $editDescription = '';
+
     public function toggle(int $channelId): void
     {
         $channel = PlatformChannel::findOrFail($channelId);
@@ -127,6 +135,45 @@ public function createChannel(CreateChannelAction $action): void
         $this->closeCreateModal();
     }
 
+    public function openEditModal(int $channelId): void
+    {
+        $channel = PlatformChannel::findOrFail($channelId);
+
+        $this->resetErrorBag();
+        $this->editingChannelId = $channelId;
+        $this->editDisplayName = $channel->display_name;
+        $this->editLanguageId = $channel->language_id;
+        $this->editDescription = $channel->description ?? '';
+    }
+
+    public function closeEditModal(): void
+    {
+        $this->editingChannelId = null;
+    }
+
+    // The community pairing (name, channel_id, platform_instance_id) is deliberately immutable:
+    // it is the channel's remote identity, unique per instance, and re-pointing it would change
+    // the meaning of every route already attached.
+    public function updateChannel(): void
+    {
+        if ($this->editingChannelId === null) {
+            return;
+        }
+
+        $this->validate([
+            'editDisplayName' => 'required|string|max:255',
+            'editLanguageId' => 'nullable|integer|exists:languages,id',
+        ]);
+
+        PlatformChannel::findOrFail($this->editingChannelId)->update([
+            'display_name' => $this->editDisplayName,
+            'language_id' => $this->editLanguageId,
+            'description' => $this->editDescription !== '' ? $this->editDescription : null,
+        ]);
+
+        $this->closeEditModal();
+    }
+
     public function openAccountModal(int $channelId): void
     {
         $this->managingChannelId = $channelId;
@@ -177,6 +224,9 @@ public function render(): View
         return view('livewire.channels', [
             'channels' => $channels,
             'managingChannel' => $managingChannel,
+            'editingChannel' => $this->editingChannelId !== null
+                ? PlatformChannel::with('platformInstance')->find($this->editingChannelId)
+                : null,
             'availableAccounts' => $availableAccounts,
             'platformInstances' => PlatformInstance::where('is_active', true)->orderBy('name')->get(),
             'languages' => Language::where('is_active', true)->orderBy('name')->get(),

app/Models/PlatformChannel.php

@@ -17,7 +17,9 @@
  * @property PlatformInstance $platformInstance
  * @property int $channel_id
  * @property string $name
- * @property int $language_id
+ * @property string $display_name
+ * @property string|null $description
+ * @property int|null $language_id
  * @property Language|null $language
  * @property bool $is_active
  */

phpstan-baseline.neon

@@ -12,12 +12,6 @@ parameters:
 			count: 1
 			path: tests/Unit/Actions/CreateChannelActionTest.php
 
-		-
-			message: '#^Call to method PHPUnit\\Framework\\Assert\:\:assertNull\(\) with int will always evaluate to false\.$#'
-			identifier: method.impossibleType
-			count: 1
-			path: tests/Unit/Actions/CreateChannelActionTest.php
-
 		-
 			message: '#^Access to an undefined property App\\Models\\Route\:\:\$id\.$#'
 			identifier: property.notFound

resources/views/livewire/channels.blade.php

@@ -35,6 +35,18 @@ class="text-sm text-blue-500 hover:underline">
                             @endif
                         </div>
                     </div>
+                    <div class="flex shrink-0 items-center space-x-1">
+                        <button
+                            wire:click="openEditModal({{ $channel->id }})"
+                            class="p-1 rounded-full text-gray-400 hover:bg-gray-100 hover:text-gray-600 dark:text-gray-500 dark:hover:bg-gray-700 dark:hover:text-gray-300"
+                            title="Edit channel"
+                            aria-label="Edit {{ $channel->display_name }}"
+                        >
+                            <svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                                <path stroke-linecap="round" stroke-linejoin="round" d="m16.862 4.487 1.687-1.688a1.875 1.875 0 1 1 2.652 2.652L10.582 16.07a4.5 4.5 0 0 1-1.897 1.13L6 18l.8-2.685a4.5 4.5 0 0 1 1.13-1.897l8.932-8.931Zm0 0L19.5 7.125" />
+                            </svg>
+                        </button>
+
                         <button
                             wire:click="toggle({{ $channel->id }})"
                             class="p-1 rounded-full {{ $channel->is_active ? 'bg-green-100 text-green-600 dark:bg-green-900/30 dark:text-green-400' : 'bg-gray-100 text-gray-400 dark:bg-gray-700 dark:text-gray-500' }}"
@@ -45,6 +57,7 @@ class="p-1 rounded-full {{ $channel->is_active ? 'bg-green-100 text-green-600 da
                             </svg>
                         </button>
                     </div>
+                </div>
 
                 @if ($channel->description)
                     <p class="mt-3 text-sm text-gray-500 line-clamp-2 dark:text-gray-400">
@@ -259,4 +272,82 @@ class="inline-flex justify-center rounded-md border border-transparent shadow-xs
                     </form>
         </x-form-modal>
     @endif
+
+    <!-- Edit Channel Modal -->
+    @if ($editingChannel)
+        <x-form-modal title="Edit Channel" close="closeEditModal">
+            <form wire:submit="updateChannel" class="space-y-4">
+                <div>
+                    <label for="edit-channel-display-name" class="block text-sm font-medium text-gray-700 dark:text-gray-200">Display name</label>
+                    <input
+                        type="text"
+                        id="edit-channel-display-name"
+                        wire:model="editDisplayName"
+                        class="mt-1 block w-full rounded-md border border-gray-300 shadow-xs focus:border-blue-500 focus:ring-blue-500 sm:text-sm dark:border-gray-600"
+                    />
+                    @error('editDisplayName') <p class="mt-1 text-sm text-red-600 dark:text-red-400">{{ $message }}</p> @enderror
+                </div>
+
+                <div>
+                    <label for="edit-channel-language" class="block text-sm font-medium text-gray-700 dark:text-gray-200">Language <span class="text-gray-400 dark:text-gray-500">(optional)</span></label>
+                    <select
+                        id="edit-channel-language"
+                        wire:model="editLanguageId"
+                        class="mt-1 block w-full rounded-md border border-gray-300 shadow-xs focus:border-blue-500 focus:ring-blue-500 sm:text-sm dark:border-gray-600"
+                    >
+                        <option value="">No language</option>
+                        @foreach ($languages as $language)
+                            <option value="{{ $language->id }}">{{ $language->name }}</option>
+                        @endforeach
+                    </select>
+                    @error('editLanguageId') <p class="mt-1 text-sm text-red-600 dark:text-red-400">{{ $message }}</p> @enderror
+                </div>
+
+                <div>
+                    <label for="edit-channel-description" class="block text-sm font-medium text-gray-700 dark:text-gray-200">Description <span class="text-gray-400 dark:text-gray-500">(optional)</span></label>
+                    <textarea
+                        id="edit-channel-description"
+                        wire:model="editDescription"
+                        rows="2"
+                        class="mt-1 block w-full rounded-md border border-gray-300 shadow-xs focus:border-blue-500 focus:ring-blue-500 sm:text-sm dark:border-gray-600"
+                    ></textarea>
+                    @error('editDescription') <p class="mt-1 text-sm text-red-600 dark:text-red-400">{{ $message }}</p> @enderror
+                </div>
+
+                <div class="rounded-md bg-gray-50 p-3 dark:bg-gray-700/30">
+                    <dl class="space-y-1 text-sm">
+                        <div class="flex justify-between">
+                            <dt class="text-gray-500 dark:text-gray-400">Community</dt>
+                            <dd class="font-medium text-gray-700 dark:text-gray-200">{{ $editingChannel->name }}</dd>
+                        </div>
+                        <div class="flex justify-between">
+                            <dt class="text-gray-500 dark:text-gray-400">Instance</dt>
+                            <dd class="font-medium text-gray-700 dark:text-gray-200">{{ $editingChannel->platformInstance->name }}</dd>
+                        </div>
+                    </dl>
+                    <p class="mt-2 text-xs text-gray-500 dark:text-gray-400">
+                        The community and instance identify this channel on the remote platform and cannot be changed. Every route attached to this channel publishes here. Create a new channel to post somewhere else.
+                    </p>
+                </div>
+
+                <div class="mt-6 flex justify-end space-x-3">
+                    <button
+                        type="button"
+                        wire:click="closeEditModal"
+                        class="inline-flex justify-center rounded-md border border-gray-300 shadow-xs px-4 py-2 bg-white text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-hidden focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-200 dark:hover:bg-gray-700/50"
+                    >
+                        Cancel
+                    </button>
+                    <button
+                        type="submit"
+                        wire:loading.attr="disabled"
+                        wire:target="updateChannel"
+                        class="inline-flex justify-center rounded-md border border-transparent shadow-xs px-4 py-2 bg-blue-600 text-sm font-medium text-white hover:bg-blue-700 focus:outline-hidden focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed"
+                    >
+                        Save changes
+                    </button>
+                </div>
+            </form>
+        </x-form-modal>
+    @endif
 </div>

tests/Feature/Livewire/ChannelsTest.php

@@ -248,4 +248,166 @@ public function test_toggle_flips_active_state(): void
 
         $this->assertFalse($channel->fresh()->is_active);
     }
+
+    public function test_channel_cards_show_an_edit_action(): void
+    {
+        PlatformChannel::factory()->create(['display_name' => 'Tech Community']);
+
+        Livewire::test(Channels::class)
+            ->assertSee('Edit Tech Community');
+    }
+
+    public function test_open_edit_modal_prefills_the_current_values(): void
+    {
+        $language = Language::factory()->create();
+        $channel = PlatformChannel::factory()->create([
+            'display_name' => 'Tech Community',
+            'description' => 'A place for tech',
+            'language_id' => $language->id,
+        ]);
+
+        Livewire::test(Channels::class)
+            ->assertSet('editingChannelId', null)
+            ->call('openEditModal', $channel->id)
+            ->assertSet('editingChannelId', $channel->id)
+            ->assertSet('editDisplayName', 'Tech Community')
+            ->assertSet('editDescription', 'A place for tech')
+            ->assertSet('editLanguageId', $language->id)
+            ->assertSee('Edit Channel');
+    }
+
+    public function test_open_edit_modal_prefills_a_null_description_as_blank(): void
+    {
+        $channel = PlatformChannel::factory()->create(['description' => null]);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->assertSet('editDescription', '');
+    }
+
+    public function test_update_channel_persists_the_changes_and_closes_the_modal(): void
+    {
+        $language = Language::factory()->create();
+        $channel = PlatformChannel::factory()->create([
+            'display_name' => 'Old Name',
+            'description' => 'Old description',
+            'language_id' => null,
+        ]);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editDisplayName', 'New Name')
+            ->set('editDescription', 'New description')
+            ->set('editLanguageId', $language->id)
+            ->call('updateChannel')
+            ->assertSet('editingChannelId', null)
+            ->assertHasNoErrors();
+
+        $channel->refresh();
+
+        $this->assertSame('New Name', $channel->display_name);
+        $this->assertSame('New description', $channel->description);
+        $this->assertSame($language->id, $channel->language_id);
+    }
+
+    public function test_update_channel_requires_a_display_name(): void
+    {
+        $channel = PlatformChannel::factory()->create(['display_name' => 'Original']);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editDisplayName', '')
+            ->call('updateChannel')
+            ->assertHasErrors(['editDisplayName' => 'required']);
+
+        $this->assertSame('Original', $channel->fresh()->display_name);
+    }
+
+    public function test_update_channel_rejects_a_display_name_over_the_length_limit(): void
+    {
+        $channel = PlatformChannel::factory()->create(['display_name' => 'Original']);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editDisplayName', str_repeat('a', 256))
+            ->call('updateChannel')
+            ->assertHasErrors(['editDisplayName' => 'max']);
+
+        $this->assertSame('Original', $channel->fresh()->display_name);
+    }
+
+    public function test_update_channel_rejects_an_unknown_language(): void
+    {
+        $channel = PlatformChannel::factory()->create(['display_name' => 'Original']);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editLanguageId', 999999)
+            ->call('updateChannel')
+            ->assertHasErrors(['editLanguageId' => 'exists']);
+    }
+
+    public function test_update_channel_allows_clearing_the_language(): void
+    {
+        $language = Language::factory()->create();
+        $channel = PlatformChannel::factory()->create(['language_id' => $language->id]);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editLanguageId', null)
+            ->call('updateChannel')
+            ->assertHasNoErrors();
+
+        $this->assertNull($channel->fresh()->language_id);
+    }
+
+    public function test_update_channel_stores_a_blank_description_as_null(): void
+    {
+        $channel = PlatformChannel::factory()->create(['description' => 'Has one']);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editDescription', '')
+            ->call('updateChannel');
+
+        $this->assertNull($channel->fresh()->description);
+    }
+
+    public function test_update_channel_leaves_the_community_pairing_untouched(): void
+    {
+        $channel = PlatformChannel::factory()->create(['display_name' => 'Original']);
+        $before = $channel->only(['name', 'channel_id', 'platform_instance_id']);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editDisplayName', 'Renamed')
+            ->call('updateChannel');
+
+        $this->assertSame($before, $channel->fresh()->only(['name', 'channel_id', 'platform_instance_id']));
+    }
+
+    public function test_close_edit_modal_discards_the_edit(): void
+    {
+        $channel = PlatformChannel::factory()->create(['display_name' => 'Original']);
+
+        Livewire::test(Channels::class)
+            ->call('openEditModal', $channel->id)
+            ->set('editDisplayName', 'Discarded')
+            ->call('closeEditModal')
+            ->assertSet('editingChannelId', null);
+
+        $this->assertSame('Original', $channel->fresh()->display_name);
+    }
+
+    public function test_update_channel_does_nothing_without_an_open_modal(): void
+    {
+        $channel = PlatformChannel::factory()->create(['display_name' => 'Original']);
+
+        Livewire::test(Channels::class)
+            ->set('editDisplayName', 'Should not apply')
+            ->call('updateChannel')
+            ->assertHasNoErrors();
+
+        $this->assertSame('Original', $channel->fresh()->display_name);
+    }
 }