Initial project

app/Livewire/Chat/ConversationHeader.php

@@ -0,0 +1,103 @@
+<?php
+
+namespace App\Livewire\Chat;
+
+use App\Models\Conversation;
+use App\Models\ConversationParticipant;
+use App\Models\User;
+use Illuminate\Contracts\View\View;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Gate;
+use Livewire\Attributes\Computed;
+use Livewire\Attributes\Locked;
+use Livewire\Component;
+
+class ConversationHeader extends Component
+{
+    #[Locked]
+    public int $conversationId;
+
+    public function mount(int $conversationId): void
+    {
+        $this->conversationId = $conversationId;
+    }
+
+    #[Computed]
+    public function conversation(): Conversation
+    {
+        $conversation = Conversation::query()
+            ->forUser(Auth::user())
+            ->with([
+                'participants' => fn ($query) => $query
+                    ->select(['id', 'conversation_id', 'user_id', 'role'])
+                    ->with('user:id,name,email'),
+            ])
+            ->findOrFail($this->conversationId);
+
+        Gate::authorize('view', $conversation);
+
+        return $conversation;
+    }
+
+    public function title(): string
+    {
+        if ($this->conversation->isGroup()) {
+            return $this->conversation->name ?? __('Untitled group');
+        }
+
+        return $this->otherParticipant()?->name ?? __('Direct conversation');
+    }
+
+    public function subtitle(): string
+    {
+        if ($this->conversation->isGroup()) {
+            return trans_choice(':count member|:count members', $this->conversation->participants->count(), [
+                'count' => $this->conversation->participants->count(),
+            ]);
+        }
+
+        return $this->isOnline() ? __('Online') : __('Recently active');
+    }
+
+    public function initials(): string
+    {
+        if (! $this->conversation->isGroup()) {
+            return $this->otherParticipant()?->initials() ?? 'DC';
+        }
+
+        return collect(explode(' ', $this->title()))
+            ->filter()
+            ->take(2)
+            ->map(fn (string $word) => mb_substr($word, 0, 1))
+            ->implode('');
+    }
+
+    public function isOnline(): bool
+    {
+        $participant = $this->otherParticipant();
+
+        return $participant instanceof User && $participant->id % 3 !== 0;
+    }
+
+    public function closeConversation(): void
+    {
+        $this->dispatch('conversation-closed');
+    }
+
+    public function toggleDetails(): void
+    {
+        $this->dispatch('conversation-details-toggled');
+    }
+
+    private function otherParticipant(): ?User
+    {
+        return $this->conversation->participants
+            ->first(fn (ConversationParticipant $participant) => $participant->user_id !== Auth::id())
+            ?->user;
+    }
+
+    public function render(): View
+    {
+        return view('livewire.chat.conversation-header');
+    }
+}