@extends('admin.layouts.app')

@section('page-title', 'Chat With ' . ($ticket->user->customer_name ?? $ticket->user->name))

@section('content')

<style>
    .chat-box {
        height: 70vh;
        overflow-y: auto;
        background: #f5f6fa;
        border-radius: 8px;
        padding: 15px;
    }
    .message {
        max-width: 65%;
        padding: 10px 14px;
        border-radius: 15px;
        margin-bottom: 10px;
        font-size: 0.9rem;
        line-height: 1.4;
    }
    .message.admin {
        background: #007bff;
        color: white;
        margin-left: auto;
        border-bottom-right-radius: 0;
    }
    .message.user {
        background: #ffffff;
        border: 1px solid #ddd;
        margin-right: auto;
        border-bottom-left-radius: 0;
    }
    .chat-input {
        position: fixed;
        bottom: 15px;
        left: 250px;
        right: 20px;
    }
</style>

<div class="container py-4">

    <div class="d-flex align-items-center mb-3">
        <h4 class="fw-bold mb-0">
            Chat With: {{ $ticket->user->customer_name ?? $ticket->user->name }}
        </h4>
        <span class="badge ms-3 {{ $ticket->status === 'open' ? 'bg-success' : 'bg-danger' }}">
            {{ ucfirst($ticket->status) }}
        </span>
    </div>

    <div id="chatBox" class="chat-box border shadow-sm">

        @foreach($messages as $msg)
            <div class="message {{ $msg->sender_type === 'App\\Models\\Admin' ? 'admin' : 'user' }}">

                {{-- TEXT --}}
                @if($msg->message)
                    <div>{{ $msg->message }}</div>
                @endif

                {{-- FILE --}}
                @if($msg->file_path)
                    <div class="mt-2">
                        @php $isImage = Str::startsWith($msg->file_type, 'image'); @endphp

                        @if($isImage)
                            <img src="{{ asset('storage/'.$msg->file_path) }}" style="max-width:150px;" class="rounded">
                        @else
                            <a href="{{ asset('storage/'.$msg->file_path) }}" target="_blank">📎 View Attachment</a>
                        @endif
                    </div>
                @endif

                <small class="text-muted d-block mt-1">
                    {{ $msg->created_at->format('d M h:i A') }}
                </small>

            </div>
        @endforeach

    </div>

    <div class="chat-input">
        <div class="card shadow-sm">
            <div class="card-body d-flex align-items-center gap-2">
                <input type="text" id="messageInput" class="form-control" placeholder="Type your message...">
                <input type="file" id="fileInput" class="form-control" style="max-width:200px;">
                <button class="btn btn-primary" id="sendBtn">Send</button>
            </div>
        </div>
    </div>

</div>

@endsection


@section('scripts')



<script>
// ✅ Make current admin ID available to JS
    const CURRENT_ADMIN_ID = {{ auth('admin')->id() }};

console.log("CHAT WINDOW: script loaded");

// -------------------------------
// WAIT FOR ECHO READY
// -------------------------------
function waitForEcho(callback, retries = 40) {
    if (window.Echo) {
        console.log("%c[ECHO] Ready!", "color: green; font-weight: bold;", window.Echo);
        return callback();
    }

    console.warn("[ECHO] Not ready. Retrying...");
    if (retries <= 0) {
        console.error("[ECHO] FAILED to initialize after retry limit");
        return;
    }

    setTimeout(() => waitForEcho(callback, retries - 1), 200);
}

// Scroll chat down
function scrollToBottom() {
    const el = document.getElementById("chatBox");
    if (el) el.scrollTop = el.scrollHeight;
}
scrollToBottom();

// -------------------------------
// SEND MESSAGE (WORKING PART FROM SCRIPT #1)
// -------------------------------
document.getElementById("sendBtn").addEventListener("click", function () {
    console.log("[SEND] Attempting to send message...");

    let msg = document.getElementById("messageInput").value;
    let file = document.getElementById("fileInput").files[0];

    if (!msg.trim() && !file) {
        alert("Please type something or upload a file.");
        return;
    }

    let formData = new FormData();
    formData.append("message", msg);
    if (file) formData.append("file", file);

    fetch("{{ route('admin.chat.send', $ticket->id) }}", {
        method: "POST",
        headers: { "X-CSRF-TOKEN": "{{ csrf_token() }}" },
        body: formData
    })
        .then(res => res.json())
        .then((response) => {
            console.log("[SEND] Message sent:", response);
            document.getElementById("messageInput").value = "";
            document.getElementById("fileInput").value = "";
        })
        .catch(err => console.error("[SEND] Error:", err));
});

// -------------------------------
// LISTEN FOR REALTIME MESSAGE (WORKING PART FROM SCRIPT #2)
// ----------------------------

waitForEcho(() => {
    const ticketId = "{{ $ticket->id }}";

    console.log("[ECHO] Subscribing to PRIVATE channel:", `ticket.${ticketId}`);

    window.Echo.private(`ticket.${ticketId}`)
        .listen(".NewChatMessage", (event) => {

            console.log("%c[REALTIME RECEIVED]", "color: blue; font-weight: bold;", event);

            const msg = event; // ✅ flat payload

            // ✅ CHECK IF THIS MESSAGE IS SENT BY CURRENT ADMIN
            const isMine =
                msg.sender_type === 'App\\Models\\Admin' &&
                msg.sender_id === CURRENT_ADMIN_ID;

            let html = `
                <div class="message ${isMine ? 'admin' : 'user'}">
                    ${msg.message ?? ''}
            `;

            if (msg.file_url) {
                if (msg.file_type?.startsWith("image")) {
                    html += `<img src="${msg.file_url}" class="rounded mt-2" style="max-width:150px;">`;
                } else {
                    html += `<a href="${msg.file_url}" target="_blank" class="mt-2 d-block">📎 View File</a>`;
                }
            }

            html += `
                <small class="text-muted d-block mt-1">Just now</small>
                </div>
            `;

            document
                .getElementById("chatBox")
                .insertAdjacentHTML("beforeend", html);

            scrollToBottom();
        });
});

</script>

@endsection