@extends('sur-mesure.layouts.app')

@section('title', __('surmesure.chat'))

@section('styles')
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css">

    <style>
        .smchat-main { padding: 26px 0; width: 100%; box-sizing: border-box; }
        .smchat-card {
            display: flex; flex-direction: column; width: 100%;
            height: calc(100vh - 210px); min-height: 520px;
            background: #fff; border: 1px solid #ece6d2; border-radius: 18px;
            overflow: hidden; box-shadow: 0 12px 32px rgba(0,0,0,.07);
        }
        .smchat-header {
            display: flex; align-items: flex-start; justify-content: space-between; gap: 14px;
            padding: 20px 24px; background: linear-gradient(135deg, #1f1f1f, #3a3a3a); color: #fff;
        }
        .smchat-header h2 { font-size: 19px; margin: 6px 0 4px; font-weight: 800; }
        .smchat-header p { font-size: 13px; opacity: .8; margin: 0; }
        .smchat-badge {
            display: inline-block; font-size: 11px; text-transform: uppercase; letter-spacing: .5px;
            background: #C3AD66; color: #1f1f1f; padding: 3px 10px; border-radius: 999px; font-weight: 700;
        }
        .smchat-status { display: flex; align-items: center; gap: 7px; font-size: 13px; white-space: nowrap; }
        .smchat-status span { width: 9px; height: 9px; border-radius: 50%; background: #28c76f; box-shadow: 0 0 0 4px rgba(40,199,111,.25); }
        .smchat-messages {
            flex: 1; overflow-y: auto; padding: 22px; background: #faf8f1;
            display: flex; flex-direction: column; gap: 12px;
        }
        .smchat-empty { margin: auto; text-align: center; color: #999; font-size: 14px; }
        .smchat-msg {
            max-width: 72%; padding: 11px 15px; border-radius: 16px;
            font-size: 14px; line-height: 1.45; word-wrap: break-word; box-shadow: 0 4px 14px rgba(0,0,0,.05);
        }
        .smchat-msg small { display: block; margin-top: 5px; font-size: 11px; opacity: .55; }
        .smchat-msg.me { align-self: flex-end; background: #C3AD66; color: #1f1f1f; border-bottom-right-radius: 5px; }
        .smchat-msg.admin { align-self: flex-start; background: #fff; border: 1px solid #ece6d2; color: #222; border-bottom-left-radius: 5px; }
        .smchat-form { display: flex; gap: 12px; padding: 16px; border-top: 1px solid #ece6d2; background: #fff; }
        .smchat-form input { flex: 1; border: 1px solid #C3AD66; border-radius: 999px; padding: 13px 20px; font-size: 14px; outline: none; }
        .smchat-form input:focus { border-color: #1f1f1f; }
        .smchat-form button {
            flex: 0 0 auto; width: 50px; height: 50px; border: none; border-radius: 50%;
            background: #1f1f1f; color: #fff; font-size: 17px; cursor: pointer; transition: background .2s;
        }
        .smchat-form button:hover { background: #C3AD66; color: #1f1f1f; }
        @media (max-width: 992px) { .smchat-card { height: calc(100vh - 150px); min-height: 480px; } }
    </style>
@endsection

@section('content')
    <main class="smchat-main">
        <div class="smchat-card">
            <div class="smchat-header">
                <div>
                    <span class="smchat-badge">{{ __('surmesure.chat_badge') }}</span>
                    <h2>{{ __('surmesure.chat_title') }}</h2>
                    <p>{{ __('surmesure.chat_subtitle') }}</p>
                </div>
                <div class="smchat-status"><span></span> {{ __('surmesure.chat_online') }}</div>
            </div>

            <div id="smChatMessages" class="smchat-messages">
                <div class="smchat-empty">{{ __('surmesure.chat_loading') }}</div>
            </div>

            <form id="smChatForm" class="smchat-form">
                @csrf
                <input type="text" id="smChatInput" placeholder="{{ __('surmesure.chat_placeholder') }}" autocomplete="off">
                <button type="submit" aria-label="{{ __('surmesure.chat_send') }}"><i class="fa-regular fa-paper-plane"></i></button>
            </form>
        </div>
    </main>
@endsection

@section('scripts')
    <script>
        document.addEventListener('DOMContentLoaded', function () {
            const box = document.getElementById('smChatMessages');
            const form = document.getElementById('smChatForm');
            const input = document.getElementById('smChatInput');
            if (!box || !form || !input) return;

            const csrf = document.querySelector('meta[name="csrf-token"]')?.content
                || form.querySelector('input[name="_token"]').value;

            let lastId = 0;
            let firstLoad = true;

            function escapeHtml(value) {
                const div = document.createElement('div');
                div.textContent = value ?? '';
                return div.innerHTML;
            }

            function render(messages) {
                const atBottom = box.scrollHeight - box.scrollTop - box.clientHeight < 60;
                box.innerHTML = '';

                if (!messages.length) {
                    box.innerHTML = '<div class="smchat-empty">' + @json(__('surmesure.chat_empty')) + '</div>';
                    return;
                }

                messages.forEach(m => {
                    const div = document.createElement('div');
                    div.className = 'smchat-msg ' + (m.sender_role === 'maker' ? 'me' : 'admin');
                    div.innerHTML = `<div>${escapeHtml(m.body)}</div><small>${escapeHtml(m.created_at)}</small>`;
                    box.appendChild(div);
                });

                if (firstLoad || atBottom) box.scrollTop = box.scrollHeight;
                lastId = messages[messages.length - 1].id;
            }

            async function loadMessages() {
                try {
                    const res = await fetch("{{ route('sur-mesure.chat.messages') }}", {
                        headers: { 'Accept': 'application/json', 'X-CSRF-TOKEN': csrf }
                    });
                    const data = await res.json();
                    const newLast = data.messages.length ? data.messages[data.messages.length - 1].id : 0;

                    if (firstLoad || newLast !== lastId || box.querySelector('.smchat-empty')) {
                        render(data.messages);
                        firstLoad = false;
                    }
                } catch (e) {
                    console.error(e);
                }
            }

            form.addEventListener('submit', async function (e) {
                e.preventDefault();

                const text = input.value.trim();
                if (!text) return;
                input.value = '';

                try {
                    await fetch("{{ route('sur-mesure.chat.send') }}", {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json', 'X-CSRF-TOKEN': csrf, 'Accept': 'application/json' },
                        body: JSON.stringify({ message: text })
                    });
                    await loadMessages();
                } catch (e) {
                    console.error(e);
                }
            });

            loadMessages();
            setInterval(loadMessages, 3000);
        });
    </script>
@endsection