cv-site/templates/partials/widgets/chat-widget.html

{{define "chat-widget"}}
{{if .ChatEnabled}}
<!-- AI Chat Widget — CV Assistant Mascot -->
<button
    id="chat-toggle-btn"
    class="chat-toggle-btn no-print has-tooltip tooltip-left"
    aria-label="{{if eq .Lang "es"}}Asistente del CV{{else}}CV Assistant{{end}}"
    data-tooltip="{{if eq .Lang "es"}}Asistente del CV{{else}}CV Assistant{{end}}"
    onclick="toggleChatPanel()">
    <iconify-icon icon="mdi:robot-happy-outline" class="chat-icon-open"></iconify-icon>
    <iconify-icon icon="mdi:close" class="chat-icon-close"></iconify-icon>
</button>

<div id="chat-panel" class="chat-panel no-print">
    <div class="chat-header">
        <iconify-icon icon="mdi:robot-happy-outline"></iconify-icon>
        <span>{{if eq .Lang "es"}}Asistente del CV{{else}}CV Assistant{{end}}</span>
        <div class="chat-header-actions">
            <button class="chat-mode-btn active" data-mode="" title="{{if eq .Lang "es"}}Compacto{{else}}Compact{{end}}" onclick="setChatSize('')">
                <iconify-icon icon="mdi:message-outline"></iconify-icon>
            </button>
            <button class="chat-mode-btn" data-mode="chat-half" title="{{if eq .Lang "es"}}Panel lateral{{else}}Side panel{{end}}" onclick="setChatSize('chat-half')">
                <iconify-icon icon="mdi:page-layout-sidebar-right"></iconify-icon>
            </button>
            <button class="chat-mode-btn" data-mode="chat-float" title="{{if eq .Lang "es"}}Flotante — arrastra para mover{{else}}Floating — drag to move{{end}}" onclick="setChatSize('chat-float')">
                <iconify-icon icon="mdi:cursor-move"></iconify-icon>
            </button>
            <button class="chat-mode-btn" data-mode="chat-full" title="{{if eq .Lang "es"}}Pantalla completa{{else}}Full screen{{end}}" onclick="setChatSize('chat-full')">
                <iconify-icon icon="mdi:arrow-expand-all"></iconify-icon>
            </button>
            <span class="chat-header-divider"></span>
            <button class="chat-mode-btn"
                title="{{if eq .Lang "es"}}Ayuda{{else}}Help{{end}}"
                commandfor="chat-help-modal"
                command="show-modal">
                <iconify-icon icon="mdi:help-circle-outline"></iconify-icon>
            </button>
        </div>
    </div>

    <div id="chat-messages" class="chat-messages">
        <div class="chat-row chat-row-bot">
            <div class="chat-avatar"><iconify-icon icon="mdi:robot-happy-outline"></iconify-icon></div>
            <div class="chat-msg">{{if eq .Lang "es"}}¡Hola! Pregúntame lo que quieras sobre este CV.{{else}}Hi! Ask me anything about this CV.{{end}}</div>
        </div>
    </div>

    <!-- Typing / Status Indicator -->
    <div id="chat-typing" class="chat-typing">
        <span id="chat-status-text" class="chat-status-text" style="display:none"></span>
        <span class="chat-typing-dots">
            <span class="chat-typing-dot"></span>
            <span class="chat-typing-dot"></span>
            <span class="chat-typing-dot"></span>
        </span>
    </div>

    <!-- Suggested Questions -->
    <div class="chat-suggestions">
        {{if eq .Lang "es"}}
        <button type="button" class="chat-chip" onclick="sendChatQuestion('¿Qué proyectos en Go ha hecho?')">¿Proyectos en Go?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('¿Cuántos años de experiencia tiene?')">¿Años de experiencia?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('¿En qué empresas ha trabajado?')">¿Empresas?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('¿Conoce React?')">¿Conoce React?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('¿Qué certificaciones tiene?')">¿Certificaciones?</button>
        {{else}}
        <button type="button" class="chat-chip" onclick="sendChatQuestion('What Go projects has he built?')">Go projects?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('How many years of experience?')">Years of experience?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('What companies has he worked at?')">Companies?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('Does he know React?')">Knows React?</button>
        <button type="button" class="chat-chip" onclick="sendChatQuestion('What certifications?')">Certifications?</button>
        {{end}}
    </div>

    <form id="chat-form" class="chat-input-area"
        hx-post="/api/chat"
        hx-target="#chat-messages"
        hx-swap="beforeend scroll:#chat-messages:bottom"
        hx-indicator="#chat-typing"
        hx-request='{"timeout":120000}'>
        <input type="hidden" id="chat-session-id" name="session_id" value="">
        <input type="hidden" name="lang" value="{{.Lang}}">
        <input
            type="text"
            id="chat-input"
            name="message"
            class="chat-input"
            placeholder="{{if eq .Lang "es"}}Pregunta algo sobre el CV...{{else}}Ask something about the CV...{{end}}"
            autocomplete="off">
        <button type="submit" class="chat-send-btn" aria-label="Send">
            <iconify-icon icon="mdi:send"></iconify-icon>
        </button>
    </form>
</div>

<!-- Chat JavaScript — all interactions in plain JS, no Hyperscript -->
<script>
// Chat model readiness state
var chatModelReady = false;
var chatWarmedUp = false;

// Poll model status until ready
function pollChatStatus() {
    fetch('/api/chat/status').then(function(r) { return r.json(); }).then(function(data) {
        if (data.ready) {
            chatModelReady = true;
            var statusEl = document.getElementById('chat-status-text');
            if (statusEl) statusEl.style.display = 'none';
        } else if (data.warming) {
            setTimeout(pollChatStatus, 2000);
        }
    }).catch(function() {});
}

// Trigger warmup on page load and start polling
(function() {
    if (!chatWarmedUp) {
        chatWarmedUp = true;
        fetch('/api/chat/warmup', { method: 'POST' }).catch(function() {});
        pollChatStatus();
    }
})();

// Toggle chat panel open/close
function toggleChatPanel() {
    var panel = document.getElementById('chat-panel');
    var btn = document.getElementById('chat-toggle-btn');
    panel.classList.toggle('chat-open');
    btn.classList.toggle('mascot-active');
    if (panel.classList.contains('chat-open')) {
        document.getElementById('chat-input').focus();
    }
}

// Show user message bubble immediately in chat
var chatBubblePending = false;
function appendUserBubble(text) {
    var messages = document.getElementById('chat-messages');
    var row = document.createElement('div');
    row.className = 'chat-row chat-row-user';
    row.innerHTML = '<div class="chat-msg">' + text.replace(/</g, '&lt;').replace(/>/g, '&gt;') + '</div>'
        + '<div class="chat-avatar chat-avatar-user"><iconify-icon icon="mdi:account"></iconify-icon></div>';
    messages.appendChild(row);
    messages.scrollTop = messages.scrollHeight;
    chatBubblePending = true;
}

// Send a question immediately (from chip click) — show bubble, clear input, send
function sendChatQuestion(question) {
    appendUserBubble(question);
    var input = document.getElementById('chat-input');
    var form = document.getElementById('chat-form');
    input.value = question;
    htmx.trigger(form, 'submit');
    input.value = '';
}

// Prefill input from help modal (user must click Send)
function closeChatHelpAndAsk(question) {
    document.getElementById('chat-help-modal').close();
    var panel = document.getElementById('chat-panel');
    var btn = document.getElementById('chat-toggle-btn');
    if (!panel.classList.contains('chat-open')) {
        panel.classList.add('chat-open');
        btn.classList.add('mascot-active');
    }
    var input = document.getElementById('chat-input');
    input.value = question;
    input.focus();
}

// Form submit — show user bubble for manual typing, clear input
document.addEventListener('htmx:beforeRequest', function(event) {
    if (event.detail.elt && event.detail.elt.id === 'chat-form') {
        var input = document.getElementById('chat-input');
        var msg = input.value.trim();
        // Chips already added their bubble; manual typing needs one
        if (msg && !chatBubblePending) {
            appendUserBubble(msg);
        }
        chatBubblePending = false;
        input.value = '';
        // Show initializing or typing indicator
        var statusEl = document.getElementById('chat-status-text');
        var dotsEl = document.querySelector('.chat-typing-dots');
        if (!chatModelReady && statusEl && dotsEl) {
            statusEl.textContent = '{{if eq .Lang "es"}}Inicializando modelo IA…{{else}}Initializing AI model…{{end}}';
            statusEl.style.display = 'inline';
            dotsEl.style.display = 'none';
        } else if (statusEl && dotsEl) {
            statusEl.style.display = 'none';
            dotsEl.style.display = 'inline-flex';
        }
    }
});

// Reset indicator after HTMX request completes
document.addEventListener('htmx:afterRequest', function(event) {
    if (event.detail.elt && event.detail.elt.id === 'chat-form') {
        document.getElementById('chat-input').value = '';
        chatModelReady = true;
        var statusEl = document.getElementById('chat-status-text');
        if (statusEl) statusEl.style.display = 'none';
        var dotsEl = document.querySelector('.chat-typing-dots');
        if (dotsEl) dotsEl.style.display = 'inline-flex';
    }
});

// Set chat panel size
function setChatSize(size) {
    var panel = document.getElementById('chat-panel');
    panel.classList.remove('chat-half', 'chat-full', 'chat-float');
    // Reset all inline styles from drag/resize
    panel.style.top = '';
    panel.style.left = '';
    panel.style.right = '';
    panel.style.bottom = '';
    panel.style.width = '';
    panel.style.height = '';
    if (size) panel.classList.add(size);
    // Update active button
    document.querySelectorAll('.chat-mode-btn[data-mode]').forEach(function(btn) {
        btn.classList.toggle('active', btn.getAttribute('data-mode') === size);
    });
    // Enable/disable drag
    if (size === 'chat-float') {
        enableChatDrag(panel);
    } else {
        disableChatDrag(panel);
    }
}

// Drag support for floating mode
var chatDragState = { dragging: false, offsetX: 0, offsetY: 0 };

function enableChatDrag(panel) {
    var header = panel.querySelector('.chat-header');
    header.style.cursor = 'grab';
    header.addEventListener('mousedown', chatDragStart);
    header.addEventListener('touchstart', chatDragTouchStart, { passive: false });
}

function disableChatDrag(panel) {
    var header = panel.querySelector('.chat-header');
    header.style.cursor = '';
    header.removeEventListener('mousedown', chatDragStart);
    header.removeEventListener('touchstart', chatDragTouchStart);
}

function chatDragStart(e) {
    if (e.target.closest('button')) return;
    var panel = document.getElementById('chat-panel');
    chatDragState.dragging = true;
    chatDragState.offsetX = e.clientX - panel.getBoundingClientRect().left;
    chatDragState.offsetY = e.clientY - panel.getBoundingClientRect().top;
    panel.classList.add('chat-dragging');
    document.addEventListener('mousemove', chatDragMove);
    document.addEventListener('mouseup', chatDragEnd);
    panel.querySelector('.chat-header').style.cursor = 'grabbing';
    e.preventDefault();
}

function chatDragTouchStart(e) {
    if (e.target.closest('button')) return;
    var panel = document.getElementById('chat-panel');
    var touch = e.touches[0];
    chatDragState.dragging = true;
    chatDragState.offsetX = touch.clientX - panel.getBoundingClientRect().left;
    chatDragState.offsetY = touch.clientY - panel.getBoundingClientRect().top;
    panel.classList.add('chat-dragging');
    document.addEventListener('touchmove', chatDragTouchMove, { passive: false });
    document.addEventListener('touchend', chatDragEnd);
    e.preventDefault();
}

function chatDragMove(e) {
    if (!chatDragState.dragging) return;
    var panel = document.getElementById('chat-panel');
    panel.style.left = (e.clientX - chatDragState.offsetX) + 'px';
    panel.style.top = (e.clientY - chatDragState.offsetY) + 'px';
    panel.style.right = 'auto';
    panel.style.bottom = 'auto';
}

function chatDragTouchMove(e) {
    if (!chatDragState.dragging) return;
    var touch = e.touches[0];
    var panel = document.getElementById('chat-panel');
    panel.style.left = (touch.clientX - chatDragState.offsetX) + 'px';
    panel.style.top = (touch.clientY - chatDragState.offsetY) + 'px';
    panel.style.right = 'auto';
    panel.style.bottom = 'auto';
    e.preventDefault();
}

function chatDragEnd() {
    chatDragState.dragging = false;
    var panel = document.getElementById('chat-panel');
    panel.classList.remove('chat-dragging');
    panel.querySelector('.chat-header').style.cursor = 'grab';
    document.removeEventListener('mousemove', chatDragMove);
    document.removeEventListener('mouseup', chatDragEnd);
    document.removeEventListener('touchmove', chatDragTouchMove);
    document.removeEventListener('touchend', chatDragEnd);
}

// Navigate from chat link to CV section, then highlight
function scrollToCV(link) {
    var anchor = link.getAttribute('href');
    var target = document.querySelector(anchor);
    if (target) {
        target.scrollIntoView({ behavior: 'smooth', block: 'center' });
        target.classList.add('chat-highlight');
        setTimeout(function() { target.classList.remove('chat-highlight'); }, 2000);
    }
    return false;
}
</script>
{{end}}
{{end}}