{% extends "portal_base.html" %}
{% block title %}Compose · Social{% endblock %}
{% block topbar_title %}Compose & preview{% endblock %}
{% block extra_head %}
<style>
  .media-drop {
    border: 1px dashed var(--monica-border, #cbd5e1);
    border-radius: 8px;
    padding: 14px;
    background: #f8fafc;
  }
  .media-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
  }
  .media-thumb {
    position: relative;
    width: 96px;
    height: 96px;
    border-radius: 8px;
    overflow: hidden;
    background: #e2e8f0;
    border: 1px solid var(--monica-border, #cbd5e1);
  }
  .media-thumb img,
  .media-thumb video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .media-thumb .remove-media {
    position: absolute;
    top: 4px;
    right: 4px;
    border: 0;
    border-radius: 999px;
    width: 22px;
    height: 22px;
    line-height: 22px;
    padding: 0;
    background: rgba(15, 23, 42, 0.75);
    color: #fff;
    cursor: pointer;
    font-size: 14px;
  }
  .media-thumb .media-label {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.65);
    color: #fff;
    font-size: 10px;
    padding: 2px 4px;
    text-align: center;
  }
  #preview-media {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
  }
  #preview-media img,
  #preview-media video {
    max-width: 100%;
    max-height: 280px;
    border-radius: 8px;
    background: #0f172a;
  }
  #preview-media img { object-fit: contain; }
  #media-upload-status { margin-top: 8px; font-size: 13px; }
</style>
{% endblock %}
{% block portal_content %}
{% if not accounts %}
<div class="auth-alert">
  <strong>No social accounts connected.</strong>
  <a href="{% url 'social:account_list' %}">Connect Facebook, Instagram, or LinkedIn</a> first.
</div>
{% endif %}

<div class="split">
  <div class="panel">
    <div class="panel-h">
      <h2>Compose</h2>
      <a class="btn btn-sm btn-ghost" href="{% url 'social:account_list' %}">Manage accounts</a>
    </div>
    <div class="panel-b">
      {% if error %}
      <ul class="portal-flash" style="margin:0 0 12px"><li class="error">{{ error }}</li></ul>
      {% endif %}
      <form method="post" class="form-grid" id="social-compose">
        {% csrf_token %}
        <input type="hidden" name="media_json" id="id_media_json" value="{{ form.media_json }}">
        <div class="field">
          <label for="id_body">Caption</label>
          <textarea id="id_body" name="body" style="min-height:140px"
                    placeholder="Open house this Saturday…">{{ form.body }}</textarea>
          <div class="hint"><span id="char-count">0</span> characters · IG soft limit ~2,200</div>
        </div>
        <div class="field">
          <label for="id_media">Media</label>
          <div class="media-drop">
            <input id="id_media" type="file" accept="image/jpeg,image/png,image/gif,image/webp,video/mp4,video/quicktime,video/webm" multiple>
            <div class="hint" style="margin-top:8px">
              Images (JPEG/PNG/GIF/WebP, ≤8&nbsp;MB) or one video (MP4/MOV/WebM, ≤100&nbsp;MB).
              Instagram requires media. Don’t mix images + video on one post.
            </div>
            <div id="media-upload-status" class="muted" hidden></div>
            <div class="media-thumbs" id="media-thumbs"></div>
          </div>
        </div>
        <div class="field">
          <label>Accounts</label>
          {% for account in accounts %}
          <label class="check-row account-pick">
            <input type="checkbox" name="account_ids" value="{{ account.pk }}"
                   class="account-check"
                   data-platform="{{ account.platform }}"
                   {% if account.pk|stringformat:"s" in form.account_ids %}checked{% endif %}>
            <span class="account-pick-copy">
              <strong>{{ account.display_name }}</strong>
              <span class="muted">{{ account.get_platform_display }}{% if account.external_id %} · {{ account.external_id }}{% endif %}</span>
            </span>
          </label>
          {% empty %}
          <p class="muted">No active accounts.</p>
          {% endfor %}
          {% if accounts %}
          <div class="hint">Name look wrong? <a href="{% url 'social:account_list' %}">Rename it on Social accounts</a>.</div>
          {% endif %}
        </div>
        <div class="form-grid cols-2">
          <div class="field">
            <label for="id_scheduled_for">Schedule for <span class="muted">(optional)</span></label>
            <input id="id_scheduled_for" name="scheduled_for" type="datetime-local" step="60"
                   value="{{ form.scheduled_for }}">
            <div class="hint">Needed only if you click Schedule. Leave blank to Send now.</div>
          </div>
        </div>
        <div style="display:flex;gap:8px;flex-wrap:wrap">
          <button class="btn btn-primary" type="submit" name="action" value="send_now">Send now</button>
          <button class="btn btn-ghost" type="submit" name="action" value="schedule">Schedule</button>
          <button class="btn btn-ghost" type="submit" name="action" value="save">Save draft</button>
        </div>
      </form>
    </div>
  </div>

  {% if 'social_ai' in enabled_features %}
  <div class="panel">
    <div class="panel-h"><h2>AI assist</h2></div>
    <div class="panel-b form-grid">
      <div class="form-grid">
        <div class="field">
          <label for="id_prompt">Prompt</label>
          <textarea id="id_prompt" name="prompt" style="min-height:88px"
                    placeholder="Warm post about this week’s offer…">{{ form.prompt }}</textarea>
        </div>
        <button class="btn btn-ghost" type="button" id="ai-generate" data-url="{% url 'social_ai:generate' %}">Generate draft (Ollama)</button>
        <p class="hint-block" id="ai-status">Generated text fills the caption field. Review before publishing.</p>
      </div>
    </div>
  </div>
  {% endif %}
</div>

<div class="panel">
  <div class="panel-h"><h2>Preview</h2></div>
  <div class="panel-b">
    <div class="preview-pane">
      <div class="muted" id="preview-empty">Preview updates as you type or attach media.</div>
      <div id="preview-body" hidden>
        <div id="preview-media"></div>
        <div id="preview-content" style="white-space:pre-wrap"></div>
      </div>
    </div>
  </div>
</div>

<p class="muted" style="font-size:13px;margin-top:12px">
  <a href="{% url 'social:post_list' %}">View recent posts</a>
</p>
{% endblock %}
{% block extra_js %}

{% if 'social_ai' in enabled_features %}
<script>
(function () {
  var btn = document.getElementById('ai-generate');
  if (!btn) return;
  btn.addEventListener('click', function () {
    var prompt = (document.getElementById('id_prompt') || {}).value || '';
    var status = document.getElementById('ai-status');
    var body = document.querySelector('textarea[name=body]');
    if (!prompt.trim()) { if (status) status.textContent = 'Enter a prompt first.'; return; }
    btn.disabled = true;
    fetch(btn.getAttribute('data-url'), {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'X-CSRFToken': document.querySelector('[name=csrfmiddlewaretoken]').value
      },
      body: JSON.stringify({prompt: prompt})
    }).then(function (r) { return r.json().then(function (d) { return {ok: r.ok, d: d}; }); })
      .then(function (res) {
        if (res.ok && res.d.text && body) { body.value = res.d.text; if (status) status.textContent = 'Draft inserted. Review before publishing.'; }
        else if (status) status.textContent = res.d.error || 'Generate failed.';
      })
      .catch(function () { if (status) status.textContent = 'Generate failed.'; })
      .finally(function () { btn.disabled = false; });
  });
})();
</script>
{% endif %}

<script>
(function () {
  var bodyEl = document.getElementById('id_body');
  var countEl = document.getElementById('char-count');
  var empty = document.getElementById('preview-empty');
  var previewBody = document.getElementById('preview-body');
  var content = document.getElementById('preview-content');
  var previewMedia = document.getElementById('preview-media');
  var when = document.getElementById('id_scheduled_for');
  var composeForm = document.getElementById('social-compose');
  var mediaInput = document.getElementById('id_media');
  var mediaJson = document.getElementById('id_media_json');
  var thumbs = document.getElementById('media-thumbs');
  var statusEl = document.getElementById('media-upload-status');
  var uploadUrl = "{{ media_upload_url|escapejs }}";
  var csrf = (document.querySelector('#social-compose input[name=csrfmiddlewaretoken]') || {}).value || '';

  var mediaItems = [];
  try {
    mediaItems = JSON.parse((mediaJson && mediaJson.value) || '[]') || [];
    if (!Array.isArray(mediaItems)) mediaItems = [];
  } catch (_err) {
    mediaItems = [];
  }

  function setStatus(msg, isError) {
    if (!statusEl) return;
    if (!msg) {
      statusEl.hidden = true;
      statusEl.textContent = '';
      return;
    }
    statusEl.hidden = false;
    statusEl.textContent = msg;
    statusEl.style.color = isError ? '#b91c1c' : '';
  }

  function syncMediaField() {
    if (mediaJson) mediaJson.value = JSON.stringify(mediaItems);
  }

  function renderThumbs() {
    if (!thumbs) return;
    thumbs.innerHTML = '';
    mediaItems.forEach(function (item, idx) {
      var wrap = document.createElement('div');
      wrap.className = 'media-thumb';
      if (item.type === 'video') {
        var vid = document.createElement('video');
        vid.src = item.url;
        vid.muted = true;
        wrap.appendChild(vid);
        var label = document.createElement('div');
        label.className = 'media-label';
        label.textContent = 'Video';
        wrap.appendChild(label);
      } else {
        var img = document.createElement('img');
        img.src = item.url;
        img.alt = item.filename || 'Image';
        wrap.appendChild(img);
      }
      var btn = document.createElement('button');
      btn.type = 'button';
      btn.className = 'remove-media';
      btn.setAttribute('aria-label', 'Remove');
      btn.textContent = '×';
      btn.addEventListener('click', function () {
        mediaItems.splice(idx, 1);
        syncMediaField();
        renderThumbs();
        syncPreview();
      });
      wrap.appendChild(btn);
      thumbs.appendChild(wrap);
    });
  }

  function syncPreview() {
    var body = bodyEl ? bodyEl.value : '';
    if (countEl) countEl.textContent = String(body.length);
    if (!empty || !previewBody || !content || !previewMedia) return;

    previewMedia.innerHTML = '';
    mediaItems.forEach(function (item) {
      if (item.type === 'video') {
        var vid = document.createElement('video');
        vid.src = item.url;
        vid.controls = true;
        vid.playsInline = true;
        previewMedia.appendChild(vid);
      } else {
        var img = document.createElement('img');
        img.src = item.url;
        img.alt = item.filename || 'Image';
        previewMedia.appendChild(img);
      }
    });
    content.textContent = body;

    var hasContent = !!(body || mediaItems.length);
    empty.hidden = hasContent;
    previewBody.hidden = !hasContent;
  }

  function requireScheduleTime(event) {
    var submitter = event.submitter;
    var action = submitter && submitter.name === 'action' ? submitter.value : '';
    if (action !== 'schedule') return;
    if (when && when.value) return;
    event.preventDefault();
    if (when) when.focus();
    window.alert('Pick a date and time to schedule, or choose Send now.');
  }

  function validateBeforeUpload(file) {
    var hasVideo = mediaItems.some(function (m) { return m.type === 'video'; });
    var hasImage = mediaItems.some(function (m) { return m.type === 'image'; });
    var isVideo = (file.type || '').indexOf('video/') === 0;
    var isImage = (file.type || '').indexOf('image/') === 0;
    if (!isVideo && !isImage) {
      return 'Use an image or video file.';
    }
    if (isVideo && hasVideo) return 'Only one video per post.';
    if (isVideo && hasImage) return 'Remove images before attaching a video.';
    if (isImage && hasVideo) return 'Remove the video before attaching images.';
    if (isImage && mediaItems.filter(function (m) { return m.type === 'image'; }).length >= 10) {
      return 'At most 10 images.';
    }
    return '';
  }

  async function uploadFile(file) {
    var err = validateBeforeUpload(file);
    if (err) {
      setStatus(err, true);
      return;
    }
    setStatus('Uploading ' + (file.name || 'file') + '…');
    var fd = new FormData();
    fd.append('media', file);
    try {
      var res = await fetch(uploadUrl, {
        method: 'POST',
        headers: { 'X-CSRFToken': csrf },
        body: fd,
        credentials: 'same-origin'
      });
      var data = await res.json().catch(function () { return {}; });
      if (!res.ok) {
        throw new Error(data.error || ('Upload failed (' + res.status + ')'));
      }
      mediaItems.push(data);
      syncMediaField();
      renderThumbs();
      syncPreview();
      setStatus('Attached ' + (data.filename || data.type) + '.');
    } catch (e) {
      setStatus(e.message || 'Upload failed', true);
    }
  }

  if (mediaInput) {
    mediaInput.addEventListener('change', async function () {
      var files = Array.prototype.slice.call(mediaInput.files || []);
      mediaInput.value = '';
      for (var i = 0; i < files.length; i++) {
        await uploadFile(files[i]);
      }
    });
  }

  if (bodyEl) {
    bodyEl.addEventListener('input', syncPreview);
    bodyEl.addEventListener('keyup', syncPreview);
    bodyEl.addEventListener('change', syncPreview);
  }
  if (composeForm) composeForm.addEventListener('submit', requireScheduleTime);

  var generateForm = document.querySelector('form input[name=action][value=generate]')?.form;
  if (generateForm) {
    generateForm.addEventListener('submit', function () {
      var genMedia = generateForm.querySelector('input[name=media_json]');
      if (genMedia && mediaJson) genMedia.value = mediaJson.value;
      var genBody = generateForm.querySelector('textarea[name=body]');
      // keep account/mode already mirrored server-side on last render
    });
  }

  syncMediaField();
  renderThumbs();
  syncPreview();
})();
</script>
{% endblock %}