{% extends "base.html" %}
{% block title %}Upload to Store — {{ config.INSTANCE_NAME }}{% endblock %}

{% block content %}
<style>
  /* ── Container override ────────────────────────────────────────── */
  .container:has(.upload-page) { max-width: 880px; margin: 0 auto; padding: 16px 32px 48px; }
  .container:has(.upload-page) > main { margin: 0; padding: 0; }

  /* ── Hero (mirrors /setup) ─────────────────────────────────────── */
  .upload-hero {
    background: linear-gradient(135deg, #0073D1 0%, #0056A3 100%);
    border-radius: 12px;
    padding: 32px 36px;
    margin-bottom: 24px;
    box-shadow: 0 4px 16px rgba(0, 115, 209, 0.2);
    color: white;
  }
  .upload-hero .eyebrow {
    font-size: 11px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.8px; color: rgba(255, 255, 255, 0.75);
    margin-bottom: 10px;
  }
  .upload-hero h1 {
    font-size: 30px; font-weight: 700; margin: 0 0 8px;
    color: #fff; letter-spacing: -0.4px;
  }
  .upload-hero .sub { font-size: 14px; color: rgba(255,255,255,0.85); line-height: 1.6; }
  .upload-hero .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
  .upload-hero .pill {
    background: rgba(255,255,255,0.15); padding: 6px 12px;
    border-radius: 6px; font-family: var(--font-mono); font-size: 12px; color: #fff;
  }

  /* ── Progress bar (4-segment style, matches first-time-setup) ──── */
  .progress {
    display: flex; gap: 8px; margin-bottom: 20px;
  }
  .progress .seg {
    flex: 1; height: 4px; border-radius: 2px;
    background: var(--border, #e5e7eb);
    transition: background 0.15s ease;
  }
  .progress .seg.is-done { background: var(--primary, #0073D1); }

  /* ── Card (mirrors /setup) ─────────────────────────────────────── */
  .card {
    background: var(--surface, #fff);
    border: 1px solid var(--border, #e5e7eb);
    border-radius: 12px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    overflow: hidden;
    margin-bottom: 20px;
  }
  .card-header { padding: 22px 24px 0; display: flex; align-items: center; gap: 12px; }
  .card-body { padding: 16px 24px 24px; }
  .step-num {
    width: 26px; height: 26px;
    background: var(--primary, #0073D1); color: #fff;
    border-radius: 50%; display: inline-flex; align-items: center;
    justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0;
  }
  .card-title { font-size: 16px; font-weight: 600; color: var(--text-primary, #111827); }
  .card-sub {
    font-size: 13px; color: var(--text-secondary, #6b7280);
    line-height: 1.6; margin: 0 0 14px;
  }
  .card-sub code {
    background: var(--border-light, #f3f4f6); padding: 1px 6px;
    border-radius: 4px; font-family: var(--font-mono); font-size: 12px;
    color: var(--text-primary, #111827);
  }

  /* ── Form bits ─────────────────────────────────────────────────── */
  .field { margin-bottom: 16px; }
  .field-label {
    display: block; font-size: 13px; font-weight: 500;
    color: var(--text-primary, #111827); margin-bottom: 6px;
  }
  .field-hint { font-size: 12px; color: var(--text-secondary, #6b7280); margin-top: 6px; }
  .field input[type=text],
  .field input[type=url],
  .field textarea,
  .field select {
    width: 100%; padding: 10px 12px;
    border: 1px solid var(--border, #d1d5db); border-radius: 8px;
    font-size: 14px; font-family: var(--font-primary, inherit);
    box-sizing: border-box; background: #fff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
  }
  .field textarea { min-height: 90px; resize: vertical; }
  .field input[type=text]:focus,
  .field input[type=url]:focus,
  .field textarea:focus,
  .field select:focus {
    outline: none; border-color: var(--primary, #0073D1);
    box-shadow: 0 0 0 3px rgba(0, 115, 209, 0.12);
  }

  /* ── Type tiles (radio cards) ──────────────────────────────────── */
  .type-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .type-tiles label {
    cursor: pointer; padding: 14px 12px;
    border: 1px solid var(--border, #e5e7eb); border-radius: 10px;
    text-align: center; transition: all 0.15s ease;
    background: #fff;
  }
  .type-tiles label:hover { border-color: #c7d2fe; }
  .type-tiles label.is-active {
    border-color: var(--primary, #0073D1);
    background: linear-gradient(180deg, rgba(0,115,209,0.06), rgba(0,115,209,0.02));
    box-shadow: 0 0 0 3px rgba(0, 115, 209, 0.12);
  }
  .type-tiles input[type=radio] { display: none; }
  .type-tiles .type-name {
    font-weight: 600; font-size: 14px; color: var(--text-primary, #111827); margin-bottom: 4px;
  }
  .type-tiles .type-hint { font-size: 11px; color: var(--text-secondary, #6b7280); line-height: 1.4; }

  /* ── ZIP drop zone (file input wrapper) ────────────────────────── */
  .file-drop {
    border: 1.5px dashed var(--border, #d1d5db);
    border-radius: 10px; padding: 18px;
    background: var(--background, #f9fafb);
    display: flex; align-items: center; gap: 12px;
    transition: all 0.15s ease;
  }
  .file-drop:hover { border-color: var(--primary, #0073D1); background: #fff; }
  .file-drop.is-dragover {
    border-color: var(--primary, #0073D1); background: #fff;
    box-shadow: 0 0 0 4px rgba(0, 115, 209, 0.15);
    transform: scale(1.005);
  }
  .file-drop.has-file { border-style: solid; border-color: #10b981; background: #f0fdf4; }
  .file-drop .icon {
    width: 36px; height: 36px; border-radius: 8px;
    background: rgba(0, 115, 209, 0.1); color: var(--primary, #0073D1);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; font-size: 16px;
  }
  .file-drop.has-file .icon { background: rgba(16, 185, 129, 0.1); color: #10b981; }
  .file-drop .file-info { flex: 1; min-width: 0; }
  .file-drop .file-info .label { font-size: 13px; font-weight: 500; color: var(--text-primary, #111827); }
  .file-drop .file-info .label .filename { color: var(--primary, #0073D1); margin-left: 6px; }
  .file-drop.has-file .file-info .label { color: #047857; }
  .file-drop .file-info .meta { font-size: 12px; color: var(--text-secondary, #6b7280); margin-top: 2px; }
  .file-drop input[type=file] { display: none; }
  .file-drop button {
    appearance: none; padding: 7px 14px;
    border: 1px solid var(--border, #d1d5db); background: #fff;
    color: var(--text-primary, #111827); border-radius: 8px;
    font-size: 12px; font-weight: 500; cursor: pointer;
    flex-shrink: 0; font-family: var(--font-primary, inherit);
  }
  .file-drop button:hover { border-color: var(--primary, #0073D1); color: var(--primary, #0073D1); }

  /* ── Doc list ──────────────────────────────────────────────────── */
  .doc-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 8px; }
  .doc-item {
    display: flex; align-items: center; gap: 10px; justify-content: space-between;
    padding: 8px 12px; border: 1px solid var(--border, #e5e7eb);
    border-radius: 8px; background: var(--background, #f9fafb); font-size: 13px;
  }
  .doc-item .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-primary, #111827); }
  .doc-item .size { color: var(--text-secondary, #6b7280); flex-shrink: 0; font-size: 12px; }
  .doc-item button {
    appearance: none; border: none; background: transparent;
    color: #b91c1c; cursor: pointer; font-size: 16px;
    padding: 0 4px; line-height: 1;
  }
  .doc-add {
    appearance: none; padding: 8px 14px;
    border: 1px dashed var(--border, #d1d5db); background: transparent;
    color: var(--text-secondary, #6b7280); border-radius: 8px;
    font-size: 13px; cursor: pointer; align-self: flex-start;
    font-family: var(--font-primary, inherit);
  }
  .doc-add:hover { border-color: var(--primary, #0073D1); color: var(--primary, #0073D1); }

  /* ── Buttons (mirror /setup primary CTA) ───────────────────────── */
  .actions { display: flex; gap: 10px; align-items: center; margin-top: 8px; }
  .btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-primary, inherit);
    font-size: 14px; font-weight: 600; color: #fff;
    background: var(--primary, #0073D1); border: none;
    border-radius: 8px; padding: 11px 22px; cursor: pointer;
    transition: all 0.15s ease;
  }
  .btn-primary:hover {
    background: var(--primary-dark, #0056A3);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0, 115, 209, 0.25);
  }
  .btn-primary:disabled { opacity: 0.7; cursor: wait; transform: none; box-shadow: none; }
  .btn-secondary {
    appearance: none; padding: 10px 18px;
    border: 1px solid var(--border, #d1d5db); background: #fff;
    color: var(--text-secondary, #6b7280); border-radius: 8px;
    font-size: 14px; font-weight: 500; cursor: pointer;
    font-family: var(--font-primary, inherit);
    transition: all 0.15s ease;
  }
  .btn-secondary:hover { border-color: var(--primary, #0073D1); color: var(--primary, #0073D1); }
  .btn-link {
    color: var(--text-secondary, #6b7280); text-decoration: none;
    font-size: 13px; padding: 10px 8px;
  }
  .btn-link:hover { color: var(--text-primary, #111827); }

  /* ── Status banner ─────────────────────────────────────────────── */
  /* `display: flex` on .banner overrides the user-agent default for the
     `hidden` attribute, leaving the banner visible even with no error.
     Force the override here so the empty banner stays out of the layout. */
  .banner[hidden] { display: none !important; }
  .banner {
    padding: 12px 16px; border-radius: 8px; margin-bottom: 16px;
    font-size: 13px; line-height: 1.5; display: flex; align-items: center; gap: 10px;
  }
  .banner.error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
  .banner.success { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }
  .banner .ico { flex-shrink: 0; font-size: 16px; }

  /* ── Step swap ─────────────────────────────────────────────────── */
  .step { display: none; }
  .step.is-active { display: block; }
</style>

<div class="upload-page">
  <div class="upload-hero">
    <div class="eyebrow">Store</div>
    <h1>Upload an entity</h1>
    <p class="sub">
      Share a skill, agent, or plugin with everyone on this instance.
      Display name will be suffixed with
      <code style="background: rgba(255,255,255,0.18); padding: 1px 6px; border-radius: 4px; font-family: var(--font-mono); font-size: 12px;">-by-{{ session.user.email.split('@')[0] }}</code>
      so it doesn't collide.
    </p>
  </div>

  <div class="progress">
    <div class="seg is-done" id="seg-1"></div>
    <div class="seg" id="seg-2"></div>
  </div>

  <div id="banner" class="banner error" hidden>
    <span class="ico">!</span><span id="banner-text"></span>
  </div>

  <!-- ─── Step 1: Type + ZIP ──────────────────────────────────────── -->
  <div id="step-1" class="step is-active">
    <div class="card">
      <div class="card-header">
        <div class="step-num">1</div>
        <div class="card-title">Type &amp; ZIP</div>
      </div>
      <div class="card-body">
        <p class="card-sub">Pick what you're uploading and the ZIP archive.
          The server validates the layout when you click <code>Next</code>.</p>

        <div class="field">
          <label class="field-label">Type</label>
          <div class="type-tiles" id="type-tiles">
            <label class="is-active">
              <input type="radio" name="type" value="skill" checked>
              <div class="type-name">Skill</div>
              <div class="type-hint">Folder with SKILL.md</div>
            </label>
            <label>
              <input type="radio" name="type" value="agent">
              <div class="type-name">Agent</div>
              <div class="type-hint">.md file with name + description frontmatter</div>
            </label>
            <label>
              <input type="radio" name="type" value="plugin">
              <div class="type-name">Plugin</div>
              <div class="type-hint">Directory with .claude-plugin/plugin.json</div>
            </label>
          </div>
        </div>

        <div class="field">
          <label class="field-label">ZIP archive</label>
          <label class="file-drop" id="zip-drop">
            <div class="icon">📦</div>
            <div class="file-info">
              <div class="label" id="zip-label">No file selected</div>
              <div class="meta" id="zip-meta">Drag & drop a .zip here, or click Choose file</div>
            </div>
            <input type="file" id="zip" accept=".zip">
            <button type="button" id="zip-pick">Choose file</button>
          </label>
        </div>

        <div class="actions">
          <button type="button" class="btn-primary" id="next-btn">Next →</button>
          <a href="/store" class="btn-link">Cancel</a>
        </div>
      </div>
    </div>
  </div>

  <!-- ─── Step 2: Details ─────────────────────────────────────────── -->
  <div id="step-2" class="step">
    <div class="card">
      <div class="card-header">
        <div class="step-num">2</div>
        <div class="card-title">Details</div>
      </div>
      <div class="card-body">
        <p class="card-sub">Pre-filled from the ZIP's frontmatter — change anything you want.
          Name and description are required; everything below is optional.</p>

        <div class="field">
          <label class="field-label" for="name">Name</label>
          <input type="text" id="name" required placeholder="my-awesome-skill">
          <div class="field-hint">Lowercase letters, digits, hyphens. Max 64 characters.</div>
        </div>

        <div class="field">
          <label class="field-label" for="description">Description</label>
          <textarea id="description" placeholder="What does it do?"></textarea>
        </div>

        <div class="field">
          <label class="field-label" for="category">Category</label>
          <select id="category">
            <option value="">— None —</option>
            {% for cat in categories %}
            <option value="{{ cat }}">{{ cat }}</option>
            {% endfor %}
          </select>
          <div class="field-hint">Subject area of your entity — helps people filter the Store.</div>
        </div>

        <div class="field">
          <label class="field-label">Cover photo <span style="color:var(--text-secondary,#6b7280);font-weight:400;">(optional)</span></label>
          <label class="file-drop" id="photo-drop">
            <div class="icon">🖼</div>
            <div class="file-info">
              <div class="label" id="photo-label">No photo</div>
              <div class="meta">Drag & drop or click Choose · JPG, PNG, WebP · Max 5 MB</div>
            </div>
            <input type="file" id="photo" accept="image/jpeg,image/png,image/webp">
            <button type="button" id="photo-pick">Choose</button>
          </label>
        </div>

        <div class="field">
          <label class="field-label" for="video_url">Video URL <span style="color:var(--text-secondary,#6b7280);font-weight:400;">(optional)</span></label>
          <input type="url" id="video_url" placeholder="https://...">
        </div>

        <div class="field">
          <label class="field-label">Documentation <span style="color:var(--text-secondary,#6b7280);font-weight:400;">(optional)</span></label>
          <div class="doc-list" id="doc-list"></div>
          <input type="file" id="doc-input" hidden>
          <button type="button" class="doc-add" id="add-doc-btn">+ Add file</button>
          <div class="field-hint">Each file max 10 MB. Add as many as you want.</div>
        </div>

        <div class="actions">
          <button type="button" class="btn-primary" id="finish-btn">Finish</button>
          <button type="button" class="btn-secondary" id="back-btn">← Back</button>
        </div>
      </div>
    </div>
  </div>
</div>

<script>
const banner = document.getElementById('banner');
const bannerText = document.getElementById('banner-text');
const nextBtn = document.getElementById('next-btn');
const finishBtn = document.getElementById('finish-btn');
const backBtn = document.getElementById('back-btn');
const zipInput = document.getElementById('zip');
const zipPick = document.getElementById('zip-pick');
const zipDrop = document.getElementById('zip-drop');
const zipLabel = document.getElementById('zip-label');
const zipMeta = document.getElementById('zip-meta');
const photoInput = document.getElementById('photo');
const photoPick = document.getElementById('photo-pick');
const photoDrop = document.getElementById('photo-drop');
const photoLabel = document.getElementById('photo-label');
const addDocBtn = document.getElementById('add-doc-btn');
const docInput = document.getElementById('doc-input');
const docList = document.getElementById('doc-list');

let zipFile = null;
let docs = [];

// Server returns short machine codes in `detail`. Map them to human-friendly
// sentences here. Any unknown code falls back to a generic prefix + the raw
// code so debugging stays possible without leaking jargon.
const ERROR_MESSAGES = {
  // Step 1 — validation
  invalid_type: 'Pick one of: skill, agent, or plugin.',
  zip_invalid: 'That file isn\'t a valid ZIP archive.',
  zip_unsafe_path: 'The ZIP contains a path that escapes the archive — refuse to extract.',
  zip_missing_skill_md: 'A Skill ZIP must contain a SKILL.md file.',
  zip_missing_agent_md_with_frontmatter:
    'An Agent ZIP must contain a Markdown file with name + description in YAML frontmatter.',
  zip_missing_claude_plugin_json:
    'A Plugin ZIP must contain a .claude-plugin/plugin.json file at its root.',
  plugin_json_invalid: 'The .claude-plugin/plugin.json file is not valid JSON.',
  zip_looks_like_skill:
    'This ZIP contains a SKILL.md — looks like a Skill, not an Agent. Switch the type to Skill or remove SKILL.md.',
  zip_looks_like_plugin:
    'This ZIP contains a .claude-plugin/plugin.json — looks like a Plugin, not the type you picked. Switch the type to Plugin.',

  // Step 1 + 2 — file size
  file_too_large: 'File too large — max 50 MB for the ZIP, 5 MB for photos, 10 MB per doc.',

  // Step 2 — metadata
  missing_name:
    'Name is required. Either fill it in here or add a `name:` field to your frontmatter.',
  invalid_name_format:
    'Name must be lowercase letters, digits, and hyphens only (max 64 characters).',
  invalid_category: 'Pick a category from your own groups, or leave it blank.',
  invalid_email:
    'Couldn\'t derive a username from your email. Contact your administrator.',
  conflict_owner_name:
    'You already have a Store entity with this name. Each owner needs unique names — pick a different one or delete the existing entity first.',

  // Step 2 — photo
  photo_unsupported_format: 'Photo must be JPG, PNG, or WebP.',

  // Other
  entity_not_found: 'That entity no longer exists.',
  not_owner: 'You don\'t own this entity, so you can\'t change it.',
};

function humanizeError(detail) {
  if (!detail) return 'Something went wrong. Please try again.';
  const s = String(detail);
  if (ERROR_MESSAGES[s]) return ERROR_MESSAGES[s];
  // Codes with a parameter (e.g. "unknown_type:foo")
  const head = s.split(':', 1)[0];
  if (ERROR_MESSAGES[head]) return ERROR_MESSAGES[head];
  // Last resort — show a friendly wrapper plus the raw token.
  return 'Upload failed: ' + s;
}

function showError(msg) {
  banner.className = 'banner error';
  banner.firstElementChild.textContent = '!';
  bannerText.textContent = msg;
  banner.hidden = false;
}
function clearBanner() { banner.hidden = true; }

function showStep(n) {
  document.getElementById('step-1').classList.toggle('is-active', n === 1);
  document.getElementById('step-2').classList.toggle('is-active', n === 2);
  document.getElementById('seg-2').classList.toggle('is-done', n >= 2);
  clearBanner();
  window.scrollTo({top: 0, behavior: 'smooth'});
}

// Type tiles
document.querySelectorAll('#type-tiles label').forEach(lbl => {
  lbl.addEventListener('click', () => {
    document.querySelectorAll('#type-tiles label').forEach(l => l.classList.remove('is-active'));
    lbl.classList.add('is-active');
  });
});

// Generic drop-zone wiring — used for both the ZIP archive and the cover
// photo. The two differ only in their accepted MIME/extension and the
// onAccept callback that updates page state.
function wireDropZone(dropEl, fileInput, pickBtn, validate, onAccept) {
  // Click anywhere on the zone (except the explicit button — which already
  // fires its own click) opens the file picker.
  pickBtn.addEventListener('click', (e) => { e.stopPropagation(); fileInput.click(); });
  dropEl.addEventListener('click', (e) => {
    if (e.target.tagName !== 'BUTTON') fileInput.click();
  });
  fileInput.addEventListener('change', () => {
    if (fileInput.files[0]) handle(fileInput.files[0]);
  });

  function handle(f) {
    const err = validate(f);
    if (err) { showError(err); return; }
    // Sync the <input> so the form-submit fallback works too.
    try {
      const dt = new DataTransfer();
      dt.items.add(f);
      fileInput.files = dt.files;
    } catch (_) {}
    dropEl.classList.remove('is-dragover');
    onAccept(f);
    clearBanner();
  }

  ['dragenter', 'dragover'].forEach(evt => {
    dropEl.addEventListener(evt, (e) => {
      e.preventDefault();
      e.stopPropagation();
      if (e.dataTransfer) e.dataTransfer.dropEffect = 'copy';
      dropEl.classList.add('is-dragover');
    });
  });
  ['dragleave', 'dragend'].forEach(evt => {
    dropEl.addEventListener(evt, (e) => {
      // dragleave fires when entering a child; only un-highlight when the
      // pointer actually leaves the drop zone.
      if (evt === 'dragleave' && dropEl.contains(e.relatedTarget)) return;
      dropEl.classList.remove('is-dragover');
    });
  });
  dropEl.addEventListener('drop', (e) => {
    e.preventDefault();
    e.stopPropagation();
    dropEl.classList.remove('is-dragover');
    const file = e.dataTransfer && e.dataTransfer.files && e.dataTransfer.files[0];
    if (file) handle(file);
  });
}

// Page-level guard: dropping anywhere outside the zones shouldn't navigate
// away from the page (browser default behavior for files).
['dragover', 'drop'].forEach(evt => {
  window.addEventListener(evt, (e) => { e.preventDefault(); });
});

// ZIP zone
wireDropZone(
  zipDrop, zipInput, zipPick,
  (f) => /\.zip$/i.test(f.name) ? null : 'Only .zip files are accepted.',
  (f) => {
    zipFile = f;
    zipDrop.classList.add('has-file');
    zipLabel.innerHTML = 'Selected:<span class="filename">' + escapeHtml(f.name) + '</span>';
    zipMeta.textContent = formatSize(f.size);
  },
);

// Photo zone — accepts JPG / PNG / WebP up to 5 MB.
const PHOTO_MAX = 5 * 1024 * 1024;
wireDropZone(
  photoDrop, photoInput, photoPick,
  (f) => {
    if (!/^image\/(jpeg|png|webp)$/i.test(f.type) &&
        !/\.(jpe?g|png|webp)$/i.test(f.name)) {
      return 'Photo must be a JPG, PNG, or WebP image.';
    }
    if (f.size > PHOTO_MAX) {
      return 'Photo too large — max 5 MB.';
    }
    return null;
  },
  (f) => {
    photoDrop.classList.add('has-file');
    photoLabel.innerHTML = 'Selected:<span class="filename">' + escapeHtml(f.name) + '</span>';
  },
);

// Docs
addDocBtn.addEventListener('click', () => docInput.click());
docInput.addEventListener('change', () => {
  for (const f of docInput.files) docs.push(f);
  docInput.value = '';
  renderDocs();
});

function renderDocs() {
  docList.innerHTML = '';
  docs.forEach((f, i) => {
    const item = document.createElement('div');
    item.className = 'doc-item';
    item.innerHTML = `
      <span class="name">${escapeHtml(f.name)}</span>
      <span class="size">${formatSize(f.size)}</span>
      <button type="button" data-i="${i}" title="Remove">✕</button>`;
    docList.appendChild(item);
  });
  docList.querySelectorAll('button[data-i]').forEach(btn => {
    btn.addEventListener('click', () => {
      docs.splice(parseInt(btn.dataset.i, 10), 1);
      renderDocs();
    });
  });
}

// Step 1 → preview
nextBtn.addEventListener('click', async () => {
  clearBanner();
  if (!zipFile) { showError('Please choose a ZIP file.'); return; }
  const type = document.querySelector('input[name=type]:checked').value;

  nextBtn.disabled = true;
  nextBtn.textContent = 'Validating…';
  try {
    const fd = new FormData();
    fd.append('file', zipFile);
    fd.append('type', type);
    const res = await fetch('/api/store/entities/preview', {method: 'POST', body: fd});
    if (!res.ok) {
      let msg = 'Validation failed.';
      try {
        const j = await res.json();
        if (j.detail) msg = humanizeError(j.detail);
      } catch(_) {}
      showError(msg);
      return;
    }
    const preview = await res.json();
    document.getElementById('name').value = preview.name || '';
    document.getElementById('description').value = preview.description || '';
    showStep(2);
  } catch (err) {
    showError(String(err));
  } finally {
    nextBtn.disabled = false;
    nextBtn.textContent = 'Next →';
  }
});

backBtn.addEventListener('click', () => showStep(1));

// Step 2 → final create
finishBtn.addEventListener('click', async () => {
  clearBanner();
  const name = document.getElementById('name').value.trim();
  if (!name) { showError('Name is required.'); return; }
  const type = document.querySelector('input[name=type]:checked').value;

  finishBtn.disabled = true;
  finishBtn.textContent = 'Uploading…';
  try {
    const fd = new FormData();
    fd.append('file', zipFile);
    fd.append('type', type);
    fd.append('name', name);
    fd.append('description', document.getElementById('description').value);
    const cat = document.getElementById('category').value;
    if (cat) fd.append('category', cat);
    const vurl = document.getElementById('video_url').value.trim();
    if (vurl) fd.append('video_url', vurl);
    const photo = document.getElementById('photo').files[0];
    if (photo) fd.append('photo', photo);
    for (const d of docs) fd.append('docs', d);

    const res = await fetch('/api/store/entities', {method: 'POST', body: fd});
    if (res.ok) {
      const entity = await res.json();
      window.location = `/store/${encodeURIComponent(entity.id)}`;
      return;
    }
    let msg = 'Upload failed.';
    try {
      const j = await res.json();
      if (j.detail) msg = humanizeError(j.detail);
    } catch(_) {}
    showError(msg);
  } catch (err) {
    showError(String(err));
  } finally {
    finishBtn.disabled = false;
    finishBtn.textContent = 'Finish';
  }
});

function escapeHtml(s) {
  return String(s).replace(/[&<>"']/g, ch => ({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'}[ch]));
}
function formatSize(n) {
  if (n < 1024) return n + ' B';
  if (n < 1024 * 1024) return (n / 1024).toFixed(1) + ' KB';
  return (n / 1024 / 1024).toFixed(1) + ' MB';
}
</script>
{% endblock %}