{% extends "base.html" %}

{% block title %}Sources - Context7 Docs{% endblock %}

{% block content %}
<h2>Git Repository Sources</h2>

<div class="status-message">Add a Git repository, browse its structure, select paths to include, then save and sync.</div>

<!-- Step 1: Enter repo details and browse -->
<div class="create-form">
  <h3>Add Git Source</h3>

  <div style="display:flex;gap:10px;flex-wrap:wrap;margin-bottom:8px;">
    <div style="flex:2;min-width:220px;">
      <label for="browse_url" style="display:block;font-weight:bold;margin-bottom:4px;">Repository URL</label>
      <input type="text" id="browse_url" placeholder="https://github.com/user/repo.git"
             style="width:100%;box-sizing:border-box;padding:8px;border:1px solid #ccc;border-radius:4px;">
    </div>
    <div style="flex:0 0 120px;">
      <label for="browse_branch" style="display:block;font-weight:bold;margin-bottom:4px;">Branch</label>
      <input type="text" id="browse_branch" value="main"
             style="width:100%;box-sizing:border-box;padding:8px;border:1px solid #ccc;border-radius:4px;">
    </div>
    <div style="flex:0 0 auto;align-self:flex-end;padding-bottom:1px;">
      <button type="button" id="browse-btn" class="btn btn-secondary" onclick="browseRepo()">Browse Repository</button>
    </div>
  </div>

  <!-- Tree viewer -->
  <div id="tree-section" style="display:none;margin-top:12px;">
    <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;">
      <strong>Select paths to include:</strong>
      <span>
        <button type="button" class="btn btn-sm btn-info" onclick="selectAll()">Select All Dirs</button>
        <button type="button" class="btn btn-sm" style="background:#888;color:#fff;" onclick="clearAll()">Clear</button>
      </span>
    </div>
    <div id="tree-container"
         style="border:1px solid #ccc;border-radius:4px;padding:10px;max-height:380px;overflow-y:auto;background:#fafafa;font-family:monospace;font-size:0.88rem;">
    </div>
  </div>

  <!-- Step 2: Library details (shown after browse) -->
  <div id="save-section" style="display:none;margin-top:16px;">
    <form method="post" action="/sources/add" id="save-form">
      <input type="hidden" id="include_paths" name="include_paths" value="">

      <div style="display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px;">
        <div>
          <label style="display:block;font-weight:bold;margin-bottom:4px;">Library ID <span style="color:red;">*</span></label>
          <input type="text" name="library_id" id="lib_id" placeholder="my-project" required
                 style="width:100%;box-sizing:border-box;padding:8px;border:1px solid #ccc;border-radius:4px;">
        </div>
        <div>
          <label style="display:block;font-weight:bold;margin-bottom:4px;">Display Name</label>
          <input type="text" name="name" id="lib_name" placeholder="My Project"
                 style="width:100%;box-sizing:border-box;padding:8px;border:1px solid #ccc;border-radius:4px;">
        </div>
        <div>
          <label style="display:block;font-weight:bold;margin-bottom:4px;">Description</label>
          <input type="text" name="description" placeholder="Optional description"
                 style="width:100%;box-sizing:border-box;padding:8px;border:1px solid #ccc;border-radius:4px;">
        </div>
        <div>
          <label style="display:block;font-weight:bold;margin-bottom:4px;">Exclude Paths</label>
          <input type="text" name="exclude_paths" value="node_modules,.git" placeholder="node_modules,.git"
                 style="width:100%;box-sizing:border-box;padding:8px;border:1px solid #ccc;border-radius:4px;">
        </div>
      </div>

      <input type="hidden" name="repo_url" id="form_repo_url">
      <input type="hidden" name="branch" id="form_branch">

      <div id="selected-paths-preview"
           style="background:#e8f4fd;border-radius:4px;padding:8px;margin-bottom:10px;font-size:0.85rem;display:none;">
        <strong>Selected include paths:</strong> <span id="paths-list"></span>
      </div>

      <button type="submit" class="btn btn-primary">Save Git Source</button>
    </form>
  </div>
</div>

<!-- Configured sources list -->
{% if sources %}
<h3 style="margin-top:30px;">Configured Sources ({{ sources|length }})</h3>
<div class="source-cards">
  {% for src in sources %}
  <div class="source-card">
    <strong>{{ src.library_id | default('unknown') }}</strong>
    &nbsp;<span style="color:#666;font-size:0.85rem;">{{ src.repo_url | default('') }}</span><br>
    Branch: {{ src.branch | default('main') }}
    &nbsp;|&nbsp; Include: {{ src.include_paths | default(['*']) | join(', ') }}
    {% if src.exclude_paths %}
    &nbsp;|&nbsp; Exclude: {{ src.exclude_paths | join(', ') }}
    {% endif %}
  </div>
  {% endfor %}
</div>
{% else %}
<p style="margin-top:20px;color:#666;">No git sources configured yet.</p>
{% endif %}

<div style="margin-top:24px;">
  <form method="post" action="/sources/sync" style="display:inline;">
    <button type="submit" class="btn btn-primary">Sync All Repositories</button>
  </form>
</div>

{% endblock %}

{% block scripts %}
<script>
const checkedPaths = new Set();

async function browseRepo() {
  const url = document.getElementById('browse_url').value.trim();
  const branch = document.getElementById('browse_branch').value.trim() || 'main';
  if (!url) { alert('Enter a repository URL first.'); return; }

  const btn = document.getElementById('browse-btn');
  btn.disabled = true;
  btn.textContent = 'Cloning…';

  try {
    const fd = new FormData();
    fd.append('repo_url', url);
    fd.append('branch', branch);
    const resp = await fetch('/sources/browse', { method: 'POST', body: fd });
    const data = await resp.json();

    if (!data.success) {
      alert('Browse failed: ' + (data.detail || data.error || 'unknown error'));
      return;
    }

    checkedPaths.clear();
    renderTree(data.tree);
    document.getElementById('tree-section').style.display = 'block';
    document.getElementById('save-section').style.display = 'block';
    document.getElementById('form_repo_url').value = url;
    document.getElementById('form_branch').value = branch;

    // Auto-fill library ID from repo name
    const repoName = url.split('/').pop().replace(/\.git$/, '').toLowerCase().replace(/[^a-z0-9-]/g, '-');
    if (!document.getElementById('lib_id').value) {
      document.getElementById('lib_id').value = repoName;
      document.getElementById('lib_name').value = repoName;
    }
  } catch(e) {
    alert('Request failed: ' + e.message);
  } finally {
    btn.disabled = false;
    btn.textContent = 'Browse Repository';
  }
}

function renderTree(nodes) {
  const container = document.getElementById('tree-container');
  container.innerHTML = buildTreeHTML(nodes, 0);
}

function buildTreeHTML(nodes, depth) {
  if (!nodes || nodes.length === 0) return '';
  let html = '<ul style="list-style:none;padding-left:' + (depth === 0 ? 0 : 18) + 'px;margin:0;">';
  for (const node of nodes) {
    if (node.type === 'dir') {
      const hasChildren = node.children && node.children.length > 0;
      html += `<li style="margin:2px 0;">
        <span class="tree-toggle" onclick="toggleDir(this)" style="cursor:pointer;user-select:none;">&#9656;</span>
        <label style="cursor:pointer;">
          <input type="checkbox" class="dir-check" data-path="${node.path}"
                 onchange="onDirCheck(this)"> &#128193; ${node.path.split('/').pop()}/
        </label>
        <div class="tree-children" style="display:none;">
          ${hasChildren ? buildTreeHTML(node.children, depth + 1) : ''}
        </div>
      </li>`;
    } else {
      html += `<li style="margin:2px 0;color:#555;">
        <label style="cursor:pointer;padding-left:20px;">
          <input type="checkbox" class="file-check" data-path="${node.path}"
                 onchange="onFileCheck(this)"> &#128196; ${node.path.split('/').pop()}
        </label>
      </li>`;
    }
  }
  html += '</ul>';
  return html;
}

function toggleDir(arrow) {
  const li = arrow.closest('li');
  const children = li.querySelector('.tree-children');
  if (children.style.display === 'none') {
    children.style.display = 'block';
    arrow.innerHTML = '&#9662;';
  } else {
    children.style.display = 'none';
    arrow.innerHTML = '&#9656;';
  }
}

function onDirCheck(cb) {
  if (cb.checked) {
    checkedPaths.add(cb.dataset.path);
    // Uncheck any parent dirs that are already checked (this dir is more specific)
    // and uncheck descendant checkboxes to avoid redundancy
    const li = cb.closest('li');
    li.querySelectorAll('.dir-check,.file-check').forEach(c => {
      if (c !== cb) { c.checked = false; checkedPaths.delete(c.dataset.path); }
    });
  } else {
    checkedPaths.delete(cb.dataset.path);
  }
  updatePreview();
}

function onFileCheck(cb) {
  if (cb.checked) checkedPaths.add(cb.dataset.path);
  else checkedPaths.delete(cb.dataset.path);
  updatePreview();
}

function selectAll() {
  checkedPaths.clear();
  document.querySelectorAll('.dir-check').forEach(cb => {
    // Only select top-level dirs
    if (!cb.dataset.path.includes('/')) {
      cb.checked = true;
      checkedPaths.add(cb.dataset.path);
      cb.closest('li').querySelectorAll('.dir-check,.file-check').forEach(c => {
        if (c !== cb) { c.checked = false; }
      });
    }
  });
  updatePreview();
}

function clearAll() {
  checkedPaths.clear();
  document.querySelectorAll('.dir-check,.file-check').forEach(c => c.checked = false);
  updatePreview();
}

function updatePreview() {
  const paths = [...checkedPaths].sort();
  document.getElementById('include_paths').value = paths.join('\n');
  const preview = document.getElementById('selected-paths-preview');
  const list = document.getElementById('paths-list');
  if (paths.length > 0) {
    preview.style.display = 'block';
    list.textContent = paths.join(', ');
  } else {
    preview.style.display = 'none';
    list.textContent = '';
  }
}

document.getElementById('save-form').addEventListener('submit', function(e) {
  if (checkedPaths.size === 0) {
    if (!confirm('No paths selected — this will ingest the entire repository. Continue?')) {
      e.preventDefault();
    }
  }
});
</script>
{% endblock %}