{% extends "base.html" %}
{% block title %}Bid Tracker — Bid Checker{% endblock %}
{% block content %}

<div class="page-header">
  <h1>📌 Bid Tracker</h1>
  <button class="btn btn-primary" onclick="openModal('modal-add-bid')">＋ Add Bid</button>
</div>

<!-- ── Toolbar ─────────────────────────────────────────────── -->
<div class="bt-toolbar">
  <div class="search-wrap" style="max-width:260px">
    <span class="search-icon">🔍</span>
    <input type="text" id="bid-search" placeholder="Search title, source, sol #…" autocomplete="off">
  </div>

  <div class="bt-filters">
    <button class="bt-filter-btn active" data-status="">All</button>
    {% for s in bid_statuses %}
    <button class="bt-filter-btn" data-status="{{ s }}">{{ status_labels[s] }}</button>
    {% endfor %}
  </div>

  <button class="btn btn-secondary btn-sm" onclick="loadBids()">↻ Refresh</button>
  <button class="btn btn-secondary btn-sm" onclick="exportCsv()" title="Download current view as CSV">⬇ CSV</button>
  {% if session['user']['role'] == 'admin' %}
  <form method="post" action="{{ url_for('bid_tracker.send_reminders') }}" style="display:inline">
    <button class="btn btn-secondary btn-sm" type="submit" title="Email a digest of bids due within 7 days to admins">📧 Remind</button>
  </form>
  {% endif %}
</div>

<!-- ── Split pane ─────────────────────────────────────────── -->
<div class="bt-layout">

  <!-- Left — bid list -->
  <div class="bt-left">
    <div id="bid-list" class="bt-list">
      <div class="bt-loading">Loading…</div>
    </div>
  </div>

  <!-- Right — detail panel -->
  <div class="bt-right" id="bt-detail">
    <div class="bt-empty-state">
      <div class="empty-icon">📌</div>
      <p>Select a bid to view its details and updates.</p>
    </div>
  </div>

</div>

<!-- ══════════════════════════════════════════════════════════
     ADD BID MODAL
══════════════════════════════════════════════════════════ -->
<div class="modal-overlay" id="modal-add-bid">
  <div class="modal" style="max-width:600px">
    <div class="modal-header">
      <span class="modal-title">Add Opportunity</span>
      <button class="modal-close" onclick="closeModal('modal-add-bid')">✕</button>
    </div>
    <form method="post" action="{{ url_for('bid_tracker.create') }}">
      <div class="modal-body">
        {% include "_bid_form_fields.html" ignore missing %}
        <div class="form-group">
          <label>Title *</label>
          <input type="text" name="title" required>
        </div>
        <div class="form-group">
          <label>URL *</label>
          <input type="url" name="url" placeholder="https://" required>
        </div>
        <div class="form-row">
          <div class="form-group">
            <label>Source</label>
            <input type="text" name="source" placeholder="e.g. SAM.gov">
          </div>
          <div class="form-group">
            <label>Solicitation #</label>
            <input type="text" name="solicitation_number">
          </div>
        </div>
        <div class="form-row">
          <div class="form-group">
            <label>Status</label>
            <select name="status">
              {% for s in bid_statuses %}
              <option value="{{ s }}" {% if s == 'open' %}selected{% endif %}>{{ status_labels[s] }}</option>
              {% endfor %}
            </select>
          </div>
          <div class="form-group">
            <label>Due Date</label>
            <input type="date" name="due_date" id="add-bid-due-date">
          </div>
        </div>
        <div class="form-group">
          <label>Notes</label>
          <textarea name="notes" rows="3" placeholder="Any relevant notes…"></textarea>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" onclick="closeModal('modal-add-bid')">Cancel</button>
        <button type="submit" class="btn btn-primary">Add Bid</button>
      </div>
    </form>
  </div>
</div>

<!-- ══════════════════════════════════════════════════════════
     EDIT BID MODAL
══════════════════════════════════════════════════════════ -->
<div class="modal-overlay" id="modal-edit-bid">
  <div class="modal" style="max-width:600px">
    <div class="modal-header">
      <span class="modal-title">Edit Opportunity</span>
      <button class="modal-close" onclick="closeModal('modal-edit-bid')">✕</button>
    </div>
    <form method="post" id="edit-bid-form">
      <div class="modal-body">
        <div class="form-group">
          <label>Title *</label>
          <input type="text" name="title" id="eb-title" required>
        </div>
        <div class="form-group">
          <label>URL *</label>
          <input type="url" name="url" id="eb-url" placeholder="https://" required>
        </div>
        <div class="form-row">
          <div class="form-group">
            <label>Source</label>
            <input type="text" name="source" id="eb-source">
          </div>
          <div class="form-group">
            <label>Solicitation #</label>
            <input type="text" name="solicitation_number" id="eb-sol">
          </div>
        </div>
        <div class="form-row">
          <div class="form-group">
            <label>Status</label>
            <select name="status" id="eb-status">
              {% for s in bid_statuses %}
              <option value="{{ s }}">{{ status_labels[s] }}</option>
              {% endfor %}
            </select>
          </div>
          <div class="form-group">
            <label>Due Date</label>
            <input type="date" name="due_date" id="eb-due">
          </div>
        </div>
        <div class="form-group">
          <label>Notes</label>
          <textarea name="notes" id="eb-notes" rows="3"></textarea>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" onclick="closeModal('modal-edit-bid')">Cancel</button>
        <button type="submit" class="btn btn-primary">Save Changes</button>
      </div>
    </form>
  </div>
</div>

<script>
/* ══════════════════════════════════════════════════════════
   State
══════════════════════════════════════════════════════════ */
var _activeBidId   = null;
var _activeStatus  = '';
var _allBids       = [];   // cached from last load
var _bidOffset     = 0;
var _hasMore       = false;
var _PAGE_SIZE     = 50;

function exportCsv() {
  var url = '/bids/export.csv';
  if (_activeStatus) url += '?status=' + encodeURIComponent(_activeStatus);
  window.location.href = url;
}
var _currentUserId = {{ session['user']['id'] }};
var _isAdmin       = {{ 'true' if session['user']['role'] == 'admin' else 'false' }};

/* ══════════════════════════════════════════════════════════
   Status config
══════════════════════════════════════════════════════════ */
var STATUS_LABELS = {
  'open':       '🟢 Open',
  'monitoring': '🔵 Monitoring',
  'awarded':    '🏆 Awarded',
  'no_bid':     '⛔ No Bid',
  'cancelled':  '🚫 Cancelled',
};
var STATUS_BADGE = {
  'open':       'badge-success',
  'monitoring': 'badge-info',
  'awarded':    'badge-warning',
  'no_bid':     'badge-danger',
  'cancelled':  'badge-muted',
};

/* ══════════════════════════════════════════════════════════
   Load / render bid list
══════════════════════════════════════════════════════════ */
function loadBids() {
  _bidOffset = 0;
  _allBids   = [];
  _hasMore   = false;
  _fetchBids(false);
}

function _fetchBids(append) {
  fetch('/bids/list/json?status=' + encodeURIComponent(_activeStatus) + '&offset=' + _bidOffset)
    .then(function(r) { return r.json(); })
    .then(function(bids) {
      if (!Array.isArray(bids)) return;
      _allBids    = append ? _allBids.concat(bids) : bids;
      _bidOffset += bids.length;
      _hasMore    = bids.length >= _PAGE_SIZE;
      renderBidList(_allBids);
      if (_activeBidId) {
        var row = document.querySelector('.bt-row[data-id="' + _activeBidId + '"]');
        if (row) row.classList.add('active');
      }
    })
    .catch(function() {
      document.getElementById('bid-list').innerHTML =
        '<p class="text-muted text-center" style="padding:1rem">Failed to load bids.</p>';
    });
}

function renderBidList(bids) {
  var q = document.getElementById('bid-search').value.trim().toLowerCase();
  var filtered = q ? bids.filter(function(b) {
    return (b.title || '').toLowerCase().includes(q)
        || (b.source || '').toLowerCase().includes(q)
        || (b.solicitation_number || '').toLowerCase().includes(q);
  }) : bids;

  var list = document.getElementById('bid-list');
  if (!filtered.length) {
    list.innerHTML = '<p class="text-muted text-center" style="padding:1.5rem">No bids found.</p>';
    return;
  }

  var today = new Date(); today.setHours(0, 0, 0, 0);

  list.innerHTML = filtered.map(function(b) {
    var due    = b.due_date ? b.due_date.slice(0, 10) : '—';
    var badge  = STATUS_BADGE[b.status] || 'badge-muted';
    var label  = STATUS_LABELS[b.status] || b.status;
    var active = b.id === _activeBidId ? ' active' : '';
    var upds   = b.update_count || 0;

    var urgencyBadge = '';
    if (b.due_date) {
      var dueD = new Date(b.due_date.slice(0, 10)); dueD.setHours(0, 0, 0, 0);
      var diff = Math.round((dueD - today) / 86400000);
      if (diff < 0) {
        var od = Math.abs(diff);
        urgencyBadge = '<span class="badge badge-danger badge-sm">Overdue by ' + od + (od === 1 ? ' day' : ' days') + '</span>';
      } else if (diff === 0) {
        urgencyBadge = '<span class="badge badge-danger badge-sm">Due today</span>';
      } else if (diff <= 7) {
        urgencyBadge = '<span class="badge badge-warning badge-sm">Due in ' + diff + (diff === 1 ? ' day' : ' days') + '</span>';
      }
    }

    return '<div class="bt-row' + active + '" data-id="' + b.id + '" onclick="selectBid(' + b.id + ')">'
      + '<div class="bt-row-title">' + esc(b.title) + '</div>'
      + '<div class="bt-row-meta">'
      + '<span class="badge ' + badge + ' badge-sm">' + label + '</span>'
      + '<span class="text-muted text-xs">Due: ' + due + '</span>'
      + urgencyBadge
      + (upds ? '<span class="text-muted text-xs">💬 ' + upds + '</span>' : '')
      + '</div>'
      + '</div>';
  }).join('');

  if (_hasMore && !q) {
    list.innerHTML += '<div class="bt-load-more">'
      + '<button class="btn btn-secondary btn-sm" onclick="_fetchBids(true)">Load more…</button>'
      + '</div>';
  }
}

/* ══════════════════════════════════════════════════════════
   Select + load detail
══════════════════════════════════════════════════════════ */
function selectBid(id) {
  _activeBidId = id;
  document.querySelectorAll('.bt-row').forEach(function(r) {
    r.classList.toggle('active', r.dataset.id == id);
  });
  loadDetail(id);
}

function loadDetail(id) {
  var panel = document.getElementById('bt-detail');
  panel.innerHTML = '<div class="bt-detail-loading">Loading…</div>';

  fetch('/bids/' + id + '/json')
    .then(function(r) { return r.json(); })
    .then(function(data) {
      if (data.error) { panel.innerHTML = '<p class="text-muted" style="padding:1rem">' + esc(data.error) + '</p>'; return; }
      renderDetail(data);
    })
    .catch(function() {
      panel.innerHTML = '<p class="text-muted" style="padding:1rem">Failed to load details.</p>';
    });
}

function renderDetail(data) {
  var b       = data.bid;
  var updates = data.updates;
  var canEdit = data.can_edit;
  var userId  = data.user_id;

  var due    = b.due_date ? b.due_date.slice(0, 10) : 'Not specified';
  var badge  = STATUS_BADGE[b.status] || 'badge-muted';
  var label  = STATUS_LABELS[b.status] || b.status;
  var sol    = b.solicitation_number || '—';
  var src    = b.source || '—';
  var addedBy = b.added_by_username || '—';
  var addedAt = (b.created_at || '').slice(0, 16);
  var notes  = b.notes || '';

  var updatesHtml = updates.length ? updates.map(function(u) {
    var poster  = u.posted_by_full_name || u.posted_by_username || 'Unknown';
    var dt      = (u.created_at || '').slice(0, 16);
    var canDel  = data.is_admin || u.user_id === userId;
    var delBtn  = canDel
      ? '<button class="bt-upd-del" onclick="deleteUpdate(' + u.id + ',' + b.id + ')" title="Delete update">✕</button>'
      : '';
    return '<div class="bt-update-card">'
      + '<div class="bt-upd-hdr">'
      + '<span class="bt-upd-poster">👤 ' + esc(poster) + '</span>'
      + '<span class="bt-upd-dt text-muted text-xs">' + dt + '</span>'
      + delBtn
      + '</div>'
      + '<div class="bt-upd-body">' + esc(u.content) + '</div>'
      + '</div>';
  }).join('') : '<p class="text-muted text-sm" style="padding:.5rem 0">No updates yet. Be the first to post one.</p>';

  var editBtn = canEdit
    ? '<button class="btn btn-secondary btn-sm" onclick="openEditModal(' + b.id + ')">✎ Edit</button>'
    + '<form method="post" action="/bids/' + b.id + '/delete" style="display:inline"'
    + ' onsubmit="return confirm(\'Delete \\\'' + esc(b.title) + '\\\'?\')">'
    + '<input type="hidden" name="csrf_token" value="' + getCsrfToken() + '">'
    + '<button class="btn btn-danger btn-sm" type="submit">✕ Delete</button></form>'
    : '';

  document.getElementById('bt-detail').innerHTML = ''
    + '<div class="bt-detail-header">'
    +   '<div class="bt-detail-title-row">'
    +     '<h2 class="bt-detail-title">' + esc(b.title) + '</h2>'
    +     '<span class="badge ' + badge + '">' + label + '</span>'
    +   '</div>'
    +   '<div class="bt-detail-actions">'
    +     editBtn
    +     '<a href="' + esc(b.url) + '" target="_blank" rel="noopener" class="btn btn-secondary btn-sm">↗ Open URL</a>'
    +   '</div>'
    + '</div>'

    + '<div class="bt-meta-grid">'
    +   metaItem('Due Date', due)
    +   metaItem('Sol #', sol)
    +   metaItem('Source', src)
    +   metaItem('Added by', addedBy + (addedAt ? ' · ' + addedAt : ''))
    + '</div>'

    + (notes ? '<div class="bt-notes"><strong>Notes:</strong> ' + esc(notes) + '</div>' : '')

    + '<div class="bt-updates-section">'
    +   '<div class="bt-updates-header">📝 Updates</div>'

    +   '<div class="bt-compose">'
    +     '<textarea id="upd-text-' + b.id + '" class="bt-compose-txt" rows="2"'
    +     ' placeholder="Write an update, e.g. \'Amendment 1 issued — due date extended to…\'"></textarea>'
    +     '<button class="btn btn-primary btn-sm" onclick="postUpdate(' + b.id + ')">📤 Post Update</button>'
    +   '</div>'

    +   '<div class="bt-updates-list" id="upd-list-' + b.id + '">' + updatesHtml + '</div>'
    + '</div>';
}

function metaItem(label, value) {
  return '<div class="bt-meta-item"><span class="bt-meta-key">' + label + '</span>'
       + '<span class="bt-meta-val">' + esc(value) + '</span></div>';
}

/* ══════════════════════════════════════════════════════════
   Post update (AJAX — no page reload)
══════════════════════════════════════════════════════════ */
function postUpdate(bidId) {
  var ta = document.getElementById('upd-text-' + bidId);
  var content = ta ? ta.value.trim() : '';
  if (!content) { alert('Please write an update before posting.'); return; }

  var fd = new FormData();
  fd.append('content', content);

  fetch('/bids/' + bidId + '/updates/json', { method: 'POST', body: fd, credentials: 'same-origin', headers: {'X-CSRFToken': getCsrfToken()} })
    .then(function(r) { return r.json(); })
    .then(function(d) {
      if (d.error) { alert(d.error); return; }
      ta.value = '';
      // Reload detail to show new update
      loadDetail(bidId);
      // Refresh list to update count
      loadBids();
    })
    .catch(function(e) { alert('Failed to post update: ' + e); });
}

/* ══════════════════════════════════════════════════════════
   Delete update (AJAX)
══════════════════════════════════════════════════════════ */
function deleteUpdate(updateId, bidId) {
  if (!confirm('Delete this update?')) return;
  var fd = new FormData();
  fetch('/bids/updates/' + updateId + '/delete/json', { method: 'POST', body: fd, credentials: 'same-origin', headers: {'X-CSRFToken': getCsrfToken()} })
    .then(function(r) { return r.json(); })
    .then(function(d) {
      if (d.error) { alert(d.error); return; }
      loadDetail(bidId);
      loadBids();
    })
    .catch(function(e) { alert('Failed to delete update: ' + e); });
}

/* ══════════════════════════════════════════════════════════
   Edit modal
══════════════════════════════════════════════════════════ */
function openEditModal(bidId) {
  fetch('/bids/' + bidId + '/json')
    .then(function(r) { return r.json(); })
    .then(function(data) {
      var b = data.bid;
      document.getElementById('eb-title').value  = b.title || '';
      document.getElementById('eb-url').value    = b.url || '';
      document.getElementById('eb-source').value = b.source || '';
      document.getElementById('eb-sol').value    = b.solicitation_number || '';
      document.getElementById('eb-status').value = b.status || 'open';
      document.getElementById('eb-due').value    = b.due_date ? b.due_date.slice(0, 10) : '';
      document.getElementById('eb-notes').value  = b.notes || '';
      document.getElementById('edit-bid-form').action = '/bids/' + bidId + '/edit';
      openModal('modal-edit-bid');
    });
}

/* ══════════════════════════════════════════════════════════
   Filter buttons
══════════════════════════════════════════════════════════ */
document.querySelectorAll('.bt-filter-btn').forEach(function(btn) {
  btn.addEventListener('click', function() {
    document.querySelectorAll('.bt-filter-btn').forEach(function(b) { b.classList.remove('active'); });
    btn.classList.add('active');
    _activeStatus = btn.dataset.status;
    loadBids();
  });
});

/* ── Search ─────────────────────────────────────────────── */
document.getElementById('bid-search').addEventListener('input', function() {
  renderBidList(_allBids);
  // Restore active class after re-render
  if (_activeBidId) {
    var row = document.querySelector('.bt-row[data-id="' + _activeBidId + '"]');
    if (row) row.classList.add('active');
  }
});

/* ── Init ───────────────────────────────────────────────── */
loadBids();

/* Set today as the minimum selectable due date for new bids */
document.getElementById('add-bid-due-date').min = new Date().toISOString().slice(0, 10);
</script>

<style>
/* ── Toolbar ───────────────────────────────────────────── */
.bt-toolbar{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap;margin-bottom:1rem}
.bt-filters{display:flex;gap:.35rem;flex-wrap:wrap}
.bt-filter-btn{
  padding:.3rem .75rem;border-radius:999px;font-size:.75rem;font-weight:600;
  border:1px solid var(--border-strong);background:var(--bg-white);
  color:var(--text-muted);cursor:pointer;transition:all var(--t);
  font-family:'DM Sans',sans-serif;
}
.bt-filter-btn:hover{background:var(--bg-hover);color:var(--text)}
.bt-filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ── Layout ────────────────────────────────────────────── */
.bt-layout{display:grid;grid-template-columns:340px 1fr;gap:1rem;
           align-items:start;min-height:calc(100vh - 200px)}
.bt-left{background:var(--bg-white);border:1px solid var(--border);
         border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.bt-right{background:var(--bg-white);border:1px solid var(--border);
          border-radius:var(--r-lg);box-shadow:var(--shadow-sm);
          min-height:400px;overflow:hidden}

/* ── Bid list rows ─────────────────────────────────────── */
.bt-list{display:flex;flex-direction:column}
.bt-loading{padding:1.5rem;text-align:center;color:var(--text-muted);font-size:.875rem}
.bt-row{
  padding:.8rem 1rem;border-bottom:1px solid var(--border);
  cursor:pointer;transition:background var(--t);
}
.bt-row:last-child{border-bottom:none}
.bt-row:hover{background:var(--bg-subtle)}
.bt-row.active{background:var(--accent-light);border-left:3px solid var(--accent)}
.bt-row-title{font-size:.875rem;font-weight:600;color:var(--text);
              margin-bottom:.3rem;
              white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bt-row-meta{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}

/* ── Detail panel ──────────────────────────────────────── */
.bt-empty-state{display:flex;flex-direction:column;align-items:center;
                justify-content:center;padding:3rem 1rem;color:var(--text-muted);
                text-align:center}
.bt-detail-loading{padding:2rem;text-align:center;color:var(--text-muted)}
.bt-detail-header{
  padding:1.1rem 1.25rem .9rem;border-bottom:1px solid var(--border);
  background:var(--bg-subtle);
}
.bt-detail-title-row{display:flex;align-items:flex-start;gap:.6rem;margin-bottom:.6rem}
.bt-detail-title{font-size:1.1rem;font-weight:700;color:var(--text);flex:1;line-height:1.3}
.bt-detail-actions{display:flex;align-items:center;gap:.4rem;flex-wrap:wrap}

/* ── Metadata grid ─────────────────────────────────────── */
.bt-meta-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  padding:.75rem 1.25rem;border-bottom:1px solid var(--border);
}
.bt-meta-item{padding:.35rem 0;display:flex;flex-direction:column;gap:2px}
.bt-meta-key{font-size:.68rem;font-weight:700;letter-spacing:.07em;
             text-transform:uppercase;color:var(--text-muted)}
.bt-meta-val{font-size:.85rem;color:var(--text-secondary)}
.bt-notes{
  padding:.7rem 1.25rem;font-size:.85rem;color:var(--text-secondary);
  border-bottom:1px solid var(--border);line-height:1.6;
}

/* ── Updates section ───────────────────────────────────── */
.bt-updates-section{padding:0 1.25rem 1.25rem}
.bt-updates-header{font-size:.85rem;font-weight:700;color:var(--text);
                   padding:.9rem 0 .6rem;border-bottom:1px solid var(--border);
                   margin-bottom:.75rem}
.bt-compose{display:flex;flex-direction:column;gap:.5rem;margin-bottom:.9rem}
.bt-compose-txt{
  width:100%;padding:.55rem .75rem;border:1px solid var(--border-strong);
  border-radius:var(--r-sm);font-family:'DM Sans',sans-serif;font-size:.875rem;
  color:var(--text);background:var(--bg-white);resize:vertical;outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.bt-compose-txt:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.bt-compose .btn{align-self:flex-end}

/* ── Update cards ──────────────────────────────────────── */
.bt-updates-list{display:flex;flex-direction:column;gap:.6rem;
                 max-height:380px;overflow-y:auto;padding-right:2px}
.bt-update-card{
  background:var(--bg-subtle);border:1px solid var(--border);
  border-radius:var(--r);padding:.7rem .9rem;
}
.bt-upd-hdr{display:flex;align-items:center;gap:.6rem;margin-bottom:.4rem}
.bt-upd-poster{font-size:.8rem;font-weight:600;color:var(--text);flex:1}
.bt-upd-dt{flex-shrink:0}
.bt-upd-del{
  background:none;border:none;color:var(--text-muted);cursor:pointer;
  font-size:.8rem;padding:.1rem .3rem;border-radius:var(--r-sm);
  transition:all var(--t);
}
.bt-upd-del:hover{background:var(--danger-bg);color:var(--danger)}
.bt-upd-body{font-size:.875rem;color:var(--text-secondary);line-height:1.6;
             white-space:pre-wrap}

/* ── Load more ─────────────────────────────────────────────── */
.bt-load-more{padding:.75rem 1rem;text-align:center;border-top:1px solid var(--border)}

@media(max-width:900px){
  .bt-layout{grid-template-columns:1fr;grid-template-rows:auto auto}
  .bt-right{min-height:300px}
}
</style>
{% endblock %}