// ═══════════════════════════════════════════════════════════════════
// ISSUES PAGE — Kanban + List view for issue management
// ═══════════════════════════════════════════════════════════════════

let _issueView = 'kanban'; // 'kanban' | 'list'

function renderIssuesPage() {
  const filtered = getFilteredIssues();
  if (_issueView === 'kanban') renderKanbanView(filtered);
  else renderListView(filtered);
}

function applyIssueFilters() {
  renderIssuesPage();
}

function switchIssueView(view) {
  _issueView = view;
  document.getElementById('kanban-view-btn').classList.toggle('active', view === 'kanban');
  document.getElementById('list-view-btn').classList.toggle('active', view === 'list');
  renderIssuesPage();
}

function getFilteredIssues() {
  const search  = (document.getElementById('issues-search')?.value || '').toLowerCase().trim();
  const program = document.getElementById('issues-filter-program')?.value || 'all';
  const severity= document.getElementById('issues-filter-severity')?.value || 'all';

  return APP_STATE.issues.filter(i => {
    const matchSearch = !search || i.judul.toLowerCase().includes(search) || i.daerah.toLowerCase().includes(search) || i.provinsi.toLowerCase().includes(search) || i.id.toLowerCase().includes(search);
    const matchProg   = program === 'all' || i.programId === program;
    const matchSev    = severity === 'all' || i.severity === severity;
    return matchSearch && matchProg && matchSev;
  });
}

// ─── KANBAN VIEW ─────────────────────────────────────────────────
function renderKanbanView(issues) {
  const cols = [
    { key: 'open',        label: 'Terbuka',   icon: '🔴', color: 'var(--red)' },
    { key: 'in_progress', label: 'Diproses',  icon: '🔵', color: 'var(--blue)' },
    { key: 'resolved',    label: 'Selesai',   icon: '✅', color: 'var(--green)' }
  ];
  document.getElementById('issues-body').innerHTML = `
    <div class="kanban-view">
      ${cols.map(col => {
        const colIssues = issues.filter(i => i.status === col.key);
        return `
          <div class="kanban-col">
            <div class="kanban-col-header">
              <div class="kanban-col-title">
                <span>${col.icon}</span>
                <span>${col.label}</span>
              </div>
              <span class="col-count">${colIssues.length}</span>
            </div>
            <div class="kanban-cards">
              ${colIssues.length === 0
                ? `<div class="empty-state" style="padding:32px 16px;"><div class="empty-icon" style="font-size:24px;opacity:0.3;">📭</div><div class="empty-desc" style="font-size:11px;">Tidak ada issue</div></div>`
                : colIssues.map(i => renderIssueCard(i)).join('')
              }
            </div>
          </div>
        `;
      }).join('')}
    </div>
  `;
}

function renderIssueCard(issue) {
  const prog = getProgramById(issue.programId);
  const survCount = issue.surveyIds.length;
  const escCount  = issue.escalationIds.length;
  return `
    <div class="issue-card ${issue.severity}-card fade-in" onclick="openIssueDetail('${issue.id}')">
      <div class="ic-header">
        <span class="ic-id">${issue.id}</span>
        ${getSevBadge(issue.severity)}
      </div>
      <div class="flex gap-2 items-center mb-2">
        ${getProgramBadge(issue.programId)}
        <span style="font-size:10px;color:var(--text-3);">📍 ${issue.daerah}</span>
      </div>
      <div class="ic-title">${issue.judul}</div>
      <div class="ic-desc">${issue.deskripsi}</div>
      <div class="ic-footer">
        <div style="display:flex;gap:8px;align-items:center;">
          ${survCount > 0 ? `<span style="font-size:10px;color:var(--purple);">📋 ${survCount} survey</span>` : ''}
          ${escCount > 0 ? `<span style="font-size:10px;color:var(--orange);">🔺 ${escCount} eskalasi</span>` : ''}
        </div>
        <div class="ic-meta">${formatDate(issue.createdAt)}</div>
      </div>
      <div style="margin-top:8px;padding-top:8px;border-top:1px solid var(--border);font-size:10px;color:var(--text-3);" class="truncate">
        👤 ${issue.assignee}
      </div>
    </div>
  `;
}

// ─── LIST / TABLE VIEW ────────────────────────────────────────────
function renderListView(issues) {
  document.getElementById('issues-body').innerHTML = `
    <div class="list-view">
      ${issues.length === 0
        ? `<div class="empty-state"><div class="empty-icon">🔍</div><div class="empty-title">Tidak ada issue</div><div class="empty-desc">Tidak ada issue yang cocok dengan filter yang dipilih</div></div>`
        : `<div class="table-wrap">
            <table>
              <thead>
                <tr>
                  <th>ID</th>
                  <th>Judul Issue</th>
                  <th>Program</th>
                  <th>Daerah</th>
                  <th>Keparahan</th>
                  <th>Status</th>
                  <th>Ditugaskan ke</th>
                  <th>Tanggal</th>
                  <th></th>
                </tr>
              </thead>
              <tbody>
                ${issues.map(i => `
                  <tr style="cursor:pointer;" onclick="openIssueDetail('${i.id}')">
                    <td><span style="font-family:monospace;font-size:11px;color:var(--text-3);">${i.id}</span></td>
                    <td style="max-width:240px;">
                      <div style="font-size:12px;font-weight:500;color:var(--text-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:220px;" title="${i.judul}">${i.judul}</div>
                    </td>
                    <td>${getProgramBadge(i.programId)}</td>
                    <td>
                      <div style="font-size:12px;font-weight:500;">${i.daerah}</div>
                      <div class="td-muted">${i.provinsi}</div>
                    </td>
                    <td>${getSevBadge(i.severity)}</td>
                    <td>${getStatBadge(i.status)}</td>
                    <td class="td-muted truncate" style="max-width:140px;">${i.assignee}</td>
                    <td class="td-muted">${formatDate(i.createdAt)}</td>
                    <td>
                      <div style="display:flex;gap:4px;">
                        ${i.surveyIds.length > 0 ? `<span title="${i.surveyIds.length} survey" style="font-size:12px;">📋</span>` : ''}
                        ${i.escalationIds.length > 0 ? `<span title="${i.escalationIds.length} eskalasi" style="font-size:12px;">🔺</span>` : ''}
                      </div>
                    </td>
                  </tr>
                `).join('')}
              </tbody>
            </table>
          </div>`
      }
    </div>
  `;
}