{% extends "base.html" %}
{% block title %}File Details{% endblock %}

{% block head_extra %}
  <style>
    .detail-container {
      max-width: 1200px;
      margin: 0 auto;
    }
    .back-button {
      display: inline-flex;
      align-items: center;
      color: #3182ce;
      text-decoration: none;
      margin-bottom: 1.5rem;
      font-weight: 600;
    }
    .back-button:hover {
      color: #2c5aa0;
    }
    .back-button i {
      margin-right: 0.5rem;
    }
    
    .detail-card {
      background-color: white;
      border-radius: 0.5rem;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
      padding: 2rem;
      margin-bottom: 1.5rem;
    }
    .detail-card h3 {
      font-size: 1.5rem;
      font-weight: bold;
      margin-bottom: 1rem;
      color: #2d3748;
    }
    
    .detail-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1.5rem;
    }
    .detail-item {
      display: flex;
      flex-direction: column;
    }
    .detail-label {
      font-weight: 600;
      color: #4a5568;
      margin-bottom: 0.25rem;
      font-size: 0.875rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .detail-value {
      color: #2d3748;
      font-size: 1rem;
      word-break: break-word;
    }
    
    /* Status badges */
    .status-badge {
      display: inline-block;
      padding: 0.5rem 1rem;
      border-radius: 9999px;
      font-size: 1rem;
      font-weight: 600;
      text-align: center;
    }
    .status-pending {
      background-color: #FEF3C7;
      color: #92400E;
    }
    .status-processing {
      background-color: #DBEAFE;
      color: #1E3A8A;
    }
    .status-completed {
      background-color: #D1FAE5;
      color: #065F46;
    }
    .status-failed {
      background-color: #FEE2E2;
      color: #991B1B;
    }
    
    /* Step summary section */
    .step-summary {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1rem;
      margin-bottom: 1.5rem;
    }
    .summary-card {
      background-color: #f7fafc;
      border-radius: 0.5rem;
      padding: 1rem;
      border-left: 4px solid #e2e8f0;
    }
    .summary-card.main-steps {
      border-left-color: #4299e1;
    }
    .summary-card.upload-steps {
      border-left-color: #48bb78;
    }
    .summary-title {
      font-weight: 600;
      color: #2d3748;
      margin-bottom: 0.5rem;
      font-size: 0.875rem;
      text-transform: uppercase;
    }
    .summary-counts {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }
    .summary-count {
      display: flex;
      align-items: center;
      gap: 0.25rem;
      font-size: 0.875rem;
    }
    .count-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 1.5rem;
      height: 1.5rem;
      border-radius: 50%;
      font-weight: 600;
      font-size: 0.75rem;
    }
    .count-badge.success {
      background-color: #48bb78;
      color: white;
    }
    .count-badge.failure {
      background-color: #f56565;
      color: white;
    }
    .count-badge.in-progress {
      background-color: #4299e1;
      color: white;
    }
    .count-badge.queued {
      background-color: #ecc94b;
      color: white;
    }
    
    /* Processing logs - collapsible */
    .timeline {
      position: relative;
      padding-left: 2rem;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 0.5rem;
      top: 0;
      bottom: 0;
      width: 2px;
      background-color: #e2e8f0;
    }
    .timeline-item {
      position: relative;
      padding-bottom: 2rem;
    }
    .timeline-item:last-child {
      padding-bottom: 0;
    }
    .timeline-marker {
      position: absolute;
      left: -1.5rem;
      width: 1rem;
      height: 1rem;
      border-radius: 50%;
      background-color: #e2e8f0;
      border: 2px solid white;
    }
    .timeline-marker.success {
      background-color: #48bb78;
    }
    .timeline-marker.failure {
      background-color: #f56565;
    }
    .timeline-marker.in_progress {
      background-color: #4299e1;
    }
    .timeline-marker.pending {
      background-color: #ecc94b;
    }
    .timeline-content {
      background-color: #f7fafc;
      border-radius: 0.5rem;
      padding: 1rem;
      border-left: 3px solid #e2e8f0;
    }
    .timeline-content.success {
      border-left-color: #48bb78;
      background-color: #f0fff4;
    }
    .timeline-content.failure {
      border-left-color: #f56565;
      background-color: #fff5f5;
    }
    .timeline-content.in_progress {
      border-left-color: #4299e1;
      background-color: #ebf8ff;
    }
    .timeline-content.pending {
      border-left-color: #ecc94b;
      background-color: #fffff0;
    }
    .timeline-title {
      font-weight: 600;
      color: #2d3748;
      margin-bottom: 0.5rem;
    }
    .timeline-message {
      color: #4a5568;
      margin-bottom: 0.5rem;
    }
    .timeline-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.875rem;
      color: #718096;
    }
    .timeline-task-id {
      font-family: monospace;
      font-size: 0.75rem;
      color: #a0aec0;
    }
    
    .logs-toggle {
      cursor: pointer;
      user-select: none;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      color: #3182ce;
      font-weight: 600;
      margin-bottom: 1rem;
    }
    .logs-toggle:hover {
      color: #2c5aa0;
    }
    .logs-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .logs-content.expanded {
      max-height: 5000px;
      transition: max-height 0.5s ease-in;
    }

    /* Verbose detail block */
    .timeline-detail-toggle {
      cursor: pointer;
      color: #3182ce;
      font-size: 0.75rem;
      font-weight: 600;
      margin-top: 0.25rem;
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
    }
    .timeline-detail-toggle:hover {
      color: #2c5aa0;
    }
    .timeline-detail {
      display: none;
      margin-top: 0.5rem;
      background-color: #1a202c;
      color: #e2e8f0;
      padding: 0.75rem;
      border-radius: 0.375rem;
      font-family: monospace;
      font-size: 0.75rem;
      white-space: pre-wrap;
      word-break: break-word;
      max-height: 400px;
      overflow-y: auto;
    }
    .timeline-detail.visible {
      display: block;
    }
    
    .no-logs {
      text-align: center;
      padding: 3rem;
      color: #718096;
    }
    .no-logs i {
      font-size: 3rem;
      margin-bottom: 1rem;
      opacity: 0.5;
    }
    
    .error-message {
      background-color: #FEE2E2;
      border: 1px solid #F87171;
      color: #B91C1C;
      padding: 1rem;
      border-radius: 0.25rem;
      margin-bottom: 1rem;
    }
    
    .file-status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.5rem 1rem;
      border-radius: 0.25rem;
      font-size: 0.875rem;
    }
    .file-status-indicator.exists {
      background-color: #D1FAE5;
      color: #065F46;
    }
    .file-status-indicator.missing {
      background-color: #FEE2E2;
      color: #991B1B;
    }
    
    /* Flow visualization with branches */
    .flow-stage {
      display: flex;
      align-items: flex-start;
      margin-bottom: 1.5rem;
    }
    .flow-indicator {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-right: 1rem;
      flex-shrink: 0;
    }
    .flow-indicator.success {
      background-color: #48bb78;
      color: white;
    }
    .flow-indicator.failure {
      background-color: #f56565;
      color: white;
    }
    .flow-indicator.in_progress {
      background-color: #4299e1;
      color: white;
    }
    .flow-indicator.pending, .flow-indicator.queued {
      background-color: #ecc94b;
      color: white;
    }
    .flow-indicator.not_run {
      background-color: #e2e8f0;
      color: #718096;
    }
    .flow-content {
      flex: 1;
      background-color: #f7fafc;
      padding: 1rem;
      border-radius: 0.5rem;
      border-left: 3px solid #e2e8f0;
    }
    .flow-content.success {
      border-left-color: #48bb78;
      background-color: #f0fff4;
    }
    .flow-content.failure {
      border-left-color: #f56565;
      background-color: #fff5f5;
    }
    .flow-content.in_progress {
      border-left-color: #4299e1;
      background-color: #ebf8ff;
    }
    .flow-content.pending, .flow-content.queued {
      border-left-color: #ecc94b;
      background-color: #fffff0;
    }
    .flow-title {
      font-weight: 600;
      color: #2d3748;
      margin-bottom: 0.25rem;
    }
    .flow-message {
      color: #4a5568;
      font-size: 0.875rem;
    }
    .flow-timestamp {
      color: #718096;
      font-size: 0.75rem;
      margin-top: 0.25rem;
    }
    .flow-connector {
      width: 2px;
      height: 20px;
      background-color: #e2e8f0;
      margin-left: 19px;
      margin-bottom: 0.5rem;
    }
    
    /* Branch visualization */
    .flow-branches {
      margin-left: 56px;
      margin-top: 1rem;
      padding-left: 1rem;
      border-left: 2px dashed #cbd5e0;
    }
    .branch-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 1rem;
      position: relative;
    }
    .branch-item::before {
      content: '';
      position: absolute;
      left: -1rem;
      top: 20px;
      width: 1rem;
      height: 2px;
      background-color: #cbd5e0;
    }
    .branch-indicator {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-right: 0.75rem;
      flex-shrink: 0;
      font-size: 0.875rem;
    }
    .branch-indicator.success {
      background-color: #48bb78;
      color: white;
    }
    .branch-indicator.failure {
      background-color: #f56565;
      color: white;
    }
    .branch-indicator.in_progress {
      background-color: #4299e1;
      color: white;
    }
    .branch-indicator.pending, .branch-indicator.queued {
      background-color: #ecc94b;
      color: white;
    }
    .branch-content {
      flex: 1;
      background-color: white;
      padding: 0.75rem;
      border-radius: 0.5rem;
      border: 1px solid #e2e8f0;
    }
    .branch-content.failure {
      border-color: #f56565;
      background-color: #fffafa;
    }
    .branch-title {
      font-weight: 600;
      color: #2d3748;
      font-size: 0.875rem;
      margin-bottom: 0.25rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .branch-message {
      color: #4a5568;
      font-size: 0.75rem;
    }
    .retry-btn {
      background-color: #f56565;
      color: white;
      border: none;
      padding: 0.25rem 0.75rem;
      border-radius: 0.25rem;
      font-size: 0.75rem;
      cursor: pointer;
      font-weight: 600;
    }
    .retry-btn:hover {
      background-color: #e53e3e;
    }
    .retry-btn:disabled {
      background-color: #cbd5e0;
      cursor: not-allowed;
    }
  </style>
  {% if file %}
  <script>
    // JavaScript for handling retry functionality
    async function reprocessFile() {
      const fileId = {{ file.id | tojson }};
      const button = document.getElementById('reprocess-btn');
      const statusDiv = document.getElementById('reprocess-status');
      
      // Disable button and show loading
      button.disabled = true;
      button.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Processing...';
      statusDiv.innerHTML = '';
      
      try {
        const response = await fetch(`/api/files/${fileId}/reprocess`, {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json'
          }
        });
        
        const data = await response.json();
        
        if (response.ok) {
          statusDiv.innerHTML = `
            <div style="background-color: #D1FAE5; color: #065F46; padding: 1rem; border-radius: 0.25rem; margin-top: 1rem;">
              <i class="fas fa-check-circle"></i> File queued for reprocessing. Task ID: ${data.task_id}
              <br><small>Refresh the page in a few moments to see updated status.</small>
            </div>
          `;
          // Reload page after 3 seconds
          setTimeout(() => window.location.reload(), 3000);
        } else {
          statusDiv.innerHTML = `
            <div class="error-message" style="margin-top: 1rem;">
              <i class="fas fa-exclamation-triangle"></i> Error: ${data.detail || 'Failed to reprocess file'}
            </div>
          `;
          button.disabled = false;
          button.innerHTML = '<i class="fas fa-redo"></i> Retry Processing';
        }
      } catch (error) {
        statusDiv.innerHTML = `
          <div class="error-message" style="margin-top: 1rem;">
            <i class="fas fa-exclamation-triangle"></i> Network error: ${error.message}
          </div>
        `;
        button.disabled = false;
        button.innerHTML = '<i class="fas fa-redo"></i> Retry Processing';
      }
    }
    
    // JavaScript for handling per-subtask retry
    async function retrySubtask(subtaskName, buttonId) {
      const fileId = {{ file.id | tojson }};
      const button = document.getElementById(buttonId);
      const statusDiv = document.getElementById('subtask-status-' + subtaskName);
      
      // Disable button and show loading
      button.disabled = true;
      button.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Retrying...';
      if (statusDiv) {
        statusDiv.innerHTML = '';
      }
      
      try {
        const response = await fetch(`/api/files/${fileId}/retry-subtask?subtask_name=${subtaskName}`, {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json'
          }
        });
        
        const data = await response.json();
        
        if (response.ok) {
          if (statusDiv) {
            statusDiv.innerHTML = `
              <div style="background-color: #D1FAE5; color: #065F46; padding: 0.5rem; border-radius: 0.25rem; margin-top: 0.5rem; font-size: 0.75rem;">
                <i class="fas fa-check-circle"></i> Queued for retry. Task ID: ${data.task_id}
              </div>
            `;
          }
          // Reload page after 2 seconds
          setTimeout(() => window.location.reload(), 2000);
        } else {
          if (statusDiv) {
            statusDiv.innerHTML = `
              <div style="background-color: #FEE2E2; color: #991B1B; padding: 0.5rem; border-radius: 0.25rem; margin-top: 0.5rem; font-size: 0.75rem;">
                <i class="fas fa-exclamation-triangle"></i> Error: ${data.detail || 'Failed to retry'}
              </div>
            `;
          }
          button.disabled = false;
          button.innerHTML = '<i class="fas fa-redo"></i> Retry';
        }
      } catch (error) {
        if (statusDiv) {
          statusDiv.innerHTML = `
            <div style="background-color: #FEE2E2; color: #991B1B; padding: 0.5rem; border-radius: 0.25rem; margin-top: 0.5rem; font-size: 0.75rem;">
              <i class="fas fa-exclamation-triangle"></i> Network error: ${error.message}
            </div>
          `;
        }
        button.disabled = false;
        button.innerHTML = '<i class="fas fa-redo"></i> Retry';
      }
    }
    
    // Toggle logs visibility
    function toggleLogs() {
      const logsContent = document.getElementById('logs-content');
      const toggleIcon = document.getElementById('logs-toggle-icon');
      
      if (logsContent.classList.contains('expanded')) {
        logsContent.classList.remove('expanded');
        toggleIcon.classList.remove('fa-chevron-up');
        toggleIcon.classList.add('fa-chevron-down');
      } else {
        logsContent.classList.add('expanded');
        toggleIcon.classList.remove('fa-chevron-down');
        toggleIcon.classList.add('fa-chevron-up');
      }
    }

    // Toggle verbose detail for a log entry
    function toggleDetail(logId) {
      const detail = document.getElementById('detail-' + logId);
      const icon = document.getElementById('detail-icon-' + logId);
      if (detail.classList.contains('visible')) {
        detail.classList.remove('visible');
        icon.classList.remove('fa-chevron-up');
        icon.classList.add('fa-chevron-right');
      } else {
        detail.classList.add('visible');
        icon.classList.remove('fa-chevron-right');
        icon.classList.add('fa-chevron-up');
      }
    }
  </script>
  {% endif %}
{% endblock %}

{% block content %}
<div class="detail-container">
  <a href="/files" class="back-button">
    <i class="fas fa-arrow-left"></i>
    Back to File List
  </a>
  
  {% if error %}
  <div class="error-message">
    <p><strong>Error:</strong> {{ error }}</p>
  </div>
  {% else %}
  
  <!-- File Information Card -->
  <div class="detail-card">
    <h3>File Information</h3>
    <div class="detail-grid">
      <div class="detail-item">
        <span class="detail-label">File ID</span>
        <span class="detail-value">{{ file.id }}</span>
      </div>
      <div class="detail-item">
        <span class="detail-label">Original Filename</span>
        <span class="detail-value">{{ file.original_filename }}</span>
      </div>
      <div class="detail-item">
        <span class="detail-label">File Hash</span>
        <span class="detail-value" style="font-family: monospace; font-size: 0.875rem;">{{ file.filehash }}</span>
      </div>
      <div class="detail-item">
        <span class="detail-label">File Size</span>
        <span class="detail-value">{{ (file.file_size / 1024) | round(2) }} KB ({{ file.file_size }} bytes)</span>
      </div>
      <div class="detail-item">
        <span class="detail-label">MIME Type</span>
        <span class="detail-value">{{ file.mime_type or 'N/A' }}</span>
      </div>
      <div class="detail-item">
        <span class="detail-label">Created At</span>
        <span class="detail-value">{{ file.created_at.strftime('%Y-%m-%d %H:%M:%S') if file.created_at else 'N/A' }}</span>
      </div>
      <div class="detail-item">
        <span class="detail-label">Local Path</span>
        <span class="detail-value" style="font-family: monospace; font-size: 0.875rem;">{{ file.local_filename }}</span>
      </div>
      <div class="detail-item">
        <span class="detail-label">File on Disk</span>
        <span class="detail-value">
          {% if file_exists %}
          <span class="file-status-indicator exists">
            <i class="fas fa-check-circle"></i> File exists
          </span>
          {% else %}
          <span class="file-status-indicator missing">
            <i class="fas fa-times-circle"></i> File not found
          </span>
          {% endif %}
        </span>
      </div>
    </div>
  </div>
  
  <!-- Step Summary Card -->
  {% if step_summary %}
  <div class="detail-card">
    <h3>Processing Status Summary</h3>
    <div class="step-summary">
      <div class="summary-card main-steps">
        <div class="summary-title">Main Processing Steps</div>
        <div class="summary-counts">
          {% if step_summary.main.success > 0 %}
          <div class="summary-count">
            <span class="count-badge success">{{ step_summary.main.success }}</span>
            <span>Success</span>
          </div>
          {% endif %}
          {% if step_summary.main.failure > 0 %}
          <div class="summary-count">
            <span class="count-badge failure">{{ step_summary.main.failure }}</span>
            <span>Failed</span>
          </div>
          {% endif %}
          {% if step_summary.main.in_progress > 0 %}
          <div class="summary-count">
            <span class="count-badge in-progress">{{ step_summary.main.in_progress }}</span>
            <span>In Progress</span>
          </div>
          {% endif %}
          {% if step_summary.main.queued > 0 %}
          <div class="summary-count">
            <span class="count-badge queued">{{ step_summary.main.queued }}</span>
            <span>Queued</span>
          </div>
          {% endif %}
        </div>
      </div>
      
      {% if step_summary.total_upload_tasks > 0 %}
      <div class="summary-card upload-steps">
        <div class="summary-title">Upload Destinations</div>
        <div class="summary-counts">
          {% if step_summary.uploads.success > 0 %}
          <div class="summary-count">
            <span class="count-badge success">{{ step_summary.uploads.success }}</span>
            <span>Success</span>
          </div>
          {% endif %}
          {% if step_summary.uploads.failure > 0 %}
          <div class="summary-count">
            <span class="count-badge failure">{{ step_summary.uploads.failure }}</span>
            <span>Failed</span>
          </div>
          {% endif %}
          {% if step_summary.uploads.in_progress > 0 %}
          <div class="summary-count">
            <span class="count-badge in-progress">{{ step_summary.uploads.in_progress }}</span>
            <span>In Progress</span>
          </div>
          {% endif %}
          {% if step_summary.uploads.queued > 0 %}
          <div class="summary-count">
            <span class="count-badge queued">{{ step_summary.uploads.queued }}</span>
            <span>Queued</span>
          </div>
          {% endif %}
        </div>
      </div>
      {% endif %}
    </div>
  </div>
  {% endif %}
  
  <!-- Processing History Card (Collapsible) -->
  <div class="detail-card">
    <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem;">
      <h3 style="margin: 0;">Processing History</h3>
      {% if file_exists %}
      <button id="reprocess-btn" onclick="reprocessFile()" style="background-color: #3182ce; color: white; padding: 0.5rem 1rem; border: none; border-radius: 0.25rem; cursor: pointer; font-weight: 600;">
        <i class="fas fa-redo"></i> Retry Processing
      </button>
      {% endif %}
    </div>
    <div id="reprocess-status"></div>
    {% if logs %}
    <div class="logs-toggle" onclick="toggleLogs()">
      <i id="logs-toggle-icon" class="fas fa-chevron-down"></i>
      <span>View Full Processing Logs ({{ logs|length }} entries)</span>
    </div>
    <div id="logs-content" class="logs-content">
      <div class="timeline">
        {% for log in logs %}
        <div class="timeline-item">
          <div class="timeline-marker {{ log.status.lower().replace(' ', '_') }}"></div>
          <div class="timeline-content {{ log.status.lower().replace(' ', '_') }}">
            <div class="timeline-title">
              {{ log.step_name }} - <span style="text-transform: capitalize;">{{ log.status }}</span>
            </div>
            {% if log.message %}
            <div class="timeline-message">{{ log.message }}</div>
            {% endif %}
            <div class="timeline-meta">
              <span>{{ log.timestamp.strftime('%Y-%m-%d %H:%M:%S') if log.timestamp else 'N/A' }}</span>
              {% if log.task_id %}
              <span class="timeline-task-id">Task: {{ log.task_id[:16] }}...</span>
              {% endif %}
            </div>
            {% if log.detail %}
            <div class="timeline-detail-toggle" onclick="toggleDetail({{ loop.index }})">
              <i id="detail-icon-{{ loop.index }}" class="fas fa-chevron-right"></i>
              <span>Show worker log detail</span>
            </div>
            <div id="detail-{{ loop.index }}" class="timeline-detail">{{ log.detail }}</div>
            {% endif %}
          </div>
        </div>
        {% endfor %}
      </div>
    </div>
    {% else %}
    <div class="no-logs">
      <i class="fas fa-clipboard-list"></i>
      <p>No processing logs found for this file.</p>
      <p style="margin-top: 0.5rem; font-size: 0.875rem;">The file may not have been processed yet.</p>
    </div>
    {% endif %}
  </div>
  
  <!-- Process Flow Visualization Card -->
  {% if flow_data %}
  <div class="detail-card">
    <h3>Process Flow Visualization</h3>
    <div style="padding: 1rem 0;">
      {% for stage in flow_data %}
      <div class="flow-stage">
        <!-- Status indicator -->
        <div class="flow-indicator {{ stage.status.lower().replace(' ', '_') }}">
          {% if stage.status == 'success' %}<i class="fas fa-check"></i>
          {% elif stage.status == 'failure' %}<i class="fas fa-times"></i>
          {% elif stage.status == 'in_progress' %}<i class="fas fa-spinner fa-spin"></i>
          {% elif stage.status in ['pending', 'queued'] %}<i class="fas fa-clock"></i>
          {% else %}<i class="fas fa-circle"></i>{% endif %}
        </div>
        
        <!-- Stage content -->
        <div class="flow-content {{ stage.status.lower().replace(' ', '_') }}">
          <div class="flow-title">{{ stage.label }}</div>
          {% if stage.message %}
          <div class="flow-message">{{ stage.message }}</div>
          {% endif %}
          {% if stage.status == 'not_run' %}
          <div style="color: #718096; font-size: 0.875rem; font-style: italic;">Not executed</div>
          {% endif %}
          {% if stage.can_retry and stage.status == 'failure' %}
          <button 
            id="retry-btn-{{ stage.key }}" 
            class="retry-btn" 
            onclick="retrySubtask('{{ stage.key }}', 'retry-btn-{{ stage.key }}')"
            style="margin-top: 0.5rem;">
            <i class="fas fa-redo"></i> Retry from this step
          </button>
          {% endif %}
          {% if stage.timestamp %}
          <div class="flow-timestamp">
            {{ stage.timestamp.strftime('%Y-%m-%d %H:%M:%S') }}
          </div>
          {% endif %}
        </div>
      </div>
      
      <!-- Upload branches (if this stage has them) -->
      {% if stage.is_branch_parent and stage.branches %}
      <div class="flow-branches">
        {% for branch in stage.branches %}
        <div class="branch-item">
          <div class="branch-indicator {{ branch.status.lower().replace(' ', '_') }}">
            {% if branch.status == 'success' %}<i class="fas fa-check"></i>
            {% elif branch.status == 'failure' %}<i class="fas fa-times"></i>
            {% elif branch.status == 'in_progress' %}<i class="fas fa-spinner fa-spin"></i>
            {% else %}<i class="fas fa-clock"></i>{% endif %}
          </div>
          <div class="branch-content {% if branch.status == 'failure' %}failure{% endif %}">
            <div class="branch-title">
              <span>{{ branch.label }}</span>
              {% if branch.can_retry and branch.status == 'failure' %}
              <button 
                id="retry-btn-{{ branch.key }}" 
                class="retry-btn" 
                onclick="retrySubtask('{{ branch.key }}', 'retry-btn-{{ branch.key }}')">
                <i class="fas fa-redo"></i> Retry
              </button>
              {% endif %}
            </div>
            {% if branch.message %}
            <div class="branch-message">{{ branch.message }}</div>
            {% endif %}
            {% if branch.timestamp %}
            <div style="color: #718096; font-size: 0.65rem; margin-top: 0.25rem;">
              {{ branch.timestamp.strftime('%Y-%m-%d %H:%M:%S') }}
            </div>
            {% endif %}
            <div id="subtask-status-{{ branch.key }}"></div>
          </div>
        </div>
        {% endfor %}
      </div>
      {% endif %}
      
      <!-- Connector line (except for last item) -->
      {% if not loop.last %}
      <div class="flow-connector"></div>
      {% endif %}
      {% endfor %}
    </div>
  </div>
  {% endif %}
  
  <!-- File Preview Card -->
  {% if file_exists or processed_exists %}
  <div class="detail-card">
    <h3>File Previews</h3>
    <div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 2rem;">
      {% if file_exists %}
      <div>
        <h4 style="font-weight: 600; color: #2d3748; margin-bottom: 1rem;">Original File</h4>
        <div style="border: 2px solid #e2e8f0; border-radius: 0.5rem; overflow: hidden; background-color: #f7fafc;">
          {% if file.mime_type and file.mime_type.startswith('image/') %}
          <!-- Image preview -->
          <img src="/api/files/{{ file.id }}/preview?version=original" alt="{{ file.original_filename }}" style="width: 100%; height: auto; display: block;">
          {% elif file.mime_type and file.mime_type.startswith('text/') %}
          <!-- Text file preview -->
          <iframe src="/api/files/{{ file.id }}/preview?version=original" style="width: 100%; height: 600px; border: none;"></iframe>
          {% else %}
          <!-- PDF and other documents -->
          <iframe src="/api/files/{{ file.id }}/preview?version=original" style="width: 100%; height: 600px; border: none;"></iframe>
          {% endif %}
        </div>
        <div style="margin-top: 0.5rem; text-align: center; display: flex; gap: 1rem; justify-content: center;">
          <a href="/api/files/{{ file.id }}/preview?version=original" target="_blank" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
            <i class="fas fa-external-link-alt"></i> Open in new tab
          </a>
          <a href="/api/files/{{ file.id }}/download?version=original" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
            <i class="fas fa-download"></i> Download
          </a>
        </div>
      </div>
      {% endif %}
      
      {% if processed_exists %}
      <div>
        <h4 style="font-weight: 600; color: #2d3748; margin-bottom: 1rem;">Processed File</h4>
        <div style="border: 2px solid #e2e8f0; border-radius: 0.5rem; overflow: hidden; background-color: #f7fafc;">
          <!-- Processed files are typically PDFs -->
          <iframe src="/api/files/{{ file.id }}/preview?version=processed" style="width: 100%; height: 600px; border: none;"></iframe>
        </div>
        <div style="margin-top: 0.5rem; text-align: center; display: flex; gap: 1rem; justify-content: center;">
          <a href="/api/files/{{ file.id }}/preview?version=processed" target="_blank" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
            <i class="fas fa-external-link-alt"></i> Open in new tab
          </a>
          <a href="/api/files/{{ file.id }}/download?version=processed" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
            <i class="fas fa-download"></i> Download
          </a>
        </div>
      </div>
      {% endif %}
    </div>
  </div>
  {% endif %}
  
  {% endif %}
</div>
{% endblock %}