{% extends "base.html" %}
{% block content %}

<div class="panel" id="scp-form-panel">
  <h2>SCP Pull — Fetch File from Remote Server</h2>
  <p class="confirm-text">
    Pull a disk image directly from a customer server via SCP.
    No laptop middle-hop — files land directly in the staging area.
    <strong>Supports files of any size.</strong>
  </p>

  <form id="scp-form" onsubmit="startScpPull(event)">
    <div class="row">
      <div class="form-group">
        <label>Remote Host</label>
        <input type="text" name="scp_host" required
               placeholder="10.0.0.50 or server.example.com">
      </div>
      <div class="form-group">
        <label>SSH Port</label>
        <input type="number" name="scp_port" value="22" min="1" max="65535">
      </div>
    </div>
    <div class="row">
      <div class="form-group">
        <label>Username</label>
        <input type="text" name="scp_user" required placeholder="root">
      </div>
      <div class="form-group">
        <label>Password</label>
        <input type="password" name="scp_pass" required placeholder="••••••••">
      </div>
    </div>
    <div class="form-group">
      <label>Remote File Path *</label>
      <input type="text" name="scp_path" required
             placeholder="/mnt/vmware/exchange-server.vmdk">
      <span class="hint">Full path to the disk image or archive on the remote server.</span>
    </div>
    <div class="row">
      <div class="form-group">
        <label>VM Name *</label>
        <input type="text" id="scp-vm-name" name="vm_name" required
               placeholder="e.g. exchange-prod">
      </div>
      <div class="form-group">
        <label>VM ID *</label>
        <input type="number" id="scp-vmid" name="vmid" required
               placeholder="e.g. 21050" min="21000" max="21100">
      </div>
    </div>

    <button type="submit" id="scp-start-btn">Start SCP Pull</button>
  </form>

  <!-- Progress area -->
  <div id="scp-status" class="hidden" style="margin-top:1rem;">
    <div id="scp-phase-label" style="margin-bottom:0.5rem;"></div>
    <div class="progress-bar">
      <div class="progress-fill" id="scp-progress-fill" style="width:0%">0%</div>
    </div>
    <div id="scp-error"></div>
  </div>
</div>

<!-- Analysis result (populated after pull completes) -->
<div id="scp-analysis-section"></div>

<script>
// Session ID for multi-user isolation
const SESSION_ID = '{{ session_id }}';

async function startScpPull(e) {
  e.preventDefault();
  const btn = document.getElementById('scp-start-btn');
  const status = document.getElementById('scp-status');
  const analysis = document.getElementById('scp-analysis-section');
  btn.disabled = true;
  analysis.innerHTML = '';
  status.classList.remove('hidden');
  document.getElementById('scp-error').textContent = '';

  const formData = new FormData(e.target);
  formData.append('session_id', SESSION_ID);

  setScpPhase('Connecting to remote server...', 0, true);

  try {
    const resp = await fetch('/scp/start', { method: 'POST', body: formData });
    const data = await resp.json();

    if (data.phase === 'error') {
      setScpPhase('SCP pull failed', 0, false);
      showScpError(data.error);
      btn.disabled = false;
      return;
    }

    // Poll progress
    const filename = data.filename;
    setScpPhase('Pulling file from remote server...', 0, true);

    for (;;) {
      await new Promise(r => setTimeout(r, 2000));
      try {
        const pr = await fetch('/scp/progress/' + SESSION_ID + '/' + encodeURIComponent(filename));
        const pdata = await pr.json();

        if (pdata.phase === 'complete') {
          setScpPhase('Pull complete (' + (pdata.file_size_gb || 0) + ' GiB)', 100, false);
          await new Promise(r => setTimeout(r, 500));
          // Run analysis
          setScpPhase('Step 2/2: Analysing source image...', 0, true);
          const fd = new FormData();
          fd.append('vmid', document.getElementById('scp-vmid').value);
          fd.append('filename', filename);
          fd.append('vm_name', document.getElementById('scp-vm-name').value.trim());
          fd.append('session_id', SESSION_ID);
          const ar = await fetch('/session/analyze', { method: 'POST', body: fd });
          document.getElementById('scp-analysis-section').innerHTML = await ar.text();
          document.getElementById('scp-status').classList.add('hidden');
          btn.disabled = false;
          return;
        }

        if (pdata.phase === 'error') {
          setScpPhase('SCP pull failed', 0, false);
          showScpError(pdata.error);
          btn.disabled = false;
          return;
        }

        if (pdata.phase === 'pulling') {
          const gb = (pdata.file_size_gb || 0).toFixed(1);
          let label = 'Pulling file... ' + gb + ' GiB';
          if (pdata.speed_mbps) label += ' (' + pdata.speed_mbps + ' MB/s)';
          setScpPhase(label, 0, true);
        }
      } catch (_) {}
    }
  } catch (err) {
    setScpPhase('SCP pull failed', 0, false);
    showScpError('Network error: ' + err.message);
    btn.disabled = false;
  }
}

function setScpPhase(label, pct, spinner) {
  const el = document.getElementById('scp-phase-label');
  if (el) el.innerHTML = (spinner ? '<span class="spinner"></span> ' : '') + label;
  const fill = document.getElementById('scp-progress-fill');
  if (fill) { fill.style.width = pct + '%'; fill.textContent = pct > 0 ? pct + '%' : ''; }
}

function showScpError(msg) {
  const el = document.getElementById('scp-error');
  if (el) el.innerHTML += '<div class="error" style="margin-top:0.5rem;">' + msg + '</div>';
}
</script>

{% endblock %}