<?php
// First-run setup wizard.
// HOST1 path: blank master.conf → fill hostnames → write master.conf + host1.conf → scheduler.
// HOST2 path: state file present → pull master.conf from HOST1 → fill host2.conf → scheduler.

$detectedHostname = trim(shell_exec('hostname -s') ?: '');

// Check for setup state file pushed by HOST1
$setupState   = vv_setup_state_read();
$host1FromState = $setupState['host1_hostname'] ?? '';

// Determine if HOST2 scenario: state file present but master.conf has blank HOST1
$_master    = vv_read_conf_raw('master.conf');
preg_match('/^\s*HOST1\s*=\s*"([^"]*)"/m', $_master, $_h1m);
$masterHost1 = trim($_h1m[1] ?? '');

// Determine local host slot (if master.conf has hostnames, we may already know)
$isHost2Flow = !empty($host1FromState) && empty($masterHost1);

// If master.conf has HOST1/HOST2 filled but local host.conf is missing:
// This is the "master was pushed, just need the local conf" scenario
$myHostId    = vv_detect_host();  // may be 'host2' if master.conf was already pushed
$confMissing = $myHostId !== 'unknown' && !file_exists(CONF_DIR . '/' . $myHostId . '.conf');
$isConfOnlyFlow = !empty($masterHost1) && $confMissing;
?>
<link rel="stylesheet" href="/plugins/varaverk/css/varaverk.css">

<style>
#vv-setup {
  max-width: 560px;
  margin: 48px auto 0;
  background: #141414;
  border: 1px solid #2a2a2a;
  border-radius: 6px;
  padding: 36px 40px 40px;
  font-family: monospace;
  color: #ccc;
}
#vv-setup h1 { margin: 0 0 6px; font-size: 18px; color: #e0e0e0; font-weight: normal; letter-spacing: .04em; }
#vv-setup .vv-setup-sub { font-size: 12px; color: #555; margin-bottom: 32px; }
#vv-setup .vv-setup-field { margin-bottom: 20px; }
#vv-setup label { display: block; font-size: 11px; color: #888; margin-bottom: 6px; text-transform: uppercase; letter-spacing: .06em; }
#vv-setup input[type=text] { width: 100%; box-sizing: border-box; background: #0d0d0d; border: 1px solid #333; color: #ddd; padding: 7px 10px; border-radius: 3px; font-family: monospace; font-size: 13px; }
#vv-setup input[type=text]:focus { outline: none; border-color: #555; }
#vv-setup .vv-setup-hint { font-size: 11px; color: #555; margin-top: 5px; }
#vv-setup .vv-setup-role { display: flex; gap: 10px; margin-bottom: 24px; }
#vv-setup .vv-setup-role-btn { flex: 1; padding: 10px 0; background: #1a1a1a; border: 1px solid #333; border-radius: 3px; color: #888; font-family: monospace; font-size: 12px; cursor: pointer; text-align: center; transition: border-color .15s, color .15s; }
#vv-setup .vv-setup-role-btn.active { border-color: #555; color: #ccc; background: #222; }
#vv-setup .vv-setup-conditional { display: none; }
#vv-setup .vv-setup-conditional.visible { display: block; }
#vv-setup hr.vv-setup-divider { border: none; border-top: 1px solid #222; margin: 24px 0; }
#vv-setup-btn { width: 100%; padding: 10px; background: #1e1e1e; border: 1px solid #444; color: #ccc; font-family: monospace; font-size: 13px; border-radius: 3px; cursor: pointer; letter-spacing: .03em; }
#vv-setup-btn:hover { border-color: #666; color: #eee; }
#vv-setup-btn:disabled { opacity: .45; cursor: default; }
#vv-setup-status { margin-top: 12px; font-size: 12px; color: #666; text-align: center; min-height: 16px; }
#vv-setup-status.ok  { color: #4a8; }
#vv-setup-status.err { color: #a44; }
.vv-setup-info-box { background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 3px; padding: 12px 14px; margin-bottom: 24px; font-size: 12px; color: #777; line-height: 1.6; }
.vv-setup-info-box strong { color: #aaa; }
</style>

<div id="vv-setup">

<?php if ($isConfOnlyFlow): ?>
  <!-- master.conf was pushed by HOST1, just need local host.conf -->
  <?php $slotLabel = strtoupper($myHostId); ?>
  <h1>⬡ Varaverk — <?= htmlspecialchars($slotLabel) ?> Setup</h1>
  <div class="vv-setup-sub">master.conf received from HOST1. Create your local configuration to continue.</div>

  <div class="vv-setup-info-box">
    <strong>HOST1:</strong> <?= htmlspecialchars($masterHost1) ?><br>
    <strong>This server:</strong> <?= htmlspecialchars($detectedHostname) ?> → <?= htmlspecialchars($slotLabel) ?><br>
    <strong>Creating:</strong> <?= htmlspecialchars($myHostId) ?>.conf
  </div>

  <button id="vv-setup-btn" onclick="vvDoConfOnly()">Create <?= htmlspecialchars($myHostId) ?>.conf and continue →</button>
  <div id="vv-setup-status"></div>

  <script>
  function vvDoConfOnly() {
    const btn    = document.getElementById('vv-setup-btn');
    const status = document.getElementById('vv-setup-status');
    btn.disabled = true; btn.textContent = 'Creating…';
    const params = new URLSearchParams({
      csrf_token: typeof csrf_token !== 'undefined' ? csrf_token : '',
      action: 'save',
      host1: <?= json_encode($masterHost1) ?>,
      host2: <?= json_encode(trim(preg_match('/^\s*HOST2\s*=\s*"([^"]*)"/m', $_master, $m2) ? $m2[1] : '')) ?>,
      my_slot: <?= json_encode($myHostId) ?>,
      my_hostname: <?= json_encode($detectedHostname) ?>,
    });
    fetch('/plugins/varaverk/api/setup.php', {
      method: 'POST', headers: {'Content-Type': 'application/x-www-form-urlencoded'}, body: params
    }).then(r => r.json()).then(d => {
      if (d.ok) {
        status.textContent = '✓ Created — loading…'; status.className = 'ok';
        setTimeout(() => { window.location.href = '?tab=scheduler&vv_setup=' + encodeURIComponent(<?= json_encode($myHostId . '.conf') ?>); }, 600);
      } else {
        btn.disabled = false; btn.textContent = 'Create <?= htmlspecialchars($myHostId) ?>.conf and continue →';
        status.textContent = '✗ ' + (d.error ?? 'Error'); status.className = 'err';
      }
    }).catch(() => { btn.disabled = false; btn.textContent = 'Create <?= htmlspecialchars($myHostId) ?>.conf and continue →'; status.textContent = '✗ Request failed'; status.className = 'err'; });
  }
  </script>

<?php elseif ($isHost2Flow): ?>
  <!-- State file present, master.conf blank — HOST2 pull flow -->
  <h1>⬡ Varaverk — Partner Setup</h1>
  <div class="vv-setup-sub">HOST1 has been configured. Pull their settings to continue.</div>

  <div class="vv-setup-info-box">
    <strong>HOST1 detected:</strong> <?= htmlspecialchars($host1FromState) ?><br>
    This server will pull master.conf from HOST1 via Tailscale + SSH.<br>
    <span style="color:#555">Requires SSH keys to be exchanged first (Partnership/ssh_setup.sh).</span>
  </div>

  <div class="vv-setup-field">
    <label>This server's hostname</label>
    <input type="text" id="vv-hostname" value="<?= htmlspecialchars($detectedHostname) ?>" autocomplete="off" spellcheck="false">
    <div class="vv-setup-hint">Must match Settings → Identification exactly</div>
  </div>

  <div class="vv-setup-field">
    <label>Your slot</label>
    <select id="vv-partner-slot" style="width:100%;box-sizing:border-box;background:#0d0d0d;border:1px solid #333;color:#ddd;padding:7px 10px;border-radius:3px;font-family:monospace;font-size:13px;">
      <option value="host2">HOST2</option>
      <option value="host3">HOST3</option>
      <option value="host4">HOST4</option>
    </select>
  </div>

  <button id="vv-setup-btn" onclick="vvDoPull()">Pull configuration from HOST1 →</button>
  <div id="vv-setup-status"></div>

  <script>
  function vvDoPull() {
    const btn      = document.getElementById('vv-setup-btn');
    const status   = document.getElementById('vv-setup-status');
    const hostname = document.getElementById('vv-hostname').value.trim();
    const slot     = document.getElementById('vv-partner-slot').value;
    if (!hostname) { status.textContent = '✗ Hostname required'; status.className = 'err'; return; }
    btn.disabled = true; btn.textContent = 'Pulling…';
    const params = new URLSearchParams({
      csrf_token: typeof csrf_token !== 'undefined' ? csrf_token : '',
      action: 'pull',
      host1_hostname: <?= json_encode($host1FromState) ?>,
      my_slot: slot,
      my_hostname: hostname,
    });
    fetch('/plugins/varaverk/api/setup.php', {
      method: 'POST', headers: {'Content-Type': 'application/x-www-form-urlencoded'}, body: params
    }).then(r => r.json()).then(d => {
      if (d.ok) {
        status.textContent = '✓ Configuration pulled — loading…'; status.className = 'ok';
        setTimeout(() => { window.location.href = d.redirect ?? '?tab=scheduler'; }, 600);
      } else {
        btn.disabled = false; btn.textContent = 'Pull configuration from HOST1 →';
        status.textContent = '✗ ' + (d.error ?? 'Error'); status.className = 'err';
      }
    }).catch(() => { btn.disabled = false; btn.textContent = 'Pull configuration from HOST1 →'; status.textContent = '✗ Request failed'; status.className = 'err'; });
  }
  </script>

<?php else: ?>
  <!-- Standard first-run: no state file, blank master.conf -->
  <h1>⬡ Varaverk — First Run</h1>
  <div class="vv-setup-sub">Set up your server identity before the plugin can start.</div>

  <div class="vv-setup-field">
    <label>This server's hostname</label>
    <input type="text" id="vv-hostname" value="<?= htmlspecialchars($detectedHostname) ?>" placeholder="unRAID-MyServer" autocomplete="off" spellcheck="false">
    <div class="vv-setup-hint">Must match Settings → Identification exactly (case-sensitive)</div>
  </div>

  <hr class="vv-setup-divider">

  <label style="margin-bottom:10px;display:block;">Server role</label>
  <div class="vv-setup-role">
    <div class="vv-setup-role-btn active" id="vv-role-primary" onclick="vvSetRole('primary')">
      Primary<br><span style="color:#555;font-size:10px;">HOST1 · first to be set up</span>
    </div>
    <div class="vv-setup-role-btn" id="vv-role-partner" onclick="vvSetRole('partner')">
      Partner<br><span style="color:#555;font-size:10px;">HOST2+ · joining an existing primary</span>
    </div>
  </div>

  <div class="vv-setup-conditional" id="vv-cond-primary">
    <div class="vv-setup-field">
      <label>Partner's hostname <span style="color:#444">(optional — can fill in later)</span></label>
      <input type="text" id="vv-partner-hostname" value="" placeholder="unRAID-PartnerServer" autocomplete="off" spellcheck="false">
    </div>
  </div>

  <div class="vv-setup-conditional" id="vv-cond-partner">
    <div class="vv-setup-field">
      <label>Primary server's hostname <span style="color:#a44">*required</span></label>
      <input type="text" id="vv-primary-hostname" value="" placeholder="unRAID-PrimaryServer" autocomplete="off" spellcheck="false">
    </div>
    <div class="vv-setup-field">
      <label>Your slot</label>
      <select id="vv-partner-slot" style="width:100%;box-sizing:border-box;background:#0d0d0d;border:1px solid #333;color:#ddd;padding:7px 10px;border-radius:3px;font-family:monospace;font-size:13px;">
        <option value="host2">HOST2</option>
        <option value="host3">HOST3</option>
        <option value="host4">HOST4</option>
      </select>
    </div>
  </div>

  <button id="vv-setup-btn" onclick="vvDoSetup()">Save and continue →</button>
  <div id="vv-setup-status"></div>

  <script>
  let vvRole = 'primary';
  function vvSetRole(role) {
    vvRole = role;
    document.getElementById('vv-role-primary').classList.toggle('active', role === 'primary');
    document.getElementById('vv-role-partner').classList.toggle('active', role === 'partner');
    document.getElementById('vv-cond-primary').classList.toggle('visible', role === 'primary');
    document.getElementById('vv-cond-partner').classList.toggle('visible', role === 'partner');
  }
  function vvDoSetup() {
    const hostname = document.getElementById('vv-hostname').value.trim();
    const status   = document.getElementById('vv-setup-status');
    const btn      = document.getElementById('vv-setup-btn');
    if (!hostname) { status.textContent = '✗ Hostname is required'; status.className = 'err'; return; }
    let host1 = '', host2 = '', mySlot = 'host1';
    if (vvRole === 'primary') {
      host1 = hostname;
      host2 = document.getElementById('vv-partner-hostname').value.trim();
      mySlot = 'host1';
    } else {
      const primary = document.getElementById('vv-primary-hostname').value.trim();
      if (!primary) { status.textContent = '✗ Primary hostname required'; status.className = 'err'; return; }
      mySlot = document.getElementById('vv-partner-slot').value;
      host1  = primary;
      if (mySlot === 'host2') host2 = hostname;
    }
    btn.disabled = true; btn.textContent = 'Saving…';
    const params = new URLSearchParams({
      csrf_token: typeof csrf_token !== 'undefined' ? csrf_token : '',
      action: 'save', host1, host2, my_slot: mySlot, my_hostname: hostname,
    });
    fetch('/plugins/varaverk/api/setup.php', {
      method: 'POST', headers: {'Content-Type': 'application/x-www-form-urlencoded'}, body: params
    }).then(r => r.json()).then(d => {
      if (d.ok) {
        status.textContent = '✓ Saved — loading…'; status.className = 'ok';
        setTimeout(() => { window.location.href = d.redirect ?? '?tab=scheduler&vv_setup=master.conf'; }, 600);
      } else {
        btn.disabled = false; btn.textContent = 'Save and continue →';
        status.textContent = '✗ ' + (d.error ?? 'Error'); status.className = 'err';
      }
    }).catch(() => { btn.disabled = false; btn.textContent = 'Save and continue →'; status.textContent = '✗ Request failed'; status.className = 'err'; });
  }
  </script>
<?php endif; ?>

</div>
