<?php
header("Content-Type: application/json");
header("Access-Control-Allow-Origin: *");

$action = $_GET['action'] ?? 'status';

function s95_query($sql) {
    $url = "http://10.1.0.3:5890/api/sentinel-brain.php?action=exec&cmd=" . urlencode("PGPASSWORD=admin123 psql -U admin -d adx_system -h 127.0.0.1 -t -A -c \"$sql\" 2>&1");
    $r = @file_get_contents($url);
    $d = @json_decode($r, true);
    return trim($d['output'] ?? '');
}

if ($action === 'status') {
    $out = ['ok' => true, 'ts' => date('c'), 'doctrine' => '62-CRM-PIPE-GUARDS', 'option' => 'B (reactivation with guards)'];
    
    // send_contacts total live
    $out['send_contacts_total'] = intval(s95_query("SELECT COUNT(*) FROM admin.send_contacts"));
    
    // Last 20 runs
    $rows_raw = s95_query("SELECT action, count_before, count_after, delta, rc, ts FROM admin.deliverads_runs ORDER BY ts DESC LIMIT 20");
    $runs = [];
    foreach (explode("\n", $rows_raw) as $line) {
        $parts = explode('|', $line);
        if (count($parts) >= 6) {
            $runs[] = [
                'action' => $parts[0],
                'count_before' => intval($parts[1]),
                'count_after' => intval($parts[2]),
                'delta' => intval($parts[3]),
                'rc' => intval($parts[4]),
                'ts' => $parts[5],
            ];
        }
    }
    $out['runs'] = $runs;
    
    // Stats 24h
    $ok_24h = intval(s95_query("SELECT COUNT(*) FROM admin.deliverads_runs WHERE ts > NOW() - interval '24 hours' AND rc = 0"));
    $err_24h = intval(s95_query("SELECT COUNT(*) FROM admin.deliverads_runs WHERE ts > NOW() - interval '24 hours' AND rc != 0"));
    $delta_today = intval(s95_query("SELECT COALESCE(SUM(delta), 0) FROM admin.deliverads_runs WHERE ts > DATE_TRUNC('day', NOW())"));
    $out['runs_ok_24h'] = $ok_24h;
    $out['runs_err_24h'] = $err_24h;
    $out['delta_today'] = $delta_today;
    
    // Last run age
    if (!empty($runs)) {
        $last_ts = strtotime($runs[0]['ts']);
        if ($last_ts) {
            $age = time() - $last_ts;
            $out['last_run_age'] = $age < 60 ? $age.'s' : ($age < 3600 ? round($age/60).'min' : round($age/3600).'h');
        }
    }
    
    // Cron status
    $cron_url = "http://10.1.0.3:5890/api/sentinel-brain.php?action=exec&cmd=" . urlencode("ls /etc/cron.d/deliverads-automation 2>/dev/null && echo ACTIVE || echo DISABLED");
    $cron_r = @json_decode(@file_get_contents($cron_url), true);
    $out['cron_status'] = strpos($cron_r['output'] ?? '', 'ACTIVE') !== false ? 'active' : 'disabled';
    
    echo json_encode($out, JSON_PRETTY_PRINT);
    exit;
}

if ($action === 'run_now') {
    $url = "http://10.1.0.3:5890/api/sentinel-brain.php?action=exec&cmd=" . urlencode("sudo -n -u www-data /usr/local/bin/deliverads-guard.sh sync_all 2>&1 | tail -c 500");
    $r = @file_get_contents($url);
    $d = @json_decode($r, true);
    echo json_encode(['ok' => true, 'output' => $d['output'] ?? '']);
    exit;
}

if ($action === 'disable') {
    $url = "http://10.1.0.3:5890/api/sentinel-brain.php?action=exec&cmd=" . urlencode("sudo -n mv /etc/cron.d/deliverads-automation /etc/cron.d/deliverads-automation.emergency-stop-" . date('Ymd-His'));
    $r = @file_get_contents($url);
    $d = @json_decode($r, true);
    echo json_encode(['ok' => true, 'action' => 'disabled', 'note' => 'renamed to .emergency-stop, not deleted (doctrine 59)', 'output' => $d['output'] ?? '']);
    exit;
}

if ($action === 'enable') {
    $url = "http://10.1.0.3:5890/api/sentinel-brain.php?action=exec&cmd=" . urlencode("sudo -n cp /tmp/deliverads.cron /etc/cron.d/deliverads-automation && ls -la /etc/cron.d/deliverads-automation");
    $r = @file_get_contents($url);
    $d = @json_decode($r, true);
    echo json_encode(['ok' => true, 'action' => 'enabled', 'output' => $d['output'] ?? '']);
    exit;
}

echo json_encode(['ok' => true, 'actions' => ['status', 'run_now', 'disable', 'enable']]);