<?php
/**
 * ambre-pw-trigger.php · AMBRE · launch Playwright test in background
 * GET ?script=X · launches v76-scripts/X.sh with nohup, returns immediately
 */
header("Content-Type: application/json; charset=utf-8");

$script = preg_replace("/[^a-z0-9-]/i", "", $_GET["script"] ?? "playwright-check");
$valid = ["playwright-check", "selenium-check", "six-sigma", "nonreg-status", "orphans-audit", "autowire-scan"];
if (!in_array($script, $valid)) {
    echo json_encode(["ok"=>false, "error"=>"script not allowed", "valid"=>$valid]);
    exit;
}

$path = "/var/www/html/api/v76-scripts/$script.sh";
if (!file_exists($path)) {
    echo json_encode(["ok"=>false, "error"=>"not found", "path"=>$path]);
    exit;
}

$ts = date("Ymd-His");
$log = "/tmp/ambre-pw-$script-$ts.log";

// Launch in background via nohup
$cmd = "nohup bash $path > $log 2>&1 &";
$start = microtime(true);
@shell_exec($cmd);
$elapsed = round((microtime(true)-$start)*1000);

// Check for process
sleep(1);
$proc = @shell_exec("pgrep -f "$script.sh" | head -1");

echo json_encode([
    "ok" => true,
    "script" => $script,
    "launched_at" => date("c"),
    "log" => $log,
    "elapsed_ms" => $elapsed,
    "process_pid" => trim($proc ?: "not detected"),
    "message" => "Script running in background. Check log file: $log",
], JSON_PRETTY_PRINT);