<?php
// Blade Task Queue API — polled by sentinel-agent.ps1 every 60s
header("Content-Type: application/json");
$k = $_GET["k"] ?? $_POST["k"] ?? "";
if ($k !== "BLADE2026") { echo json_encode(["error"=>"auth"]); exit; }

$action = $_GET["action"] ?? $_POST["action"] ?? "poll";
$queue_dir = "/var/www/html/api/blade-tasks/";
@mkdir($queue_dir, 0777, true);

switch ($action) {
    case "poll":
        // Return pending tasks
        $tasks = [];
        foreach (glob($queue_dir . "*.json") as $f) {
            $t = json_decode(file_get_contents($f), true);
            if (($t["status"] ?? "") === "pending") {
                $tasks[] = $t;
            }
        }
        echo json_encode(["tasks" => $tasks, "count" => count($tasks)]);
        break;
        
    case "complete":
        $id = $_POST["task_id"] ?? "";
        $result = $_POST["result"] ?? "";
        $f = $queue_dir . $id . ".json";
        if (file_exists($f)) {
            $t = json_decode(file_get_contents($f), true);
            $t["status"] = "completed";
            $t["result"] = $result;
            $t["completed_at"] = date("c");
            file_put_contents($f, json_encode($t, JSON_PRETTY_PRINT));
            echo json_encode(["ok" => true]);
        }
        break;
        
    case "create":
        $id = "task_" . date("YmdHis") . "_" . substr(md5(rand()), 0, 6);
        $task = [
            "id" => $id,
            "goal" => $_POST["goal"] ?? "",
            "type" => $_POST["type"] ?? "powershell",
            "commands" => json_decode($_POST["commands"] ?? "[]", true) ?: [],
            "priority" => $_POST["priority"] ?? "normal",
            "status" => "pending",
            "created_at" => date("c")
        ];
        file_put_contents($queue_dir . $id . ".json", json_encode($task, JSON_PRETTY_PRINT));
        echo json_encode(["ok" => true, "task_id" => $id]);
        break;
}