<?php
declare(strict_types=1);

define('CONTROL_API_LIBRARY', true);
require_once __DIR__ . '/../public/api.php';

function touch_panel_json(array $payload, int $code = 0): never
{
    fwrite(STDOUT, json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . PHP_EOL);
    exit($code);
}

try {
    $command = (string)($argv[1] ?? 'status');

    if ($command === 'status') {
        touch_panel_json([
            'ok' => true,
            'data' => collect_snapshot(false),
        ]);
    }

    if ($command === 'fan') {
        $mode = (string)($argv[2] ?? 'auto');
        $pwm = max(0, min(255, (int)($argv[3] ?? 120)));
        if (!in_array($mode, ['auto', 'manual', 'off'], true)) {
            touch_panel_json([
                'ok' => false,
                'error' => 'bad_mode',
            ], 2);
        }

        set_control_state($mode, $pwm);
        add_fan_action(
            'touch_panel_fan_set',
            $mode,
            $pwm,
            'qt touch panel fan control',
            true
        );

        touch_panel_json([
            'ok' => true,
            'data' => collect_snapshot(false),
        ]);
    }

    touch_panel_json([
        'ok' => false,
        'error' => 'unknown_command',
    ], 2);
} catch (Throwable $e) {
    touch_panel_json([
        'ok' => false,
        'error' => 'exception',
        'message' => $e->getMessage(),
    ], 1);
}