<?php
header('Content-Type: application/json; charset=utf-8');

const HA_BASE = 'https://ha.chaegeon.com';
const HA_LONG_LIVED_TOKEN = 'REDACTED_HA_TOKEN';
const POKE_ENTITY_ID = 'counter.kog_jjireugi';

function ha_get_entity_state($entity_id) {
    $url = rtrim(HA_BASE, '/') . '/api/states/' . urlencode($entity_id);
    $ch = curl_init($url);
    curl_setopt_array($ch, [
        CURLOPT_HTTPHEADER => [
            'Authorization: Bearer ' . HA_LONG_LIVED_TOKEN,
            'Content-Type: application/json'
        ],
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT => 5,
    ]);
    $res = curl_exec($ch);
    $errno = curl_errno($ch);
    $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    if ($errno !== 0 || $status < 200 || $status >= 300) {
        return null;
    }

    $json = json_decode($res, true);
    // HA는 상태값을 문자열로 줍니다. 숫자면 (string)"12" 형태.
    if (!is_array($json) || !isset($json['state'])) return null;

    // 숫자로 캐스팅 시도 (실패해도 문자열 반환 가능)
    $stateRaw = $json['state'];
    if (is_numeric($stateRaw)) {
        return (int)$stateRaw;
    }
    return $stateRaw; // 숫자가 아니면 원본 문자열
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
	$password = $_POST['password'] ?? '';

	if ($password === '0010') {
		echo json_encode(['result' => 'ok']);
	} else {
		echo json_encode(['result' => 'fail']);
	}
	exit;
}

if ($_SERVER['REQUEST_METHOD'] === 'GET') {
	if (isset($_GET['failMessages'])) {
		echo json_encode([
			'failMessages' => [
				'비밀번호가 틀립니다.',
			]
		], JSON_UNESCAPED_UNICODE);
		exit;
	}

    if (isset($_GET['pokeCount'])) {
        // HA 엔티티 상태 읽기
        $count = ha_get_entity_state(POKE_ENTITY_ID);

        if ($count === null) {
            http_response_code(502);
            echo json_encode([
                'ok' => false,
                'error' => 'failed_to_fetch_from_ha'
            ], JSON_UNESCAPED_UNICODE);
            exit;
        }

        echo json_encode([
            'ok' => true,
            'count' => $count
        ], JSON_UNESCAPED_UNICODE);
        exit;
    }

    http_response_code(404);
    echo json_encode(['error' => 'not_found']);
    exit;
}

http_response_code(405);
echo json_encode(['error' => 'method_not_allowed']);
?>