subscription.php

<?php

declare(strict_types=1);

require_once __DIR__ . '/functions.php';

require_setup_complete();

$id = trim((string) ($_GET['id'] ?? ''));
if ($id === '') {
    if (wants_json_response()) {
        error_response('Subscription ID is required.', 400);
    }
    http_response_code(400);
    echo 'Subscription ID is required.';
    exit;
}

$subscription = fetch_subscription($id);
if ($subscription === null) {
    if (wants_json_response()) {
        error_response('Subscription not found.', 404);
    }
    http_response_code(404);
    echo 'Subscription not found.';
    exit;
}

$status = subscription_status_detail($subscription);
if (!$status['ok']) {
    if (wants_json_response() || isset($_GET['format'])) {
        error_response($status['reason'], (int) $status['code']);
    }

    $branding = get_branding_settings();
    render_shell_start('Subscription Unavailable', $status['reason'], false);
    ?>
    <div class="mx-auto max-w-2xl">
        <section class="glass rounded-[28px] p-6 sm:p-8">
            <p class="text-xs font-semibold uppercase tracking-[0.28em] text-slate-500">Access blocked</p>
            <h2 class="mt-2 text-2xl font-extrabold text-slate-900"><?= html_escape($subscription['name']) ?></h2>
            <p class="mt-3 text-sm text-slate-600"><?= html_escape((string) $status['reason']) ?></p>
            <p class="mt-6 text-sm text-slate-500"><?= html_escape($branding['vpn_name']) ?></p>
        </section>
    </div>
    <?php
    render_shell_end();
    exit;
}

try {
    $sourceInfo = fetch_remote_json_source();
    $payload = build_default_subscription_payload($subscription, $sourceInfo['decoded']);
    $happ = build_happ_config($sourceInfo['decoded']);
    $countries = collect_countries_from_source($sourceInfo['decoded']);
} catch (Throwable $exception) {
    if (wants_json_response() || isset($_GET['format'])) {
        error_response($exception->getMessage(), 502);
    }
    http_response_code(502);
    echo html_escape($exception->getMessage());
    exit;
}

$format = strtolower(trim((string) ($_GET['format'] ?? '')));

if ($format === 'source') {
    header('Content-Type: application/json; charset=utf-8');
    echo $sourceInfo['raw'];
    exit;
}

// Default Happ import: many Happ clients expect a base64-encoded list of proxy URIs.
if ($format === 'happ') {
    header('Content-Type: text/plain; charset=utf-8');
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    echo base64_encode($header . $serversText);
    exit;
}

// Raw happ-compatible sing-box JSON (kept for debugging/advanced clients)
if ($format === 'happ_config' || $format === 'happ_json') {
    $happConfig = $happ['config'];
    $happConfig['meta'] = $payload['meta'] ?? null;
    $happConfig['remarks'] = $payload['remarks'] ?? null;
    json_response($happConfig);
}

// Base64-encoded happ JSON (some clients import base64-encoded config)
if ($format === 'happ_base64') {
    $happConfig = $happ['config'];
    $happConfig['meta'] = $payload['meta'] ?? null;
    $happConfig['remarks'] = $payload['remarks'] ?? null;
    header('Content-Type: text/plain; charset=utf-8');
    echo base64_encode(json_encode($happConfig, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
    exit;
}

// Wrapped happ JSON (some clients expect an envelope)
if ($format === 'happ_wrapped') {
    $happConfig = $happ['config'];
    $happConfig['meta'] = $payload['meta'] ?? null;
    $happConfig['remarks'] = $payload['remarks'] ?? null;
    json_response(['happ' => $happConfig, 'source' => $sourceInfo['url'] ?? null]);
}

// Combined Happ delivery: base64-encoded URI list + sing-box routing object
if ($format === 'happ_combo') {
    $happConfig = $happ['config'];

    // NOTE: no meta included here — clients like Happ break when meta is present.
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    $envelope = [
        'subscription' => base64_encode($header . $serversText),
        'routing' => $happConfig['route'] ?? null,
        'source' => $sourceInfo['url'] ?? null,
    ];

    json_response($envelope);
}

// Base64-encoded combined envelope (some clients expect single base64 payload)
if ($format === 'happ_combo_base64') {
    $happConfig = $happ['config'];

    // NOTE: base64-encoded envelope without meta
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    $envelope = [
        'subscription' => base64_encode($header . $serversText),
        'routing' => $happConfig['route'] ?? null,
        'source' => $sourceInfo['url'] ?? null,
    ];

    header('Content-Type: text/plain; charset=utf-8');
    echo base64_encode(json_encode($envelope, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
    exit;
}

// Split mode: minimal subscription (base64 URIs) and routing separately (no meta ever present)
if ($format === 'happ_split') {
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    $envelope = [
        'subscription' => base64_encode($header . $serversText),
        'routing' => $happ['config']['route'] ?? null,
        'source' => $sourceInfo['url'] ?? null,
    ];
    json_response($envelope);
}

if ($format === 'happ_split_base64') {
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    $envelope = [
        'subscription' => base64_encode($header . $serversText),
        'routing' => $happ['config']['route'] ?? null,
        'source' => $sourceInfo['url'] ?? null,
    ];
    header('Content-Type: text/plain; charset=utf-8');
    echo base64_encode(json_encode($envelope, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
    exit;
}

// Happ geo mode: provide base64 subscription and links to geoip/geosite DAT files
if ($format === 'happ_geo') {
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    $envelope = [
        'subscription' => base64_encode($header . $serversText),
        'geoip' => 'https://raw.githubusercontent.com/runetfreedom/russia-v2ray-rules-dat/release/geoip.dat',
        'geosite' => 'https://raw.githubusercontent.com/runetfreedom/russia-v2ray-rules-dat/release/geosite.dat',
        'source' => $sourceInfo['url'] ?? null,
    ];
    json_response($envelope);
}

if ($format === 'happ_geo_base64') {
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    $envelope = [
        'subscription' => base64_encode($header . $serversText),
        'geoip' => 'https://raw.githubusercontent.com/runetfreedom/russia-v2ray-rules-dat/release/geoip.dat',
        'geosite' => 'https://raw.githubusercontent.com/runetfreedom/russia-v2ray-rules-dat/release/geosite.dat',
        'source' => $sourceInfo['url'] ?? null,
    ];
    header('Content-Type: text/plain; charset=utf-8');
    echo base64_encode(json_encode($envelope, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
    exit;
}

if ($format === '' && wants_json_response()) {
    json_response($payload);
}

// Plain newline-separated list of server URIs (useful for simple clients)
if ($format === 'list') {
    header('Content-Type: text/plain; charset=utf-8');
    echo implode("\n", $payload['servers'] ?? []);
    exit;
}

// Base64-encoded subscription (many clients expect base64 of newline-separated URIs)
if ($format === 'base64') {
    header('Content-Type: text/plain; charset=utf-8');
    $serversText = implode("\n", $payload['servers'] ?? []);
    $header = build_happ_profile_header($subscription, $payload);
    echo base64_encode($header . $serversText);
    exit;
}

$branding = get_branding_settings();
$subscriptionUrl = absolute_app_url('subscription/' . $subscription['id']);
$happUrl = $subscriptionUrl . '?format=happ';
$sourceUrl = $subscriptionUrl . '?format=source';
$jsonUrl = $subscriptionUrl . '?response=json';

render_shell_start($subscription['name'], 'Dynamic subscription page with raw, source, and Happ delivery modes.', false);
?>
<div class="mx-auto max-w-5xl space-y-6">
    <section class="glass rounded-[32px] p-6 sm:p-8">
        <div class="flex flex-col gap-6 lg:flex-row lg:items-start lg:justify-between">
            <div class="max-w-2xl">
                <p class="text-xs font-semibold uppercase tracking-[0.28em] text-slate-500"><?= html_escape($branding['vpn_name']) ?></p>
                <div class="mt-3 flex flex-wrap items-center gap-3">
                    <h1 class="text-3xl font-extrabold tracking-tight text-slate-900"><?= html_escape($subscription['name']) ?></h1>
                    <?php if ((string) $subscription['badge'] !== ''): ?>
                        <span class="rounded-full bg-slate-900 px-3 py-1 text-xs font-semibold text-white"><?= html_escape($subscription['badge']) ?></span>
                    <?php endif; ?>
                </div>
                <p class="mt-4 text-sm leading-7 text-slate-600"><?= html_escape((string) $subscription['description']) ?></p>
                <div class="mt-5 flex flex-wrap gap-3 text-sm text-slate-500">
                    <span>Plan: <?= html_escape((string) ($subscription['plan_name'] ?? 'Custom')) ?></span>
                    <span>Telegram: <?= html_escape((string) ($subscription['telegram_id'] ?: 'Not linked')) ?></span>
                    <span>Expires: <?= html_escape($subscription['expires_at']) ?> UTC</span>
                </div>
            </div>
            <div class="glass-dark rounded-[28px] p-5 text-white shadow-xl">
                <p class="text-xs font-semibold uppercase tracking-[0.28em] text-white/60">Countdown</p>
                <p id="countdown" class="mt-3 text-3xl font-extrabold">Calculating...</p>
                <p class="mt-2 text-sm text-white/70">RU traffic bypasses VPN directly. All other traffic routes through the proxy selector.</p>
            </div>
        </div>
    </section>

    <div class="grid gap-6 xl:grid-cols-[1.1fr_0.9fr]">
        <section class="glass rounded-[28px] p-6">
            <div class="mb-5">
                <p class="text-xs font-semibold uppercase tracking-[0.28em] text-slate-500">Subscription Links</p>
                <h2 class="mt-2 text-xl font-extrabold text-slate-900">Import and API targets</h2>
            </div>
            <div class="space-y-4 text-sm text-slate-600">
                <div class="rounded-2xl bg-white/70 p-4">
                    <p class="font-semibold text-slate-900">Public page / default endpoint</p>
                    <code class="mt-2 block break-all text-xs"><?= html_escape($subscriptionUrl) ?></code>
                </div>
                <div class="rounded-2xl bg-white/70 p-4">
                    <p class="font-semibold text-slate-900">Happ / sing-box config</p>
                    <code class="mt-2 block break-all text-xs"><?= html_escape($happUrl) ?></code>
                </div>
            </div>
        </section>

        <section class="glass rounded-[28px] p-6">
            <div class="mb-5">
                <p class="text-xs font-semibold uppercase tracking-[0.28em] text-slate-500">Happ Import</p>
                <h2 class="mt-2 text-xl font-extrabold text-slate-900">Quick instructions</h2>
            </div>
            <ol class="space-y-3 text-sm text-slate-600">
                <li>1. Open your Happ-compatible client and choose import from URL.</li>
                <li>2. Paste the Happ link from this page: <code>?format=happ</code>.</li>
                <li>3. Keep updates enabled so the client refreshes as the external JSON source changes.</li>
                <li>4. If you need the untouched source for debugging, use <code>?format=source</code>.</li>
            </ol>
            <div class="mt-5 rounded-2xl bg-white/70 p-4 text-sm text-slate-600">
                <p class="font-semibold text-slate-900">Detected countries</p>
                <div class="mt-3 flex flex-wrap gap-2">
                    <?php foreach ($countries as $country): ?>
                        <span class="rounded-full border border-white/70 bg-white px-3 py-1 text-xs font-semibold text-slate-700"><?= html_escape((string) $country) ?></span>
                    <?php endforeach; ?>
                </div>
            </div>
        </section>
    </div>
</div>
<script>
const expiresAt = new Date('<?= html_escape(gmdate('c', strtotime((string) $subscription['expires_at']))) ?>').getTime();
const countdownElement = document.getElementById('countdown');
function updateCountdown() {
    const now = Date.now();
    const diff = expiresAt - now;
    if (diff <= 0) {
        countdownElement.textContent = 'Expired';
        return;
    }
    const days = Math.floor(diff / (1000 * 60 * 60 * 24));
    const hours = Math.floor((diff / (1000 * 60 * 60)) % 24);
    const minutes = Math.floor((diff / (1000 * 60)) % 60);
    const seconds = Math.floor((diff / 1000) % 60);
    countdownElement.textContent = `${days}d ${hours}h ${minutes}m ${seconds}s`;
}
updateCountdown();
setInterval(updateCountdown, 1000);
</script>
<?php render_shell_end();