<?php
// purpose: dynamic Web App Manifest for Sites A2H (PWA install) per domain/site
// author: MD Hub
// date: 2026-07-15

header('Content-Type: application/manifest+json; charset=utf-8');
header('Cache-Control: no-cache, no-store, must-revalidate');

session_start();
require_once __DIR__ . '/../functions/build_session.php';
require_once __DIR__ . '/../functions/sqlfunctions.php';
require_once __DIR__ . '/../functions/system.php';

$host = strtolower(trim((string)($_SERVER['HTTP_HOST'] ?? '')));
if ($host === 'localhost' || $host === '127.0.0.1') {
	$host = 'alphaqup.com';
}
$site_id = (int)($_GET['site_id'] ?? 0);
$name = 'MD Hub Site';
$short = 'Site';
$theme = '#4C1D95';
$bg = '#ffffff';
$icon = '';
$start = '/';
$a2h_on = false;

try {
	if ($site_id > 0) {
		$row = mysql_prepare_get(
			"SELECT site_id, site_name, site_color, colors, logo_url, a2h, wizard_data FROM site_data WHERE site_id=? LIMIT 1",
			'md_hub',
			[$site_id]
		);
	} else {
		$row = mysql_prepare_get(
			"SELECT S.site_id, S.site_name, S.site_color, S.colors, S.logo_url, S.a2h, S.wizard_data
			 FROM domains D INNER JOIN site_data S ON S.site_id=D.site_id
			 WHERE D.host=? ORDER BY D.domain_id ASC LIMIT 1",
			'md_hub',
			[$host]
		);
	}
	if (isset($row[0][0])) {
		$site_id = (int)$row[0][0];
		$name = trim((string)($row[0][1] ?? '')) ?: $name;
		$short = mb_strlen($name) > 12 ? (mb_substr($name, 0, 12)) : $name;
		$theme_raw = trim((string)($row[0][2] ?? '#4C1D95'));
		$colors_json = (string)($row[0][3] ?? '');
		$icon = trim((string)($row[0][4] ?? ''));
		$a2h_on = !empty($row[0][5]);
		$wiz = @json_decode((string)($row[0][6] ?? ''), true);
		if ($icon === '' && is_array($wiz) && !empty($wiz['logo_url'])) {
			$icon = trim((string)$wiz['logo_url']);
		}
		if ($colors_json !== '') {
			$dec = @json_decode($colors_json, true);
			if (is_array($dec) && !empty($dec[0])) {
				$theme_raw = (string)$dec[0];
			}
		}
		if (function_exists('sites_color_to_hex') && function_exists('sites_normalize_color')) {
			$theme = sites_color_to_hex(sites_normalize_color($theme_raw));
		} else {
			$theme = (strpos($theme_raw, '#') === 0) ? $theme_raw : '#4C1D95';
		}
	}
} catch (Throwable $e) {
	// defaults
}

// iOS Add to Home Screen needs a real PNG (not JPEG labeled .png, not SVG).
$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
$png = $scheme . '://' . $host . '/public/a2h-icon.php?site_id=' . (int)$site_id;
$icons = [
	['src' => $png . '&size=180', 'sizes' => '180x180', 'type' => 'image/png', 'purpose' => 'any'],
	['src' => $png . '&size=192', 'sizes' => '192x192', 'type' => 'image/png', 'purpose' => 'any'],
	['src' => $png . '&size=512', 'sizes' => '512x512', 'type' => 'image/png', 'purpose' => 'any'],
	['src' => $png . '&size=192', 'sizes' => '192x192', 'type' => 'image/png', 'purpose' => 'maskable'],
	['src' => $png . '&size=512', 'sizes' => '512x512', 'type' => 'image/png', 'purpose' => 'maskable'],
];

$manifest = [
	'id' => $site_id > 0 ? ('/?site=' . $site_id) : '/',
	'name' => $name,
	'short_name' => $short,
	'description' => $name . ' — install for quick access',
	'start_url' => '/',
	'scope' => '/',
	'display' => 'standalone',
	'orientation' => 'any',
	'background_color' => $bg,
	'theme_color' => $theme,
	'icons' => $icons,
	'categories' => ['business', 'productivity'],
	'prefer_related_applications' => false,
];

// Even if A2H flag is off, still return a valid manifest (install prompt only when flag on)
echo json_encode($manifest, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);