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File name : manifest.php

Content :

<?php
require 'db_config.php';

header('Content-Type: application/json');

// --- Helper Function to Convert HSL to HEX ---
function hslToHex($hsl_string) {
    if (empty($hsl_string)) return '#6d28d9'; // Default fallback color

// Parse the HSL string (e.g., "262 83% 57%")
    list($h, $s, $l) = sscanf($hsl_string, "%d %d%% %d%%");
    
    $s /= 100;
    $l /= 100;
    $c = (1 - abs(2 * $l - 1)) * $s;
    $x = $c * (1 - abs(fmod($h / 60, 2) - 1));
    $m = $l - $c / 2;
    $r = $g = $b = 0;

if (0 <= $h && $h < 60) { $r = $c; $g = $x; $b = 0; } 
    elseif (60 <= $h && $h < 120) { $r = $x; $g = $c; $b = 0; } 
    elseif (120 <= $h && $h < 180) { $r = 0; $g = $c; $b = $x; } 
    elseif (180 <= $h && $h < 240) { $r = 0; $g = $x; $b = $c; } 
    elseif (240 <= $h && $h < 300) { $r = $x; $g = 0; $b = $c; } 
    elseif (300 <= $h && $h < 360) { $r = $c; $g = 0; $b = $x; }
    
    $r = round(($r + $m) * 255);
    $g = round(($g + $m) * 255);
    $b = round(($b + $m) * 255);

return sprintf("#%02x%02x%02x", $r, $g, $b);
}

// --- Default Manifest Values ---
$name = 'Omni Rewards';
$short_name = 'OmniRewards';
$theme_color = '#6d28d9';
$description = 'A loyalty rewards application.';
$icon_source_is_dynamic = false;
$icon_url = '';

// --- Fetch Settings from Database ---
try {
    $conn = new mysqli($servername, $username, $password, $dbname);
    if (!$conn->connect_error) {
        $result = $conn->query("SELECT businessName, logoUrl, primaryColor FROM business_settings LIMIT 1");
        if ($result && $result->num_rows > 0) {
            $settings = $result->fetch_assoc();
            
            // Override defaults with DB values if they exist
            $name = $settings['businessName'] ?: $name;
            $short_name = preg_replace('/\s+/', '', $name); 
            if (strlen($short_name) > 12) {
                $short_name = substr($short_name, 0, 12);
            }
            
            if (!empty($settings['logoUrl'])) {
                $protocol = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http");
                $host = $_SERVER['HTTP_HOST'];
                $base_path = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
                $icon_url = $protocol . "://" . $host . $base_path . "/" . $settings['logoUrl'];
                $icon_source_is_dynamic = true;
            }
            if (!empty($settings['primaryColor'])) {
                $theme_color = hslToHex($settings['primaryColor']);
            }
        }
        $conn->close();
    }
} catch (Exception $e) {
    // Silently fail if DB connection fails, defaults will be used.
    error_log("Manifest DB Error: " . $e->getMessage());
}

// --- Icon Generation ---
$icon_sizes = ['72x72', '96x96', '144x144', '192x192', '512x512'];
$icons = [];

foreach ($icon_sizes as $size) {
    $icons[] = [
        'src' => $icon_source_is_dynamic ? $icon_url : "icons/icon-{$size}.png",
        'sizes' => $size,
        'type' => 'image/png',
        'purpose' => 'any maskable'
    ];
}

// --- Build the Final Manifest Array ---
$manifest = [
    'name' => $name,
    'short_name' => $short_name,
    'start_url' => '.',
    'display' => 'standalone',
    'background_color' => '#f9fafb',
    'theme_color' => $theme_color,
    'description' => $description,
    'icons' => $icons,
    'orientation' => 'portrait-primary',
    'categories' => ['business', 'shopping', 'lifestyle'],
    'scope' => './',
    'id' => './?source=pwa',
    'dir' => 'ltr'
];

// --- Output the JSON ---
echo json_encode($manifest);
?>