<?php

/**
 * Find all translation strings in PHP and Blade files that are not in en.json
 */

echo "=== COMPREHENSIVE TRANSLATION STRING SCANNER ===\n\n";

// Load current en.json
$enFile = 'resources/lang/en.json';
$existing = json_decode(file_get_contents($enFile), true);
echo "Current en.json has " . count($existing) . " keys\n\n";

// Find all PHP and Blade files
$files = [];
$directories = ['app', 'resources/views'];

foreach ($directories as $dir) {
    if (!is_dir($dir)) continue;

    $iterator = new RecursiveIteratorIterator(
        new RecursiveDirectoryIterator($dir)
    );

    foreach ($iterator as $file) {
        if ($file->isFile()) {
            $ext = $file->getExtension();
            if ($ext === 'php' || $ext === 'blade') {
                $files[] = $file->getPathname();
            }
        }
    }
}

echo "Scanning " . count($files) . " files (PHP + Blade)...\n\n";

// Find all translation calls
$foundStrings = [];
$patterns = [
    '/__\(\s*[\'"]([^\'"]+)[\'"]\s*\)/',                    // __('string')
    '/__\(\s*"([^"]+)"\s*\)/',                              // __("string")
    '/trans\(\s*[\'"]([^\'"]+)[\'"]\s*\)/',                 // trans('string')
    '/@lang\(\s*[\'"]([^\'"]+)[\'"]\s*\)/',                 // @lang('string')
    '/\{\{\s*__\(\s*[\'"]([^\'"]+)[\'"]\s*\)\s*\}\}/',      // {{ __('string') }}
    '/\{\{\s*trans\(\s*[\'"]([^\'"]+)[\'"]\s*\)\s*\}\}/',   // {{ trans('string') }}
];

$totalFound = 0;
foreach ($files as $file) {
    $content = file_get_contents($file);
    $relativePath = str_replace(getcwd() . '/', '', $file);

    foreach ($patterns as $pattern) {
        if (preg_match_all($pattern, $content, $matches)) {
            foreach ($matches[1] as $string) {
                // Skip if it's a variable or complex expression
                if (strpos($string, '$') !== false) continue;
                if (strpos($string, '{') !== false) continue;
                if (strpos($string, '.') === 0) continue;
                if (empty(trim($string))) continue;

                $totalFound++;

                if (!isset($foundStrings[$string])) {
                    $foundStrings[$string] = [
                        'string' => $string,
                        'files' => []
                    ];
                }

                $foundStrings[$string]['files'][] = $relativePath;
            }
        }
    }
}

echo "Found " . $totalFound . " translation calls\n";
echo "Found " . count($foundStrings) . " unique translation strings\n\n";

// Find missing strings
$missing = [];
foreach ($foundStrings as $string => $info) {
    if (!isset($existing[$string])) {
        $missing[$string] = $info;
    }
}

echo "Missing from en.json: " . count($missing) . " strings\n";
echo str_repeat('=', 100) . "\n\n";

if (count($missing) > 0) {
    echo "Missing translation strings:\n";
    echo str_repeat('-', 100) . "\n";

    // Group by first occurrence file
    foreach ($missing as $string => $info) {
        $firstFile = $info['files'][0];
        $fileCount = count($info['files']);
        $fileInfo = $fileCount > 1 ? " (used in $fileCount files)" : "";

        echo sprintf("%-60s  %s%s\n",
            substr($string, 0, 60),
            basename($firstFile),
            $fileInfo
        );
    }

    echo "\n" . str_repeat('=', 100) . "\n\n";

    // Automatically add them
    echo "Adding " . count($missing) . " new keys to en.json...\n";

    // Add missing strings to en.json
    foreach ($missing as $string => $info) {
        $existing[$string] = $string; // Use the string itself as the value
    }

    // Sort alphabetically
    ksort($existing);

    // Backup first
    copy($enFile, $enFile . '.backup');

    // Save to file
    file_put_contents(
        $enFile,
        json_encode($existing, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . PHP_EOL
    );

    echo "\n✓ Added " . count($missing) . " new keys to en.json\n";
    echo "✓ Backup created: en.json.backup\n";
    echo "✓ Total keys in en.json: " . count($existing) . "\n\n";

    // Save detailed report
    $report = "Missing translation strings found:\n\n";
    foreach ($missing as $string => $info) {
        $report .= "Key: $string\n";
        $report .= "Used in:\n";
        foreach ($info['files'] as $file) {
            $report .= "  - $file\n";
        }
        $report .= "\n";
    }
    file_put_contents('/tmp/missing-translations-report.txt', $report);

    echo "Detailed report saved to: /tmp/missing-translations-report.txt\n\n";
    echo "Next steps:\n";
    echo "1. Review the new keys in en.json and edit values if needed\n";
    echo "2. Run: ./translate-new-keys.sh\n";
    echo "3. Clear cache: php artisan config:clear && php artisan cache:clear\n";
} else {
    echo "✓ All translation strings are already in en.json!\n";
    echo "\nSummary:\n";
    echo "  - Scanned " . count($files) . " files\n";
    echo "  - Found " . $totalFound . " translation calls\n";
    echo "  - All " . count($foundStrings) . " unique strings are in en.json\n";
}