/**
 * ============================================================
 * SYMBOLIC CACHE PURGE CONSOLE — FULL DASHBOARD WIDGET
 * ============================================================
 */

add_action('wp_dashboard_setup', function () {
    wp_add_dashboard_widget(
        'symbolic_thumbnail_dashboard_widget',
        '🌈 Thumbnail Overlay + Symbolic Purge',
        'symbolic_render_thumbnail_dashboard_widget'
    );
});

/**
 * ------------------------------------------------------------
 * WIDGET RENDERER
 * ------------------------------------------------------------
 */
function symbolic_render_thumbnail_dashboard_widget() {

    // Run scan
    $scan = symbolic_scan_uploads();

    echo "<div id='symbolic-purge-console' style='padding:1em;'>";

    echo "<h3>🌈 Symbolic Thumbnail Overlay + Purge Console</h3>";

    // Action buttons
    echo "<div style='margin:1em 0;'>";
    echo "<a href='" . admin_url('admin-post.php?action=symbolic_scan') . "' class='button button-primary'>🔍 Run Scan</a> ";
echo "<a href='" . admin_url('admin-post.php?action=symbolic_dryrun') . "' class='button'>🧪 Dry‑Run Purge</a> ";
echo "<a href='" . admin_url('admin-post.php?action=symbolic_purge') . "' class='button button-danger' style='background:#c62828;color:#fff;'>🧹 Live Purge</a>";
    echo "</div>";

    // Entropy summary
    echo "<h4>Entropy Summary</h4>";
    foreach ($scan['summary'] as $glyph => $count) {
        $class = symbolic_entropy_class($glyph);
        echo "<p><strong>{$glyph}</strong> → 
              <span class='entropy-badge {$class}'>{$count}</span> flagged</p>";
    }

    // Regrowth list
    echo "<h4>🌿 Regrowth Candidates (" . count($scan['regrowth']) . ")</h4>";
    if (!empty($scan['regrowth'])) {
        echo "<ul style='max-height:200px;overflow:auto;'>";
        foreach ($scan['regrowth'] as $item) {
            $class = symbolic_entropy_class($item['entropy']);
            echo "<li class='{$class}'>{$item['entropy']} {$item['path']}</li>";
        }
        echo "</ul>";
    } else {
        echo "<p>None eligible yet.</p>";
    }

    // Timestamp
    $stamp = symbolic_timestamp();
    echo "<p style='margin-top:1em;color:#666;'>
            <em>Last scan: {$stamp['local']} ({$stamp['relative']})</em>
          </p>";

    echo "</div>";

    // Inline JS
    echo symbolic_
    
    _js();

    // Inline CSS
    echo symbolic_widget_css();
}

/**
 * ------------------------------------------------------------
 * SCANNER
 * ------------------------------------------------------------
 */
function symbolic_scan_uploads() {

    $baseUploads  = WP_CONTENT_DIR . '/uploads';
    $startYear    = 2016;
    $endYear      = (int) date('Y');

    $summary      = ['🌱'=>0,'🍂'=>0,'🪦'=>0];
    $regrowthList = [];

    for ($year = $startYear; $year <= $endYear; $year++) {
        for ($month = 1; $month <= 12; $month++) {

            $folder = sprintf('%s/%d/%02d', $baseUploads, $year, $month);
            if (!is_dir($folder)) continue;

            $files = glob($folder . '/*.{jpg,jpeg,png,avif,webp}', GLOB_BRACE);
            if (empty($files)) continue;

            foreach ($files as $path) {
                $mtime    = filemtime($path);
                $entropy  = symbolic_entropy_glyph($mtime);
                $eligible = symbolic_regrowth_flag($mtime);

                $summary[$entropy]++;

                if ($eligible === '🌿 regrowth') {
                    $regrowthList[] = [
                        'path'    => "{$year}/{$month}/" . basename($path),
                        'entropy' => $entropy
                    ];
                }
            }
        }
    }

    return [
        'summary'  => $summary,
        'regrowth' => $regrowthList
    ];
}

/**
 * ------------------------------------------------------------
 * ENTROPY GLYPH LOGIC
 * ------------------------------------------------------------
 */
function symbolic_entropy_glyph($mtime) {
    $age = time() - $mtime;

    if ($age < 90 * 86400) return '🌱';      // < 3 months
    if ($age < 365 * 86400) return '🍂';     // < 1 year
    return '🪦';                              // older
}

function symbolic_entropy_class($glyph) {
    return [
        '🌱' => 'fresh',
        '🍂' => 'stale',
        '🪦' => 'retired'
    ][$glyph] ?? '';
}

/**
 * ------------------------------------------------------------
 * REGROWTH FLAG
 * ------------------------------------------------------------
 */
function symbolic_regrowth_flag($mtime) {
    $age = time() - $mtime;
    return ($age > 365 * 86400) ? '🌿 regrowth' : 'no';
}

/**
 * ------------------------------------------------------------
 * TIMESTAMP HELPER
 * ------------------------------------------------------------
 */
function symbolic_timestamp() {
    $local = date('Y-m-d H:i:s');
    $relative = human_time_diff(time(), time());
    return [
        'local'    => $local,
        'relative' => $relative . ' ago'
    ];
}

/**
 * ------------------------------------------------------------
 * INLINE JS
 * ------------------------------------------------------------
 */
function symbolic_widget_js() {
    return "
    <script>
    document.addEventListener('DOMContentLoaded', () => {
        console.log('Symbolic purge console loaded.');
    });
    </script>
    ";
}

/**
 * ------------------------------------------------------------
 * INLINE CSS
 * ------------------------------------------------------------
 */
function symbolic_widget_css() {
    return "
    <style>
    #symbolic-purge-console .entropy-badge {
        display:inline-block;
        padding:0.2em 0.6em;
        border-radius:12px;
        font-weight:bold;
        color:#fff;
    }
    .entropy-badge.fresh   { background:#4caf50; }
    .entropy-badge.stale   { background:#ff9800; }
    .entropy-badge.retired { background:#9e9e9e; }
    </style>
    ";
}

add_action('admin_post_symbolic_scan', 'symbolic_handle_scan');
add_action('admin_post_symbolic_dryrun', 'symbolic_handle_dryrun');
add_action('admin_post_symbolic_purge', 'symbolic_handle_purge');






    $scan = symbolic_scan_uploads();
    $regrowth = $scan['regrowth'];

    $deleted = 0;
    $log = "=== LIVE PURGE ===\n";
    $log .= "Timestamp: " . date('Y-m-d H:i:s') . "\n";

    foreach ($regrowth as $item) {

        $full = WP_CONTENT_DIR . '/uploads/' . $item['path'];

        if (file_exists($full)) {
            if (unlink($full)) {
                $deleted++;
                $log .= "[OK] Deleted: {$item['path']}\n";
            } else {
                $log .= "[ERR] Failed: {$item['path']}\n";
            }
        } else {
            $log .= "[MISS] Not found: {$item['path']}\n";
        }
    }

    $log .= "\nTotal deleted: {$deleted}\n";

    symbolic_write_ledger($log);

    wp_redirect(admin_url('index.php?symbolic=purge-complete'));
    exit;
}

/**
 * ------------------------------------------------------------
 * ADMIN ACTION HANDLERS
 * ------------------------------------------------------------
 */

add_action('admin_post_symbolic_scan', 'symbolic_handle_scan');
add_action('admin_post_symbolic_dryrun', 'symbolic_handle_dryrun');
add_action('admin_post_symbolic_purge', 'symbolic_handle_purge');

/**
 * SCAN HANDLER
 */
function symbolic_handle_scan() {
    symbolic_write_ledger("=== SCAN RUN ===\nTimestamp: " . date('Y-m-d H:i:s'));
    wp_redirect(admin_url('index.php?symbolic=scan-complete'));
    exit;
}

/**
 * DRY‑RUN HANDLER
 */
function symbolic_handle_dryrun() {

    $scan = symbolic_scan_uploads();
    $regrowth = $scan['regrowth'];

    $log  = "=== DRY RUN ===\n";
    $log .= "Timestamp: " . date('Y-m-d H:i:s') . "\n";
    $log .= "Would delete: " . count($regrowth) . " files\n\n";

    foreach ($regrowth as $item) {
        $log .= "[DRY] {$item['path']}\n";
    }

    symbolic_write_ledger($log);

    wp_redirect(admin_url('index.php?symbolic=dryrun-complete'));
    exit;
}

/**
 * LIVE PURGE HANDLER
 */
function symbolic_handle_purge() {

    $scan = symbolic_scan_uploads();
    $regrowth = $scan['regrowth'];

    $deleted = 0;
    $log  = "=== LIVE PURGE ===\n";
    $log .= "Timestamp: " . date('Y-m-d H:i:s') . "\n";

    foreach ($regrowth as $item) {

        $full = WP_CONTENT_DIR . '/uploads/' . $item['path'];

        if (file_exists($full)) {
            if (unlink($full)) {
                $deleted++;
                $log .= "[OK] Deleted: {$item['path']}\n";
            } else {
                $log .= "[ERR] Failed: {$item['path']}\n";
            }
        } else {
            $log .= "[MISS] Not found: {$item['path']}\n";
        }
    }

    $log .= "\nTotal deleted: {$deleted}\n";

    symbolic_write_ledger($log);

    wp_redirect(admin_url('index.php?symbolic=purge-complete'));
    exit;
}

/**
 * LEDGER WRITER
 */
function symbolic_write_ledger($text) {
    $ledger = WP_CONTENT_DIR . '/uploads/symbolic-ledger.log';
    file_put_contents($ledger, $text . "\n\n", FILE_APPEND);
}


function symbolic_handle_purge() {

    $scan = symbolic_scan_uploads();
    $regrowth = $scan['regrowth'];

    $deleted = 0;
    $log = "=== LIVE PURGE ===\n";
    $log .= "Timestamp: " . date('Y-m-d H:i:s') . "\n";

    foreach ($regrowth as $item) {

        $full = WP_CONTENT_DIR . '/uploads/' . $item['path'];

        if (file_exists($full)) {
            if (unlink($full)) {
                $deleted++;
                $log .= "[OK] Deleted: {$item['path']}\n";
            } else {
                $log .= "[ERR] Failed: {$item['path']}\n";
            }
        } else {
            $log .= "[MISS] Not found: {$item['path']}\n";
        }
    }

    $log .= "\nTotal deleted: {$deleted}\n";

    symbolic_write_ledger($log);

    wp_redirect(admin_url('index.php?symbolic=purge-complete'));
    exit;
}

function symbolic_write_ledger($text) {
    $ledger = WP_CONTENT_DIR . '/uploads/symbolic-ledger.log';
    file_put_contents($ledger, $text . "\n\n", FILE_APPEND);
}