<?php
/** Pixlio – Image Editor settings and bundled interface translations. GPL-2.0-or-later. */
if (!defined('ABSPATH')) { exit; }
function pixlio_image_editor_options() {
    $saved = get_option('pixlio_image_editor_options', null);
    // Retain settings from the pre-release Image Studio installation.
    if (null === $saved) { $saved = get_option('image_studio_options', array()); }
    return wp_parse_args(is_array($saved) ? $saved : array(), array('language'=>'auto', 'format'=>'image/png', 'quality'=>92, 'theme'=>'light'));
}
function pixlio_image_editor_language() {
    $options = pixlio_image_editor_options();
    $locale = $options['language'] === 'auto' ? get_locale() : $options['language'];
    $code = strtolower(substr((string)$locale, 0, 2));
    return in_array($code, array('en','ja','zh','ko','es'), true) ? $code : 'en';
}
function pixlio_image_editor_strings($language = null) {
    static $cache = array();
    $options = pixlio_image_editor_options();
    $locales = array('en'=>'en_US', 'ja'=>'ja', 'zh'=>'zh_CN', 'ko'=>'ko_KR', 'es'=>'es_ES');
    $code = $language ?: pixlio_image_editor_language();
    if (!isset($locales[$code])) { $code = 'en'; }
    $locale = null === $language && $options['language'] === 'auto' ? get_locale() : $locales[$code];
    $key = $code . ':' . $locale;
    if (isset($cache[$key])) { return $cache[$key]; }
    $english = json_decode(file_get_contents(__DIR__ . '/languages/en.json'), true);
    $bundled = json_decode(file_get_contents(__DIR__ . '/languages/' . $code . '.json'), true);
    $strings = array_replace_recursive(is_array($english) ? $english : array(), is_array($bundled) ? $bundled : array());
    // Preserve bundled language choices when that WordPress locale is not installed.
    $switched = false;
    if (determine_locale() !== $locale) { $switched = switch_to_locale($locale); }
    try {
        if ($switched || determine_locale() === $locale) {
            $translated = pixlio_image_editor_gettext_strings();
            foreach ($translated as $name => $value) {
                if (is_array($value)) {
                    foreach ($value as $message => $text) {
                        if ($text !== $english[$name][$message]) { $strings[$name][$message] = $text; }
                    }
                } elseif ($value !== $english[$name]) { $strings[$name] = $value; }
            }
        }
    } finally {
        if ($switched) { restore_previous_locale(); }
    }
    $cache[$key] = $strings;
    return $strings;
}
function pixlio_image_editor_label($key) {
    $strings = pixlio_image_editor_strings();
    $english = pixlio_image_editor_strings('en');
    return $strings[$key] ?? $english[$key] ?? $key;
}
function pixlio_image_editor_sanitize_options($value) {
    $old = pixlio_image_editor_options();
    if (!is_array($value)) { return $old; }
    $result = $old;
    $allowed = array('language'=>array('auto','ja','en','zh','ko','es'), 'format'=>array('image/png','image/jpeg'), 'theme'=>array('light','dark','system'));
    foreach ($allowed as $key=>$choices) {
        if (isset($value[$key]) && is_string($value[$key]) && in_array($value[$key], $choices, true)) { $result[$key] = $value[$key]; }
    }
    if (isset($value['quality']) && is_scalar($value['quality']) && is_numeric($value['quality'])) { $result['quality'] = max(20, min(100, (int)$value['quality'])); }
    return $result;
}
add_action('admin_init', function () {
    register_setting('pixlio_image_editor_settings', 'pixlio_image_editor_options', array('type'=>'array', 'sanitize_callback'=>'pixlio_image_editor_sanitize_options', 'show_in_rest'=>false));
});
add_action('admin_menu', function () {
    add_submenu_page('pixlio-image-editor', 'Pixlio – Image Editor — ' . pixlio_image_editor_label('settings'), pixlio_image_editor_label('settings'), 'manage_options', 'pixlio-image-editor-settings', 'pixlio_image_editor_settings_page');
}, 20);
add_filter('plugin_action_links_' . plugin_basename(__DIR__ . '/pixlio-image-editor.php'), function ($links) {
    if (current_user_can('manage_options')) {
        array_unshift($links, '<a href="' . esc_url(admin_url('admin.php?page=pixlio-image-editor-settings')) . '">' . esc_html(pixlio_image_editor_label('settings')) . '</a>');
    }
    $links['creator_support'] = '<a href="' . esc_url('https://www.patreon.com/cw/IkedaJapanDev') . '" target="_blank" rel="noopener noreferrer">Creator Support</a>';
    return $links;
});
function pixlio_image_editor_settings_select($key, $label, $choices, $description = '') {
    $options = pixlio_image_editor_options();
    echo '<tr><th scope="row"><label for="pixlio-image-editor-' . esc_attr($key) . '">' . esc_html(pixlio_image_editor_label($label)) . '</label></th><td><select id="pixlio-image-editor-' . esc_attr($key) . '" name="pixlio_image_editor_options[' . esc_attr($key) . ']">';
    foreach ($choices as $value=>$text) {
        echo '<option value="' . esc_attr($value) . '" ' . selected($options[$key], $value, false) . '>' . esc_html($text) . '</option>';
    }
    echo '</select>';
    if ($description) { echo '<p class="description">' . esc_html(pixlio_image_editor_label($description)) . '</p>'; }
    echo '</td></tr>';
}
function pixlio_image_editor_settings_page() {
    if (!current_user_can('manage_options')) { return; }
    $options = pixlio_image_editor_options();
    echo '<div class="wrap"><h1>Pixlio – Image Editor — ' . esc_html(pixlio_image_editor_label('settings')) . '</h1>';
    // Read-only notice flag: options.php verifies the Settings API nonce before saving.
    // phpcs:ignore WordPress.Security.NonceVerification.Recommended
    if (isset($_GET['settings-updated'])) { echo '<div class="notice notice-success is-dismissible"><p>' . esc_html(pixlio_image_editor_label('settingsSaved')) . '</p></div>'; }
    settings_errors('pixlio_image_editor_options');
    echo '<p>' . esc_html(pixlio_image_editor_label('settingsHint')) . '</p><form method="post" action="options.php">';
    settings_fields('pixlio_image_editor_settings');
    echo '<table class="form-table" role="presentation">';
    pixlio_image_editor_settings_select('language','language',array('auto'=>pixlio_image_editor_label('auto'),'ja'=>'日本語','en'=>'English','zh'=>'简体中文','ko'=>'한국어','es'=>'Español'),'languageHint');
    pixlio_image_editor_settings_select('format','defaultFormat',array('image/png'=>'PNG','image/jpeg'=>'JPEG'));
    echo '<tr><th scope="row"><label for="pixlio-image-editor-quality">' . esc_html(pixlio_image_editor_label('quality')) . '</label></th><td><input id="pixlio-image-editor-quality" name="pixlio_image_editor_options[quality]" type="number" min="20" max="100" step="1" value="' . esc_attr($options['quality']) . '"><p class="description">' . esc_html(pixlio_image_editor_label('qualityHint')) . '</p></td></tr>';
    pixlio_image_editor_settings_select('theme','defaultTheme',array('light'=>pixlio_image_editor_label('light'),'dark'=>pixlio_image_editor_label('dark'),'system'=>pixlio_image_editor_label('system')));
    echo '</table>';
    submit_button(pixlio_image_editor_label('saveSettings'));
    echo '</form></div>';
}