wordpress-theme-aksrt/inc/classes/user/class-aksrt-user-badges-admin.php

<?php
/**
 * Admin grant/revoke badges on WP user profile screens.
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

class AKSRT_User_Badges_Admin {

	private static $instance = null;

	private function __construct() {}

	public static function get_instance(): self {
		if (null === self::$instance) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	public function init(): void {
		if (!is_admin()) {
			return;
		}
		add_action('show_user_profile', [$this, 'render_section']);
		add_action('edit_user_profile', [$this, 'render_section']);
		add_action('personal_options_update', [$this, 'handle_update']);
		add_action('edit_user_profile_update', [$this, 'handle_update']);
	}

	private function can_manage(): bool {
		return class_exists('AKSRT_User_Badges') && AKSRT_User_Badges::can_manually_set(get_current_user_id());
	}

	public function render_section(WP_User $user): void {
		if (!class_exists('AKSRT_User_Badges') || !AKSRT_User_Badges::enabled()) {
			return;
		}
		$dict  = AKSRT_User_Badges::get_dictionary();
		if (!$dict) {
			return;
		}
		$owned = AKSRT_User_Badges::get_owned((int) $user->ID);
		$wear  = AKSRT_User_Badges::get_wear((int) $user->ID);
		$can   = $this->can_manage();
		?>
		<a id="aksrt-user-badges"></a>
		<h2><?php esc_html_e('AKSRT 徽章', 'aksrt'); ?></h2>
		<table class="form-table" role="presentation">
			<tr>
				<th><label><?php esc_html_e('已授予徽章', 'aksrt'); ?></label></th>
				<td>
					<?php if (!$can) : ?>
						<p class="description"><?php esc_html_e('当前账号无权授予/收回徽章。', 'aksrt'); ?></p>
					<?php endif; ?>
					<fieldset <?php disabled(!$can); ?>>
						<?php foreach ($dict as $item) : ?>
							<?php
							$slug = $item['slug'];
							$checked = in_array($slug, $owned, true);
							?>
							<label style="display:inline-flex;align-items:center;gap:6px;margin:0 16px 10px 0;">
								<input type="checkbox" name="aksrt_user_badges[]" value="<?php echo esc_attr($slug); ?>" <?php checked($checked); ?> <?php disabled(!$can); ?>>
								<?php if (!empty($item['icon_url'])) : ?>
									<img src="<?php echo esc_url($item['icon_url']); ?>" alt="" width="18" height="18" style="object-fit:contain;vertical-align:middle;">
								<?php endif; ?>
								<span><?php echo esc_html($item['label']); ?> <code><?php echo esc_html($slug); ?></code></span>
							</label>
						<?php endforeach; ?>
					</fieldset>
					<p class="description"><?php esc_html_e('勾选即授予；取消勾选并保存即收回。', 'aksrt'); ?></p>
				</td>
			</tr>
			<tr>
				<th><label for="aksrt_wear_badge"><?php esc_html_e('当前佩戴', 'aksrt'); ?></label></th>
				<td>
					<select name="aksrt_wear_badge" id="aksrt_wear_badge" <?php disabled(!$can); ?>>
						<option value=""><?php esc_html_e('（未佩戴）', 'aksrt'); ?></option>
						<?php foreach ($dict as $item) : ?>
							<?php if (!in_array($item['slug'], $owned, true) && $item['slug'] !== $wear) : ?>
								<?php continue; ?>
							<?php endif; ?>
							<option value="<?php echo esc_attr($item['slug']); ?>" <?php selected($wear, $item['slug']); ?>>
								<?php echo esc_html($item['label']); ?>
							</option>
						<?php endforeach; ?>
					</select>
					<p class="description"><?php esc_html_e('仅可佩戴已授予徽章；用户也可在前台自行佩戴。', 'aksrt'); ?></p>
				</td>
			</tr>
		</table>
		<?php
		wp_nonce_field('aksrt_user_badges_admin', 'aksrt_user_badges_nonce');
	}

	public function handle_update(int $user_id): void {
		if (!$this->can_manage()) {
			return;
		}
		if (!isset($_POST['aksrt_user_badges_nonce']) || !wp_verify_nonce(sanitize_text_field(wp_unslash((string) $_POST['aksrt_user_badges_nonce'])), 'aksrt_user_badges_admin')) {
			return;
		}
		if (!class_exists('AKSRT_User_Badges') || !AKSRT_User_Badges::enabled()) {
			return;
		}
		$raw = isset($_POST['aksrt_user_badges']) ? (array) wp_unslash($_POST['aksrt_user_badges']) : [];
		$slugs = array_map('sanitize_key', $raw);
		AKSRT_User_Badges::set_owned($user_id, $slugs);

		$wear = isset($_POST['aksrt_wear_badge']) ? sanitize_key((string) wp_unslash($_POST['aksrt_wear_badge'])) : '';
		if ($wear === '') {
			delete_user_meta($user_id, AKSRT_User_Badges::META_WEAR);
		} else {
			$res = AKSRT_User_Badges::wear($user_id, $wear);
			if (is_wp_error($res)) {
				// leave owned as-is; wear ignored if invalid
				delete_user_meta($user_id, AKSRT_User_Badges::META_WEAR);
			}
		}
	}
}