<?php
/**
 * Public user-home template context builder.
 *
 * Keeps page-user-home.php as a thin shell that only mounts parts.
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

if (!function_exists('aksrt_get_user_home_page_context')) {
	/**
	 * Build the render context for the public user homepage shell.
	 *
	 * @param WP_User $user Target user.
	 * @return array<string, mixed>
	 */
	function aksrt_get_user_home_page_context(WP_User $user): array {
		$user_id = (int) $user->ID;

		$dashboard = function_exists('aksrt_get_user_dashboard_view')
			? aksrt_get_user_dashboard_view($user_id, ['viewer_id' => get_current_user_id()])
			: [];

		$is_own_profile = !empty($dashboard['is_own_profile']);
		$user_home_settings = class_exists('\AKSRT\Settings\Settings')
			? \AKSRT\Settings\Settings::get_user_home_settings()
			: [
				'tabs'           => ['posts', 'favorites', 'comments', 'follow'],
				'sidebar'        => false,
				'cover'          => true,
				'follow'         => true,
				'posts_per_page' => 10,
			];

		$user_center_settings = class_exists('\AKSRT\Settings\Settings')
			? \AKSRT\Settings\Settings::get_user_center_settings()
			: ['social_links' => true];

		$post_count        = (int) ($dashboard['post_count'] ?? 0);
		$comment_count     = (int) ($dashboard['comment_count'] ?? 0);
		$favorite_post_ids = $dashboard['favorite_post_ids'] ?? [];
		$favorite_count    = (int) ($dashboard['favorite_count'] ?? 0);
		$user_contacts     = $dashboard['user_contacts'] ?? [];
		$per_page          = max(1, (int) ($user_home_settings['posts_per_page'] ?? 10));
		$credits_enabled   = !empty($dashboard['credits_enabled']);
		$credit_balance    = $dashboard['credit_balance'] ?? 0.0;
		$currency_name     = $dashboard['currency_name'] ?? __('积分', 'aksrt');

		$user_home_manager = class_exists('\AKSRT\User\Home') ? \AKSRT\User\Home::get_instance() : null;
		$visible_tabs = $user_home_manager ? $user_home_manager->get_visible_tabs($is_own_profile) : [];

		$enabled_tabs = array_keys($visible_tabs);
		if (empty($enabled_tabs)) {
			$enabled_tabs = ['posts', 'comments', 'favorites'];
		}

		// Apply admin-configured display order.
		$order = $user_home_settings['tabs_order'] ?? [];
		$ordered = [];
		foreach ((array) $order as $tab_key) {
			if (in_array($tab_key, $enabled_tabs, true)) {
				$ordered[] = $tab_key;
			}
		}
		foreach ($enabled_tabs as $tab_key) {
			if (!in_array($tab_key, $ordered, true)) {
				$ordered[] = $tab_key;
			}
		}
		$enabled_tabs = $ordered;

		$pc_hide     = $user_home_settings['tabs_pc_hide'] ?? [];
		$mobile_hide = $user_home_settings['tabs_mobile_hide'] ?? [];
		$enabled_tabs_pc = array_values(array_diff($enabled_tabs, (array) $pc_hide));
		$enabled_tabs_mobile = array_values(array_diff($enabled_tabs, (array) $mobile_hide));
		$is_mobile = function_exists('wp_is_mobile') && wp_is_mobile();
		$display_tabs = $is_mobile ? $enabled_tabs_mobile : $enabled_tabs_pc;
		$default_tab = !empty($display_tabs) ? $display_tabs[0] : $enabled_tabs[0];

		$forum_instance = class_exists('\AKSRT\Forum\Forum') ? \AKSRT\Forum\Forum::get_instance() : null;
		$forum_stats = $forum_instance ? $forum_instance->get_user_forum_stats($user_id) : [];
		$forum_topic_count = (int) ($forum_stats['topic_count'] ?? 0);
		$product_count = 0;
		if (class_exists('\AKSRT\Shop\Shop')) {
			$product_count = (int) \AKSRT\Shop\Shop::get_instance()->count_author_products($user_id);
		}

		$follow_count = 0;
		if (class_exists('\AKSRT\User\Follow')) {
			$follow_count = (int) \AKSRT\User\Follow::get_instance()->get_follower_count($user_id);
		}

		$plate_count = 0;
		if ($forum_instance) {
			$seen_plates = [];
			if (method_exists($forum_instance, 'get_user_followed_plates')) {
				foreach ((array) $forum_instance->get_user_followed_plates($user_id) as $plate) {
					$pid = (int) ($plate['id'] ?? 0);
					if ($pid > 0) {
						$seen_plates[$pid] = true;
					}
				}
			}
			if (method_exists($forum_instance, 'get_user_managed_plates')) {
				$managed = (array) $forum_instance->get_user_managed_plates($user_id);
				foreach (['owned', 'moderating'] as $bucket) {
					foreach ((array) ($managed[$bucket] ?? []) as $plate) {
						$pid = (int) ($plate['id'] ?? 0);
						if ($pid > 0) {
							$seen_plates[$pid] = true;
						}
					}
				}
			}
			$plate_count = count($seen_plates);
		}

		$tab_counts = [
			'posts'     => $post_count,
			'comments'  => $comment_count,
			'favorites' => $favorite_count,
			'credits'   => $credits_enabled && $is_own_profile ? (int) round((float) $credit_balance) : 0,
			'product'   => $product_count,
			'plate'     => $plate_count,
			'forum'     => $forum_topic_count,
			'follow'    => $follow_count,
		];

		$tab_labels = [
			'posts'     => __('文章', 'aksrt'),
			'comments'  => __('评论', 'aksrt'),
			'favorites' => __('收藏', 'aksrt'),
			'credits'   => sprintf(__('我的%s', 'aksrt'), $currency_name),
			'product'   => __('商品', 'aksrt'),
			'plate'     => __('圈子', 'aksrt'),
			'forum'     => __('论坛', 'aksrt'),
			'follow'    => __('粉丝', 'aksrt'), // Zibll: 粉丝
		];
		foreach ($visible_tabs as $tab_key => $tab_config) {
			if (!empty($tab_config['label'])) {
				$tab_labels[$tab_key] = (string) $tab_config['label'];
			}
		}

		$active_tab = isset($_GET['tab']) ? sanitize_key(wp_unslash($_GET['tab'])) : $default_tab;
		if (!in_array($active_tab, $enabled_tabs, true)) {
			$active_tab = $default_tab;
		}

		$home_url = function_exists('aksrt_get_user_home_url') ? aksrt_get_user_home_url($user) : home_url('/');

		return [
			'user'                 => $user,
			'user_id'              => $user_id,
			'dashboard'            => $dashboard,
			'is_own_profile'       => $is_own_profile,
			'user_home_settings'   => $user_home_settings,
			'user_center_settings' => $user_center_settings,
			'user_contacts'        => $user_contacts,
			'post_count'           => $post_count,
			'comment_count'        => $comment_count,
			'favorite_post_ids'    => $favorite_post_ids,
			'favorite_count'       => $favorite_count,
			'per_page'             => $per_page,
			'credits_enabled'      => $credits_enabled,
			'credit_balance'       => $credit_balance,
			'currency_name'        => $currency_name,
			'enabled_tabs'         => $enabled_tabs,
			'tabs_pc_hide'         => (array) $pc_hide,
			'tabs_mobile_hide'     => (array) $mobile_hide,
			'default_tab'          => $default_tab,
			'active_tab'           => $active_tab,
			'tab_counts'           => $tab_counts,
			'tab_labels'           => $tab_labels,
			'forum_instance'       => $forum_instance,
			'forum_stats'          => $forum_stats,
			'forum_topic_count'    => $forum_topic_count,
			'home_url'             => $home_url,
			'posts_page'           => max(1, isset($_GET['posts_page']) ? (int) $_GET['posts_page'] : 1),
			'comments_page'        => max(1, isset($_GET['comments_page']) ? (int) $_GET['comments_page'] : 1),
			'favorites_page'       => max(1, isset($_GET['favorites_page']) ? (int) $_GET['favorites_page'] : 1),
			'svg_empty_post'       => '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/><path d="M14 2v6h6"/><path d="M9 13h6M9 17h6M9 9h1"/></svg>',
			'svg_empty_comment'    => '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"/></svg>',
			'svg_empty_favorite'   => '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2"/></svg>',
		];
	}
}