<?php
/**
 * Submit page context builder — shared by page-submit shell + partials.
 *
 * Expects no output. Returns $ctx array.
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

$front = class_exists('\AKSRT\Core\FrontSubmit') ? \AKSRT\Core\FrontSubmit::get_instance() : null;
$user_id = get_current_user_id();
$settings = $front ? $front->settings() : (class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_submit_settings() : []);
$enabled = !isset($settings['enabled']) || !empty($settings['enabled']);

$edit_id = isset($_GET['edit']) ? absint($_GET['edit']) : 0;
$edit_post = null;
if ($edit_id > 0 && $front) {
	if ($front->can_edit_post($edit_id, $user_id)) {
		$edit_post = get_post($edit_id);
		if (!$edit_post || $edit_post->post_type !== 'post') {
			$edit_post = null;
			$edit_id = 0;
		}
	} else {
		$edit_id = 0;
	}
}

$is_guest = $user_id <= 0;
$can_add = $front ? $front->can_submit($user_id) : false;
$can_edit = $edit_post instanceof WP_Post;
$is_can_new = $can_edit || $can_add;

// Caps.
$cap = static function (string $c) use ($front, $user_id, $edit_id): bool {
	if ($front) {
		return $front->user_can_cap($c, $user_id, $edit_id ?: null);
	}
	return function_exists('aksrt_user_can') ? aksrt_user_can($c, $user_id, $edit_id ?: null) : ($user_id > 0);
};

$post_meta = [];
if ($edit_post) {
	$raw_meta = get_post_meta($edit_post->ID, \AKSRT\Core\DomainModel::POST_META_KEY, true);
	$post_meta = is_array($raw_meta) ? $raw_meta : [];
}
$pay_meta = ($edit_post && function_exists('aksrt_get_pay_meta'))
	? aksrt_get_pay_meta($edit_post->ID)
	: (class_exists('\AKSRT\Core\DomainModel') ? \AKSRT\Core\DomainModel::default_pay_meta() : []);

// Featured initial args for JS.
$featured_args = ['type' => '', 'data' => new stdClass(), 'options' => [
	'image' => $cap('new_post_image_cover'),
	'slide' => $cap('new_post_slide_cover'),
	'video' => $cap('new_post_video_cover'),
	'ratio' => 50,
]];
if ($edit_post) {
	if (!empty($post_meta['featured_video'])) {
		$featured_args['type'] = 'video';
		$featured_args['data'] = [
			'url' => (string) $post_meta['featured_video'],
			'pic' => (string) ($post_meta['thumbnail_url'] ?? ''),
		];
	} elseif (!empty($post_meta['featured_slide'])) {
		$slides = array_filter(array_map('trim', explode(',', (string) $post_meta['featured_slide'])));
		$slide_data = [];
		foreach ($slides as $attachment_id) {
			$id  = absint($attachment_id);
			$url = $id > 0 ? wp_get_attachment_image_url($id, 'full') : false;
			if ($url) {
				$slide_data[] = ['id' => $id, 'url' => $url];
			}
		}
		if ($slide_data) {
			$featured_args['type'] = 'slide';
			$featured_args['data'] = $slide_data;
		}
	} else {
		$thumb = get_the_post_thumbnail_url($edit_post, 'full')
			?: (string) ($post_meta['thumbnail_url'] ?? $post_meta['cover_image'] ?? '');
		if ($thumb !== '') {
			$featured_args['type'] = 'image';
			$featured_args['data'] = ['url' => $thumb];
		}
	}
}

// Terms.
$cat_args = [
	'taxonomy'   => 'category',
	'hide_empty' => false,
	'orderby'    => 'name',
	'order'      => 'ASC',
];
if (!empty($settings['allowed_cat_ids'])) {
	$cat_args['include'] = $settings['allowed_cat_ids'];
} else {
	$cat_args['parent'] = 0;
}
$categories = get_terms($cat_args);
if (is_wp_error($categories)) {
	$categories = [];
}
$current_cats = $edit_post ? wp_get_post_categories($edit_post->ID) : [];

$custom_dimensions = [];
$current_cf = [];
if (!empty($settings['custom_filter_s']) && class_exists('\AKSRT\Settings\Settings')) {
	$filter_all = \AKSRT\Settings\Settings::get_post_filter_settings();
	$custom_dimensions = $filter_all['custom_filter'] ?? [];
	if ($edit_post && !empty($custom_dimensions)) {
		foreach ($custom_dimensions as $dim) {
			$key = sanitize_key((string) ($dim['key'] ?? ''));
			if ($key === '') {
				continue;
			}
			$current_cf[$key] = get_post_meta($edit_post->ID, '_aksrt_cf_' . $key, true);
		}
	}
}

$current_title   = $edit_post ? $edit_post->post_title : '';
$current_content = $edit_post ? $edit_post->post_content : '';
$current_excerpt = $edit_post ? $edit_post->post_excerpt : '';
$current_tags    = $edit_post ? implode(', ', wp_get_post_tags($edit_post->ID, ['fields' => 'names'])) : '';
$post_status     = $edit_post ? $edit_post->post_status : '';
$post_modified   = $edit_post ? $edit_post->post_modified : '';

$draft_count = 0;
$user_drafts = [];
if ($user_id > 0) {
	$user_drafts = get_posts([
		'post_type'   => 'post',
		'post_status' => 'draft',
		'author'      => $user_id,
		'numberposts' => 10,
		'orderby'     => 'modified',
		'order'       => 'DESC',
	]);
	$draft_count = count($user_drafts);
}

// VIP labels / points.
$vip = class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'get_vip_settings')
	? \AKSRT\Settings\Settings::get_vip_settings()
	: [];
if (empty($vip) && class_exists('\AKSRT\Settings\PaymentRuntime')) {
	// Fallback: read common keys.
	$all = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_all() : [];
	$vip = [
		'vip1_enabled' => !empty($all['pay_user_vip_1_s']),
		'vip2_enabled' => !empty($all['pay_user_vip_2_s']),
		'vip1_name'    => (string) ($all['pay_user_vip_1_name'] ?? 'VIP1'),
		'vip2_name'    => (string) ($all['pay_user_vip_2_name'] ?? 'VIP2'),
	];
}
$vip_levels = is_array($vip['levels'] ?? null) ? $vip['levels'] : [];
$vip = [
	'vip1_enabled' => !empty($vip['vip1_enabled']) || !empty($vip_levels[1]['enabled']),
	'vip2_enabled' => !empty($vip['vip2_enabled']) || !empty($vip_levels[2]['enabled']),
	'vip1_name'    => (string) ($vip['vip1_name'] ?? $vip_levels[1]['name'] ?? 'VIP1'),
	'vip2_name'    => (string) ($vip['vip2_name'] ?? $vip_levels[2]['name'] ?? 'VIP2'),
];
$points_enabled = class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'credits_enabled')
	? \AKSRT\Settings\Settings::credits_enabled()
	: false;

$submit_label = __('发布', 'aksrt');
if ($is_guest) {
	$submit_label = __('审核', 'aksrt');
} elseif ($edit_post && in_array($post_status, ['publish', 'pending'], true)) {
	$submit_label = __('保存', 'aksrt');
} elseif (($settings['review_mode'] ?? 'pending') === 'pending' && !$cap('new_post_audit_no')) {
	$submit_label = __('审核', 'aksrt');
}

$ai_available = class_exists('\AKSRT\Ai\AI') && \AKSRT\Ai\AI::get_instance()->is_available();

return [
	'front'              => $front,
	'user_id'            => $user_id,
	'settings'           => $settings,
	'enabled'            => $enabled,
	'edit_id'            => $edit_id,
	'edit_post'          => $edit_post,
	'is_guest'           => $is_guest,
	'is_can_new'         => $is_can_new,
	'cap'                => $cap,
	'post_meta'          => $post_meta,
	'pay_meta'           => $pay_meta,
	'featured_args'      => $featured_args,
	'categories'         => $categories,
	'current_cats'       => $current_cats,
	'custom_dimensions'  => $custom_dimensions,
	'current_cf'         => $current_cf,
	'current_title'      => $current_title,
	'current_content'    => $current_content,
	'current_excerpt'    => $current_excerpt,
	'current_tags'       => $current_tags,
	'post_status'        => $post_status,
	'post_modified'      => $post_modified,
	'draft_count'        => $draft_count,
	'user_drafts'        => $user_drafts,
	'vip'                => $vip,
	'points_enabled'     => $points_enabled,
	'submit_label'       => $submit_label,
	'ai_available'       => $ai_available,
	'can_pay'            => $cap('new_post_pay'),
	'can_pay_download'   => $cap('new_post_pay_download'),
	'can_cover_image'    => $cap('new_post_image_cover'),
	'can_cover_slide'    => $cap('new_post_slide_cover'),
	'can_cover_video'    => $cap('new_post_video_cover'),
	'can_upload_img'     => $cap('upload_submit_image'),
	'can_upload_video'   => $cap('new_post_upload_video'),
	'can_upload_file'    => $cap('upload_resource_attachment'),
	'can_hide'           => $cap('new_post_hide'),
	'can_iframe'         => $cap('new_post_iframe_video'),
];