<?php

namespace App\Blog\Providers;

use App\Blog\Support\ThemeManager;
use App\Blog\View\Composers\SidebarComposer;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\View;
use Illuminate\Support\ServiceProvider;

class ThemeServiceProvider extends ServiceProvider
{
    public function register(): void
    {
        $this->app->singleton(ThemeManager::class);
    }

    public function boot(): void
    {
        // 激活主题的 views 目录前置到全局视图路径，实现主题覆盖 + 默认兜底
        $this->prependActiveThemeViews();

        // 侧边栏数据共享：所有前台视图自动获得 $categories/$recentPosts/$hotTags/$links 等
        View::composer(
            ['index', 'show', 'list', 'archives', 'tags', 'tag', 'search', 'links', 'comments', 'login', 'register', 'profile'],
            SidebarComposer::class
        );
    }

    private function prependActiveThemeViews(): void
    {
        $manager = app(ThemeManager::class);

        // 迁移尚未执行（如 migrate:fresh 首轮）时跳过 DB 查询，使用默认主题
        $active = \Illuminate\Support\Facades\Schema::hasTable('settings')
            ? $manager->active()
            : config('themes.default');

        $views = $manager->path($active).'/views';

        if (! is_dir($views)) {
            return;
        }

        $paths = config('view.paths');
        array_unshift($paths, $views);
        config(['view.paths' => $paths]);
        app('view')->getFinder()->setPaths($paths);
    }
}