<?php

namespace Controllers;

use Core\Controller;
use Models\PostModel;
use Models\TagModel;

class PostController extends Controller
{
    private $postModel;
    private $tagModel;

    public function __construct()
    {
        parent::__construct();
        $this->postModel = new PostModel();
        $this->tagModel  = new TagModel();
    }

    public function index()
    {
        $postsPerPage = $postsPerPage = MAX_POSTS_PER_PAGE;
        if ($postsPerPage < 1) {
            $postsPerPage = 5; // fallback
        }
    
        $page = isset($_GET['page']) ? (int)$_GET['page'] : 1;
        if ($page < 1) {
            $page = 1;
        }
    
        $totalPosts = $this->postModel->countAll();
        $totalPages = ceil($totalPosts / $postsPerPage);
        if ($totalPages < 1) {
            $totalPages = 1;
        }
    
        $offset = ($page - 1) * $postsPerPage;
    
        $posts = $this->postModel->getPaginated($offset, $postsPerPage);
    
        foreach ($posts as &$post) {
            // getTagsByPostId() returns all tags for this post
            $post['tags'] = $this->tagModel->getTagsByPostId($post['id']);
        }
        
        $this->view->render('post/list.php', [
            'posts'       => $posts,
            'totalPages'  => $totalPages,
            'currentPage' => $page
        ]);
    }
    

    public function view($id)
    {
        // Просмотр конкретного поста
        $post = $this->postModel->getById($id);

        if (!$post) {
            die("Пост не найден");
        }

        $tags = $this->tagModel->getTagsByPostId($id);

        $this->view->render('post/view.php', [
            'post' => $post,
            'tags' => $tags
        ]);
    }

    public function tag($tagName)
    {
        // Посты по тегу
        $posts = $this->tagModel->getPostsByTagName($tagName);
    
        // Attach each post's tags
        foreach ($posts as &$post) {
            $post['tags'] = $this->tagModel->getTagsByPostId($post['id']);
        }
    
        // Pass them to the list view
        $this->view->render('post/list.php', [
            'posts'    => $posts,
            'tagName'  => $tagName
        ]);
    }
    
    public function archive($yearMonth)
    {
        list($year, $month) = explode('-', $yearMonth);
    
        $posts = $this->postModel->getByYearMonth($year, $month);
    
        $monthName = date('F', mktime(0, 0, 0, (int)$month, 1, (int)$year));
        $archiveLabel = $monthName . ' ' . $year;
    
        $this->view->render('post/list.php', [
            'posts' => $posts,
            'archiveLabel' => $archiveLabel
        ]);
    }

}