<?php
    class Post extends Account {
        private $current_user;
        private $title;
        private $content;

        private $conn;
        public $error;

        public function __construct($current_user, $conn) {
            parent::__construct($current_user, $conn);
            $this->current_user = $current_user;
            $this->conn = $conn;
        }
        
        public function getForm($title, $content) {
            $this->title = $title;
            $this->content = $content;
        }

        public function postUpdate() {
            if (!$this->isLoggedIn()) 
                return;
            
            switch(true) {
                case empty($this->content):
                    $this->error = "Your post cannot be left empty.";
                    break;
                case strlen($this->content) > 2500:
                    $this->error = "Post exceeds the character limit. Are you trying to bypass it?";
                    break;
            }

            return $this->error;
        }

        public function insertPost() {
            if (!$this->isLoggedIn()) 
                return;

            $new_content = $this->content;

            if (empty($this->title)) {
                // micro post
                $type = 1;
                $new_content = substr($this->content, 0, 300);
            } else {
                // marco post
                $type = 2;
            }

            $stmt = $this->conn->prepare("INSERT INTO posts (title, content, author, type) VALUES (:title, :content, :author, :type)");
            $stmt->bindParam(":title", $this->title);
            $stmt->bindParam(":content", $new_content);
            $stmt->bindParam(":author", $this->getDetails("username"));
            $stmt->bindParam(":type", $type);

            $stmt->execute();
            return true;
        }

        public function getPosts($type) {
            $stmt = $this->conn->prepare("SELECT * FROM posts WHERE type = :type ORDER BY date DESC");
            $stmt->bindParam(":type", $type);
            $stmt->execute();

            return $stmt;
        }

        public function getSpecifcPost($id) {
            $stmt = $this->conn->prepare("SELECT * FROM posts WHERE id = :id");
            $stmt->bindParam(":id", $id);
            $stmt->execute();

            $post_details = $stmt->fetch(PDO::FETCH_ASSOC);
            return $post_details;
        }

        public function deletePost($id) {
            $stmt = $this->conn->prepare("DELETE FROM posts WHERE id = :id");
            $stmt->bindParam(":id", $id);
            $stmt->execute();

            return true;
        }
    }
?>