<?php
$root = realpath($_SERVER["DOCUMENT_ROOT"]);
session_start();
require("config.php");
require("Article.php");
$action = isset($_GET['action']) ? $_GET['action'] : "";
$username = isset($_SESSION['username']) ? $_SESSION['username'] : "";

if ($username == "") {
    $_SESSION['error_msg'] = "You need to be logged in as administrator to perform these tasks.";
    header("Location: /auth/login");
}

switch ($action) {
    case 'new':
        newArticle();
        break;
    case 'edit':
        edit();
        break;
    case 'delete':
        delete();
        break;
    default:
        listArticles();
}

function newArticle() {
    if (isset($_POST['save'])) {
        $article = new Article;
        $article->storeFormValues($_POST);
        $article->insert();
        header("Location: admin.php?status=saved");
    } elseif (isset($_POST['cancel'])) {
        header("Location: admin.php");
    } else {
        $results['article'] = new Article;
        require("edit.php");
    }
}

function edit() {
    $results = array();
    $results['pageTitle'] = "Edit Article";
    $result['form'] = "edit";

    if (isset($_POST['save'])) {
        if (!$article = Article::getById((int)$_POST['id'])) {
            header( "Location: admin.php?error=notFound" );
            return;
        }
        $article->storeFormValues($_POST);
        $article->update();
        header("Location: admin.php?status=saved");
    } elseif (isset($_POST['cancel'])) {
        header("Location: admin.php");
    } else {
        $results['article'] = Article::getById((int)$_GET['article']);
        require("edit.php");
    }
}

function delete() {
    if (!$article = Article::getById((int) $_GET['article'])) {
        header("Location: admin.php?error=notFound");
        return;
    }
    $article->delete();
    header("Location: admin.php?status=deleted");
}

function listArticles() {
    $results = array();
    $data = Article::getList();
    // print_r($data);
    $results['articles'] = $data;
    // $results['totalRows'] = $data['totalRows'];
    $results['pageTitle'] = "All Articles";
    if (isset($_GET['error'])) {
        if ($_GET['error'] == "notFound") {
            $results['error'] = "Error: Article not found."; 
        }
    }
    if (isset( $_GET['status'])) {
        if ($_GET['status'] == "saved") $results['status'] = "Your changes have been saved.";
        if ($_GET['status'] == "deleted") $results['status'] = "Article deleted.";
    }
    require("list.php");
}
?>