<!-- Routing management and request processing unit -->

<!-- Uses slim framework for routing management -->

<?php

$_ENV['SLIM_MODE'] = 'development';

require 'vendor/autoload.php';

$app = new \Slim\Slim(array(

'debug'=>true,

'templates.path'=>'templates/'

));

// currying. Inject $app variable into the callback using 'use'

// alternatively, I could have used the Slim::getInstance() static method

$app->get('/(index)?', function() use($app) {

require_once 'core/user.inc.php';

require_once 'core/post.inc.php';

require_once 'core/comment.inc.php';

require_once 'core/tag.inc.php';

// $db = Db::getInstance();

$user = new User;

$post = new Post;

$comment = new Comment;

$tag = new Tag;

$loggedIn = 0;

session_start();

if($user->isLoggedIn()) {

$loggedIn = 1;

}

$result = $post->getTopPosts();

$app->render('home.php', array('user'=>$user, 'loggedIn' => $loggedIn, 'result' => $result,'comment'=>$comment));

});

$app->post('/(index)?', function() use($app) {

require_once 'core/tag.inc.php';

require_once 'core/user.inc.php';

require_once 'core/post.inc.php';

require_once 'core/comment.inc.php';

$tag = new Tag;

$user = new User;

$post = new Post;

$comment = new Comment;

$loggedIn = 0;

$req = $app->request();

$search_tag = $req->post('tag-search');

$posts = array();

session_start();

if($user->isLoggedIn()) {

$loggedIn = 1;

}

$result = $tag->getPostIdByTag($search_tag);

while($pid = $result->fetch_array()[0]) {

array_push($posts, $post->getPost($pid));

}

$app->render('home.php',array('user'=>$user, 'tag_search_result'=>$posts, 'loggedIn'=>$loggedIn, 'comment'=>$comment, 'tag'=>$tag));

});

$app->get('/login', function() use($app) {

session_start();

if(isset($_SESSION['user_id'])) {

$app->redirect('/Blog-It/index');

}

$app->render('login.php');

});

$app->get('/login-to-continue', function() use($app) {

$app->render('login.php',array('new_redirect'=>1));

});

$app->post('/login', function() use($app) {

$req = $app->request();

$err = array('incorrect'=>0,'absent'=>0);

if($req->post('submit')) {

if(!empty($req->post('username')) && !empty($req->post('password'))) {

require_once 'core/user.inc.php';

$user = new User;

$status = $user->login($req->post('username'), $req->post('password'));

if($status) {

// session_start();

if(isset($_SESSION['current_page'])) {

echo $_SESSION['current_page'];

$app->redirect('/Blog-It'.$_SESSION['current_page']);

}

else {

$app->redirect('/Blog-It/me');

}

}

else {

$err['incorrect'] = 1;

$app->render('login.php', array('err'=>$err));

}

}

else {

$err['absent'] = 1;

$app->render('login.php', array('err'=>$err));

}

}

});

$app->get('/signup', function() use($app) {

$err = array('db_err'=>0, 'name'=>0,'username'=>0,'email'=>0,'password'=>0,'conf_password'=>0,'mismatch'=>0,'invalid_email'=>0,'duplicate'=>0);

$action = 0;

session_start();

if(isset($_SESSION['user_id'])) {

$app->redirect('/Blog-Its/index');

}

else {

$app->render('signup.php', array('action' => $action, 'err' => $err));

}

});

$app->post('/signup', function() use($app) {

$req = $app->request();

$err = array('db_err'=>0, 'name'=>0,'username'=>0,'email'=>0,'password'=>0,'conf_password'=>0,'mismatch'=>0,'invalid_email'=>0,'duplicate'=>0);

$action = 0;

if($req->post('signup')) {

require_once 'core/user.inc.php';

$user = new User;

$name = $req->post('name');

$username = $req->post('username');

$password = $req->post('passwd');

$conf_password = $req->post('con_passwd');

$email = $req->post('email');

if(!empty($name) && !empty($username) && !empty($email) && !empty($password) && !empty($conf_password)) {

if($user->validEmail($email) && $password == $conf_password) {

$user_details = array('name'=>$name, 'username'=>$username, 'password'=>$password, 'email'=>$email);

$result = $user->addUser($user_details);

if($result == 1) {

//Succesful Signup, redirect to login to confirm registration

$app->redirect('/Blog-It/login');

}

elseif(explode(' ', $result)[0] == 'Duplicate') {

$err['duplicate'] = 1;

$app->render('signup.php', array('err'=>$err, 'action'=>$action));

}

else {

$err['db_err'] = 1;

$app->render('signup.php', array('err'=>$err, 'action'=>$action));

}

}

else {

if(!($user->validEmail($email))) {

$action = 1;

$err['invalid_email'] = 1;

$app->render('signup.php', array('err'=>$err, 'action'=>$action));

}

if($password != $conf_password) {

$action = 1;

$err['mismatch'] = 1;

$app->render('signup.php', array('err'=>$err, 'action'=>$action));

}

}

}

else {

if(empty($name)) {

$action = 1;

$err['name'] = 1;

}

if(empty($username)) {

$action = 1;

$err['username'] = 1;

}

if(empty($email)) {

$action = 1;

$err['email'] = 1;

}

if(empty($password)) {

$action = 1;

$err['password'] = 1;

}

if(empty($conf_password)) {

$action = 1;

$err['conf_password'] = 1;

}

if(!($user->validEmail($email))) {

$action = 1;

$err['invalid_email'] = 1;

}

// $req->render('signup.php', array('err'=>$err, 'action'=>$action));

}

}

// $app->render('signup.php', array('err'=>$err, 'action'=>$action));

});

$app->get('/logout', function() use($app) {

session_start();

session_destroy();

$app->redirect('/Blog-It/index');

});

/*

* On logging in, redirect to the profile page of the current user

*/

$app->get('/me', function() use($app) {

require_once 'core/user.inc.php';

require_once 'core/post.inc.php';

require_once 'core/followers.inc.php';

$user = new User;

$post = new Post;

$follower = new Follower;

$loggedIn = 0;

$fol_count = 0;

$fid_s = NULL;

session_start();

if($user->isLoggedIn()) {

$loggedIn = 1;

$fol_count = $follower->getCount();

$fid_s = $follower->getFollowersId($_SESSION['user_id']);

}

$postDetails = $post->getTopPostsByUser($_SESSION['user_id']);

$userDetails = $user->getUser($_SESSION['user_id']);

$app->render('author.php', array('loggedIn' => $loggedIn, 'postDetails' => $postDetails,'fol_count'=>$fol_count, 'userDetails' => $userDetails, 'empty' => 0, 'fid_s'=>$fid_s));

});

/*

* Navigate to each user's profile using their unique user_id

*/

$app->get('/author/:id', function($uid) use($app) {

require_once 'core/user.inc.php';

require_once 'core/post.inc.php';

require_once 'core/followers.inc.php';

$user = new User;

$post = new Post;

$follower = new Follower;

$fol_count = 0;

$loggedIn = 0;

$empty = 0;

$postDetails = $post->getTopPostsByUser($uid);

$userDetails = $user->getUser($uid);

if(gettype($postDetails) == 'string') {

$app->notFound();

}

if($postDetails->num_rows == 0) {

$empty = 1;

}

session_start();

if($user->isLoggedIn()) {

$loggedIn = 1;

}

if($loggedIn){

$isFollowing=$follower->isFollowing($uid);

$fol_count = $follower->getCount();

}

if(!$userDetails->num_rows == 0) {

$app->render('author.php', array('loggedIn' => $loggedIn, 'fol_count'=>$fol_count,'postDetails' => $postDetails, 'userDetails' => $userDetails, 'empty' => $empty, 'isFollowing' => $isFollowing,'follower'=>$follower));

}

});

//Handle follow request

$app->post('/follow/:id',function($f_id) use($app){

require_once 'core/followers.inc.php';

$follower = new Follower;

session_start();

//add logged in user as a follower of the author : f_id

if($follower->followMe($f_id,$_SESSION['user_id'])){}

else{

echo "Error";

die("Inserttion failed");

}

//finally redirect the user to the same

$app->redirect('/Blog-It/author/'.$f_id);

});

$app->get('/post/:id', function($pid) use($app) {

require_once 'core/user.inc.php';

require_once 'core/post.inc.php';

require_once 'core/comment.inc.php';

require_once 'core/tag.inc.php';

$user = new User;

$post = new Post;

$comment = new Comment;

$tag = new Tag;

$post_cur = $post->getPost($pid);

$loggedIn = 0;

$name;

if($post_cur->num_rows == 0) {

$app->notFound();

}

else {

session_start();

if($user->isLoggedIn()) {

$loggedIn = 1;

}

$comments=$comment->getComments($pid);

$tag_result=$tag->getTagsByPostId($pid);

$post = $post_cur->fetch_assoc();

$name = $user->getName($post['author_id'])->fetch_assoc()['name'];

$app->render('post.php',array('post'=>$post, 'name'=>$name, 'loggedIn'=>$loggedIn,'comment'=>$comments,'user'=>$user,'tag_result'=>$tag_result));

}

});

$app->post('/post/:id', function($pid) use($app) {

require_once 'core/post.inc.php';

$post = new Post;

$req = $app->request();

if($req->post('upvote')) {

$post->upVote($pid);

$app->redirect('/Blog-It/post/'.$pid.'#up');

}

elseif($req->post('downvote')) {

$post->downVote($pid);

$app->redirect('/Blog-It/post/'.$pid.'#down');

}

elseif($req->post('new-comment')) {

require_once 'core/comment.inc.php';

session_start();

$comment = new Comment;

$comment_body=$req->post('body');

$post_id=$pid;

$author_id=$_SESSION['user_id'];

$result=$comment->putComment(array('body' => $comment_body,'author_id' => $author_id ,'post_id'=>$post_id ));

if($result){

$app->redirect("/Blog-It/post/".$pid);

}else{

$app->redirect("/Blog-It/post/".$pid,array('err' =>1 ));

}

}

else {

require_once 'core/comment.inc.php';

$comment = new Comment;

foreach ($req->post() as $comm => $val) {

$c = explode('-',$comm);

print_r($c);

$up = ($c[0] == 'upvote')?1:0;

$cid = (int)$c[2];

if($up) {

echo "upvote on $cid";

$comment->upVote($cid);

}

else {

echo "downvote on $cid";

$comment->downVote($cid);

}

$app->redirect('/Blog-It/post/'.$pid);

}

}

// elseif($app->request()->post("upvote-comment-$cid"))

});

$app->get('/new-post', function() use($app) {

require_once 'core/user.inc.php';

$user = new User;

session_start();

if($user->isLoggedIn()) {

$app->render('new.php');

}

else {

$_SESSION['current_page'] = '/new-post';

$app->redirect('/Blog-It/login-to-continue');

}

});

$app->post('/new-post', function() use($app) {

$req = $app->request();

if($req->post('new-post')) {

require_once 'core/post.inc.php';

require_once 'core/tag.inc.php';

session_start();

$post = new Post;

$tag = new Tag;

$title = $req->post('title');

$body = $req->post('body');

$tags = explode(" ", $req->post('tags'));

$result = $post->addPost(array('title'=>$title, 'body'=>$body, 'uid'=>$_SESSION['user_id']));

if(gettype($result) == 'integer') {

// print_r($tags);

$tag->addTags($result, $tags);

$app->redirect('/Blog-It/post/'.$result);

}

else {

$app->render('new.php', array('err'=>'There was an error adding your post. Please try again later.'));

}

}

});

/*

* Custom 404 page

*/

$app->notFound(function() use($app) {

require_once 'core/user.inc.php';

$user = new User;

$loggedIn = 0;

session_start();

if($user->isLoggedIn()) {

$loggedIn = 1;

}

$app->render('lost.php', array('loggedIn'=>$loggedIn));

});

$app->post('/delete-post/:id', function($id) use($app) {

$req = $app->request();

if($req->post('delete-post')) {

require_once 'core/post.inc.php';

$post = new Post;

$post->deletePost($id);

$app->redirect('/Blog-It/me');

}

});

$app->post('/delete-comment/:id', function($id) use($app) {

$req = $app->request();

// echo $req->post('delete-comment');

if($req->post('delete-comment')) {

require_once 'core/comment.inc.php';

$post = new Comment;

$post->deleteComment($id);

$app->redirect("/Blog-It/post/".$req->post('delete-comment'));

}

});

$app->run();

?>