<?php

////////////////// Index file //////////////
/// Creates base routes and runs         ///
/// respective functions                 ///
////////////////////////////////////////////
//require “routes.php”;
require "../vendor/autoload.php";
include "middleware.php";
include "timelineData.php";
include "projectData.php";
include "user.php";
include "blogData.php";

use api\blogData;
use api\middleware;
use api\projectData;
use api\timelineData;
use api\user;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Selective\SameSiteCookie\SameSiteCookieConfiguration;
use Selective\SameSiteCookie\SameSiteCookieMiddleware;
use Slim\Factory\AppFactory;
use Tuupola\Middleware\JwtAuthentication;

// Start slim
$app = AppFactory::create();

// set base path for all routes
$app->setBasePath("/api");

// Add middleware
new middleware($app);

$timelineData = new timelineData();
$projectData = new projectData();
$blogData = new blogData();
$user = new user();

$app->get("/timelineData/{timeline}", function (Request $request, Response $response, array $args)
{
    global $timelineData;

    //check if route is available if it is get the data
    //otherwise return an error
    if($args["timeline"] == "edu")
    {
        $response->getBody()->write(json_encode($timelineData->getEduData()));
        return $response;
    }
    
    if($args["timeline"] == "work")
    {
        $response->getBody()->write(json_encode($timelineData->getWorkData()));
        return $response;
    }

    // something went wrong
    $response->getBody()->write(json_encode(array("errorMessage" => "Error, timeline data not found")));
    return $response->withStatus(404);
});

$app->patch("/timelineData/{timeline}/{id}", function (Request $request, Response $response, array $args)
{
    global $timelineData;
    $data = $request->getParsedBody();
    if ($args["timeline"] == "edu" && $args["id"] != "undefined")
    {
        if (empty($data["dateFrom"]) || empty($data["dateTo"]) || empty($data["grade"]) || empty($data["course"]))
        {
            // uh oh sent some empty data
            $response->getBody()->write(json_encode(array("error" => "Only some of the data was sent")));
            return $response->withStatus(400);
        }

        if (!$timelineData->updateEduData($data["dateFrom"], $data["dateTo"], $data["grade"], $data["course"], $args["id"]))
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong")));
            return $response->withStatus(500);
        }

        $response->withStatus(201);
        return $response;
    }

    if ($args["timeline"] == "work" && $args["id"] != "undefined")
    {
        if (empty($data["dateFrom"]) || empty($data["dateTo"]) || empty($data["companyName"]) || empty($data["area"]) || empty($data["title"]))
        {
            // uh oh sent some empty data
            $response->getBody()->write(json_encode(array("error" => "Only some of the data was sent")));
            return $response->withStatus(400);
        }
        
        if (!$timelineData->updateWorkData($data["dateFrom"], $data["dateTo"], $data["companyName"], $data["area"], $data["title"], $args["id"]))
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong")));
            return $response->withStatus(500);
        }

        $response->withStatus(201);
        return $response;
    }

    $response->getBody()->write(json_encode(array("error" => "The correct data was not sent")));
    return $response->withStatus(400);
});

$app->delete("/timelineData/{timeline}/{id}", function (Request $request, Response $response, array $args)
{
    global $timelineData;
    if ($args["timeline"] == "edu" && $args["id"] != null)
    {
        if (!$timelineData->deleteEduData($args["id"]))
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong")));
            return $response->withStatus(500);
        }

        return $response;
    }

    if ($args["timeline"] == "work" && $args["id"] != null)
    {
        if (!$timelineData->deleteWorkData($args["id"]))
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong")));
            return $response->withStatus(500);
        }

        return $response;
    }

    $response->getBody()->write(json_encode(array("error" => "The correct data was not sent")));
    return $response->withStatus(400);
});

$app->post("/timelineData/{timeline}", function (Request $request, Response $response, array $args)
{
    global $timelineData;
    $data = $request->getParsedBody();
    if ($args["timeline"] == "edu")
    {
        if (empty($data["dateFrom"]) || empty($data["dateTo"]) || empty($data["grade"]) || empty($data["course"]))
        {
            // uh oh sent some empty data
            $response->getBody()->write(json_encode(array("error" => "Only some of the data was sent")));
            return $response->withStatus(400);
        }

        $insertedID = $timelineData->addEduData($data["dateFrom"], $data["dateTo"], $data["grade"], $data["course"]);
        if (!is_int($insertedID))
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong")));
            return $response->withStatus(500);
        }
    
        $response->getBody()->write(json_encode(array("ID" => $insertedID)));
        $response->withStatus(201);
        return $response;
    }

    if ($args["timeline"] == "work")
    {
        if (empty($data["dateFrom"]) || empty($data["companyName"]) || empty($data["area"]) || empty($data["title"]))
        {
            // uh oh sent some empty data
            $response->getBody()->write(json_encode(array("error" => "Only some of the data was sent")));
            return $response->withStatus(400);
        }
        
        if (empty($data["dateTo"]))
        {
            $data["dateTo"] = "";
        }
        
        $insertedID = $timelineData->addWorkData($data["dateFrom"], $data["dateTo"], $data["companyName"], $data["area"], $data["title"]);
        if (!is_int($insertedID))
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong")));
            return $response->withStatus(500);
        }
        
        $response->getBody()->write(json_encode(array("ID" => $insertedID)));
        $response->withStatus(201);
        return $response;
    }

    $response->getBody()->write(json_encode(array("error" => "The correct data was not sent")));
    return $response->withStatus(400);
});

$app->get("/projectData", function (Request $request, Response $response)
{
    global $projectData;

    $result = $projectData->getProjectData();

    $json = json_encode($result);

    $response->getBody()->write($json);

    if(array_key_exists("errorMessage", $result))
    {
        $response = $response->withStatus(404);
    }

    //use content type json to indicate json data on frontend.
    return $response;
});

$app->patch("/projectData/{id}", function (Request $request, Response $response, array $args)
{
    global $projectData;
    $data = $request->getParsedBody();
    if ($args["id"] != "undefined")
    {
        if (empty($data["title"]) || empty($data["isMainProject"]) || empty($data["information"]) || empty($data["gitLink"]))
        {
            // uh oh sent some empty data
            $response->getBody()->write(json_encode(array("error" => "Only some of the data was sent")));
            return $response->withStatus(400);
        }

        $update = $projectData->updateProjectData($args["id"], $data["title"], $data["isMainProject"], $data["information"], $data["projectLink"], $data["gitLink"]);

        if ($update === "unset main project")
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Can't unset project as main project, try updating another project as the main project")));
            return $response->withStatus(400);
        }

        if (!$update)
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong")));
            return $response->withStatus(500);
        }
        return $response;
    }

    $response->getBody()->write(json_encode(array("error" => "Please provide an ID")));
    return $response->withStatus(400);
});

$app->delete("/projectData/{id}", function (Request $request, Response $response, array $args)
{
    global $projectData;
    if ($args["id"] != null)
    {
        $message = $projectData->deleteProjectData($args["id"]);
        if ($message === "error")
        {
            // uh oh something went wrong
            $response->getBody()->write(json_encode(array("error" => "Something went wrong or the project with ID ".$args["id"]."does not exist")));
            return $response->withStatus(500);
        }

        if ($message === "cannot delete")
        {
            //uh oh cannot delete the main project
            $response->getBody()->write(json_encode(array("error" => "Cannot delete the main project")));
            return $response->withStatus(409);
        }

        return $response;
    }

    $response->getBody()->write(json_encode(array("error" => "Please provide an ID")));
    return $response->withStatus(400);
});

$app->post("/projectData", function (Request $request, Response $response)
{
    global $projectData;
    $data = $request->getParsedBody();
    if (empty($data["title"]) || empty($data["isMainProject"]) || empty($data["information"]) || empty($data["gitLink"]))
    {
        // uh oh sent some empty data
        $response->getBody()->write(json_encode(array("error" => "Only some of the data was sent")));
        return $response->withStatus(400);
    }

    $insertedID = $projectData->addProjectData($data["title"], $data["isMainProject"], $data["information"], $data["projectLink"], $data["gitLink"]);
    if (!is_int($insertedID))
    {
        // uh oh something went wrong
        $response->getBody()->write(json_encode(array("error" => "Something went wrong", "message" => $insertedID)));
        return $response->withStatus(500);
    }

    $response->getBody()->write(json_encode(array("ID" => $insertedID)));
    return $response;
});

$app->post("/projectImage/{id}", function (Request $request, Response $response, array $args)
{
    global $projectData;
    $files = $request->getUploadedFiles();
    if (empty($args["id"]) || empty($files))
    {
        // uh oh only some of the data was sent
        $response->getBody()->write(json_encode(array("error" => "Only some of the data was sent")));
        return $response->withStatus(400);
    }

    $message = $projectData->uploadImage($args["id"], $files["img"]);
    if (!is_array($message))
    {
        // uh oh something went wrong
        $response->getBody()->write(json_encode(array("error" => $message)));
        return $response->withStatus(500);
    }

    $response->getBody()->write(json_encode($message));
    return $response;
});

$app->post("/contact", function (Request $request, Response $response)
{
    $data = $request->getParsedBody();
    if(empty($data["fName"]) || empty($data["lName"]) || empty($data["email"]) || empty($data["subject"]) || empty($data["message"]))
    {
      $response->getBody()->write(json_encode(array("errorMessage" => "Please fill out all the fields")));
      return $response->withStatus(400);

    }
    
    if (!filter_var($data["email"], FILTER_VALIDATE_EMAIL)) 
    {
      $response->getBody()->write(json_encode(array("errorMessage" => "Email is not the correct format")));
      return $response->withStatus(400);
    }
    
    // email form filler/conatcter
    $headers1 = "From: noreply@rohitpai.co.uk\r\n";
    $headers1 .= "Reply-To: rohit@rohitpai.co.uk\r\n";
    $headers1 .= "MIME-Version: 1.0\r\n";
    $headers1 .= "Content-Type: text/html; charset=UTF-8\r\n";
    
    $message1 = "
    <html lang=\"en\">
    <head>
    <title>{$data['subject']}</title>
    <style>
        @import url(\"https://fonts.googleapis.com/css2?family=Noto+Sans:ital,wght@0,400;0,700;1,400;1,700&family=Share+Tech+Mono&family=Source+Sans+Pro:ital,wght@0,200;0,300;0,400;0,600;0,700;0,900;1,200;1,300;1,400;1,600;1,700;1,900&display=swap\");
        body {
            font-family: Noto Sans KR, sans-serif;
            font-style: normal;
            font-weight: 500;
            font-size: var(--generalFS);
            line-height: 1.625rem;
        }
        
        table {
            border-collapse: collapse;
            width: 100%;
        }
        
        table td, table th {
            border: 1px solid #ddd;
            padding: 8px;
        }
        
        table tr:nth-child(even) {
            background-color: #f2f2f2;
        }
        
        table tr:hover {
            background-color: #ddd;
        }
        
        table th {
            padding-top: 12px;
            padding-bottom: 12px;
            text-align: left;
            background-color: hsla(79, 62%, 59%, 1);
            color: white;
        }
        
        hr {
            border-color: hsla(0, 0%, 78%, 1);
        }
    </style>
    </head>
    <body>
        <p>Thank you for filling out the form on my website, I will try to respond to your query as soon as I can.</p>
        <br>
        <p>Below is what you filled in for your record</p>
        <table>
            <thead>
                <th>Firstname</th>
                <th>Lastname</th>
                <th>Email</th>
                <th>Subject</th>
                <th>message</th>
            </thead>
            <tr>
                <td>{$data['fName']}</td>
                <td>{$data['lName']}</td>         
                <td><a href=\"mailto:{$data['email']}\">{$data['email']}</a></td>
                <td>{$data['subject']}</td>
                <td>{$data['message']}</td>
            </tr>
        </table>
        <br>
        <hr>
        <p>Regards, <br> Rohit Pai <br> <a href=\"mailto:rohit@rohitpai.co.uk\">rohit@rohitpai.co.uk</a>
    </body>
    </html>
    ";
    
    mail($data["email"], $data["subject"], $message1, $headers1);
    
    // email to me
    $headers2 = "From: noreply@rohitpai.co.uk\r\n";
    $headers2 .= "Reply-To: {$data['email']}\r\n";
    $headers2 .= "MIME-Version: 1.0\r\n";
    $headers2 .= "Content-Type: text/html; charset=UTF-8\r\n";
    
    $message2 = "
    <html lang=\"en\">
    <head>
    <title>{$data['subject']}</title>
    <style>
        @import url(\"https://fonts.googleapis.com/css2?family=Noto+Sans:ital,wght@0,400;0,700;1,400;1,700&family=Share+Tech+Mono&family=Source+Sans+Pro:ital,wght@0,200;0,300;0,400;0,600;0,700;0,900;1,200;1,300;1,400;1,600;1,700;1,900&display=swap\");
        body {
            font-family: Noto Sans KR, sans-serif;
            font-style: normal;
            font-weight: 500;
            font-size: var(--generalFS);
            line-height: 1.625rem;
        }
        
        table {
            border-collapse: collapse;
            width: 100%;
        }
        
        table td, table th {
            border: 1px solid #ddd;
            padding: 8px;
        }
        
        table tr:nth-child(even) {
            background-color: #f2f2f2;
        }
        
        table tr:hover {
            background-color: #ddd;
        }
        
        table th {
            padding-top: 12px;
            padding-bottom: 12px;
            text-align: left;
            background-color: hsla(79, 62%, 59%, 1);
            color: white;
        }
        
        hr {
            border-color: hsla(0, 0%, 78%, 1);
        }
    </style>
    </head>
    <body>
        <p>{$data['fName']} {$data['lName']} filled in the form on the website, here is what they sent.</p>
        <table>
            <thead>
                <th>Firstname</th>
                <th>Lastname</th>
                <th>Email</th>
                <th>Subject</th>
                <th>message</th>
            </thead>
            <tr>
                <td>{$data['fName']}</td>
                <td>{$data['lName']}</td>         
                <td><a href=\"mailto:{$data['email']}\">{$data['email']}</a></td>
                <td>{$data['subject']}</td>
                <td>{$data['message']}</td>
            </tr>
        </table>
    </body>
    </html>
    ";
    
    mail("rohit@rohitpai.co.uk", "{$data['fName']} {$data['lName']} filled in the form", $message2, $headers2);
    return $response->withStatus(201);
});

$app->post("/user/login", function (Request $request, Response $response) 
{
    
    global $user;
    
    // get request data
    $data = $request->getParsedBody();
    
    if (empty($data["username"]) || empty($data["password"])) 
    {
        // uh oh user sent empty data
        return $response->withStatus(400);
    }

    if ($user->checkUser($data["username"], $data["password"]))
    {
        // yay, user is logged in
        $_SESSION["token"] = $user->createToken($data["username"]);
        $_SESSION["username"] = $data["username"];
        $response->getBody()->write(json_encode(array("token" => $_SESSION["token"])));
        return $response;
    }
    $response->getBody()->write(json_encode(array("error" => "Unauthorised")));
    return $response->withStatus(401);
});

$app->get("/user/logout", function (Request $request, Response $response)
{
    session_unset();
    return $response;
});

$app->get("/user/isLoggedIn", function (Request $request, Response $response) 
{
    global $user;

    if (empty($_SESSION["token"]) && empty($_SESSION["username"])) 
    {
        // uh oh user not logged in
        return $response->withStatus(401);
    }

    if (empty($_SESSION["token"]))
    {
        // user is logged in but no token was created
        $_SESSION["token"] = $user->createToken($_SESSION["username"]);
        return $response;
    }

    $response->getBody()->write(json_encode(array("token" => $_SESSION["token"])));
    return $response;

});

$app->get("/user/checkResetEmail/{email}", function (Request $request, Response $response, array $args)
{
    global $user;
    
    if (empty($args["email"]))
    {
        // uh oh sent empty data
        return $response->withStatus(400);
    }
    
    if ($user->checkEmail($args["email"]))
    {
        // yay email does exist
        $_SESSION["resetToken"] = $user->sendResetEmail($args["email"]);
        $_SESSION["resetEmail"] = $args["email"];
        return $response;
    }
    return $response->withStatus(404);
});

$app->get("/user/resendEmail", function (Request $request, Response $response) 
{
    if (empty($_SESSION["resetToken"]))
    {
        // uh oh not authorized to resend email
        return $response->withStatus(401);
    }
    global $user;
    $_SESSION["resetToken"] = $user->sendResetEmail($_SESSION["resetEmail"]);
    return $response;
});

$app->get("/user/checkResetCode/{code}", function (Request $request, Response $response, array $args)
{
    if (empty($args["code"]))
    {
        // uh oh sent empty data
        return $response->withStatus(400);
    }
    
    if ($_SESSION["resetToken"] === $args["code"])
    {
        // yay, code code matches
        return $response;
    }
    
    return $response->withStatus(401);
});

$app->post("/user/changePassword", function (Request $request, Response $response) 
{
    global $user;
    if (empty($_SESSION["resetToken"]) && empty($_SESSION["resetEmail"]))
    {
        // uh oh not authorized to change password
        return $response->withStatus(401);
    }
    
    $data = $request->getParsedBody();
    if (empty($data["password"]))
    {
        // uh oh sent empty data
        return $response->withStatus(400);
    }
    
    if ($user->changePassword($_SESSION["resetEmail"], $data["password"]))
    {
        // yay, password changed
        unset($_SESSION["resetToken"]);
        unset($_SESSION["resetEmail"]);
        return $response;
    }
    
    return $response->withStatus(500);
});

$app->run();