<?php
header("Content-Type: application/json");

/**
 * Description of ImageController
 *
 * @author SCTN4
 */
class ImageController extends BaseController {
    
    private $imageModel;
    private $requestMethod;
    private $arrQueryStringParams;
    private $strErrorDesc;
    private $strErrorHeader;
	
    public $action;
    
    function __construct() {
        $this->imageModel = new ImageModel();
        $this->requestMethod = $this->getServerRequestMethod();
    }
    
    /*
     * http://localhost/CustomerRewardsRESTAPI/index.php/image/process/upload
     */
    public function processAction() {
        $this->strErrorDesc = '';
        $this->strErrorHeader = '';
        try {
            switch($this->action) {
                case "upload":
                    $response = $this->uploadImage();
                break;

                case "update":
                        $response = $this->updateImage();
                break;

                case "delete":
                        $response = $this->deleteImage();
                break;
            
                default:
                        $response = (object) ['Result' => 'Default'];
                        $this->strErrorDesc = 'Controller Method not supported for processAction: ' . $this->action;
                        $this->strErrorHeader = 'HTTP/1.1 422 Unprocessable Entity';
                break;
            }
        
            $responseData = json_encode($response);
        } catch (Error $e) {
            $this->strErrorDesc = $e->getMessage().' Something went wrong in processAction! Please contact support.';
            $this->strErrorHeader = 'HTTP/1.1 500 Internal Server Error';
        }
        
        // send output 
        if (!$this->strErrorDesc) {
            $this->sendOutput(
                $responseData,
                array('Content-Type: application/json', 'HTTP/1.1 200 OK')
            );
        } else {
            $this->sendOutput(json_encode(array('error' => $this->strErrorDesc)), 
                array('Content-Type: application/json', $this->strErrorHeader)
            );
        }
    }
    
    private function uploadImage(){
        if ($this->checkRequestType('POST') == 'false') {
            $this->strErrorDesc = 'Request Method not supported for processAction';
            $this->strErrorHeader = 'HTTP/1.1 422 Unprocessable Request';
            return;
        }
        // reads the raw POST data and returns it as a string. 
        $jsonPayload = file_get_contents('php://input');
	$input = json_decode($jsonPayload, TRUE);
        if (! $this->validatePerson($input)) {
            return $this->unprocessableEntityResponse();
        }

        //remove customer_id field so it doesn't break 
        unset($input['customer_id']);
        
        $response = $this->customerModel->insertCustomer($input);
        return $response;
    }
    
    private function processImage() {
        $error = false;
        $msg = null;
           
        $uploadTo = "public/images/"; 
        $allowFileType = array('jpg','png','jpeg');
        $fileName = $_FILES['image']['name'];
        $tempPath = $_FILES["image"]["tmp_name"];
        
        $basename = basename($fileName);
        $originalPath = $uploadTo.$basename; 
        $fileType = pathinfo($originalPath, PATHINFO_EXTENSION); 
         
        if(!empty($fileName)){ 
            if(in_array($fileType, $allowFileType)){ 
                if(!move_uploaded_file($tempPath, $originalPath)){ 
                    $msg = 'Image Not uploaded ! try again';
                    $error = true;
                }
            } else {  
                $msg = 'Image type is not allowed'; 
                $error = true;
            }
        } else {
            $msg = 'Image is required'; 
            $error = true;
        }  

        $imageInfo = [
            "error" => $error, 
            "msg" => $msg, 
            "filename" => $fileName,
            "filepath" => $originalPath
        ];
        return  $imageInfo;
    }
    
    private function insert() {
        header("Access-Control-Allow-Origin: *");
        header("Access-Control-Allow-Methods: POST");
        header("Content-Type: application/json");
        
        if ($_SERVER['REQUEST_METHOD'] === 'POST') {
            if (isset($_FILES['image'])) {
                $uploadImage = $this->processImage();
                $success = false;

                if (!$uploadImage['error']) {
                    //  table name for admin profiles
                    $query = "INSERT INTO " . $this->imageTable;
                    $query .=  " (filename, filepath) VALUES (?,?)";
                    $stmt = $this->conn->prepare($query);

                    $stmt->bind_param("ss", $uploadImage['filename'], $uploadImage['filepath']);

                    if ($stmt->execute()) {
                        $success = true;
                        $stmt->close();
                    }
                }

                $data = [
                    'Errormsg' => $uploadImage['msg'] ?? '',
                    'success' => $success
                ];

                return json_encode($data);
            }
        }
    }
    
    private function notFoundResponse()
    {
        $response['status_code_header'] = 'HTTP/1.1 404 Entity Not Found';
        $response['body'] = null;
        $this->strErrorDesc = 'Request Entity Not Found';
        $this->strErrorHeader = 'HTTP/1.1 422 Entity Not Found';
        return $response;
    }
}