WEB/src/Controller/ApiController.php

<?php
namespace App\Controller;

use App\Utility\EprosumeModel;
use App\Utility\WalletEprosumeModel;

use Cake\Core\Configure;
use Cake\Http\Exception\ForbiddenException;
use Cake\Http\Exception\NotFoundException;
use Cake\View\Exception\MissingTemplateException;

use Cake\Event\Event;

class ApiController extends SSPController
{
    private $user;

    public function initialize()
    {
        $this->EprosumeModel = new EprosumeModel();
        $this->WalletEprosumeModel = new WalletEprosumeModel();
        $this->loadComponent('ApiAuth', [
            'className' => 'Auth',
            'authenticate' => [
                'Basic' => [
                    'fields' => ['username' => 'username', 'password' => 'password']
                ]
            ],
            'userModel' => 'Users'
        ]);
    }

    public function beforeFilter(Event $event)
    {
        if(!$this->user = $this->ApiAuth->identify()) {
            return $this->response
                ->withStatus(401);
        }
        if( 
            $this->request->getEnv('REQUEST_METHOD') == "POST"
            &&
            $this->user["role"] != "admin"
        ) {
            return $this->response
                ->withStatus(403);
        }
    }

    public function blockID($block_id) {
        $block = $this->EprosumeModel->blocksList(['id' => $block_id])->current();
        return $block 
            ? $this->response
                ->withStatus(200)
                ->withType('application/json')
                ->withStringBody(
                    json_encode(
                        (function($array) {
                            array_walk(
                                $array,
                                function(&$v,$k) use(&$array) {
                                    if(!is_string($k)) {
                                        unset($array[$k]);
                                    }
                                }
                            );
                            return $array;            
                        })($block)
                    )
                )
            : $this->response
                ->withStatus(404)
                ->withType('application/json')
            ;
    }

    public function meter()
    {
        return $this->response
            ->withStatus(200)
            ->withType('application/json')
            ->withStringBody(
                json_encode(
                    array_values(
                        array_replace_recursive(
                            $this->EprosumeModel->meterList(),
                            $this->EprosumeModel->actualPrice([])
                        )    
                    )    
                )
            )
        ;        
    }

    public function meterID($meter_id)
    {
        return $this->response
            ->withStatus(200)
            ->withType('application/json')
            ->withStringBody(
                json_encode(
                    array_merge(
                        $this->EprosumeModel->balanceMeter($meter_id),
                        $this->EprosumeModel->actualPrice($meter_id)[$meter_id] ?? []
                    )
                )
            )
        ;
    }

    public function transfer()
    {
        if( $this->request->getEnv('REQUEST_METHOD') == "POST") {
            $request = $this->getRequestInput();
            return $this->doTransfer(
                $request["meter"] ?? null, 
                $request["amount"] ?? null, 
                $request["asset"] ?? null, 
                $request["memo"] ?? null
            );
        } else {
            return $this->response->withStatus(400);
        }
    }

    public function price()
    {
        if( $this->request->getEnv('REQUEST_METHOD') == "POST") {
            $request = $this->getRequestInput();
            return $this->doSetPrice(
                $request["meter"] ?? null, 
                $request["buyPrice"] ?? null, 
                $request["sellPrice"] ?? null
            );
        } else if( $this->request->getEnv('REQUEST_METHOD') == "GET") {
            return $this->priceHistory();
        }
        return null;
    }


    public function history()
    {
        return $this->SSPResponse("history", null);
    }

    public function payment()
    {
        return $this->SSPResponse("payment", null);
    }

    public function priceHistory()
    {
        return $this->SSPResponse("priceHistory", null);
    }

}