<?php
namespace Incoviba\Service;

use DateTimeInterface;
use Psr\Log\LoggerInterface;
use Incoviba\Common\Define\Money\Provider;
use Incoviba\Common\Implement\Exception\EmptyResponse;

class Money
{
    const UF = 'uf';
    const USD = 'usd';
    const IPC = 'ipc';

    public function __construct(protected LoggerInterface $logger) {}

    protected array $providers;
    public function register(string $name, Provider $provider): Money
    {
        if (isset($this->providers) and isset($this->providers[$name]) and in_array($provider, $this->providers[$name])) {
            return $this;
        }
        if (!isset($this->providers[$name])) {
            $this->providers[$name] = [];
        }
        $this->providers[$name] []= $provider;
        return $this;
    }
    public function getProviders(string $name): array
    {
        return $this->providers[$name];
    }

    public function get(string $provider, DateTimeInterface $dateTime): float
    {
        $providers = $this->getProviders($provider);
        foreach ($providers as $provider) {
            try {
                return $provider->get(self::getSymbol($provider), $dateTime);
            } catch (EmptyResponse $exception) {
                $this->logger->notice($exception);
            }
        }
        return 0;
    }
    public function getUF(?DateTimeInterface $dateTime = null): float
    {
        $providers = $this->getProviders('uf');
        foreach ($providers as $provider) {
            try {
                return $provider->get(self::UF, $dateTime);
            } catch (EmptyResponse $exception) {
                $this->logger->notice($exception);
            }
        }
        return 0;
    }
    public function getIPC(DateTimeInterface $start, DateTimeInterface $end): float
    {
        if ($start >= $end) {
            return 0;
        }
        $providers = $this->getProviders('ipc');
        foreach ($providers as $provider) {
            try {
                return $provider->getVar($start, $end);
            } catch (EmptyResponse $exception) {
                $this->logger->notice($exception);
            }
        }
        return 0;
    }
    public function getUSD(DateTimeInterface $dateTime): float
    {
        $providers = $this->getProviders('usd');
        foreach ($providers as $provider) {
            try {
                return $provider->get(self::USD, $dateTime);
            } catch (EmptyResponse $exception) {
                $this->logger->notice($exception);
            }
        }
        return 0;
    }

    public static function getSymbol(string $identifier): string
    {
        $upper = strtoupper($identifier);
        $output = '';
        eval("\$output = self::{$upper};");
        return $output;
    }
}