<?php

namespace Picea\Extension;

use Picea\Compiler\Context;

class MoneyExtension implements Extension, FunctionExtension {

    public string $token = "money";

    public string $title = "";

    public string $locale;

    public \NumberFormatter $formatter;

    public function __construct() {
        $this->locale = explode('.', \Locale::getDefault())[0];
        $this->formatter = new \NumberFormatter($this->locale, \NumberFormatter::CURRENCY);
    }

    public function exportFunctions(): array
    {
        return [
            "money" => [ $this, 'money' ]
        ];
    }

    public function parse(\Picea\Compiler\Context &$context, ?string $arguments, string $token) {
        return "<?php echo money($arguments) ?>";
    }

    public function money(float $money, ? string $currency = null) /* : string|false */
    {
        $this->formatter->setTextAttribute(\NumberFormatter::CURRENCY_CODE, 'CAD');

        $this->formatter->setPattern( str_replace('¤#','¤ #', $this->formatter->getPattern() ) );

        return $this->formatter->formatCurrency($money, $currency ?? $this->formatter->getTextAttribute(\NumberFormatter::CURRENCY_CODE));
    }

}