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<?php |
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namespace CfdiUtils\Utils; |
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class CurrencyDecimals |
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{ |
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/** @var string */ |
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private $currency; |
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/** @var int */ |
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private $decimals; |
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public function __construct(string $currency, int $decimals) |
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{ |
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if (! preg_match('/^[A-Z]{3}$/', $currency)) { |
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throw new \UnexpectedValueException('Property currency is not valid'); |
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} |
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if ($decimals < 0) { |
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throw new \UnexpectedValueException('Property decimals cannot be less than zero'); |
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} |
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$this->currency = $currency; |
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$this->decimals = $decimals; |
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} |
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public function currency(): string |
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{ |
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return $this->currency; |
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} |
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public function decimals(): int |
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{ |
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return $this->decimals; |
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} |
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public function round(float $value): float |
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{ |
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return round($value, $this->decimals()); |
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} |
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public function doesNotExceedDecimals(string $value): bool |
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{ |
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// use pathinfo trick to retrieve the right part after the dot |
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return ($this->decimalsCount($value) <= $this->decimals()); |
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} |
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public static function decimalsCount(string $value): int |
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{ |
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return strlen(pathinfo($value, PATHINFO_EXTENSION)); |
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} |
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public static function newFromKnownCurrencies(string $currency, int $default = null): self |
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{ |
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$decimals = static::knownCurrencyDecimals($currency); |
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if ($decimals < 0) { |
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if (null === $default) { |
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throw new \OutOfBoundsException('The currency %s is not known'); |
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} |
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$decimals = $default; |
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} |
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return new self($currency, $decimals); |
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} |
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public static function knownCurrencyDecimals(string $currency): int |
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{ |
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$map = [ |
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'MXN' => 2, |
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'EUR' => 2, |
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'USD' => 2, |
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'XXX' => 0, |
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]; |
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return array_key_exists($currency, $map) ? $map[$currency] : -1; |
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} |
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} |
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eclipxe13 /
CfdiUtils
