<?php
namespace PhpUnitsOfMeasure\PhysicalQuantity;

use PhpUnitsOfMeasure\AbstractPhysicalQuantity;
use PhpUnitsOfMeasure\UnitOfMeasure;
use PhpUnitsOfMeasure\HasSIUnitsTrait;

class Length extends AbstractPhysicalQuantity
{
    use HasSIUnitsTrait;

    protected static $unitDefinitions;

    protected static function initialize()
    {
        // Meter
        $meter = UnitOfMeasure::nativeUnitFactory('m');
        $meter->addAlias('meter');
        $meter->addAlias('meters');
        $meter->addAlias('metre');
        $meter->addAlias('metres');
        static::addUnit($meter);

        static::addMissingSIPrefixedUnits(
            $meter,
            1,
            '%pm',
            [
                '%Pmeter',
                '%Pmeters',
                '%Pmetre',
                '%Pmetres'
            ]
        );

        // Foot
        $newUnit = UnitOfMeasure::linearUnitFactory('ft', 0.3048);
        $newUnit->addAlias('foot');
        $newUnit->addAlias('feet');
        static::addUnit($newUnit);

        // Inch
        $newUnit = UnitOfMeasure::linearUnitFactory('in', 0.0254);
        $newUnit->addAlias('inch');
        $newUnit->addAlias('inches');
        static::addUnit($newUnit);

        // Mile
        $newUnit = UnitOfMeasure::linearUnitFactory('mi', 1609.344);
        $newUnit->addAlias('mile');
        $newUnit->addAlias('miles');
        static::addUnit($newUnit);

        // Yard
        $newUnit = UnitOfMeasure::linearUnitFactory('yd', 0.9144);
        $newUnit->addAlias('yard');
        $newUnit->addAlias('yards');
        static::addUnit($newUnit);

        // Nautical mile
        $newUnit = UnitOfMeasure::linearUnitFactory('M', 1852);
        $newUnit->addAlias('nautical mile');
        $newUnit->addAlias('nautical miles');
        $newUnit->addAlias('nmi');
        $newUnit->addAlias('NM');
        static::addUnit($newUnit);

        // Scandinavian mil
        $newUnit = UnitOfMeasure::linearUnitFactory('mil', 10000);
        static::addUnit($newUnit);

        // Astronomical Unit
        $newUnit = UnitOfMeasure::linearUnitFactory('AU', 149597870700);
        $newUnit->addAlias('au');
        $newUnit->addAlias('astronomical unit');
        $newUnit->addAlias('astronomical units');
        static::addUnit($newUnit);

        // Light Year
        $newUnit = UnitOfMeasure::linearUnitFactory('ly', 9460730472580800);
        $newUnit->addAlias('LY');
        $newUnit->addAlias('light year');
        $newUnit->addAlias('light years');
        static::addUnit($newUnit);

        // Light Year
        $parsec = UnitOfMeasure::linearUnitFactory('pc', 3.085677581491367279E+16); // parsec == au * 648000 / pi (30856775814913672.789139379577965)
        $parsec->addAlias('parsec');
        $parsec->addAlias('parsecs');
        static::addUnit($parsec);

        static::addMissingSIPrefixedUnits(
            $parsec,
            1,
            '%ppc',
            [
                '%Pparsec',
                '%Pparsecs'
            ]
        );
    }
}