<?php

namespace Specification\Akeneo\Pim\Structure\Component\Model;

use Akeneo\Pim\Structure\Component\Model\Attribute;
use Akeneo\Pim\Structure\Component\Model\AttributeInterface;
use Akeneo\Pim\Structure\Component\Model\CommonAttributeCollection;
use Akeneo\Pim\Structure\Component\Model\Family;
use Akeneo\Pim\Structure\Component\Model\FamilyInterface;
use Akeneo\Pim\Structure\Component\Model\FamilyVariant;
use Akeneo\Pim\Structure\Component\Model\FamilyVariantInterface;
use Akeneo\Pim\Structure\Component\Model\VariantAttributeSet;
use Akeneo\Pim\Structure\Component\Model\VariantAttributeSetInterface;
use Akeneo\Tool\Component\Localization\Model\TranslatableInterface;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use PhpSpec\ObjectBehavior;

class FamilyVariantSpec extends ObjectBehavior
{
    function it_is_initializable()
    {
        $this->shouldHaveType(FamilyVariant::class);
    }

    function it_is_a_family_variant()
    {
        $this->shouldImplement(FamilyVariantInterface::class);
    }

    function its_code_is_translatable()
    {
        $this->shouldImplement(TranslatableInterface::class);
    }

    function it_gets_common_attribute_set(
        VariantAttributeSetInterface $variantAttributeSet1,
        VariantAttributeSetInterface $variantAttributeSet2,
        FamilyInterface $family,
        Collection $familyAttributes,
        AttributeInterface $name,
        AttributeInterface $color,
        AttributeInterface $size,
        Collection $axes1,
        Collection $axes2,
        Collection $attribute1,
        Collection $attribute2,
    ) {
        $iterator = new \ArrayIterator();
        $this->addVariantAttributeSet($variantAttributeSet1);
        $this->addVariantAttributeSet($variantAttributeSet2);
        $this->setFamily($family);

        $family->getAttributes()->willReturn($familyAttributes);
        $familyAttributes->toArray()->willReturn([$name, $color, $size]);

        $axes1->getIterator()->willReturn($iterator);
        $variantAttributeSet1->getAxes()->willReturn($axes1);
        $attribute1->getIterator()->willReturn($iterator);
        $variantAttributeSet1->getAttributes()->willReturn($attribute1);
        $variantAttributeSet1->getLevel()->willReturn(1);

        $axes2->getIterator()->willReturn($iterator);
        $variantAttributeSet2->getAxes()->willReturn($axes2);

        $attribute2->getIterator()->willReturn($iterator);
        $variantAttributeSet2->getAttributes()->willReturn($attribute2);
        $variantAttributeSet2->getLevel()->willReturn(2);

        $this->getCommonAttributes()->shouldHaveType(CommonAttributeCollection::class);
    }

    function it_adds_variant_attribute_set(
        VariantAttributeSetInterface $variantAttributeSet1,
        VariantAttributeSetInterface $variantAttributeSet2
    ) {
        $variantAttributeSet1->getLevel()->willReturn(1);
        $variantAttributeSet2->getLevel()->willReturn(2);

        $this->addVariantAttributeSet($variantAttributeSet1)->shouldReturn(null);
        $this->addVariantAttributeSet($variantAttributeSet2)->shouldReturn(null);

        $this->getVariantAttributeSet(1)->shouldReturn($variantAttributeSet1);
        $this->getVariantAttributeSet(2)->shouldReturn($variantAttributeSet2);
    }

    function it_has_axes(
        VariantAttributeSetInterface $variantAttributeSet1,
        VariantAttributeSetInterface $variantAttributeSet2,
        ArrayCollection $axes1,
        ArrayCollection $axes2,
        AttributeInterface $color,
        AttributeInterface $size
    ) {
        $this->addVariantAttributeSet($variantAttributeSet1);
        $this->addVariantAttributeSet($variantAttributeSet2);

        $variantAttributeSet1->getAxes()->willReturn($axes1);
        $variantAttributeSet2->getAxes()->willReturn($axes2);

        $axes1->toArray()->willReturn([$color]);
        $axes2->toArray()->willReturn([$size]);

        $axes = $this->getAxes();
        $axes->shouldHaveType(ArrayCollection::class);
        $axes->toArray([$color, $size]);
    }

    function it_has_attributes(
        VariantAttributeSetInterface $commonAttributeSet,
        VariantAttributeSetInterface $variantAttributeSet1,
        VariantAttributeSetInterface $variantAttributeSet2,
        ArrayCollection $commonAttributes,
        ArrayCollection $attributes1,
        ArrayCollection $attributes2,
        AttributeInterface $name,
        AttributeInterface $color,
        AttributeInterface $size
    ) {
        $this->addVariantAttributeSet($variantAttributeSet1);
        $this->addVariantAttributeSet($variantAttributeSet2);

        $commonAttributeSet->getAttributes()->willReturn($commonAttributes);
        $variantAttributeSet1->getAttributes()->willReturn($attributes1);
        $variantAttributeSet2->getAttributes()->willReturn($attributes2);

        $commonAttributes->toArray()->willReturn([$name]);
        $attributes1->toArray()->willReturn([$color]);
        $attributes2->toArray()->willReturn([$size]);

        $axes = $this->getAttributes();
        $axes->shouldHaveType(ArrayCollection::class);
        $axes->toArray([$color, $size]);
    }

    function it_throws_an_exception_if_variant_attribute_set_index_is_invalid()
    {
        $this->shouldThrow(\InvalidArgumentException::class)->during('getVariantAttributeSet', [
            0,
        ]);
    }

    function it_throws_an_exception_if_family_variant_does_not_contain_asked_attribute_code()
    {
        $attribute = new Attribute();
        $attribute->setCode('name');

        $family = new Family();
        $family->addAttribute($attribute);
        $this->setFamily($family);

        $this->shouldThrow(\InvalidArgumentException::class)->during('getLevelForAttributeCode', ['description']);
    }

    function it_gets_the_attribute_set_level_for_provided_attribute_code()
    {
        $name = new Attribute();
        $name->setCode('name');

        $variantAttributeSet = new VariantAttributeSet();
        $variantAttributeSet->addAttribute($name);
        $variantAttributeSet->setLevel(1);

        $family = new Family();
        $family->addAttribute($name);
        $this->setFamily($family);
        $this->addVariantAttributeSet($variantAttributeSet);

        $this->getLevelForAttributeCode('name')->shouldReturn(1);
    }

    function it_gets_the_attribute_set_level_for_provided_axis_code()
    {
        $color = new Attribute();
        $color->setCode('color');

        $variantAttributeSet = new VariantAttributeSet();
        $variantAttributeSet->setAxes([$color]);
        $variantAttributeSet->setLevel(1);

        $family = new Family();
        $family->addAttribute($color);
        $this->setFamily($family);
        $this->addVariantAttributeSet($variantAttributeSet);

        $this->getLevelForAttributeCode('color')->shouldReturn(1);
    }

    function it_gets_the_attribute_set_level_for_provided_common_attribute_code()
    {
        $color = new Attribute();
        $color->setCode('color');

        $name = new Attribute();
        $name->setCode('name');

        $variantAttributeSet = new VariantAttributeSet();
        $variantAttributeSet->setAxes([$color]);
        $variantAttributeSet->setLevel(1);

        $family = new Family();
        $family->addAttribute($color);
        $family->addAttribute($name);
        $this->setFamily($family);
        $this->addVariantAttributeSet($variantAttributeSet);

        $this->getLevelForAttributeCode('name')->shouldReturn(0);
    }

    function it_updates_axes_for_level()
    {
        $this->getVariantAttributeSet(1)->shouldReturn(null);

        $color = new Attribute();
        $color->setId(1);
        $size = new Attribute();
        $size->setId(2);
        $this->updateAxesForLevel(1, [$color, $size]);

        $variantAttributeSet = $this->getVariantAttributeSet(1);
        $variantAttributeSet->shouldHaveType(VariantAttributeSet::class);
        $variantAttributeSet->getLevel()->shouldBe(1);
        $variantAttributeSet->getAxes()->toArray()->shouldBe([$color, $size]);

        $other = new Attribute();
        $other->setId(1);
        $this->updateAxesForLevel(1, [$other]);
        $variantAttributeSet = $this->getVariantAttributeSet(1);
        $variantAttributeSet->shouldHaveType(VariantAttributeSet::class);
        $variantAttributeSet->getLevel()->shouldBe(1);
        $variantAttributeSet->getAxes()->toArray()->shouldBe([$other]);
    }

    function it_can_updates_axes_for_level_only_with_attributes()
    {
        $this->shouldThrow(\InvalidArgumentException::class)->during('updateAxesForLevel', [1, ['color']]);
    }

    function it_updates_attributes_for_level()
    {
        $this->getVariantAttributeSet(1)->shouldReturn(null);

        $color = new Attribute();
        $color->setId(1);
        $size = new Attribute();
        $size->setId(2);
        $this->updateAttributesForLevel(1, [$color, $size]);

        $variantAttributeSet = $this->getVariantAttributeSet(1);
        $variantAttributeSet->shouldHaveType(VariantAttributeSet::class);
        $variantAttributeSet->getLevel()->shouldBe(1);
        $variantAttributeSet->getAttributes()->toArray()->shouldBe([$color, $size]);

        $other = new Attribute();
        $other->setId(1);
        $this->updateAttributesForLevel(1, [$other]);
        $variantAttributeSet = $this->getVariantAttributeSet(1);
        $variantAttributeSet->shouldHaveType(VariantAttributeSet::class);
        $variantAttributeSet->getLevel()->shouldBe(1);
        $variantAttributeSet->getAttributes()->toArray()->shouldBe([$other]);
    }

    function it_can_updates_attributes_for_level_only_with_attributes()
    {
        $this->shouldThrow(\InvalidArgumentException::class)->during('updateAttributesForLevel', [1, ['color']]);
    }

    function it_returns_events_when_axes_are_updated()
    {
        $this->releaseEvents()->shouldReturn([]);

        $color = new Attribute();
        $color->setId(1);
        $this->updateAxesForLevel(1, [$color]);
        $this->releaseEvents()->shouldReturn([FamilyVariantInterface::AXES_WERE_UPDATED_ON_LEVEL]);
        $this->releaseEvents()->shouldReturn([]);

        $this->updateAxesForLevel(1, [$color]);
        $this->releaseEvents()->shouldReturn([]);

        $size = new Attribute();
        $size->setId(2);
        $this->updateAxesForLevel(1, [$size]);
        $this->releaseEvents()->shouldReturn([FamilyVariantInterface::AXES_WERE_UPDATED_ON_LEVEL]);
    }

    function it_returns_events_when_attributes_of_level_are_updated()
    {
        $this->releaseEvents()->shouldReturn([]);

        $color = new Attribute();
        $color->setId(1);
        $this->updateAttributesForLevel(1, [$color]);
        $this->releaseEvents()->shouldReturn([FamilyVariantInterface::ATTRIBUTES_WERE_UPDATED_ON_LEVEL]);
        $this->releaseEvents()->shouldReturn([]);

        $this->updateAttributesForLevel(1, [$color]);
        $this->releaseEvents()->shouldReturn([]);

        $size = new Attribute();
        $size->setId(2);
        $this->updateAttributesForLevel(1, [$size]);
        $this->releaseEvents()->shouldReturn([FamilyVariantInterface::ATTRIBUTES_WERE_UPDATED_ON_LEVEL]);
    }
}