<?php

namespace Spatie\EloquentSortable\Test;

use Illuminate\Support\Collection;

class SortableTest extends TestCase
{
    /** @test */
    public function it_sets_the_order_column_on_creation()
    {
        foreach (Dummy::all() as $dummy) {
            $this->assertEquals($dummy->name, $dummy->order_column);
        }
    }

    /** @test */
    public function it_can_get_the_highest_order_number()
    {
        $this->assertEquals(Dummy::all()->count(), (new Dummy())->getHighestOrderNumber());
    }

    /** @test */
    public function it_can_get_the_highest_order_number_with_trashed_models()
    {
        $this->setUpSoftDeletes();

        DummyWithSoftDeletes::first()->delete();

        $this->assertEquals(DummyWithSoftDeletes::withTrashed()->count(), (new DummyWithSoftDeletes())->getHighestOrderNumber());
    }

    /** @test */
    public function it_can_set_a_new_order()
    {
        $newOrder = Collection::make(Dummy::all()->pluck('id'))->shuffle()->toArray();

        Dummy::setNewOrder($newOrder);

        foreach (Dummy::orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->id);
        }
    }

    /** @test */
    public function it_can_set_a_new_order_by_custom_column()
    {
        $newOrder = Collection::make(Dummy::all()->pluck('custom_column_sort'))->shuffle()->toArray();

        Dummy::setNewOrderByCustomColumn('custom_column_sort', $newOrder);

        foreach (Dummy::orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->custom_column_sort);
        }
    }

    /** @test */
    public function it_can_set_a_new_order_from_collection()
    {
        $newOrder = Collection::make(Dummy::all()->pluck('id'))->shuffle();

        Dummy::setNewOrder($newOrder);

        foreach (Dummy::orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->id);
        }
    }

    /** @test */
    public function it_can_set_a_new_order_by_custom_column_from_collection()
    {
        $newOrder = Collection::make(Dummy::all()->pluck('custom_column_sort'))->shuffle();

        Dummy::setNewOrderByCustomColumn('custom_column_sort', $newOrder);

        foreach (Dummy::orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->custom_column_sort);
        }
    }

    /** @test */
    public function it_can_set_a_new_order_with_trashed_models()
    {
        $this->setUpSoftDeletes();

        $dummies = DummyWithSoftDeletes::all();

        $dummies->random()->delete();

        $newOrder = Collection::make($dummies->pluck('id'))->shuffle();

        DummyWithSoftDeletes::setNewOrder($newOrder);

        foreach (DummyWithSoftDeletes::withTrashed()->orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->id);
        }
    }

    /** @test */
    public function it_can_set_a_new_order_by_custom_column_with_trashed_models()
    {
        $this->setUpSoftDeletes();

        $dummies = DummyWithSoftDeletes::all();

        $dummies->random()->delete();

        $newOrder = Collection::make($dummies->pluck('custom_column_sort'))->shuffle();

        DummyWithSoftDeletes::setNewOrderByCustomColumn('custom_column_sort', $newOrder);

        foreach (DummyWithSoftDeletes::withTrashed()->orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->custom_column_sort);
        }
    }

    /** @test */
    public function it_can_set_a_new_order_without_trashed_models()
    {
        $this->setUpSoftDeletes();

        DummyWithSoftDeletes::first()->delete();

        $newOrder = Collection::make(DummyWithSoftDeletes::pluck('id'))->shuffle();

        DummyWithSoftDeletes::setNewOrder($newOrder);

        foreach (DummyWithSoftDeletes::orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->id);
        }
    }

    /** @test */
    public function it_can_set_a_new_order_by_custom_column_without_trashed_models()
    {
        $this->setUpSoftDeletes();

        DummyWithSoftDeletes::first()->delete();

        $newOrder = Collection::make(DummyWithSoftDeletes::pluck('custom_column_sort'))->shuffle();

        DummyWithSoftDeletes::setNewOrderByCustomColumn('custom_column_sort', $newOrder);

        foreach (DummyWithSoftDeletes::orderBy('order_column')->get() as $i => $dummy) {
            $this->assertEquals($newOrder[$i], $dummy->custom_column_sort);
        }
    }

    /** @test */
    public function it_will_determine_to_sort_when_creating_if_sortable_attribute_does_not_exist()
    {
        $model = new Dummy();

        $this->assertTrue($model->shouldSortWhenCreating());
    }

    /** @test */
    public function it_will_determine_to_sort_when_creating_if_sort_when_creating_setting_does_not_exist()
    {
        $model = new class () extends Dummy {
            public $sortable = [];
        };

        $this->assertTrue($model->shouldSortWhenCreating());
    }

    /** @test */
    public function it_will_respect_the_sort_when_creating_setting()
    {
        $model = new class () extends Dummy {
            public $sortable = ['sort_when_creating' => true];
        };

        $this->assertTrue($model->shouldSortWhenCreating());

        $model = new class () extends Dummy {
            public $sortable = ['sort_when_creating' => false];
        };
        $this->assertFalse($model->shouldSortWhenCreating());
    }

    /** @test */
    public function it_provides_an_ordered_trait()
    {
        $i = 1;

        foreach (Dummy::ordered()->get()->pluck('order_column') as $order) {
            $this->assertEquals($i++, $order);
        }
    }

    /** @test */
    public function it_can_move_the_order_down()
    {
        $firstModel = Dummy::find(3);
        $secondModel = Dummy::find(4);

        $this->assertEquals($firstModel->order_column, 3);
        $this->assertEquals($secondModel->order_column, 4);

        $this->assertNotFalse($firstModel->moveOrderDown());

        $firstModel = Dummy::find(3);
        $secondModel = Dummy::find(4);

        $this->assertEquals($firstModel->order_column, 4);
        $this->assertEquals($secondModel->order_column, 3);
    }

    /** @test */
    public function it_will_not_fail_when_it_cant_move_the_order_down()
    {
        $lastModel = Dummy::all()->last();

        $this->assertEquals($lastModel->order_column, 20);
        $this->assertEquals($lastModel, $lastModel->moveOrderDown());
    }

    /** @test */
    public function it_can_move_the_order_up()
    {
        $firstModel = Dummy::find(3);
        $secondModel = Dummy::find(4);

        $this->assertEquals($firstModel->order_column, 3);
        $this->assertEquals($secondModel->order_column, 4);

        $this->assertNotFalse($secondModel->moveOrderUp());

        $firstModel = Dummy::find(3);
        $secondModel = Dummy::find(4);

        $this->assertEquals($firstModel->order_column, 4);
        $this->assertEquals($secondModel->order_column, 3);
    }

    /** @test */
    public function it_will_not_break_when_it_cant_move_the_order_up()
    {
        $lastModel = Dummy::first();

        $this->assertEquals($lastModel->order_column, 1);
        $this->assertEquals($lastModel, $lastModel->moveOrderUp());
    }

    /** @test */
    public function it_can_swap_the_position_of_two_given_models()
    {
        $firstModel = Dummy::find(3);
        $secondModel = Dummy::find(4);

        $this->assertEquals($firstModel->order_column, 3);
        $this->assertEquals($secondModel->order_column, 4);

        Dummy::swapOrder($firstModel, $secondModel);

        $this->assertEquals($firstModel->order_column, 4);
        $this->assertEquals($secondModel->order_column, 3);
    }

    /** @test */
    public function it_can_swap_itself_with_another_model()
    {
        $firstModel = Dummy::find(3);
        $secondModel = Dummy::find(4);

        $this->assertEquals($firstModel->order_column, 3);
        $this->assertEquals($secondModel->order_column, 4);

        $firstModel->swapOrderWithModel($secondModel);

        $this->assertEquals($firstModel->order_column, 4);
        $this->assertEquals($secondModel->order_column, 3);
    }

    /** @test */
    public function it_can_move_a_model_to_the_first_place()
    {
        $position = 3;

        $oldModels = Dummy::whereNot('id', $position)->get();

        $model = Dummy::find($position);

        $this->assertEquals(3, $model->order_column);

        $model = $model->moveToStart();

        $this->assertEquals(1, $model->order_column);

        $oldModels = $oldModels->pluck('order_column', 'id');
        $newModels = Dummy::whereNot('id', $position)->get()->pluck('order_column', 'id');

        foreach ($oldModels as $key => $oldModel) {
            $this->assertEquals($oldModel + 1, $newModels[$key]);
        }
    }

    /**
     * @test
     */
    public function it_can_move_a_model_to_the_last_place()
    {
        $position = 3;

        $oldModels = Dummy::whereNot('id', $position)->get();

        $model = Dummy::find($position);

        $this->assertNotEquals(20, $model->order_column);

        $model = $model->moveToEnd();

        $this->assertEquals(20, $model->order_column);

        $oldModels = $oldModels->pluck('order_column', 'id');

        $newModels = Dummy::whereNot('id', $position)->get()->pluck('order_column', 'id');

        foreach ($oldModels as $key => $order) {
            if ($order > $position) {
                $this->assertEquals($order - 1, $newModels[$key]);
            } else {
                $this->assertEquals($order, $newModels[$key]);
            }
        }
    }

    /** @test */
    public function it_can_use_config_properties()
    {
        config([
        'eloquent-sortable.order_column_name' => 'order_column',
        'eloquent-sortable.sort_when_creating' => true,
      ]);

        $model = new class () extends Dummy {
            public $sortable = [];
        };

        $this->assertEquals(config('eloquent-sortable.order_column_name'), $model->determineOrderColumnName());
        $this->assertEquals(config('eloquent-sortable.sort_when_creating'), $model->shouldSortWhenCreating());
    }

    /** @test */
    public function it_can_override_config_properties()
    {
        $model = new class () extends Dummy {
            public $sortable = [
            'order_column_name' => 'my_custom_order_column',
            'sort_when_creating' => false,
          ];
        };

        $this->assertEquals($model->determineOrderColumnName(), 'my_custom_order_column');
        $this->assertFalse($model->shouldSortWhenCreating());
    }

    /** @test */
    public function it_can_tell_if_element_is_first_in_order()
    {
        $model = (new Dummy())->buildSortQuery()->get();
        $this->assertTrue($model[0]->isFirstInOrder());
        $this->assertFalse($model[1]->isFirstInOrder());
    }

    /** @test */
    public function it_can_tell_if_element_is_last_in_order()
    {
        $model = (new Dummy())->buildSortQuery()->get();
        $this->assertTrue($model[$model->count() - 1]->isLastInOrder());
        $this->assertFalse($model[$model->count() - 2]->isLastInOrder());
    }
}