<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Integrations\Divi\Release;

use Brain\Monkey\Functions;
use LIT\MCP\Abilities\Ability;
use LIT\MCP\Abilities\DeclaresRequirements;
use LIT\MCP\Integrations\Divi\Release\DiviFeature;
use LIT\MCP\Integrations\Divi\Release\FeatureSets;
use LIT\MCP\Integrations\Divi\Release\RequiresDiviFeatures;
use LIT\MCP\Tests\Unit\TestCase;
use Mockery;

final class FeatureSetsTest extends TestCase
{
    /** @var array<int, string> */
    private array $types = [];

    private bool $mayEdit = true;

    protected function setUp(): void
    {
        parent::setUp();
        Functions\when('get_post_type')->alias(fn (int $id): string|false => $this->types[$id] ?? false);
        Functions\when('current_user_can')->alias(fn (string $capability): bool => $this->mayEdit);
    }

    public function testMergeKeepsEveryFeatureOnceInTheOrderOfItsFirstAppearance(): void
    {
        $merged = FeatureSets::merge(
            [DiviFeature::Catalog, DiviFeature::Roles],
            [],
            [DiviFeature::Roles, DiviFeature::PageRead, DiviFeature::Catalog]
        );

        self::assertSame([DiviFeature::Catalog, DiviFeature::Roles, DiviFeature::PageRead], $merged);
        self::assertSame([], FeatureSets::merge());
    }

    public function testAPageOrPostAddsNothing(): void
    {
        $this->types = [5 => 'page', 6 => 'post', 7 => 'project'];

        foreach ([5, 6, 7, '5'] as $id) {
            self::assertSame([], FeatureSets::ofEntry($id, true), (string) $id);
            self::assertSame([], FeatureSets::ofEntry($id, false), (string) $id);
        }
    }

    public function testAnIdThatNamesNoEntryAddsNothing(): void
    {
        foreach ([null, 0, -3, 'abc', '1.5', [], 404] as $id) {
            self::assertSame([], FeatureSets::ofEntry($id, true), var_export($id, true));
        }
    }

    public function testALibraryEntryNeedsTheRolesAndWritingAlsoTheLibrary(): void
    {
        $this->types = [7 => 'et_pb_layout'];

        self::assertSame([DiviFeature::Roles], FeatureSets::ofEntry(7, false));
        self::assertSame(
            [DiviFeature::Roles, DiviFeature::LibraryRead, DiviFeature::LibraryWrite],
            FeatureSets::ofEntry('7', true)
        );
    }

    public function testEveryThemeBuilderLayoutNeedsTheRolesAndWritingAlsoTheThemeBuilder(): void
    {
        $this->types = [1 => 'et_header_layout', 2 => 'et_body_layout', 3 => 'et_footer_layout'];

        foreach ([1, 2, 3] as $id) {
            self::assertSame([DiviFeature::Roles], FeatureSets::ofEntry($id, false), (string) $id);
            self::assertSame(
                [DiviFeature::Roles, DiviFeature::ThemeBuilderRead, DiviFeature::ThemeBuilderWrite],
                FeatureSets::ofEntry($id, true),
                (string) $id
            );
        }
    }

    public function testAnEntryTheCallerMayNotEditAddsNothingSoALockNeverNamesItsKind(): void
    {
        $this->types = [7 => 'et_pb_layout', 9 => 'et_body_layout'];
        $this->mayEdit = false;

        foreach ([7, 9] as $id) {
            self::assertSame([], FeatureSets::ofEntry($id, true), (string) $id);
            self::assertSame([], FeatureSets::ofEntry($id, false), (string) $id);
        }
    }

    public function testTemplatesAndThemeBuilderPostsAreNoLayouts(): void
    {
        $this->types = [1 => 'et_template', 2 => 'et_theme_builder'];

        self::assertSame([], FeatureSets::ofEntry(1, true));
        self::assertSame([], FeatureSets::ofEntry(2, true));
    }

    public function testDeclaredByReadsTheDiviToolsOwnList(): void
    {
        $tool = Mockery::mock(Ability::class, RequiresDiviFeatures::class);
        $tool->expects('diviFeatures')->with(['a' => 1])->andReturn([DiviFeature::Roles, DiviFeature::Roles]);

        self::assertSame([DiviFeature::Roles], FeatureSets::declaredBy($tool, ['a' => 1]));
    }

    public function testDeclaredByTranslatesTheIdsOfACoreTool(): void
    {
        $tool = Mockery::mock(Ability::class, DeclaresRequirements::class);
        $tool->expects('requirements')->with(['divi' => []])->andReturn(['page-write', 'catalog']);

        self::assertSame(
            [DiviFeature::PageWrite, DiviFeature::Catalog],
            FeatureSets::declaredBy($tool, ['divi' => []])
        );
    }

    public function testDeclaredByIgnoresIdsThatAreNoDiviFeature(): void
    {
        $tool = Mockery::mock(Ability::class, DeclaresRequirements::class);
        $tool->allows('requirements')->andReturn(['pods-field-read', 'page-write']);

        self::assertSame([DiviFeature::PageWrite], FeatureSets::declaredBy($tool, ['divi' => []]));
    }

    public function testDeclaredByIsEmptyForAnyOtherTool(): void
    {
        self::assertSame([], FeatureSets::declaredBy(Mockery::mock(Ability::class), ['x' => 1]));
    }
}