<?php

declare(strict_types=1);

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

use LIT\MCP\Integrations\Divi\Design\CustomCssArea;
use LIT\MCP\Integrations\Divi\Release\DiviFeature;
use LIT\MCP\Tests\Support\FakeCustomCssStore;
use PHPUnit\Framework\TestCase;
use RuntimeException;

final class CustomCssAreaTest extends TestCase
{
    public function testNamesTheAreaAndTheDiviFeatureItNeeds(): void
    {
        $area = new CustomCssArea(new FakeCustomCssStore());

        self::assertSame('custom_css', $area->name());
        self::assertSame('Eigenes CSS', $area->label());
        self::assertSame(DiviFeature::ThemeOptionWrite, $area->feature());
    }

    public function testRawIsTheStoredTextWithItsTheme(): void
    {
        $area = new CustomCssArea(new FakeCustomCssStore('.x{}', 'Child'));

        self::assertSame(['stylesheet' => 'Child', 'css' => '.x{}'], $area->raw());
    }

    public function testTheRevCoversTextAndTheme(): void
    {
        $area = new CustomCssArea(new FakeCustomCssStore());
        $rev = $area->rev(['stylesheet' => 'Divi', 'css' => '.a{}']);

        self::assertSame($rev, $area->rev(['stylesheet' => 'Divi', 'css' => '.a{}']));
        self::assertNotSame($rev, $area->rev(['stylesheet' => 'Divi', 'css' => '.b{}']));
        self::assertNotSame($rev, $area->rev(['stylesheet' => 'Child', 'css' => '.a{}']), 'a theme switch is a change');
    }

    public function testWriteReplacesTheTextAndReturnsWhatWasReadBack(): void
    {
        $store = new FakeCustomCssStore('.old{}');
        $area = new CustomCssArea($store);

        $back = $area->write(['stylesheet' => 'Divi', 'css' => '.new{}'], false);

        self::assertSame(['.new{}'], $store->writes);
        self::assertSame(['stylesheet' => 'Divi', 'css' => '.new{}'], $back);
    }

    public function testRestoreWritesTheSnapshotTextBack(): void
    {
        $store = new FakeCustomCssStore('.changed{}');

        $back = (new CustomCssArea($store))->restore(['stylesheet' => 'Divi', 'css' => '.old{}']);

        self::assertSame('.old{}', $back['css']);
        self::assertSame(['.old{}'], $store->writes);
    }

    public function testAFailingWriteThrows(): void
    {
        $this->expectException(RuntimeException::class);

        (new CustomCssArea(new FakeCustomCssStore(refuse: true)))->write(['css' => '.a{}'], false);
    }

    public function testVerifyInsistsOnTheExactText(): void
    {
        $area = new CustomCssArea(new FakeCustomCssStore());

        self::assertTrue($area->verify(['css' => '.a{}'], ['stylesheet' => 'Divi', 'css' => '.a{}']));
        self::assertFalse($area->verify(['css' => '.a>b{}'], ['css' => '.a&gt;b{}']), 'a stripped or escaped text is no success');
        self::assertSame([], $area->differences(['css' => 'a'], ['css' => 'b']));
    }
}