<?php

declare(strict_types=1);

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

use InvalidArgumentException;
use LIT\MCP\Integrations\Divi\Design\DesignSystem;
use LIT\MCP\Tests\Support\DiviFixtures;
use PHPUnit\Framework\TestCase;

final class DesignSystemTest extends TestCase
{
    public function testReadsColorsVariablesFontsSizesAndPresets(): void
    {
        $design = DiviFixtures::designSystem();

        self::assertSame(
            ['id' => 'gcid-a1b2', 'label' => 'Nachtblau', 'value' => '#0b3d59'],
            $design->colors()[2]
        );
        self::assertCount(3, $design->colors());
        self::assertSame(['heading' => 'Open Sans', 'body' => 'Lato'], $design->fonts());
        self::assertSame(
            [['id' => 'gvid-r1', 'type' => 'numbers', 'label' => 'Radius', 'value' => '8px'],
                ['id' => 'gvid-s1', 'type' => 'strings', 'label' => 'Telefon', 'value' => '0221 123']],
            $design->variables()
        );
        self::assertSame('16', $design->sizes()['body_font_size']);
        self::assertSame('30', $design->sizes()['body_header_size']);
        self::assertSame(
            ['kind' => 'module', 'module' => 'divi/button', 'id' => 'p-1', 'name' => 'Standard', 'default' => true],
            $design->presets()[0]
        );
        self::assertSame(['p-1' => 'Standard', 'p-2' => 'CTA primär', 'g-1' => 'Fließtext groß'], $design->presetNames());
    }

    /** The name lists VariableRef/DynamicContentRules check references against (H3: one place). */
    public function testReferenceNameLists(): void
    {
        $design = new DesignSystem(
            [['id' => 'gcid-a', 'label' => 'A', 'value' => '#000']],
            [
                ['id' => 'gvid-c', 'type' => 'colors', 'label' => 'C', 'value' => '#fff'],
                ['id' => 'gvid-t', 'type' => 'strings', 'label' => 'T', 'value' => 'x'],
            ],
            [],
            ['heading' => '', 'body' => ''],
            []
        );

        self::assertSame(['gcid-a', 'gvid-c'], $design->colorReferenceIds());
        self::assertSame(['--et_global_heading_font', '--et_global_body_font', 'gvid-t'], $design->contentVariableIds());
        self::assertTrue($design->isColorVariable('gvid-c'));
        self::assertFalse($design->isColorVariable('gvid-t'));
        self::assertFalse($design->isColorVariable('gcid-a'));
    }

    public function testLabelLookupsRefuseAmbiguousLabels(): void
    {
        $design = new DesignSystem(
            [['id' => 'gcid-a', 'label' => 'Blau', 'value' => '#00f'], ['id' => 'gcid-b', 'label' => 'blau', 'value' => '#00e']],
            [],
            [],
            ['heading' => '', 'body' => ''],
            []
        );

        self::assertSame('gcid-b', $design->colorIdFor('gcid-b'));
        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('Name der globale Farbe "Blau" ist mehrdeutig; bitte die ID angeben: gcid-a, gcid-b.');
        $design->colorIdFor('Blau');
    }

    public function testLooksUpByAliasLabelOrId(): void
    {
        $design = DiviFixtures::designSystem();

        self::assertSame('gcid-primary-color', $design->colorIdFor('primary'));
        self::assertSame('gcid-a1b2', $design->colorIdFor('nachtblau'));
        self::assertSame('gcid-a1b2', $design->colorIdFor('gcid-a1b2'));
        self::assertNull($design->colorIdFor('secondary'));
        self::assertNull($design->colorIdFor('Alt'));
        self::assertSame('gvid-s1', $design->variableFor('telefon'));
        self::assertSame('p-2', $design->modulePresetId('divi/button', 'cta PRIMÄR'));
        self::assertNull($design->modulePresetId('divi/text', 'Standard'));
        self::assertSame(['Standard', 'CTA primär'], $design->modulePresetNames('divi/button'));
        self::assertSame('{{color:primary}}', DesignSystem::colorPlaceholder('gcid-primary-color', 'Primärfarbe'));
        self::assertSame('{{color:Nachtblau}}', DesignSystem::colorPlaceholder('gcid-a1b2', 'Nachtblau'));
    }

    /** Ruling S13a/S34: a preset name several presets of the module share fails with their ids. */
    public function testAmbiguousPresetNamesFail(): void
    {
        $design = DesignSystem::fromDivi([], [], ['module' => ['divi/button' => ['default' => 'p-1', 'items' => [
            'p-1' => ['id' => 'p-1', 'name' => 'Standard', 'moduleName' => 'divi/button'],
            'p-3' => ['id' => 'p-3', 'name' => 'standard', 'moduleName' => 'divi/button'],
        ]]]], []);

        self::assertSame('p-3', $design->modulePresetId('divi/button', 'p-3'));
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('p-1, p-3');
        $design->modulePresetId('divi/button', 'STANDARD');
    }

    public function testToleratesEmptyOrOddInput(): void
    {
        $design = DesignSystem::fromDivi([], ['fonts' => 'x'], ['module' => 'y'], []);

        self::assertSame([], $design->colors());
        self::assertSame(['heading' => '', 'body' => ''], $design->fonts());
        self::assertSame([], $design->presets());
        self::assertSame('14', $design->sizes()['body_font_size']);
    }
}