<?php

declare(strict_types=1);

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

use LIT\MCP\Integrations\Divi\Design\DesignSystem;
use PHPUnit\Framework\TestCase;

final class DesignSystemTest extends TestCase
{
    /** Shapes as GlobalData / GlobalPreset return them (Divi 5.2.1, verified in DDEV). */
    public static function sample(): DesignSystem
    {
        return DesignSystem::fromDivi(
            [
                'gcid-primary-color' => ['color' => '#2ea3f2', 'label' => 'Primärfarbe', 'status' => 'active'],
                'gcid-body-color' => ['color' => '#666666', 'label' => 'Fließtextfarbe', 'status' => 'active'],
                'gcid-a1b2' => ['color' => '#0b3d59', 'label' => 'Nachtblau', 'status' => 'active'],
                'gcid-old' => ['color' => '#ff0000', 'label' => 'Alt', 'status' => 'inactive'],
            ],
            [
                'numbers' => ['gvid-r1' => ['id' => 'gvid-r1', 'label' => 'Radius', 'value' => '8px', 'status' => 'active']],
                'strings' => ['gvid-s1' => ['id' => 'gvid-s1', 'label' => 'Telefon', 'value' => '0221 123', 'status' => 'active']],
                // Divi returns every variable type as stdClass (verified in DDEV).
                'fonts' => (object) [
                    '--et_global_heading_font' => ['id' => '--et_global_heading_font', 'label' => 'Überschrift', 'value' => 'Open Sans', 'status' => 'active'],
                    '--et_global_body_font' => ['id' => '--et_global_body_font', 'label' => 'Fließtext', 'value' => 'Lato', 'status' => 'active'],
                ],
                'links' => new \stdClass(),
            ],
            [
                'module' => ['divi/button' => ['default' => 'p-1', 'items' => [
                    'p-1' => ['id' => 'p-1', 'name' => 'Standard', 'moduleName' => 'divi/button'],
                    'p-2' => ['id' => 'p-2', 'name' => 'CTA primär', 'moduleName' => 'divi/button'],
                ]]],
                'group' => ['divi/font' => ['default' => '', 'items' => [
                    'g-1' => ['id' => 'g-1', 'name' => 'Fließtext groß', 'groupName' => 'divi/font'],
                ]]],
            ],
            ['body_font_size' => '16']
        );
    }

    public function testReadsColorsVariablesFontsSizesAndPresets(): void
    {
        $design = self::sample();

        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());
    }

    public function testLooksUpByAliasLabelOrId(): void
    {
        $design = self::sample();

        self::assertSame('gcid-primary-color', $design->colorId('primary'));
        self::assertSame('gcid-a1b2', $design->colorId('nachtblau'));
        self::assertSame('gcid-a1b2', $design->colorId('gcid-a1b2'));
        self::assertNull($design->colorId('secondary'));
        self::assertNull($design->colorId('Alt'));
        self::assertSame('gvid-s1', $design->variable('telefon')['id'] ?? null);
        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']);
    }
}