<?php

declare(strict_types=1);

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

use LIT\MCP\Integrations\Divi\BlockTree\Block;
use LIT\MCP\Integrations\Divi\Compose\StoredNodeGuard;
use LIT\MCP\Integrations\Divi\Design\PresetBook;
use LIT\MCP\Integrations\Divi\Design\PresetComposer;
use LIT\MCP\Integrations\Divi\Design\PresetScope;
use LIT\MCP\Tests\Support\ComposeFixture;
use PHPUnit\Framework\TestCase;

final class PresetComposerTest extends TestCase
{
    private const NOW = 1760000000000;

    /** Divi's mapping in small: decoration paths are preset attributes, innerContent is content. */
    private static function presetAttrs(): \Closure
    {
        return static function (string $module, array $attrs): array {
            $all = [];
            foreach ($attrs as $key => $value) {
                if (is_array($value)) {
                    $kept = array_diff_key($value, ['innerContent' => true]);
                    if ($kept !== []) {
                        $all[$key] = $kept;
                    }
                }
            }

            return ['all' => $all, 'style' => $all, 'render' => []];
        };
    }

    private static function composer(bool $unfiltered = true): PresetComposer
    {
        return new PresetComposer(
            ComposeFixture::composer($unfiltered),
            new StoredNodeGuard(
                ComposeFixture::cleaner($unfiltered),
                ComposeFixture::references(),
                ComposeFixture::sanitizer($unfiltered)
            ),
            self::presetAttrs(),
            static fn (string $module): array => [
                'module.decoration.spacing' => 'divi/spacing',
                'button.decoration.font' => 'divi/font',
            ],
            '5.15.1',
            static fn (): int => self::NOW
        );
    }

    private static function book(): PresetBook
    {
        return PresetBook::fromDivi(PresetBookTest::stored());
    }

    public function testNewModulePresetFromAttrs(): void
    {
        $result = self::composer()->compose(self::book(), new PresetScope('module', 'divi/button'), null, [
            'name' => 'CTA sekundär',
            'attrs' => ['button.decoration.background' => ['desktop' => ['color' => '#123456']]],
        ], 'items[0]', null);

        self::assertSame([], $result['errors']);
        $item = $result['item'];
        self::assertMatchesRegularExpression('/^[0-9a-z]{10}$/', $item['id']);
        self::assertSame(['module', 'CTA sekundär', 'divi/button', '5.15.1'], [$item['type'], $item['name'],
            $item['moduleName'], $item['version']]);
        self::assertSame([self::NOW, self::NOW], [$item['created'], $item['updated']]);
        self::assertSame('#123456', $item['attrs']['button']['decoration']['background']['desktop']['value']['color']);
        self::assertSame($item['attrs'], $item['styleAttrs']);
        self::assertArrayNotHasKey('renderAttrs', $item);
    }

    public function testContentPathsAreRefused(): void
    {
        $result = self::composer()->compose(self::book(), new PresetScope('module', 'divi/button'), null, [
            'name' => 'Mit Text',
            'set' => ['text' => 'Jetzt buchen'],
        ], 'items[0]', null);

        self::assertArrayHasKey('items[0].attrs.button.innerContent', $result['errors']);
        self::assertStringContainsString('kein Preset-Attribut', $result['errors']['items[0].attrs.button.innerContent']);
    }

    public function testChangingMergesKeepsIdCreatedAndOrder(): void
    {
        $existing = self::book()->items(new PresetScope('module', 'divi/button'))['aaaaaaaaaa'];
        $existing['created'] = 5;
        $existing['order'] = 3;
        $existing['attrs'] = ['button' => ['decoration' => ['border' => ['desktop' => ['value' => ['radius' => '4px']]]]]];

        $result = self::composer()->compose(self::book(), new PresetScope('module', 'divi/button'), $existing, [
            'rename' => 'CTA Primär',
            'attrs' => ['button.decoration.background' => ['desktop' => ['color' => '#000000']]],
        ], 'items[0]', null);

        self::assertSame([], $result['errors']);
        self::assertSame(['aaaaaaaaaa', 'CTA Primär', 5, self::NOW, 3], [$result['item']['id'], $result['item']['name'],
            $result['item']['created'], $result['item']['updated'], $result['item']['order']]);
        self::assertSame('4px', $result['item']['attrs']['button']['decoration']['border']['desktop']['value']['radius']);
    }

    public function testFromNodeTakesTheDesignButNotTheContent(): void
    {
        $node = Block::create('divi/button', [
            'button' => [
                'innerContent' => ['desktop' => ['value' => ['text' => 'Hallo']]],
                'decoration' => ['background' => ['desktop' => ['value' => ['color' => '#abcdef']]]],
            ],
        ]);

        $result = self::composer()->compose(self::book(), new PresetScope('module', 'divi/button'), null, [
            'name' => 'Aus Seite',
        ], 'items[0]', $node);

        self::assertSame([], $result['errors']);
        self::assertSame('#abcdef', $result['item']['attrs']['button']['decoration']['background']['desktop']['value']['color']);
        self::assertArrayNotHasKey('innerContent', $result['item']['attrs']['button']);
    }

    public function testEditorCannotCarryBuilderOnlyValuesFromANode(): void
    {
        $node = Block::create('divi/button', [
            'css' => ['desktop' => ['value' => ['mainElement' => 'color:red']]],
            'button' => ['decoration' => ['background' => ['desktop' => ['value' => ['color' => '#000000']]]]],
        ]);

        $result = self::composer(false)->compose(self::book(), new PresetScope('module', 'divi/button'), null, [
            'name' => 'Mit CSS',
        ], 'items[0]', $node);

        self::assertArrayHasKey('items[0].from_node', $result['errors']);
    }

    public function testGroupPresetOnlyTakesItsGroup(): void
    {
        $result = self::composer()->compose(self::book(), new PresetScope('group', 'divi/spacing'), null, [
            'name' => 'Abstand groß',
            'source_module' => 'button',
            'attrs' => [
                'module.decoration.spacing' => ['desktop' => ['padding' => ['top' => '40px']]],
                'button.decoration.background' => ['desktop' => ['color' => '#000000']],
            ],
        ], 'items[0]', null);

        self::assertSame(
            'gehört nicht zur Gruppe module.decoration.spacing',
            $result['errors']['items[0].attrs.button.decoration.background']
        );
        self::assertSame(['group', 'divi/spacing', 'module.decoration.spacing', 'divi/button'], [
            $result['item']['type'], $result['item']['groupName'], $result['item']['groupId'],
            $result['item']['moduleName'],
        ]);
    }

    public function testNestedGroupPresetsByShortName(): void
    {
        $book = self::book()->with(new PresetScope('group', 'divi/font'), [
            'type' => 'group', 'id' => 'ffffffffff', 'name' => 'Button-Schrift', 'groupName' => 'divi/font',
            'groupId' => 'button.decoration.font', 'moduleName' => 'divi/button', 'attrs' => [],
        ]);

        $result = self::composer()->compose($book, new PresetScope('module', 'divi/button'), null, [
            'name' => 'Mit Schrift',
            'group_presets' => ['font' => 'Button-Schrift'],
        ], 'items[0]', null);

        self::assertSame([], $result['errors']);
        self::assertSame(
            ['button.decoration.font' => ['presetId' => ['ffffffffff'], 'groupName' => 'divi/font']],
            $result['item']['groupPresets']
        );
    }

    public function testUnknownGroupAndPresetAreErrors(): void
    {
        $result = self::composer()->compose(self::book(), new PresetScope('module', 'divi/button'), null, [
            'name' => 'X',
            'group_presets' => ['sizing' => 'Gibt es nicht', 'font' => 'Fehlt'],
        ], 'items[0]', null);

        self::assertStringContainsString('keine Gruppe', $result['errors']['items[0].group_presets.sizing']);
        self::assertStringContainsString('unbekanntes Gruppen-Preset', $result['errors']['items[0].group_presets.font']);
    }

    public function testNewPresetNeedsAName(): void
    {
        $result = self::composer()->compose(self::book(), new PresetScope('module', 'divi/button'), null, [],
            'items[0]', null);

        self::assertSame('Name des neuen Presets fehlt', $result['errors']['items[0].name']);
    }
}