<?php

namespace App\Tests;

use App\Content\StyleCompiler;
use App\Domain\InvalidDocument;
use PHPUnit\Framework\TestCase;

/**
 * Umut: "bei Rows die Breite ändern, am besten per Drag and Drop im Editor". The editor writes
 * the shares of a row's columns; this is what the server makes of them.
 */
final class ColumnWidthsTest extends TestCase
{
    public function testSharesBecomeTracksAndStackWhereTheLayoutStacks(): void
    {
        $css = (new StyleCompiler())->compileDocument(['blocks' => [[
            'id' => 'zeile', 'type' => 'row',
            'layout' => ['design' => ['desktop' => ['columns' => 'two', 'gap' => 'medium'], 'mobile' => ['columns' => 'one']]],
            'style' => ['desktop' => ['columnWidths' => '66.7 33.3']],
            'children' => [['id' => 'a', 'type' => 'column'], ['id' => 'b', 'type' => 'column']],
        ]]]);
        // The desktop rule carries an id and would win over the class that stacks a phone, so
        // the phone gets a single track of its own.
        self::assertSame(
            '#zeile{grid-template-columns:minmax(0,66.7fr) minmax(0,33.3fr)}@media (max-width:767px){#zeile{grid-template-columns:minmax(0,1fr)}}',
            $css,
        );
    }

    public function testSharesArePaddedOrCutToTheColumnsAndCanDifferPerDevice(): void
    {
        $css = (new StyleCompiler())->compileDocument(['blocks' => [[
            'id' => 'zeile', 'type' => 'row',
            'style' => [
                'desktop' => ['columnWidths' => '2 1'],
                'tablet' => ['columnWidths' => '1 1 1 1'],
                'mobile' => ['gridColumns' => 1],
            ],
            'children' => [['id' => 'a', 'type' => 'column'], ['id' => 'b', 'type' => 'column'], ['id' => 'c', 'type' => 'column']],
        ]]]);
        // A column added after the drag gets the average share; a surplus share is dropped.
        self::assertStringContainsString('#zeile{grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1.5fr)}', $css);
        self::assertStringContainsString('@media (max-width:1024px){#zeile{grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1fr)}}', $css);
        self::assertStringContainsString('@media (max-width:767px){#zeile{grid-template-columns:minmax(0,1fr)}}', $css);
        // A single column has nothing to share, and only rows have columns.
        self::assertSame('', (new StyleCompiler())->compileDocument(['blocks' => [
            ['id' => 'einzeln', 'type' => 'row', 'style' => ['desktop' => ['columnWidths' => '2 1']], 'children' => [['id' => 'a', 'type' => 'column']]],
        ]]));
    }

    public function testOnlyListsOfPositiveSharesAreAccepted(): void
    {
        $compiler = new StyleCompiler();
        foreach (['2 1', '66.7 33.3', '25 50 25', '1'] as $good) {
            $compiler->validate(['desktop' => ['columnWidths' => $good]]);
        }
        foreach (['2 0', '2,1', '2  1', ' 2 1', '2fr 1fr', '1 1 1 1 1 1 1 1 1 1 1 1 1', '1000 1', '1.25 1'] as $bad) {
            try {
                $compiler->validate(['desktop' => ['columnWidths' => $bad]]);
                self::fail(sprintf('"%s" darf keine Spaltenaufteilung sein.', $bad));
            } catch (InvalidDocument $e) {
                self::assertStringContainsString('column shares', $e->getMessage());
            }
        }
    }
}