<?php

declare(strict_types=1);

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

use Brain\Monkey\Functions;
use LIT\MCP\Abilities\Annotations;
use LIT\MCP\Integrations\Divi\Design\DiviThemeOptionsGetAbility;
use LIT\MCP\Integrations\Divi\Design\ThemeOptionBook;
use LIT\MCP\Integrations\Divi\Design\ThemeOptionsAdapter;
use LIT\MCP\Integrations\Divi\Design\ThemeOptionSpec;
use LIT\MCP\Integrations\Divi\Release\DiviFeature;
use LIT\MCP\Tests\Unit\TestCase;
use Mockery;

final class DiviThemeOptionsGetAbilityTest extends TestCase
{
    protected function setUp(): void
    {
        parent::setUp();
        Functions\when('current_user_can')->justReturn(true);
    }

    private static function ability(): DiviThemeOptionsGetAbility
    {
        $stored = ThemeOptionsAreaTest::stored();
        $writes = [];

        return new DiviThemeOptionsGetAbility(ThemeOptionsAreaTest::adapter($stored, $writes));
    }

    /**
     * @param array<string, mixed> $result
     * @return array<string, array<string, mixed>> key => row
     */
    private static function byKey(array $result): array
    {
        return array_column($result['options'], null, 'key');
    }

    public function testSchemaAndMeta(): void
    {
        $ability = self::ability();
        $schema = $ability->inputSchema();

        self::assertSame('lit/divi-theme-options-get', $ability->name());
        self::assertFalse($ability->isDirect());
        self::assertSame(Annotations::read(), $ability->annotations());
        self::assertSame([DiviFeature::ThemeOptionRead], $ability->diviFeatures([]));
        self::assertSame(ThemeOptionSpec::KEYS, $schema['properties']['keys']['items']['enum']);
        self::assertFalse($schema['additionalProperties']);
        self::assertSame(['options', 'design_rev', 'notes'], $ability->outputSchema()['required']);
        self::assertStringContainsString('lit/divi-theme-options-update', $ability->description());
    }

    /** Reading needs what lit/divi-design-system needs (edit_posts) – checked before Divi is asked. */
    public function testNeedsEditPosts(): void
    {
        Functions\when('current_user_can')->justReturn(false);
        $options = Mockery::mock(ThemeOptionsAdapter::class);
        $options->shouldNotReceive('read');
        $ability = new DiviThemeOptionsGetAbility($options);

        self::assertToolError($ability->permission([]), 'forbidden');
        self::assertToolError($ability->execute([]), 'forbidden');
    }

    public function testListsEveryOptionWithValueEffectiveValueAndDefault(): void
    {
        $result = self::ability()->execute([]);

        self::assertSame(ThemeOptionSpec::KEYS, array_column($result['options'], 'key'));
        self::assertSame(ThemeOptionBook::fromDivi(ThemeOptionsAreaTest::stored())->rev(), $result['design_rev']);
        $rows = self::byKey($result);
        $size = ThemeOptionSpec::definition('body_font_size');
        $expected = ['key' => 'body_font_size', 'label' => $size['label'], 'type' => 'int', 'value' => 16,
            'effective' => 16, 'default' => ThemeOptionSpec::effective('body_font_size', []), 'is_default' => false,
            'min' => $size['min'], 'max' => $size['max'], 'step' => $size['step']];
        $actual = $rows['body_font_size'];
        ksort($expected);
        ksort($actual);
        self::assertSame($expected, $actual);
        self::assertSame('Open Sans', $rows['body_font']['value']);
    }

    /** Ruling W3: an unset tablet size inherits the desktop size – as effective value and as its default. */
    public function testUnsetSizesInheritTheLargerSize(): void
    {
        $tablet = self::byKey(self::ability()->execute([]))['tablet_body_font_size'];

        self::assertNull($tablet['value']);
        self::assertTrue($tablet['is_default']);
        self::assertSame(16, $tablet['effective']);
        self::assertSame(16, $tablet['default']);
        self::assertSame('body_font_size', $tablet['inherits']);
    }

    public function testChoicesAreListed(): void
    {
        $rows = self::byKey(self::ability()->execute([]));

        self::assertSame(
            ThemeOptionSpec::definition('body_header_style')['choices'],
            $rows['body_header_style']['choices']
        );
        self::assertArrayNotHasKey('choices', $rows['body_font']);
    }

    public function testKeysNarrowTheAnswerInTheFixedOrder(): void
    {
        $result = self::ability()->execute(['keys' => ['row_padding', 'body_font']]);

        self::assertSame(['body_font', 'row_padding'], array_column($result['options'], 'key'));
    }

    public function testUnknownKeysAreRefused(): void
    {
        $error = self::ability()->execute(['keys' => ['accent_color', 'body_font', 5]]);

        self::assertToolError($error, 'validation_failed');
        self::assertSame(['keys[0]', 'keys[2]'], array_keys(self::errorFields($error)));
        self::assertToolError(self::ability()->execute(['keys' => 'body_font']), 'validation_failed');
    }

    /** G3, A8: the main colors are not theme options here; the notes point to lit/divi-colors-set. */
    public function testNotesPointToTheColorTool(): void
    {
        $notes = implode(' ', self::ability()->execute([])['notes']);

        self::assertStringContainsString('lit/divi-colors-set', $notes);
        self::assertStringContainsString('null', $notes);
    }
}