<?php

namespace Modules\Stylist\Tests\Feature;

use Illuminate\Filesystem\Filesystem;
use Modules\Stylist\Theme\Exceptions\InvalidThemeManifestException;
use Modules\Stylist\Theme\Loader;
use Tests\TestCase;

final class ThemeManifestTest extends TestCase
{
    private string $themesPath;

    protected function setUp(): void
    {
        parent::setUp();

        $this->themesPath = storage_path('framework/testing/stylist-themes-'.uniqid());
        mkdir($this->themesPath, 0777, true);
        config(['stylist.themes_path' => $this->themesPath]);
        app(Loader::class)->flush();
    }

    protected function tearDown(): void
    {
        app(Filesystem::class)->deleteDirectory($this->themesPath);
        parent::tearDown();
    }

    public function test_manifest_is_normalised(): void
    {
        $path = $this->themesPath.'/sample';
        mkdir($path.'/css', 0777, true);
        file_put_contents($path.'/theme.json', json_encode(['name' => 'Sample']));
        file_put_contents($path.'/css/theme.css', 'body{}');

        $theme = app(Loader::class)->fromPath($path);

        $this->assertSame('sample', $theme->key());
        $this->assertSame('css/theme.css', $theme->stylesheet());
        $this->assertSame('js/app.js', $theme->script());
        $this->assertSame('home', $theme->entryView());
    }

    public function test_unsafe_manifest_path_is_rejected(): void
    {
        $path = $this->themesPath.'/unsafe';
        mkdir($path, 0777, true);
        file_put_contents($path.'/theme.json', json_encode([
            'name' => 'Unsafe',
            'stylesheet' => '../secret.css',
        ]));

        $this->expectException(InvalidThemeManifestException::class);
        app(Loader::class)->fromPath($path);
    }

    public function test_phase_one_manifest_optional_capabilities_are_normalised(): void
    {
        $path = $this->themesPath.'/design-gallery';
        mkdir($path.'/css', 0777, true);
        mkdir($path.'/js', 0777, true);
        file_put_contents($path.'/theme.json', json_encode([
            'key' => 'design-gallery',
            'name' => 'Design Gallery',
            'stylesheet' => 'css/app.css',
            'script' => 'js/app.js',
            'appearances' => ['light', 'dark', 'system'],
            'accents' => ['blue', 'emerald', 'neutral'],
            'default_appearance' => 'system',
            'default_accent' => 'neutral',
            // Phase 1 incorrectly duplicated accents here; Stylist must not
            // reject the whole theme because of that compact legacy list.
            'variants' => ['blue', 'emerald', 'neutral'],
        ]));
        file_put_contents($path.'/css/app.css', 'body{}');
        file_put_contents($path.'/js/app.js', '');

        $theme = app(Loader::class)->fromPath($path);

        $this->assertSame(['light', 'dark', 'system'], array_keys($theme->appearances()));
        $this->assertSame(['blue', 'emerald', 'neutral'], array_keys($theme->accents()));
        $this->assertSame([], $theme->variants());
        $this->assertSame('system', $theme->defaultAppearance());
        $this->assertSame('neutral', $theme->defaultAccent());
    }

    public function test_legacy_manifest_does_not_gain_appearance_or_accent_capabilities(): void
    {
        $path = $this->themesPath.'/legacy';
        mkdir($path.'/css', 0777, true);
        file_put_contents($path.'/theme.json', json_encode(['name' => 'Legacy']));
        file_put_contents($path.'/css/theme.css', 'body{}');

        $theme = app(Loader::class)->fromPath($path);

        $this->assertSame([], $theme->appearances());
        $this->assertSame([], $theme->accents());
        $this->assertSame('', $theme->defaultAppearance());
        $this->assertSame('', $theme->defaultAccent());
    }

    public function test_defaults_must_reference_declared_optional_capabilities(): void
    {
        $path = $this->themesPath.'/invalid-default';
        mkdir($path, 0777, true);
        file_put_contents($path.'/theme.json', json_encode([
            'name' => 'Invalid Default',
            'appearances' => ['light', 'dark'],
            'default_appearance' => 'system',
        ]));

        $this->expectException(InvalidThemeManifestException::class);
        app(Loader::class)->fromPath($path);
    }

    public function test_manifest_version_and_capabilities_are_normalised(): void
    {
        $path = $this->themesPath.'/capable';
        mkdir($path.'/css', 0777, true);
        mkdir($path.'/js', 0777, true);
        mkdir($path.'/views', 0777, true);
        file_put_contents($path.'/theme.json', json_encode([
            'manifest_version' => 1,
            'name' => 'Capable',
            'appearances' => ['light', 'dark'],
            'accents' => ['blue'],
            'capabilities' => ['marketplace' => true],
        ]));
        file_put_contents($path.'/css/theme.css', 'body{}');
        file_put_contents($path.'/js/app.js', '');
        file_put_contents($path.'/views/home.blade.php', '<div>Capable</div>');

        $theme = app(Loader::class)->fromPath($path);

        $this->assertSame(1, $theme->manifestVersion());
        $this->assertTrue($theme->hasCapability('appearances'));
        $this->assertTrue($theme->hasCapability('accents'));
        $this->assertTrue($theme->hasCapability('marketplace'));
        $this->assertFalse($theme->hasCapability('preview'));
    }

    public function test_unknown_manifest_fields_are_preserved_without_preventing_loading(): void
    {
        $path = $this->themesPath.'/future';
        mkdir($path.'/css', 0777, true);
        file_put_contents($path.'/theme.json', json_encode([
            'name' => 'Future',
            'future_builder_metadata' => ['anything' => true],
        ]));
        file_put_contents($path.'/css/theme.css', 'body{}');

        $theme = app(Loader::class)->fromPath($path);

        $this->assertSame(['anything' => true], $theme->meta()['future_builder_metadata']);
    }
}