<?php

use Illuminate\Support\Facades\File;
use Illuminate\Support\Str;

beforeEach(function () {
    $this->stylesheet = sys_get_temp_dir().'/material-scheme-'.Str::random(8).'.css';
    $this->data = Str::replaceLast('.css', '.json', $this->stylesheet);
});

afterEach(function () {
    File::delete([$this->stylesheet, $this->data]);
});

it('writes the scheme as a stylesheet and as data', function () {
    $this->artisan('material:scheme', ['seed' => '#4F46E5', '--output' => $this->stylesheet])
        ->assertSuccessful();

    $scheme = json_decode(File::get($this->data), true);
    $stylesheet = File::get($this->stylesheet);

    expect($scheme)
        ->seed->toBe('#4f46e5')
        ->variant->toBe('tonal-spot')
        ->spec->toBe('2025')
        ->and(array_keys($scheme['dark']))->toEqual(array_keys($scheme['light']))
        ->and($scheme['light'])->toHaveKeys(['primary', 'on-primary', 'tertiary-container', 'surface-container-high', 'outline-variant', 'success', 'on-warning-container', 'info-container'])
        ->and($scheme['light']['surface'])->not->toBe($scheme['dark']['surface'])
        ->and($scheme['light']['inverse-success'])->toBe($scheme['dark']['success']);

    foreach (['light' => "[data-theme='light']", 'dark' => "[data-theme='dark']"] as $theme => $selector) {
        $block = Str::of($stylesheet)->after($selector)->before('}')->toString();

        expect($block)->toContain("color-scheme: {$theme};");

        foreach ($scheme[$theme] as $role => $hex) {
            expect($block)->toContain("--md-sys-color-{$role}: {$hex};");
        }
    }

    expect($stylesheet)->toContain('php artisan material:scheme "#4f46e5" --variant=tonal-spot');
});

it('generates a different scheme per variant', function () {
    $this->artisan('material:scheme', ['seed' => '#4f46e5', '--variant' => 'vibrant', '--output' => $this->stylesheet])
        ->assertSuccessful();

    $vibrant = json_decode(File::get($this->data), true);

    $this->artisan('material:scheme', ['seed' => '#4f46e5', '--output' => $this->stylesheet])
        ->assertSuccessful();

    $tonalSpot = json_decode(File::get($this->data), true);

    expect($vibrant['variant'])->toBe('vibrant')
        ->and($vibrant['light']['primary'])->not->toBe($tonalSpot['light']['primary']);
});

it('refuses a seed that is not a colour', function () {
    $this->artisan('material:scheme', ['seed' => 'indigo', '--output' => $this->stylesheet])
        ->expectsOutputToContain('#rrggbb')
        ->assertFailed();

    expect(File::exists($this->stylesheet))->toBeFalse();
});

it('refuses an unknown variant', function () {
    $this->artisan('material:scheme', ['seed' => '#4f46e5', '--variant' => 'loud', '--output' => $this->stylesheet])
        ->expectsOutputToContain('Unknown variant "loud"')
        ->assertFailed();
});

it('fails without writing anything when node cannot run', function () {
    config(['livewire-material.node' => '/nonexistent/node']);

    $this->artisan('material:scheme', ['seed' => '#4f46e5', '--output' => $this->stylesheet])
        ->assertFailed();

    expect(File::exists($this->stylesheet))->toBeFalse();
});