<?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();
});

it('generates every configured profile into one stylesheet keyed by data-scheme', function () {
    config([
        'livewire-material.profiles' => [
            'indigo' => ['label' => 'Indigo', 'seed' => '#4f46e5', 'variant' => 'vibrant'],
            'teal' => ['label' => 'Teal', 'seed' => '#00897b', 'variant' => 'vibrant'],
            'graphite' => ['seed' => '#5f6368', 'variant' => 'neutral'],
        ],
        'livewire-material.profile' => 'teal',
    ]);

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

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

    expect($scheme['default'])->toBe('teal')
        ->and(array_keys($scheme['profiles']))->toBe(['indigo', 'teal', 'graphite'])
        ->and($scheme['profiles']['graphite'])->label->toBe('Graphite')->variant->toBe('neutral')
        ->and($scheme['profiles']['indigo']['light']['primary'])->not->toBe($scheme['profiles']['teal']['light']['primary'])
        // The top level is the default profile, as a 1.0 reader expects.
        ->and($scheme['light'])->toBe($scheme['profiles']['teal']['light'])
        ->and($scheme['dark'])->toBe($scheme['profiles']['teal']['dark'])
        ->and($scheme['seed'])->toBe('#00897b')
        ->and($stylesheet)->toContain('php artisan material:scheme'."\n");

    // The default's plain blocks come first, so a profile's single-attribute selector follows :root.
    expect(strpos($stylesheet, ":root,\n[data-theme='light'] {"))->toBeLessThan(strpos($stylesheet, "[data-scheme='indigo'],"));

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

            expect($block)->toContain("color-scheme: {$theme};")
                ->toContain("--md-sys-color-primary: {$profile[$theme]['primary']};")
                ->toContain("--md-sys-color-surface: {$profile[$theme]['surface']};");
        }
    }
});

it('names the profile a generator error belongs to', function () {
    config(['livewire-material.profiles' => ['indigo' => ['seed' => '#4f46e5'], 'broken' => ['seed' => 'teal']]]);

    $this->artisan('material:scheme', ['--output' => $this->stylesheet])
        ->expectsOutputToContain('Profile "broken"')
        ->assertFailed();

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

it('asks for a seed or profiles when it has neither', function () {
    config(['livewire-material.profiles' => []]);

    $this->artisan('material:scheme', ['--output' => $this->stylesheet])
        ->expectsOutputToContain('livewire-material.profiles')
        ->assertFailed();
});

it('refuses a profile name that cannot be an attribute value', function () {
    config(['livewire-material.profiles' => ['Ocean Blue' => ['seed' => '#0b57d0']]]);

    $this->artisan('material:scheme', ['--output' => $this->stylesheet])
        ->expectsOutputToContain('"Ocean Blue" is not')
        ->assertFailed();
});