<?php

declare(strict_types=1);

namespace Tests\Feature\Filament;

use App\Providers\Filament\AdminPanelProvider;
use Filament\Facades\Filament;
use Filament\FontProviders\LocalFontProvider;
use Filament\Support\Colors\Color;
use ReflectionMethod;
use Tests\TestCase;

/**
 * Pins the Heritage Editorial parity applied to the admin panel (MAN-118)
 * the same way HeritageEditorialTokensTest pins the public site's tokens, so
 * a future edit to AdminPanelProvider/the Filament theme entry cannot
 * silently drift back toward Filament's stock Amber/Zinc/dark-mode defaults.
 */
class AdminPanelBrandParityTest extends TestCase
{
    /**
     * @return array<int, string>
     */
    private function invokeColorRamp(string $method): array
    {
        $reflection = new ReflectionMethod(AdminPanelProvider::class, $method);
        $reflection->setAccessible(true);

        return $reflection->invoke(new AdminPanelProvider($this->app));
    }

    public function test_primary_ramp_pins_oliva_heranca_and_oliva_profundo(): void
    {
        $primary = $this->invokeColorRamp('primaryColor');

        $this->assertSame('#556B2F', $primary[600]);
        $this->assertSame('#3E5219', $primary[700]);
        $this->assertSame('#8B9D77', $primary[300]);

        // Deliberately NOT pure white: BadgeComponent/badge.css apply
        // `bg-color-50` directly as a badge's background, and a pure-white
        // 50 would render a "primary" badge as an invisible pill against
        // the Papel Marfim (#FBF9F4) panel body.
        $this->assertSame('#F3F5EC', $primary[50]);
        $this->assertNotSame('#FFFFFF', $primary[50]);
    }

    public function test_gray_ramp_pins_the_paper_and_ink_tokens(): void
    {
        $gray = $this->invokeColorRamp('grayColor');

        $this->assertSame('#FBF9F4', $gray[50]);
        $this->assertSame('#F0EEE9', $gray[100]);
        $this->assertSame('#E4E2DD', $gray[200]);
        $this->assertSame('#C5C8B8', $gray[300]);
        $this->assertSame('#5D6155', $gray[500]);
        $this->assertSame('#1B1C19', $gray[900]);
    }

    public function test_semantic_ramps_pin_the_existing_amare_hexes_at_shade_600(): void
    {
        $this->assertSame('#991B1B', $this->invokeColorRamp('dangerColor')[600]);
        $this->assertSame('#92400E', $this->invokeColorRamp('warningColor')[600]);
        $this->assertSame('#166534', $this->invokeColorRamp('successColor')[600]);
    }

    public function test_oliva_heranca_and_tinta_oliva_pairs_stay_wcag_aa(): void
    {
        $primary = $this->invokeColorRamp('primaryColor');
        $gray = $this->invokeColorRamp('grayColor');

        // White CTA text on the Oliva Herança solid-button background.
        $this->assertGreaterThanOrEqual(
            Color::WCAG_AA_TEXT,
            Color::calculateContrastRatio($primary[600], '#FFFFFF'),
        );

        // Tinta Oliva body copy on the Papel Marfim panel background.
        $this->assertGreaterThanOrEqual(
            Color::WCAG_AA_TEXT,
            Color::calculateContrastRatio($gray[900], $gray[50]),
        );

        // Badge text (BadgeComponent resolves this to shade 500 for this
        // ramp) against the badge's own bg-color-50 surface.
        $this->assertGreaterThanOrEqual(
            Color::WCAG_AA_TEXT,
            Color::calculateContrastRatio($primary[50], $primary[500]),
        );
    }

    public function test_admin_panel_disables_dark_mode(): void
    {
        $this->assertFalse(Filament::getPanel('admin')->hasDarkMode());
    }

    public function test_admin_panel_uses_the_amare_brand_name(): void
    {
        $this->assertSame('Amare Assessoria', Filament::getPanel('admin')->getBrandName());
    }

    public function test_admin_panel_self_hosts_eb_garamond_via_local_font_provider(): void
    {
        $panel = Filament::getPanel('admin');

        // Passed bare, not pre-quoted: Filament's own base layout wraps
        // getFontFamily() in single quotes itself
        // (`--font-family: '{!! filament()->getFontFamily() !!}';`), so a
        // value of "'EB Garamond'" here would render as the broken
        // `--font-family: ''EB Garamond'';` and silently fail to parse as a
        // font-family, falling back to ui-sans-serif — verified against the
        // actual rendered /admin/login output below, not assumed.
        $this->assertSame('EB Garamond', $panel->getFontFamily());
        $this->assertSame(LocalFontProvider::class, $panel->getFontProvider());

        // font-mono / font-serif utilities (e.g. KeyValue in
        // ManageSiteSettings) must not silently fall back to a system stack.
        $this->assertSame('EB Garamond', $panel->getMonoFontFamily());
        $this->assertSame(LocalFontProvider::class, $panel->getMonoFontProvider());
        $this->assertSame('EB Garamond', $panel->getSerifFontFamily());
        $this->assertSame(LocalFontProvider::class, $panel->getSerifFontProvider());
    }

    public function test_admin_login_page_renders_the_self_hosted_face_and_brand(): void
    {
        // The only assertion that actually exercises ->viteTheme(), the
        // HEAD_END render hook, and ->brandLogo() end to end — the panel
        // config getters above can't catch a broken manifest reference, a
        // render hook that throws, or a brandLogo closure that fails outside
        // a real request. Requires `npm run build` to have populated
        // public/build (CI's `test` job does this before running tests).
        $response = $this->get('/admin/login');

        $response->assertOk();

        // Filament's base layout emits `--font-family: '<value>';` — a
        // single-quoted value, since it does the wrapping itself.
        $response->assertSee("--font-family: 'EB Garamond';", escape: false);
        $response->assertSee("--mono-font-family: 'EB Garamond';", escape: false);
        $response->assertSee("--serif-font-family: 'EB Garamond';", escape: false);
        $response->assertSee('brand/lockup-on-light.webp', escape: false);

        // The actual requirement behind pinning LocalFontProvider: no
        // external font request leaks into the panel's <head>.
        $response->assertDontSee('fonts.bunny.net');
        $response->assertDontSee('fonts.googleapis.com');
    }

    public function test_admin_panel_is_wired_to_its_own_vite_theme_entry(): void
    {
        $this->assertSame(
            'resources/css/filament/admin/theme.css',
            Filament::getPanel('admin')->getViteTheme(),
        );
    }

    public function test_admin_theme_entry_zeroes_radius_and_shadow_tokens(): void
    {
        $theme = (string) file_get_contents(resource_path('css/filament/admin/theme.css'));

        $this->assertStringContainsString(
            "@import '../../../../vendor/filament/filament/resources/css/theme.css'",
            $theme,
        );
        $this->assertStringContainsString('--radius: 0', $theme);
        $this->assertStringContainsString('--radius-sm: 0', $theme);
        $this->assertStringContainsString('--radius-md: 0', $theme);
        $this->assertStringContainsString('--radius-lg: 0', $theme);
        $this->assertStringContainsString('--radius-xl: 0', $theme);
        $this->assertStringContainsString('--shadow: 0 0 #0000', $theme);
        $this->assertStringContainsString('--shadow-sm: 0 0 #0000', $theme);
        $this->assertStringContainsString('--shadow-md: 0 0 #0000', $theme);
        $this->assertStringContainsString('--shadow-lg: 0 0 #0000', $theme);

        // Manual override for the vendored Tippy.js tooltip CSS that ships
        // already-compiled in vendor/filament/support/dist/index.css and
        // therefore never sees the @theme overrides above.
        $this->assertStringContainsString('.tippy-box', $theme);
    }

    public function test_vite_builds_the_admin_theme_entry(): void
    {
        $vite = (string) file_get_contents(base_path('vite.config.js'));

        $this->assertStringContainsString("'resources/css/filament/admin/theme.css'", $vite);
    }

    public function test_admin_panel_brand_logo_reuses_the_public_lockup_asset(): void
    {
        $panel = Filament::getPanel('admin');

        $this->assertSame(asset('brand/lockup-on-light.webp'), $panel->getBrandLogo());
        $this->assertFileExists(base_path('public/brand/lockup-on-light.webp'));
    }
}