<?php

declare(strict_types=1);

namespace App\Providers\Filament;

use App\Filament\Pages\Auth\RequestPasswordReset;
use Filament\FontProviders\LocalFontProvider;
use Filament\Http\Middleware\Authenticate;
use Filament\Http\Middleware\AuthenticateSession;
use Filament\Http\Middleware\DisableBladeIconComponents;
use Filament\Http\Middleware\DispatchServingFilamentEvent;
use Filament\Pages\Dashboard;
use Filament\Panel;
use Filament\PanelProvider;
use Filament\View\PanelsRenderHook;
use Filament\Widgets\AccountWidget;
use Filament\Widgets\FilamentInfoWidget;
use Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse;
use Illuminate\Cookie\Middleware\EncryptCookies;
use Illuminate\Foundation\Http\Middleware\PreventRequestForgery;
use Illuminate\Routing\Middleware\SubstituteBindings;
use Illuminate\Session\Middleware\StartSession;
use Illuminate\View\Middleware\ShareErrorsFromSession;

class AdminPanelProvider extends PanelProvider
{
    /**
     * Heritage Editorial — Oliva Herança primary ramp.
     *
     * Filament needs an explicit 11-stop shade array to preserve exact brand
     * hexes (a bare string/`Color::hex()` runs the value through
     * `Color::generatePalette()`, which discards its lightness and maps a
     * fixed per-shade lightness/chroma table instead — see MAN-118 survey).
     * Shade 600 pins `#556B2F` (Oliva Herança) and shade 700 pins `#3E5219`
     * (Oliva Profundo). `Filament\Support\View\Components\ColorMaps\
     * ButtonComponentColorMap` was used to verify empirically (not assumed)
     * that a solid primary button resolves to `bg: 600, hover:bg: 500, text:
     * 50` at 5.42:1 / 4.57:1 contrast (WCAG AA). Shade 50 is a pale olive
     * tint rather than pure white deliberately: `BadgeComponent`/
     * `badge.css` apply `bg-color-50` directly as a badge's background
     * (independent of the button map above), and a pure-white 50 would
     * render a "primary" badge as an all-but-invisible pill against the
     * Papel Marfim (`#FBF9F4`) panel body.
     *
     * @return array<int, string>
     */
    private function primaryColor(): array
    {
        return [
            50 => '#F3F5EC',
            100 => '#E7EBDA',
            200 => '#D4DCBE',
            300 => '#8B9D77', // Sálvia Silenciosa
            400 => '#6E8354',
            500 => '#61763A',
            600 => '#556B2F', // Oliva Herança
            700 => '#3E5219', // Oliva Profundo
            800 => '#2E3D13',
            900 => '#1F290D',
            950 => '#141B08',
        ];
    }

    /**
     * Heritage Editorial — paper/ink neutral ramp, replacing Filament's
     * stock Zinc gray so panel chrome (sidebar, topbar, body background,
     * borders) matches the public site's paper tones instead of true gray.
     * Anchored at the exact tokens where DESIGN.md defines them (50/100/200
     * = Papel Marfim/Profundo/Arquivo, 300 = Linha Botânica, 500 = Tinta
     * Suave, 900 = Tinta Oliva); the remaining stops are interpolated to
     * keep the ramp monotonic.
     *
     * @return array<int, string>
     */
    private function grayColor(): array
    {
        return [
            50 => '#FBF9F4', // Papel Marfim
            100 => '#F0EEE9', // Papel Profundo
            200 => '#E4E2DD', // Papel Arquivo
            300 => '#C5C8B8', // Linha Botânica
            400 => '#919486',
            500 => '#5D6155', // Tinta Suave
            600 => '#43453D',
            700 => '#32342E',
            800 => '#252622',
            900 => '#1B1C19', // Tinta Oliva
            950 => '#121210',
        ];
    }

    /**
     * Semantic ramps built the same way as the primary/gray ramps above:
     * an explicit 11-stop array (never `Color::hex()`) anchored so the
     * existing `--amare-color-{success,warning,error}` hex lands exactly on
     * shade 600 — verified against `ButtonComponentColorMap` to resolve to
     * `bg: 600` with white text at WCAG AA contrast, same as primary.
     *
     * @return array<int, string>
     */
    private function dangerColor(): array
    {
        return [
            50 => '#F7EDED',
            100 => '#EBD1D1',
            200 => '#D8A8A8',
            300 => '#C88484',
            400 => '#B85F5F',
            500 => '#A73B3B',
            600 => '#991B1B',
            700 => '#7D1616',
            800 => '#651212',
            900 => '#4C0E0E',
            950 => '#3A0A0A',
        ];
    }

    /**
     * @return array<int, string>
     */
    private function warningColor(): array
    {
        return [
            50 => '#F6F0EC',
            100 => '#E9D9CF',
            200 => '#D6B6A3',
            300 => '#C4987D',
            400 => '#B37956',
            500 => '#A15B30',
            600 => '#92400E',
            700 => '#78340B',
            800 => '#602A09',
            900 => '#492007',
            950 => '#371805',
        ];
    }

    /**
     * @return array<int, string>
     */
    private function successColor(): array
    {
        return [
            50 => '#ECF3EF',
            100 => '#D0E0D6',
            200 => '#A6C4B2',
            300 => '#81AC91',
            400 => '#5C9371',
            500 => '#377B50',
            600 => '#166534',
            700 => '#12532B',
            800 => '#0F4322',
            900 => '#0B321A',
            950 => '#082614',
        ];
    }

    public function panel(Panel $panel): Panel
    {
        return $panel
            ->default()
            ->id('admin')
            ->path('admin')
            ->login()
            ->passwordReset(requestAction: RequestPasswordReset::class)
            ->brandName('Amare Assessoria')
            ->brandLogo(fn (): string => asset('brand/lockup-on-light.webp'))
            ->brandLogoHeight('2rem')
            ->colors([
                'primary' => $this->primaryColor(),
                'gray' => $this->grayColor(),
                'danger' => $this->dangerColor(),
                'warning' => $this->warningColor(),
                'success' => $this->successColor(),
            ])
            // Heritage Editorial is a single paper palette by design (see
            // DESIGN.md) — no dark-mode variant exists, so the switcher is
            // removed rather than left pointing at an unstyled dark theme.
            ->darkMode(false)
            // Self-hosted EB Garamond, same family as the public site.
            // LocalFontProvider is pinned explicitly: HasFont::getFontProvider()
            // otherwise defaults a custom family to BunnyFontProvider, which
            // would emit a live request to fonts.bunny.net from the panel.
            // LocalFontProvider renders no <link>/@font-face itself (no $url
            // given), so the actual face comes from the render hook below,
            // reusing the public site's own <x-fonts /> component/manifest.
            //
            // The monospace and serif faces are set too, not just the base
            // (sans) family: Filament exposes them via the separate
            // ->monoFont()/->serifFont() calls below, and the `KeyValue`
            // field (used in ManageSiteSettings) renders in the monospace
            // face directly — left unset, that field would silently fall
            // back to a system monospace stack instead of EB Garamond,
            // breaking Heritage Editorial's single-voice typography.
            ->font('EB Garamond', provider: LocalFontProvider::class)
            ->monoFont('EB Garamond', provider: LocalFontProvider::class)
            ->serifFont('EB Garamond', provider: LocalFontProvider::class)
            ->renderHook(
                PanelsRenderHook::HEAD_END,
                fn (): string => view('components.fonts')->render(),
            )
            // Compiled Filament theme entry — sharp corners, flat surfaces
            // (see resources/css/filament/admin/theme.css for the full
            // rationale and the two vendored-CSS exceptions it can't reach).
            ->viteTheme('resources/css/filament/admin/theme.css')
            ->discoverResources(in: app_path('Filament/Resources'), for: 'App\Filament\Resources')
            ->discoverPages(in: app_path('Filament/Pages'), for: 'App\Filament\Pages')
            ->pages([
                Dashboard::class,
            ])
            ->discoverWidgets(in: app_path('Filament/Widgets'), for: 'App\Filament\Widgets')
            ->widgets([
                AccountWidget::class,
                FilamentInfoWidget::class,
            ])
            ->middleware([
                EncryptCookies::class,
                AddQueuedCookiesToResponse::class,
                StartSession::class,
                AuthenticateSession::class,
                ShareErrorsFromSession::class,
                PreventRequestForgery::class,
                SubstituteBindings::class,
                DisableBladeIconComponents::class,
                DispatchServingFilamentEvent::class,
            ])
            ->authMiddleware([
                Authenticate::class,
            ]);
    }
}