<?php

namespace App\Filament\Resources\Roles;

use App\Filament\Resources\Roles\Pages\CreateRole;
use App\Filament\Resources\Roles\Pages\EditRole;
use App\Filament\Resources\Roles\Pages\ListRoles;
use App\Models\User;
use BackedEnum;
use Filament\Actions\BulkActionGroup;
use Filament\Actions\DeleteAction;
use Filament\Actions\DeleteBulkAction;
use Filament\Actions\EditAction;
use Filament\Forms\Components\CheckboxList;
use Filament\Forms\Components\Hidden;
use Filament\Forms\Components\TextInput;
use Filament\Resources\Resource;
use Filament\Schemas\Schema;
use Filament\Support\Icons\Heroicon;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Table;
use Spatie\Permission\Models\Role;

class RoleResource extends Resource
{
    protected static ?string $model = Role::class;

    protected static string|BackedEnum|null $navigationIcon = Heroicon::OutlinedShieldCheck;

    protected static ?string $recordTitleAttribute = 'name';

    protected static ?int $navigationSort = 90;

    /** Core roles the app relies on, never deletable from the UI. */
    private const PROTECTED = ['admin', 'member'];

    public static function form(Schema $schema): Schema
    {
        return $schema->components([
            TextInput::make('name')
                ->required()
                ->unique(ignoreRecord: true)
                ->disabled(fn (?Role $record): bool => $record && in_array($record->name, self::PROTECTED, true))
                ->helperText('A short identifier, e.g. "editor" or "coach".'),

            Hidden::make('guard_name')->default('web'),

            CheckboxList::make('permissions')
                ->relationship('permissions', 'name')
                ->columns(2)
                ->searchable()
                ->bulkToggleable()
                ->helperText('What this role is allowed to do.'),
        ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                TextColumn::make('name')
                    ->badge()
                    ->color(fn (string $state): string => $state === 'admin' ? 'primary' : 'gray')
                    ->formatStateUsing(fn (string $state): string => ucfirst($state))
                    ->searchable()
                    ->sortable(),

                TextColumn::make('permissions_count')
                    ->label('Permissions')
                    ->counts('permissions')
                    ->badge()
                    ->color('info'),

                TextColumn::make('members')
                    ->label('Members')
                    ->badge()
                    ->color('success')
                    ->state(fn (Role $record): int => User::role($record->name)->count()),

                TextColumn::make('guard_name')
                    ->label('Guard')
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->recordActions([
                EditAction::make(),
                DeleteAction::make()
                    ->visible(fn (Role $record): bool => ! in_array($record->name, self::PROTECTED, true)),
            ])
            ->toolbarActions([
                BulkActionGroup::make([
                    DeleteBulkAction::make(),
                ]),
            ]);
    }

    public static function getPages(): array
    {
        return [
            'index' => ListRoles::route('/'),
            'create' => CreateRole::route('/create'),
            'edit' => EditRole::route('/{record}/edit'),
        ];
    }
}
