<?php

namespace App\Filament\Tenant\Resources;

use App\Filament\Tenant\Resources\PayrollRunResource\Pages;
use App\Models\Tenant\PayrollRun;
use App\Models\Tenant\User;
use App\Services\PayrollCalculator;
use Filament\Actions;
use Filament\Forms;
use Filament\Notifications\Notification;
use Filament\Resources\Resource;
use Filament\Schemas;
use Filament\Schemas\Schema;
use Filament\Tables;
use Filament\Tables\Table;

class PayrollRunResource extends Resource
{
    protected static ?string $model = PayrollRun::class;

    protected static string|\BackedEnum|null $navigationIcon = 'heroicon-o-banknotes';

    protected static ?string $navigationLabel = 'Salarii';

    protected static string|\UnitEnum|null $navigationGroup = 'Finanțe';

    protected static ?string $modelLabel = 'salariu';

    protected static ?string $pluralModelLabel = 'salarii';

    protected static ?int $navigationSort = 53;

    public static function canViewAny(): bool
    {
        return auth()->user()?->canDo(\App\Auth\Permissions::SALARIES_VIEW_ALL) ?? false;
    }

    public static function canCreate(): bool
    {
        return auth()->user()?->canDo(\App\Auth\Permissions::SALARIES_CALCULATE) ?? false;
    }

    public static function form(Schema $schema): Schema
    {
        return $schema->components([
            Schemas\Components\Section::make('Detalii')
                ->columns(2)
                ->schema([
                    Forms\Components\Select::make('user_id')
                        ->label('Utilizator')
                        ->options(fn () => User::orderBy('name')->pluck('name', 'id'))
                        ->searchable()
                        ->required(),
                    Forms\Components\TextInput::make('period')
                        ->label('Perioada (YYYY-MM)')
                        ->placeholder(now()->format('Y-m'))
                        ->required()
                        ->regex('/^\d{4}-\d{2}$/'),
                ]),
            Schemas\Components\Section::make('Calcul')
                ->columns(3)
                ->schema([
                    Forms\Components\TextInput::make('base')->label('Bază')->numeric()->default(0),
                    Forms\Components\TextInput::make('works_revenue')->label('Venit manopere')->numeric()->disabled(),
                    Forms\Components\TextInput::make('works_pct_amount')->label('Comision manopere')->numeric()->disabled(),
                    Forms\Components\TextInput::make('parts_margin')->label('Marja piese')->numeric()->disabled(),
                    Forms\Components\TextInput::make('parts_pct_amount')->label('Comision piese')->numeric()->disabled(),
                    Forms\Components\TextInput::make('bonus')->numeric()->default(0),
                    Forms\Components\TextInput::make('fines')->label('Penalizări')->numeric()->default(0),
                    Forms\Components\TextInput::make('advance')->label('Avans')->numeric()->default(0),
                    Forms\Components\TextInput::make('total')->label('Total net')->numeric()->disabled(),
                ]),
            Schemas\Components\Section::make('Plată')
                ->columns(2)
                ->schema([
                    Forms\Components\Toggle::make('paid')->label('Achitat'),
                    Forms\Components\DatePicker::make('paid_at')->label('Data plății'),
                ]),
            Forms\Components\Textarea::make('notes')->label('Notițe')->columnSpanFull()->rows(2),
        ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('period')->label('Perioadă')->sortable(),
                Tables\Columns\TextColumn::make('user.name')->label('Utilizator')->searchable(),
                Tables\Columns\TextColumn::make('base')->money('MDL')->alignRight(),
                Tables\Columns\TextColumn::make('works_pct_amount')->label('% manopere')->money('MDL')->alignRight(),
                Tables\Columns\TextColumn::make('parts_pct_amount')->label('% piese')->money('MDL')->alignRight(),
                Tables\Columns\TextColumn::make('bonus')->money('MDL')->alignRight()->color('success'),
                Tables\Columns\TextColumn::make('fines')->money('MDL')->alignRight()->color('danger'),
                Tables\Columns\TextColumn::make('advance')->money('MDL')->alignRight()->color('warning'),
                Tables\Columns\TextColumn::make('total')->label('Total')->money('MDL')->alignRight()->weight('bold')
                    ->summarize(Tables\Columns\Summarizers\Sum::make()->money('MDL')),
                Tables\Columns\IconColumn::make('paid')->boolean(),
            ])
            ->headerActions([
                Actions\Action::make('compute_all')
                    ->label('Calculează luna curentă')
                    ->icon('heroicon-m-calculator')
                    ->color('primary')
                    ->action(function () {
                        $period = now()->format('Y-m');
                        $count = 0;
                        foreach (User::pluck('id') as $uid) {
                            app(PayrollCalculator::class)->compute($uid, $period);
                            $count++;
                        }
                        Notification::make()
                            ->title("Calculat salariul {$period} pentru {$count} utilizatori")
                            ->success()->send();
                    }),
            ])
            ->filters([
                Tables\Filters\SelectFilter::make('period')
                    ->label('Perioadă')
                    ->options(fn () => PayrollRun::distinct()->pluck('period', 'period')->toArray()),
                Tables\Filters\TernaryFilter::make('paid')->label('Achitat'),
            ])
            ->actions([
                Actions\Action::make('recompute')
                    ->label('Recalculează')
                    ->icon('heroicon-m-arrow-path')
                    ->action(fn (PayrollRun $r) => app(PayrollCalculator::class)->compute($r->user_id, $r->period)),
                Actions\EditAction::make(),
                Actions\DeleteAction::make(),
            ])
            ->defaultSort('period', 'desc');
    }

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListPayrollRuns::route('/'),
            'create' => Pages\CreatePayrollRun::route('/create'),
            'edit' => Pages\EditPayrollRun::route('/{record}/edit'),
        ];
    }
}