<?php

namespace App\Filament\Resources\Contracts;

use App\Filament\Resources\Contracts\Pages;
use App\Models\Contract;
use App\Models\Product;
use App\Models\PaymentTemplate;
use App\Enums\NavigationGroup;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\DatePicker;
use Filament\Schemas\Components\Section;
use Filament\Schemas\Schema;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Filament\Schemas\Components\Utilities\Get;
use App\Filament\Resources\Contracts\ContractResource\RelationManagers\ScheduleItemsRelationManager;

class ContractResource extends Resource
{
    protected static ?string $model = Contract::class;
    protected static string | \BackedEnum | null $navigationIcon = 'heroicon-o-document-text';
    protected static string | \UnitEnum | null $navigationGroup = NavigationGroup::TRANSACTION->value;
    protected static ?int $navigationSort = 4;

    protected static ?string $modelLabel = 'Hợp đồng';
    protected static ?string $pluralModelLabel = 'Hợp đồng';

    public static function form(Schema $schema): Schema
    {
        return $schema
            ->components([
                Section::make('Liên kết & Mẫu thanh toán')
                    ->columns(2)
                    ->schema([
                        Select::make('product_id')->label('Sản phẩm')->relationship('product', 'code')->required()->live(),
                        Select::make('payment_template_id')->label('Mẫu thanh toán')
                            ->options(fn (Get $get) => PaymentTemplate::pluck('name', 'id'))
                            ->required()->dehydrated(false),
                        Select::make('customers')->label('Khách hàng')->relationship('customers', 'full_name')->multiple()->required()->columnSpanFull(),
                    ]),
                Section::make('Chi tiết Hợp đồng')
                    ->columns(2)
                    ->schema([
                        TextInput::make('contract_number')->label('Số HĐ')->required(),
                        DatePicker::make('signing_date')->label('Ngày ký')->required(),
                    ])
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('contract_number')->label('Số HĐ')->searchable(),
                Tables\Columns\TextColumn::make('product.code')->label('Sản phẩm'),
                Tables\Columns\TextColumn::make('total_value')->label('Giá trị')->money('VND'),
            ]);
    }

    public static function getRelations(): array { return [ScheduleItemsRelationManager::class]; }

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