<?php

namespace App\Filament\Resources;

use App\Commands\Expenses\GenerateVoucher;
use App\Filament\Resources\ExpenseResource\Pages;
use App\Models\Account;
use App\Models\Branch;
use App\Models\Client;
use App\Models\Expense;
use Awcodes\TableRepeater\Components\TableRepeater;
use Awcodes\TableRepeater\Header;
use Filament\Forms\Components\DatePicker;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Form;
use Filament\Forms\Get;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Illuminate\Support\Collection;

class ExpenseResource extends Resource
{
    protected static ?string $model = Expense::class;

    protected static ?string $navigationIcon = 'heroicon-o-rectangle-stack';

    public static function form(Form $form): Form
    {
        return $form
            ->schema(static::getExpenseFormFields());
    }

    public static function getExpenseFormFields(): array
    {
        return [
            Select::make('client')
                ->options(Client::query()->get()->pluck('company', 'id'))->live(),
            Select::make('branch_id')->options(fn ($get) => Branch::query()->where('client_id', $get('client'))->get()->pluck('code', 'id'))
                ->afterStateUpdated(fn ($state, $set) => $set('voucher_number', GenerateVoucher::execute(Branch::find($state))))->live(),
            TextInput::make('supplier')->label('Supplier Name'),
            TextInput::make('reference_number')->label('Reference Number'),
            TextInput::make('voucher_number')->label('Voucher Number'),
            DatePicker::make('happened_on')->label('Date')->native(false),

            TableRepeater::make('transactions')
                ->headers([
                    Header::make('Charge Account'),
                    Header::make('Description'),
                    Header::make('Gross Amount'),
                    Header::make('Withholding Tax'),
                    Header::make('Net Amount'),
                ])
                ->schema([
                    Select::make('account_id')->options(fn ($get) => static::getAccountOptions($get)),
                    TextInput::make('description')->label('Description'),
                    TextInput::make('gross_amount'),
                    TextInput::make('payable_withholding_tax'),
                    TextInput::make('net_amount'),
                ])->columnSpan('full'),
        ];
    }

    public static function getAccountOptions(Get $get): Collection
    {
        $query = Account::query();

        $query->where([
            'client_id' => $get('../../client'),
        ]);

        if ($get('../../branch_id')) {
            $query->whereHas('balances', function ($query) use ($get) {
                return $query->where('branch_id', $get('../../branch_id'));
            });
        }

        $query->whereHas('accountType', function ($query) {
            return $query->where('type', 'Expenses');
        });

        return $query->get()->pluck('account', 'id');
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns(static::getTableColumns())
            ->filters([
                //
            ])
            ->actions([
                Tables\Actions\DeleteAction::make(),
                Tables\Actions\EditAction::make(),
            ])
            ->bulkActions([
                Tables\Actions\BulkActionGroup::make([
                    Tables\Actions\DeleteBulkAction::make(),
                ]),
            ]);
    }

    public static function getTableColumns(): array
    {
        return [
            Tables\Columns\TextColumn::make('supplier'),
            Tables\Columns\TextColumn::make('reference_number'),
            Tables\Columns\TextColumn::make('voucher_number'),
            Tables\Columns\TextColumn::make('branch.client.company'),
            Tables\Columns\TextColumn::make('branch.code'),
            Tables\Columns\TextColumn::make('happened_on'),
        ];
    }

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

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