<?php

namespace App\Filament\Tenant\Resources\PurchaseResource\RelationManagers;

use App\Models\Tenant\Part;
use App\Models\Tenant\PurchaseItem;
use App\Models\Tenant\Warehouse;
use Filament\Actions;
use Filament\Forms;
use Filament\Notifications\Notification;
use Filament\Resources\RelationManagers\RelationManager;
use Filament\Schemas\Components\Utilities\Set;
use Filament\Schemas\Schema;
use Filament\Tables;
use Filament\Tables\Table;

class ItemsRelationManager extends RelationManager
{
    protected static string $relationship = 'items';

    protected static ?string $title = null;

    public static function getTitle(\Illuminate\Database\Eloquent\Model $ownerRecord, string $pageClass): string
    {
        return __('Articole');
    }

    public function form(Schema $schema): Schema
    {
        return $schema->components([
            Forms\Components\Select::make('part_id')
                ->label(__('Piesă din catalog'))
                ->options(fn () => Part::where('is_active', true)
                    ->get()
                    ->mapWithKeys(fn ($p) => [$p->id => "{$p->name} " . ($p->article ? "[{$p->article}]" : '')])
                    ->toArray())
                ->searchable()
                ->live()
                ->afterStateUpdated(function ($state, Set $set) {
                    if ($state && $part = Part::find($state)) {
                        $set('name', $part->name);
                        $set('article', $part->article);
                        if ($part->unit_id) { $set('unit_id', $part->unit_id); } else { $set('unit', $part->unit); }
                        $set('buy_price', $part->buy_price);
                    }
                })
                ->columnSpanFull(),
            Forms\Components\TextInput::make('name')->label(__('Denumire'))->required()->columnSpanFull(),
            Forms\Components\TextInput::make('article')->label(__('Cod articol')),
            Forms\Components\TextInput::make('qty')->label(__('Cantitate'))->numeric()->default(1)->required(),
            Forms\Components\Select::make('unit_id')->label(__('UM'))->options(\App\Models\Tenant\Unit::forSelect())->searchable()->default(fn () => \App\Models\Tenant\Unit::where('code','buc')->value('id')),
            Forms\Components\TextInput::make('buy_price')->label(__('Preț achiziție'))->numeric()->required(),
        ]);
    }

    public function table(Table $table): Table
    {
        return $table
            ->recordTitleAttribute('name')
            ->columns([
                Tables\Columns\TextColumn::make('name')->wrap(),
                Tables\Columns\TextColumn::make('article')->placeholder('—'),
                Tables\Columns\TextColumn::make('qty')->label(__('Comandat'))->alignRight(),
                Tables\Columns\TextColumn::make('qty_received')
                    ->label(__('Recepționat'))
                    ->alignRight()
                    ->color(fn ($state, $record) => $record->isFullyReceived() ? 'success' : ((float) $state > 0 ? 'warning' : 'gray'))
                    ->formatStateUsing(fn ($state, $record) => sprintf('%.2f / %.2f', (float) $state, (float) $record->qty)),
                Tables\Columns\TextColumn::make('unit_id')->label(__('UM'))->getStateUsing(fn ($record) => $record->unitLabel()),
                Tables\Columns\TextColumn::make('buy_price')->money('MDL')->alignRight(),
                Tables\Columns\TextColumn::make('total')->money('MDL')->alignRight(),
            ])
            ->headerActions([
                Actions\CreateAction::make()
                    ->label(__('Adaugă articol'))
                    ->modalHeading(__('Adaugă articol în comandă')),
            ])
            ->actions([
                Actions\Action::make('receive_item')
                    ->label(__('Recepționează'))
                    ->icon('heroicon-m-arrow-down-tray')
                    ->color('success')
                    ->visible(fn (PurchaseItem $r) => ! $r->isFullyReceived())
                    ->schema([
                        Forms\Components\Placeholder::make('outstanding')
                            ->label(__('Restanță'))
                            ->content(fn (PurchaseItem $r) => sprintf('%.2f %s', $r->outstanding(), $r->unitLabel() ?: 'buc')),
                        Forms\Components\TextInput::make('qty')
                            ->label(__('Cantitate recepționată'))
                            ->numeric()
                            ->required()
                            ->minValue(0.001)
                            ->default(fn (PurchaseItem $r) => $r->outstanding()),
                        Forms\Components\Select::make('warehouse_id')
                            ->label(__('Depozit țintă'))
                            ->options(fn () => Warehouse::where('is_active', true)->pluck('name', 'id'))
                            ->default(fn (PurchaseItem $r) => $r->purchase?->warehouse_id
                                ?? Warehouse::where('is_default', true)->value('id'))
                            ->required(),
                    ])
                    ->action(function (PurchaseItem $r, array $data) {
                        $wh = $data['warehouse_id'] ? Warehouse::find($data['warehouse_id']) : null;
                        try {
                            $r->purchase->receiveItem($r, (float) $data['qty'], $wh);
                            Notification::make()
                                ->title(__('Recepționat — batch creat'))
                                ->success()
                                ->send();
                        } catch (\Throwable $e) {
                            Notification::make()
                                ->title(__('Eroare la recepție'))
                                ->body($e->getMessage())
                                ->danger()
                                ->send();
                        }
                    }),
                Actions\EditAction::make(),
                Actions\DeleteAction::make(),
            ]);
    }
}