<?php

namespace App\Filament\Pages;

use App\Models\InvoiceDataValidation;
use App\Models\InvoiceOutValidation;
use App\Models\Plant;
use Filament\Pages\Page;
use Filament\Forms\Contracts\HasForms;
use Filament\Forms\Concerns\InteractsWithForms;
use Filament\Forms\Form;
use Filament\Facades\Filament;
use Filament\Forms\Components\Hidden;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\TextInput;
use Filament\Notifications\Notification;
use Filament\Pages\Dashboard\Concerns\HasFiltersForm;
use Illuminate\Support\Facades\Auth;

class InvoicePendingReason extends Page
{
    use HasFiltersForm;
    protected static ?string $navigationIcon = 'heroicon-o-document-text';

    protected static string $view = 'filament.pages.invoice-pending-reason';

    protected static ?string $navigationGroup = 'Manufacturing SD';

    public function mount(): void
    {
       $this->filtersForm->fill([
           'plant_id' => null,
           'document_number' => null,
           'remark' => null,
       ]);
    }

    public function filtersForm(Form $form): Form
    {
        return $form
            ->statePath('filters')
            ->schema([

                Select::make('plant_id')
                    ->label('Plant')
                    ->reactive()
                    ->required()
                    ->columnSpan(1)
                    ->options(function (callable $get) {
                        $userHas = Filament::auth()->user()->plant_id;
                        return ($userHas && strlen($userHas) > 0) ? Plant::where('id', $userHas)->pluck('name', 'id')->toArray() : Plant::pluck('name', 'id')->toArray();
                    })
                    ->afterStateUpdated(function ($state, $set, callable $get,$livewire)  {
                        $plantId = $get('plant_id');
                        $set('document_number', null);
                    })
                    ->hint(fn ($get) => $get('pqPlantError') ? $get('pqPlantError') : null)
                    ->hintColor('danger'),

                Select::make('document_number')
                    ->label('Document Number')
                    ->required()
                    ->reactive()
                    ->columnSpan(1)
                    ->options(function (callable $get) {
                        $plantId = $get('plant_id');
                        if (empty($plantId)) {
                            return [];
                        }

                        $distributions = InvoiceDataValidation::whereNotNull('distribution_channel_desc')
                            ->distinct()
                            ->pluck('distribution_channel_desc')
                            ->filter(fn ($v) => trim($v) !== '')
                            ->values()
                            ->toArray();

                        $distributions[] = '';

                        $pendingInvoices = collect();

                        foreach ($distributions as $distribution) {

                            $invoices = InvoiceDataValidation::where('plant_id', $plantId)
                                ->where('distribution_channel_desc', $distribution)
                                ->select('id', 'document_number')
                                ->get()
                                ->unique('document_number')
                                ->filter(fn ($inv) =>
                                    ! empty($inv->document_number) &&
                                    ! str_contains($inv->document_number, '-')
                                );

                            if (trim($distribution) == '') {
                                $invoices = $invoices->filter(fn ($inv) =>
                                    str_starts_with($inv->document_number, '7')
                                );
                            }

                            if ($invoices->isEmpty()) {
                                continue;
                            }

                            $invoiceNumbers = $invoices->pluck('document_number')
                                ->map(fn ($n) => preg_replace('/\s+/', '', strtoupper($n)))
                                ->toArray();

                            $wentOut = InvoiceOutValidation::whereIn('qr_code', $invoiceNumbers)
                                ->distinct()
                                ->pluck('qr_code')
                                ->map(fn ($n) => preg_replace('/\s+/', '', strtoupper($n)))
                                ->toArray();

                            $pending = $invoices->filter(function ($inv) use ($wentOut) {
                                $doc = preg_replace('/\s+/', '', strtoupper($inv->document_number));
                                return ! in_array($doc, $wentOut, true);
                            });

                            $pendingInvoices = $pendingInvoices->merge($pending);
                        }

                        return $pendingInvoices
                            ->unique('document_number')
                            ->pluck('document_number', 'document_number')
                            ->toArray();
                    })
                    ->afterStateUpdated(function ($state, callable $set, callable $get) {

                    })
                    ->extraAttributes(fn ($get) => [
                        'class' => $get('pqBlockError') ? 'border-red-500' : '',
                    ])
                    ->hint(fn ($get) => $get('pqBlockError') ? $get('pqBlockError') : null)
                    ->hintColor('danger'),
                    TextInput::make('remark')
                    ->label('Remark')
                    ->reactive()
                    ->maxLength(40)
                    ->helperText('Max 40 characters allowed.')
                    ->extraAttributes([
                        'wire:keydown.enter.prevent' => 'addRemark($event.target.value)',
                    ])
                    ->autofocus()
                    ->required(),
                ])
        ->columns(3);
    }

    public function addRemark(){
        $plantId        = $this->filters['plant_id'] ?? null;
        $documentNumber = $this->filters['document_number'] ?? null;
        $remark         = $this->filters['remark'] ?? null;

        if (! $plantId) {
            Notification::make()
                ->title('Plant')
                ->body("please select plant first..!")
                ->danger()
                ->send();
            return;
        }
        if (! $documentNumber) {
            Notification::make()
                ->title('Document Number')
                ->body("please select document number..!")
                ->danger()
                ->send();
            return;
        }
        if ($remark == '') {
            Notification::make()
                ->title('Remark')
                ->body("Remark can't be empty..!")
                ->danger()
                ->send();
            return;
        }

        InvoiceDataValidation::where('plant_id', $plantId)
        ->where('document_number', $documentNumber)
        ->update([
            'remark'     => $remark,
            'updated_at' => now(),
        ]);

        $this->filtersForm->fill([
            'plant_id'        => $plantId,
            'document_number' => $documentNumber,
            'remark'          => null,
        ]);

        Notification::make()
            ->title('Remark updated successfully')
            ->success()
            ->send();
    }

    public static function canAccess(): bool
    {
        return Auth::check() && Auth::user()->can('view invoice pending reason');
    }
}