<?php

namespace App\Filament\Imports;

use App\Models\Item;
use App\Models\Machine;
use App\Models\Plant;
use App\Models\StickerMappingMaster;
use App\Models\StickerStructureDetail;
use Filament\Actions\Imports\ImportColumn;
use Filament\Actions\Imports\Importer;
use Filament\Actions\Imports\Models\Import;
use Filament\Facades\Filament;
use Illuminate\Support\Str;
use Filament\Actions\Imports\Exceptions\RowImportFailedException;

class StickerMappingMasterImporter extends Importer
{
    protected static ?string $model = StickerMappingMaster::class;

    public static function getColumns(): array
    {
        return [
            ImportColumn::make('plant')
                ->requiredMapping()
                ->exampleHeader('PLANT CODE')
                ->examples(['1000', '1000'])
                ->label('PLANT CODE')
                ->relationship(resolveUsing: 'code')
                ->rules(['required']),
            ImportColumn::make('item')
                ->requiredMapping()
                ->exampleHeader('ITEM CODE')
                ->examples(['123456', '246118'])
                ->label('ITEM CODE')
                ->rules(['required']),
            ImportColumn::make('sticker_structure1_id')
                ->requiredMapping()
                ->exampleHeader('STICKER ID')
                ->examples(['Test Certificate'])
                ->label('STICKER ID')
                ->rules(['required']),
            ImportColumn::make('sticker1_machine_id')
                ->requiredMapping()
                ->exampleHeader('WORK CENTER')
                ->examples(['RMI00213'])
                ->label('WORK CENTER')
                ->rules(['required']),
        ];
    }

    public function resolveRecord(): ?StickerMappingMaster
    {
        $warnMsg = [];
        $plantId = null;
        $stickId = null;

        $plantCod = $this->data['plant'];
        $iCode = $this->data['item'];
        $stickId = trim($this->data['sticker_structure1_id']) ?? null;
        $workCenter = trim($this->data['sticker1_machine_id']) ?? null;

        $user = Filament::auth()->user();

        $operatorName = $user->name;

        if ($plantCod == null || $plantCod == '') {
            $warnMsg[] = "Plant code can't be empty!";
        } elseif ($iCode == null || $iCode == '') {
            $warnMsg[] = "Item Code can't be empty!";
        } elseif ($stickId == null || $stickId == '') {
            $warnMsg[] = "Sticker ID can't be empty!";
        } elseif ($workCenter == null || $workCenter == '') {
            $warnMsg[] = "Work Center can't be empty!";
        }

        if (Str::length($plantCod) > 0 && (Str::length($plantCod) < 4 || ! is_numeric($plantCod) || ! preg_match('/^[1-9]\d{3,}$/', $plantCod))) {
            $warnMsg[] = 'Invalid plant code found!';
        } elseif (Str::length($plantCod) > 0) {
            $plant = Plant::where('code', $plantCod)->first();
            if (! $plant) {
                $warnMsg[] = 'Plant code not found!';
            } else {
                $plantId = $plant->id;
            }
        }

        if (Str::length($iCode) > 0 && (Str::length($iCode) < 6 || ! ctype_alnum($iCode))) {
            $warnMsg[] = 'Invalid item code found!';
        } elseif ($plantId) {
            $itemCode = Item::where('code', $iCode)->first();
            if (! $itemCode) {
                $warnMsg[] = 'Item code not found in item master!';
            } else {
                $itemCode = Item::where('code', $iCode)->where('plant_id', $plantId)->first();
                if (! $itemCode) {
                    $warnMsg[] = 'Item code not found in item master for the given plant!';
                }
            }
        }

        $stickerId = StickerStructureDetail::where('sticker_id', $stickId)->first();

        if(!$stickerId){
            $warnMsg[] = "Sticker ID '$stickId' not found in sticker structure detail!";
        }

        $machineId = Machine::where('plant_id', $plantId)->where('work_center', $workCenter)->first();

        if(!$machineId){
            $warnMsg[] = "Work center '$workCenter' not found in machines table against plant '$plant->code'!";
        }

        if (! empty($warnMsg)) {
            throw new RowImportFailedException(implode(', ', $warnMsg));
        }

        StickerMappingMaster::updateOrCreate([
            'plant_id' => $plantId,
            'item_id' => $itemCode->id,
            'sticker_structure1_id' => $stickerId->id,
            'sticker1_machine_id' => $machineId->id ?? null,
            'created_by' => $operatorName,
            'updated_by' => $operatorName,
        ]);

        return null;
    }

    public static function getCompletedNotificationBody(Import $import): string
    {
        $body = 'Your sticker mapping master import has completed and ' . number_format($import->successful_rows) . ' ' . str('row')->plural($import->successful_rows) . ' imported.';

        if ($failedRowsCount = $import->getFailedRowsCount()) {
            $body .= ' ' . number_format($failedRowsCount) . ' ' . str('row')->plural($failedRowsCount) . ' failed to import.';
        }

        return $body;
    }
}