<?php

namespace App\Filament\Resources;

use App\Filament\Exports\ProductionPlanExporter;
use App\Filament\Imports\ProductionPlanImporter;
use App\Filament\Resources\ProductionPlanResource\Pages;
use App\Filament\Resources\ProductionPlanResource\RelationManagers;
use App\Models\ProductionPlan;
use App\Models\Shift;
use Carbon\Carbon;
use Filament\Facades\Filament;
use Filament\Forms;
use Filament\Forms\Form;
use Filament\Forms\Get;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Actions\ImportAction;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\SoftDeletingScope;
use Filament\Forms\Components\Section;
use Filament\Tables\Actions\ExportAction;
use Illuminate\Support\Facades\Request;

class ProductionPlanResource extends Resource
{
    protected static ?string $model = ProductionPlan::class;

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

    // protected static ?string $navigationParentItem = 'Production Line Stops';

    protected static ?string $navigationGroup = 'Production';

    public static function form(Form $form): Form
    {
        return $form
            ->schema([
                Section::make('')
                    ->schema([
                        Forms\Components\Select::make('plant_id')
                            ->relationship('plant', 'name')
                            ->required()
                            // ->nullable()
                            ->reactive()
                            ->default(function () {
                                return optional(ProductionPlan::latest()->first())->plant_id;
                            })
                            ->disabled(fn (Get $get) => !empty($get('id')))
                            // ->afterStateUpdated(fn ($set) => $set('block_name', null))
                            ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                $plantId = $get('plant_id');
                                $set('block_name', null);
                                if (!$plantId) {
                                    $set('ppPlantError', 'Please select a plant first.');
                                    return;
                                }
                                else
                                {
                                    $set('ppPlantError', null);
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('ppPlantError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('ppPlantError') ? $get('ppPlantError') : null)
                            ->hintColor('danger'),
                        Forms\Components\Select::make('block_name')
                            ->required()
                            // ->nullable()
                            ->label('Block')
                            ->options(function (callable $get) {
                                if (!$get('plant_id')) {
                                    return [];
                                }

                                return \App\Models\Block::where('plant_id', $get('plant_id'))
                                    ->pluck('name', 'id')
                                    ->toArray();
                            })
                            ->reactive()
                            ->default(function () {
                                $latestShiftId = optional(ProductionPlan::latest()->first())->shift_id;
                                return optional(Shift::where('id', $latestShiftId)->first())->block_id;
                            })
                            //->afterStateUpdated(fn ($set) => $set('shift_id', null))
                            ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                if($get('id'))
                                {
                                    $getShift = ProductionPlan::where('id', $get('id'))->first();
                                    $getBlock = Shift::where('id', $getShift->shift_id)->first();
                                    if($getBlock->block_id)
                                    {
                                        $set('block_name', $getBlock->block_id);
                                        $set('ppBlockError', null);
                                    }
                                }

                                $blockId = $get('block_name');
                                $set('shift_id', null);

                                if (!$blockId) {
                                    $set('ppBlockError', 'Please select a block first.');
                                    return;
                                }
                                else
                                {
                                    $set('ppBlockError', null);
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('ppBlockError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('ppBlockError') ? $get('ppBlockError') : null)
                            ->hintColor('danger'),
                        Forms\Components\Select::make('shift_id')
                            ->relationship('shift', 'name')
                            ->required()
                            // ->nullable()
                            ->autofocus(true)
                            ->options(function (callable $get) {
                                if (!$get('plant_id') || !$get('block_name')) {
                                    return [];
                                }

                                return Shift::where('plant_id', $get('plant_id'))
                                    ->where('block_id', $get('block_name'))
                                    ->pluck('name', 'id')
                                    ->toArray();
                            })
                            ->reactive()
                            ->default(function () {
                                return optional(ProductionPlan::latest()->first())->shift_id;
                            })
                            // ->afterStateUpdated(fn ($set) => $set('line_id', null))
                            ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                if($get('id'))
                                {
                                    $getShift = ProductionPlan::where('id', $get('id'))->first();
                                    if($getShift->shift_id)
                                    {
                                        $set('shift_id', $getShift->shift_id);
                                        $set('ppShiftError', null);
                                    }
                                }

                                $curShiftId = $get('shift_id');
                                $set('line_id', null);

                                if (!$curShiftId) {
                                    $set('ppShiftError', 'Please select a shift first.');
                                    return;
                                }
                                else
                                {
                                    $set('ppShiftError', null);
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('ppShiftError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('ppShiftError') ? $get('ppShiftError') : null)
                            ->hintColor('danger'),
                        Forms\Components\Select::make('line_id')
                            ->relationship('line', 'name')
                            ->required()
                            // ->nullable()
                            // ->options(fn (callable $get) =>
                            // \App\Models\Line::where('plant_id', $get('plant_id'))
                            //     ->pluck('name', 'id')
                            //     ->toArray() // Convert collection to array
                            // )
                            ->options(function (callable $get) {
                                if (!$get('plant_id') || !$get('block_name') || !$get('shift_id')) {
                                    return [];
                                }

                                return \App\Models\Line::where('plant_id', $get('plant_id'))
                                    ->pluck('name', 'id')
                                    ->toArray();
                            })
                            ->reactive()
                            // ->default(function () {
                            //     return optional(ProductionPlan::latest()->first())->line_id;
                            // })
                            ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                if($get('id'))
                                {
                                    $getShift = ProductionPlan::where('id', $get('id'))->first();
                                    if($getShift->line_id)
                                    {
                                        $set('line_id', $getShift->line_id);
                                        $set('ppLineError', null);
                                    }
                                }
                                else
                                {
                                    $currentDT = Carbon::now()->toDateTimeString();
                                    $set('created_at', $currentDT);
                                    $set('update_date', null);
                                }

                                $lineId = $get('line_id');
                                // $set('plan_quantity', null);

                                if (!$lineId) {
                                    $set('ppLineError', 'Please select a line first.');
                                    return;
                                }
                                else
                                {
                                    $isUpdate = !empty($get('id'));
                                    if (!$isUpdate)
                                    {
                                        $exists = ProductionPlan::where('plant_id', $get('plant_id'))
                                        ->where('shift_id', $get('shift_id'))
                                        ->where('line_id', $get('line_id'))
                                        ->whereDate('created_at', today())
                                        ->latest()
                                        ->exists();

                                        if ($exists)
                                        {
                                            $set('line_id', null);
                                            $set('ppLineError', 'Production plan already updated.');
                                            return;
                                        }
                                        else
                                        {
                                            $existShifts = ProductionPlan::where('plant_id', $get('plant_id'))
                                            ->where('shift_id', $get('shift_id'))
                                            ->where('line_id', $get('line_id'))
                                            ->whereDate('created_at', Carbon::yesterday())
                                            ->latest()
                                            ->exists();

                                            if ($existShifts) //if ($existShifts->count() > 0)
                                            {
                                                //$currentDate = date('Y-m-d');
                                                $yesterday = date('Y-m-d', strtotime('-1 days'));

                                                $shiftId = Shift::where('id', $get('shift_id'))
                                                ->first();

                                                [$hRs, $miNs] = explode('.', $shiftId->duration) + [0, 0];
                                                $hRs = (int) $hRs;
                                                //   $miNs = (int) $miNs;-*/

                                                $totalMinutes = $hRs * 60 + $miNs;

                                                $from_dt = $yesterday . ' ' . $shiftId->start_time;

                                                $to_dt = date('Y-m-d H:i:s', strtotime($from_dt . " + $totalMinutes minutes"));

                                                $currentDateTime = date('Y-m-d H:i:s');

                                                // Check if current date time is within the range
                                                if ($currentDateTime >= $from_dt && $currentDateTime < $to_dt) {
                                                    //echo "Choosed a valid shift...";

                                                    $set('line_id', null);
                                                    $set('ppLineError', 'Production plan already updated.');
                                                    // $set('ppLineError', 'Valid (From: '.$from_dt.', To: '.$to_dt.')');
                                                    return;
                                                }
                                                else
                                                {
                                                    $currentDate = date('Y-m-d');

                                                    $shiftId = Shift::where('id', $get('shift_id'))
                                                    ->first();

                                                    [$hRs, $miNs] = explode('.', $shiftId->duration) + [0, 0];
                                                    $hRs = (int) $hRs;
                                                    //   $miNs = (int) $miNs;-*/

                                                    $totalMinutes = $hRs * 60 + $miNs;

                                                    $from_dt = $currentDate . ' ' . $shiftId->start_time;

                                                    $to_dt = date('Y-m-d H:i:s', strtotime($from_dt . " + $totalMinutes minutes"));

                                                    $currentDateTime = date('Y-m-d H:i:s');

                                                    // Check if current date time is within the range
                                                    if (!($currentDateTime >= $from_dt && $currentDateTime < $to_dt)) {
                                                        //echo "Choosed a valid shift...";

                                                        $set('line_id', null);
                                                        $set('ppLineError', 'Choosed a invalid shift.');
                                                        // $set('ppLineError', 'Valid (From: '.$from_dt.', To: '.$to_dt.')');
                                                        return;
                                                    }
                                                }

                                                $set('ppLineError', null);
                                                return;
                                            }
                                            else
                                            {
                                                //$currentDate = date('Y-m-d');
                                                $yesterday = date('Y-m-d', strtotime('-1 days'));

                                                $shiftId = Shift::where('id', $get('shift_id'))
                                                ->first();

                                                [$hRs, $miNs] = explode('.', $shiftId->duration) + [0, 0];
                                                $hRs = (int) $hRs;
                                                //   $miNs = (int) $miNs;-*/

                                                $totalMinutes = $hRs * 60 + $miNs;

                                                $from_dt = $yesterday . ' ' . $shiftId->start_time;

                                                $to_dt = date('Y-m-d H:i:s', strtotime($from_dt . " + $totalMinutes minutes"));

                                                $currentDateTime = date('Y-m-d H:i:s');

                                                // Check if current date time is within the range
                                                if ($currentDateTime >= $from_dt && $currentDateTime < $to_dt) {
                                                    //echo "Choosed a valid shift...";

                                                    // here i'm updating created as yesterday
                                                    $set('created_at', $from_dt);
                                                    $set('update_date', '1');

                                                    $set('ppLineError', null);
                                                    // $set('ppLineError', 'Valid (From: '.$from_dt.', To: '.$to_dt.')');
                                                    return;
                                                }
                                                else
                                                {
                                                    $currentDate = date('Y-m-d');

                                                    $shiftId = Shift::where('id', $get('shift_id'))
                                                    ->first();

                                                    [$hRs, $miNs] = explode('.', $shiftId->duration) + [0, 0];
                                                    $hRs = (int) $hRs;
                                                    //   $miNs = (int) $miNs;-*/

                                                    $totalMinutes = $hRs * 60 + $miNs;

                                                    $from_dt = $currentDate . ' ' . $shiftId->start_time;

                                                    $to_dt = date('Y-m-d H:i:s', strtotime($from_dt . " + $totalMinutes minutes"));

                                                    $currentDateTime = date('Y-m-d H:i:s');

                                                    // Check if current date time is within the range
                                                    if (!($currentDateTime >= $from_dt && $currentDateTime < $to_dt)) {
                                                        //echo "Choosed a valid shift...";

                                                        $set('line_id', null);
                                                        $set('ppLineError', 'Choosed a invalid shift.');
                                                        // $set('ppLineError', 'Valid (From: '.$from_dt.', To: '.$to_dt.')');
                                                        return;
                                                    }
                                                }

                                                $set('ppLineError', null);
                                                return;
                                            }

                                            // $exists = ProductionPlan::where('plant_id', $get('plant_id'))
                                            //     //->where('shift_id', $get('shift_id'))
                                            //     ->where('line_id', $get('line_id'))
                                            //     ->whereDate('created_at', today())
                                            //     ->latest()  // Orders by created_at DESC
                                            //     ->first();

                                            // if ($exists)
                                            // {
                                            //     $existingShifts = ProductionPlan::where('plant_id', $get('plant_id'))
                                            //     //->where('shift_id', $get('shift_id'))
                                            //     ->where('line_id', $get('line_id'))
                                            //     // ->whereDate('created_at', today())
                                            //     ->whereDate('created_at', today())
                                            //     ->get();

                                            //     foreach ($existingShifts as $shift) {
                                            //         $curShiftId = $shift->shift_id;

                                            //         $currentDate = date('Y-m-d');

                                            //         $shiftId = \App\Models\Shift::where('id', $curShiftId)
                                            //         ->first();

                                            //         [$hRs, $miNs] = explode('.', $shiftId->duration) + [0, 0];
                                            //         $hRs = (int) $hRs;
                                            //         //   $miNs = (int) $miNs;-*/

                                            //         $totalMinutes = $hRs * 60 + $miNs;

                                            //         $from_dt = $currentDate . ' ' . $shiftId->start_time;

                                            //         $to_dt = date('Y-m-d H:i:s', strtotime($from_dt . " + $totalMinutes minutes"));

                                            //         $currentDateTime = date('Y-m-d H:i:s');

                                            //         // Check if current date time is within the range
                                            //         if ($currentDateTime >= $from_dt && $currentDateTime < $to_dt) {
                                            //             //echo "Choosed a valid shift...";
                                            //             // $set('ppLineError', 'Valid (From: '.$from_dt.', To: '.$to_dt.')');

                                            //             $set('line_id', null);
                                            //             $set('ppLineError', 'Production plan already updated.');
                                            //             return;
                                            //         }
                                            //         // else {
                                            //             //     $set('ppLineError', 'Choosed a invalid shift...');
                                            //             //     return;
                                            //             // }
                                            //     }
                                            //     $set('ppLineError', null);
                                            //     return;
                                            // }
                                        }
                                    }
                                    $set('ppLineError', null);
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('ppLineError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('ppLineError') ? $get('ppLineError') : null)
                            ->hintColor('danger'),
                        Forms\Components\TextInput::make('plan_quantity')
                            ->required()
                            ->integer()
                            ->label('Plan Quantity')
                            ->placeholder('Scan the valid quantity')
                            ->minValue(1)
                            ->reactive()
                            ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                $planQuan = $get('plan_quantity');

                                if(!$get('update_date') )
                                {
                                    if(!$get('id'))
                                    {
                                        $currentDT = Carbon::now()->toDateTimeString();
                                        $set('created_at', $currentDT);
                                    }
                                }

                                if (!$planQuan) {
                                    $set('ppPlanQuanError', 'Scan the valid plan quantity.');
                                    return;
                                }
                                else
                                {
                                    $set('ppPlanQuanError', null);
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('ppPlanQuanError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('ppPlanQuanError') ? $get('ppPlanQuanError') : null)
                            ->hintColor('danger'),
                        Forms\Components\TextInput::make('production_quantity')
                            ->required()
                            ->integer()
                            ->label('Production Quantity')
                            ->readOnly()
                            ->default(0),
                        Forms\Components\TextInput::make('id')
                            ->hidden()
                            ->readOnly(),
                        Forms\Components\TextInput::make('update_date')
                            ->hidden()
                            ->reactive()
                            ->readOnly(),
                        Forms\Components\DateTimePicker::make('created_at')
                            ->label('Created DateTime')
                            ->hidden()
                            ->reactive()
                            ->required()
                            ->readOnly(),
                        Forms\Components\Hidden::make('operator_id')
                            ->default(Filament::auth()->user()->name),
                        ])
                    ->columns(2),
            ]);
    }

    // public function submitForm(array $data)
    // {
    //     if (empty($data['update_date'])) {
    //         $data['created_at'] = now(); // Set current datetime if 'update_date' is empty
    //     }

    //     // Save or process form data
    //     ProductionPlan::create($data);
    // }
    // protected function afterSave(array $data)
    // {
    //     if ($this->model instanceof ProductionPlan && empty($data['update_date'])) {
    //         $this->model->created_at = now(); // Set current datetime if 'update_date' is empty
    //         $this->model->save();
    //     }
    // }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('id')
                    ->label('ID')
                    ->numeric()
                    ->sortable(),
                Tables\Columns\TextColumn::make('plan_quantity')
                    ->numeric()
                    ->sortable(),
                Tables\Columns\TextColumn::make('production_quantity')
                    ->numeric()
                    ->sortable(),
                Tables\Columns\TextColumn::make('line.name')
                    ->sortable()
                    ->searchable(),
                Tables\Columns\TextColumn::make('shift.name')
                    ->sortable()
                    ->searchable(),
                Tables\Columns\TextColumn::make('plant.name')
                    ->sortable()
                    ->searchable(),
                Tables\Columns\TextColumn::make('operator_id')
                    ->label('Operator ID')
                    ->sortable(),
                Tables\Columns\TextColumn::make('created_at')
                    ->dateTime()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('updated_at')
                    ->dateTime()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('deleted_at')
                    ->dateTime()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->filters([
                Tables\Filters\TrashedFilter::make(),
            ])
            ->actions([
                Tables\Actions\ViewAction::make(),
                Tables\Actions\EditAction::make(),
            ])
            ->bulkActions([
                Tables\Actions\BulkActionGroup::make([
                    Tables\Actions\DeleteBulkAction::make(),
                    Tables\Actions\ForceDeleteBulkAction::make(),
                    Tables\Actions\RestoreBulkAction::make(),
                ]),
            ])
            ->headerActions([
                ImportAction::make()
                ->importer(ProductionPlanImporter::class)
                ->maxRows(100000),
            ExportAction::make()
                ->exporter(ProductionPlanExporter::class),
            ]);
    }

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

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListProductionPlans::route('/'),
            'create' => Pages\CreateProductionPlan::route('/create'),
            'view' => Pages\ViewProductionPlan::route('/{record}'),
            'edit' => Pages\EditProductionPlan::route('/{record}/edit'),
        ];
    }

    public static function getEloquentQuery(): Builder
    {
        return parent::getEloquentQuery()
            ->withoutGlobalScopes([
                SoftDeletingScope::class,
            ]);
    }
}