<?php

namespace App\Filament\Resources;

use App\Filament\Resources\RequestCharacteristicResource\Pages;
use App\Models\CharacteristicApproverMaster;
use App\Models\Item;
use App\Models\Machine;
use App\Models\RequestCharacteristic;
use Filament\Facades\Filament;
use Filament\Forms;
use Filament\Forms\Form;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\SoftDeletingScope;
use Illuminate\Validation\Rule;

class RequestCharacteristicResource extends Resource
{
    protected static ?string $model = RequestCharacteristic::class;

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

    protected static ?string $navigationGroup = 'Laser Marking';

    public static function form(Form $form): Form
    {

        // $disableField = function ($get) {
        //     $currentUser = Filament::auth()->user();
        //     $approverId = $get('characteristic_approver_master_id');

        //     if (!$approverId) return true; // disable if no approver selected

        //     $approver = CharacteristicApproverMaster::find($approverId);
        //     if (!$approver) return true;

        //     // Enable if Super Admin
        //     if ($currentUser && $currentUser->hasRole('Super Admin')) {
        //         return false; // not disabled
        //     }

        //     // Enable only if current user is one of the approvers
        //     $userName = $currentUser?->name;

        //     return !in_array($userName, [
        //         $approver->name1,
        //         $approver->name2,
        //         $approver->name3,
        //     ]);
        // };

        return $form
            ->schema([
                Forms\Components\Select::make('plant_id')
                    ->label('Plant')
                    ->relationship('plant', 'name')
                    ->required()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\Select::make('machine_id')
                    ->label('Work Center')
                    // ->relationship('machine', 'name')
                    ->reactive()
                    ->searchable()
                    ->options(function (callable $get) {
                        $plantId = $get('plant_id');
                        if (empty($plantId)) {
                            return [];
                        }

                        return Machine::where('plant_id', $plantId)->pluck('work_center', 'id');
                    })
                    ->required()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\TextInput::make('work_flow_id')
                    ->label('Work Flow ID')
                    ->readOnly()
                    ->reactive(),
                // ->rule(function (callable $get) {
                //     return Rule::unique('request_characteristics', 'work_flow_id')
                //         ->where('plant_id', $get('plant_id'))
                //         ->ignore($get('id'));
                // }),
                Forms\Components\Select::make('item_id')
                    ->label('Item')
                    // ->relationship('item', 'id')
                    ->reactive()
                    ->searchable()
                    ->options(function (callable $get) {
                        $plantId = $get('plant_id');
                        if (empty($plantId)) {
                            return [];
                        }

                        return Item::where('plant_id', $plantId)->pluck('code', 'id');
                    })
                    ->required()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\Select::make('characteristic_approver_master_id')
                    ->label('Characteristic Approver')
                    // ->relationship('characteristicApproverMaster', 'id')
                    ->reactive()
                    ->searchable()
                    ->options(function (callable $get) {
                        $plantId = $get('plant_id');

                        $machineId = $get('machine_id');

                        if (! $plantId) {
                            return [];
                        }

                        $approvers = CharacteristicApproverMaster::where('plant_id', $plantId)
                            ->where('machine_id', $machineId)
                            ->get();

                        $options = [];

                        foreach ($approvers as $approver) {
                            if ($approver->name1) {
                                $options[$approver->id.'_name1'] = $approver->name1;
                            }
                            if ($approver->name2) {
                                $options[$approver->id.'_name2'] = $approver->name2;
                            }
                            if ($approver->name3) {
                                $options[$approver->id.'_name3'] = $approver->name3;
                            }
                        }

                        return $options;
                    })
                    ->dehydrateStateUsing(function ($state, callable $set) {

                        if (empty($state) || ! str_contains($state, '_')) {
                            return $state;
                        }

                        $parts = explode('_', $state);

                        if (count($parts) != 2) {
                            return null;
                        }

                        [$id, $level] = $parts;

                        $set('approver_level', $level);

                        return (int) $id;
                    })
                    ->required()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\TextInput::make('aufnr')
                    ->label('Aufnr')
                    ->reactive()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\TextInput::make('characteristic_name')
                    ->label('Characteristic Name')
                    ->reactive()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\TextInput::make('current_value')
                    ->label('Current Value')
                    ->reactive()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\TextInput::make('update_value')
                    ->label('Update Value')
                    ->reactive()
                    ->disabled(fn ($get) => self::isFieldDisabled($get)),
                Forms\Components\Select::make('approver_status1')
                    ->label('Approver Status 1')
                    ->reactive()
                    ->options([
                        'Approved' => 'Approved',
                        'Hold' => 'Hold',
                        'Rejected' => 'Rejected',
                    ])
                    ->disabled(function ($get) {
                        $currentUser = Filament::auth()->user();
                        $approverId = $get('characteristic_approver_master_id');

                        if (! $approverId) {
                            return true;
                        }

                        if (str_contains($approverId, '_')) {
                            [$approverId, $level] = explode('_', $approverId);
                        }

                        $approver = CharacteristicApproverMaster::find($approverId);
                        if (! $approver) {
                            return true;
                        }

                        // Super Admin can edit any
                        if ($currentUser && $currentUser->hasRole('Super Admin')) {
                            return false; // field enabled
                        }

                        // Otherwise, enable only if the user's name matches
                        return $approver->name1 != $currentUser?->name;
                    }),
                Forms\Components\TextInput::make('approver_remark1')
                    ->label('Approver Remark 1')
                    ->reactive(),
                Forms\Components\DateTimePicker::make('approved1_at')
                    ->label('Approved At 1')
                    ->reactive()
                    ->disabled(function ($get) {
                        $currentUser = Filament::auth()->user(); // logged-in user
                        $approverId = $get('characteristic_approver_master_id');

                        if (! $approverId) {
                            return true;
                        }

                        if (str_contains($approverId, '_')) {
                            [$approverId, $level] = explode('_', $approverId);
                        }

                        $approver = CharacteristicApproverMaster::find($approverId);
                        if (! $approver) {
                            return true;
                        }
                        if ($currentUser && $currentUser->hasRole('Super Admin')) {
                            return false;
                        }

                        return $approver->name1 != $currentUser?->name;
                    }),
                Forms\Components\Select::make('approver_status2')
                    ->label('Approver Status 2')
                    ->reactive()
                    ->afterStateUpdated(function ($state, callable $set, callable $get) {
                        if ($state && empty($get('approved2_at'))) {
                            $set('approved2_at', now());
                        }
                    })
                    ->options([
                        'Approved' => 'Approved',
                        'Hold' => 'Hold',
                        'Rejected' => 'Rejected',
                    ])
                    ->disabled(function ($get) {
                        $currentUser = Filament::auth()->user(); // get the User object
                        $approverId = $get('characteristic_approver_master_id');

                        if (! $approverId) {
                            return true;
                        }

                        if (str_contains($approverId, '_')) {
                            [$approverId, $level] = explode('_', $approverId);
                        }

                        $approver = CharacteristicApproverMaster::find($approverId);
                        if (! $approver) {
                            return true;
                        }

                        // Super Admin can always edit
                        if ($currentUser && $currentUser->hasRole('Super Admin')) {
                            return false; // ENABLE field
                        }

                        // Otherwise, enable only if the user's name matches
                        return $approver->name2 != $currentUser?->name;
                    }),
                Forms\Components\TextInput::make('approver_remark2')
                    ->label('Approver Remark 2')
                    ->reactive(),
                Forms\Components\DateTimePicker::make('approved2_at')
                    ->label('Approverd At 2')
                    ->reactive()
                    ->disabled(function ($get) {
                        $currentUser = Filament::auth()->user(); // logged-in user
                        $approverId = $get('characteristic_approver_master_id');

                        if (! $approverId) {
                            return true;
                        }

                        if (str_contains($approverId, '_')) {
                            [$approverId, $level] = explode('_', $approverId);
                        }

                        $approver = CharacteristicApproverMaster::find($approverId);
                        if (! $approver) {
                            return true;
                        }
                        if ($currentUser && $currentUser->hasRole('Super Admin')) {
                            return false;
                        }

                        return $approver->name2 != $currentUser?->name;
                    })
                    ->dehydrated(true),
                Forms\Components\Select::make('approver_status3')
                    ->label('Approver Status 3')
                    ->reactive()
                    ->options([
                        'Approved' => 'Approved',
                        'Hold' => 'Hold',
                        'Rejected' => 'Rejected',
                    ])
                    ->disabled(function ($get) {
                        $currentUser = Filament::auth()->user();
                        $approverId = $get('characteristic_approver_master_id');

                        if (! $approverId) {
                            return true;
                        }

                        if (str_contains($approverId, '_')) {
                            [$approverId, $level] = explode('_', $approverId);
                        }

                        $approver = CharacteristicApproverMaster::find($approverId);
                        if (! $approver) {
                            return true;
                        }

                        if ($currentUser->hasRole('Super Admin')) {
                            return false;
                        } else {
                            return $approver->name3 != $currentUser?->name;
                        }

                    }),
                Forms\Components\TextInput::make('approver_remark3')
                    ->label('Approver Remark 3')
                    ->reactive(),
                Forms\Components\DateTimePicker::make('approved3_at')
                    ->label('Approverd At 3')
                    ->reactive()
                    ->disabled(function ($get) {
                        $currentUser = Filament::auth()->user(); // logged-in user
                        $approverId = $get('characteristic_approver_master_id');

                        if (! $approverId) {
                            return true;
                        }

                        if (str_contains($approverId, '_')) {
                            [$approverId, $level] = explode('_', $approverId);
                        }

                        $approver = CharacteristicApproverMaster::find($approverId);
                        if (! $approver) {
                            return true;
                        }
                        if ($currentUser && $currentUser->hasRole('Super Admin')) {
                            return false;
                        }

                        return $approver->name3 != $currentUser?->name;
                    }),
                Forms\Components\Hidden::make('created_by')
                    ->label('Created By')
                    ->default(Filament::auth()->user()?->name),
                Forms\Components\Hidden::make('updated_by')
                    ->label('Updated By')
                    ->default(Filament::auth()->user()?->name),
                Forms\Components\TextInput::make('id')
                    ->hidden()
                    ->readOnly(),
            ]);
    }

    protected static function isFieldDisabled($get): bool
    {
        $currentUser = Filament::auth()->user();
        $approverId = $get('characteristic_approver_master_id');

        if (! $approverId) {
            return false;
        }

        if (str_contains($approverId, '_')) {
            [$approverId, $level] = explode('_', $approverId);
        }

        $approver = CharacteristicApproverMaster::find($approverId);
        if (! $approver) {
            return false;
        }

        if ($currentUser && $currentUser->hasRole('Super Admin')) {
            return false;
        }

        $userName = $currentUser?->name;

        return in_array($userName, [
            $approver->name1,
            $approver->name2,
            $approver->name3,
        ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('No.')
                    ->label('No.')
                    ->getStateUsing(function ($record, $livewire, $column, $rowLoop) {
                        $paginator = $livewire->getTableRecords();
                        $perPage = method_exists($paginator, 'perPage') ? $paginator->perPage() : 10;
                        $currentPage = method_exists($paginator, 'currentPage') ? $paginator->currentPage() : 1;

                        return ($currentPage - 1) * $perPage + $rowLoop->iteration;
                    }),
                Tables\Columns\TextColumn::make('work_flow_id')
                    ->label('Work Flow ID')
                    ->alignCenter()
                    ->searchable(), // isIndividual: true
                Tables\Columns\TextColumn::make('plant.name')
                    ->label('Plant')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('machine.work_center')
                    ->label('Work Center')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('item.code')
                    ->label('Item Code')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('aufnr')
                    ->label('Aufnr')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('characteristic_name')
                    ->label('Characteristic Name')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('current_value')
                    ->label('Current Value')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('update_value')
                    ->label('Update Value')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('characteristicApproverMaster.name1')
                    ->label('Approver Name 1')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('approver_status1')
                    ->label('Approver Status 1')
                    // ->color('success')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('approved1_at')
                    ->label('Approver At 1')
                    ->alignCenter()
                    ->dateTime()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('characteristicApproverMaster.name2')
                    ->label('Approver Name 2')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('approver_status2')
                    ->label('Approver Status 2')
                    // ->color('danger')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('approved2_at')
                    ->label('Approver At 2')
                    ->alignCenter()
                    ->dateTime()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('characteristicApproverMaster.name3')
                    ->label('Approver Name 3')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('approver_status3')
                    ->label('Approver Status 3')
                    // ->color('primary')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('approved3_at')
                    ->label('Approver At 3')
                    ->alignCenter()
                    ->dateTime()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('created_at')
                    ->dateTime()
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('created_by')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('updated_at')
                    ->dateTime()
                    ->alignCenter()
                    ->searchable()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('updated_by')
                    ->alignCenter()
                    ->searchable()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('deleted_at')
                    ->dateTime()
                    ->alignCenter()
                    ->searchable()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->searchPlaceholder('Search Work Flow ID')
            ->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(),
                ]),
            ]);
    }

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

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListRequestCharacteristics::route('/'),
            'create' => Pages\CreateRequestCharacteristic::route('/create'),
            'view' => Pages\ViewRequestCharacteristic::route('/{record}'),
            'edit' => Pages\EditRequestCharacteristic::route('/{record}/edit'),
        ];
    }

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