<?php

namespace App\Filament\Resources;

use App\Filament\Exports\LeakTestReadingExporter;
use App\Filament\Resources\LeakTestReadingResource\Pages;
use App\Models\LeakTestReading;
use App\Models\Plant;
use Filament\Facades\Filament;
use Filament\Forms;
use Filament\Forms\Components\DateTimePicker;
use Filament\Forms\Components\Section;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Form;
use Filament\Forms\Get;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Actions\ExportAction;
use Filament\Tables\Filters\Filter;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\SoftDeletingScope;

class LeakTestReadingResource extends Resource
{
    protected static ?string $model = LeakTestReading::class;

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

    protected static ?string $navigationGroup = 'Testing Panel';

    protected static ?int $navigationSort = 3;

    public static function form(Form $form): Form
    {
        return $form
            ->schema([
                Section::make('')
                    ->schema([
                        Forms\Components\Select::make('plant_id')
                            ->required()
                            ->label('Plant Name')
                            ->relationship('plant', 'name')
                            ->searchable()
                            ->reactive()
                            // ->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::orderBy('code')->pluck('name', 'id')->toArray();
                            })
                            ->default(function () {
                                return optional(LeakTestReading::latest()->first())->plant_id;
                            })
                            ->disabled(fn (Get $get) => ! empty($get('id')))
                            ->afterStateUpdated(function ($state, $set, callable $get) {
                                $plantId = $get('plant_id');

                                $set('lsrPlantError', null);
                                $set('item_code', null);
                                $set('serial_number', null);
                                $set('test_status', null);
                                if (! $plantId) {
                                    $set('lsrPlantError', 'Please select a plant first.');

                                    return;
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('lsrPlantError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('lsrPlantError') ? $get('lsrPlantError') : null)
                            ->hintColor('danger'),
                        Forms\Components\TextInput::make('item_code')
                            ->required()
                            ->label('Item Code')
                            ->placeholder('Scan the valid item code')
                            ->autofocus(true)
                            ->alphaNum()
                            ->minLength(6)
                            ->reactive()
                            ->disabled(fn (Get $get) => ! empty($get('id')))
                            ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                $code = $get('item_code');
                                // Ensure `linestop_id` is not cleared
                                if (! $code) {
                                    $set('lsrCodeError', 'Scan the valid item code.');

                                    return;
                                } else {
                                    if (strlen($code) < 6) {
                                        $set('lsrCodeError', 'Item code must be at least 6 digits.');

                                        return;
                                    } elseif (! ctype_alnum($code)) {
                                        $set('item_code', null);
                                        $set('lsrSerialError', 'Item code must contain only alpha-numeric characters!');
                                    } elseif (! preg_match('/^[a-zA-Z1-9][a-zA-Z0-9]{5,}$/', $code)) {
                                        $set('item_code', null);
                                        $set('lsrCodeError', "Item code should not begin with '0' or letter!");

                                        return;
                                    }
                                    $set('lsrCodeError', null);
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('lsrCodeError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('lsrCodeError') ? $get('lsrCodeError') : null)
                            ->hintColor('danger'),
                        Forms\Components\TextInput::make('serial_number')
                            ->required()
                            ->label('Serial Number')
                            ->placeholder('Scan the valid serial number')
                            ->alphaNum()
                            ->minLength(9)
                            ->reactive()
                            ->disabled(fn (Get $get) => ! empty($get('id')))
                            ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                $serial = $get('serial_number');
                                // Ensure `linestop_id` is not cleared
                                if (! $serial) {
                                    $set('lsrSerialError', 'Scan the valid serial number!');

                                    return;
                                } else {
                                    if (strlen($serial) < 9) {
                                        $set('lsrSerialError', 'Serial number must be at least 9 digits!');

                                        return;
                                    } elseif (! ctype_alnum($serial)) {
                                        $set('serial_number', null);
                                        $set('lsrSerialError', 'Serial number must contain only alpha-numeric characters!');
                                    } elseif (! preg_match('/^[1-9][a-zA-Z0-9]{8,}$/', $serial)) {
                                        $set('serial_number', null);
                                        $set('lsrSerialError', "Serial number should not begin with '0' or letter!");

                                        return;
                                    }
                                    $set('lsrSerialError', null);
                                }
                            })
                            ->extraAttributes(fn ($get) => [
                                'class' => $get('lsrSerialError') ? 'border-red-500' : '',
                            ])
                            ->hint(fn ($get) => $get('lsrSerialError') ? $get('lsrSerialError') : null)
                            ->hintColor('danger'),
                        Forms\Components\Select::make('test_status')
                            ->required()
                            ->label('Test Status')
                            ->searchable()
                            ->reactive()
                            ->options(function (callable $set, callable $get) {
                                $plantId = $get('plant_id');
                                $itemCode = $get('item_code');
                                $serialNumber = $get('serial_number');

                                if (! $plantId || ! $itemCode || ! $serialNumber) {
                                    $set('test_status', null);

                                    return [];
                                }

                                return [
                                    'P' => 'PASS',
                                    'F' => 'FAIL',
                                ];
                            })
                            ->default(function () {
                                $userHas = Filament::auth()->user()->plant_id;

                                return ($userHas && strlen($userHas) > 0) ? 'F' : 'P';
                                // return optional(CharacteristicApproverMaster::latest()->first())->approver_type ?? null;
                            }),
                        Forms\Components\TextInput::make('id')
                            ->hidden()
                            ->readOnly(),
                    ])
                    ->columns(['default' => 1, 'sm' => 2]),
            ]);
    }

    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 + $rowLoop->iteration;
                    }),
                Tables\Columns\TextColumn::make('plant.name')
                    ->label('Plant Name')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('item_code')
                    ->label('Item Code')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('serial_number')
                    ->label('Serial Number')
                    ->alignCenter()
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('test_status')
                    ->label('Test Status')
                    ->alignCenter()
                    ->searchable()
                    ->sortable()
                    ->formatStateUsing(function ($state) {
                        return match ($state) {
                            'P' => 'PASS',
                            'F' => 'FAIL',
                            default => '-',
                        };
                    }),
                Tables\Columns\TextColumn::make('created_at')
                    ->label('Created At')
                    ->alignCenter()
                    ->dateTime()
                    ->sortable(),
                Tables\Columns\TextColumn::make('updated_at')
                    ->label('Updated At')
                    ->alignCenter()
                    ->dateTime()
                    ->sortable(),
                Tables\Columns\TextColumn::make('deleted_at')
                    ->label('Deleted At')
                    ->alignCenter()
                    ->dateTime()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->searchPlaceholder('Search Serial Number')
            ->filters([
                Tables\Filters\TrashedFilter::make(),
                Filter::make('advanced_filters')
                    ->label('Advanced Filters')
                    ->form([
                        Select::make('Plant')
                            ->label('Search by Plant Name')
                            ->nullable()
                            ->options(function (callable $get) {
                                $userHas = Filament::auth()->user()->plant_id;

                                if ($userHas && strlen($userHas) > 0) {
                                    return Plant::where('id', $userHas)->pluck('name', 'id')->toArray();
                                } else {
                                    return Plant::whereHas('leakTestReadings', function ($query) {
                                        $query->whereNotNull('id');
                                    })->orderBy('code')->pluck('name', 'id')->toArray();
                                }
                            })
                            ->searchable()
                            ->reactive()
                            ->afterStateUpdated(function ($state, callable $set, callable $get): void {
                                $set('item_code', null);
                                $set('serial_number', null);
                                $set('test_status', null);
                            }),
                        Select::make('item_code')
                            ->label('Search by Item Code')
                            ->nullable()
                            ->options(function (callable $get) {
                                $plantId = $get('Plant');

                                return $plantId ? LeakTestReading::where('plant_id', $plantId)->pluck('item_code', 'item_code')->toArray() : [];
                            })
                            ->searchable()
                            ->reactive()
                            ->afterStateUpdated(function ($state, callable $set, callable $get): void {
                                $set('serial_number', null);
                                $set('test_status', null);
                            }),
                        TextInput::make('serial_number')
                            ->label('Search by Serial Number')
                            ->placeholder(placeholder: 'Enter Serial Number')
                            ->afterStateUpdated(function ($state, callable $set, callable $get): void {
                                $set('test_status', null);
                            }),
                        Select::make('test_status')
                            ->label('Search by Test Status')
                            ->nullable()
                            ->options(function () {
                                return [
                                    'P' => 'PASS',
                                    'F' => 'FAIL',
                                ];
                            })
                            ->searchable()
                            ->reactive(),
                        DateTimePicker::make(name: 'created_from')
                            ->label('Created From')
                            ->placeholder(placeholder: 'Select From DateTime')
                            ->reactive()
                            ->native(false),
                        DateTimePicker::make('created_to')
                            ->label('Created To')
                            ->placeholder(placeholder: 'Select To DateTime')
                            ->reactive()
                            ->native(false),
                        DateTimePicker::make(name: 'updated_from')
                            ->label('Updated From')
                            ->placeholder(placeholder: 'Select From DateTime')
                            ->reactive()
                            ->native(false),
                        DateTimePicker::make('updated_to')
                            ->label('Updated To')
                            ->placeholder(placeholder: 'Select To DateTime')
                            ->reactive()
                            ->native(false),
                    ])
                    ->query(function ($query, array $data) {
                        // Hide all records initially if no filters are applied
                        if (empty($data['Plant']) && empty($data['item_code']) && empty($data['serial_number']) && empty($data['test_status']) && empty($data['created_from']) && empty($data['created_to']) && empty($data['updated_from']) && empty($data['updated_to'])) {
                            return $query->whereRaw('1 = 0');
                        }

                        if (! empty($data['Plant'])) { // $plant = $data['Plant'] ?? null
                            $query->where('plant_id', $data['Plant']);
                        } else {
                            $userHas = Filament::auth()->user()->plant_id;

                            if ($userHas && strlen($userHas) > 0) {
                                return $query->whereRaw('1 = 0');
                            }
                        }

                        if (! empty($data['item_code'])) {
                            $query->where('item_code', $data['item_code']);
                        }

                        if (! empty($data['serial_number'])) {
                            $query->where('serial_number', 'like', '%'.$data['serial_number'].'%');
                        }

                        if (! empty($data['test_status'])) {
                            $query->where('test_status', $data['test_status']);
                        }

                        if (! empty($data['created_from'])) {
                            $query->where('created_at', '>=', $data['created_from']);
                        }

                        if (! empty($data['created_to'])) {
                            $query->where('created_at', '<=', $data['created_to']);
                        }

                        if (! empty($data['updated_from'])) {
                            $query->where('updated_at', '>=', $data['updated_from']);
                        }

                        if (! empty($data['updated_to'])) {
                            $query->where('updated_at', '<=', $data['updated_to']);
                        }
                    })
                    ->indicateUsing(function (array $data) {
                        $indicators = [];

                        if (! empty($data['Plant'])) {
                            $indicators[] = 'Plant: '.Plant::where('id', $data['Plant'])->value('name');
                        } else {
                            $userHas = Filament::auth()->user()->plant_id;

                            if ($userHas && strlen($userHas) > 0) {
                                return 'Plant: Choose plant to filter records.';
                            }
                        }

                        if (! empty($data['item_code'])) {
                            $indicators[] = 'Item Code: '.$data['item_code'];
                        }

                        if (! empty($data['serial_number'])) {
                            $indicators[] = 'Serial Number: '.$data['serial_number'];
                        }

                        if (! empty($data['test_status'])) {
                            $indicators[] = 'Test Status: '.$data['test_status'];
                        }

                        if (! empty($data['created_from'])) {
                            $indicators[] = 'From: '.$data['created_from'];
                        }

                        if (! empty($data['created_to'])) {
                            $indicators[] = 'To: '.$data['created_to'];
                        }

                        if (! empty($data['updated_from'])) {
                            $indicators[] = 'From: '.$data['updated_from'];
                        }

                        if (! empty($data['updated_to'])) {
                            $indicators[] = 'To: '.$data['updated_to'];
                        }

                        return $indicators;
                    }),
            ])
            ->filtersFormMaxHeight('280px')
            ->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([
                ExportAction::make()
                    ->label('Export Leak Test Readings')
                    ->color('warning')
                    ->exporter(LeakTestReadingExporter::class)
                    ->visible(function () {
                        return Filament::auth()->user()->can('view export leak test reading');
                    }),
            ]);
    }

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

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListLeakTestReadings::route('/'),
            'create' => Pages\CreateLeakTestReading::route('/create'),
            'view' => Pages\ViewLeakTestReading::route('/{record}'),
            'edit' => Pages\EditLeakTestReading::route('/{record}/edit'),
        ];
    }

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