<?php

namespace App\Filament\Resources;

use App\Filament\Resources\ContactSubmissionResource\Pages;
use App\Models\ContactSubmission;
use App\Support\FormOptions;
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\Support\Collection;

class ContactSubmissionResource extends Resource
{
    protected static ?string $model = ContactSubmission::class;

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

    protected static ?string $navigationLabel = '聯絡表單';

    protected static ?string $modelLabel = '聯絡表單';

    protected static ?string $pluralModelLabel = '聯絡表單';

    protected static ?string $navigationGroup = '表單管理';

    protected static ?int $navigationSort = 10;

    public static function getNavigationBadge(): ?string
    {
        return static::getModel()::where('status', 'new')->count();
    }

    public static function getNavigationBadgeColor(): ?string
    {
        return 'warning';
    }

    public static function form(Form $form): Form
    {
        return $form
            ->schema([
                Forms\Components\Section::make('基本資訊')
                    ->schema([
                        Forms\Components\TextInput::make('name')
                            ->label('姓名')
                            ->disabled(),
                        Forms\Components\TextInput::make('email')
                            ->label('Email')
                            ->disabled(),
                        Forms\Components\TextInput::make('phone')
                            ->label('電話')
                            ->disabled(),
                        Forms\Components\Placeholder::make('company_label')
                            ->label('組織類型')
                            ->content(fn (ContactSubmission $record): string => 
                                FormOptions::getCompanyTypeLabel($record->company) ?? '-'
                            ),
                        Forms\Components\Placeholder::make('country_region_label')
                            ->label('國家/地區')
                            ->content(fn (ContactSubmission $record): string => 
                                $record->country_region ?? '-'
                            ),
                        Forms\Components\Placeholder::make('industry_label')
                            ->label('產業別')
                            ->content(fn (ContactSubmission $record): string => 
                                FormOptions::getIndustryLabel($record->industry) ?? '-'
                            ),
                        Forms\Components\Placeholder::make('topic_label')
                            ->label('洽詢主題')
                            ->content(fn (ContactSubmission $record): string => 
                                FormOptions::getTopicLabel($record->topic) ?? '-'
                            ),
                        Forms\Components\Placeholder::make('status')
                            ->label('狀態')
                            ->content(fn (ContactSubmission $record): string => match ($record->status) {
                                'new' => '🔵 新訊息',
                                'handled' => '✅ 已處理',
                                'spam' => '🚫 垃圾訊息',
                                default => $record->status,
                            }),
                    ])
                    ->columns(2),

                Forms\Components\Section::make('訊息內容')
                    ->schema([
                        Forms\Components\Textarea::make('message')
                            ->label('訊息')
                            ->rows(8)
                            ->disabled()
                            ->columnSpanFull(),
                    ]),

                Forms\Components\Section::make('系統資訊')
                    ->schema([
                        Forms\Components\Placeholder::make('created_at')
                            ->label('送出時間')
                            ->content(fn (ContactSubmission $record): string => 
                                $record->created_at->format('Y-m-d H:i:s')
                            ),
                        Forms\Components\Placeholder::make('handled_at')
                            ->label('處理時間')
                            ->content(fn (ContactSubmission $record): string => 
                                $record->handled_at?->format('Y-m-d H:i:s') ?? '-'
                            ),
                        Forms\Components\Placeholder::make('form_source')
                            ->label('表單來源')
                            ->content(fn (ContactSubmission $record): string => 
                                $record->form_source ?? '-'
                            ),
                        Forms\Components\KeyValue::make('meta')
                            ->label('元資料 (Meta)')
                            ->disabled()
                            ->columnSpanFull(),
                    ])
                    ->columns(2)
                    ->collapsible()
                    ->collapsed(),
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\BadgeColumn::make('status')
                    ->label('狀態')
                    ->formatStateUsing(fn (string $state): string => match ($state) {
                        'new' => '新訊息',
                        'handled' => '已處理',
                        'spam' => '垃圾訊息',
                        default => $state,
                    })
                    ->colors([
                        'info' => 'new',
                        'success' => 'handled',
                        'danger' => 'spam',
                    ])
                    ->sortable(),
                Tables\Columns\TextColumn::make('name')
                    ->label('姓名')
                    ->searchable()
                    ->sortable()
                    ->limit(30),
                Tables\Columns\TextColumn::make('email')
                    ->label('Email')
                    ->searchable()
                    ->copyable()
                    ->limit(40),
                Tables\Columns\TextColumn::make('topic')
                    ->label('主題')
                    ->formatStateUsing(fn (?string $state): string => 
                        FormOptions::getTopicLabel($state) ?? '-'
                    )
                    ->badge()
                    ->color('primary')
                    ->sortable(),
                Tables\Columns\TextColumn::make('company')
                    ->label('組織類型')
                    ->formatStateUsing(fn (?string $state): string => 
                        FormOptions::getCompanyTypeLabel($state) ?? '-'
                    )
                    ->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('country_region')
                    ->label('國家')
                    ->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('industry')
                    ->label('產業')
                    ->formatStateUsing(fn (?string $state): string => 
                        FormOptions::getIndustryLabel($state) ?? '-'
                    )
                    ->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('created_at')
                    ->label('送出時間')
                    ->dateTime('Y-m-d H:i')
                    ->sortable(),
                Tables\Columns\TextColumn::make('handled_at')
                    ->label('處理時間')
                    ->dateTime('Y-m-d H:i')
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->filters([
                Tables\Filters\SelectFilter::make('status')
                    ->label('狀態')
                    ->options([
                        'new' => '新訊息',
                        'handled' => '已處理',
                        'spam' => '垃圾訊息',
                    ]),
                Tables\Filters\SelectFilter::make('topic')
                    ->label('洽詢主題')
                    ->options(FormOptions::getTopics()),
                Tables\Filters\SelectFilter::make('company')
                    ->label('組織類型')
                    ->options(FormOptions::getCompanyTypes()),
                Tables\Filters\SelectFilter::make('industry')
                    ->label('產業別')
                    ->options(FormOptions::getIndustries()),
                Tables\Filters\Filter::make('created_at')
                    ->form([
                        Forms\Components\DatePicker::make('created_from')
                            ->label('送出日期從'),
                        Forms\Components\DatePicker::make('created_until')
                            ->label('送出日期至'),
                    ])
                    ->query(function (Builder $query, array $data): Builder {
                        return $query
                            ->when(
                                $data['created_from'],
                                fn (Builder $query, $date): Builder => $query->whereDate('created_at', '>=', $date)
                            )
                            ->when(
                                $data['created_until'],
                                fn (Builder $query, $date): Builder => $query->whereDate('created_at', '<=', $date)
                            );
                    }),
            ])
            ->actions([
                Tables\Actions\ViewAction::make(),
                Tables\Actions\Action::make('markAsHandled')
                    ->label('標記為已處理')
                    ->icon('heroicon-o-check-circle')
                    ->color('success')
                    ->requiresConfirmation()
                    ->visible(fn (ContactSubmission $record): bool => $record->status !== 'handled')
                    ->action(fn (ContactSubmission $record) => $record->markAsHandled())
                    ->successNotificationTitle('已標記為已處理'),
                Tables\Actions\Action::make('markAsSpam')
                    ->label('標記為垃圾訊息')
                    ->icon('heroicon-o-x-circle')
                    ->color('danger')
                    ->requiresConfirmation()
                    ->visible(fn (ContactSubmission $record): bool => $record->status !== 'spam')
                    ->action(fn (ContactSubmission $record) => $record->markAsSpam())
                    ->successNotificationTitle('已標記為垃圾訊息'),
            ])
            ->bulkActions([
                Tables\Actions\BulkActionGroup::make([
                    Tables\Actions\BulkAction::make('markAsHandled')
                        ->label('批次標記為已處理')
                        ->icon('heroicon-o-check-circle')
                        ->color('success')
                        ->requiresConfirmation()
                        ->action(fn (Collection $records) => $records->each->markAsHandled())
                        ->deselectRecordsAfterCompletion()
                        ->successNotificationTitle('已批次標記為已處理'),
                    Tables\Actions\BulkAction::make('markAsSpam')
                        ->label('批次標記為垃圾訊息')
                        ->icon('heroicon-o-x-circle')
                        ->color('danger')
                        ->requiresConfirmation()
                        ->action(fn (Collection $records) => $records->each->markAsSpam())
                        ->deselectRecordsAfterCompletion()
                        ->successNotificationTitle('已批次標記為垃圾訊息'),
                    Tables\Actions\DeleteBulkAction::make(),
                ]),
            ])
            ->defaultSort('created_at', 'desc');
    }

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

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListContactSubmissions::route('/'),
            'view' => Pages\ViewContactSubmission::route('/{record}'),
        ];
    }

    public static function canCreate(): bool
    {
        return false;
    }
}