<?php

namespace App\Filament\Admin\Resources;

use App\Enums\IconEnum;
use App\Models\Customer;
use Filament\Forms\Components\DatePicker;
use Filament\Forms\Form;
use Filament\Resources\Resource;
use Filament\Support\Enums\FontWeight;
use Filament\Tables;
use Filament\Tables\Columns\Summarizers\Sum;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Query\Builder;

class CustomerReportResource extends Resource
{
    protected static ?string $model = Customer::class;

    protected static ?string $navigationIcon = IconEnum::CUSTOMER_SALES->value;

    protected static ?string $navigationGroup = 'Reports';

    protected static ?string $navigationLabel = 'Customer Reports';

    protected static ?int $navigationSort = 4;

    public static function form(Form $form): Form
    {
        return $form
            ->schema([
                //
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('company_name')
                    ->label('Customer')
                    ->sortable()
//                    ->searchable()
                    ->extraHeaderAttributes(['class' => 'w-full']),

                Tables\Columns\TextColumn::make('invoices.subtotal')
                    ->label('Subtotal')
                    ->money()
                    ->alignRight()
                    ->getStateUsing(fn (Table $table, Model $record) => $record->invoices()->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('subtotal'))
                    ->summarize(Sum::make('subtotal')
                        ->label('')
                        ->money()
                        ->using(fn (Table $table, $query) => $query->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('subtotal'))
                    ),

                Tables\Columns\TextColumn::make('invoices.hst_amount')
                    ->label('HST')
                    ->money()
                    ->alignRight()
                    ->getStateUsing(fn (Table $table, Model $record) => $record->invoices()->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('hst_amount'))
                    ->summarize(Sum::make('hst_amount')
                        ->label('')
                        ->money()
                        ->using(fn (Table $table, Builder $query) => $query->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('hst_amount'))
                    ),

                Tables\Columns\TextColumn::make('invoices.gst_amount')
                    ->label('GST')
                    ->money()
                    ->alignRight()
                    ->getStateUsing(fn (Table $table, Model $record) => $record->invoices()->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('gst_amount'))
                    ->summarize(Sum::make('gst_amount')
                        ->label('')
                        ->money()
                        ->using(fn (Table $table, $query) => $query->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('gst_amount'))
                    ),

                Tables\Columns\TextColumn::make('invoices.pst_amount')
                    ->label('PST')
                    ->money()
                    ->alignRight()
                    ->getStateUsing(fn (Table $table, Model $record) => $record->invoices()->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('pst_amount'))
                    ->summarize(Sum::make('pst_amount')
                        ->label('')
                        ->money()
                        ->using(fn (Table $table, $query) => $query->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('pst_amount'))
                    ),

                Tables\Columns\TextColumn::make('invoices.total')
                    ->label('Total')
                    ->money()
                    ->weight(FontWeight::Bold)
                    ->alignRight()
                    ->getStateUsing(fn (Table $table, Model $record) => $record->invoices()->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('total'))
                    ->summarize(Sum::make('total')
                        ->label('')
                        ->money()
                        ->using(fn (Table $table, $query) => $query->tap(fn ($q) => self::applyDateFilters($q, $table))->sum('total'))
                    ),
            ])

            ->filters([
                Tables\Filters\Filter::make('created_at')
                    ->form([
                        DatePicker::make('created_at')
                            ->label('From date'),
                    ]),

                Tables\Filters\Filter::make('created_until')
                    ->form([
                        DatePicker::make('created_until')
                            ->label('Until date'),
                    ]),
            ], layout: Tables\Enums\FiltersLayout::AboveContent);
    }

    protected static function applyDateFilters($query, Table $table): void
    {
        $createdAt    = $table->getFilter('created_at')?->getState()['created_at'] ?? null;
        $createdUntil = $table->getFilter('created_until')?->getState()['created_until'] ?? null;

        $query->when($createdAt, fn ($q, $date) => $q->whereDate('created_at', '>=', $date));
        $query->when($createdUntil, fn ($q, $date) => $q->whereDate('created_at', '<=', $date));
    }

    public static function canAccess(): bool
    {
        return auth()->user()->is_admin ?? false;
    }

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

    public static function getPages(): array
    {
        return [
            'index' => \App\Filament\Admin\Resources\CustomerReportResource\Pages\ListCustomerReports::route('/'),
        ];
    }
}