<?php

namespace App\Filament\Company\Pages\Reports;

use App\Filament\Forms\Components\DateRangeSelect;
use App\Models\Company;
use Filament\Actions\Action;
use Filament\Actions\ActionGroup;
use Filament\Forms\Components\Component;
use Filament\Forms\Components\DatePicker;
use Filament\Forms\Set;
use Filament\Pages\Page;
use Filament\Support\Enums\IconPosition;
use Filament\Support\Enums\IconSize;
use Illuminate\Support\Carbon;
use Symfony\Component\HttpFoundation\StreamedResponse;

abstract class BaseReportPage extends Page
{
    public string $startDate = '';

    public string $endDate = '';

    public string $dateRange = '';

    public string $fiscalYearStartDate = '';

    public string $fiscalYearEndDate = '';

    public Company $company;

    public array $options = [];

    public function mount(): void
    {
        $this->company = auth()->user()->currentCompany;
        $this->fiscalYearStartDate = $this->company->locale->fiscalYearStartDate();
        $this->fiscalYearEndDate = $this->company->locale->fiscalYearEndDate();
        $this->dateRange = $this->getDefaultDateRange();
        $this->setDateRange(Carbon::parse($this->fiscalYearStartDate), Carbon::parse($this->fiscalYearEndDate));
        $this->options = ['showAccountCode'];

        $this->loadReportData();
    }

    abstract public function loadReportData(): void;

    abstract public function exportCSV(): StreamedResponse;

    abstract public function exportPDF(): StreamedResponse;

    public function getDefaultDateRange(): string
    {
        return 'FY-' . now()->year;
    }

    public function setDateRange(Carbon $start, Carbon $end): void
    {
        $this->startDate = $start->format('Y-m-d');
        $this->endDate = $end->isFuture() ? now()->format('Y-m-d') : $end->format('Y-m-d');
    }

    protected function getHeaderActions(): array
    {
        return [
            ActionGroup::make([
                Action::make('exportCSV')
                    ->label('CSV')
                    ->action(fn () => $this->exportCSV()),
                Action::make('exportPDF')
                    ->label('PDF')
                    ->action(fn () => $this->exportPDF()),
            ])
                ->label('Export')
                ->button()
                ->outlined()
                ->dropdownWidth('max-w-[7rem]')
                ->dropdownPlacement('bottom-end')
                ->icon('heroicon-c-chevron-down')
                ->iconSize(IconSize::Small)
                ->iconPosition(IconPosition::After),
        ];
    }

    protected function getDateRangeFormComponent(): Component
    {
        return DateRangeSelect::make('dateRange')
            ->label('Date Range')
            ->selectablePlaceholder(false)
            ->startDateField('startDate')
            ->endDateField('endDate');
    }

    protected function getStartDateFormComponent(): Component
    {
        return DatePicker::make('startDate')
            ->label('Start Date')
            ->displayFormat('Y-m-d')
            ->afterStateUpdated(static function (Set $set) {
                $set('dateRange', 'Custom');
            });
    }

    protected function getEndDateFormComponent(): Component
    {
        return DatePicker::make('endDate')
            ->label('End Date')
            ->displayFormat('Y-m-d')
            ->afterStateUpdated(static function (Set $set) {
                $set('dateRange', 'Custom');
            });
    }
}