<?php

namespace App\Filament\Widgets;

use Filament\Widgets\ChartWidget;

class ItemOverview extends ChartWidget
{
    protected static ?string $heading = 'Chart';

    protected int|string|array $columnSpan = 'full';

    //protected $listeners = ['filtersUpdated' => '$refresh']; // Listen for filter updates

    protected function getData(): array
    {
        $activeFilter = $this->filter;
        // Get filter values from session
        $selectedPlant = session('selected_plant');
        $selectedLine = session('selected_line');

        $query = \DB::table('production_quantities')
        ->join('plants', 'production_quantities.plant_id', '=', 'plants.id') // Join plants table
        ->join('lines', 'production_quantities.line_id', '=', 'lines.id') // Join lines table
        ->selectRaw('EXTRACT(HOUR FROM production_quantities.created_at) AS hour, count(*) AS total_quantity')
        ->whereBetween('production_quantities.created_at', [now()->startOfDay(), now()->endOfDay()])
        ->when($selectedPlant, function ($q) use ($selectedPlant) {
            return $q->where('plants.id', $selectedPlant);
        })
        ->when($selectedLine, function ($q) use ($selectedLine) {
            return $q->where('lines.id', $selectedLine);
        })
        ->groupByRaw('EXTRACT(HOUR FROM production_quantities.created_at)')
        ->orderByRaw('EXTRACT(HOUR FROM production_quantities.created_at)')
        ->pluck('total_quantity', 'hour')
        ->toArray();

        // // Ensure all 24 hours are covered, filling missing ones with zero
        // $data = array_replace(array_fill(8, 24, 0), $query);

        // return [
        //     'datasets' => [
        //         [
        //             'label' => 'Hourly Production',
        //             'data' => array_values($data),
        //             'borderColor' => 'rgba(75, 192, 192, 1)',
        //             'backgroundColor' => 'rgba(75, 192, 192, 0.2)',
        //             'fill' => false,
        //             'tension' => 0.3,
        //         ],
        //     ],
        //    // 'labels' => array_map(fn ($hour) => ($hour == 0 ? '12 AM' : ($hour == 12 ? '12 PM' : ($hour < 12 ? "{$hour} AM" : ($hour - 12) . " PM"))), array_keys($data)),
        //     // Labels in 24-hour format
        //     'labels' => array_map(fn ($hour) => date("g A", strtotime("$hour:00")), array_keys($data)), // Improved hour formatting
        //     ];

    $allHours = array_fill(0, 24, 0);
    $data = array_replace($allHours, $query);

    $shiftedKeys = range(8, 23); // 8 AM to 11 PM
    $shiftedKeys = array_merge($shiftedKeys, range(0, 8));

    $orderedData = array_map(fn($hour) => $data[$hour], $shiftedKeys);

    return [
        'datasets' => [
            [
                'label' => 'Hourly Production',
                'data' => array_values($orderedData),
                'borderColor' => 'rgba(75, 192, 192, 1)',
                'backgroundColor' => 'rgba(75, 192, 192, 0.2)',
                'fill' => false,
                'tension' => 0.3,
            ],
        ],
        // Correct label sequence from 8 AM to 7 AM
        'labels' => array_map(fn ($hour) => date("g A", strtotime("$hour:00")), $shiftedKeys),
    ];

    }

    protected function getType(): string
    {
        return 'line';
    }

    protected function getOptions(): array
    {
        return [
            'scales' => [
                'y' => [
                    'beginAtZero' => true, //Start Y-axis from 0
                    'ticks' => [
                        'stepSize' => 0.5,
                    ],
                ],
            ],
        ];
    }

    protected function getFilters(): ?array
    {
        return [
            'today' => 'Today',
        ];
    }

}