<?php

namespace App\Models;

use Carbon\Carbon;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class Rainfall extends Model
{
    use HasFactory;

    const MONTHS = [
        1 => 'Janvier',
        2 => 'Février',
        3 => 'Mars',
        4 => 'Avril',
        5 => 'Mai',
        6 => 'Juin',
        7 => 'Juillet',
        8 => 'Août',
        9 => 'Septembre',
        10 => 'Octobre',
        11 => 'Novembre',
        12 => 'Décembre',
    ];

    protected $guarded = [];

    protected $casts = [
        'date' => 'date',
    ];

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public static function getDateKey(string $date, string $period)
    {
        $date = new Carbon($date);
        if ($period === 'year') {
            return $date->year;
        } elseif ($period === 'month') {
            return $date->year * 100 + $date->month;
        } elseif ($period === 'week') {
            return $date->year * 100 + $date->week;
        }

        return $date->format('Y-m-d');
    }

    public static function getDateKeyData(string $date, array $data): array
    {
        $date = new Carbon($date);
        $start = new Carbon($data['start']);
        $endDate = new Carbon($data['end']);
        $startDate = $date->format('Y-m-d 00:00:00');

        if ($data['period'] === 'year') {
            $days = $start->year === $endDate->year ? $start->diffInDays($endDate)
                : (($date->year === $endDate->year || $start->year === $date->year)
                    ? $date->diffInDays($date->year === $endDate->year ? $endDate : $start->endOfYear()) + 1
                    : $date->endOfYear()->day);
            $label = $date->year;
        } elseif ($data['period'] === 'month') {
            $days = ($date->month === $endDate->month || $date->month === $start->month)
                ? $date->diffInDays($date->month === $endDate->month ? $endDate : $start->endOfMonth()) + 1
                : $date->endOfMonth()->day;
            $label = Rainfall::MONTHS[$date->month].' '.$date->year;
        } elseif ($data['period'] === 'week') {
            $days = $date->week === $endDate->week ? $date->diffInDays($endDate) + 1 : 7;
            $label = 'semaine '.$date->week;
        } else {
            $days = 1;
            $label = $date->format('d/m/Y');
        }

        return [
            'start' => $startDate,
            'days' => $days,
            'label' => $label,
        ];
    }
}