<?php

namespace App\Models;

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

class TicketGrabVenueReleaseDay extends Model
{
    protected $table = 'ticket_grab_venue_release_days';

    protected $fillable = [
        'ticket_grab_event_id',
        'venue_id',
        'release_date',
        'day_quota',
        'booked_count',
        'carry_in',
    ];

    protected $casts = [
        'release_date' => 'date',
        'day_quota' => 'integer',
        'booked_count' => 'integer',
        'carry_in' => 'integer',
    ];

    public function ticketGrabEvent(): BelongsTo
    {
        return $this->belongsTo(TicketGrabEvent::class, 'ticket_grab_event_id');
    }

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

    public function availableRemaining(): int
    {
        return max(0, (int) $this->carry_in + (int) $this->day_quota - (int) $this->booked_count);
    }

    /** 昨日及以前未约完的票会滚入次日，在后台展示时「过去放票日」余量为 0。 */
    public function remainingForDisplay(): int
    {
        $tz = (string) config('app.timezone');
        $today = Carbon::now($tz)->toDateString();
        $rd = $this->release_date instanceof Carbon
            ? $this->release_date->format('Y-m-d')
            : Carbon::parse($this->release_date)->format('Y-m-d');
        if ($rd < $today) {
            return 0;
        }

        return $this->availableRemaining();
    }

    public function totalDayPool(): int
    {
        return (int) $this->carry_in + (int) $this->day_quota;
    }
}