<?php

namespace App\Traits\Models;

use Carbon\Carbon;

/**
 * If there is a static function in a trait (named boot[TraitName]),
 * it will be executed as the boot() function would on an Eloquent model.
 * Futhermore, event in the Model observer doesn't erase actual events in the model,
 * but adds them.
 */
trait PlanificatedStatus
{
    /**
     * Adjusts model status using current status and publish dates.
     *
     * @param self $model
     * @return void
     */
    private static function makeStatusSense(self $model): void
    {
        /** @var \Carbon\Carbon|null */
        $publish_at = $model->publish_at;
        /** @var \Carbon\Carbon|null */
        $unpublish_at = $model->unpublish_at;
        $wantedStatus = $model->published;
        if ($publish_at or $unpublish_at) {
            $model->published = $model->planificated_status;
        }
        if ($wantedStatus !== $model->published) {
            $previousMessage = session()->get('bo.info', '');
            session()->flash('bo.info', \trans(
                'La publication est modifiée en concordance avec les dates enregistrées.
                Pour modifier l\'état de publication, veuillez modifier ou enlever les dates correspondantes.'
            ) . " \n{$previousMessage}");
        }
    }

    /**
     * Getter the current status following planification dates planificated_status.
     *
     * @return boolean
     */
    public function getPlanificatedStatusAttribute(): bool
    {
        /** @var \Carbon\Carbon|null */
        $publish_at = $this->publish_at;
        /** @var \Carbon\Carbon|null */
        $unpublish_at = $this->unpublish_at;
        if ($publish_at and $unpublish_at) {
            return $unpublish_at->greaterThanOrEqualTo(Carbon::now()) and $publish_at->lessThan(Carbon::now());
        }
        if ($publish_at) {
            return $publish_at->lessThan(Carbon::now());
        }
        if ($unpublish_at) {
            return $unpublish_at->greaterThanOrEqualTo(Carbon::now());
        }
        return false;
    }
}