<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;

/** Campagne de communication : une bannière affichée sous la signature pendant une période, pour tous ou pour des groupes AD. */
class Campaign extends Model
{
    public const DEFAULT_WIDTH = 600;

    /** État => libellé affiché dans le back-office. */
    public const STATUSES = [
        'running' => 'En cours',
        'scheduled' => 'Programmée',
        'inactive' => 'Inactive',
        'ended' => 'Terminée',
    ];

    protected $guarded = ['id'];

    protected function casts(): array
    {
        return [
            'starts_at' => 'datetime', 'ends_at' => 'datetime', 'active' => 'boolean',
            'priority' => 'integer', 'width' => 'integer',
        ];
    }

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

    public function groups(): BelongsToMany
    {
        return $this->belongsToMany(DirectoryGroup::class, 'campaign_group');
    }

    public function scopeRunning(Builder $q): Builder
    {
        return $q->where('active', true)->where('starts_at', '<=', now())->where('ends_at', '>=', now());
    }

    /** running | scheduled | inactive | ended — doit rester cohérent avec scopeRunning(). */
    public function status(): string
    {
        $now = now()->startOfSecond(); // même précision que la comparaison SQL de scopeRunning()

        return match (true) {
            $this->ends_at->lt($now) => 'ended',
            ! $this->active => 'inactive',
            $this->starts_at->gt($now) => 'scheduled',
            default => 'running',
        };
    }

    public function displayWidth(): int
    {
        return $this->width ?: self::DEFAULT_WIDTH;
    }
}