<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;

class AbTest extends Model
{
    use HasFactory;

    protected $fillable = [
        'name',
        'key',
        'description',
        'is_active',
        'variants',
        'starts_at',
        'ends_at',
        'target_audience',
    ];

    protected function casts(): array
    {
        return [
            'is_active' => 'boolean',
            'variants' => 'array',
            'starts_at' => 'datetime',
            'ends_at' => 'datetime',
            'target_audience' => 'array',
        ];
    }

    public function assignments(): HasMany
    {
        return $this->hasMany(AbTestAssignment::class);
    }

    public function events(): HasMany
    {
        return $this->hasMany(AbTestEvent::class);
    }

    public function isActive(): bool
    {
        if (!$this->is_active) {
            return false;
        }

        $now = now();
        
        if ($this->starts_at && $now->lt($this->starts_at)) {
            return false;
        }

        if ($this->ends_at && $now->gt($this->ends_at)) {
            return false;
        }

        return true;
    }
}