<?php

declare(strict_types=1);

namespace App\Models;

use App\Support\Concerns\DerivesWorkspaceIdFromTenant;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class EvidenceSnapshotItem extends Model
{
    use DerivesWorkspaceIdFromTenant;
    use HasFactory;

    protected $guarded = [];

    /**
     * @return array<string, string>
     */
    protected function casts(): array
    {
        return [
            'required' => 'boolean',
            'measured_at' => 'datetime',
            'freshness_at' => 'datetime',
            'summary_payload' => 'array',
            'sort_order' => 'integer',
        ];
    }

    /**
     * @return BelongsTo<EvidenceSnapshot, $this>
     */
    public function snapshot(): BelongsTo
    {
        return $this->belongsTo(EvidenceSnapshot::class, 'evidence_snapshot_id');
    }

    /**
     * @return BelongsTo<Tenant, $this>
     */
    public function tenant(): BelongsTo
    {
        return $this->belongsTo(Tenant::class);
    }

    /**
     * @return list<array<string, mixed>>
     */
    public function canonicalControlReferences(): array
    {
        $payload = is_array($this->summary_payload) ? $this->summary_payload : [];
        $references = $payload['canonical_controls'] ?? [];

        return is_array($references)
            ? array_values(array_filter($references, static fn (mixed $reference): bool => is_array($reference)))
            : [];
    }
}