<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;

class RestoreRun extends Model
{
    use HasFactory;
    use SoftDeletes;

    protected $guarded = [];

    protected $casts = [
        'is_dry_run' => 'boolean',
        'requested_items' => 'array',
        'preview' => 'array',
        'results' => 'array',
        'metadata' => 'array',
        'group_mapping' => 'array',
        'started_at' => 'datetime',
        'completed_at' => 'datetime',
    ];

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

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

    // Group mapping helpers
    public function hasGroupMapping(): bool
    {
        return ! empty($this->group_mapping);
    }

    public function getMappedGroupId(string $sourceGroupId): ?string
    {
        return $this->group_mapping[$sourceGroupId] ?? null;
    }

    public function isGroupSkipped(string $sourceGroupId): bool
    {
        return $this->group_mapping[$sourceGroupId] === 'SKIP';
    }

    public function getUnmappedGroupIds(array $sourceGroupIds): array
    {
        return array_diff($sourceGroupIds, array_keys($this->group_mapping ?? []));
    }

    public function addGroupMapping(string $sourceGroupId, string $targetGroupId): void
    {
        $mapping = $this->group_mapping ?? [];
        $mapping[$sourceGroupId] = $targetGroupId;
        $this->group_mapping = $mapping;
    }

    // Assignment restore outcome helpers
    public function getAssignmentRestoreOutcomes(): array
    {
        return $this->results['assignment_outcomes'] ?? [];
    }

    public function getSuccessfulAssignmentsCount(): int
    {
        return count(array_filter(
            $this->getAssignmentRestoreOutcomes(),
            fn ($outcome) => $outcome['status'] === 'success'
        ));
    }

    public function getFailedAssignmentsCount(): int
    {
        return count(array_filter(
            $this->getAssignmentRestoreOutcomes(),
            fn ($outcome) => $outcome['status'] === 'failed'
        ));
    }

    public function getSkippedAssignmentsCount(): int
    {
        return count(array_filter(
            $this->getAssignmentRestoreOutcomes(),
            fn ($outcome) => $outcome['status'] === 'skipped'
        ));
    }
}