<?php

namespace App\Services;

use Illuminate\Support\Facades\Validator;
use Illuminate\Validation\Rule;

class SyntheticAiAssessment
{
    /** @param array<int,array<string,mixed>> $claims
     * @return array<string,mixed>
     */
    public function assess(array $claims): array
    {
        $facts = app(SyntheticAiRehearsal::class)->preview()['facts'];
        $ids = array_column($facts, 'id');
        Validator::make(['claims' => $claims], ['claims' => 'required|array|list|min:1|max:3', 'claims.*' => 'required|array:text,source_ids',
            'claims.*.text' => 'required|string|max:1000', 'claims.*.source_ids' => 'required|array|list|min:1|max:3',
            'claims.*.source_ids.*' => ['required', 'string', Rule::in($ids)]])->validate();
        $byId = array_column($facts, 'text', 'id');
        $cited = [];
        $exact = 0;
        foreach ($claims as $claim) {
            $sourceIds = array_values(array_unique($claim['source_ids']));
            $cited = [...$cited, ...$sourceIds];
            $exact += in_array(trim($claim['text']), array_map(fn ($id) => $byId[$id], $sourceIds), true) ? 1 : 0;
        }
        $missing = array_values(array_diff($ids, $cited));

        return ['method' => 'synthetic_ai_assessment_v1', 'facts' => count($facts), 'claims' => count($claims),
            'cited_facts' => count(array_unique($cited)), 'uncited_fact_ids' => $missing, 'citation_coverage_complete' => $missing === [],
            'exact_source_text_matches' => $exact, 'requires_human_review' => true, 'semantic_accuracy' => 'not_automatically_verified'];
    }
}