<?php

declare(strict_types=1);

namespace App\Services\TenantConfiguration;

use App\Support\OperationRunOutcome;
use App\Support\TenantConfiguration\CaptureOutcome;

final class CoverageCaptureOutcomeSummarizer
{
    /**
     * @param  list<array{canonical_type: string, outcome: string, item_count?: int, reason_code?: string|null}>  $outcomes
     * @return array{summary_counts: array<string, int>, run_outcome: string, failures: list<array{code: string, message: string, resource_type?: string}>}
     */
    public function summarize(array $outcomes): array
    {
        $summary = [
            'total' => count($outcomes),
            'processed' => count($outcomes),
            'succeeded' => 0,
            'skipped' => 0,
            'failed' => 0,
            'errors_recorded' => 0,
        ];
        $failures = [];

        foreach ($outcomes as $outcomeRow) {
            $outcome = CaptureOutcome::tryFrom((string) $outcomeRow['outcome']);

            if ($outcome === CaptureOutcome::Captured) {
                $summary['succeeded']++;

                continue;
            }

            if ($outcome?->isFailure()) {
                $summary['failed']++;
                $summary['errors_recorded']++;
                $failures[] = [
                    'code' => (string) ($outcomeRow['reason_code'] ?? CaptureOutcome::Failed->value),
                    'message' => sprintf('Capture failed for %s.', (string) $outcomeRow['canonical_type']),
                    'resource_type' => (string) $outcomeRow['canonical_type'],
                ];

                continue;
            }

            $summary['skipped']++;
        }

        return [
            'summary_counts' => $summary,
            'run_outcome' => $this->runOutcome($summary),
            'failures' => $failures,
        ];
    }

    /**
     * @param  array<string, int>  $summary
     */
    private function runOutcome(array $summary): string
    {
        if (($summary['failed'] ?? 0) > 0 && ($summary['succeeded'] ?? 0) > 0) {
            return OperationRunOutcome::PartiallySucceeded->value;
        }

        if (($summary['failed'] ?? 0) > 0) {
            return OperationRunOutcome::Failed->value;
        }

        if (($summary['succeeded'] ?? 0) > 0) {
            return OperationRunOutcome::Succeeded->value;
        }

        return OperationRunOutcome::Blocked->value;
    }
}