<?php

namespace App\Helpers;

use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;

class TgicsHelper
{
    /**
     * Batch survey counts from TGICS API keyed by contact_id.
     *
     * @param  array<int, string>  $contactIds
     * @return array{counts: array<string, int>, total: int}
     */
    public static function getSurveyCounts(array $contactIds): array
    {
        $ids = array_values(array_unique(array_filter(array_map(static function ($id) {
            return trim((string) $id);
        }, $contactIds))));

        if (count($ids) === 0) {
            return ['counts' => [], 'total' => 0];
        }

        $base = rtrim((string) env('TGICS_API_BASE', ''), '/');
        if ($base === '') {
            Log::warning('TGICS_API_BASE is not configured; survey counts defaulting to 0');
            return ['counts' => array_fill_keys($ids, 0), 'total' => 0];
        }

        try {
            $response = Http::timeout(8)->acceptJson()->get($base.'/api/surveys/counts', [
                'contact_ids' => implode(',', $ids),
            ]);

            if (!$response->successful()) {
                Log::warning('TGICS survey counts request failed', [
                    'status' => $response->status(),
                    'body' => $response->body(),
                ]);
                return ['counts' => array_fill_keys($ids, 0), 'total' => 0];
            }

            $json = $response->json();
            $countsRaw = $json['data']['counts'] ?? [];
            $counts = [];
            $total = 0;
            foreach ($ids as $id) {
                $n = (int) ($countsRaw[$id] ?? 0);
                $counts[$id] = $n;
                $total += $n;
            }

            return ['counts' => $counts, 'total' => $total];
        } catch (\Throwable $e) {
            Log::error('TGICS survey counts error: '.$e->getMessage());
            return ['counts' => array_fill_keys($ids, 0), 'total' => 0];
        }
    }
}