<?php

namespace App\Services;

class GoogleAdsSpendService
{
    public function __construct(
        private readonly GoogleAdsService $adsService,
    ) {}

    public function forDateRange(string $customerId, string $startDate, string $endDate): float
    {
        $spending = 0.0;

        foreach ($this->adsService->listCampaigns($customerId) as $campaign) {
            $metrics = $this->adsService->listCampaignsMetricsById(
                $customerId,
                (string) $campaign['id'],
                $startDate,
                $endDate,
            );

            $spending += array_sum(array_map(
                fn (array $metric): float => (float) ($metric['actual_spend'] ?? 0),
                $metrics,
            ));
        }

        return round($spending, 6);
    }
}