<?php

namespace App\Services\Recipients;

final readonly class RecipientResolutionResult
{
    /**
     * @param  array<int, array<string, mixed>>  $recipients
     * @param  array<int, array<string, mixed>>  $excluded
     */
    public function __construct(
        public array $recipients,
        public array $excluded,
        public int $selectedContactCount,
        public int $selectedGroupCount,
    ) {}

    /**
     * @return array<string, int>
     */
    public function summary(): array
    {
        return [
            'selected_contacts' => $this->selectedContactCount,
            'selected_groups' => $this->selectedGroupCount,
            'ready_numbers' => count($this->recipients),
            'excluded_total' => count($this->excluded),
            'opt_out' => $this->countExcludedReason('opt_out'),
            'missing_phone' => $this->countExcludedReason('missing_phone'),
            'invalid' => $this->countExcludedReason('invalid'),
            'non_mobile' => $this->countExcludedReason('non_mobile'),
            'duplicate' => $this->countExcludedReason('duplicate'),
        ];
    }

    /**
     * @return array<int, array<string, mixed>>
     */
    public function excludedByReason(string $reason): array
    {
        return array_values(array_filter(
            $this->excluded,
            fn (array $entry): bool => ($entry['reason'] ?? null) === $reason,
        ));
    }

    private function countExcludedReason(string $reason): int
    {
        return count($this->excludedByReason($reason));
    }
}