<?php

namespace App\Services\Fcm;

class FcmBatchResult
{
    /** @var array<string, FcmResponse> */
    private array $responses = [];

    private int $successCount = 0;

    private int $failureCount = 0;

    /** @var array<string> 무효 토큰 목록 */
    private array $invalidTokens = [];

    /**
     * 응답 추가
     */
    public function addResponse(string $token, FcmResponse $response): void
    {
        $this->responses[$token] = $response;

        if ($response->success) {
            $this->successCount++;
        } else {
            $this->failureCount++;

            if ($response->isInvalidToken()) {
                $this->invalidTokens[] = $token;
            }
        }
    }

    /**
     * 전체 발송 수
     */
    public function getTotal(): int
    {
        return count($this->responses);
    }

    /**
     * 성공 수
     */
    public function getSuccessCount(): int
    {
        return $this->successCount;
    }

    /**
     * 실패 수
     */
    public function getFailureCount(): int
    {
        return $this->failureCount;
    }

    /**
     * 무효 토큰 목록 (비활성화 필요)
     *
     * @return array<string>
     */
    public function getInvalidTokens(): array
    {
        return $this->invalidTokens;
    }

    /**
     * 모든 응답
     *
     * @return array<string, FcmResponse>
     */
    public function getResponses(): array
    {
        return $this->responses;
    }

    /**
     * 특정 토큰의 응답
     */
    public function getResponse(string $token): ?FcmResponse
    {
        return $this->responses[$token] ?? null;
    }

    /**
     * 성공률 (%)
     */
    public function getSuccessRate(): float
    {
        if ($this->getTotal() === 0) {
            return 0.0;
        }

        return round(($this->successCount / $this->getTotal()) * 100, 2);
    }

    /**
     * 요약 정보
     */
    public function toSummary(): array
    {
        return [
            'total' => $this->getTotal(),
            'success' => $this->successCount,
            'failure' => $this->failureCount,
            'invalid_tokens' => count($this->invalidTokens),
            'success_rate' => $this->getSuccessRate(),
        ];
    }
}