<?php

namespace App\Services;

use Illuminate\Support\Facades\DB;
use App\Services\JwtService;

class PatientAuthService
{
    private JwtService $jwtService;

    public function __construct(JwtService $jwtService)
    {
        $this->jwtService = $jwtService;
    }

    /**
     * 患者登录（身份证号+姓名）
     * 从 exam_application 表中查找匹配的患者记录
     */
    public function login(string $idCardNo, string $name): array
    {
        $application = DB::table('exam_application')
            ->where('patient_id_card_no', $idCardNo)
            ->where('patient_name', $name)
            ->first();

        if (!$application) {
            return ['success' => false, 'message' => '未找到匹配的患者信息，请核实身份证号和姓名'];
        }

        $patientIds = DB::table('exam_application')
            ->where('patient_id_card_no', $idCardNo)
            ->pluck('patient_id')
            ->unique()
            ->values()
            ->toArray();

        $payload = [
            'type' => 'patient',
            'patient_id_card_no' => $idCardNo,
            'patient_name' => $name,
            'patient_ids' => $patientIds,
        ];

        $token = $this->jwtService->generateToken($payload);

        return [
            'success' => true,
            'message' => '登录成功',
            'data' => [
                'access_token' => $token,
                'token_type' => 'Bearer',
                'patient_name' => $name,
                'patient_id_card_no' => $idCardNo,
            ]
        ];
    }

    public function getPatientIdCardNo(array $payload): ?string
    {
        return $payload['patient_id_card_no'] ?? null;
    }

    public function getPatientName(array $payload): ?string
    {
        return $payload['patient_name'] ?? null;
    }

    public function getPatientIds(array $payload): array
    {
        return $payload['patient_ids'] ?? [];
    }

    public function isPatient(array $payload): bool
    {
        return ($payload['type'] ?? '') === 'patient';
    }
}