<?php

namespace app\api\logic\tcm;

use app\adminapi\logic\tcm\DiagnosisLogic;
use app\common\model\DiagnosisViewRecord;
use app\common\model\tcm\Diagnosis;
use app\common\model\user\User;

/**
 * 日常血糖：手机号快捷建档（无完整就诊卡时）
 */
class DailyPhoneLogic
{
    /** 小程序完整建档（edit_card） */
    public const CREATE_SOURCE_MNP = 'mnp';

    /** 小程序手机号快捷建档（日常血糖） */
    public const CREATE_SOURCE_MNP_DAILY = 'mnp_daily';

    /**
     * 用户 sex(1男2女) → 诊单 gender(1男0女)
     */
    public static function mapUserSexToDiagnosisGender($sex): int
    {
        $sex = (int) $sex;
        if ($sex === 2) {
            return 0;
        }
        if ($sex === 1) {
            return 1;
        }
        return 1;
    }

    /**
     * 已绑定手机号则返回可用诊单；无卡时自动创建轻量档案
     *
     * @param array{sex?:int|null} $options sex: 用户表 1男2女，授权手机号时可传入
     * @return array{ok:bool,need_mobile?:bool,error?:string,created?:bool,diagnosis_id?:int,patient_id?:int,patient_name?:string,gender?:int,age?:int,mobile?:string,create_source?:string}
     */
    public static function ensureDailyContext(int $userId, array $options = []): array
    {
        if ($userId <= 0) {
            return ['ok' => false, 'need_mobile' => false, 'error' => '请先登录'];
        }

        $user = User::where('id', $userId)
            ->field('id,nickname,real_name,mobile,sex,age')
            ->find();
        if (!$user) {
            return ['ok' => false, 'need_mobile' => false, 'error' => '用户不存在'];
        }

        $mobile = trim((string) ($user['mobile'] ?? ''));
        if ($mobile === '') {
            return ['ok' => false, 'need_mobile' => true, 'error' => '请先授权手机号'];
        }

        if (array_key_exists('sex', $options) && $options['sex'] !== null && $options['sex'] !== '') {
            $sex = (int) $options['sex'];
            if (in_array($sex, [1, 2], true) && (int) ($user['sex'] ?? 0) !== $sex) {
                User::update(['id' => $userId, 'sex' => $sex]);
                $user['sex'] = $sex;
            }
        }

        $cardList = DiagnosisLogic::getCardList($userId);
        if ($cardList === false) {
            return [
                'ok' => false,
                'need_mobile' => false,
                'error' => DiagnosisLogic::getError() ?: '获取就诊卡失败',
            ];
        }

        if (!empty($cardList)) {
            $card = $cardList[0];
            return self::buildContextOk($card, $mobile, false, false);
        }

        // 该手机号已在诊单库建档：关联查看记录，禁止重复创建轻量档案
        $existing = Diagnosis::where('phone', $mobile)
            ->where('delete_time', null)
            ->order('id', 'desc')
            ->find();
        if ($existing && (int) ($existing['show_card'] ?? 1) !== 1) {
            return [
                'ok' => false,
                'need_mobile' => false,
                'error' => '该手机号对应就诊卡因隐私设置已隐藏，请联系医生',
            ];
        }
        if ($existing) {
            if (!self::ensureUserViewRecord($userId, (int) $existing['id'], (int) $existing['patient_id'])) {
                return [
                    'ok' => false,
                    'need_mobile' => false,
                    'error' => '该手机号已建档，暂无法关联到当前账号',
                ];
            }
            return self::buildContextOk([
                'id' => (int) $existing['id'],
                'patient_id' => (int) $existing['patient_id'],
                'patient_name' => (string) ($existing['patient_name'] ?? ''),
                'gender' => (int) ($existing['gender'] ?? 0),
                'age' => (int) ($existing['age'] ?? 0),
                'create_source' => (string) ($existing['create_source'] ?? ''),
            ], $mobile, false, true);
        }

        $displayName = trim((string) (($user['real_name'] ?? '') ?: ($user['nickname'] ?? '')));
        if ($displayName === '') {
            $displayName = '用户' . substr($mobile, -4);
        }

        $gender = self::mapUserSexToDiagnosisGender($user['sex'] ?? 1);

        $result = DiagnosisLogic::addCard([
            'user_id' => $userId,
            'patient_name' => $displayName,
            'phone' => $mobile,
            'gender' => $gender,
            'age' => max(0, (int) ($user['age'] ?? 0)),
            'diagnosis_date' => time(),
            'create_source' => self::CREATE_SOURCE_MNP_DAILY,
            'remark' => '小程序手机号快捷建档（日常血糖）',
        ]);

        if ($result === false) {
            return [
                'ok' => false,
                'need_mobile' => false,
                'error' => DiagnosisLogic::getError() ?: '创建档案失败',
            ];
        }

        return self::buildContextOk([
            'id' => (int) $result['id'],
            'patient_id' => (int) $result['patient_id'],
            'patient_name' => $displayName,
            'gender' => $gender,
            'age' => max(0, (int) ($user['age'] ?? 0)),
            'create_source' => self::CREATE_SOURCE_MNP_DAILY,
        ], $mobile, true, false);
    }

    /**
     * @param array{id:int,patient_id:int,patient_name?:string,gender?:int,age?:int,create_source?:string} $card
     */
    private static function buildContextOk(array $card, string $mobile, bool $created, bool $linkedExisting): array
    {
        return [
            'ok' => true,
            'need_mobile' => false,
            'created' => $created,
            'linked_existing' => $linkedExisting,
            'diagnosis_id' => (int) $card['id'],
            'patient_id' => (int) $card['patient_id'],
            'patient_name' => (string) ($card['patient_name'] ?? ''),
            'gender' => (int) ($card['gender'] ?? 0),
            'age' => (int) ($card['age'] ?? 0),
            'mobile' => $mobile,
            'create_source' => (string) ($card['create_source'] ?? ''),
        ];
    }

    /** 将已有诊单挂到当前小程序用户（diagnosis_view_records） */
    private static function ensureUserViewRecord(int $userId, int $diagnosisId, int $patientId): bool
    {
        if ($userId <= 0 || $diagnosisId <= 0) {
            return false;
        }
        try {
            $exists = DiagnosisViewRecord::where('user_id', $userId)
                ->where('diagnosis_id', $diagnosisId)
                ->where('delete_time', null)
                ->find();
            if ($exists) {
                return true;
            }
            $now = time();
            DiagnosisViewRecord::create([
                'user_id' => $userId,
                'diagnosis_id' => $diagnosisId,
                'patient_id' => $patientId,
                'share_user_id' => 0,
                'view_count' => 1,
                'first_view_time' => $now,
                'last_view_time' => $now,
                'is_confirmed' => 0,
                'create_time' => $now,
                'update_time' => $now,
            ]);
            return true;
        } catch (\Throwable $e) {
            return false;
        }
    }
}