<?php

declare(strict_types=1);

namespace app\adminapi\logic\tcm;

use app\common\model\auth\Admin;
use app\common\model\doctor\Appointment;
use app\common\model\tcm\Prescription;
use app\common\model\tcm\PrescriptionOrder;
use app\common\model\tcm\Diagnosis;
use app\common\service\wechat\WechatWorkAppMessageService;
use think\facade\Config;
use think\facade\Log;

class PrescriptionLogic
{
    private static $error = '';

    /** @var array{ok: bool, message?: string, errcode?: int}|null 最近一次审核成功后的企微通知结果 */
    private static ?array $lastAuditWecomNotify = null;

    public static function setError(string $msg): void
    {
        self::$error = $msg;
    }

    public static function getError(): string
    {
        return self::$error;
    }

    /**
     * 可见角色 ID 存库为逗号分隔字符串
     *
     * @param array|string $raw
     */
    public static function normalizeVisibleRoleIds($raw): string
    {
        if (is_string($raw)) {
            $parts = array_filter(array_map('intval', explode(',', $raw)));
        } elseif (is_array($raw)) {
            $parts = array_filter(array_map('intval', $raw));
        } else {
            $parts = [];
        }

        return implode(',', array_values(array_unique($parts)));
    }

    /**
     * 当前管理员是否可审核处方（通过/驳回）
     */
    public static function canAuditPrescription(int $adminId, array $adminInfo): bool
    {
        if (!empty($adminInfo['root']) && (int) $adminInfo['root'] === 1) {
            return true;
        }

        $allow = Config::get('project.prescription_audit_roles', []);
        if ($allow === [] || $allow === null) {
            $allow = Config::get('project.prescription_library_manage_all_roles', [0, 3]);
        }

        $myRoles = array_map('intval', $adminInfo['role_id'] ?? []);
        $allow = array_map('intval', $allow);

        return count(array_intersect($myRoles, $allow)) > 0;
    }

    /**
     * 是否可查看该处方（列表/详情）
     *
     * @param Prescription|array<string,mixed> $row
     */
    public static function canViewPrescription($row, int $adminId, array $adminInfo): bool
    {
        // 超级管理员
        if (!empty($adminInfo['root']) && (int) $adminInfo['root'] === 1) {
            return true;
        }

        // 创建人
        $creatorId = is_array($row) ? (int) ($row['creator_id'] ?? 0) : (int) $row->creator_id;
        if ($creatorId === $adminId) {
            return true;
        }

        // 医助
        $assistantId = is_array($row) ? (int) ($row['assistant_id'] ?? 0) : (int) ($row->assistant_id ?? 0);
        if ($assistantId > 0 && $assistantId === $adminId) {
            return true;
        }

        // 共享处方
        $isShared = is_array($row) ? (int) ($row['is_shared'] ?? 0) : (int) $row->is_shared;
        if ($isShared === 1) {
            return true;
        }

        // 可见角色
        $vis = is_array($row) ? (string) ($row['visible_role_ids'] ?? '') : (string) ($row->visible_role_ids ?? '');
        $allowed = array_filter(array_map('intval', explode(',', $vis)));
        $myRoles = array_map('intval', $adminInfo['role_id'] ?? []);
        if (count(array_intersect($myRoles, $allowed)) > 0) {
            return true;
        }

        // 有开方权限的医生可以查看所有处方（只读）
        // 这样其他医生可以查看患者的历史处方记录
        $permissions = $adminInfo['permissions'] ?? [];
        if (in_array('tcm.diagnosis/kaifang', $permissions, true)) {
            return true;
        }

        // 有业务订单管理权限的角色（如药师）可以查看处方（只读）
        // 这样药师可以在业务订单中查看关联的处方信息
        $orderEditAllRoles = Config::get('project.order_edit_all_roles', [0, 3]);
        $myRoles = array_map('intval', $adminInfo['role_id'] ?? []);
        $allowedRoles = array_map('intval', is_array($orderEditAllRoles) ? $orderEditAllRoles : []);
        if (count(array_intersect($myRoles, $allowedRoles)) > 0) {
            return true;
        }

        return false;
    }

    private static function generateSn(): string
    {
        return 'RX' . date('Ymd') . str_pad((string)mt_rand(1, 9999), 4, '0', STR_PAD_LEFT);
    }

    /**
     * 处方日期统一为 Y-m-d（与库表 prescription_date 一致）
     *
     * @param mixed $raw
     */
    private static function normalizePrescriptionDate($raw): string
    {
        if ($raw === null || $raw === '') {
            return date('Y-m-d');
        }
        if (is_numeric($raw) && (float) $raw > 1e9) {
            return date('Y-m-d', (int) $raw);
        }
        $s = (string) $raw;
        if (preg_match('/^\d{4}-\d{2}-\d{2}/', $s)) {
            return substr($s, 0, 10);
        }
        $ts = strtotime($s);

        return $ts ? date('Y-m-d', $ts) : date('Y-m-d');
    }

    private static function normalizeDosageBagCount($raw): int
    {
        $count = (int) $raw;
        if ($count < 1) {
            return 1;
        }
        if ($count > 5) {
            return 5;
        }

        return $count;
    }

    /**
     * 同一诊单、同一开方人、同一处方日期：仅允许一张「未作废」的未删除记录；已作废的可再新开一张。
     *
     * @param int|null $excludeId 编辑时排除自身 id
     */
    private static function assertUniquePrescriptionPerDiagnosisDay(int $diagnosisId, int $creatorId, string $prescriptionDateYmd, ?int $excludeId): bool
    {
        if ($diagnosisId <= 0 || $creatorId <= 0) {
            return true;
        }

        $q = Prescription::where('diagnosis_id', $diagnosisId)
            ->where('creator_id', $creatorId)
            ->where('prescription_date', $prescriptionDateYmd)
            ->where('void_status', 0)
            ->whereNull('delete_time');
        if ($excludeId !== null && $excludeId > 0) {
            $q->where('id', '<>', $excludeId);
        }
        if ($q->count() > 0) {
            self::setError('同一诊单同一天已存在未作废处方，请先作废后再新开');

            return false;
        }

        return true;
    }

    /**
     * 添加处方
     */
    public static function add(array $params, int $adminId): ?int
    {
        // 如果没有诊单ID，允许直接创建处方模板
        if (!empty($params['diagnosis_id'])) {
            $diagnosis = Diagnosis::find($params['diagnosis_id']);
            if (!$diagnosis) {
                self::setError('诊单不存在');
                return null;
            }
        }

        $dateYmd = self::normalizePrescriptionDate($params['prescription_date'] ?? date('Y-m-d'));
        $diagnosisIdRule = (int) ($params['diagnosis_id'] ?? 0);
        if ($diagnosisIdRule > 0 && !self::assertUniquePrescriptionPerDiagnosisDay($diagnosisIdRule, $adminId, $dateYmd, null)) {
            return null;
        }

        $herbs = $params['herbs'] ?? [];
        if (empty($herbs) || !is_array($herbs)) {
            self::setError('请添加中药');
            return null;
        }

        foreach ($herbs as $h) {
            if (empty($h['name'])) {
                self::setError('中药名称不能为空');
                return null;
            }
        }

        $sn = self::generateSn();
        while (Prescription::where('sn', $sn)->find()) {
            $sn = self::generateSn();
        }

        $assistantIdForRx = 0;
        if ($diagnosisIdRule > 0) {
            $diagAssistant = Diagnosis::where('id', $diagnosisIdRule)->value('assistant_id');
            $assistantIdForRx = (int) ($diagAssistant ?? 0);
        }

        $data = [
            'sn' => $sn,
            'prescription_name' => $params['prescription_name'] ?? '',
            'prescription_type' => $params['prescription_type'] ?? '浓缩水丸',
            'dosage_amount' => isset($params['dosage_amount']) ? (float)$params['dosage_amount'] : null,
            'dosage_unit' => $params['dosage_unit'] ?? '',
            'dosage_bag_count' => self::normalizeDosageBagCount($params['dosage_bag_count'] ?? 1),
            'need_decoction' => (int)($params['need_decoction'] ?? 0),
            'bags_per_dose' => isset($params['bags_per_dose']) ? (int)$params['bags_per_dose'] : 1,
            'diagnosis_id' => (int)($params['diagnosis_id'] ?? 0),
            'appointment_id' => (int)($params['appointment_id'] ?? 0),
            'patient_id' => (int)($params['patient_id'] ?? 0),
            'patient_name' => $params['patient_name'] ?? '',
            'gender' => (int)($params['gender'] ?? 1),
            'age' => (int)($params['age'] ?? 0),
            'phone' => $params['phone'] ?? '',
            'visit_no' => $params['visit_no'] ?? $sn,
            'prescription_date' => $dateYmd,
            'pulse' => $params['pulse'] ?? '',
            'pulse_condition' => $params['pulse_condition'] ?? '',
            'tongue' => $params['tongue'] ?? '',
            'tongue_image' => $params['tongue_image'] ?? '',
            'clinical_diagnosis' => $params['clinical_diagnosis'] ?? '',
            'case_record' => $params['case_record'] ?? null,
            'herbs' => $herbs,
            'dose_count' => (int)($params['dose_count'] ?? 1),
            'dose_unit' => $params['dose_unit'] ?? '剂',
            'usage_days' => (int)($params['usage_days'] ?? 7),
            'times_per_day' => (int)($params['times_per_day'] ?? 2),
            'usage_instruction' => $params['usage_instruction'] ?? '水煎服一日二次',
            'usage_time' => $params['usage_time'] ?? '饭前',
            'usage_way' => $params['usage_way'] ?? '温水送服',
            'dietary_taboo' => is_array($params['dietary_taboo'] ?? null) ? implode(',', $params['dietary_taboo']) : ($params['dietary_taboo'] ?? ''),
            'usage_notes' => $params['usage_notes'] ?? '',
            'amount' => (float)($params['amount'] ?? 0),
            'doctor_name' => $params['doctor_name'] ?? '',
            'doctor_signature' => $params['doctor_signature'] ?? '',
            'template_id' => (int)($params['template_id'] ?? 0),
            'is_shared' => (int)($params['is_shared'] ?? 0),
            'visible_role_ids' => self::normalizeVisibleRoleIds($params['visible_role_ids'] ?? []),
            // 新开方一律待审核（忽略客户端传入的 audit_status，防止绕过审核）
            'audit_status' => 0,
            'audit_time' => null,
            'audit_by' => null,
            'audit_by_name' => '',
            'audit_remark' => '',
            'creator_id' => $adminId,
            'assistant_id' => $assistantIdForRx,
        ];

        $prescription = new Prescription();
        $prescription->save($data);

        return (int) $prescription->id;
    }

    /**
     * 编辑处方
     */
    public static function edit(array $params, int $adminId): bool
    {
        try {
            $prescription = Prescription::find($params['id']);
            if (!$prescription) {
                self::setError('处方不存在');
                return false;
            }

            // 已通过且未作废：不可编辑
            if ((int) ($prescription->audit_status ?? 1) === 1 && (int) ($prescription->void_status ?? 0) === 0) {
                self::setError('该处方已通过审核，不可编辑');
                return false;
            }

            // 已驳回：仅当该诊单+当天+同一创建人下没有另一条「已通过且未作废」的处方时允许重新编辑（改后待审核、作废一并清除）
            if ((int) ($prescription->audit_status ?? 1) === 2) {
                $rejDiagnosisId = (int) ($params['diagnosis_id'] ?? $prescription->diagnosis_id);
                $rejDateYmd = self::normalizePrescriptionDate($params['prescription_date'] ?? $prescription->prescription_date);
                if ($rejDiagnosisId > 0) {
                    $hasOtherApproved = Prescription::where('diagnosis_id', $rejDiagnosisId)
                        ->where('creator_id', (int) $prescription->creator_id)
                        ->where('prescription_date', $rejDateYmd)
                        ->where('audit_status', 1)
                        ->where('void_status', 0)
                        ->whereNull('delete_time')
                        ->where('id', '<>', (int) $params['id'])
                        ->count() > 0;
                    if ($hasOtherApproved) {
                        self::setError('该诊单当天已有审核通过的处方，不可再编辑本条已驳回记录');
                        return false;
                    }
                }
            }

            // 检查权限：只有创建者或共享的处方才能编辑
            if ($prescription->creator_id != $adminId && $prescription->is_shared != 1) {
                self::setError('无权限编辑此处方');
                return false;
            }

            $herbs = $params['herbs'] ?? [];
            if (empty($herbs) || !is_array($herbs)) {
                self::setError('请添加中药');
                return false;
            }

            foreach ($herbs as $h) {
                if (empty($h['name'])) {
                    self::setError('中药名称不能为空');
                    return false;
                }
            }

            $newDiagnosisId = (int) ($params['diagnosis_id'] ?? $prescription->diagnosis_id);
            $newDateYmd = self::normalizePrescriptionDate($params['prescription_date'] ?? $prescription->prescription_date);
            if ($newDiagnosisId > 0 && !self::assertUniquePrescriptionPerDiagnosisDay($newDiagnosisId, (int) $prescription->creator_id, $newDateYmd, (int) $params['id'])) {
                return false;
            }

            $wasVoid = (int) ($prescription->void_status ?? 0) === 1;

            $assistantIdForRx = (int) ($prescription->assistant_id ?? 0);
            if ($newDiagnosisId > 0) {
                $diagAssistant = Diagnosis::where('id', $newDiagnosisId)->value('assistant_id');
                $assistantIdForRx = (int) ($diagAssistant ?? 0);
            } else {
                $assistantIdForRx = 0;
            }

            $data = [
                'diagnosis_id' => $newDiagnosisId,
                'assistant_id' => $assistantIdForRx,
                'prescription_name' => $params['prescription_name'] ?? $prescription->prescription_name,
                'prescription_type' => $params['prescription_type'] ?? $prescription->prescription_type,
                'dosage_amount' => isset($params['dosage_amount']) ? (float)$params['dosage_amount'] : $prescription->dosage_amount,
                'dosage_unit' => $params['dosage_unit'] ?? $prescription->dosage_unit,
                'dosage_bag_count' => self::normalizeDosageBagCount($params['dosage_bag_count'] ?? ($prescription->dosage_bag_count ?? 1)),
                'need_decoction' => isset($params['need_decoction']) ? (int)$params['need_decoction'] : (int)($prescription->need_decoction ?? 0),
                'bags_per_dose' => isset($params['bags_per_dose']) ? (int)$params['bags_per_dose'] : (int)($prescription->bags_per_dose ?? 1),
                'patient_name' => $params['patient_name'] ?? $prescription->patient_name,
                'gender' => (int)($params['gender'] ?? $prescription->gender),
                'age' => (int)($params['age'] ?? $prescription->age),
                'visit_no' => $params['visit_no'] ?? $prescription->visit_no,
                'prescription_date' => $newDateYmd,
                'tongue' => $params['tongue'] ?? $prescription->tongue,
                'tongue_image' => $params['tongue_image'] ?? $prescription->tongue_image,
                'pulse' => $params['pulse'] ?? $prescription->pulse,
                'pulse_condition' => $params['pulse_condition'] ?? $prescription->pulse_condition,
                'clinical_diagnosis' => $params['clinical_diagnosis'] ?? $prescription->clinical_diagnosis,
                'herbs' => $herbs,
                'dose_count' => (int)($params['dose_count'] ?? $prescription->dose_count),
                'dose_unit' => $params['dose_unit'] ?? $prescription->dose_unit,
                'usage_days' => (int)($params['usage_days'] ?? $prescription->usage_days),
                'times_per_day' => (int)($params['times_per_day'] ?? $prescription->times_per_day ?? 2),
                'usage_instruction' => $params['usage_instruction'] ?? $prescription->usage_instruction,
                'usage_time' => $params['usage_time'] ?? $prescription->usage_time,
                'usage_way' => $params['usage_way'] ?? $prescription->usage_way,
                'dietary_taboo' => is_array($params['dietary_taboo'] ?? null) ? implode(',', $params['dietary_taboo']) : ($params['dietary_taboo'] ?? $prescription->dietary_taboo),
                'usage_notes' => $params['usage_notes'] ?? $prescription->usage_notes,
                'doctor_name' => $params['doctor_name'] ?? $prescription->doctor_name,
                'doctor_signature' => $params['doctor_signature'] ?? $prescription->doctor_signature,
                'is_shared' => (int)($params['is_shared'] ?? $prescription->is_shared),
                'visible_role_ids' => array_key_exists('visible_role_ids', $params)
                    ? self::normalizeVisibleRoleIds($params['visible_role_ids'])
                    : (string) ($prescription->visible_role_ids ?? ''),
                // 后台编辑保存后视为手工处方（原系统代开标记清除）
                'is_system_auto' => 0,
                // 开方医生修改后重新进入待审核
                'audit_status' => 0,
                'audit_time' => null,
                'audit_by' => null,
                'audit_by_name' => '',
                'audit_remark' => '',
            ];

            if ($wasVoid) {
                $data['void_status'] = 0;
                $data['void_time'] = null;
                $data['void_by'] = null;
                $data['void_by_name'] = '';
            }

            $prescription->save($data);
            PrescriptionOrderLogic::onConsumerPrescriptionSaved((int) $params['id']);

            return true;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return false;
        }
    }

    /**
     * 删除处方
     */
    public static function delete(int $id): bool
    {
        try {
            $prescription = Prescription::find($id);
            if (!$prescription) {
                self::setError('处方不存在');
                return false;
            }

            if ((int) ($prescription->audit_status ?? 1) === 1 && (int) ($prescription->void_status ?? 0) === 0) {
                self::setError('该处方已通过审核，不可删除');
                return false;
            }

            $prescription->delete();
            return true;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return false;
        }
    }

    /**
     * 处方详情（带查看权限校验，供后台管理端）
     */
    public static function detail(int $id, int $viewerAdminId, array $viewerAdminInfo): ?array
    {
        self::$error = '';
        $row = Prescription::find($id);
        if (!$row) {
            return null;
        }
        if (!self::canViewPrescription($row, $viewerAdminId, $viewerAdminInfo)) {
            self::setError('无权限查看此处方');

            return null;
        }
        $arr = $row->toArray();
        $arr['gender_desc'] = $arr['gender'] == 1 ? '男' : '女';
        $arr['visible_role_ids'] = self::visibleRoleIdsToArray($arr['visible_role_ids'] ?? '');

        $bizPo = PrescriptionOrder::where('prescription_id', $id)
            ->where('prescription_audit_status', 2)
            ->whereNull('delete_time')
            ->where('fulfillment_status', '<>', 4)
            ->order('id', 'desc')
            ->find();
        $arr['business_prescription_audit_rejected'] = $bizPo ? 1 : 0;
        $arr['business_prescription_audit_remark'] = $bizPo ? (string) ($bizPo->prescription_audit_remark ?? '') : '';

        // 与 PrescriptionLists「业务订单」角标一致：未删除且非已取消(4) 即视为存在有效业务订单
        $hasBizOrder = PrescriptionOrder::where('prescription_id', $id)
            ->whereNull('delete_time')
            ->where('fulfillment_status', '<>', 4)
            ->count() > 0;
        $arr['has_prescription_order'] = $hasBizOrder ? 1 : 0;

        /**
         * 处方笺展示所需的"收件信息/订单号/合计"等字段，
         * 来源是该处方关联的「业务处方订单」(zyt_tcm_prescription_order)。
         * 取最近一条未删除且未取消的订单：
         *   - recipient_name / recipient_phone / shipping_address 用于「收件信息」一行
         *   - order_no 用于处方笺右上角「编号」
         *   - amount 作为「合计」金额回填（前端再做 0 兜底展示）
         */
        $latestPo = PrescriptionOrder::where('prescription_id', $id)
            ->whereNull('delete_time')
            ->where('fulfillment_status', '<>', 4)
            ->order('id', 'desc')
            ->find();
        if ($latestPo) {
            $arr['recipient_name']    = (string) ($latestPo->recipient_name ?? '');
            $arr['recipient_phone']   = (string) ($latestPo->recipient_phone ?? '');
            $arr['shipping_address']  = (string) ($latestPo->shipping_address ?? '');
            $arr['order_no']          = (string) ($latestPo->order_no ?? '');
            $arr['order_amount']      = round((float) ($latestPo->amount ?? 0), 2);
        }

        return $arr;
    }

    /**
     * 业务订单「处方审核」通过时：消费者处方仍为待审核则一并记为已通过，
     * 避免消费者处方列表筛选「未通过」仍包含该条、与业务侧已通过不一致。
     */
    public static function syncApproveConsumerPrescriptionIfPending(
        int $prescriptionId,
        int $adminId,
        array $adminInfo,
        string $remark
    ): void {
        if ($prescriptionId <= 0) {
            return;
        }
        $row = Prescription::find($prescriptionId);
        if (!$row) {
            return;
        }
        if ((int) ($row->void_status ?? 0) === 1) {
            return;
        }
        if ((int) ($row->audit_status ?? 1) !== 0) {
            return;
        }

        self::$lastAuditWecomNotify = null;
        $name = (string) ($adminInfo['name'] ?? '');
        $now = time();
        $finalRemark = trim($remark) !== '' ? trim($remark) : '业务订单处方审核通过';
        $finalRemark = mb_substr($finalRemark, 0, 500);

        $row->audit_status = 1;
        $row->audit_time = $now;
        $row->audit_by = $adminId;
        $row->audit_by_name = $name;
        $row->audit_remark = $finalRemark;

        try {
            if ($row->save()) {
                self::$lastAuditWecomNotify = self::notifyCreatorAuditResult($row, 'approve', $finalRemark, $adminInfo);
            }
        } catch (\Throwable $e) {
            Log::error('syncApproveConsumerPrescriptionIfPending: ' . $e->getMessage());
        }
    }

    /**
     * @return int[]
     */
    public static function visibleRoleIdsToArray(string $csv): array
    {
        if ($csv === '') {
            return [];
        }

        return array_values(array_unique(array_filter(array_map('intval', explode(',', $csv)))));
    }

    /**
     * 审核：通过 / 驳回（驳回同时作废处方）
     */
    public static function audit(int $id, string $action, string $remark, int $adminId, array $adminInfo): bool
    {
        self::$error = '';
        self::$lastAuditWecomNotify = null;
        if (!self::canAuditPrescription($adminId, $adminInfo)) {
            self::setError('无审核权限');

            return false;
        }

        $row = Prescription::find($id);
        if (!$row) {
            self::setError('处方不存在');

            return false;
        }

        if (!self::canViewPrescription($row, $adminId, $adminInfo)) {
            self::setError('无权限查看此处方，无法审核');

            return false;
        }

        if ((int) ($row->audit_status ?? 1) !== 0) {
            self::setError('当前状态不可审核');

            return false;
        }

        $name = (string) ($adminInfo['name'] ?? '');
        $now = time();

        if ($action === 'approve') {
            $row->audit_status = 1;
            $row->audit_time = $now;
            $row->audit_by = $adminId;
            $row->audit_by_name = $name;
            $row->audit_remark = $remark;

            $ok = (bool) $row->save();
            if ($ok) {
                self::$lastAuditWecomNotify = self::notifyCreatorAuditResult($row, 'approve', $remark, $adminInfo);
            }

            return $ok;
        }

        if ($action === 'reject') {
            if (trim($remark) === '') {
                self::setError('驳回时请填写审核意见');

                return false;
            }
            $row->audit_status = 2;
            $row->audit_time = $now;
            $row->audit_by = $adminId;
            $row->audit_by_name = $name;
            $row->audit_remark = $remark;
            $row->void_status = 1;
            $row->void_time = $now;
            $row->void_by = $adminId;
            $row->void_by_name = $name;

            $ok = (bool) $row->save();
            if ($ok) {
                self::$lastAuditWecomNotify = self::notifyCreatorAuditResult($row, 'reject', $remark, $adminInfo);
            }

            return $ok;
        }

        self::setError('无效的审核操作');

        return false;
    }

    /**
     * 审核通过/驳回后，给企业微信中的开方人发一条应用消息（需绑定 work_wechat_userid）
     *
     * @return array{ok: bool, message?: string, errcode?: int}
     */
    private static function notifyCreatorAuditResult(Prescription $rx, string $action, string $remark, array $auditorInfo): array
    {
        try {
            $creatorId = (int) ($rx->creator_id ?? 0);
            if ($creatorId <= 0) {
                return ['ok' => false, 'message' => '无法通知：处方无开方人信息'];
            }
            $creator = Admin::whereNull('delete_time')->find($creatorId);
            if (!$creator) {
                return ['ok' => false, 'message' => '无法通知：开方人账号不存在'];
            }
            $wxId = trim((string) ($creator->work_wechat_userid ?? ''));
            if ($wxId === '') {
                Log::warning("处方审核企业微信通知跳过: 开方人 admin_id={$creatorId} 未绑定 work_wechat_userid");

                return [
                    'ok' => false,
                    'message' => '开方人未绑定企业微信账号，无法推送消息（请其在后台「扫码绑定企业微信」后再试）',
                ];
            }
            $sn = (string) ($rx->sn ?? '');
            $patient = (string) ($rx->patient_name ?? '');
            $auditorName = (string) ($auditorInfo['name'] ?? '');
            if ($action === 'approve') {
                $text = "【处方审核】您开具的处方已通过审核。\n编号：{$sn}\n患者：{$patient}\n审核人：{$auditorName}";
                if (trim($remark) !== '') {
                    $text .= "\n备注：" . trim($remark);
                }
            } else {
                $text = "【处方审核】您开具的处方已被驳回并已作废。\n编号：{$sn}\n患者：{$patient}\n审核人：{$auditorName}\n意见：" . trim($remark);
            }
            $result = WechatWorkAppMessageService::sendTextToUser($wxId, $text);
            if (empty($result['ok'])) {
                Log::warning('处方审核企业微信通知失败: ' . ($result['message'] ?? ''));
            }

            return $result;
        } catch (\Throwable $e) {
            Log::error('处方审核企业微信通知异常: ' . $e->getMessage());

            return ['ok' => false, 'message' => '企业微信通知异常：' . $e->getMessage()];
        }
    }

    /**
     * 取出并清空最近一次审核后的企微通知结果（供接口返回给前端提示）
     *
     * @return array{ok: bool, message?: string, errcode?: int}|null
     */
    public static function consumeLastAuditWecomNotify(): ?array
    {
        $v = self::$lastAuditWecomNotify;
        self::$lastAuditWecomNotify = null;

        return $v;
    }

    /**
     * 根据诊单ID获取处方列表
     */
    public static function listByDiagnosis(int $diagnosisId): array
    {
        return Prescription::where('diagnosis_id', $diagnosisId)
            ->whereNull('delete_time')
            ->order('id', 'desc')
            ->select()
            ->toArray();
    }

    /**
     * 根据预约ID获取处方（带权限检查）
     */
    public static function getByAppointment(int $appointmentId, int $viewerAdminId, array $viewerAdminInfo): ?array
    {
        self::$error = '';
        $row = Prescription::where('appointment_id', $appointmentId)
            ->where('creator_id',$viewerAdminId)
            ->whereNull('delete_time')
            ->order('id', 'desc')
            ->find();
       
        if (!$row) {
            return null;
        }
        
        // 权限检查：只返回当前用户有权限查看的处方
        if (!self::canViewPrescription($row, $viewerAdminId, $viewerAdminInfo)) {
            self::setError('无权限查看此处方');
            return null;
        }
        
        return $row->toArray();
    }

    /**
     * 挂号标记「完成」后自动生成处方：无药材配方，is_system_auto=1，其余字段与常规开方一致（患者/诊单来自预约关联诊单）。
     * 若该预约已有未作废处方、或同日同诊单同医师已存在未作废处方，则跳过（不抛错）。
     *
     * @return int|null 新建处方 id；跳过返回 null
     */
    public static function createSystemAutoFromCompletedAppointment(int $appointmentId): ?int
    {
        if ($appointmentId <= 0) {
            return null;
        }

        $appointment = Appointment::find($appointmentId);
        if (!$appointment) {
            return null;
        }

        $diagnosisId = (int) ($appointment->patient_id ?? 0);
        if ($diagnosisId <= 0) {
            Log::info('createSystemAutoFromCompletedAppointment: no diagnosis (patient_id), skip appt=' . $appointmentId);

            return null;
        }

        $doctorId = (int) ($appointment->doctor_id ?? 0);
        if ($doctorId <= 0) {
            return null;
        }

        $dupAppt = Prescription::where('appointment_id', $appointmentId)
            ->where('void_status', 0)
            ->whereNull('delete_time')
            ->find();
        if ($dupAppt) {
            return null;
        }

        $diagnosis = Diagnosis::find($diagnosisId);
        if (!$diagnosis) {
            self::setError('诊单不存在');

            return null;
        }

        $apptDateRaw = $appointment->appointment_date ?? '';
        $dateYmd = is_string($apptDateRaw) && preg_match('/^\d{4}-\d{2}-\d{2}/', trim($apptDateRaw))
            ? substr(trim($apptDateRaw), 0, 10)
            : self::normalizePrescriptionDate(date('Y-m-d'));

        if (!self::assertUniquePrescriptionPerDiagnosisDay($diagnosisId, $doctorId, $dateYmd, null)) {
            Log::info("createSystemAutoFromCompletedAppointment: unique rule skip diagnosis={$diagnosisId} doctor={$doctorId} date={$dateYmd}");

            return null;
        }

        $sn = self::generateSn();
        while (Prescription::where('sn', $sn)->find()) {
            $sn = self::generateSn();
        }

        $clinical = trim((string) ($diagnosis->symptoms ?? ''));
        if ($clinical === '') {
            $clinical = '就诊完成系统生成（暂无药材配方，请医师补充诊断与药材）';
        }

        $doctorName = (string) (Admin::where('id', $doctorId)->value('name') ?? '');
        $assistantIdForRx = (int) ($diagnosis->assistant_id ?? 0);

        $visitNo = '1K' . str_pad((string) $diagnosisId, 8, '0', STR_PAD_LEFT);

        $herbs = [];

        $data = [
            'sn' => $sn,
            'prescription_name' => '系统代开',
            'prescription_type' => '浓缩水丸',
            'dosage_amount' => 1.0,
            'dosage_unit' => 'g',
            'dosage_bag_count' => 1,
            'need_decoction' => 0,
            'bags_per_dose' => 1,
            'diagnosis_id' => $diagnosisId,
            'appointment_id' => $appointmentId,
            'patient_id' => 0,
            'patient_name' => (string) ($diagnosis->patient_name ?? ''),
            'gender' => (int) ($diagnosis->gender ?? 0),
            'age' => (int) ($diagnosis->age ?? 0),
            'phone' => (string) ($diagnosis->phone ?? ''),
            'visit_no' => $visitNo,
            'prescription_date' => $dateYmd,
            'pulse' => (string) ($diagnosis->pulse ?? ''),
            'pulse_condition' => '',
            'tongue' => (string) ($diagnosis->tongue ?? ''),
            'tongue_image' => '',
            'clinical_diagnosis' => $clinical,
            'case_record' => [],
            'herbs' => $herbs,
            'dose_count' => 1,
            'dose_unit' => '剂',
            'usage_days' => 7,
            'times_per_day' => 2,
            'usage_instruction' => '',
            'usage_time' => '饭后',
            'usage_way' => '温水送服',
            'dietary_taboo' => '',
            'usage_notes' => '',
            'amount' => 0.0,
            'doctor_name' => $doctorName,
            'doctor_signature' => '',
            'template_id' => 0,
            'is_shared' => 0,
            'is_system_auto' => 1,
            'visible_role_ids' => self::normalizeVisibleRoleIds([]),
            'audit_status' => 0,
            'audit_time' => null,
            'audit_by' => null,
            'audit_by_name' => '',
            'audit_remark' => '',
            'creator_id' => $doctorId,
            'assistant_id' => $assistantIdForRx,
        ];

        $prescription = new Prescription();
        $prescription->save($data);

        return (int) $prescription->id;
    }

    /**
     * 作废处方
     */
    public static function void(int $id, int $adminId, string $adminName): bool
    {
        $row = Prescription::find($id);
        if (!$row) {
            self::setError('处方不存在');
            return false;
        }
        if ((int)($row->void_status ?? 0) === 1) {
            self::setError('该处方已作废');
            return false;
        }
        $rxId = (int) ($row->id ?? 0);
        $bizCount = (int) PrescriptionOrder::where('prescription_id', $rxId)
            ->whereNull('delete_time')
            ->where('fulfillment_status', '<>', 4)
            ->count();
        if ($bizCount > 0) {
            self::setError('该处方已存在业务订单，无法作废');

            return false;
        }
        $row->void_status = 1;
        $row->void_time = time();
        $row->void_by = $adminId;
        $row->void_by_name = $adminName;
        return $row->save();
    }
}