import type { TransformList, TransformRecord } from '#/api';

/** 岗位人员资质（接口就绪后替换为真实请求） */
export namespace PersonnelQualificationModel {
  export type QualificationStatus = 'valid' | 'expiring' | 'expired';

  export interface CertificateAttachment {
    id: string;
    name: string;
    url: string;
    type: 'image' | 'pdf';
  }

  export interface Certificate {
    id: string;
    name: string;
    type?: string;
    number: string;
    expiryDate: string;
    longTerm?: boolean;
    status: QualificationStatus;
    attachments: CertificateAttachment[];
  }

  export type OrganizationType = 'enterprise' | 'medicalInstitution';

  export interface Personnel extends TransformRecord {
    organizationType?: OrganizationType;
    enterpriseId?: string;
    enterpriseName: string;
    decoctionCenterId?: string;
    decoctionCenterName: string;
    name: string;
    positions: string[];
    employeeNo: string;
    idNumber: string;
    certificateNames: string;
    qualificationStatus: QualificationStatus;
    certificates: Certificate[];
  }

  export interface PersonnelForm {
    id?: string;
    decoctionCenterId: string;
    decoctionCenterName?: string;
    name: string;
    positions: string[];
    employeeNo: string;
    idNumber: string;
    certificates: Certificate[];
  }

  export interface ListQuery {
    organizationType?: OrganizationType;
    organizationId?: string;
    enterpriseId?: string;
    decoctionCenterId?: string;
    position?: string;
    qualificationStatus?: QualificationStatus;
    keyword?: string;
  }

  export interface ExpirySummary {
    expiredCount: number;
    expiringCount: number;
  }
}

export const POSITION_OPTIONS = [
  { label: '接方、审方', value: '接方、审方' },
  { label: '审方', value: '审方' },
  { label: '配药', value: '配药' },
  { label: '复核', value: '复核' },
  { label: '煎煮', value: '煎煮' },
  { label: '打包', value: '打包' },
];

export const CERTIFICATE_NAME_OPTIONS = [
  { label: '健康证', value: '健康证' },
  { label: '中药调剂员', value: '中药调剂员' },
  { label: '中药保管员', value: '中药保管员' },
  { label: '执业中药师', value: '执业中药师' },
];

export const QUALIFICATION_STATUS_OPTIONS = [
  { label: '有效', value: 'valid' },
  { label: '即将过期', value: 'expiring' },
  { label: '过期', value: 'expired' },
];

export const ORGANIZATION_TYPE_OPTIONS: Array<{
  label: string;
  value: PersonnelQualificationModel.OrganizationType;
}> = [
  { label: '煎药企业', value: 'enterprise' },
  { label: '医疗机构', value: 'medicalInstitution' },
];

export const QUALIFICATION_STATUS_LABELS: Record<
  PersonnelQualificationModel.QualificationStatus,
  string
> = {
  valid: '有效',
  expiring: '即将过期',
  expired: '过期',
};

/** 各证书类型独立的 mock 附件，避免多证共用同一套图片 */
function getDefaultAttachments(
  certName: string,
  index: number,
): PersonnelQualificationModel.CertificateAttachment[] {
  const attachmentSets: Record<
    string,
    PersonnelQualificationModel.CertificateAttachment[]
  > = {
    健康证: [
      {
        id: `health-${index}-1`,
        name: '健康证正面',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-8.jpeg',
        type: 'image',
      },
      {
        id: `health-${index}-2`,
        name: '健康证反面',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-7.jpeg',
        type: 'image',
      },
    ],
    中药保管员: [
      {
        id: `custodian-${index}-1`,
        name: '保管员资格证',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-6.jpeg',
        type: 'image',
      },
      {
        id: `custodian-${index}-2`,
        name: '保管员证书扫描件',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-5.jpeg',
        type: 'image',
      },
    ],
    执业中药师: [
      {
        id: `pharmacist-${index}-1`,
        name: '执业药师资格证',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-4.jpeg',
        type: 'image',
      },
      {
        id: `pharmacist-${index}-2`,
        name: '执业药师注册证',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-3.jpeg',
        type: 'pdf',
      },
    ],
    中药调剂员: [
      {
        id: `dispenser-${index}-1`,
        name: '调剂员资格证',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-2.jpeg',
        type: 'image',
      },
      {
        id: `dispenser-${index}-2`,
        name: '调剂员证书扫描件',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-1.jpeg',
        type: 'image',
      },
    ],
  };

  return (
    attachmentSets[certName] ?? [
      {
        id: `cert-${index}-1`,
        name: '证书附件',
        url: 'https://fastly.jsdelivr.net/npm/@vant/assets/apple-8.jpeg',
        type: 'image',
      },
    ]
  );
}

function buildCertificates(
  items: Array<
    Omit<PersonnelQualificationModel.Certificate, 'id' | 'attachments'> & {
      attachments?: PersonnelQualificationModel.CertificateAttachment[];
    }
  >,
): PersonnelQualificationModel.Certificate[] {
  return items.map((item, index) => ({
    ...item,
    id: `cert-${index + 1}`,
    attachments: item.attachments ?? getDefaultAttachments(item.name, index),
  }));
}

function resolveWorstStatus(
  certificates: PersonnelQualificationModel.Certificate[],
): PersonnelQualificationModel.QualificationStatus {
  if (certificates.some((item) => item.status === 'expired')) return 'expired';
  if (certificates.some((item) => item.status === 'expiring')) return 'expiring';
  return 'valid';
}

function buildPersonnel(
  data: Omit<
    PersonnelQualificationModel.Personnel,
    'certificateNames' | 'qualificationStatus'
  >,
): PersonnelQualificationModel.Personnel {
  const certificateNames = data.certificates.map((item) => item.name).join('、');
  return {
    ...data,
    certificateNames,
    qualificationStatus: resolveWorstStatus(data.certificates),
  };
}

const MOCK_PERSONNEL: PersonnelQualificationModel.Personnel[] = [
  buildPersonnel({
    id: '1',
    organizationType: 'enterprise',
    enterpriseId: 'e1',
    enterpriseName: '重药煎药中心',
    decoctionCenterId: 'c1',
    decoctionCenterName: '重药华东煎药中心2',
    name: '孙明1',
    positions: ['接方、审方'],
    employeeNo: '28473',
    idNumber: '330102199001012839',
    certificates: buildCertificates([
      {
        name: '健康证',
        number: '944895756806594342',
        expiryDate: '2027-3-20',
        status: 'valid',
        type: '健康证',
      },
      {
        name: '中药保管员',
        number: '944895756806594343',
        expiryDate: '2026-4-15',
        status: 'expiring',
        type: '保管员',
      },
      {
        name: '执业中药师',
        number: '944895756806594344',
        expiryDate: '2028-6-30',
        status: 'valid',
        type: '执业药师',
      },
    ]),
  }),
  buildPersonnel({
    id: '2',
    enterpriseId: 'e1',
    enterpriseName: '重药煎药中心',
    decoctionCenterId: 'c1',
    decoctionCenterName: '重药华东煎药中心2',
    name: '孙明2',
    positions: ['审方'],
    employeeNo: '28474',
    idNumber: '330103198802022840',
    certificates: buildCertificates([
      {
        name: '健康证',
        number: '944895756806594345',
        expiryDate: '2025-1-10',
        status: 'expired',
      },
      {
        name: '执业中药师',
        number: '944895756806594346',
        expiryDate: '2027-8-20',
        status: 'valid',
      },
    ]),
  }),
  buildPersonnel({
    id: '3',
    enterpriseId: 'e1',
    enterpriseName: '重药煎药中心',
    decoctionCenterId: 'c1',
    decoctionCenterName: '重药华东煎药中心2',
    name: '孙明3',
    positions: ['配药'],
    employeeNo: '28475',
    idNumber: '330104199203033841',
    certificates: buildCertificates([
      {
        name: '中药调剂员',
        number: '944895756806594347',
        expiryDate: '2026-5-1',
        status: 'expiring',
      },
      {
        name: '健康证',
        number: '944895756806594348',
        expiryDate: '2027-2-18',
        status: 'valid',
      },
    ]),
  }),
  buildPersonnel({
    id: '4',
    enterpriseId: 'e1',
    enterpriseName: '重药煎药中心',
    decoctionCenterId: 'c1',
    decoctionCenterName: '重药华东煎药中心2',
    name: '孙明4',
    positions: ['复核'],
    employeeNo: '28476',
    idNumber: '330105199504044842',
    certificates: buildCertificates([
      {
        name: '健康证',
        number: '944895756806594349',
        expiryDate: '2027-12-31',
        status: 'valid',
      },
    ]),
  }),
  buildPersonnel({
    id: '5',
    enterpriseId: 'e1',
    enterpriseName: '重药煎药中心',
    decoctionCenterId: 'c1',
    decoctionCenterName: '重药华东煎药中心2',
    name: '孙明5',
    positions: ['煎煮'],
    employeeNo: '28477',
    idNumber: '330106199605055843',
    certificates: buildCertificates([
      {
        name: '健康证',
        number: '944895756806594350',
        expiryDate: '2024-12-1',
        status: 'expired',
      },
    ]),
  }),
  buildPersonnel({
    id: '6',
    enterpriseId: 'e1',
    enterpriseName: '重药煎药中心',
    decoctionCenterId: 'c1',
    decoctionCenterName: '重药华东煎药中心2',
    name: '孙明6',
    positions: ['打包'],
    employeeNo: '28478',
    idNumber: '330107199706066844',
    certificates: buildCertificates([
      {
        name: '健康证',
        number: '944895756806594351',
        expiryDate: '2027-9-10',
        status: 'valid',
      },
    ]),
  }),
  buildPersonnel({
    id: '7',
    enterpriseId: 'e2',
    enterpriseName: '杭州中药煎配中心',
    decoctionCenterId: 'c2',
    decoctionCenterName: '西湖煎药中心',
    name: '李明1',
    positions: ['接方、审方'],
    employeeNo: '38473',
    idNumber: '330108199807077845',
    certificates: buildCertificates([
      {
        name: '执业中药师',
        number: '944895756806594352',
        expiryDate: '2026-3-20',
        status: 'expiring',
      },
    ]),
  }),
  buildPersonnel({
    id: '8',
    organizationType: 'enterprise',
    enterpriseId: 'e2',
    enterpriseName: '杭州中药煎配中心',
    decoctionCenterId: 'c2',
    decoctionCenterName: '西湖煎药中心',
    name: '李明2',
    positions: ['配药'],
    employeeNo: '38474',
    idNumber: '330109199908088846',
    certificates: buildCertificates([
      {
        name: '中药调剂员',
        number: '944895756806594353',
        expiryDate: '2027-6-15',
        status: 'valid',
      },
    ]),
  }),
  buildPersonnel({
    id: '9',
    organizationType: 'medicalInstitution',
    enterpriseId: 'm1',
    enterpriseName: '蒋村社区卫生服务中心',
    decoctionCenterId: 'c3',
    decoctionCenterName: '蒋村煎药中心',
    name: '王芳',
    positions: ['接方、审方'],
    employeeNo: '48473',
    idNumber: '330110199001011234',
    certificates: buildCertificates([
      {
        name: '健康证',
        number: '944895756806594360',
        expiryDate: '2027-5-20',
        status: 'valid',
      },
      {
        name: '执业中药师',
        number: '944895756806594361',
        expiryDate: '2026-2-10',
        status: 'expiring',
      },
    ]),
  }),
  buildPersonnel({
    id: '10',
    organizationType: 'medicalInstitution',
    enterpriseId: 'm2',
    enterpriseName: '西湖区中医院',
    decoctionCenterId: 'c4',
    decoctionCenterName: '西湖区中医院煎药室',
    name: '赵强',
    positions: ['配药'],
    employeeNo: '48474',
    idNumber: '330111198803022345',
    certificates: buildCertificates([
      {
        name: '中药调剂员',
        number: '944895756806594362',
        expiryDate: '2027-8-1',
        status: 'valid',
      },
    ]),
  }),
];

let mockStore = [...MOCK_PERSONNEL];

function filterPersonnel(
  list: PersonnelQualificationModel.Personnel[],
  query?: PersonnelQualificationModel.ListQuery,
) {
  if (!query) return list;

  return list.filter((item) => {
    const organizationId = query.organizationId ?? query.enterpriseId;
    const organizationType = query.organizationType ?? 'enterprise';

    if (organizationId) {
      const itemType = item.organizationType ?? 'enterprise';
      if (itemType !== organizationType) {
        return false;
      }
      if (item.enterpriseId !== organizationId) {
        return false;
      }
    }
    if (
      query.decoctionCenterId &&
      item.decoctionCenterId !== query.decoctionCenterId
    ) {
      return false;
    }
    if (query.position && !item.positions.includes(query.position)) {
      return false;
    }
    if (
      query.qualificationStatus &&
      item.qualificationStatus !== query.qualificationStatus
    ) {
      return false;
    }
    if (query.keyword) {
      const keyword = query.keyword.trim();
      if (
        !item.name.includes(keyword) &&
        !item.employeeNo.includes(keyword)
      ) {
        return false;
      }
    }
    return true;
  });
}

function computeExpirySummary(): PersonnelQualificationModel.ExpirySummary {
  let expiredCount = 0;
  let expiringCount = 0;

  for (const person of mockStore) {
    if (person.qualificationStatus === 'expired') expiredCount += 1;
    else if (person.qualificationStatus === 'expiring') expiringCount += 1;
  }

  return { expiredCount, expiringCount };
}

/** 岗位人员资质列表（当前为本地 mock，后期对接后端接口） */
export function listPersonnelQualificationsMethod(
  page = 1,
  size = 10,
  query?: PersonnelQualificationModel.ListQuery,
): Promise<TransformList<PersonnelQualificationModel.Personnel>> {
  const filtered = filterPersonnel(mockStore, query);
  const start = (page - 1) * size;
  const items = filtered.slice(start, start + size);
  return Promise.resolve({
    items,
    total: filtered.length,
    data: { page, size, total: filtered.length },
  });
}

/** 资质到期统计（当前为本地 mock） */
export function getPersonnelQualificationSummaryMethod(): Promise<PersonnelQualificationModel.ExpirySummary> {
  return Promise.resolve(computeExpirySummary());
}

/** 岗位人员资质详情（当前为本地 mock） */
export function getPersonnelQualificationMethod(id: string) {
  const item = mockStore.find((row) => row.id === id);
  if (!item) {
    return Promise.reject(new Error('人员记录不存在'));
  }
  return Promise.resolve({ ...item });
}

/** 新增/修改岗位人员资质（当前为本地 mock） */
export function editPersonnelQualificationMethod(
  data: PersonnelQualificationModel.PersonnelForm,
) {
  const certificates = data.certificates.map((cert, index) => ({
    ...cert,
    id: cert.id || `cert-${Date.now()}-${index}`,
    status: cert.status ?? 'valid',
    attachments: cert.attachments ?? [],
  }));

  const enterpriseName =
    mockStore.find((item) => item.decoctionCenterId === data.decoctionCenterId)
      ?.enterpriseName ?? '重药煎药中心';
  const decoctionCenterName =
    data.decoctionCenterName ??
    mockStore.find((item) => item.decoctionCenterId === data.decoctionCenterId)
      ?.decoctionCenterName ??
    '重药华东煎药中心2';

  const payload = buildPersonnel({
    id: data.id ?? String(Date.now()),
    enterpriseId: mockStore.find(
      (item) => item.decoctionCenterId === data.decoctionCenterId,
    )?.enterpriseId,
    enterpriseName,
    decoctionCenterId: data.decoctionCenterId,
    decoctionCenterName,
    name: data.name,
    positions: data.positions,
    employeeNo: data.employeeNo,
    idNumber: data.idNumber,
    certificates,
  });

  if (data.id) {
    const index = mockStore.findIndex((item) => item.id === data.id);
    if (index === -1) {
      return Promise.reject(new Error('人员记录不存在'));
    }
    mockStore[index] = payload;
  } else {
    mockStore = [payload, ...mockStore];
  }

  return Promise.resolve(payload);
}

/** 删除岗位人员资质（当前为本地 mock） */
export function deletePersonnelQualificationMethod(id: string) {
  const index = mockStore.findIndex((item) => item.id === id);
  if (index === -1) {
    return Promise.reject(new Error('人员记录不存在'));
  }
  mockStore.splice(index, 1);
  return Promise.resolve(true);
}

/** 煎药企业选项（mock） */
export function optionsPersonnelEnterpriseMethod() {
  const map = new Map<string, string>();
  for (const item of mockStore) {
    if ((item.organizationType ?? 'enterprise') !== 'enterprise') continue;
    if (item.enterpriseId) {
      map.set(item.enterpriseId, item.enterpriseName);
    }
  }
  return Promise.resolve(
    [...map.entries()].map(([value, label]) => ({ label, value })),
  );
}

/** 医疗机构选项（mock） */
export function optionsPersonnelMedicalInstitutionMethod() {
  const map = new Map<string, string>();
  for (const item of mockStore) {
    if (item.organizationType !== 'medicalInstitution') continue;
    if (item.enterpriseId) {
      map.set(item.enterpriseId, item.enterpriseName);
    }
  }
  return Promise.resolve(
    [...map.entries()].map(([value, label]) => ({ label, value })),
  );
}

/** 煎药中心选项（mock） */
export function optionsPersonnelDecoctionCenterMethod(
  organizationId?: string,
  organizationType: PersonnelQualificationModel.OrganizationType = 'enterprise',
) {
  const map = new Map<string, string>();
  for (const item of mockStore) {
    const itemType = item.organizationType ?? 'enterprise';
    if (itemType !== organizationType) continue;
    if (organizationId && item.enterpriseId !== organizationId) continue;
    if (item.decoctionCenterId) {
      map.set(item.decoctionCenterId, item.decoctionCenterName);
    }
  }
  return Promise.resolve(
    [...map.entries()].map(([value, label]) => ({ label, value })),
  );
}