export const SERVICE_CATEGORIES = [
  'OLD_AGE',
  'WOMEN',
  'CHILD',
  'DISABILITY',
  'LIFE_DIFFICULTY',
  'OTHER',
] as const;
export type ServiceCategory = (typeof SERVICE_CATEGORIES)[number];

export const APPLICATION_APPLY_MODES = [
  'SELF',
  'FAMILY',
  'COMMUNITY',
  'VOLUNTEER',
  'OTHER',
] as const;
export type ApplicationApplyMode = (typeof APPLICATION_APPLY_MODES)[number];

export const SERVICE_APPLICATION_STATUSES = [
  'SUBMITTED',
  'PENDING_CONTACT',
  'ASSESSING',
  'REJECTED',
  'OUT_OF_SCOPE',
  'REFERRED',
  'ACCEPTED',
  'SERVICE_PLANNED',
  'IN_SERVICE',
  'SERVICE_COMPLETED',
  'FOLLOW_UP_PENDING',
  'CLOSED',
  'CANCELLED',
  'SUSPENDED',
] as const;
export type ServiceApplicationStatus = (typeof SERVICE_APPLICATION_STATUSES)[number];

export const SERVICE_CATEGORY_LABELS: Record<ServiceCategory, string> = {
  OLD_AGE: '关爱老人',
  WOMEN: '困境妇女',
  CHILD: '儿童关爱',
  DISABILITY: '残障帮扶',
  LIFE_DIFFICULTY: '生活困难',
  OTHER: '其他服务',
};

export const APPLICATION_APPLY_MODE_LABELS: Record<ApplicationApplyMode, string> = {
  SELF: '为自己申请',
  FAMILY: '帮家人申请',
  COMMUNITY: '社区或机构代办',
  VOLUNTEER: '志愿者代办',
  OTHER: '其他代办',
};

export const SERVICE_APPLICATION_STATUS_LABELS: Record<ServiceApplicationStatus, string> = {
  SUBMITTED: '已提交',
  PENDING_CONTACT: '工作人员正在联系',
  ASSESSING: '需求评估中',
  REJECTED: '暂未通过',
  OUT_OF_SCOPE: '超出当前服务范围',
  REFERRED: '已协助转介',
  ACCEPTED: '已受理',
  SERVICE_PLANNED: '服务安排中',
  IN_SERVICE: '服务进行中',
  SERVICE_COMPLETED: '服务已完成',
  FOLLOW_UP_PENDING: '等待回访',
  CLOSED: '服务已结束',
  CANCELLED: '申请已取消',
  SUSPENDED: '服务暂缓',
};

export interface ServiceCategoryOption {
  code: ServiceCategory;
  label: string;
  description: string;
}

export interface ServiceCategoriesResponse {
  items: ServiceCategoryOption[];
}

export interface CreateServiceApplicationRequest {
  clientRequestId: string;
  serviceCategory: ServiceCategory;
  applyMode: ApplicationApplyMode;
  beneficiaryName: string;
  contactMobile: string;
  regionCode: string;
  description: string;
  preferredContactTime?: string;
  needsHomeVisit?: boolean;
  mobilityDifficulty?: boolean;
  privacyConsent: true;
}

export interface ServiceApplicationHistoryItem {
  status: ServiceApplicationStatus;
  statusLabel: string;
  reasonLabel: string;
  createdAt: string;
}

export interface ServiceApplicationListItem {
  publicId: string;
  applicationNo: string;
  serviceCategory: ServiceCategory;
  serviceCategoryLabel: string;
  applyMode: ApplicationApplyMode;
  applyModeLabel: string;
  beneficiaryName: string;
  contactMobileMasked: string;
  regionCode: string;
  status: ServiceApplicationStatus;
  statusLabel: string;
  submittedAt: string;
}

export interface ServiceApplicationDetail extends ServiceApplicationListItem {
  contactMobile: string;
  description: string;
  preferredContactTime: string | null;
  needsHomeVisit: boolean | null;
  mobilityDifficulty: boolean | null;
  history: ServiceApplicationHistoryItem[];
}

export interface CreateServiceApplicationResponse {
  application: ServiceApplicationDetail;
  idempotentReplay: boolean;
}

export interface PaginatedServiceApplicationsResponse {
  items: ServiceApplicationListItem[];
  page: number;
  pageSize: number;
  total: number;
}

export interface ServiceApplicationDetailResponse {
  application: ServiceApplicationDetail;
}

export interface AdminServiceApplicationQuery {
  page?: number;
  pageSize?: number;
  applicationNo?: string;
  serviceCategory?: ServiceCategory;
  status?: ServiceApplicationStatus;
}