// ============================================
// 공통 응답 타입
// ============================================
export interface ApiResponse<T> {
  success: boolean;
  message: string;
  data: T;
  errorCode?: string;
}

export interface Page<T> {
  content: T[];
  totalElements: number;
  totalPages: number;
  number: number;
  size: number;
}

// ============================================
// 공용 코드/상태 유니온
// ============================================
export type RoleCode = 'ADMIN' | 'MANAGER' | 'EMPLOYEE';
export type EmpStatus = 'ACTIVE' | 'ON_LEAVE' | 'RESIGNED';
export type DispatchStatus = 'WAITING' | 'DISPATCHED';

export type TicketStatus = 'OPEN' | 'ASSIGNED' | 'IN_PROGRESS' | 'RESOLVED' | 'CLOSED' | 'PENDING_APPROVAL' | 'APPROVED' | 'REJECTED';
export type TicketCategory = 'BUG' | 'FEATURE' | 'SUPPORT' | 'QA' | 'VACATION' | 'EXPENSE' | 'EQUIPMENT_REQUEST' | 'GENERAL';
export type TicketPriority = 'LOW' | 'NORMAL' | 'HIGH' | 'CRITICAL';

export type ReportType = 'DAILY' | 'WEEKLY' | 'MONTHLY' | 'RETURN';
export type ReportStatus = 'DRAFT' | 'SUBMITTED' | 'APPROVED' | 'REJECTED';

export type EquipmentType = 'LAPTOP' | 'MONITOR' | 'TEST_DEVICE' | 'ACCESSORY';
export type EquipmentStatus = 'AVAILABLE' | 'IN_USE' | 'REPAIRING' | 'RETIRED' | 'LOST';
export type MaintenanceType = 'REPAIR' | 'UPGRADE' | 'INSPECTION' | 'DISPOSAL';

export type ProjectType = 'SI' | 'SM' | 'MIGRATION';
export type ContractType = 'TURN_KEY' | 'MM';
export type ProjectStatus = 'PREPARING' | 'ONGOING' | 'COMPLETED' | 'HOLD';
export type WorkLocationType = 'ON_SITE' | 'REMOTE' | 'HYBRID';

export type TrainingStatus = 'NOT_STARTED' | 'ONGOING' | 'COMPLETED';

// ============================================
// Employee (직원)
// ============================================
export interface Employee {
  empId: number;
  loginId: string;
  name: string;
  email: string;
  phone: string;
  roleCode: RoleCode;
  empStatus: EmpStatus;
  dispatchStatus: DispatchStatus;
  joinedDate: string;
  leftDate: string | null;
  position: string | null;
  profileImage: string | null;
  managerId?: number;
  backupManagerId?: number;
  emergencyContacts?: EmergencyContact[];
}

export interface EmergencyContact {
  id: number;
  empId: number;
  name: string;
  relation: string | null;
  phone: string | null;
  sortOrder: number;
}

export interface EmployeeSearchResult {
  empId: number;
  name: string;
  roleCode: RoleCode;
  dispatchStatus: DispatchStatus;
  email: string;
}

// ============================================
// Project (프로젝트)
// ============================================
export interface Project {
  projectId: number;
  projectType: ProjectType;
  projectName: string;
  contractCompany: string;
  endUserCompany: string;
  contractType: ContractType;
  status: ProjectStatus;
  startDate: string;
  endDate: string;
  workLocationType: WorkLocationType;
  workAddress: string;
  techEnvironment: string;
  mainTaskDesc: string;
  internalManagerId: number | null;
  internalManager?: { empId: number; name: string; email: string; } | null;
}

// ============================================
// DispatchHistory (파견 이력 / 포트폴리오)
// ============================================
export interface DispatchHistory {
  dispatchId: number;
  empId: number;
  projectId: number;
  projectName?: string;
  startDate: string;
  endDate: string | null;
  roleTitle: string;
  contributionRate: number;
  individualTech: string;
  performedTasks: string;
  achievements: string | null;
  clientFeedback: string | null;
  internalRating: number | null;
}

// ============================================
// IssueTicket (SR 티켓)
// ============================================
export interface IssueTicket {
  ticketId: number;
  projectId?: number;
  projectName?: string;
  requesterId: number;
  requesterName?: string;
  assigneeId: number | null;
  assigneeName?: string | null;
  category: TicketCategory;
  priority: TicketPriority;
  title: string;
  description: string;
  status: TicketStatus;
  dueDate: string | null;
  resolvedAt: string | null;
  resolutionNote: string | null;
  slaWarnFlag: 'Y' | 'N';
  isImminent?: boolean;
  createdAt: string;
  updatedAt: string;
  attachmentUrl?: string;
  attachmentName?: string;
  approverId?: number;
  backupApproverId?: number;
  approvedBy?: number;
  approvedAt?: string;
}

export interface TicketComment {
  commentId: number;
  ticketId: number;
  userId: number;
  userName?: string;
  commentText: string;
  attachedFileUrl: string | null;
  createdAt: string;
}

// ============================================
// WorkReport (업무 보고서)
// ============================================
export interface WorkReport {
  reportId: number;
  dispatchId: number;
  userId: number;
  userName?: string;
  reportType: ReportType;
  targetDate: string;
  completedTasks: string;
  plannedTasks: string;
  issuesAndRisks: string | null;
  supportRequested: string | null;
  status: ReportStatus;
  workHours?: number | null;
  blockerFlag?: string;
  artifacts?: string;
  reviewerId: number | null;
  reviewerName?: string | null;
  reviewComment: string | null;
  createdAt: string;
  updatedAt: string;
}

// ============================================
// Equipment (IT 자산)
// ============================================
export interface EquipmentImage {
  url: string;
  name: string;
  uploadedAt: string;
}

export interface Equipment {
  equipmentId: number;
  equipmentType: EquipmentType;
  manufacturer: string;
  modelName: string;
  serialNumber: string;
  assetCode: string;
  specifications: Record<string, string>;
  status: EquipmentStatus;
  purchaseDate: string;
  warrantyExpDate: string;
  version: number;
  images?: EquipmentImage[] | string;
}

export interface SystemConfig {
  configId: number;
  configKey: string;
  configValue: string;
  description: string;
}

export interface MenuPermission {
  id: number;
  menuKey: string;
  menuName: string;
  parentKey: string | null;
  allowedRoles: string;
  sortOrder: number;
}

export interface EquipmentSummary {
  counts: Record<string, number>;
}

export interface EquipmentAssignment {
  assignmentId: number;
  equipmentId: number;
  userId: number;
  userName?: string;
  assignedDate: string;
  returnedDate: string | null;
  condOnAssign: string;
  condOnReturn: string | null;
  equipment?: {
    equipmentId: number;
    assetCode: string;
    manufacturer: string;
    modelName: string;
    serialNumber: string;
    equipmentType: string;
    status: string;
  };
}

export interface EquipmentMaintenance {
  maintenanceId: number;
  equipmentId: number;
  reportedBy: number;
  reporterName?: string;
  maintenanceType: MaintenanceType;
  issueDescription: string;
  actionTaken: string | null;
  cost: number;
  reportedDate: string;
  resolvedDate: string | null;
}

// ============================================
// Training (교육 진도)
// ============================================
export interface TrainingProgress {
  progressId: number;
  userId: number;
  courseName: string;
  progressRate: number;
  status: TrainingStatus;
  updatedAt: string;
}

export interface TrainingSummary {
  courseName: string;
  totalEnrolled: number;
  completedCount: number;
  avgProgress: number;
}

// ============================================
// Notification (알림)
// ============================================
export interface Notification {
  notificationId: number;
  type: string;
  title: string;
  message: string;
  isRead: boolean;
  linkUrl?: string;
  createdAt: string;
}

// ============================================
// CalendarEvent (통합 일정)
// ============================================
export interface CalendarEvent {
  eventType: 'TICKET_DUE' | 'REPORT_DUE' | 'DISPATCH_START' | 'DISPATCH_END';
  sourceId: number;
  title: string;
  description?: string;
  eventDate: string;
  color: string;
  linkUrl?: string;
}

// ============================================
// ReportSummary (보고서 결재 요약)
// ============================================
export interface ReportSummary {
  submitted: number;
  approved: number;
  rejected: number;
  draft: number;
}

// ============================================
// Parking (서버 파킹)
// ============================================
export interface ParkingStatus {
  parked: boolean;
  message: string;
  resumeTime: string;
  parkingSchedule: string;
}

export interface WakeRequest {
  requestedBy: string;
  reason: string;
  requestedAt: string;
}

export interface WakeResponse {
  success: boolean;
  message: string;
  estimatedWakeTime: string | null;
}

// ============================================
// Auth
// ============================================
export interface LoginRequest {
  email: string;
  password: string;
}

export interface LoginResponse {
  accessToken: string;
  refreshToken: string;
  employee: Employee;
}

// ============================================
// Common Code
// ============================================
export interface CommonCode {
  codeId: number;
  groupCode: string;
  codeValue: string;
  codeName: string;
  optionVal1: string | null;
  optionVal2: string | null;
  sortOrder: number;
  isActive: 'Y' | 'N';
}