// ==================== Common Types ====================
export type WorkItemStatus = 'Backlog' | 'Todo' | 'InProgress' | 'Done';
export type WorkItemPriority = 'Low' | 'Medium' | 'High' | 'Critical';

// ==================== Project ====================
export interface Project {
  id: string;
  name: string;
  key: string;
  description?: string;
  tenantId: string;
  createdAt: string;
  updatedAt: string;
}

export interface CreateProjectDto {
  name: string;
  key: string;
  description?: string;
}

export interface UpdateProjectDto {
  name: string;
  key: string;
  description?: string;
}

// ==================== Epic ====================
export interface Epic {
  id: string;
  name: string;  // Changed from 'title' to match backend API
  description?: string;
  projectId: string;
  status: WorkItemStatus;
  priority: WorkItemPriority;
  estimatedHours?: number;
  actualHours?: number;
  assigneeId?: string;
  createdBy: string;  // Added to match backend API (required field)
  tenantId: string;
  createdAt: string;
  updatedAt: string;
}

export interface CreateEpicDto {
  projectId: string;
  name: string;  // Changed from 'title' to match backend API
  description?: string;
  priority: WorkItemPriority;
  estimatedHours?: number;
  createdBy: string;  // Added to match backend API (required field)
}

export interface UpdateEpicDto {
  name?: string;  // Changed from 'title' to match backend API
  description?: string;
  priority?: WorkItemPriority;
  estimatedHours?: number;
  actualHours?: number;
}

// ==================== Story ====================
export interface Story {
  id: string;
  title: string;
  description?: string;
  epicId: string;
  projectId: string;
  status: WorkItemStatus;
  priority: WorkItemPriority;
  estimatedHours?: number;
  actualHours?: number;
  assigneeId?: string;
  tenantId: string;
  createdAt: string;
  updatedAt: string;
}

export interface CreateStoryDto {
  epicId: string;
  projectId: string;
  title: string;
  description?: string;
  priority: WorkItemPriority;
  estimatedHours?: number;
  createdBy: string;  // Required field matching backend API
}

export interface UpdateStoryDto {
  title?: string;
  description?: string;
  priority?: WorkItemPriority;
  estimatedHours?: number;
  actualHours?: number;
}

// ==================== Task ====================
export interface Task {
  id: string;
  title: string;
  description?: string;
  storyId: string;
  projectId: string;
  status: WorkItemStatus;
  priority: WorkItemPriority;
  estimatedHours?: number;
  actualHours?: number;
  assigneeId?: string;
  tenantId: string;
  createdAt: string;
  updatedAt: string;
}

export interface CreateTaskDto {
  storyId: string;
  title: string;
  description?: string;
  priority: WorkItemPriority;
  estimatedHours?: number;
}

export interface UpdateTaskDto {
  title?: string;
  description?: string;
  priority?: WorkItemPriority;
  estimatedHours?: number;
  actualHours?: number;
}

// ==================== Legacy Types (for backward compatibility) ====================
// Keep old type names as aliases for gradual migration
export type TaskStatus = WorkItemStatus;
export type TaskPriority = WorkItemPriority;