/**
 * Task data model for the task management system
 * Version 2.0: Unified model supporting unlimited nesting depth
 */
export interface Task {
    /** Unique identifier for the task */
    id: string;
    /** Task name */
    name: string;
    /** Enhanced task description */
    details: string;
    /** Reference to parent project */
    projectId: string;
    /** Reference to parent task (null for top-level tasks) */
    parentId?: string;
    /** Task completion status */
    completed: boolean;
    /** Timestamp when the task was created */
    createdAt: string;
    /** Timestamp when the task was last updated */
    updatedAt: string;
    /** Task dependencies - IDs of tasks that must be completed before this task */
    dependsOn?: string[];
    /** Task priority level (1-10, where 10 is highest priority) */
    priority?: number;
    /** Estimated complexity/effort (1-10, where 10 is most complex) */
    complexity?: number;
    /** Task status beyond just completed (pending, in-progress, blocked, done) */
    status?: 'pending' | 'in-progress' | 'blocked' | 'done';
    /** Tags for categorization and filtering */
    tags?: string[];
    /** Estimated time to complete in hours */
    estimatedHours?: number;
    /** Actual time spent in hours */
    actualHours?: number;
    /** Nesting level for UI optimization (calculated field) */
    level?: number;
}
/**
 * Input data for creating a new task
 */
export interface CreateTaskInput {
    /** Task name */
    name: string;
    /** Enhanced task description */
    details: string;
    /** Reference to parent project */
    projectId: string;
    /** Reference to parent task (optional, null for top-level tasks) */
    parentId?: string;
    /** Task dependencies - IDs of tasks that must be completed before this task */
    dependsOn?: string[];
    /** Task priority level (1-10, where 10 is highest priority) */
    priority?: number;
    /** Estimated complexity/effort (1-10, where 10 is most complex) */
    complexity?: number;
    /** Task status (defaults to 'pending') */
    status?: 'pending' | 'in-progress' | 'blocked' | 'done';
    /** Tags for categorization and filtering */
    tags?: string[];
    /** Estimated time to complete in hours */
    estimatedHours?: number;
}
/**
 * Input data for updating an existing task
 */
export interface UpdateTaskInput {
    /** Task name (optional) */
    name?: string;
    /** Enhanced task description (optional) */
    details?: string;
    /** Reference to parent task (optional) */
    parentId?: string;
    /** Task completion status (optional) */
    completed?: boolean;
    /** Task dependencies - IDs of tasks that must be completed before this task */
    dependsOn?: string[];
    /** Task priority level (1-10, where 10 is highest priority) */
    priority?: number;
    /** Estimated complexity/effort (1-10, where 10 is most complex) */
    complexity?: number;
    /** Task status */
    status?: 'pending' | 'in-progress' | 'blocked' | 'done';
    /** Tags for categorization and filtering */
    tags?: string[];
    /** Estimated time to complete in hours */
    estimatedHours?: number;
    /** Actual time spent in hours */
    actualHours?: number;
}
/**
 * Legacy subtask interface for migration compatibility
 * @deprecated Use Task with parentId instead
 */
export interface LegacySubtask {
    id: string;
    name: string;
    details: string;
    taskId: string;
    projectId: string;
    completed: boolean;
    createdAt: string;
    updatedAt: string;
}
/**
 * Task hierarchy helper types
 */
export interface TaskHierarchy {
    task: Task;
    children: TaskHierarchy[];
    depth: number;
}
/**
 * Task tree traversal result
 */
export interface TaskTreeNode {
    id: string;
    name: string;
    parentId?: string;
    children: string[];
    depth: number;
    path: string[];
}