import { uuidV4, base58UUID } from "../util/uuid"
import { defaults } from "./params";

export type TaskID = string

export enum EstimationConfidence {
    Optimistic = "optimistic",
    Likely = "likely",
    Pessimistic = "pessimistic"
}

export interface Task {
    id: TaskID
    label: string
    category: TaskCategoryID
    estimations: { [confidence in EstimationConfidence]: number }
}

export type TaskCategoryID = string

export interface TaskCategory {
    id: TaskCategoryID
    label: string
    costPerTimeUnit: number
}

export function newTask(label: string, category: TaskCategoryID): Task {
  return {
    id: base58UUID(),
    label,
    category,
    estimations: {
      [EstimationConfidence.Optimistic]: 0,
      [EstimationConfidence.Likely]: 0,
      [EstimationConfidence.Pessimistic]: 0,
    }
  };
}

export function createTaskCategory(): TaskCategory {
  return {
    id: base58UUID(),
    costPerTimeUnit: defaults.costPerTimeUnit,
    label: ""
  };
}