import { ADD_TASK, ADD_CDB_TASK, TOGGLE_COMPLETED } from "../actionTypes";

import { v4 as uuidv4 } from "uuid";

const initialState = { tasks: [] };

export default function taskReducer(state = initialState, action) {
  switch (action.type) {
    // Used when task is added during session but not committed to cloud
    case ADD_TASK: {
      return {
        ...state,
        tasks: [
          ...state.tasks,
          {
          taskId: action.taskId,
          taskName: action.taskName,
          description: action.description,
          status: action.status,
          parentIds: action.parentIds,
          completed: action.completed,
          },
        ],
      };
    }
    // Used during initial synchronization of the local storage using cloud data
    // a local pouchdb database is also created into which task commits can be done
    // during initialization of the database
    case ADD_CDB_TASK: {
      return {
        ...state,
        tasks: [
          ...state.tasks,
          {
            _id: action.task.taskId,
            taskId: action.task.taskId,
            taskName: action.task.taskName,
            description: action.task.description,
            status: action.task.status,
            parentIds: action.task.parentIds,
            completed: action.task.completed,
          },
        ],
      };
    }
    // Toggle completed
    case TOGGLE_COMPLETED: {
      console.log(action.id);
      return {
        ...state,
        tasks: state.tasks.map((task) =>
          task.taskId === action.id
            ? { ...task, completed: !task.completed }
            : task
        ),
      };
    }
    default:
      return state;
  }
}