class ToDoItem {
  constructor (toDoItem, date, finalDate = undefined) {
    let _text = toDoItem;
    this.getText = function() {
      return _text;
    };
    //kontrollerar värdet med get, set.
    Object.defineProperty(this, 'text', {
        get: function() {
          return _text;
        },
        set: function(string) {
            if (typeof string !== 'string') {
              throw new TypeError('TypeError');
            } else if (!(string.length > 0 && string.length < 51)) {
              throw new Error('Error');
            }
            _text = string;
          },
        catch(e) {
          console.log(e);
        }
      });
    let _dueDate = new Date(date);
    this.getDueDate = function() {
      return _dueDate;
    };
    //kontrollerar värdet med get, set.
    Object.defineProperty(this, 'dueDate', {
        get: function() {
            return new Date(_dueDate);
          },
        set: function(getDate) {
            if (typeof getDate !== 'object' || getDate === null ||
                Array.isArray(getDate) === true || (Object.keys(getDate).length ===
              0 && getDate.constructor === Object)) {
              throw new TypeError('TypeError');
            }
            _dueDate = new Date(getDate);
          },
        catch(e) {
          console.log(e);
        }
      });
    let _finishedDate = finalDate;
    if (typeof finalDate !== 'undefined') {
      _finishedDate = new Date(finalDate);
    }

    this.getFinishedDate = function() {
      return _finishedDate;
    };
    //kontrollerar värdet med get, set.
    Object.defineProperty(this, 'finishedDate', {
        get: function() {
            return new Date(_finishedDate);
          },
        set: function(date) {
            if (typeof date !== 'object' || (Object.keys(date).length ===
              0 && date.constructor === Object) && typeof date !== 'undefined') {
              throw new Error('typeError');
            }
            if (typeof date === 'undefined') {
              _finishedDate = undefined;
            } else {
              _finishedDate = new Date(date);
            }
            if (_finishedDate < _dueDate) {
              _isDone = true;
              _isOverdue = false;
            } else {
              _isDone = false;
              _isOverdue = true;
            }
          }
      });
    let _isDone = false;
    //read me
    Object.defineProperty(this, 'isDone', {
        get: function() {
            return _isDone;
          }
      });
    let _isOverdue = false;
    this.getOverdue = function() {
      return _isOverdue;
    };
    //read me
    Object.defineProperty(this, 'isOverdue', {
        get: function() {
            return _isOverdue;
          }
      });
  }
  //tar privata värden från funktionen som kallar och gör en ny objekt
  clone() {
    return new ToDoItem(this.getText(), new Date(this.getDueDate()),
      new Date(this.getFinishedDate()));
  }
  toJson() {
    // ??
  }
  //tar privata värden och sätter in i retur, konverterar det till en sträng
  toString() {
    if (this.getOverdue() === true) {
      return String('* ' + this.getText() + ' ' + this.getDueDate());
    } else if (this.getOverdue() === false) {
      return String('  ' + this.getText() + ' ' + this.getDueDate());
    }
  }
}

---------------------------------------------------------------------------------------------------

class ToDoList {
  constructor (name, color, toDoItems) {
    let _name = name;
    this.getName = function() {
      return _name;
    };
    //kontrollerar värdet med get, set.
    Object.defineProperty(this, 'name', {
      get: function() {
        return _name;
      },
      set: function(string) {
        if (typeof string !== 'string') {
          throw new TypeError('TypeError');
        } else if (!(string.length > 0 && string.length < 31)) {
          throw new Error('Error');
        }
        _name = string;
      },
      catch(e) {
        console.log(e);
      }
    });
    let _color = color || 'yellow';
    this.getColor = function() {
      return _color;
    };
    //kontrollerar värdet med get, set.
    Object.defineProperty(this, 'color', {
      get: function() {
        return _color;
      },
      set: function(string) {
        if (typeof string !== 'string') {
          throw new TypeError('TypeError');
        } else if (!(string.length > 0 && string.length < 21)) {
          throw new Error('Error');
        }
        _color = string;
      },
      catch(e) {
        console.log(e);
      }
    });
    let _toDoItems = [];
    _toDoItems.push(toDoItems);
    this.doItems = function() {
      return this.specificClone(_toDoItems);
    };
    //kontrollerar värdet med get, set.
    Object.defineProperty(this, 'toDoItem', {
      get: function() {
        return this.specificClone(toDoItems);
      },
      set: function(obj) {
        if (typeof obj !== 'object') {
          throw new TypeError('TypeError');
        }
        _toDoItems.push(this.specificClone(toDoItems));
      },
      catch(e) {
        console.log(e);
      }
    });
    let _hasOverdue;
    //read me
    Object.defineProperty(this, 'hasOverdue', {
      get: function() {
        return _hasOverdue;
      }
    });
  }
  specificClone(item) {
    let newClone = [];
    console.log(item);
    for (let turns = 0; turns < item.length; turns++) {
      var obj = item[turns].clone();
      newClone.push(obj);
    }
    return newClone;
  }
  //försökte lägga till privata värdet med variabeln från parametern, misslyckades lösas
  add(toDoItem) {
    this.toDoItem = toDoItem;
  }
  removeFinished() {
    // ??
  }
  //tar privata värden från funktionen som kallar och gör en ny objekt
  clone() {
    let newName = this.getName();
    let newColor = this.getColor();
    let newItems = this.doItems();
    return new ToDoList(newName, newColor, newItems);
  }
  toJson() {
    // ??
  }
  toString() {
    let index = this.doItems();
    for (let turns = 0; turns < index.length; turns++) {
      if (typeof index[turns].getFinishedDate() !== 'undefined') {
        return String(index[turns].getText() + ' ' + index[turns].getDueDate() +
          ' ' + index[turns].getFinishedDate());
      } else {
        return String(index[turns].getText() + ' ' + index[turns].getDueDate());
      }
    }
  }
}

/**
*  Exports.
*/
module.exports = ToDoList;