VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
END
Attribute VB_Name = "IteratorWork"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Option Explicit

Public row_ As Long
Private data_ As Excel.Worksheet

Public Sub Init(target As Excel.Worksheet, Optional tRow& = WORKER_FIRST_ROW)
  Set data_ = target
  row_ = tRow
  Call SkipFillers
End Sub

Private Function SkipFillers()
  Do
    If data_.Cells(row_, S_W_DATE) = vbNullString Then _
      Exit Function
    If VBA.IsDate(data_.Cells(row_, S_W_DATE)) Then _
      Exit Function
    row_ = row_ + 1
  Loop
End Function

Public Function Increment()
  row_ = row_ + 1
  Call SkipFillers
End Function

Public Function GoFirst()
  row_ = WORKER_FIRST_ROW
  Call SkipFillers
End Function

Public Function GoLast()
  row_ = data_.Columns(S_W_DATE).Find(vbNullString, LookAt:=xlWhole).Row - 1
End Function

Public Function GoUntil(nTargetDate&)
  Do While Not IsDone And DDate < nTargetDate
    Call Increment
  Loop
End Function

Public Function IsDone() As Boolean
  IsDone = data_.Cells(row_, S_W_DATE) = vbNullString
End Function

Public Function IsMergedDescription() As Boolean
  IsMergedDescription = False
  Dim iDescription As Excel.Range: Set iDescription = data_.Cells(row_, S_W_CONTENTS)
  If Not iDescription.MergeCells Then _
    Exit Function
  
  IsMergedDescription = iDescription.MergeArea.Cells(1, 1).Row <> row_
End Function

Public Function RemoveRow()
  Call data_.Rows(row_).Delete
End Function

Public Function AddYear(nYear%)
  data_.Rows(row_).OutlineLevel = 1
  data_.Cells(row_, S_W_DATE) = Fmt("ÃÎÄ: {1}", nYear)
  Call Increment
End Function

Public Function AddMonth(nMonth%)
  data_.Rows(row_).OutlineLevel = 2
  data_.Cells(row_, S_W_DATE) = Fmt("Ìåñÿö: {1}", VBA.MonthName(nMonth))
  Call Increment
End Function

Public Function AddDay(nDate&, bIsHoliday As Boolean)
  data_.Rows(row_).OutlineLevel = 3
  
  DDate = nDate
  WorkType = WORK_DEFAULT
  Duration = 0
  Project = IIf(bIsHoliday, PROJECT_HOLIDAYS, PROJECT_MISSING)
  
  Call Increment
End Function

'===== Propertiy Get =====
Public Property Get DDate() As Long
  DDate = data_.Cells(row_, S_W_DATE)
End Property

Public Property Get Project() As String
  Project = data_.Cells(row_, S_W_PROJECT)
End Property

Public Property Get Duration() As Double
  Duration = data_.Cells(row_, S_W_HOURS)
End Property

Public Property Get WorkType() As String
  WorkType = data_.Cells(row_, S_W_TYPE)
End Property

Public Property Get Description() As String
  If Not IsMergedDescription Then
    Description = data_.Cells(row_, S_W_CONTENTS)
  Else
    Description = data_.Cells(row_, S_W_CONTENTS).MergeArea.Cells(1, 1)
  End If
End Property

' ==== Property Let ====
Public Property Let DDate(newVal&)
  data_.Cells(row_, S_W_DATE) = newVal
End Property

Public Property Let Project(newVal$)
  data_.Cells(row_, S_W_PROJECT) = newVal
End Property

Public Property Let Duration(newVal As Double)
  data_.Cells(row_, S_W_HOURS) = newVal
End Property

Public Property Let WorkType(newVal$)
  data_.Cells(row_, S_W_TYPE) = newVal
End Property

Public Property Let Description(newVal$)
  data_.Cells(row_, S_W_CONTENTS) = newVal
End Property