class PettanrSheeter
  @pettanr_current_sheet_id = 0
  
  @new_element_index = {}
  @new_element_index[PettanrSheeter.pettanr_current_sheet_id] = 0
  
  @current_sheet = () ->
    $('#sheet' + PettanrSheeter.pettanr_current_sheet_id.toString())
  
  @set_tree_value = (keys, last_attr, value) ->
    key = keys.shift()
    if keys.length <= 0
      last_attr[key] = value
    else
      last_attr[key] = last_attr[key] || {}
      PettanrSheeter.set_tree_value(keys, last_attr[key], value)

  @is_editting = () ->
    trace = '#sheet' + PettanrSheeter.pettanr_current_sheet_id.toString() + 'wrapper'
    if $(trace) and $(trace).attr('editable')
      return true
    else
      return false
  @is_editable = (p) ->
    if p.parent().attr('editable')
      return true
    else
      return false
  @is_var = (o) ->
    if parseInt(o.attr('no_attr')) > 0
      return false
    else
      if o.attr('column') 
        if o.attr('column') == '_destroy' and o.val().length < 1
          return false
        else
          return true
      else
        return false
  @is_element = (o) ->
    if o.attr('element_type')
      return true
    else
      return false
  @is_element_part = (o) ->
    if o.attr('element_part_type')
      return true
    else
      return false
  @element_is = (element_type, o) ->
    if PettanrSheeter.is_element(o) and o.attr('element_type') == element_type
      return true
    else
      return false
  @element_types  = {'sheet_panel': 'sheet_panels'}
  @element_type_to_table = (element_type) ->
    PettanrSheeter.element_types[element_type]

  @make_tree = (attr, o) ->
    if PettanrSheeter.is_var(o)
      tree = 'sheets-' + o.attr('sheet_id') + '-'
      if PettanrSheeter.is_element(o)
        tree = tree + PettanrSheeter.element_type_to_table(o.attr('element_type')) + '_attributes-' + o.attr('element_id') + '-'
        if PettanrSheeter.is_element_part(o)
          tree = tree + o.attr('element_part_type') + '_attributes-'
      tree = tree + o.attr('column')
      keys = tree.split('-')
      PettanrSheeter.set_tree_value(keys, attr, o.val())
  
  @sheet_tag_id = (element) ->
    '#sheet' + element.attr('sheet_id')
  
  @element_tag_id = (element) ->
    '#sheet' + element.attr('sheet_id') + element.attr('element_type') + element.attr('element_id')
  
  @element_part_tag_id = (element_part) ->
    '#sheet' + element_part.attr('sheet_id') + element_part.attr('element_type') + element_part.attr('element_id') + element_part.attr('element_part_type') + element_part.attr('element_part_id')
  
  @refresh_attribute = (field) ->
    attr = {}
    $('input').map ->
      PettanrSheeter.make_tree(attr, $(@))
    $('textarea').map  ->
      PettanrSheeter.make_tree(attr, $(@))
    $('select').map ->
      PettanrSheeter.make_tree(attr, $(@))
    field.val(JSON.stringify(attr['sheets'][PettanrSheeter.pettanr_current_sheet_id.toString() ]))
  
@PettanrSheeter = PettanrSheeter