module EditableComponents

# File lib/editable_components.rb, line 4
def self.config( options = {} )
  #   p '> [TODO] EditableComponents.config'
  @@config.merge! options
  @@config
end

# File lib/editable_components.rb, line 10
def self.publish( parent, version )
  v = version.to_i
  if v > 0
    v2 = Time.now.to_i
    parent.ec_blocks.where( version: 0 ).update_all( version: v2 )
    parent.ec_blocks.where( version: v ).update_all( version: 0 )
    v2
  else
    v = Time.now.to_i
    blocks = []
    parent.ec_blocks.where( version: 0 ).each do |block|
      blocks << block.amoeba_dup
      blocks.last.version = v
    end
    parent.ec_blocks << blocks
    parent.save
    # TODO: delete old versions
    v
  end
end

# File lib/editable_components.rb, line 31
def self.update( parent, params )
  ret = true
  if params[:ec_cmp]
    # TODO: return false on errors and set errors
    version = params[:version].to_i
    params[:ec_cmp].each do |type, fields|
      model = ( 'EditableComponents::' + type ).constantize rescue nil
      if model
        if model.ancestors.include?( EditableComponents::Item )
          # Update an item
          fields.each do |k, v|
            item = model.find_by_id k
            if item
              if !item.update_data( v )
                ret = false
                parent.errors.add :base, item.errors[:base]
              end
            end
          end
        elsif type == 'Block'
          fields.each do |k, v|
            block = EditableComponents::Block.find_by_id k
            if block
              if v.delete( '_destroy' )
                # Destroy a block
                block.destroy
              else
                if( add = v.delete( '_add' ) )
                  # Create new sub blocks
                  t = block.block_type.to_sym
                  add.keys.each do
                    if @@config[:ec_blocks][t] && @@config[:ec_blocks][t][:children_type]
                      sub_block = EditableComponents::Block.new( parent: block, block_type: @@config[:ec_blocks][t][:children_type], version: version )
                      sub_block.save
                      # TODO: return errors
                    end
                  end
                end
                # Update a block
                block.update( v.permit( :position, :published ) )
              end
            elsif( add = v.delete( '_add' ) )
              # Create new blocks
              add.each do |index, new_type|
                t = new_type.to_sym
                # TODO: check if t is a valid block type
                EditableComponents::Block.new( parent: parent, block_type: t, version: version ).save
              end
            end
          end
        end
      end
    end
  end
  ret
end