# Hooks to attach to the Redmine Projects.
class RateProjectHook < Redmine::Hook::ViewListener
  
  def protect_against_forgery?
    false
  end
  
  # Renders an additional table header to the membership setting
  #
  # Context:
  # * :project => Current project
  #
  def view_projects_settings_members_table_header(context ={ })
    return '' unless (User.current.allowed_to?(:view_rate, context[:project]) || User.current.admin?)
    return "<th>#{l(:rate_label_rate)} #{l(:rate_label_currency)}</td>"
  end
  
  # Renders an AJAX from to update the member's billing rate
  #
  # Context:
  # * :project => Current project
  # * :member => Current Member record
  #
  # TODO: Move to a view
  def view_projects_settings_members_table_row(context = { })
    member = context[:member]
    project = context[:project]

    return '' unless (User.current.allowed_to?(:view_rate, project) || User.current.admin?)

    if Object.const_defined? 'Group' # 0.8.x compatibility
      # Groups cannot have a rate
      return content_tag(:td,'') if member.principal.is_a? Group
      rate = Rate.for(member.principal, project)
    else
      rate = Rate.for(member.user, project)
    end

    content = ''
    
    if rate.nil? || rate.default?
      if rate && rate.default?
        content << "<em>#{number_to_currency(rate.amount)}</em> "
      end

      if (User.current.admin?)

      url = {
        :controller => 'rates',
        :action => 'create',
        :method => :post,
        :protocol => Setting.protocol,
        :host => Setting.host_name
      }
      # Build a form_remote_tag by hand since this isn't in the scope of a controller
      # and url_rewriter doesn't like that fact.
      form = form_tag(url, :onsubmit => remote_function(:url => url,
                                                        :host => Setting.host_name,
                                                        :protocol => Setting.protocol,
                                                        :form => true,
                                                        :method => 'post',
                                                        :return => 'false' )+ '; return false;')
      
      form << text_field(:rate, :amount)
      form << hidden_field(:rate,:date_in_effect, :value => Date.today.to_s)
      form << hidden_field(:rate, :project_id, :value => project.id)
      form << hidden_field(:rate, :user_id, :value => member.user.id) 
      form << hidden_field_tag("back_url", url_for(:controller => 'projects', :action => 'settings', :id => project, :tab => 'members', :protocol => Setting.protocol, :host => Setting.host_name))

      form << submit_tag(l(:rate_label_set_rate), :class => "small")
      form << "</form>"
        
      content << form
      end
    else
      if (User.current.admin?)

      content << content_tag(:strong, link_to(number_to_currency(rate.amount), { 
                                                :controller => 'users',
                                                :action => 'edit',
                                                :id => member.user,
                                                :tab => 'rates',
                                                :protocol => Setting.protocol,
                                                :host => Setting.host_name
                                              }))
      else
        content << content_tag(:strong, number_to_currency(rate.amount))
      end
    end
    return content_tag(:td, content, :align => 'left', :id => "rate_#{project.id}_#{member.user.id}" )
  end

  def model_project_copy_before_save(context = {})
    source = context[:source_project]
    destination = context[:destination_project]

    Rate.find(:all, :conditions => {:project_id => source.id}).each do |source_rate|
      destination_rate = Rate.new

      destination_rate.attributes = source_rate.attributes.except("project_id")
      destination_rate.project = destination
      destination_rate.save # Need to save here because there is no relation on project to rate
    end
  end
end