class MasterviewController < ApplicationController
  
  def index
    redirect_to :action => :list
  end

  def list
    template_specs, content_hash = MasterView::TemplateSpec.scan
    @template_specs_sorted = template_specs.sort
    smart_render 'masterview/admin/list'
  end

  def rebuild_all
    files_rebuilt = []
    MasterView::TemplateSpec.scan do |template_spec, content_hash|
      if template_spec.status == MasterView::TemplateSpec::Status::ImportsOutdated &&
         template_spec.rebuild_template(content_hash, :write_to_file => true)
            files_rebuilt << template_spec.path
      end
    end
    unless files_rebuilt.empty?
      flash[:notice] = files_rebuilt.join(', ')+' were updated'
    end
    redirect_to :action => :list
  end

  def rebuild
    path = params[:id]
    template_specs, content_hash = MasterView::TemplateSpec.scan
    template_spec = template_specs[path]
    raise 'Template '+path+' not found' unless template_spec
    if template_spec.rebuild_template(content_hash, :write_to_file => true)
      flash[:notice] = 'File '+path+' updated'
    else
      flash[:notice] = 'Identical content - no update needed for '+path
    end
    redirect_to :action => :list
  end

  def create
    if @request.post?
      action_to_create = params[:action_name]
      short_name = File.basename(params[:id])
      src_file = File.join('app/views', MasterView::TemplateSrcRelativePath, short_name)

      empty_file_path = find_path('app/views/masterview/admin/empty.rhtml')
      empty_insert_erb = File.readlines(empty_file_path).join

      dst_file = MasterView::TemplateSpec.create_empty_shell_for_action(src_file, action_to_create, empty_insert_erb, :write_to_file => true)
      flash[:notice] = dst_file+' was created'
      redirect_to :action => :list
    else
      smart_render 'masterview/admin/create'
    end
  end

  private 

  # checks app path first for views and files, then falls back to files in MV
  def find_path(path)
    local_path = File.join(RAILS_ROOT, path)
    mv_path = File.join(File.dirname(__FILE__), '../..', path)
    working_path = (File.exist?(local_path)) ? local_path : mv_path
  end

  # render local template file if exists otherwise render file from mv
  def smart_render(short_path)
    local_path = File.join(RAILS_ROOT, 'app/views', short_path)+'.rhtml'
    if File.exist?(local_path)
      render :template => short_path
    else
       mv_path = File.join(File.dirname(__FILE__), '../../app/views', short_path)+'.rhtml'
       MasterView::Log.debug { 'mv_path='+mv_path }
       render :file => mv_path
    end
  end

end