require 'glue/hash'
require 'nitro/markup'

module Nitro

# FormBuilder.

module FormBuilderMixin
	
	# Render a standard form for the given managed object.
	# If show_all is false then apply field filtering.
	#
	# Example:
	#
	#	<p>
	#		<form name="test">
	#			#{o.build_form(entry)}
	#		</form>
	#	</p>
	
	def build_form(obj, lc = nil, show_all = false)
		str = '<dl>'
		
		for p in obj.class.properties
			unless show_all
				next if :oid == p.symbol
			end
			
			if p.klass.ancestors.include?(Integer) or
					p.klass.ancestors.include?(Float) 
				str << %{
	<dt><label for="#{p.name}">#{p.name}</label></dt>
	<dd>
		<input type="text" id="#{p.name}" name="#{p.name}" value="#{obj.send(p.symbol)}" />
	</dd>
				}
			elsif p.klass.ancestors.include?(String)
				str << %{
	<dt><label for="#{p.name}">#{p.name}</label></dt>
	<dd>
				}
				if p.meta[:markup]
					val = N::Markup.compact(obj.send(p.symbol))
				else
					val = obj.send(p.symbol)
				end
				if :textarea == p.meta[:ui]
					str << %{
		<textarea id="#{p.name}" name="#{p.name}">#{val}</textarea>
					}
				else
					str << %{
		<input type="text" id="#{p.name}" name="#{p.name}" value="#{val}" />
					}				
				end
				str << %{
	</dd>
				}
			elsif p.klass.ancestors.include?(TrueClass)
				str << %{
	<dt><label for="#{p.name}">#{p.name}</label></dt>
	<dd>
		<input type="checkbox" id="#{p.name}" name="#{p.name}" />
	</dd>
				}
			elsif p.klass.ancestors.include?(Time)
				str << %{
	<dt><label for="#{p.name}">#{p.name}</label></dt>
	<dd>
		<input type="text" id="#{p.name}" name="#{p.name}" value="#{obj.send(p.symbol)}" />
	</dd>
				}
=begin
			elsif p.klass.ancestors.include?(Date)
				return %|#\{@#{p.symbol} ? "'#\{Og::Utils.date(@#{p.symbol})\}'" : 'NULL'\}|
			else 
				return %|#\{@#{p.symbol} ? "'#\{Og::Utils.escape(@#{p.symbol}.to_yaml)\}'" : "''"\}|
=end
			end
		end

		str << %{
</dl>}
		
		self << str
	end
	
end

# Abstract class for the FormBuilderMixin.

class FormBuilder
	include FormBuilderMixin

	class << self
		def build(obj, lc = nil, show_all = false)
			FormBuilder.new.build_form(obj, lc, show_all)
		end
	end
end

end