-- the interfaces  controller

module (..., package.seeall)

default_action = "read"

read = function (self )
	local iface = self.model.get_all_interfaces()
	local status = self.model.get_status()
	-- these actions are available for each interface
	-- **FIXME** This is technically wrong.  The controller should pass
	-- the "script" "prefix" "controller" "action" as separate fields,
	-- since the view could be a cli, not a web interface.  the VIEW
	-- should make a uri from these these elements.
	local actions = { link = self.conf.script .. self.conf.prefix ..
				self.conf.controller .. "/",
			  action = { "create", "read", "update", "delete" } }
	return ( { actions = actions, iface = iface, status=status } )
end

config = function (self )
	local config = read(self)
	for k,v in pairs(config.iface) do
		v['edit']=cfe(
			{name="edit",
			label="Edit this record",
			value="Edit",
			type="link",
			})
	end
	return ( config )
end

-- Accepts form info
-- Returns a cfe object (the form)
update = function(self)
	local iface = self.clientdata.iface or ""
	local result
	local data

	-- If interface is not found, return to list
	result, data = self.model.get_iface_by_name ( iface )
	if result == false then
		redirect(self)
	end

	-- If the "cmd" button was used, then attempt to do the update
	if self.clientdata.cmd then
		-- update the iface info the form gave us
		for k,v in pairs (data) do
			if self.clientdata[k] then 
				data[k].value = self.clientdata[k]
			end
		end
		
		result, data = self.model.update_iface_by_name ( data, data.name.value )
	
		-- If validation worked then return to list
		if result == true then
			redirect(self)
		end
	end

	-- If the "cmddelete" button was used, then attempt to delete the interface
	if self.clientdata.cmddelete then
		self.conf.action = "delete?iface=" .. tostring(self.clientdata.name)
		self.conf.type = "redir"
		error (self.conf)
	end

	-- Hide the 'name' field
	data.name.type="hidden"

	-- If we reach this point in the function, then we are providing a form
	-- for the user to edit (either first time in, or validation failed)

	-- Add a command button 
	data.cmd = cfe({type="action", value="Save", name="cmd", label="Save/Apply above settings"}) 

	-- Add a delete button 
	data.cmddelete = cfe({type="action", value="Delete", name="cmddelete", label="Delete this record"}) 

	return ( cfe ({type="form", 
			option={ script=self.conf.script,
				 prefix=self.conf.prefix,
				 controller = self.conf.controller,
				 action = "update",
				 extra = "?iface=" .. data.name.value },
			value = data,
			clientdata=clientdata,
			} ) )
end



delete = function(self)
	local iface = self.clientdata.iface or ""
	local result
	local data 

	-- If the interface doesn't exist, return to the list now
	result, data = self.model.get_iface_by_name ( iface )
	if result == false  then
		redirect(self)
	end
	

	-- If the cmd button was pressed, then commit the change
	if self.clientdata.cmd then
		if self.clientdata.cmd == "delete" then
			self.model.delete_iface_by_name (iface)
		end
		redirect(self)
	end

	-- Otherwise, return a form
	local me = {}
	me.iface = cfe({name="iface", type="hidden", value = (self.clientdata.iface or "") })
	me.action1 = cfe({name="cmd", type="action", value="delete", label="action"}) 
	me.action2 = cfe({name="cmd", type="action", value="cancel", label="action"}) 

	return ( cfe ({type="form", 
			option={ script=self.conf.script,
				 prefix=self.conf.prefix,
				 controller = self.conf.controller,
				 action = "delete",
				 extra = "?iface=" .. (self.clientdata.iface or "") },
			value = me,
			clientdata=clientdata,
			iface=iface,
			} ) )
end



create = function(self)
	local iface = self.clientdata.iface or ""
	local index = 0
	local result, data = self.model.get_iface_by_name ()

	-- If the "cmd" button was used, then attempt to do the insert
	if self.clientdata.cmd then
		for k,v in pairs (data) do
			if self.clientdata[k] then 
				data[k].value = self.clientdata[k]
			end
		end
		
		result, data = self.model.create_iface_by_name ( iface, data )
		if result then
			redirect(self)
		end
	end

	-- If we reach this point in the function, we are providing a form

	-- Add a command button
	data.cmd = cfe({type="action", value="save", label="action"}) 

	return ( cfe ({type="form", 
			option={ script=self.conf.script,
				 prefix=self.conf.prefix,
				 controller = self.conf.controller,
				 action = "create",
				 extra = "?iface=" .. iface or "" },
			value = data} ) )
end