#!/usr/bin/env python
# coding: utf-8
#
#	Tangible Bit text mode client
#	by Smári McCarthy <smari@fabfolk.com>
#
# TODO:
#    Cache settings for some period between executions if running standalone
#    See TODO lists in functions.
#
import sys
import os
import xmlrpclib
import ConfigParser

configfiles = ["tbdefaults.conf", "~/.tangiblebit/tb.conf"]
settings = ConfigParser.ConfigParser()

def LoadSettings():
	# Load settings. RFC 822.
	cfgs = []
	for cfg in configfiles:
		cfgs.append(os.path.abspath(os.path.expanduser(cfg)))
		
	settings.read(cfgs)

def Connection():
	# TODO:
	#   if username and password are set in settings, use the Authenticated XMLRPC module...
	#   if settings["ssl"] == True, use the SSL interface
	return xmlrpclib.Server(settings.get("server", "xmlrpcpath"))

def Help(args):
	print("tb-get - Tangible Bit text mode client")
	print("------------------------------------------------------")
	print("help               - get help")
	print("fetch              - download object definition")
	print("sites              - get a list of sites")
	print("materials          - get a list of properties")
	print("order              - put in an order for an object")
	print("login              - log in to Tangible Bit server")

def Login(args):
	if len(args) < 2:
		print("Provide a username and password to log in.")
		print("You can also specify these in the config file (%s) to log in automagically" % settings["configfile"])
		return False
	settings.set("server", "username", args[0])
	settings.set("server", "password", args[1])

def LoggedIn():
	# TODO: Perhaps this should check if they're actually valid?
	return settings.has_option("server", "username") and settings.has_option("server", "password")

def Fetch(args):
	# TODO: Fetching functionality...
	#   - GetObject not implemented on the XMLRPC
	#   - objects recieved need to be unpacked and put into a folder with appropriate files
	conn = Connection()
	objectname = args[0]
	object = conn.GetObject(objectname)

def Sites(args):
	# TODO: Search functions that make sense for looking up sites
	#  - Get a list of sites
	#  - Get details for a certain site
	#  - Get sites within a certain radius of a certain location
	#  - What orders are currently being processed at a site
	#  - What is the access model of a certain site
	#  - What sites are within a certain region
	pass

def Materials(args):
	# TODO: Search functions that make sense for looking up materials
	#  - which materials fulfil a certain set of properties
	#  - which objects use a certain material
	#  - which materials are available within a certain radius of a certain location
	#  - which materials are available within a certain region
	#  - which materials exist in a certain inventory
	#  - compare two or more materials
	pass

def Order(args):
	# TODO: Appropriate ordering functions
	#  - Place order (interactive?)
	#  - Set shipping destination
	#  - Change where to order from (only possible if order hasn't been processed)
	#  - Compare object prices between sites (if applicable)
	if not LoggedIn():
		print("E: You must log in to place orders.")
		return False

	pass




LoadSettings()

if __name__ == "__main__":
	if len(sys.argv) < 2:
		action = "help"
	else:
		action = sys.argv[1]
	
	if action == "help":		Help(sys.argv[2:])
	elif action == "fetch":		Fetch(sys.argv[2:])
	elif action == "login": 	Login(sys.argv[2:])
	elif action == "sites": 	Sites(sys.argv[2:])
	elif action == "materials": 	Materials(sys.argv[2:])
	elif action == "order": 	Order(sys.argv[2:])
	else:
		print("E: Unknown action. Try 'help'.")