#!/usr/bin/env python
#coding=utf8

'''
CloudControl CLI Binary
'''

import os, os.path
import sys
import optparse
import ConfigParser
import pprint
import re
import warnings
from xdg import BaseDirectory

import cccli
from cccli.cli import Cli
from cccli.printer import Printer
from cccli.exception import *

settings = {
    "port": "1984",
    "timeout": "30",
    "hsize": "100",
    "alias": "%s/alias"%BaseDirectory.save_config_path(cccli.canonical_name),
    "history": "%s/history"%BaseDirectory.save_data_path(cccli.canonical_name),
    "expert": "%s/expert"%BaseDirectory.save_data_path(cccli.canonical_name),
    }

try:
    # Early debug loading
    if "CC_DEBUG" in os.environ:
        cccli.debug = True
        settings["debug"] = "True"

    # load a printer
    printer = Printer()

    # Parse line argument
    oparser = optparse.OptionParser(usage="usage: %prog [options] [commands]",
                                    version=cccli.version)
    oparser.add_option("-d", "--debug", action="store_true",dest="debug",
                       help="Debug mode")
    oparser.add_option("-D", "--no-debug", action="store_false",dest="debug",
                       help="Unset debug mode")
    oparser.add_option("-L", "--login",action="store",dest="login",
                       help="Server login")
    oparser.add_option("-H", "--hostname",action="store",dest="server",
                       help="Server hostname")
    oparser.add_option("-P", "--port",action="store",dest="port",
                       help="Server port")
    oparser.add_option("-t", "--timeout",action="store",dest="timeout",
                       help="Connection timeout")
    oparser.add_option("-p", "--profile",action="store",dest="profile",
                       help="Profile name")
    oparser.add_option("-l", "--list-profile", action="store_true",dest="proflist",
                       help="List available profile")
    oparser.add_option("--history-file",action="store",dest="history",
                       help="History file")
    oparser.add_option("--history-size",action="store",dest="hsize",
                       help="History max entry count")
    (options, args) = oparser.parse_args()

    # try loading profiles
    try:
        # parse profile file
        propath = "%s/profile"%BaseDirectory.save_config_path(cccli.canonical_name)
        fparser = ConfigParser.RawConfigParser()
        fparser.read(propath)
        # profile listing
        if options.proflist:
            l = list(fparser.sections())
            l.remove("cli")
            printer.out(os.linesep.join(l))
            sys.exit(0)
        # load default profile
        if fparser.has_section("cli"):
            settings.update(fparser.items("cli"))
        # choose next profile to load
        if options.profile:
            settings["profile"] = options.profile
        elif "CC_PROFILE" in os.environ:
            settings["profile"] = os.environ["CC_PROFILE"]
        # load next profile
        if fparser.has_section(settings["profile"]):
            settings.update(fparser.items(settings["profile"]))
        else:
            printer.warn("Unable to load profile %s"%settings["profile"])
    except Exception as e:
        if cccli.debug:
            raise
        pass

    # Load environment variables
    if "CC_SERVER" in os.environ:
        settings["server"] = os.environ["CC_SERVER"]
    if "CC_PORT" in os.environ:
        settings["port"] = os.environ["CC_PORT"]
    if "CC_LOGIN" in os.environ:
        settings["login"] = os.environ["CC_LOGIN"]
    if "CC_PASS" in os.environ:
        settings["pass"] = os.environ["CC_PASS"]

    # Load command line options
    for i in [ x.dest for x in oparser.option_list if x.dest ]:
        if hasattr(options, i):
            o = getattr(options, i)
            if o is not None:
                settings[i] = o

    # debug stuff
    if "debug" in settings:
        cccli.debug = bool(settings["debug"])
    else:
        warnings.filterwarnings("ignore")
    printer.debug("Debugging on")

    # checking server name
    if "server" not in settings:
        raise BadArgument("No server address")

    # check int values
    for i in "port", "timeout", "hsize":
        try:
            settings[i] = int(settings[i])
        except:
            raise BadArgument("Invalid %s number"%i)
    # check login
    if "login" not in settings:
        printer.set_interactive()
        settings["login"] = printer.ask("Login: ")

    # check password
    if "pass" not in settings:
        printer.set_interactive()
        settings["pass"] = printer.getpass("Password: ")

    # print settings
    printer.debug("Settings: %s"%settings)

    # start cli
    cli = Cli(settings)
    cli.start(" ".join(args))
except BadArgument as e:
    printer.error("Bad Argument: %s"%str(e))
    oparser.print_help()
except KeyboardInterrupt:
    exit(1)
except cliError as e:
    printer.error("%s: %s"%(type(e), str(e)))
except Exception as e:
    if cccli.debug:
        if "printer" in locals():
            printer.fatal("%s: %s"%(type(e), str(e)), quit=False)
        raise
    printer.warn("This is a not expected error, please report it!")
    printer.fatal(str(e))