#!/usr/bin/env python

import os
import optparse
import sys

sys.path.insert(0,os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

import wizard
from wizard import command

def main():
    usage = """usage: %prog COMMAND [ARGS]

Wizard is a Git-based autoinstall management system for scripts.

Its commands are:
    configure       Configures an autoinstall (database, etc) to work
    errors          Lists all broken autoinstall metadata
    info            Reports information about an autoinstall
    install         Installs an application
    list            Lists autoinstalls, with optional filtering
    massmigrate     Performs mass migration of autoinstalls of an application
    migrate         Migrate autoinstalls from old format to Git-based format
    summary         Generate statistics (see help for subcommands)
    upgrade         Upgrades an autoinstall to the latest version

See '%prog help COMMAND' for more information on a specific command."""

    parser = optparse.OptionParser(usage)
    parser.disable_interspersed_args()
    _, args = parser.parse_args() # no global options
    rest_argv = args[1:]
    baton = command.OptionBaton()
    baton.add("--versions-path", dest="versions_path",
        default=getenvpath("WIZARD_VERSIONS_PATH") or "/afs/athena.mit.edu/contrib/scripts/sec-tools/store/versions",
        help="Location of parallel-find output directory, or a file containing a newline separated list of 'all autoinstalls' (for development work).  Environment variable is WIZARD_VERSIONS_PATH.")
    baton.add("--srv-path", dest="srv_path",
        default=getenvpath("WIZARD_SRV_PATH") or "/afs/athena.mit.edu/contrib/scripts/git/autoinstalls",
        help="Location of autoinstall Git repositories, such that $REPO_PATH/$APP.git is a repository (for development work).  Environment variable is WIZARD_SRV_PATH.")
    try:
        command_name = args[0]
    except IndexError:
        parser.print_help()
        raise SystemExit(1)
    if command_name == "help":
        try:
            help_module = get_command(rest_argv[0])
        except ImportError:
            parser.error("invalid action")
        except IndexError:
            parser.print_help()
            raise SystemExit(1)
        help_module.main(['--help'], baton)
    # Dispatch commands
    try:
        command_module = get_command(command_name)
    except ImportError:
        parser.error("invalid action")
    command_module.main(rest_argv, baton)

def get_command(name):
    __import__("wizard.command." + name)
    return getattr(wizard.command, name)

def getenvpath(name):
    val = os.getenv(name)
    if val:
        val = os.path.abspath(val)
    return val

if __name__ == "__main__":
    main()