#!/usr/bin/env python

# Recipe creation tool
#
# Copyright (C) 2014 Intel Corporation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import sys
import os
import argparse
import glob
import logging

scripts_path = os.path.dirname(os.path.realpath(__file__))
lib_path = scripts_path + '/lib'
sys.path = sys.path + [lib_path]
import scriptutils
import argparse_oe
logger = scriptutils.logger_create('recipetool')

plugins = []

def tinfoil_init(parserecipes):
    import bb.tinfoil
    import logging
    tinfoil = bb.tinfoil.Tinfoil(tracking=True)
    tinfoil.prepare(not parserecipes)
    tinfoil.logger.setLevel(logger.getEffectiveLevel())
    return tinfoil

def main():

    if not os.environ.get('BUILDDIR', ''):
        logger.error("This script can only be run after initialising the build environment (e.g. by using oe-init-build-env)")
        sys.exit(1)

    parser = argparse_oe.ArgumentParser(description="OpenEmbedded recipe tool",
                                        add_help=False,
                                        epilog="Use %(prog)s <subcommand> --help to get help on a specific command")
    parser.add_argument('-d', '--debug', help='Enable debug output', action='store_true')
    parser.add_argument('-q', '--quiet', help='Print only errors', action='store_true')
    parser.add_argument('--color', choices=['auto', 'always', 'never'], default='auto', help='Colorize output (where %(metavar)s is %(choices)s)', metavar='COLOR')

    global_args, unparsed_args = parser.parse_known_args()

    # Help is added here rather than via add_help=True, as we don't want it to
    # be handled by parse_known_args()
    parser.add_argument('-h', '--help', action='help', default=argparse.SUPPRESS,
                        help='show this help message and exit')
    subparsers = parser.add_subparsers(title='subcommands', metavar='<subcommand>')

    if global_args.debug:
        logger.setLevel(logging.DEBUG)
    elif global_args.quiet:
        logger.setLevel(logging.ERROR)

    import scriptpath
    bitbakepath = scriptpath.add_bitbake_lib_path()
    if not bitbakepath:
        logger.error("Unable to find bitbake by searching parent directory of this script or PATH")
        sys.exit(1)
    logger.debug('Found bitbake path: %s' % bitbakepath)

    scriptutils.logger_setup_color(logger, global_args.color)

    tinfoil = tinfoil_init(False)
    for path in ([scripts_path] +
                 tinfoil.config_data.getVar('BBPATH', True).split(':')):
        pluginpath = os.path.join(path, 'lib', 'recipetool')
        scriptutils.load_plugins(logger, plugins, pluginpath)

    registered = False
    for plugin in plugins:
        if hasattr(plugin, 'register_commands'):
            registered = True
            plugin.register_commands(subparsers)
        elif hasattr(plugin, 'register_command'):
            # Legacy function name
            registered = True
            plugin.register_command(subparsers)
        if hasattr(plugin, 'tinfoil_init'):
            plugin.tinfoil_init(tinfoil)

    if not registered:
        logger.error("No commands registered - missing plugins?")
        sys.exit(1)

    args = parser.parse_args(unparsed_args, namespace=global_args)

    try:
        if getattr(args, 'parserecipes', False):
            tinfoil.config_data.disableTracking()
            tinfoil.parseRecipes()
            tinfoil.config_data.enableTracking()
        ret = args.func(args)
    except bb.BBHandledException:
        ret = 1

    return ret


if __name__ == "__main__":
    try:
        ret = main()
    except Exception:
        ret = 1
        import traceback
        traceback.print_exc()
    sys.exit(ret)