#!/usr/bin/env python
# Copyright (c) 2009, Google Inc. All rights reserved.
# Copyright (c) 2009 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# 
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# A tool for automating dealing with bugzilla, posting patches, committing patches, etc.

import os

from modules.bugzilla import Bugzilla
from modules.buildbot import BuildBot
from modules.buildsteps import BuildSteps
from modules.commands.download import *
from modules.commands.early_warning_system import *
from modules.commands.queries import *
from modules.commands.queues import *
from modules.commands.upload import *
from modules.executive import Executive
from modules.logging import log
from modules.multicommandtool import MultiCommandTool
from modules.scm import detect_scm_system

class BugzillaTool(MultiCommandTool):
    def __init__(self):
        MultiCommandTool.__init__(self)
        self.global_option_parser.add_option("--dry-run", action="callback", help="do not touch remote servers", callback=self.dry_run_callback)

        self.bugs = Bugzilla()
        self.buildbot = BuildBot()
        self.executive = Executive()
        self._scm = None
        self._status = None
        self.steps = BuildSteps()

    def dry_run_callback(self, option, opt, value, parser):
        self.scm().dryrun = True
        self.bugs.dryrun = True

    def scm(self):
        # Lazily initialize SCM to not error-out before command line parsing (or when running non-scm commands).
        original_cwd = os.path.abspath(".")
        if not self._scm:
            self._scm = detect_scm_system(original_cwd)

        if not self._scm:
            script_directory = os.path.abspath(sys.path[0])
            webkit_directory = os.path.abspath(os.path.join(script_directory, "../.."))
            self._scm = detect_scm_system(webkit_directory)
            if self._scm:
                log("The current directory (%s) is not a WebKit checkout, using %s" % (original_cwd, webkit_directory))
            else:
                error("FATAL: Failed to determine the SCM system for either %s or %s" % (original_cwd, webkit_directory))

        return self._scm

    def status(self):
        if not self._status:
            self._status = StatusBot()
        return self._status

    def path(self):
        return __file__

    def should_show_in_main_help(self, command):
        if not command.show_in_main_help:
            return False
        if command.requires_local_commits:
            return self.scm().supports_local_commits()
        return True

    def should_execute_command(self, command):
        if command.requires_local_commits and not self.scm().supports_local_commits():
            failure_reason = "%s requires local commits using %s in %s." % (command.name, self.scm().display_name(), self.scm().checkout_root)
            return (False, failure_reason)
        return (True, None)


if __name__ == "__main__":
    BugzillaTool().main()