# Software License Agreement (BSD License)
#
# Copyright (c) 2009-2013, Eucalyptus Systems, Inc.
# All rights reserved.
#
# Redistribution and use of this software in source and binary forms, with or
# without modification, are permitted provided that the following conditions
# are met:
#
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#   copyright notice, this list of conditions and the
#   following disclaimer.
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#   Redistributions in binary form must reproduce the above
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from euca2ools.commands.bundle.helpers import download_files
from euca2ools.commands.bundle.helpers import get_manifest_keys
from euca2ools.commands.bundle.helpers import get_manifest_parts
from euca2ools.commands.walrus import WalrusRequest
from euca2ools.commands.walrus.checkbucket import CheckBucket
from euca2ools.commands.walrus.deletebucket import DeleteBucket
from euca2ools.commands.walrus.deleteobject import DeleteObject
from euca2ools.exceptions import AWSError
from requestbuilder import Arg, MutuallyExclusiveArgList
from requestbuilder.exceptions import ArgumentError
import argparse
import os
import shutil
import sys
import tempfile
import time


class DeleteBundle(WalrusRequest):
    DESCRIPTION = 'Delete a previously-uploaded bundle'
    ARGS = [Arg('-b', '--bucket', dest='bucket', metavar='BUCKET[/PREFIX]',
                required=True,
                help='location of the bundle to delete (required)'),
            MutuallyExclusiveArgList(True,
                Arg('-m', '--manifest', dest='manifest_path',
                    metavar='MANIFEST', help='''use a local manifest file to
                    figure out what to delete'''),
                Arg('-p', '--prefix', dest='prefix',
                    help='''delete the bundle that begins with a specific
                    prefix (e.g. "fry" for "fry.manifest.xml")'''),
                Arg('--delete-all-bundles', dest='delete_all',
                    action='store_true', help=argparse.SUPPRESS)),
            Arg('--clear', dest='clear', action='store_true',
                help='attempt to delete the bucket as well')]

    def _delete_manifest_parts(self, manifest_keys, directory):
        bucket = self.args.get('bucket')
        for key in manifest_keys:
            paths = get_manifest_parts(os.path.join(directory, key), bucket)
            DeleteObject(paths=paths, service=self.service,
                         config=self.config).main()

    def _delete_manifest_keys(self, manifest_keys):
        bucket = self.args.get('bucket')
        paths = [os.path.join(bucket, key) for key in manifest_keys]
        DeleteObject(paths=paths, service=self.service,
                     config=self.config).main()

    def _delete_by_local_manifest(self):
        manifest_path = self.args.get('manifest_path')
        if not os.path.isfile(manifest_path):
            raise ArgumentError(
                "manifest file '{0}' does not exist.".format(manifest_path))
        manifest_keys = [os.path.basename(manifest_path)]
        directory = os.path.dirname(manifest_path) or '.'
        # When we use a local manifest file, we should still check if there is
        # a matching manifest in the bucket. If it's there then we delete it.
        # It's okay if this fails. It might not be there.
        try:
            self._delete_manifest_keys(manifest_keys)
        except AWSError as err:
            if err.code == 'NoSuchEntity':
                pass
            else:
                raise
        self._delete_manifest_parts(manifest_keys, directory)

    def _delete_by_prefix(self):
        bucket = self.args.get('bucket')
        directory = tempfile.mkdtemp()
        try:
            manifest_keys = ["{0}.manifest.xml".format(
                             self.args.get('prefix'))]
            try:
                download_files(bucket, manifest_keys, directory,
                               service=self.service, config=self.config)
            except AWSError as err:
                if err.code == 'NoSuchEntity':
                    error = ("manifest file '{0}' does not exist in bucket "
                             "'{1}'.")
                    raise ArgumentError(error.format(manifest_keys[0],
                                                     bucket))
                else:
                    raise
            self._delete_manifest_parts(manifest_keys, directory)
            self._delete_manifest_keys(manifest_keys)
        finally:
            shutil.rmtree(directory)

    def _delete_all_bundles(self):
        bucket = self.args.get('bucket')
        msg = ("All bundles in bucket '{0}' will be deleted!  If this is not "
               "what you want, press Ctrl+C in the next 10 seconds".format(
               bucket))
        print >> sys.stderr, msg
        try:
            for __ in range(10):
                sys.stderr.write('.')
                sys.stderr.flush()
                time.sleep(1)
        except KeyboardInterrupt:
            print >> sys.stderr
            print >> sys.stderr, 'Bundle deletion canceled by user.'
            sys.exit(1)
        finally:
            sys.stderr.write('\n')
            sys.stderr.flush()

        directory = tempfile.mkdtemp()
        try:
            manifest_keys = get_manifest_keys(bucket, service=self.service,
                                              config=self.config)
            download_files(bucket, manifest_keys, directory,
                           service=self.service, config=self.config)
            self._delete_manifest_parts(manifest_keys, directory)
            self._delete_manifest_keys(manifest_keys)
        finally:
            shutil.rmtree(directory)

    def main(self):
        bucket = self.args.get('bucket').split('/', 1)[0]

        # Verify bucket existence
        CheckBucket(bucket=bucket, service=self.service,
                    config=self.config).main()

        # Use local manifest file
        if self.args.get('manifest_path'):
            self._delete_by_local_manifest()
        # Use manifest file in walrus
        elif self.args.get('prefix'):
            self._delete_by_prefix()
        # Delete all bundles in the bucket
        elif self.args.get('delete_all'):
            self._delete_all_bundles()

        if self.args.get('clear'):
            DeleteBucket(bucket=bucket, service=self.service,
                         config=self.config).main()

@@ -2075,20 +2075,8 @@
 ile%0A
-import time%0A
 %0A%0Acl
@@ -5495,612 +5495,8 @@
 t')%0A
-        msg = (%22All bundles in bucket '%7B0%7D' will be deleted!  If this is not %22%0A               %22what you want, press Ctrl+C in the next 10 seconds%22.format(%0A               bucket))%0A        print %3E%3E sys.stderr, msg%0A        try:%0A            for __ in range(10):%0A                sys.stderr.write('.')%0A                sys.stderr.flush()%0A                time.sleep(1)%0A        except KeyboardInterrupt:%0A            print %3E%3E sys.stderr%0A            print %3E%3E sys.stderr, 'Bundle deletion canceled by user.'%0A            sys.exit(1)%0A        finally:%0A            sys.stderr.write('%5Cn')%0A            sys.stderr.flush()%0A%0A
     

Kill off delete-bundle's NIFO mode's delay