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# Author: Neil Soman neil@eucalyptus.com
#         Mitch Garnaat mgarnaat@eucalyptus.com


import euca2ools.commands.eucacommand
from boto.roboto.param import Param

class Register(euca2ools.commands.eucacommand.EucaCommand):

    Description = 'Registers a manifest for use with the cloud.'
    Options = [Param(name='block_device_mapping',
                     short_name='b', long_name='block-device-mapping',
                     optional=True, ptype='string', cardinality='*',
                     doc="""Block device mapping for the instance(s).
                     Option may be used multiple times."""),
               Param(name='description',
                     short_name='d', long_name='description',
                     optional=True, ptype='string',
                     doc='Description of the image.'),
               Param(name='name', short_name='n', long_name='name',
                     optional=True, ptype='string',
                     doc='Name of the image.'),
               Param(name='architecture',
                     short_name='a', long_name='architecture',
                     optional=True, ptype='string', default='i386',
                     choices=['i386', 'x86_64'],
                     doc='The architecture of the image.'),
               Param(name='kernel', long_name='kernel',
                     optional=True, ptype='string',
                     doc='The ID of the kernel associated with the image.'),
               Param(name='ramdisk', long_name='ramdisk',
                     optional=True, ptype='string',
                     doc='The ID of the ramdisk associated with the image.'),
               Param(name='root_device_name', long_name='root-device-name',
                     optional=True, ptype='string',
                     doc='The root device name (e.g., /dev/sda1, or xvda).'),
               Param(name='snapshot', short_name='s', long_name='snapshot',
                     optional=True, ptype='string',
                     doc='The snapshot ID to use as the root device.')]
    Args = [Param(name='image_location',
                  optional=True, ptype='string',
                  doc="""Path to the uploaded image (bucket/manifest).
                         Required if registering an S3-based image""")]
               
    def main(self):
        if self.snapshot:
            if not self.root_device_name:
                self.root_device_name = '/dev/sda1'
            self.block_device_mapping.append('%s=%s' % (self.root_device_name,
                                                    self.snapshot))
        if self.block_device_mapping:
            self.block_device_mapping = self.parse_block_device_args(self.block_device_mapping)
        conn = self.make_connection_cli()
        return self.make_request_cli(conn, 'register_image',
                                     name=self.name,
                                     description=self.description,
                                     image_location=self.image_location,
                                     architecture=self.architecture,
                                     kernel_id=self.kernel,
                                     ramdisk_id=self.ramdisk,
                                     root_device_name=self.root_device_name,
                                     block_device_map=self.block_device_mapping)

    def main_cli(self):
        image_id = self.main()
        if image_id:
            print 'IMAGE\t%s' % image_id