# Copyright 2018, Yannig Perre
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
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# 2. 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.
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# may be used to endorse or promote products derived from this software without
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# !mitogen: minify_safe

import logging

import mitogen.core
import mitogen.parent


LOG = logging.getLogger(__name__)


class Stream(mitogen.parent.Stream):
    child_is_immediate_subprocess = True

    pod = None
    kubectl_path = 'kubectl'
    kubectl_args = None

    # TODO: better way of capturing errors such as "No such container."
    create_child_args = {
        'merge_stdio': True
    }

    def construct(self, pod, kubectl_path=None, kubectl_args=None, **kwargs):
        super(Stream, self).construct(**kwargs)
        assert pod
        self.pod = pod
        if kubectl_path:
            self.kubectl_path = kubectl_path
        self.kubectl_args = kubectl_args or []

    def _get_name(self):
        return u'kubectl.%s%s' % (self.pod, self.kubectl_args)

    def get_boot_command(self):
        bits = [self.kubectl_path] + self.kubectl_args + ['exec', '-it', self.pod]
        return bits + ["--"] + super(Stream, self).get_boot_command()