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# Copyright (C) 2016 Intel Corporation
# Released under the MIT license (see COPYING.MIT)

import os

from oeqa.core.context import OETestContext, OETestContextExecutor
from oeqa.core.target.ssh import OESSHTarget
from oeqa.utils.dump import HostDumper

from oeqa.runtime.loader import OERuntimeTestLoader

class OERuntimeTestContext(OETestContext):
    loaderClass = OERuntimeTestLoader
    runtime_files_dir = os.path.join(
                        os.path.dirname(os.path.abspath(__file__)), "files")

    def __init__(self, td, logger, target, host_dumper, image_packages):
        super(OERuntimeTestContext, self).__init__(td, logger)
        self.target = target
        self.image_packages = image_packages
        self.host_dumper = host_dumper
        self._set_target_cmds()

    def _set_target_cmds(self):
        self.target_cmds = {}

        self.target_cmds['ps'] = 'ps'
        if 'procps' in self.image_packages:
            self.target_cmds['ps'] = self.target_cmds['ps'] + ' -ef'

class OERuntimeTestContextExecutor(OETestContextExecutor):
    _context_class = OERuntimeTestContext

    name = 'runtime'
    help = 'runtime test component'
    description = 'executes runtime tests over targets'

    default_cases = os.path.join(os.path.abspath(os.path.dirname(__file__)),
            'cases')
    default_data = None

    default_target_type = 'simpleremote'
    default_server_ip = '192.168.7.1'
    default_target_ip = '192.168.7.2'
    default_host_dumper_dir = '/tmp/oe-saved-tests'

    def register_commands(self, logger, subparsers):
        super(OERuntimeTestContextExecutor, self).register_commands(logger, subparsers)

        runtime_group = self.parser.add_argument_group('runtime options')

        runtime_group.add_argument('--target-type', action='store',
                default=self.default_target_type, choices=['simpleremote', 'qemu'],
                help="Target type of device under test, default: %s" \
                % self.default_target_type)
        runtime_group.add_argument('--target-ip', action='store',
                default=self.default_target_ip,
                help="IP address of device under test, default: %s" \
                % self.default_target_ip)
        runtime_group.add_argument('--server-ip', action='store',
                default=self.default_target_ip,
                help="IP address of device under test, default: %s" \
                % self.default_server_ip)

        runtime_group.add_argument('--host-dumper-dir', action='store',
                default=self.default_host_dumper_dir,
                help="Directory where host status is dumped, if tests fails, default: %s" \
                % self.default_host_dumper_dir)

        runtime_group.add_argument('--packages-manifest', action='store',
                help="Package manifest of the image under test")


    @staticmethod
    def getTarget(target_type, target_ip, server_ip):
        target = None

        if target_type == 'simpleremote':
            target = OESSHTarget(target_ip)
        elif target_type == 'qemu':
            raise NotImplementedError("target_type %s isn't implemented yet" % \
                    target_type)
        else:
            raise TypeError("target_type %s isn't supported" % target_type)

        return target

    @staticmethod
    def readPackagesManifest(manifest):
        if not os.path.exists(manifest):
            raise OSError("Manifest file not exists: %s" % manifest)

        image_packages = set()
        with open(manifest, 'r') as f:
            for line in f.readlines():
                line = line.strip()
                if line and not line.startswith("#"):
                    image_packages.add(line.split()[0])

        return image_packages

    @staticmethod
    def getHostDumper(cmds, directory):
        return HostDumper(cmds, directory)

    def _process_args(self, logger, args):
        if not args.packages_manifest:
            raise TypeError('Manifest file not provided')

        super(OERuntimeTestContextExecutor, self)._process_args(logger, args)

        self.tc_kwargs['init']['target'] = \
                OERuntimeTestContextExecutor.getTarget(args.target_type)
        self.tc_kwargs['init']['host_dumper'] = \
                OERuntimeTestContextExecutor.getHostDumper(None,
                        args.host_dumper_dir)
        self.tc_kwargs['init']['image_packages'] = \
                OERuntimeTestContextExecutor.readPackagesManifest(
                        args.packages_manifest)

_executor_class = OERuntimeTestContextExecutor