# coding: utf-8

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from tests.functional import *

hook_body_modifyjob = """
import pbs
e = pbs.event()
j = e.job
select = "1:ncpus=1:mem=10m"
j.Resource_List['ncpus'] = None
j.Resource_List['select'] = pbs.select(select)
j.comment = "Modified this job"
"""

hook_body_node_res_unset = """
import pbs
e = pbs.event()
vnl = pbs.event().vnode_list
local_node = pbs.get_local_nodename()
vnl[local_node].resources_available["foo"] = None
"""


class TestHookUnsetRes(TestFunctional):

    def test_modifyjob_hook(self):
        """
        Unsetting ncpus, that is ['ncpus'] = None, in modifyjob hook
        """
        hook_name = "myhook"
        a = {'event': 'modifyjob', 'enabled': 'True'}
        rv = self.server.create_import_hook(
            hook_name, a, hook_body_modifyjob, overwrite=True)
        self.assertTrue(rv)
        self.server.manager(MGR_CMD_SET, SERVER, {'log_events': 2047})
        j = Job(TEST_USER, attrs={
                'Resource_List.select': '1:ncpus=1', ATTR_h: None})
        jid = self.server.submit(j)
        self.server.expect(JOB, {'job_state': 'H'}, id=jid)
        self.server.alterjob(jid, {'Resource_List.ncpus': '2'})

    def test_node_res_unset_hook(self):
        """
        Unsetting custom node resource via hook and test
        the resource can be set again on the node.
        """
        a = {'type': 'string', 'flag': 'h'}
        r = 'foo'
        self.server.manager(MGR_CMD_CREATE, RSC, a, id=r)

        vnode = self.mom.shortname
        self.server.manager(
            MGR_CMD_SET, NODE,
            {'resources_available.foo': 'bar'},
            id=vnode,
            runas=ROOT_USER)

        hook_name = "node_res_unset"
        a = {'event': 'exechost_periodic',
             'enabled': 'True',
             'freq': 10}
        rv = self.server.create_import_hook(
            hook_name, a, hook_body_node_res_unset, overwrite=True)
        self.assertTrue(rv)

        msg = 'resource resources_available.foo= per mom hook request'
        self.server.log_match(msg, starttime=time.time())

        rc = self.server.manager(
            MGR_CMD_SET, NODE,
            {'resources_available.foo': 'bar'},
            id=vnode,
            runas=ROOT_USER)
        self.assertEqual(rc, 0)