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#!/usr/bin/python 

# -*- coding: utf-8 -*- 

# Copyright: (c) 2021, XLAB Steampunk <steampunk@xlab.si> 

# 

# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) 

 

from __future__ import absolute_import, division, print_function 

 

__metaclass__ = type 

 

DOCUMENTATION = r""" 

module: change_request_task 

 

author: 

- Matej Pevec (@mysteriouswolf) 

- Manca Bizjak (@mancabizjak) 

- Miha Dolinar (@mdolin) 

- Tadej Borovsak (@tadeboro) 

 

short_description: Manage ServiceNow change request tasks 

 

description: 

- Create, delete or update a ServiceNow change request tasks. 

- For more information, refer to the ServiceNow change management documentation at 

U(https://docs.servicenow.com/bundle/paris-it-service-management/page/product/change-management/concept/c_ITILChangeManagement.html). 

version_added: 1.3.0 

extends_documentation_fragment: 

- servicenow.itsm.instance 

- servicenow.itsm.sys_id 

- servicenow.itsm.number 

- servicenow.itsm.change_request_task_mapping 

seealso: 

- module: servicenow.itsm.change_request_task_info 

 

options: 

configuration_item: 

description: 

- The configuration item (CI) or service name that the change task applies to. 

- Note that contrary to I(configuration_item_id), configuration item names may not uniquely identify a record. 

In case there are more configuration items with the same name, the module fails and does nothing. 

- Mutually exclusive with I(configuration_item_id). 

type: str 

configuration_item_id: 

description: 

- The configuration item (CI) or service ID that the change task applies to. 

- Mutually exclusive with I(configuration_item). 

type: str 

change_request_number: 

description: 

- I(number) of the change request this task belongs to. 

- Note that contrary to I(change_request_id), change request number may not uniquely identify a record. 

In case there are more change requests with the same number, the module fails and does nothing. 

- Mutually exclusive with I(change_request_id). 

type: str 

change_request_id: 

description: 

- I(sys_id) of the change request this task belongs to. 

- Mutually exclusive with I(change_request_number). 

type: str 

type: 

description: 

- The type of change task. 

- Default workflow generates tasks in I(type) C(review). 

- If the task I(type) is C(implementation), the I(planned_start_date) and I(planned_end_date) values 

must fall within the planned start and end dates specified in the I(change_request). 

choices: [ planning, implementation, testing, review ] 

type: str 

state: 

description: 

- The state of the change request task. 

- Cannot be changed to C(pending) when I(on_hold) is C(true) 

(module fails and does nothing). 

- Default choices are C(pending), C(open), C(in_progress), C(closed), C(canceled), C(absent). 

One can override them by setting I(change_request_task.state). 

type: str 

assigned_to: 

description: 

- The user that the change task is assigned to. 

type: str 

assignment_group: 

description: 

- The group that the change task is assigned to. 

type: str 

short_description: 

description: 

- A summary of the task. 

- This field has to be set either in the record or here. 

type: str 

description: 

description: 

- A detailed description of the task. 

- This field has to be set either in the record or here. 

type: str 

on_hold: 

description: 

- A change task cannot be put on hold when I(state) is C(pending), C(canceled), or C(closed) 

(module fails and does nothing). 

- Provide an On hold reason if a change task is placed on hold. 

type: bool 

hold_reason: 

description: 

- Reason why change task is on hold. 

- Required if change task's I(on_hold) value will be C(true). 

type: str 

planned_start_date: 

description: 

- The date you plan to begin working on the task. 

type: str 

planned_end_date: 

description: 

- The date the change task is planned to be completed. 

type: str 

close_code: 

description: 

- Provide information on how the change task was resolved. 

- The change task must have this parameter set prior to 

transitioning to the C(closed) state. 

choices: [ successful, successful_issues, unsuccessful ] 

type: str 

close_notes: 

description: 

- Resolution notes added by the user who closed the change task. 

- The change task must have this parameter set prior to 

transitioning to the C(closed) state. 

type: str 

other: 

description: 

- Optional remaining parameters. 

- For more information on optional parameters, refer to the ServiceNow 

change task documentation at 

U(https://docs.servicenow.com/bundle/paris-it-service-management/page/product/change-management/task/create-a-change-task.html). 

type: dict 

""" 

 

EXAMPLES = """ 

- name: Create a change task 

servicenow.itsm.change_request_task: 

configuration_item: Rogue Squadron Launcher 

change_request_number: CHG0000001 

type: planning 

state: open 

assigned_to: fred.luddy 

assignment_group: robot.embedded 

short_description: Implement collision avoidance 

description: "Implement collision avoidance based on the newly installed TOF sensor arrays." 

on_hold: true 

hold_reason: "Waiting for a report from the hardware team" 

planned_start_date: 2021-07-15 08:00:00 

planned_end_date: 2021-07-21 16:00:00 

other: 

approval: approved 

 

- name: Change state of the change task 

servicenow.itsm.change_request_task: 

state: in_progress 

on_hold: false 

number: CTASK0000001 

 

- name: Close a change task 

servicenow.itsm.change_request_task: 

state: closed 

close_code: "successful" 

close_notes: "Closed" 

number: CTASK0000001 

 

- name: Delete a change task 

servicenow.itsm.change_request_task: 

state: absent 

number: CTASK0000001 

""" 

 

from ansible.module_utils.basic import AnsibleModule 

 

from ..module_utils import arguments, client, errors, table, utils, validation 

from ..module_utils.change_request_task import PAYLOAD_FIELDS_MAPPING 

from ..module_utils.utils import get_mapper 

 

DIRECT_PAYLOAD_FIELDS = ( 

"state", 

"short_description", 

"description", 

"on_hold", 

"planned_start_date", 

"planned_end_date", 

"close_code", 

"close_notes", 

) 

 

 

def ensure_absent(module, table_client): 

mapper = get_mapper(module, "change_request_task_mapping", PAYLOAD_FIELDS_MAPPING) 

query = utils.filter_dict(module.params, "sys_id", "number") 

task = table_client.get_record("change_task", query) 

 

if task: 

table_client.delete_record("change_task", task, module.check_mode) 

return True, None, dict(before=mapper.to_ansible(task), after=None) 

 

return False, None, dict(before=None, after=None) 

 

 

def validate_params(params, change_task=None): 

missing = [] 

if params["state"] == "closed": 

missing.extend( 

validation.missing_from_params_and_remote( 

("close_code", "close_notes"), params, change_task 

) 

) 

 

# Description must be set 

missing.extend( 

validation.missing_from_params_and_remote( 

("short_description", "description"), params, change_task 

) 

) 

 

if missing: 

raise errors.ServiceNowError( 

"Missing required parameters {0}".format(", ".join(missing)) 

) 

 

 

def ensure_present(module, table_client): 

mapper = get_mapper(module, "change_request_task_mapping", PAYLOAD_FIELDS_MAPPING) 

query = utils.filter_dict(module.params, "sys_id", "number") 

payload = build_payload(module, table_client) 

 

if not query: 

# User did not specify an existing change task, so we need to create a new one. 

validate_params(module.params) 

new = mapper.to_ansible( 

table_client.create_record( 

"change_task", mapper.to_snow(payload), module.check_mode 

) 

) 

return True, new, dict(before=None, after=new) 

 

old = mapper.to_ansible( 

table_client.get_record("change_task", query, must_exist=True) 

) 

if is_superset_with_date(old, payload): 

# No change in parameters we are interested in - nothing to do. 

return False, old, dict(before=old, after=old) 

 

validate_params(module.params, old) 

new = mapper.to_ansible( 

table_client.update_record( 

"change_task", 

mapper.to_snow(old), 

mapper.to_snow(payload), 

module.check_mode, 

) 

) 

return True, new, dict(before=old, after=new) 

 

 

def is_superset_with_date(superset, candidate): 

datetime_fields = ("planned_start_date", "planned_end_date") 

 

for k in datetime_fields: 

if k in candidate and (superset.get(k, "") or "").replace("T", " ") != ( 

candidate[k] or "" 

).replace("T", " "): 

return False 

 

return utils.is_superset( 

superset, dict((k, v) for k, v in candidate.items() if k not in datetime_fields) 

) 

 

 

def build_payload(module, table_client): 

payload = (module.params["other"] or {}).copy() 

payload.update(utils.filter_dict(module.params, *DIRECT_PAYLOAD_FIELDS)) 

 

if module.params["type"]: 

payload["change_task_type"] = module.params["type"] 

 

if module.params["hold_reason"]: 

payload["on_hold_reason"] = module.params["hold_reason"] 

 

# Map the configuration item 

if module.params["configuration_item"]: 

configuration_item = table.find_configuration_item( 

table_client, module.params["configuration_item"] 

) 

payload["cmdb_ci"] = configuration_item["sys_id"] 

 

if module.params["configuration_item_id"]: 

payload["cmdb_ci"] = module.params["configuration_item_id"] 

 

# Map the change request 

if module.params["change_request_number"]: 

configuration_item = table.find_change_request( 

table_client, module.params["change_request_number"] 

) 

payload["change_request"] = configuration_item["sys_id"] 

 

if module.params["change_request_id"]: 

payload["change_request"] = module.params["change_request_id"] 

 

# Map the assignee 

if module.params["assigned_to"]: 

user = table.find_user(table_client, module.params["assigned_to"]) 

payload["assigned_to"] = user["sys_id"] 

 

# Map the assigned group 

if module.params["assignment_group"]: 

assignment_group = table.find_assignment_group( 

table_client, module.params["assignment_group"] 

) 

payload["assignment_group"] = assignment_group["sys_id"] 

 

return payload 

 

 

def run(module, table_client): 

if module.params["state"] == "absent": 

return ensure_absent(module, table_client) 

return ensure_present(module, table_client) 

 

 

def main(): 

module_args = dict( 

arguments.get_spec( 

"instance", "sys_id", "number", "change_request_task_mapping" 

), 

configuration_item=dict( 

type="str", 

), 

configuration_item_id=dict( 

type="str", 

), 

change_request_id=dict( 

type="str", 

), 

change_request_number=dict( 

type="str", 

), 

type=dict( 

type="str", 

choices=[ 

"planning", 

"implementation", 

"testing", 

"testing", 

], 

), 

state=dict( 

type="str", 

), 

assigned_to=dict( 

type="str", 

), 

assignment_group=dict( 

type="str", 

), 

short_description=dict( 

type="str", 

), 

description=dict( 

type="str", 

), 

on_hold=dict( 

type="bool", 

), 

hold_reason=dict( 

type="str", 

), 

planned_start_date=dict( 

type="str", 

), 

planned_end_date=dict( 

type="str", 

), 

close_code=dict( 

type="str", 

choices=[ 

"successful", 

"successful_issues", 

"unsuccessful", 

], 

), 

close_notes=dict( 

type="str", 

), 

other=dict( 

type="dict", 

), 

) 

 

module = AnsibleModule( 

argument_spec=module_args, 

supports_check_mode=True, 

required_if=[ 

("state", "absent", ("sys_id", "number"), True), 

("on_hold", True, ("hold_reason",)), 

], 

mutually_exclusive=[ 

("change_request_id", "change_request_number"), 

("configuration_item_id", "configuration_item"), 

], 

) 

 

try: 

snow_client = client.Client(**module.params["instance"]) 

table_client = table.TableClient(snow_client) 

changed, record, diff = run(module, table_client) 

module.exit_json(changed=changed, record=record, diff=diff) 

except errors.ServiceNowError as e: 

module.fail_json(msg=str(e)) 

 

 

if __name__ == "__main__": 

main()