---
#
# Copyright (c) 2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# SUB-TASKS DESCRIPTION:
#   Validate addresses in provided range and the range size
#

- set_fact:
    network: "{{ item.key }}"
    start_addr: "{{ item.value['start'] }}"
    end_addr: "{{ item.value['end'] }}"
    subnet: "{{ item.value['subnet'] }}"
    use_default: "{{ item.value['use_default'] }}"

- block:
  - name: Validate {{ network }} start and end address format
    debug:
      msg: "{{ network }}: {{ start_addr }} {{ end_addr }}"
    failed_when: (start_addr | ipaddr == False) or (end_addr | ipaddr == False)

  - block:
    - name: Validate {{ network }} start and end range
      vars:
        script_content: |
          from netaddr import IPAddress
          from netaddr import IPNetwork
          from netaddr import IPRange

          start = IPAddress("{{ start_addr }}")
          end = IPAddress("{{ end_addr }}")
          subnet = IPNetwork("{{ subnet }}")

          if not start < end:
            raise Exception("Failed validation, {{ network }} start address must be less than end address.")

          if start not in subnet or end not in subnet:
            raise Exception("Failed validation, {{ network }} start or end address must be within its subnet range.")

          range = IPRange("{{ start_addr }}", "{{ end_addr }}")
          if (("{{ network }}" == 'cluster_pod' or "{{ network }}" == 'cluster_service') and
              range.size < {{ min_pod_service_num_addresses|int }}):
            raise Exception("Failed validation, {{ network }} address range must contain at least %d addresses." %
                            int("{{ min_pod_service_num_addresses }}"))
          elif (("{{ network }}" == 'pxeboot' or "{{ network }}" == 'multicast' or "{{ network }}" == 'management') and
                range.size < {{ min_16_addresses|int }}):
            raise Exception("Failed validation, {{ network }} address range must contain at least %d addresses." %
                            int("{{ min_16_addresses }}"))
          elif range.size < {{ min_8_addresses|int }}:
            raise Exception("Failed validation, {{ network }} address range must contain at least %d addresses." %
                            int("{{ min_8_addresses }}"))
      shell: "{{ script_content }}"
      args:
        executable: /usr/bin/python
      failed_when: false
      register: range_check_result

    - name: Fail if address range did not meet required criteria
      fail:
        msg: "{{ range_check_result.stderr_lines[-1] }}"
      when: range_check_result.rc != 0

    when: network != 'oam_node'
  when: not use_default