# Copyright 2020 Dell Inc. or its subsidiaries. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# limitations under the License.
---

- name: Check if file is comma seperated
  shell: awk -F\, '{print NF-1}' {{ path_for_mapping_file }}
  register: comma_seperated
  changed_when: false
  tags: install

- name: Fail if not comma seperated
  fail:
    msg: "{{ not_comma_seperated }}"
  when: item != "2"
  with_items: "{{ comma_seperated.stdout_lines }}"
  tags: install

- name: Remove blank lines
  shell:  awk -F, 'length>NF+1' {{ path_for_mapping_file }} > {{ role_path }}/files/new_mapping_file.csv
  changed_when: false
  tags: install

- name: Remove blank spaces
  shell:  sed -i.bak -E 's/(^|,)[[:blank:]]+/\1/g; s/[[:blank:]]+(,|$)/\1/g'  {{ role_path }}/files/new_mapping_file.csv
  args:
    warn: no
  changed_when: false
  tags: install

- name: Check if header present
  shell:  awk 'NR==1 { print $1}' {{ role_path }}/files/new_mapping_file.csv
  register: header
  changed_when: false
  tags: install

- name: Fail if header not present
  fail:
    msg: "{{ header_fail }}"
  when: header.stdout !=  valid_header

- name: Count the hostname
  shell: awk -F',' '{print $2}' {{ role_path }}/files/new_mapping_file.csv | wc -l
  register: total_hostname
  changed_when: false
  tags: install

- name: Count the ip
  shell: awk -F',' '{print $3}' {{ role_path }}/files/new_mapping_file.csv | wc -l
  register: total_ip
  changed_when: false
  tags: install

- name: Count the macs
  shell: awk -F',' '{print $1}' {{ role_path }}/files/new_mapping_file.csv | wc -l
  register: total_mac
  changed_when: false
  tags: install

- name: Check for duplicate hostname
  shell: awk -F',' '{print $2}' {{ role_path }}/files/new_mapping_file.csv | uniq | wc -l
  register: uniq_hostname
  changed_when: false
  tags: install

- name: Check for duplicate ip
  shell: awk -F',' '{print $3}' {{ role_path }}/files/new_mapping_file.csv | uniq | wc -l
  register: uniq_ip
  changed_when: false
  tags: install

- name: Check for duplicate mac
  shell: awk -F',' '{print $1}' {{ role_path }}/files/new_mapping_file.csv | uniq | wc -l
  register: uniq_mac
  changed_when: false
  tags: install

- name: Fail if duplicate hosts exist
  fail:
    msg: "{{ fail_hostname_duplicate }}"
  when:  total_hostname.stdout >  uniq_hostname.stdout
  tags: install

- name: Fail if duplicate ips exist
  fail:
    msg: "{{ fail_ip_duplicate }}"
  when:  total_ip.stdout >  uniq_ip.stdout
  tags: install

- name: Fail if duplicate mac exist
  fail:
    msg: "{{ fail_mac_duplicate }}"
  when:  total_mac.stdout >  uniq_mac.stdout
  tags: install

- name: Check if _ or . or space present in hostname
  shell: awk -F',' '{print $2}' {{ role_path }}/files/new_mapping_file.csv |grep -E -- '_|\.| '
  register: hostname_result
  ignore_errors: true
  changed_when: false
  tags: install

- name: Fail if  _ or . or space present in hostname
  fail:
    msg: "{{ hostname_result.stdout + ' :Hostname should not contain _ or . as it will cause error with slurm and K8s'}}"
  when: hostname_result.stdout != ""
  tags: install

- name: Compare the file for new nodes
  block:
  - name: difference
    shell: diff {{ role_path }}/files/new_mapping_file.csv {{role_path}}/files/backup_mapping_file.csv| tr -d \>|tr -d \<| grep -E -- ', & :| '
    register: diff_output
    when: backup_map_status == true

  - name: status of new nodes
    set_fact:
      new_node_status: true
    when: diff_output.stdout!= ""
  rescue:
  - name: No new nodes
    debug:
      msg: "No new nodes to add"
      verbosity: 2

- name: Fetch input
  blockinfile:
    path: "{{ role_path }}/files/dhcp.template"
    insertafter: '^#insert the static DHCP leases for configuration here'
    block: |
      host {{ item.split(',')[1] }} {
        hardware ethernet {{ item.split(',')[0] }};
        fixed-address {{ item.split(',')[2] }};
      }
    marker: "# {mark} DHCP BLOCK OF {{ item.split(',')[0] }}"
  with_lines: "{{ remove_header }}"
  ignore_errors: true
  when: (not cobbler_image_status) or (new_node_status == true)
  tags: install

- name: Create a backup file
  copy:
    src: "{{ role_path }}/files/new_mapping_file.csv"
    dest: "{{ role_path }}/files/backup_mapping_file.csv"

- name: Copy the dhcp.template inside container
  command: docker exec cobbler cp /root/omnia/appliance/roles/provision/files/dhcp.template /etc/cobbler/dhcp.template
  when:  ( cobbler_container_status == true ) and ( new_node_status == true )

- name: Cobbler sync for adding new nodes
  command: docker exec cobbler cobbler sync
  when:  ( cobbler_container_status == true ) and ( new_node_status == true )

- name: Restart dhcpd
  command: docker exec cobbler systemctl restart dhcpd
  when:  ( cobbler_container_status == true ) and ( new_node_status == true )