- name: Make sure file does not exist
  file:
    dest: /tmp/pg_hba.conf
    state: absent

- name: check_mode run
  postgresql_pg_hba:
    dest: /tmp/pg_hba.conf
    contype: host
    source: '0000:ffff::'
    netmask: 'ffff:fff0::'
    method: md5
    backup: true
    order: sud
    state: "{{item}}"
  check_mode: yes
  with_items:
  - present
  - absent

- name: check_mode check
  stat:
    path: /tmp/pg_hba.conf
  register: pg_hba_checkmode_check

- name: Remove several ip addresses for idempotency check
  postgresql_pg_hba:
    contype: "{{item.contype|default('host')}}"
    databases: "{{item.databases|default('all')}}"
    dest: /tmp/pg_hba.conf
    method: md5
    netmask: "{{item.netmask|default('')}}"
    order: sud
    source: "{{item.source|default('')}}"
    state: absent
    users: "{{item.users|default('all')}}"
  with_items: "{{pg_hba_test_ips}}"
  register: pg_hba_idempotency_check1

- name: idempotency not creating file check
  stat:
    path: /tmp/pg_hba.conf
  register: pg_hba_idempotency_file_check

- name: Add several ip addresses
  postgresql_pg_hba:
    backup: true
    contype: "{{item.contype|default('host')}}"
    create: true
    databases: "{{item.databases|default('all')}}"
    dest: /tmp/pg_hba.conf
    method: md5
    netmask: "{{item.netmask|default('')}}"
    order: sud
    source: "{{item.source|default('')}}"
    state: present
    users: "{{item.users|default('all')}}"
  register: pg_hba_change
  with_items: "{{pg_hba_test_ips}}"

- name: read pg_hba rules
  postgresql_pg_hba:
    dest: /tmp/pg_hba.conf
  register: pg_hba

- name: Add several ip addresses again for idempotency check
  postgresql_pg_hba:
    contype: "{{item.contype|default('host')}}"
    databases: "{{item.databases|default('all')}}"
    dest: /tmp/pg_hba.conf
    method: md5
    netmask: "{{item.netmask|default('')}}"
    order: sud
    source: "{{item.source|default('')}}"
    state: present
    users: "{{item.users|default('all')}}"
  with_items: "{{pg_hba_test_ips}}"
  register: pg_hba_idempotency_check2

- name: pre-backup stat
  stat:
    path: /tmp/pg_hba.conf
  register: prebackupstat

- name: Add new ip address for backup check and netmask_sameas_prefix check
  postgresql_pg_hba:
    backup: true
    contype: host
    dest: /tmp/pg_hba.conf
    method: md5
    netmask: 255.255.255.0
    order: sud
    source: '172.21.0.0'
    state: present
  register: pg_hba_backup_check2

- name: Add new ip address for netmask_sameas_prefix check
  postgresql_pg_hba:
    backup: true
    contype: host
    dest: /tmp/pg_hba.conf
    method: md5
    order: sud
    source: '172.21.0.0/24'
    state: present
  register: netmask_sameas_prefix_check

- name: post-backup stat
  stat:
    path: "{{pg_hba_backup_check2.backup_file}}"
  register: postbackupstat

- name: Dont allow netmask for src in [all, samehost, samenet]
  postgresql_pg_hba:
    contype: host
    dest: /tmp/pg_hba.conf
    method: md5
    netmask: '255.255.255.255'
    order: sud
    source: all
    state: present
  register: pg_hba_fail_src_all_with_netmask
  ignore_errors: yes

- assert:
    that:
    - 'pg_hba.pg_hba == [
           { "db": "all", "method": "md5", "type": "local", "usr": "all" },
           { "db": "all", "method": "md5", "type": "local", "usr": "postgres" },
           { "db": "all", "method": "md5", "src": "0:ff00::/120", "type": "host", "usr": "all" },
           { "db": "all", "method": "md5", "src": "192.168.0.0/24", "type": "host", "usr": "all" },
           { "db": "replication", "method": "md5", "src": "192.168.0.0/24", "type": "host", "usr": "all" },
           { "db": "all", "method": "md5", "src": "172.16.0.0/16", "type": "host", "usr": "all" },
           { "db": "all", "method": "md5", "src": "0:fff0::/28", "type": "host", "usr": "all" }
         ]'
    - 'pg_hba_change is changed'
    - 'pg_hba_checkmode_check.stat.exists == false'
    - 'not pg_hba_idempotency_check1 is changed'
    - 'not pg_hba_idempotency_check2 is changed'
    - 'pg_hba_idempotency_file_check.stat.exists == false'
    - 'prebackupstat.stat.checksum == postbackupstat.stat.checksum'
    - 'pg_hba_fail_src_all_with_netmask is failed'
    - 'not netmask_sameas_prefix_check is changed'