# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
# See the License for the specific language governing permissions and
# limitations under the License.

---
- name: Create and set permissions for skywalking directory
  file:
    path: /usr/local/skywalking
    state: directory
    recurse: yes
    owner: skywalking
    group: skywalking
    mode: "0755"

- name: Download remote Apache SkyWalking tarball
  when: skywalking_tarball is match('^https?://.*')
  get_url:
    url: "{{ skywalking_tarball }}"
    dest: /usr/local/skywalking/apache-skywalking-apm.tar.gz

- name: Upload local Apache SkyWalking tarball
  when: skywalking_tarball is not match('^https?://.*')
  ansible.builtin.copy:
    src: "{{ skywalking_tarball }}"
    dest: /usr/local/skywalking/apache-skywalking-apm.tar.gz
    owner: skywalking
    group: skywalking
    mode: '0755'

- name: Extract tarball
  unarchive:
    src: /usr/local/skywalking/apache-skywalking-apm.tar.gz
    dest: /usr/local/skywalking
    remote_src: yes
    owner: skywalking
    group: skywalking
    extra_opts: [--strip-components=1]

- name: Generate environment file for webui service
  template:
    src: skywalking-ui.env.j2
    dest: /home/skywalking/webapp.env
    owner: skywalking
    mode: "0600"
  when: inventory_hostname in groups['skywalking_ui']

- name: Generate environment file for OAP service
  template:
    src: skywalking-oap.env.j2
    dest: /home/skywalking/oap.env
    owner: skywalking
    mode: "0600"
  when: inventory_hostname in groups['skywalking_oap']

- name: Check hostgroup size
  set_fact:
    group_size: "{{ groups['skywalking_oap'] | length }}"
    oap_init_node: "{{ [groups['skywalking_oap'][0]] }}"

- name: Run the OAPSericeInit script
  command: "sudo -u skywalking -- sh -c 'set -a; source /home/skywalking/oap.env; set +a; /usr/local/skywalking/bin/oapServiceInit.sh'"
  when: inventory_hostname in oap_init_node

- name: Generate systemd unit file for oap service
  template:
    src: skywalking-oap.service.j2
    dest: /usr/lib/systemd/system/skywalking-oap.service
    owner: root
    mode: "0660"
  when: inventory_hostname in groups['skywalking_oap']

- name: Generate systemd unit file for webui service
  template:
    src: skywalking-ui.service.j2
    dest: /usr/lib/systemd/system/skywalking-ui.service
    owner: root
    mode: "0660"
  when: inventory_hostname in groups['skywalking_ui']

- name: Reload systemd
  systemd:
    daemon_reload: yes

- name: Link and enable skywalking-oap service
  systemd:
    name: skywalking-oap
    enabled: yes
  when: inventory_hostname in groups['skywalking_oap']

- name: Link and enable skywalking-ui service
  systemd:
    name: skywalking-ui
    enabled: yes
  when: inventory_hostname in groups['skywalking_ui']

- name: Start SkyWalking-OAP service
  systemd:
    name: skywalking-oap
    state: started
  when: inventory_hostname in groups['skywalking_oap']

- name: Start SkyWalking-UI service
  systemd:
    name: skywalking-ui
    state: started
  when: inventory_hostname in groups['skywalking_ui']