# 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 Apache SkyWalking tar file
  get_url:
    url: "https://dlcdn.apache.org/skywalking/{{ skywalking_version }}/apache-skywalking-apm-{{ skywalking_version }}.tar.gz"
    dest: "/usr/local/skywalking/apache-skywalking-apm-{{ skywalking_version }}.tar.gz"

- name: Extract tar file
  unarchive:
    src: "/usr/local/skywalking/apache-skywalking-apm-{{ skywalking_version }}.tar.gz"
    dest: "/usr/local/skywalking"
    remote_src: yes
    extra_opts: [--strip-components=1]

- name: Set ownership for extracted files
  ansible.builtin.file:
    path: /usr/local/skywalking
    owner: skywalking
    group: skywalking
    recurse: yes

- name: Check hostgroup size
  set_fact:
    group_size: "{{ groups['skywalking_oap'] | length }}"
    oap_standalone: "{{ [groups['skywalking_oap'][0]] }}"
    oap_bundled: "{{ groups['skywalking_oap'][1:] if groups['skywalking_oap'] | length > 1 else [] }}"

- name: Run the OAPSericeInit script
  shell: /usr/local/skywalking/bin/oapServiceInit.sh
  when: inventory_hostname in oap_standalone

- name: Run the OAPSericeNoInit script
  shell: /usr/local/skywalking/bin/oapServiceNoInit.sh
  when: inventory_hostname in oap_bundled

- 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: Registration of OAP Server address within WebUI environment file
  ansible.builtin.lineinfile:
    path: "{{ env_file }}"
    line: "{{ item.key }}={{ item.value }}"
    create: yes
  loop: "{{ sw_ui_env_vars | dict2items }}"
  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']