# 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.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Helm management common block
  vars:
    check_deployed_result: null
    chart_values_file: null
    upgrade:
      pre:
        delete: null

  block:
    - name: "create temporary file for {{ chart_def['release'] }}'s values .yaml"
      tempfile:
        state: file
        suffix: .yaml
      register: chart_values_file
    - name: "write out values.yaml for {{ chart_def['release'] }}"
      copy:
        dest: "{{ chart_values_file.path }}"
        content: "{% if 'values' in chart_def %}{{ chart_def['values'] | to_nice_yaml }}{% else %}{% endif %}"

    - name: "check if {{ chart_def['release'] }} is deployed"
      command: helm status "{{ chart_def['release'] }}"
      register: check_deployed_result
      ignore_errors: True

    - name: "check if local overrides are present in {{ work_dir }}/tools/gate/local-overrides/{{ chart_def['release'] }}.yaml"
      stat:
        path: "{{ work_dir }}/tools/gate/local-overrides/{{ chart_def['release'] }}.yaml"
      register: local_overrides

    - name: "try to deploy release {{ chart_def['release'] }} in {{ chart_def['namespace'] }} namespace with {{ chart_def['chart_name'] }} chart"
      when: check_deployed_result is failed
      command: "helm install {{ work_dir }}/{{ chart_def['chart_name'] }} --namespace {{ chart_def['namespace'] }} --name {{ chart_def['release'] }} --values={{ chart_values_file.path }}{% if local_overrides.stat.exists %} --values {{ work_dir }}/tools/gate/local-overrides/{{ chart_def['release'] }}.yaml{% endif %}"
      register: out
    - name: "display info for the helm {{ chart_def['release'] }} release deploy"
      when: check_deployed_result is failed
      debug:
        var: out.stdout_lines

    - name: "pre-upgrade, delete jobs for {{ chart_def['release'] }} release"
      when:
        - check_deployed_result is succeeded
        - "'upgrade' in chart_def"
        - "'pre' in chart_def['upgrade']"
        - "'delete' in chart_def['upgrade']['pre']"
        - "chart_def.upgrade.pre.delete is not none"
      with_items: "{{ chart_def.upgrade.pre.delete }}"
      loop_control:
        loop_var: helm_upgrade_delete_job
      command: "kubectl delete --namespace {{ chart_def['namespace'] }} job -l application={{ helm_upgrade_delete_job.labels.application }},component={{ helm_upgrade_delete_job.labels.component }} --ignore-not-found=true"
    - name: "try to upgrade release {{ chart_def['release'] }} in {{ chart_def['namespace'] }} namespace with {{ chart_def['chart_name'] }} chart"
      when: check_deployed_result is succeeded
      command: "helm upgrade {{ chart_def['release'] }} {{ work_dir }}/{{ chart_def['chart_name'] }} --values={{ chart_values_file.path }}{% if local_overrides.stat.exists %} --values {{ work_dir }}/tools/gate/local-overrides/{{ chart_def['release'] }}.yaml{% endif %}"
      register: out
    - name: "display info for the helm {{ chart_def['release'] }} release upgrade"
      when: check_deployed_result is succeeded
      debug:
        var: out.stdout_lines

    - include: util-common-wait-for-pods.yaml
      when: ('timeout' in chart_def)
      vars:
        namespace: "{{ chart_def['namespace'] }}"
        timeout: "{{ chart_def['timeout'] }}"

    - include: util-common-helm-test.yaml
      when:
        - "'test' in chart_def"
        - "chart_def.test is not none"
        - "'enabled' in chart_def['test']"
        - "chart_def.test.enabled|bool == true"
      vars:
        release: "{{ chart_def['release'] }}"
        namespace: "{{ chart_def['namespace'] }}"
        test_settings: "{{ chart_def.test }}"

  always:
    - name: "remove values.yaml for {{ chart_def['release'] }}"
      file:
        path: "{{ chart_values_file.path }}"
        state: absent