- name: Fail if no terraform command is given
  fail:
    msg: "No terraform command given."
  when: terraform_command is not defined

- name: Create terrafrom overrides
  when: terraform_overrides is defined
  copy:
    content: "{{ zj_override.content }}"
    dest: "{{ zj_override.dir }}/override.tf"
    mode: 0644
  loop: "{{ terraform_overrides }}"
  loop_control:
    loop_var: zj_override

- name: Initialize terraform
  command: "{{ terraform_executable }} init -no-color -input=false"
  args:
    chdir: "{{ zuul_work_dir }}"
  environment:
    TF_IN_AUTOMATION: 1

- name: List workspaces
  when: terraform_workspace is defined
  shell: |
    set -o pipefail
    {{ terraform_executable }} workspace list -no-color | sed 's/^..//'
  register: _terraform_workspace_list
  args:
    executable: /bin/bash
    chdir: "{{ zuul_work_dir }}"
  environment:
    TF_IN_AUTOMATION: 1

- name: Create workspace if it doesn't exist
  when:
    - terraform_workspace is defined
    - terraform_workspace not in _terraform_workspace_list.stdout_lines
    - terraform_create_workspace
  command: "{{ terraform_executable }} workspace new -no-color {{ terraform_workspace }}"
  args:
    chdir: "{{ zuul_work_dir }}"
  environment:
    TF_IN_AUTOMATION: 1

- name: Select workspace
  when:
    - terraform_workspace is defined
  command: "{{ terraform_executable }} workspace select -no-color {{ terraform_workspace }}"
  args:
    chdir: "{{ zuul_work_dir }}"
  environment:
    TF_IN_AUTOMATION: 1

- name: Run terraform
  register: terraform_state_change
  command: >-
    {{ terraform_executable }} {{ terraform_command }}
    -no-color
    -input=false
    {{ terraform_extra_args }}
    {% if terraform_command == 'apply' or terraform_command == 'destroy' %}-auto-approve{% endif %}
    {{ terraform_plan }}
  args:
    chdir: "{{ zuul_work_dir }}"
  environment:
    TF_IN_AUTOMATION: 1

- name: Remove workspace
  when:
    - terraform_purge_workspace
    - terraform_command == "destroy"
    - terraform_workspace is defined
    - terraform_workspace != "default"
  block:
    - name: Leave workspace
      command: "{{ terraform_executable }} workspace select -no-color default"
      args:
        chdir: "{{ zuul_work_dir }}"
      environment:
        TF_IN_AUTOMATION: 1
    - name: Delete workspace
      command: "{{ terraform_executable }} workspace delete -no-color {{ terraform_workspace }}"
      args:
        chdir: "{{ zuul_work_dir }}"
      environment:
        TF_IN_AUTOMATION: 1

- name: Get path to main.tf relative to the repo root
  when: terraform_command == "plan"
  register: main_file_location
  command: "git ls-files --full-name main.tf"  # noqa command-instead-of-module
  args:
    chdir: "{{ zuul_work_dir }}"

- name: Return output if command is plan
  when:
    - terraform_command == "plan"
    - terraform_comment
  zuul_return:
    data:
      zuul:
        file_comments: >
          {% set file_comments = {} -%}
          {% set _ = file_comments.update({main_file_location.stdout: [{'message': terraform_state_change.stdout }]}) %}
          {{- file_comments -}}