---

- module_defaults:
    group/aws:
      aws_access_key: '{{ aws_access_key | default(omit) }}'
      aws_secret_key: '{{ aws_secret_key | default(omit) }}'
      security_token: '{{ security_token | default(omit) }}'
      region: '{{ aws_region | default(omit) }}'

  block:

    # ==== Env setup ==========================================================
    - name: list available AZs
      aws_az_info:
      register: region_azs

    - name: pick an AZ for testing
      set_fact:
        availability_zone: "{{ region_azs.availability_zones[0].zone_name }}"

    - name: Create a test VPC
      ec2_vpc_net:
        name: "{{ vpc_name }}"
        cidr_block: "{{ vpc_cidr }}"
        tags:
          Name: Cloudformation testing
      register: testing_vpc

    - name: Create a test subnet
      ec2_vpc_subnet:
        vpc_id: "{{ testing_vpc.vpc.id }}"
        cidr: "{{ subnet_cidr }}"
        az: "{{ availability_zone }}"
      register: testing_subnet

    - name: Find AMI to use
      ec2_ami_info:
        owners: 'amazon'
        filters:
          name: '{{ ec2_ami_name }}'
      register: ec2_amis

    - name: Set fact with latest AMI
      vars:
        latest_ami: '{{ ec2_amis.images | sort(attribute="creation_date") | last }}'
      set_fact:
        ec2_ami_image: '{{ latest_ami.image_id }}'

    # ==== Cloudformation tests ===============================================

    # 1. Basic stack creation (check mode, actual run and idempotency)
    # 2. Tags
    # 3. cloudformation_info tests (basic + all_facts)
    # 4. termination_protection
    # 5. create_changeset + changeset_name

    # There is still scope to add tests for -
    # 1. capabilities
    # 2. stack_policy
    # 3. on_create_failure (covered in unit tests)
    # 4. Passing in a role
    # 5. nested stacks?


    - name: create a cloudformation stack (check mode)
      cloudformation:
        stack_name: "{{ stack_name }}"
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.nano"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: cf_stack
      check_mode: yes

    - name: check task return attributes
      assert:
        that:
          - cf_stack.changed
          - "'msg' in cf_stack and 'New stack would be created' in cf_stack.msg"

    - name: create a cloudformation stack
      cloudformation:
        stack_name: "{{ stack_name }}"
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.nano"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: cf_stack

    - name: check task return attributes
      assert:
        that:
          - cf_stack.changed
          - "'events' in cf_stack"
          - "'output' in cf_stack and 'Stack CREATE complete' in cf_stack.output"
          - "'stack_outputs' in cf_stack and 'InstanceId' in cf_stack.stack_outputs"
          - "'stack_resources' in cf_stack"

    - name: create a cloudformation stack (check mode) (idempotent)
      cloudformation:
        stack_name: "{{ stack_name }}"
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.nano"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: cf_stack
      check_mode: yes

    - name: check task return attributes
      assert:
        that:
          - not cf_stack.changed

    - name: create a cloudformation stack (idempotent)
      cloudformation:
        stack_name: "{{ stack_name }}"
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.nano"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: cf_stack

    - name: check task return attributes
      assert:
        that:
          - not cf_stack.changed
          - "'output' in cf_stack and 'Stack is already up-to-date.' in cf_stack.output"
          - "'stack_outputs' in cf_stack and 'InstanceId' in cf_stack.stack_outputs"
          - "'stack_resources' in cf_stack"

    - name: get stack details
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info

    - name: assert stack info
      assert:
        that:
          - "'cloudformation' in stack_info"
          - "stack_info.cloudformation | length == 1"
          - "stack_name in stack_info.cloudformation"
          - "'stack_description' in stack_info.cloudformation[stack_name]"
          - "'stack_outputs' in stack_info.cloudformation[stack_name]"
          - "'stack_parameters' in stack_info.cloudformation[stack_name]"
          - "'stack_tags' in stack_info.cloudformation[stack_name]"
          - "stack_info.cloudformation[stack_name].stack_tags.Stack == stack_name"

    - name: get stack details (checkmode)
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info
      check_mode: yes

    - name: assert stack info
      assert:
        that:
          - "'cloudformation' in stack_info"
          - "stack_info.cloudformation | length == 1"
          - "stack_name in stack_info.cloudformation"
          - "'stack_description' in stack_info.cloudformation[stack_name]"
          - "'stack_outputs' in stack_info.cloudformation[stack_name]"
          - "'stack_parameters' in stack_info.cloudformation[stack_name]"
          - "'stack_tags' in stack_info.cloudformation[stack_name]"
          - "stack_info.cloudformation[stack_name].stack_tags.Stack == stack_name"

    - name: get stack details (all_facts)
      cloudformation_info:
        stack_name: "{{ stack_name }}"
        all_facts: yes
      register: stack_info

    - name: assert stack info
      assert:
        that:
          - "'stack_events' in stack_info.cloudformation[stack_name]"
          - "'stack_policy' in stack_info.cloudformation[stack_name]"
          - "'stack_resource_list' in stack_info.cloudformation[stack_name]"
          - "'stack_resources' in stack_info.cloudformation[stack_name]"
          - "'stack_template' in stack_info.cloudformation[stack_name]"

    - name: get stack details (all_facts) (checkmode)
      cloudformation_info:
        stack_name: "{{ stack_name }}"
        all_facts: yes
      register: stack_info
      check_mode: yes

    - name: assert stack info
      assert:
        that:
          - "'stack_events' in stack_info.cloudformation[stack_name]"
          - "'stack_policy' in stack_info.cloudformation[stack_name]"
          - "'stack_resource_list' in stack_info.cloudformation[stack_name]"
          - "'stack_resources' in stack_info.cloudformation[stack_name]"
          - "'stack_template' in stack_info.cloudformation[stack_name]"

    # ==== Cloudformation tests (create changeset) ============================

    # try to create a changeset by changing instance type
    - name: create a changeset
      cloudformation:
        stack_name: "{{ stack_name }}"
        create_changeset: yes
        changeset_name: "test-changeset"
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.micro"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: create_changeset_result

    - name: assert changeset created
      assert:
        that:
          - "create_changeset_result.changed"
          - "'change_set_id' in create_changeset_result"
          - "'Stack CREATE_CHANGESET complete' in create_changeset_result.output"

    - name: get stack details with changesets
      cloudformation_info:
        stack_name: "{{ stack_name }}"
        stack_change_sets: True
      register: stack_info

    - name: assert changesets in info
      assert:
        that:
          - "'stack_change_sets' in stack_info.cloudformation[stack_name]"

    - name: get stack details with changesets (checkmode)
      cloudformation_info:
        stack_name: "{{ stack_name }}"
        stack_change_sets: True
      register: stack_info
      check_mode: yes

    - name: assert changesets in info
      assert:
        that:
          - "'stack_change_sets' in stack_info.cloudformation[stack_name]"

    # try to create an empty changeset by passing in unchanged template
    - name: create a changeset
      cloudformation:
        stack_name: "{{ stack_name }}"
        create_changeset: yes
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.nano"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: create_changeset_result

    - name: assert changeset created
      assert:
        that:
          - "not create_changeset_result.changed"
          - "'The created Change Set did not contain any changes to this stack and was deleted.' in create_changeset_result.output"

    # ==== Cloudformation tests (termination_protection) ======================

    - name: set termination protection to true
      cloudformation:
        stack_name: "{{ stack_name }}"
        termination_protection: yes
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.nano"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: cf_stack

#    This fails - #65592
#    - name: check task return attributes
#      assert:
#        that:
#          - cf_stack.changed

    - name: get stack details
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info

    - name: assert stack info
      assert:
        that:
          - "stack_info.cloudformation[stack_name].stack_description.enable_termination_protection"

    - name: get stack details (checkmode)
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info
      check_mode: yes

    - name: assert stack info
      assert:
        that:
          - "stack_info.cloudformation[stack_name].stack_description.enable_termination_protection"

    - name: set termination protection to false
      cloudformation:
        stack_name: "{{ stack_name }}"
        termination_protection: no
        template_body: "{{ lookup('file','cf_template.json') }}"
        template_parameters:
          InstanceType: "t3.nano"
          ImageId: "{{ ec2_ami_image }}"
          SubnetId: "{{ testing_subnet.subnet.id }}"
        tags:
          Stack: "{{ stack_name }}"
          test: "{{ resource_prefix }}"
      register: cf_stack

#    This fails - #65592
#    - name: check task return attributes
#      assert:
#        that:
#          - cf_stack.changed

    - name: get stack details
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info

    - name: assert stack info
      assert:
        that:
          - "not stack_info.cloudformation[stack_name].stack_description.enable_termination_protection"

    - name: get stack details (checkmode)
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info
      check_mode: yes

    - name: assert stack info
      assert:
        that:
          - "not stack_info.cloudformation[stack_name].stack_description.enable_termination_protection"

    # ==== Cloudformation tests (delete stack tests) ==========================

    - name: delete cloudformation stack (check mode)
      cloudformation:
        stack_name: "{{ stack_name }}"
        state: absent
      check_mode: yes
      register: cf_stack

    - name: check task return attributes
      assert:
        that:
          - cf_stack.changed
          - "'msg' in cf_stack and 'Stack would be deleted' in cf_stack.msg"

    - name: delete cloudformation stack
      cloudformation:
        stack_name: "{{ stack_name }}"
        state: absent
      register: cf_stack

    - name: check task return attributes
      assert:
        that:
          - cf_stack.changed
          - "'output' in cf_stack and 'Stack Deleted' in cf_stack.output"

    - name: delete cloudformation stack (check mode) (idempotent)
      cloudformation:
        stack_name: "{{ stack_name }}"
        state: absent
      check_mode: yes
      register: cf_stack

    - name: check task return attributes
      assert:
        that:
          - not cf_stack.changed
          - "'msg' in cf_stack"
          - >-
            "Stack doesn't exist" in cf_stack.msg

    - name: delete cloudformation stack (idempotent)
      cloudformation:
        stack_name: "{{ stack_name }}"
        state: absent
      register: cf_stack

    - name: check task return attributes
      assert:
        that:
          - not cf_stack.changed
          - "'output' in cf_stack and 'Stack not found.' in cf_stack.output"

    - name: get stack details
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info

    - name: assert stack info
      assert:
        that:
          - "not stack_info.cloudformation"

    - name: get stack details (checkmode)
      cloudformation_info:
        stack_name: "{{ stack_name }}"
      register: stack_info
      check_mode: yes

    - name: assert stack info
      assert:
        that:
          - "not stack_info.cloudformation"

    # ==== Cleanup ============================================================

  always:

    - name: delete stack
      cloudformation:
        stack_name: "{{ stack_name }}"
        state: absent
      ignore_errors: yes

    - name: Delete test subnet
      ec2_vpc_subnet:
        vpc_id: "{{ testing_vpc.vpc.id }}"
        cidr: "{{ subnet_cidr }}"
        state: absent
      ignore_errors: yes

    - name: Delete test VPC
      ec2_vpc_net:
        name: "{{ vpc_name }}"
        cidr_block: "{{ vpc_cidr }}"
        state: absent
      ignore_errors: yes
