- name: set connection information for all tasks
  set_fact:
    aws_connection_info: &aws_connection_info
      aws_access_key: "{{ aws_access_key }}"
      aws_secret_key: "{{ aws_secret_key }}"
      security_token: "{{ security_token }}"
      region: "{{ aws_region }}"
  no_log: true

- block:
    - name: Make basic instance
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison"
        image_id: "{{ ec2_ami_image[aws_region] }}"
        security_groups: "{{ sg.group_id }}"
        instance_type: t2.micro
        vpc_subnet_id: "{{ testing_subnet_a.subnet.id }}"
        wait: false
        <<: *aws_connection_info
      register: basic_instance

    - name: Make basic instance(check mode)
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison-checkmode"
        image_id: "{{ ec2_ami_image[aws_region] }}"
        security_groups: "{{ sg.group_id }}"
        instance_type: t2.micro
        vpc_subnet_id: "{{ testing_subnet_b.subnet.id }}"
        <<: *aws_connection_info
      check_mode: yes

    - name: fact presented ec2 instance
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison"
        <<: *aws_connection_info
      register: presented_instance_fact

    - name: fact checkmode ec2 instance
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison-checkmode"
        <<: *aws_connection_info
      register: checkmode_instance_fact

    - name: Confirm whether the check mode is working normally.
      assert:
        that:
          - "{{ presented_instance_fact.instances | length }} > 0"
          - "{{ checkmode_instance_fact.instances | length }} == 0"

    - name: Stop instance in check mode.
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison"
        state: stopped
        vpc_subnet_id: "{{ testing_subnet_a.subnet.id }}"
        <<: *aws_connection_info
      check_mode: yes

    - name: fact ec2 instance
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison"
        <<: *aws_connection_info
      register: confirm_checkmode_stopinstance_fact

    - name: Verify that it was not stopped.
      assert:
        that:
          - '"{{ confirm_checkmode_stopinstance_fact.instances[0].state.name }}" != "stopped"'

    - name: Stop instance.
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison"
        state: stopped
        vpc_subnet_id: "{{ testing_subnet_a.subnet.id }}"
        <<: *aws_connection_info
      register: instance_stop
      until: not instance_stop.failed
      retries: 10

      
    - name: fact stopped ec2 instance
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison"
        <<: *aws_connection_info
      register: confirm_stopinstance_fact

    - name: Verify that it was stopped.
      assert:
        that:
          - '"{{ confirm_stopinstance_fact.instances[0].state.name }}" in ["stopped", "stopping"]'

    - name: Running instance in check mode.
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison"
        state: running
        vpc_subnet_id: "{{ testing_subnet_a.subnet.id }}"
        <<: *aws_connection_info
      check_mode: yes
      
    - name: fact ec2 instance
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison"
        <<: *aws_connection_info
      register: confirm_checkmode_runninginstance_fact
      
    - name: Verify that it was not running.
      assert:
        that:
          - '"{{ confirm_checkmode_runninginstance_fact.instances[0].state.name }}" != "running"'

    - name: Running instance.
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison"
        state: running
        vpc_subnet_id: "{{ testing_subnet_a.subnet.id }}"
        <<: *aws_connection_info
          
    - name: fact ec2 instance.
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison"
        <<: *aws_connection_info
      register: confirm_runninginstance_fact

    - name: Verify that it was running.
      assert:
        that:
          - '"{{ confirm_runninginstance_fact.instances[0].state.name }}" == "running"'

    - name: Terminate instance in check mode.
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison"
        state: absent
        vpc_subnet_id: "{{ testing_subnet_a.subnet.id }}"
        <<: *aws_connection_info
      check_mode: yes

    - name: fact ec2 instance
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison"
        <<: *aws_connection_info
      register: confirm_checkmode_terminatedinstance_fact
      
    - name: Verify that it was not terminated,
      assert:
        that:
          - '"{{ confirm_checkmode_terminatedinstance_fact.instances[0].state.name }}" != "terminated"'

    - name: Terminate instance.
      ec2_instance:
        name: "{{ resource_prefix }}-checkmode-comparison"
        state: absent
        vpc_subnet_id: "{{ testing_subnet_a.subnet.id }}"
        <<: *aws_connection_info

    - name: fact ec2 instance
      ec2_instance_info:
        filters:
          "tag:Name": "{{ resource_prefix }}-checkmode-comparison"
        <<: *aws_connection_info
      register: confirm_terminatedinstance_fact
      
    - name: Verify that it was terminated,
      assert:
        that:
          - '"{{ confirm_terminatedinstance_fact.instances[0].state.name }}" == "terminated"'
        
  always:
    - name: Terminate instance
      ec2:
        instance_ids: "{{ basic_instance.instance_ids }}"
        state: absent
        <<: *aws_connection_info
      register: removed
      until: removed is not failed
      ignore_errors: yes
      retries: 10