---
- name: Playbook to deploy Jar
  hosts: all
  gather_facts: false
  become: yes
  become_method: sudo

  tasks:
    - name: Check if region is configured
      shell: "aws configure get default.region"
      register: aws_cli_region_reponse

    - name: "ERROR: AWS region missing"
      vars:
        msg: |
          #############################################################################################################################
          #######  AWS REGION IS NOT CONFIGURED PROPERLY. CURRENT REGION: {{ aws_cli_region_reponse.stdout | upper }}, SHOULD BE: AP-SOUTHEAST-1  #######
          #############################################################################################################################
      debug:
        msg: "{{ msg.split('\n') }}"
      when: aws_cli_region_reponse.stdout != "ap-southeast-1"
      failed_when:
        - aws_cli_region_reponse.stdout != "ap-southeast-1"

    - name: Check if CICD profile is configured
      shell: "aws configure get region --profile cicd"
      register: aws_profile_cli_region_reponse

    - name: "ERROR: AWS region missing in profile"
      vars:
        msg: |
          #############################################################################################################################
          #######  AWS REGION IS NOT CONFIGURED PROPERLY. CURRENT REGION: {{ aws_cli_region_reponse.stdout | upper }}, SHOULD BE: AP-SOUTHEAST-1  #######
          #############################################################################################################################
      debug:
        msg: "{{ msg.split('\n') }}"
      when: aws_profile_cli_region_reponse.stdout != "ap-southeast-1"
      failed_when:
        - aws_profile_cli_region_reponse.stdout != "ap-southeast-1"

    - name: Check if IAM role is attached
      shell: "aws sts get-caller-identity"
      register: aws_cli_gci_reponse

    - name: "ERROR: IAM role missing"
      vars:
        msg: |
          #############################################################################################################################
          ###############################################   CICD ROLE IS NOT ATTACHED   ###############################################
          #############################################################################################################################
      debug:
        msg: "{{ msg.split('\n') }}"
      when:
        - aws_cli_gci_reponse.stdout is not search("assumed-role/cicd")
      failed_when:
        - aws_cli_gci_reponse.stdout is not search("assumed-role/cicd")

    - name: Check if systemd service exists
      stat:
        path: "/etc/systemd/system/{{ app_name }}.service"
      register: service_status

    - name: Systemd service status
      vars:
        msg: |
          #############################################################################################################################
          ################################  SYSTEMD SERVICE {{ app_name | upper }} DOES NOT EXIST. EXITING. ##################################
          #############################################################################################################################
      debug:
        msg: "{{ msg.split('\n') }}"
      when: service_status is defined and not service_status.stat.exists
      failed_when:
        - not service_status.stat.exists

    - name: Check application directory structure
      block:

      - name: Check application directory structure
        stat:
          path: "/home/ubuntu/{{ app_name }}"
        register: app_dir_status

      - name: Application directory does not exist
        vars:
          msg: |
            #############################################################################################################################
            ######################  APPLICATION DIRECTORY: /home/ubuntu/{{ app_name }} DOES NOT EXIST. EXITING.  #######################
            #############################################################################################################################
        debug:
          msg: "{{ msg.split('\n') }}"
        when: app_dir_status is defined and not app_dir_status.stat.exists
        failed_when:
          - not app_dir_status.stat.exists

      tags:
      - artifact_deployment

    - name: Ensure jq is installed
      apt:
        name: "jq"
        state: present
        force_apt_get: yes

    - name: Checking if environment file exists, pre-deployment
      stat:
        path: "/etc/sysconfig/{{ app_name }}"
      register: env_file

    - name: Backing up current properties
      copy:
        src: "/etc/sysconfig/{{ app_name }}"
        dest: "/etc/sysconfig/rollback-{{ app_name }}"
        owner: ubuntu
        group: ubuntu
        mode: '0664'
        remote_src: yes
        force: yes
      when: env_file.stat.exists

    - name: Checking if current symlink exists, pre-deployment
      stat:
        path: "/home/ubuntu/{{ app_name }}/{{ app_name }}-current.jar"
      register: current_symlink

    - name: Show output
      debug: msg= "{{ current_symlink }}"

    - name: Checking if current artifact exists, pre-deployment
      stat:
        path: "{{ current_symlink.stat.lnk_source }}"
      when:
      - current_symlink.stat.exists
      - current_symlink.stat.islnk
      register: current_artifact

    - name: Show output
      debug: msg= "{{ current_artifact }}"

    - name: Stopping systemd service
      systemd:
        name: '{{ app_name }}'
        state: stopped

    - name: Download latest properties
      shell: "pull-env '{{ env }}' '{{ app_name }}'"
      ignore_errors: yes

    - name: Download latest artifact
      copy:
        src: "{{ item }}"
        dest: "/home/ubuntu/{{ app_name }}/"
        owner: ubuntu
        group: ubuntu
      with_fileglob:
        - "{{ repo_name }}/target/*.jar"

    - name: Setting latest_artifact_name
      set_fact:
        latest_artifact_name: '{{ item.split("/")[-1] }}'
      with_fileglob:
        - "{{ repo_name }}/target/*.jar"

    - name: Creating rollback symlink
      file:
        src: "{{ current_artifact.stat.path }}"
        dest: "/home/ubuntu/{{ app_name }}/rollback"
        state: link

    - name: Removing current symlink
      file:
        path: "/home/ubuntu/{{ app_name }}/{{ app_name }}-current.jar"
        state: absent

    - name: Creating current symlink to latest artifact
      file:
        src: "/home/ubuntu/{{ app_name }}/{{ latest_artifact_name }}"
        dest: "/home/ubuntu/{{ app_name }}/{{ app_name }}-current.jar"
        state: link

    - name: Starting systemd service
      systemd:
        name: '{{ app_name }}'
        state: started
        daemon_reload: yes

    - name: Trying healthcheck
      uri:
        url: "http://localhost:{{ app_port }}{{ healthcheck_api }}"
        method: GET
      register: healthcheck_response
      until: healthcheck_response.status == 200
      retries: 60
      delay: 1
      ignore_errors: False

    - name: Healthcheck response
      vars:
        msg: |
          ##############################################################################################################################
                                HEALTH-CHECK ({{ healthcheck_api }}) RESPONSE: {{ healthcheck_response.status }}
          ##############################################################################################################################
      debug:
        msg: "{{ msg.split('\n') }}"