---
# ============================================================================
# deploy-homarr.yml — deploy Homarr as the `ansible` user
# ============================================================================
# PLAY 1 (precheck, runner): pull HOMARR_SECRET_ENCRYPTION_KEY from Infisical,
#         validate it. Stops with a reason if missing/invalid — no target change.
# PLAY 2: connect as `ansible`, create ~/docker/homarr/, write compose, start it.
#
# Prereq: host already bootstrapped (bootstrap.yml) so `ansible` user + key exist.
# Infisical auth env vars: same as bootstrap.yml (INFISICAL_CLIENT_ID/SECRET/PROJECT_ID).
#
# Usage: playbook playbooks/deploy-homarr.yml, extra vars: target=racknerd1
# ============================================================================

- name: "PRECHECK — fetch Homarr secret from Infisical"
  hosts: localhost
  gather_facts: false
  vars:
    infisical_url: "{{ lookup('env','INFISICAL_URL') | default('http://192.168.122.41:8080', true) }}"
    infisical_env_slug: "{{ lookup('env','INFISICAL_ENV_SLUG') | default('dev', true) }}"
  tasks:
    - name: "[precheck] Infisical auth vars present?"
      ansible.builtin.assert:
        that:
          - lookup('env','INFISICAL_CLIENT_ID') | length > 0
          - lookup('env','INFISICAL_CLIENT_SECRET') | length > 0
          - lookup('env','INFISICAL_PROJECT_ID') | length > 0
        fail_msg: "Missing INFISICAL_CLIENT_ID / _SECRET / _PROJECT_ID in Semaphore Environment."

    - name: "[precheck] Login to Infisical"
      infisical.vault.login:
        url: "{{ infisical_url }}"
        auth_method: universal_auth
        universal_auth_client_id: "{{ lookup('env','INFISICAL_CLIENT_ID') }}"
        universal_auth_client_secret: "{{ lookup('env','INFISICAL_CLIENT_SECRET') }}"
      register: infisical_login

    - name: "[precheck] Read secrets"
      infisical.vault.read_secrets:
        login_data: "{{ infisical_login.login_data }}"
        project_id: "{{ lookup('env','INFISICAL_PROJECT_ID') }}"
        env_slug: "{{ infisical_env_slug }}"
        path: "/"
        as_dict: true
      register: infisical_secrets

    - name: "[precheck] Validate Homarr key (64 hex)"
      ansible.builtin.assert:
        that:
          - infisical_secrets.secrets.HOMARR_SECRET_ENCRYPTION_KEY is defined
          - infisical_secrets.secrets.HOMARR_SECRET_ENCRYPTION_KEY | length == 64
        fail_msg: "HOMARR_SECRET_ENCRYPTION_KEY missing or not 64 hex chars in env '{{ infisical_env_slug }}'."

    - name: "[precheck] stash secrets for deploy play"
      ansible.builtin.set_fact:
        pc_homarr_key: "{{ infisical_secrets.secrets.HOMARR_SECRET_ENCRYPTION_KEY }}"
        pc_ssh_privkey: "{{ infisical_secrets.secrets.SSH_PRIVATE_KEY }}"
      no_log: true

    - name: "[precheck] write deploy private key to runner temp (0600)"
      ansible.builtin.copy:
        dest: "/tmp/homarr_deploy_key"
        content: "{{ pc_ssh_privkey }}\n"
        mode: "0600"
      no_log: true

    - name: "[precheck] OK"
      ansible.builtin.debug:
        msg: "Homarr secret retrieved + valid. Proceeding to deploy."

- name: "Deploy Homarr (rootless, as ansible user)"
  hosts: "{{ target | default('racknerd1') }}"
  gather_facts: false
  vars:
    deploy_user: ansible
    homarr_dir: "/home/{{ deploy_user }}/docker/homarr"
    homarr_port: 7575
    homarr_image: ghcr.io/homarr-labs/homarr:latest
    homarr_encryption_key: "{{ hostvars['localhost'].pc_homarr_key }}"
    # Connect AS the ansible user (created by bootstrap) using the deploy key. NOT root.
    ansible_user: ansible
    ansible_ssh_private_key_file: "/tmp/homarr_deploy_key"
    ansible_ssh_common_args: "-o StrictHostKeyChecking=accept-new -o IdentitiesOnly=yes"
  tasks:
    - name: Reset connection so docker group membership is active in this session
      ansible.builtin.meta: reset_connection

    - name: Gather facts (after connection reset)
      ansible.builtin.setup:

    - name: Docker available (rootless, via docker group)?
      ansible.builtin.command: docker version
      register: dv
      changed_when: false
      failed_when: dv.rc != 0

    - name: Create ~/docker/homarr tree
      ansible.builtin.file:
        path: "{{ item }}"
        state: directory
        owner: "{{ deploy_user }}"
        group: "{{ deploy_user }}"
        mode: "0755"
      loop:
        - "/home/{{ deploy_user }}/docker"
        - "{{ homarr_dir }}"
        - "{{ homarr_dir }}/appdata"

    - name: Write docker-compose.yml
      ansible.builtin.copy:
        dest: "{{ homarr_dir }}/docker-compose.yml"
        owner: "{{ deploy_user }}"
        group: "{{ deploy_user }}"
        mode: "0644"
        content: |
          services:
            homarr:
              container_name: homarr
              image: {{ homarr_image }}
              restart: unless-stopped
              volumes:
                - /var/run/docker.sock:/var/run/docker.sock
                - {{ homarr_dir }}/appdata:/appdata
              environment:
                - SECRET_ENCRYPTION_KEY={{ homarr_encryption_key }}
              ports:
                - "{{ homarr_port }}:7575"
      no_log: true

    - name: Pull + start Homarr
      community.docker.docker_compose_v2:
        project_src: "{{ homarr_dir }}"
        pull: always
        state: present

    - name: Wait for Homarr
      ansible.builtin.uri:
        url: "http://127.0.0.1:{{ homarr_port }}/"
        status_code: [200, 302, 307]
      register: health
      retries: 15
      delay: 5
      until: health.status is defined and health.status in [200, 302, 307]

    - name: Result
      ansible.builtin.debug:
        msg: "Homarr up on {{ inventory_hostname }}:{{ homarr_port }} (HTTP {{ health.status }})"

- name: "Cleanup runner temp key"
  hosts: localhost
  gather_facts: false
  tasks:
    - name: "remove temp deploy key from runner"
      ansible.builtin.file:
        path: /tmp/homarr_deploy_key
        state: absent