---
# Grafana Alloy installation and configuration
# See defaults/main.yml for build instructions

- name: Verify alloy binary exists
  ansible.builtin.stat:
    path: "{{ alloy_binary }}"
  register: alloy_binary_stat

- name: Fail if alloy binary not found
  ansible.builtin.fail:
    msg: |
      Alloy binary not found at {{ alloy_binary }}.
      Please build from source first (see ansible/roles/alloy/defaults/main.yml)
  when: not alloy_binary_stat.stat.exists

- name: Ensure alloy config directory exists
  ansible.builtin.file:
    path: "{{ alloy_config_dir }}"
    state: directory
    mode: '0755'

- name: Ensure alloy data directory exists
  ansible.builtin.file:
    path: "{{ alloy_data_dir }}"
    state: directory
    mode: '0755'

- name: Ensure textfile collector directory exists
  ansible.builtin.file:
    path: "{{ alloy_textfile_dir }}"
    state: directory
    mode: '0755'

# === Fetch PostgreSQL password from 1Password ===
# Skipped when running full playbook (pre_tasks sets it)
# but runs when using --tags alloy

- name: Fetch PostgreSQL metrics password from 1Password
  ansible.builtin.command:
    cmd: >-
      op --vault {{ alloy_op_vault }} item get {{ alloy_op_postgres_item }}
      --fields {{ alloy_op_postgres_field }} --reveal
  delegate_to: localhost
  register: alloy_postgres_password_result
  changed_when: false
  no_log: true
  when:
    - alloy_collect_postgres | default(false)
    - alloy_postgres_password is not defined

- name: Set PostgreSQL password fact
  ansible.builtin.set_fact:
    alloy_postgres_password: "{{ alloy_postgres_password_result.stdout }}"
  no_log: true
  when:
    - alloy_collect_postgres | default(false)
    - alloy_postgres_password is not defined

# === Deploy configuration ===

- name: Deploy PostgreSQL custom queries config
  ansible.builtin.template:
    src: postgres_queries.yaml.j2
    dest: "{{ alloy_config_dir }}/postgres_queries.yaml"
    mode: '0600'
  notify: Restart alloy
  when: alloy_collect_postgres | default(false)

- name: Deploy alloy configuration
  ansible.builtin.template:
    src: config.alloy.j2
    dest: "{{ alloy_config_dir }}/config.alloy"
    mode: '0600'
  notify: Restart alloy
  no_log: true

- name: Deploy alloy LaunchAgent plist
  ansible.builtin.template:
    src: alloy.plist.j2
    dest: ~/Library/LaunchAgents/mcquack.eblume.alloy.plist
    mode: '0644'
  notify: Restart alloy

- name: Check if alloy LaunchAgent is loaded
  ansible.builtin.command: launchctl list mcquack.eblume.alloy
  register: alloy_launchctl_check
  changed_when: false
  failed_when: false

- name: Load alloy LaunchAgent if not loaded
  ansible.builtin.command: launchctl load ~/Library/LaunchAgents/mcquack.eblume.alloy.plist
  when: alloy_launchctl_check.rc != 0
  changed_when: true
  failed_when: false