---
- name: Ensure MCP installer definitions list is valid
  ansible.builtin.assert:
    that:
      - linux_dev_station_mcp_installers is iterable
    fail_msg: "linux_dev_station_mcp_installers must be a list of installer definitions."

- name: Validate MCP installer kind values
  ansible.builtin.assert:
    that:
      - item.kind is defined
      - item.kind in ['npm', 'uv', 'go']
    fail_msg: >-
      MCP installer '{{ item.name | default('unnamed') }}'
      has unsupported kind '{{ item.kind | default('undefined') }}'.
      Supported: npm, uv, go.
  loop: "{{ linux_dev_station_mcp_installers }}"
  when: item.enabled | default(true) | bool

- name: Validate npm MCP installers
  ansible.builtin.assert:
    that:
      - item.package is defined
      - item.package | length > 0
    fail_msg: "npm MCP installer '{{ item.name | default('unnamed') }}' requires 'package'."
  loop: "{{ linux_dev_station_mcp_installers }}"
  when:
    - item.enabled | default(true) | bool
    - item.kind == 'npm'

- name: Validate uv MCP installers
  ansible.builtin.assert:
    that:
      - item.package is defined
      - item.package | length > 0
      - item.binary is defined
      - item.binary | length > 0
    fail_msg: "uv MCP installer '{{ item.name | default('unnamed') }}' requires 'package' and 'binary'."
  loop: "{{ linux_dev_station_mcp_installers }}"
  when:
    - item.enabled | default(true) | bool
    - item.kind == 'uv'

- name: Validate go MCP installers
  ansible.builtin.assert:
    that:
      - item.module is defined
      - item.module | length > 0
      - item.binary is defined
      - item.binary | length > 0
    fail_msg: "go MCP installer '{{ item.name | default('unnamed') }}' requires 'module' and 'binary'."
  loop: "{{ linux_dev_station_mcp_installers }}"
  when:
    - item.enabled | default(true) | bool
    - item.kind == 'go'

- name: Discover npm executable path for MCP installers
  become: true
  become_user: "{{ linux_dev_station_service_user }}"
  ansible.builtin.command: /bin/sh -lc "command -v npm"
  register: __linux_dev_station_mcp_npm_path
  changed_when: false
  failed_when: false
  environment:
    PATH: "{{ linux_dev_station_path }}"
  when: (linux_dev_station_mcp_installers | selectattr('kind', 'equalto', 'npm') | list | length) > 0

- name: Install npm MCP packages for service user
  become: true
  become_user: "{{ linux_dev_station_service_user }}"
  ansible.builtin.command:
    argv:
      - "{{ __linux_dev_station_mcp_npm_path.stdout | trim }}"
      - install
      - --prefix
      - "{{ linux_dev_station_service_home }}/.local"
      - --global
      - "{{ item.package }}@{{ item.version | default('latest') }}"
  args:
    creates: "{{ linux_dev_station_service_home }}/.local/lib/node_modules/{{ item.package }}"
  register: __linux_dev_station_mcp_npm_install
  changed_when: __linux_dev_station_mcp_npm_install.rc == 0
  environment:
    HOME: "{{ linux_dev_station_service_home }}"
    USER: "{{ linux_dev_station_service_user }}"
    PATH: "{{ linux_dev_station_path }}"
  notify: Restart opencode
  loop: "{{ linux_dev_station_mcp_installers }}"
  when:
    - item.enabled | default(true) | bool
    - item.kind == 'npm'
    - __linux_dev_station_mcp_npm_path.rc | default(1) == 0

- name: Install uv MCP tools for service user
  become: true
  become_user: "{{ linux_dev_station_service_user }}"
  ansible.builtin.command:
    argv:
      - uv
      - tool
      - install
      - "{{ item.package }}@{{ item.version | default('latest') }}"
  args:
    creates: "{{ linux_dev_station_service_home }}/.local/bin/{{ item.binary }}"
  register: __linux_dev_station_mcp_uv_install
  changed_when: __linux_dev_station_mcp_uv_install.rc == 0
  environment:
    HOME: "{{ linux_dev_station_service_home }}"
    USER: "{{ linux_dev_station_service_user }}"
    PATH: "{{ linux_dev_station_path }}"
  notify: Restart opencode
  loop: "{{ linux_dev_station_mcp_installers }}"
  when:
    - item.enabled | default(true) | bool
    - item.kind == 'uv'

- name: Install go MCP binaries for service user
  become: true
  become_user: "{{ linux_dev_station_service_user }}"
  ansible.builtin.command:
    argv:
      - go
      - install
      - "{{ item.module }}@{{ item.version | default('latest') }}"
  args:
    creates: "{{ linux_dev_station_service_home }}/.local/bin/{{ item.binary }}"
  register: __linux_dev_station_mcp_go_install
  changed_when: __linux_dev_station_mcp_go_install.rc == 0
  environment:
    HOME: "{{ linux_dev_station_service_home }}"
    USER: "{{ linux_dev_station_service_user }}"
    PATH: "{{ linux_dev_station_path }}"
    GOBIN: "{{ linux_dev_station_service_home }}/.local/bin"
  notify: Restart opencode
  loop: "{{ linux_dev_station_mcp_installers }}"
  when:
    - item.enabled | default(true) | bool
    - item.kind == 'go'