---
# Two code paths:
#   1. Fresh run (system_cfg undefined): normalize from raw `system` input.
#   2. Pre-computed (system_cfg already set, e.g. from main project's deploy_iac):
#      merge with bootstrap system_defaults to fill missing fields (luks, features,
#      etc.) that bootstrap expects but the main project doesn't set, then derive
#      convenience facts (hostname, os, os_version).
- name: Normalize system and disk configuration
  when: system_cfg is not defined
  block:
    - name: Validate raw system input types
      ansible.builtin.include_tasks: _validate_input.yml

    - name: Normalize system configuration
      ansible.builtin.include_tasks: _normalize_system.yml

    - name: Normalize disk configuration
      ansible.builtin.include_tasks: _normalize_disks.yml

- name: Check if pre-computed system_cfg needs enrichment
  when: system_cfg is defined
  ansible.builtin.set_fact:
    _bootstrap_needs_enrichment: "{{ hostname is not defined }}"

- name: Merge pre-computed system_cfg with bootstrap system_defaults
  when:
    - system_cfg is defined
    - _bootstrap_needs_enrichment | default(false) | bool
  ansible.builtin.set_fact:
    system_cfg: "{{ system_defaults | combine(system | default({}), recursive=True) | combine(system_cfg, recursive=True) }}"

- name: Apply mirror default for pre-computed system_cfg
  when:
    - system_cfg is defined
    - _bootstrap_needs_enrichment | default(false) | bool
    - system_cfg.mirror | default('') | string | trim | length == 0
  vars:
    # Same as _normalize_system.yml — kept in sync manually.
    _mirror_defaults:
      debian: "https://deb.debian.org/debian/"
      ubuntu: "http://archive.ubuntu.com/ubuntu/"
      ubuntu-lts: "http://archive.ubuntu.com/ubuntu/"
  ansible.builtin.set_fact:
    system_cfg: >-
      {{
        system_cfg | combine({
          'mirror': _mirror_defaults[system_cfg.os | default('') | string | lower] | default('')
        }, recursive=True)
      }}

- name: Populate primary network fields from first interface (pre-computed)
  when:
    - system_cfg is defined
    - _bootstrap_needs_enrichment | default(false) | bool
    - system_cfg.network.interfaces | default([]) | length > 0
    - system_cfg.network.bridge | default('') | string | length == 0
  vars:
    _primary: "{{ system_cfg.network.interfaces[0] }}"
  ansible.builtin.set_fact:
    system_cfg: >-
      {{
        system_cfg | combine({
          'network': system_cfg.network | combine({
            'bridge': _primary.bridge | default(''),
            'vlan': _primary.vlan | default(''),
            'ip': _primary.ip | default(''),
            'prefix': _primary.prefix | default(''),
            'gateway': _primary.gateway | default('')
          })
        }, recursive=True)
      }}

- name: Derive convenience facts from pre-computed system_cfg
  when:
    - system_cfg is defined
    - _bootstrap_needs_enrichment | default(false) | bool
  ansible.builtin.set_fact:
    hostname: "{{ system_cfg.name | default(inventory_hostname) }}"
    os: "{{ system_cfg.os | default('') }}"
    os_version: "{{ system_cfg.version | default('') | string }}"

- name: Normalize disk configuration (pre-computed system_cfg)
  when:
    - system_cfg is defined
    - install_drive is not defined
  ansible.builtin.include_tasks: _normalize_disks.yml