---
- name: Install DATUM Gateway build dependencies
  apt:
    name:
      - cmake
      - build-essential
      - git
      - libjansson-dev
      - libmicrohttpd-dev
      - libsodium-dev
      - libcurl4-openssl-dev
      # Runtime-only (netcat for health check)
      - netcat-openbsd
    state: present
    update_cache: yes

# ===========================================
# System User and Directories
# ===========================================
- name: Create datum system user
  user:
    name: "{{ datum_gateway_user }}"
    system: yes
    shell: /usr/sbin/nologin
    home: "{{ datum_gateway_dir }}"
    create_home: no
    comment: "DATUM Gateway"

- name: Create DATUM Gateway directories
  file:
    path: "{{ item.path }}"
    state: directory
    owner: "{{ item.owner }}"
    group: "{{ datum_gateway_group }}"
    mode: "{{ item.mode }}"
  loop:
    - { path: "{{ datum_gateway_dir }}",        owner: root,                   mode: "0755" }
    - { path: "{{ datum_gateway_source_dir }}", owner: root,                   mode: "0755" }
    - { path: "{{ datum_gateway_config_dir }}", owner: "{{ datum_gateway_user }}", mode: "0750" }
    - { path: "{{ datum_gateway_log_dir }}",    owner: "{{ datum_gateway_user }}", mode: "0750" }

# ===========================================
# Build from Source
# ===========================================
- name: Clone DATUM Gateway repository at {{ datum_gateway_version }}
  git:
    repo: https://github.com/OCEAN-xyz/datum_gateway.git
    dest: "{{ datum_gateway_source_dir }}"
    version: "{{ datum_gateway_version }}"
    force: yes
  register: git_clone

- name: Configure cmake build
  command: cmake . -DCMAKE_BUILD_TYPE=Release
  args:
    chdir: "{{ datum_gateway_source_dir }}"

- name: Compile datum_gateway
  command: make -j{{ datum_gateway_build_jobs }}
  args:
    chdir: "{{ datum_gateway_source_dir }}"

- name: Install datum_gateway binary
  copy:
    src: "{{ datum_gateway_source_dir }}/datum_gateway"
    dest: "{{ datum_gateway_bin_path }}"
    remote_src: yes
    owner: root
    group: root
    mode: "0755"
  notify: Restart datum-gateway

# ===========================================
# Configuration