---
# Base role: OS updates, essential packages, Python/Miniconda
- name: Update apt cache
  apt:
    update_cache: yes
    cache_valid_time: 3600

- name: Upgrade all packages
  apt:
    upgrade: dist
    autoremove: yes

- name: Install essential system packages
  apt:
    name:
      - curl
      - wget
      - git
      - build-essential
      - ca-certificates
      - gnupg
      - lsb-release
      - software-properties-common
      - unzip
      - htop
      - net-tools
      - jq
      - python3-pip
      - python3-venv
    state: present

- name: Create cezen user
  user:
    name: cezen
    shell: /bin/bash
    home: /opt/cezen
    create_home: yes
    groups: sudo
    append: yes

- name: Create cezen directories
  file:
    path: "{{ item }}"
    state: directory
    owner: cezen
    group: cezen
    mode: "0755"
  loop:
    - /opt/cezen
    - /opt/cezen/models
    - /opt/cezen/data
    - /opt/cezen/logs

- name: Download Miniconda
  get_url:
    url: https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh
    dest: /tmp/miniconda.sh
    mode: "0755"
  retries: 3
  delay: 10

- name: Install Miniconda
  become_user: cezen
  command: bash /tmp/miniconda.sh -b -p /opt/cezen/miniconda
  args:
    creates: /opt/cezen/miniconda/bin/conda

- name: Add conda to cezen PATH
  lineinfile:
    path: /opt/cezen/.bashrc
    line: 'export PATH="/opt/cezen/miniconda/bin:$PATH"'
    create: yes
    owner: cezen

- name: Create cezen conda environment (Python 3.11)
  become_user: cezen
  command: /opt/cezen/miniconda/bin/conda create -n cezen python=3.11 -y
  args:
    creates: /opt/cezen/miniconda/envs/cezen

- name: Install LangChain + LlamaIndex + HuggingFace in conda env
  become_user: cezen
  shell: |
    /opt/cezen/miniconda/bin/conda run -n cezen pip install \
      langchain langchain-community llama-index \
      transformers huggingface-hub \
      peft bitsandbytes accelerate \
      fastapi uvicorn[standard] \
      sentence-transformers
  retries: 3
  delay: 15