---
# Ansible playbook for post-VM configuration
# Works on both local KVM/QEMU VMs and production OVH instances

- name: Configure YDN VPS
  hosts: all
  become: yes
  gather_facts: yes

  vars:
    app_user: "ydn"
    app_dir: "/opt/ydn"
    docker_compose_version: "2.23.0"
    cloudron_domain: "{{ ansible_default_ipv4.address }}.nip.io"

  handlers:
    - name: Restart Docker
      service:
        name: docker
        state: restarted

    - name: Restart Nginx
      service:
        name: nginx
        state: restarted

  tasks:
    # System Hardening
    - name: Update system packages
      apt:
        update_cache: yes
        upgrade: dist
        cache_valid_time: 3600

    - name: Install system dependencies
      apt:
        name:
          - curl
          - wget
          - git
          - vim
          - ufw
          - fail2ban
          - htop
          - python3-pip
        state: present

    - name: Configure firewall
      ufw:
        rule: allow
        name: OpenSSH
        state: enabled

    - name: Allow HTTP/HTTPS
      ufw:
        rule: allow
        port: "{{ item }}"
        proto: tcp
      loop:
        - "80"
        - "443"
        - "8080"

    - name: Set timezone to UTC
      timezone:
        name: UTC

    # User Management
    - name: Create application user
      user:
        name: "{{ app_user }}"
        shell: /bin/bash
        home: "/home/{{ app_user }}"
        create_home: yes

    - name: Add sudo privileges for app user
      lineinfile:
        path: /etc/sudoers.d/{{ app_user }}
        line: "{{ app_user }} ALL=(ALL) NOPASSWD: ALL"
        create: yes
        mode: '0440'
        validate: 'visudo -cf %s'

    # Docker Installation
    - name: Add Docker GPG key
      apt_key:
        url: https://download.docker.com/linux/debian/gpg
        state: present

    - name: Add Docker repository
      apt_repository:
        repo: deb [arch=amd64] https://download.docker.com/linux/debian {{ ansible_distribution_release }} stable
        state: present

    - name: Install Docker
      apt:
        name:
          - docker-ce
          - docker-ce-cli
          - containerd.io
          - docker-compose-plugin
        state: present
        update_cache: yes
      notify: Restart Docker

    - name: Add app user to docker group
      user:
        name: "{{ app_user }}"
        groups: docker
        append: yes

    - name: Enable and start Docker
      service:
        name: docker
        enabled: yes
        state: started

    # Docker Compose Installation
    - name: Install Docker Compose
      get_url:
        url: "https://github.com/docker/compose/releases/download/v{{ docker_compose_version }}/docker-compose-linux-x86_64"
        dest: /usr/local/bin/docker-compose
        mode: '0755'

    # Cloudron Installation
    - name: Check if Cloudron is installed
      stat:
        path: /etc/cloudron/cloudron.conf
      register: cloudron_installed

    - name: Install Cloudron
      shell: |
        curl -sSL https://get.cloudron.io | bash
      args:
        warn: false
      when: not cloudron_installed.stat.exists

    # Application Setup
    - name: Create application directory
      file:
        path: "{{ app_dir }}"
        state: directory
        owner: "{{ app_user }}"
        group: "{{ app_user }}"
        mode: '0755'

    - name: Create logs directory
      file:
        path: /var/log/ydn
        state: directory
        owner: "{{ app_user }}"
        group: "{{ app_user }}"
        mode: '0755'

    # Security Hardening
    - name: Configure fail2ban
      template:
        src: ../templates/fail2ban.local.j2
        dest: /etc/fail2ban/jail.local
        owner: root
        group: root
        mode: '0644'
      notify: Restart fail2ban

    - name: Enable fail2ban
      service:
        name: fail2ban
        enabled: yes
        state: started

    # Monitoring Setup
    - name: Install monitoring agents
      apt:
        name:
          - prometheus-node-exporter
        state: present

    - name: Enable node exporter
      service:
        name: prometheus-node-exporter
        enabled: yes
        state: started

    # Final Cleanup
    - name: Clean apt cache
      apt:
        autoclean: yes
        autoremove: yes

    - name: Display completion message
      debug:
        msg: |
          VPS configuration complete!
          IP Address: {{ ansible_default_ipv4.address }}
          SSH User: {{ app_user }}
          Docker Version: {{ docker_version.stdout }}