# ============================================================================
# Template Action - Comprehensive Examples
# ============================================================================
# Render templates with variables, conditionals, loops, and filters using Jinja2.
#
# Run this file:
#   mooncake run --config examples/actions/template.yml
# ============================================================================

# =============================================================================
# Setup: Create output directory
# =============================================================================

- name: "Setup: Create output directory"
  file:
    path: /tmp/mooncake-template-examples
    state: directory
    mode: "0755"
  tags: [setup]

# =============================================================================
# Basic Template Rendering
# =============================================================================

- vars:
    app_name: "MyApplication"
    version: "1.0.0"
    environment: "production"

- name: "Example 1: Render simple template"
  template:
    src: ./templates/simple-config.yml.j2
    dest: /tmp/mooncake-template-examples/config.yml
    mode: "0644"
  tags: [basics]

- name: "Example 2: Display rendered file"
  shell: cat /tmp/mooncake-template-examples/config.yml
  tags: [basics]

# =============================================================================
# Template with Additional Variables
# =============================================================================

- name: "Example 3: Render with additional vars"
  template:
    src: ./templates/simple-config.yml.j2
    dest: /tmp/mooncake-template-examples/config-dev.yml
    mode: "0644"
    vars:
      environment: "development"
      debug: true
  tags: [vars]

- name: "Example 4: Render nginx config"
  template:
    src: ./templates/nginx.conf.j2
    dest: /tmp/mooncake-template-examples/nginx.conf
    mode: "0644"
    vars:
      port: 80
      server_name: "example.com"
      document_root: "/var/www/html"
      enable_ssl: false
      log_dir: "/var/log/nginx"
  tags: [vars]

- name: "Example 5: Render nginx with SSL"
  template:
    src: ./templates/nginx.conf.j2
    dest: /tmp/mooncake-template-examples/nginx-ssl.conf
    mode: "0644"
    vars:
      port: 443
      server_name: "secure.example.com"
      document_root: "/var/www/secure"
      enable_ssl: true
      ssl_cert: "/etc/ssl/certs/server.crt"
      ssl_key: "/etc/ssl/private/server.key"
      log_dir: "/var/log/nginx"
  tags: [vars]

# =============================================================================
# Executable Script Templates
# =============================================================================

- name: "Example 6: Render executable script"
  template:
    src: ./templates/script.sh.j2
    dest: /tmp/mooncake-template-examples/deploy.sh
    mode: "0755"
    vars:
      deploy_commands:
        - "git pull origin main"
        - "npm install"
        - "npm run build"
        - "systemctl restart myapp"
  tags: [scripts]

- name: "Example 7: Execute generated script"
  shell: /tmp/mooncake-template-examples/deploy.sh
  tags: [scripts]

# =============================================================================
# Template with System Facts
# =============================================================================

- name: "Example 8: Create inline template with facts"
  file:
    path: /tmp/mooncake-template-examples/system-info.txt
    state: file
    content: |
      System Information
      ==================
      Operating System: {{ os }}
      Architecture: {{ arch }}
      Application: {{ app_name }}
      Version: {{ version }}
    mode: "0644"
  tags: [facts]

- name: "Example 9: Display system info file"
  shell: cat /tmp/mooncake-template-examples/system-info.txt
  tags: [facts]

# =============================================================================
# Templates with Loops
# =============================================================================

- vars:
    servers:
      - name: web-01
        ip: 192.168.1.10
        port: 8080
      - name: web-02
        ip: 192.168.1.11
        port: 8080
      - name: api-01
        ip: 192.168.1.20
        port: 3000

- name: "Example 10: Create hosts file template"
  file:
    path: /tmp/mooncake-template-examples/hosts
    state: file
    content: |
      # Auto-generated hosts file
      127.0.0.1   localhost

      # Application servers
      {% for server in servers %}
      {{ server.ip }}   {{ server.name }}
      {% endfor %}
    mode: "0644"
  tags: [loops]

- name: "Example 11: Display hosts file"
  shell: cat /tmp/mooncake-template-examples/hosts
  tags: [loops]

# =============================================================================
# Templates with Conditionals
# =============================================================================

- name: "Example 12: Template with OS-specific content"
  file:
    path: /tmp/mooncake-template-examples/os-specific.txt
    state: file
    content: |
      {% if os == "linux" %}
      Package manager: apt or yum
      Init system: systemd
      {% elif os == "darwin" %}
      Package manager: homebrew
      Init system: launchd
      {% else %}
      Unknown operating system
      {% endif %}

      Common path: /usr/local/bin
    mode: "0644"
  tags: [conditionals]

- name: "Example 13: Display OS-specific file"
  shell: cat /tmp/mooncake-template-examples/os-specific.txt
  tags: [conditionals]

# =============================================================================
# Systemd Service Template
# =============================================================================

- name: "Example 14: Render systemd service file"
  template:
    src: ./templates/systemd-service.j2
    dest: /tmp/mooncake-template-examples/myapp.service
    mode: "0644"
    vars:
      description: "My Application Service"
      service_type: "simple"
      user: "appuser"
      working_dir: "/opt/myapp"
      exec_start: "/opt/myapp/bin/server"
      exec_reload: "/bin/kill -HUP $MAINPID"
      restart_policy: "on-failure"
      restart_sec: "5s"
      environment:
        NODE_ENV: "production"
        PORT: "8080"
        LOG_LEVEL: "info"
  tags: [service]

- name: "Example 15: Display service file"
  shell: cat /tmp/mooncake-template-examples/myapp.service
  tags: [service]

# =============================================================================
# Templates in Loops
# =============================================================================

- vars:
    environments:
      - name: development
        debug: true
        port: 3000
      - name: staging
        debug: false
        port: 8080
      - name: production
        debug: false
        port: 80

- name: "Example 16: Generate config for each environment"
  file:
    path: /tmp/mooncake-template-examples/{{ item.name }}.conf
    state: file
    content: |
      [{{ item.name }}]
      environment={{ item.name }}
      debug={{ item.debug }}
      port={{ item.port }}
      app_name={{ app_name }}
    mode: "0644"
  with_items: "{{ environments }}"
  tags: [loops]

- name: "Example 17: List generated configs"
  shell: ls -la /tmp/mooncake-template-examples/*.conf
  tags: [loops]

# =============================================================================
# Complex Templates with Filters
# =============================================================================

- name: "Example 18: Template with string filters"
  file:
    path: /tmp/mooncake-template-examples/filters.txt
    state: file
    content: |
      Original: {{ app_name }}
      Uppercase: {{ app_name | upper }}
      Lowercase: {{ app_name | lower }}
      Title: {{ app_name | title }}

      Version string: "v{{ version }}"
      Left justified: "{{ app_name | ljust(20) }}"
      Right justified: "{{ app_name | rjust(20) }}"
    mode: "0644"
  tags: [filters]

- name: "Example 19: Display filters example"
  shell: cat /tmp/mooncake-template-examples/filters.txt
  tags: [filters]

# =============================================================================
# Real-World Application Configuration
# =============================================================================

- vars:
    database:
      host: "localhost"
      port: 5432
      name: "myapp_db"
      user: "dbuser"
    redis:
      host: "localhost"
      port: 6379
    features:
      - authentication
      - api
      - websockets
      - admin

- name: "Example 20: Complete application config"
  file:
    path: /tmp/mooncake-template-examples/app-config.yml
    state: file
    content: |
      application:
        name: {{ app_name }}
        version: {{ version }}
        environment: {{ environment }}

      server:
        port: 8080
        host: "0.0.0.0"

      database:
        host: {{ database.host }}
        port: {{ database.port }}
        name: {{ database.name }}
        user: {{ database.user }}

      redis:
        host: {{ redis.host }}
        port: {{ redis.port }}

      features:
      {% for feature in features %}
        - {{ feature }}
      {% endfor %}

      logging:
        level: {% if environment == "production" %}info{% else %}debug{% endif %}
        file: /var/log/{{ app_name }}/app.log
    mode: "0644"
  tags: [real-world]

- name: "Example 21: Display complete config"
  shell: cat /tmp/mooncake-template-examples/app-config.yml
  tags: [real-world]

# =============================================================================
# Docker Compose Template
# =============================================================================

- name: "Example 22: Generate docker-compose.yml"
  file:
    path: /tmp/mooncake-template-examples/docker-compose.yml
    state: file
    content: |
      version: '3.8'

      services:
        app:
          image: {{ app_name }}:{{ version }}
          ports:
            - "8080:8080"
          environment:
            - NODE_ENV={{ environment }}
            - DB_HOST={{ database.host }}
            - DB_PORT={{ database.port }}
            - DB_NAME={{ database.name }}
          depends_on:
            - db
            - redis

        db:
          image: postgres:15
          environment:
            - POSTGRES_DB={{ database.name }}
            - POSTGRES_USER={{ database.user }}
          ports:
            - "{{ database.port }}:5432"

        redis:
          image: redis:7
          ports:
            - "{{ redis.port }}:6379"
    mode: "0644"
  tags: [docker]

- name: "Example 23: Display docker-compose.yml"
  shell: cat /tmp/mooncake-template-examples/docker-compose.yml
  tags: [docker]

# =============================================================================
# Template Permissions
# =============================================================================

- name: "Example 24: Render read-only config"
  file:
    path: /tmp/mooncake-template-examples/readonly-config.yml
    state: file
    content: |
      # Read-only configuration
      app: {{ app_name }}
      version: {{ version }}
    mode: "0444"
  tags: [permissions]

- name: "Example 25: Render private config"
  file:
    path: /tmp/mooncake-template-examples/private-config.yml
    state: file
    content: |
      # Private configuration
      api_key: "secret-key-here"
      db_password: "secure-password"
    mode: "0600"
  tags: [permissions]

# =============================================================================
# Verification
# =============================================================================

- name: "Example 26: List all generated files"
  shell: |
    echo "Generated template files:"
    ls -lh /tmp/mooncake-template-examples/
  tags: [verify]

- name: "Example 27: Count generated files"
  shell: |
    count=$(find /tmp/mooncake-template-examples -type f | wc -l)
    echo "Total files generated: $count"
  tags: [verify]

# =============================================================================
# Cleanup
# =============================================================================

- name: "Cleanup: Remove example files"
  file:
    path: /tmp/mooncake-template-examples
    state: absent
    force: true
  tags: [cleanup]

- name: "Summary"
  print: |

    Template action examples completed!
    Explored template rendering including:
      • Basic template rendering
      • Variables and facts
      • Loops and conditionals
      • Filters
      • Executable scripts
      • System service files
      • Docker configs
      • Permission management

  tags: [always]