---
# Minikube installation and cluster setup for indri
# Uses docker driver - requires Docker Desktop to be installed manually first
# (Docker Desktop requires GUI setup, so it's not automated in this role)
#
# Prerequisites:
#   1. Install Docker Desktop: brew install --cask docker
#   2. Launch Docker Desktop and complete setup wizard
#   3. Configure Docker Desktop with at least 12GB memory
#
# NOTE: minikube start may have issues when run via SSH.
# If cluster fails to start, manually run on indri:
#   minikube start --driver=docker --container-runtime=docker \
#     --cpus=6 --memory=11264 --disk-size=200g \
#     --apiserver-names=k8s.tail8d86e.ts.net --apiserver-names=indri \
#     --apiserver-port=6443 --listen-address=0.0.0.0

- name: Install minikube via homebrew
  community.general.homebrew:
    name: minikube
    state: present

- name: Install kubectl via homebrew
  community.general.homebrew:
    name: kubectl
    state: present

- name: Check if Docker is running
  ansible.builtin.command:
    cmd: docker info
  register: minikube_docker_status
  changed_when: false
  failed_when: false

- name: Warn if Docker is not running
  ansible.builtin.debug:
    msg: "WARNING: Docker does not appear to be running. Please start Docker Desktop manually."
  when: minikube_docker_status.rc != 0

- name: Check if minikube cluster exists
  ansible.builtin.command:
    cmd: minikube status --format={% raw %}'{{.Host}}'{% endraw %}
  register: minikube_status
  changed_when: false
  failed_when: false

- name: Start minikube cluster
  ansible.builtin.command:
    cmd: >
      minikube start
      --driver={{ minikube_driver }}
      --container-runtime={{ minikube_container_runtime }}
      --cpus={{ minikube_cpus }}
      --memory={{ minikube_memory }}
      --disk-size={{ minikube_disk_size }}
      {% for name in minikube_apiserver_names %}
      --apiserver-names={{ name }}
      {% endfor %}
      --apiserver-port={{ minikube_apiserver_port }}
      --listen-address={{ minikube_listen_address }}
  register: minikube_start
  changed_when: minikube_start.rc == 0
  failed_when: false  # Don't fail - may need manual intervention
  when:
    - minikube_docker_status.rc == 0
    - minikube_status.rc != 0 or 'Running' not in minikube_status.stdout

- name: Check minikube status after start attempt
  ansible.builtin.command:
    cmd: minikube status --format={% raw %}'{{.Host}}'{% endraw %}
  register: minikube_final_status
  changed_when: false
  failed_when: false

- name: Warn if minikube failed to start
  ansible.builtin.debug:
    msg: "WARNING: minikube may not have started properly. Run 'minikube start' manually on indri if needed. Status: {{ minikube_final_status.stdout | default('unknown') }}"
  when: minikube_final_status.rc != 0 or 'Running' not in minikube_final_status.stdout

# Configure containerd to use zot registry as pull-through cache
# With docker driver, use host.minikube.internal to reach the host
# Zot runs on indri:5050 and caches images from docker.io, ghcr.io, quay.io

- name: Create containerd registry mirror directories
  ansible.builtin.command:
    cmd: minikube ssh --native-ssh=false "sudo mkdir -p /etc/containerd/certs.d/{{ item }}"
  loop:
    - registry.tail8d86e.ts.net
    - docker.io
    - ghcr.io
    - quay.io
  changed_when: false
  when: minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout

# Private registry (registry.tail8d86e.ts.net) - direct to zot
- name: Check registry.tail8d86e.ts.net config
  ansible.builtin.command:
    cmd: minikube ssh --native-ssh=false "cat /etc/containerd/certs.d/registry.tail8d86e.ts.net/hosts.toml 2>/dev/null || echo ''"
  register: minikube_registry_config
  changed_when: false
  when: minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout

- name: Configure registry.tail8d86e.ts.net mirror
  ansible.builtin.command:
    cmd: |
      minikube ssh --native-ssh=false 'echo "server = \"http://host.minikube.internal:5050\"

      [host.\"http://host.minikube.internal:5050\"]
        capabilities = [\"pull\", \"resolve\", \"push\"]
        skip_verify = true" | sudo tee /etc/containerd/certs.d/registry.tail8d86e.ts.net/hosts.toml'
  changed_when: true
  when:
    - minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout
    - "'host.minikube.internal:5050' not in minikube_registry_config.stdout"
  notify: Restart containerd in minikube

# Docker Hub (docker.io) - zot pull-through cache
- name: Check docker.io config
  ansible.builtin.command:
    cmd: minikube ssh --native-ssh=false "cat /etc/containerd/certs.d/docker.io/hosts.toml 2>/dev/null || echo ''"
  register: minikube_dockerio_config
  changed_when: false
  when: minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout

- name: Configure docker.io mirror through zot
  ansible.builtin.command:
    cmd: |
      minikube ssh --native-ssh=false 'echo "server = \"https://registry-1.docker.io\"

      [host.\"http://host.minikube.internal:5050\"]
        capabilities = [\"pull\", \"resolve\"]
        skip_verify = true" | sudo tee /etc/containerd/certs.d/docker.io/hosts.toml'
  changed_when: true
  when:
    - minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout
    - "'host.minikube.internal:5050' not in minikube_dockerio_config.stdout"
  notify: Restart containerd in minikube

# GitHub Container Registry (ghcr.io) - zot pull-through cache
- name: Check ghcr.io config
  ansible.builtin.command:
    cmd: minikube ssh --native-ssh=false "cat /etc/containerd/certs.d/ghcr.io/hosts.toml 2>/dev/null || echo ''"
  register: minikube_ghcr_config
  changed_when: false
  when: minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout

- name: Configure ghcr.io mirror through zot
  ansible.builtin.command:
    cmd: |
      minikube ssh --native-ssh=false 'echo "server = \"https://ghcr.io\"

      [host.\"http://host.minikube.internal:5050\"]
        capabilities = [\"pull\", \"resolve\"]
        skip_verify = true" | sudo tee /etc/containerd/certs.d/ghcr.io/hosts.toml'
  changed_when: true
  when:
    - minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout
    - "'host.minikube.internal:5050' not in minikube_ghcr_config.stdout"
  notify: Restart containerd in minikube

# Quay.io - zot pull-through cache
- name: Check quay.io config
  ansible.builtin.command:
    cmd: minikube ssh --native-ssh=false "cat /etc/containerd/certs.d/quay.io/hosts.toml 2>/dev/null || echo ''"
  register: minikube_quay_config
  changed_when: false
  when: minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout

- name: Configure quay.io mirror through zot
  ansible.builtin.command:
    cmd: |
      minikube ssh --native-ssh=false 'echo "server = \"https://quay.io\"

      [host.\"http://host.minikube.internal:5050\"]
        capabilities = [\"pull\", \"resolve\"]
        skip_verify = true" | sudo tee /etc/containerd/certs.d/quay.io/hosts.toml'
  changed_when: true
  when:
    - minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout
    - "'host.minikube.internal:5050' not in minikube_quay_config.stdout"
  notify: Restart containerd in minikube

# Configure Tailscale serve for k8s API access
# With docker driver, the API server port is dynamic (not fixed at 6443)
# We query the current port and configure tailscale serve accordingly
- name: Get minikube API server URL
  ansible.builtin.command:
    cmd: kubectl config view --minify -o jsonpath="{.clusters[0].cluster.server}"
  register: minikube_api_url
  changed_when: false
  when: minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout

- name: Extract API server port from URL
  ansible.builtin.set_fact:
    minikube_api_port: "{{ minikube_api_url.stdout | regex_search(':([0-9]+)$', '\\1') | first }}"
  when:
    - minikube_final_status.rc == 0 and 'Running' in minikube_final_status.stdout
    - minikube_api_url.stdout is defined

- name: Check current tailscale serve config for k8s
  ansible.builtin.command:
    cmd: tailscale serve status --json
  register: minikube_tailscale_serve_status
  changed_when: false
  when: minikube_api_port is defined

- name: Parse tailscale serve k8s config
  ansible.builtin.set_fact:
    minikube_tailscale_k8s_tcp: "{{ ((minikube_tailscale_serve_status.stdout | from_json).Services['svc:k8s'].TCP['443'].TCPForward | default('')) }}"
  when:
    - minikube_api_port is defined
    - minikube_tailscale_serve_status.stdout is defined
    - "'svc:k8s' in (minikube_tailscale_serve_status.stdout | from_json).Services | default({})"
  failed_when: false

- name: Configure tailscale serve for k8s API
  ansible.builtin.command:
    cmd: tailscale serve --service="svc:k8s" --tcp=443 tcp://localhost:{{ minikube_api_port }}
  when:
    - minikube_api_port is defined
    - minikube_tailscale_k8s_tcp is not defined or minikube_tailscale_k8s_tcp != 'localhost:' + minikube_api_port
  changed_when: true