---
on:
  push:
  workflow_dispatch:

name: Docker Test

permissions:
  contents: read

jobs:
  docker-test:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        os:
          - name: ubuntu-18.04
            image: ubuntu:18.04
          - name: ubuntu-20.04
            image: ubuntu:20.04
          - name: ubuntu-22.04
            image: ubuntu:22.04
          - name: ubuntu-24.04
            image: ubuntu:24.04
          - name: debian-11
            image: debian:11
          - name: debian-12
            image: debian:12
          - name: centos-stream-9
            image: quay.io/centos/centos:stream9
          - name: fedora-40
            image: fedora:40
          - name: fedora-41
            image: fedora:41
          - name: rocky-8
            image: rockylinux:8
          - name: rocky-9
            image: rockylinux:9
          - name: almalinux-8
            image: almalinux:8
          - name: almalinux-9
            image: almalinux:9
          - name: archlinux
            image: archlinux:latest
          - name: oraclelinux-8
            image: oraclelinux:8
          - name: oraclelinux-9
            image: oraclelinux:9
          - name: amazonlinux-2
            image: amazonlinux:2
          - name: amazonlinux-2023
            image: amazonlinux:2023

    name: ${{ matrix.os.name }}
    steps:
      - uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build server image
        run: |
          docker build \
            --build-arg BASE_IMAGE=${{ matrix.os.image }} \
            -t openvpn-server \
            -f test/Dockerfile.server .

      - name: Build client image
        run: docker build -t openvpn-client -f test/Dockerfile.client .

      - name: Create Docker network
        run: docker network create --subnet=172.28.0.0/24 vpn-test

      - name: Create shared volume
        run: docker volume create shared-config

      - name: Start OpenVPN server
        run: |
          docker run -d \
            --name openvpn-server \
            --hostname openvpn-server \
            --cap-add=NET_ADMIN \
            --device=/dev/net/tun:/dev/net/tun \
            --sysctl net.ipv4.ip_forward=1 \
            --network vpn-test \
            --ip 172.28.0.10 \
            -v shared-config:/shared \
            openvpn-server

      - name: Wait for server installation and startup
        run: |
          echo "Waiting for OpenVPN server to install and start..."
          for i in {1..60}; do
            if docker exec openvpn-server pgrep openvpn > /dev/null 2>&1; then
              echo "OpenVPN server is running!"
              break
            fi
            echo "Waiting... ($i/60)"
            sleep 5
            # Show logs for debugging
            docker logs --tail 20 openvpn-server 2>&1 || true
          done

          # Final check
          if ! docker exec openvpn-server pgrep openvpn > /dev/null 2>&1; then
            echo "ERROR: OpenVPN server failed to start"
            docker logs openvpn-server
            exit 1
          fi

      - name: Verify client config was generated
        run: |
          docker run --rm -v shared-config:/shared alpine \
            ls -la /shared/
          docker run --rm -v shared-config:/shared alpine \
            cat /shared/client.ovpn

      - name: Start OpenVPN client and run tests
        run: |
          docker run \
            --name openvpn-client \
            --hostname openvpn-client \
            --cap-add=NET_ADMIN \
            --device=/dev/net/tun:/dev/net/tun \
            --network vpn-test \
            --ip 172.28.0.20 \
            -v shared-config:/shared:ro \
            openvpn-client &

          # Wait for tests to complete (look for success message)
          for i in {1..60}; do
            if docker logs openvpn-client 2>&1 | grep -q "ALL TESTS PASSED"
            then
              echo "Tests passed!"
              exit 0
            fi
            if docker logs openvpn-client 2>&1 | grep -q "FAIL:"; then
              echo "Tests failed!"
              docker logs openvpn-client
              exit 1
            fi
            echo "Waiting for tests... ($i/60)"
            sleep 2
          done

          echo "Timeout waiting for tests"
          docker logs openvpn-client
          exit 1

      - name: Show server logs
        if: always()
        run: docker logs openvpn-server 2>&1 || true

      - name: Show client logs
        if: always()
        run: docker logs openvpn-client 2>&1 || true

      - name: Cleanup
        if: always()
        run: |
          docker stop openvpn-server openvpn-client 2>/dev/null || true
          docker rm openvpn-server openvpn-client 2>/dev/null || true
          docker network rm vpn-test 2>/dev/null || true
          docker volume rm shared-config 2>/dev/null || true