# Forgejo Actions: test, build/push image, deploy to production (same host as Elektrine).
# Secrets: DEPLOY_SSH_KEY, DEPLOY_SSH_HOST_KEY, REGISTRY_USER, REGISTRY_TOKEN
name: CI and deploy

on:
  push:
    branches: [main]
  pull_request:
  workflow_dispatch:

concurrency:
  group: haraka-${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: false

env:
  REGISTRY: git.elektrine.com
  IMAGE_NAME: elektrine/elektrine-haraka

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    steps:
      - uses: https://data.forgejo.org/actions/checkout@v4

      - name: Run unit tests
        run: |
          set -euo pipefail
          case "$GITHUB_WORKSPACE" in
            /data/*) HOST_WORKSPACE="/opt/forgejo-runner/data${GITHUB_WORKSPACE#/data}" ;;
            *) HOST_WORKSPACE="$GITHUB_WORKSPACE" ;;
          esac
          test -f "$GITHUB_WORKSPACE/package.json"
          docker run --rm --network host \
            --volume "$HOST_WORKSPACE:/app" \
            --workdir /app \
            node:20-bookworm \
            bash -lc 'npm ci && npm test'

  build_and_deploy:
    name: Build, push, and deploy
    needs: test
    if: >-
      github.ref == 'refs/heads/main' &&
      github.event_name != 'pull_request'
    runs-on: ubuntu-latest
    env:
      DEPLOY_HOST: ${{ vars.DEPLOY_HOST || 'elektrine.com' }}
      DEPLOY_USER: ${{ vars.DEPLOY_USER || 'elektrine-deploy' }}
      DEPLOY_PORT: ${{ vars.DEPLOY_PORT || '22' }}
      DEPLOY_PATH: ${{ vars.DEPLOY_PATH || '/opt/elektrine-haraka' }}
      IMAGE: git.elektrine.com/elektrine/elektrine-haraka:${{ github.sha }}
      IMAGE_LATEST: git.elektrine.com/elektrine/elektrine-haraka:latest
    steps:
      - uses: https://data.forgejo.org/actions/checkout@v4

      - name: Log in to Forgejo registry
        env:
          REG_USER: ${{ secrets.REGISTRY_USER }}
          REG_PASS: ${{ secrets.REGISTRY_TOKEN }}
        run: |
          set -euo pipefail
          echo "$REG_PASS" | docker login "$REGISTRY" -u "$REG_USER" --password-stdin

      - name: Build and push image
        run: |
          set -euo pipefail
          docker build -t "$IMAGE" -t "$IMAGE_LATEST" .
          docker push "$IMAGE"
          docker push "$IMAGE_LATEST"
          echo "Pushed $IMAGE"

      - name: Configure SSH
        env:
          DEPLOY_SSH_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
          DEPLOY_SSH_HOST_KEY: ${{ secrets.DEPLOY_SSH_HOST_KEY || '66.42.127.87 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM5Vx8UDcqvgmBwDs5SlCHd8/oGDoQytGHhbbp4LNK4o' }}
        run: |
          set -euo pipefail
          install -d -m 0700 ~/.ssh
          printf '%s\n' "$DEPLOY_SSH_KEY" | sed 's/\r$//' | sed 's/\\n/\n/g' > ~/.ssh/id_ed25519
          chmod 0600 ~/.ssh/id_ed25519
          : > ~/.ssh/known_hosts
          printf '%s\n' "$DEPLOY_SSH_HOST_KEY" | sed 's/\r$//' | sed 's/\\n/\n/g' >> ~/.ssh/known_hosts
          ssh-keyscan -p "$DEPLOY_PORT" -T 5 -t ed25519,rsa "$DEPLOY_HOST" 2>/dev/null >> ~/.ssh/known_hosts || true
          ip=$(getent ahostsv4 "$DEPLOY_HOST" 2>/dev/null | awk '{print $1; exit}' || true)
          if [ -n "${ip:-}" ]; then
            ssh-keyscan -p "$DEPLOY_PORT" -T 5 -t ed25519,rsa "$ip" 2>/dev/null >> ~/.ssh/known_hosts || true
          fi
          chmod 0600 ~/.ssh/known_hosts
          ssh -p "$DEPLOY_PORT" \
            -i "$HOME/.ssh/id_ed25519" \
            -o BatchMode=yes -o IdentitiesOnly=yes \
            -o StrictHostKeyChecking=yes \
            -o UserKnownHostsFile="$HOME/.ssh/known_hosts" \
            "$DEPLOY_USER@$DEPLOY_HOST" 'echo ssh_ok; hostname'

      - name: Deploy over SSH
        env:
          REG_USER: ${{ secrets.REGISTRY_USER }}
          REG_PASS: ${{ secrets.REGISTRY_TOKEN }}
          GITHUB_SHA: ${{ github.sha }}
        run: |
          set -euo pipefail
          ssh -p "$DEPLOY_PORT" \
            -i "$HOME/.ssh/id_ed25519" \
            -o BatchMode=yes -o IdentitiesOnly=yes \
            -o StrictHostKeyChecking=yes \
            -o UserKnownHostsFile="$HOME/.ssh/known_hosts" \
            "$DEPLOY_USER@$DEPLOY_HOST" bash -s <<EOF
          set -euo pipefail
          DEPLOY_PATH="$DEPLOY_PATH"
          IMAGE="$IMAGE"
          IMAGE_LATEST="$IMAGE_LATEST"
          REG_USER="$REG_USER"
          REG_PASS="$REG_PASS"
          SHA="$GITHUB_SHA"

          echo "\$REG_PASS" | docker login git.elektrine.com -u "\$REG_USER" --password-stdin
          docker pull "\$IMAGE"
          docker tag "\$IMAGE" "\$IMAGE_LATEST"

          # Persist image preference when writable; always override for this roll-out.
          ENV_FILE="\$DEPLOY_PATH/deployment/.env"
          if [ -w "\$ENV_FILE" ]; then
            if grep -q '^HARAKA_IMAGE=' "\$ENV_FILE"; then
              sed -i 's|^HARAKA_IMAGE=.*|HARAKA_IMAGE=git.elektrine.com/elektrine/elektrine-haraka|' "\$ENV_FILE"
            else
              echo 'HARAKA_IMAGE=git.elektrine.com/elektrine/elektrine-haraka' >> "\$ENV_FILE"
            fi
            if grep -q '^HARAKA_IMAGE_TAG=' "\$ENV_FILE"; then
              sed -i "s|^HARAKA_IMAGE_TAG=.*|HARAKA_IMAGE_TAG=\$SHA|" "\$ENV_FILE"
            else
              echo "HARAKA_IMAGE_TAG=\$SHA" >> "\$ENV_FILE"
            fi
          else
            echo "Warn: \$ENV_FILE not writable; using env overrides for this deploy"
          fi

          cd "\$DEPLOY_PATH/deployment"
          export HARAKA_IMAGE=git.elektrine.com/elektrine/elektrine-haraka
          export HARAKA_IMAGE_TAG="\$SHA"
          COMPOSE="docker compose --env-file .env -f docker-compose.same-server.yml"
          \$COMPOSE pull haraka-inbound haraka-submission haraka-outbound haraka-worker || true
          \$COMPOSE up -d haraka-inbound haraka-submission haraka-outbound haraka-worker
          \$COMPOSE ps
          docker ps --format 'table {{.Names}}\t{{.Status}}\t{{.Image}}' | grep -i haraka || true
          echo DEPLOY_OK
          EOF