name: build-and-release

on:
  push:
    branches:
      - main
      - high-performance

concurrency:
  group: ai-assistant-build-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: self-hosted
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Docker Buildx
        run: |
          set -euo pipefail
          docker version
          docker buildx create --use --name nxtgauge-builder || docker buildx use nxtgauge-builder
          docker buildx inspect --bootstrap

      - name: Login to registry
        env:
          REGISTRY_HOSTPORT: ${{ secrets.REGISTRY_HOSTPORT }}
          REGISTRY_USERNAME: ${{ secrets.REGISTRY_USERNAME }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
        run: |
          set -euo pipefail
          test -n "$REGISTRY_HOSTPORT"
          printf '%s' "$REGISTRY_PASSWORD" | docker login "$REGISTRY_HOSTPORT" -u "$REGISTRY_USERNAME" --password-stdin

      - name: Build and push image
        env:
          REGISTRY_HOSTPORT: ${{ secrets.REGISTRY_HOSTPORT }}
          SHA: ${{ github.sha }}
        run: |
          set -euo pipefail
          metadata_file="/tmp/ai-assistant-metadata.json"
          image_ref="$REGISTRY_HOSTPORT/nxtgauge-ai-assistant:$SHA"

          docker buildx build --push \
            --metadata-file "$metadata_file" \
            -f Dockerfile \
            -t "$image_ref" \
            .

          digest="$(grep -o '"containerimage.digest":"sha256:[^"]*"' "$metadata_file" | cut -d'"' -f4)"
          test -n "$digest"
          printf '%s@%s\n' "$REGISTRY_HOSTPORT/nxtgauge-ai-assistant" "$digest" > /tmp/ai-assistant-image-ref.txt

      - name: Prune old SHA tags
        if: success()
        continue-on-error: true
        env:
          REGISTRY_HOST: ${{ secrets.REGISTRY_HOSTPORT }}
          REGISTRY_USERNAME: ${{ secrets.REGISTRY_USERNAME }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
        run: |
          set -euo pipefail
          python3 .forgejo/scripts/registry_prune.py \
            --registry "$REGISTRY_HOST" \
            --repo "nxtgauge-ai-assistant" \
            --username "$REGISTRY_USERNAME" \
            --password "$REGISTRY_PASSWORD" \
            --keep 2

      - name: Update GitOps release
        env:
          GITEOPS_REPO: ${{ secrets.GITEOPS_REPO }}
          GITEOPS_SSH_KEY: ${{ secrets.GITEOPS_SSH_KEY }}
          SHA: ${{ github.sha }}
        run: |
          set -euo pipefail
          test -n "$GITEOPS_REPO"
          test -n "$GITEOPS_SSH_KEY"

          mkdir -p ~/.ssh
          printf '%s\n' "$GITEOPS_SSH_KEY" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          ssh-keyscan github.com >> ~/.ssh/known_hosts 2>/dev/null

          GITEOPS_DIR=$(mktemp -d)
          git clone "$GITEOPS_REPO" "$GITEOPS_DIR"
          cd "$GITEOPS_DIR"

          image_ref="$(cat /tmp/ai-assistant-image-ref.txt)"
          ./scripts/set-app-release.sh ai-assistant "$image_ref"

          if git diff --quiet; then
            echo "GitOps repo already up to date."
            exit 0
          fi

          git config user.name "forgejo-actions[bot]"
          git config user.email "forgejo-actions@ci.nxtgauge.com"
          git add apps scripts/set-app-release.sh
          git commit -m "chore(gitops): deploy ai-assistant@${SHA}"
          git push