name: CI

on:
  push:
    branches: [main, staging]
  pull_request:
    branches: [main, staging]

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

jobs:
  test-build:
    name: Test and Build
    uses: ./.github/workflows/test-build.yml
    secrets: inherit

  # Detect if this is a version release commit (e.g., "v0.5.24: ...")
  detect-version:
    name: Detect Version
    runs-on: blacksmith-4vcpu-ubuntu-2404
    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/staging')
    outputs:
      version: ${{ steps.extract.outputs.version }}
      is_release: ${{ steps.extract.outputs.is_release }}
    steps:
      - name: Extract version from commit message
        id: extract
        run: |
          COMMIT_MSG="${{ github.event.head_commit.message }}"
          # Only tag versions on main branch
          if [ "${{ github.ref }}" = "refs/heads/main" ] && [[ "$COMMIT_MSG" =~ ^(v[0-9]+\.[0-9]+\.[0-9]+): ]]; then
            VERSION="${BASH_REMATCH[1]}"
            echo "version=${VERSION}" >> $GITHUB_OUTPUT
            echo "is_release=true" >> $GITHUB_OUTPUT
            echo "✅ Detected release commit: ${VERSION}"
          else
            echo "version=" >> $GITHUB_OUTPUT
            echo "is_release=false" >> $GITHUB_OUTPUT
            echo "ℹ️ Not a release commit"
          fi

  # Build AMD64 images and push to ECR immediately (+ GHCR for main)
  build-amd64:
    name: Build AMD64
    needs: [test-build, detect-version]
    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/staging')
    runs-on: blacksmith-8vcpu-ubuntu-2404
    permissions:
      contents: read
      packages: write
      id-token: write
    strategy:
      fail-fast: false
      matrix:
        include:
          - dockerfile: ./docker/app.Dockerfile
            ghcr_image: ghcr.io/simstudioai/simstudio
            ecr_repo_secret: ECR_APP
          - dockerfile: ./docker/db.Dockerfile
            ghcr_image: ghcr.io/simstudioai/migrations
            ecr_repo_secret: ECR_MIGRATIONS
          - dockerfile: ./docker/realtime.Dockerfile
            ghcr_image: ghcr.io/simstudioai/realtime
            ecr_repo_secret: ECR_REALTIME
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v4
        with:
          role-to-assume: ${{ github.ref == 'refs/heads/main' && secrets.AWS_ROLE_TO_ASSUME || secrets.STAGING_AWS_ROLE_TO_ASSUME }}
          aws-region: ${{ github.ref == 'refs/heads/main' && secrets.AWS_REGION || secrets.STAGING_AWS_REGION }}

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v2

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Login to GHCR
        if: github.ref == 'refs/heads/main'
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: useblacksmith/setup-docker-builder@v1

      - name: Generate tags
        id: meta
        run: |
          ECR_REGISTRY="${{ steps.login-ecr.outputs.registry }}"
          ECR_REPO="${{ secrets[matrix.ecr_repo_secret] }}"
          GHCR_IMAGE="${{ matrix.ghcr_image }}"

          # ECR tags (always build for ECR)
          if [ "${{ github.ref }}" = "refs/heads/main" ]; then
            ECR_TAG="latest"
          else
            ECR_TAG="staging"
          fi
          ECR_IMAGE="${ECR_REGISTRY}/${ECR_REPO}:${ECR_TAG}"

          # Build tags list
          TAGS="${ECR_IMAGE}"

          # Add GHCR tags only for main branch
          if [ "${{ github.ref }}" = "refs/heads/main" ]; then
            GHCR_AMD64="${GHCR_IMAGE}:latest-amd64"
            GHCR_SHA="${GHCR_IMAGE}:${{ github.sha }}-amd64"
            TAGS="${TAGS},$GHCR_AMD64,$GHCR_SHA"

            # Add version tag if this is a release commit
            if [ "${{ needs.detect-version.outputs.is_release }}" = "true" ]; then
              VERSION="${{ needs.detect-version.outputs.version }}"
              GHCR_VERSION="${GHCR_IMAGE}:${VERSION}-amd64"
              TAGS="${TAGS},$GHCR_VERSION"
              echo "📦 Adding version tag: ${VERSION}-amd64"
            fi
          fi

          echo "tags=${TAGS}" >> $GITHUB_OUTPUT

      - name: Build and push images
        uses: useblacksmith/build-push-action@v2
        with:
          context: .
          file: ${{ matrix.dockerfile }}
          platforms: linux/amd64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          provenance: false
          sbom: false

  # Build ARM64 images for GHCR (main branch only, runs in parallel)
  build-ghcr-arm64:
    name: Build ARM64 (GHCR Only)
    needs: [test-build, detect-version]
    runs-on: blacksmith-8vcpu-ubuntu-2404-arm
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    permissions:
      contents: read
      packages: write
    strategy:
      fail-fast: false
      matrix:
        include:
          - dockerfile: ./docker/app.Dockerfile
            image: ghcr.io/simstudioai/simstudio
          - dockerfile: ./docker/db.Dockerfile
            image: ghcr.io/simstudioai/migrations
          - dockerfile: ./docker/realtime.Dockerfile
            image: ghcr.io/simstudioai/realtime

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: useblacksmith/setup-docker-builder@v1

      - name: Generate ARM64 tags
        id: meta
        run: |
          IMAGE="${{ matrix.image }}"
          TAGS="${IMAGE}:latest-arm64,${IMAGE}:${{ github.sha }}-arm64"

          # Add version tag if this is a release commit
          if [ "${{ needs.detect-version.outputs.is_release }}" = "true" ]; then
            VERSION="${{ needs.detect-version.outputs.version }}"
            TAGS="${TAGS},${IMAGE}:${VERSION}-arm64"
            echo "📦 Adding version tag: ${VERSION}-arm64"
          fi

          echo "tags=${TAGS}" >> $GITHUB_OUTPUT

      - name: Build and push ARM64 to GHCR
        uses: useblacksmith/build-push-action@v2
        with:
          context: .
          file: ${{ matrix.dockerfile }}
          platforms: linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          provenance: false
          sbom: false

  # Create GHCR multi-arch manifests (only for main, after both builds)
  create-ghcr-manifests:
    name: Create GHCR Manifests
    runs-on: blacksmith-2vcpu-ubuntu-2404
    needs: [build-amd64, build-ghcr-arm64, detect-version]
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    permissions:
      packages: write
    strategy:
      matrix:
        include:
          - image: ghcr.io/simstudioai/simstudio
          - image: ghcr.io/simstudioai/migrations
          - image: ghcr.io/simstudioai/realtime

    steps:
      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create and push manifests
        run: |
          IMAGE_BASE="${{ matrix.image }}"

          # Create latest manifest
          docker manifest create "${IMAGE_BASE}:latest" \
            "${IMAGE_BASE}:latest-amd64" \
            "${IMAGE_BASE}:latest-arm64"
          docker manifest push "${IMAGE_BASE}:latest"

          # Create SHA manifest
          docker manifest create "${IMAGE_BASE}:${{ github.sha }}" \
            "${IMAGE_BASE}:${{ github.sha }}-amd64" \
            "${IMAGE_BASE}:${{ github.sha }}-arm64"
          docker manifest push "${IMAGE_BASE}:${{ github.sha }}"

          # Create version manifest if this is a release commit
          if [ "${{ needs.detect-version.outputs.is_release }}" = "true" ]; then
            VERSION="${{ needs.detect-version.outputs.version }}"
            echo "📦 Creating version manifest: ${VERSION}"
            docker manifest create "${IMAGE_BASE}:${VERSION}" \
              "${IMAGE_BASE}:${VERSION}-amd64" \
              "${IMAGE_BASE}:${VERSION}-arm64"
            docker manifest push "${IMAGE_BASE}:${VERSION}"
          fi

  # Check if docs changed
  check-docs-changes:
    name: Check Docs Changes
    runs-on: blacksmith-4vcpu-ubuntu-2404
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    outputs:
      docs_changed: ${{ steps.filter.outputs.docs }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2  # Need at least 2 commits to detect changes
      - uses: dorny/paths-filter@v3
        id: filter
        with:
          filters: |
            docs:
              - 'apps/docs/content/docs/en/**'
              - 'apps/sim/scripts/process-docs.ts'
              - 'apps/sim/lib/chunkers/**'

  # Process docs embeddings (only when docs change, after ECR images are pushed)
  process-docs:
    name: Process Docs
    needs: [build-amd64, check-docs-changes]
    if: needs.check-docs-changes.outputs.docs_changed == 'true'
    uses: ./.github/workflows/docs-embeddings.yml
    secrets: inherit