name: CI

on:
  pull_request:
  push:
    branches:
      - main
    tags:
      - "v*"
  workflow_dispatch:

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

jobs:
  classify_changes:
    name: Classify Changes
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      run_full_ci: ${{ steps.filter.outputs.run_full_ci }}
    steps:
      - name: Checkout source
        uses: actions/checkout@v5.0.1
        with:
          fetch-depth: 0

      - name: Detect text-only changes
        id: filter
        env:
          BEFORE_SHA: ${{ github.event.before }}
          EVENT_NAME: ${{ github.event_name }}
          PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
          PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
          REF_TYPE: ${{ github.ref_type }}
        run: |
          set -euo pipefail

          if [[ "$EVENT_NAME" == "workflow_dispatch" || "$REF_TYPE" == "tag" ]]; then
            echo "run_full_ci=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          if [[ "$EVENT_NAME" == "pull_request" ]]; then
            base="$PR_BASE_SHA"
            head="$PR_HEAD_SHA"
          else
            base="$BEFORE_SHA"
            head="$GITHUB_SHA"
            if [[ "$base" == "0000000000000000000000000000000000000000" ]]; then
              base="$(git rev-parse "${head}^" 2>/dev/null || true)"
            fi
          fi

          if [[ -z "${base:-}" ]]; then
            echo "run_full_ci=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          mapfile -t changed < <(git diff --name-only "$base" "$head")
          if [[ "${#changed[@]}" -eq 0 ]]; then
            echo "run_full_ci=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          run_full_ci=false
          for path in "${changed[@]}"; do
            case "$path" in
              *.md|*.mdx|*.txt|*.rst|*.adoc) ;;
              *)
                run_full_ci=true
                break
                ;;
            esac
          done

          printf 'Changed files:\n'
          printf '  %s\n' "${changed[@]}"
          echo "run_full_ci=$run_full_ci" >> "$GITHUB_OUTPUT"

  test:
    name: Test Workspace
    needs: classify_changes
    runs-on: ubuntu-latest
    timeout-minutes: 45
    permissions:
      contents: read
    env:
      CARGO_TERM_COLOR: always
    steps:
      - name: Skip heavy CI for text-only changes
        if: needs.classify_changes.outputs.run_full_ci != 'true'
        run: echo "Text-only change detected; skipping workspace test run."

      - name: Checkout source
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        uses: actions/checkout@v5.0.1

      - name: Install system dependencies
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        run: |
          sudo apt-get update
          sudo apt-get install -y protobuf-compiler libprotobuf-dev

      - name: Install Rust stable
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable

      - name: Cache Rust build data
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            . -> target

      - name: Run workspace tests
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        run: cargo test --workspace --locked

  rustfs_integration:
    name: RustFS S3 Integration
    needs:
      - classify_changes
      - test
    runs-on: ubuntu-latest
    timeout-minutes: 45
    permissions:
      contents: read
    env:
      AWS_ACCESS_KEY_ID: rustfsadmin
      AWS_SECRET_ACCESS_KEY: rustfsadmin
      AWS_REGION: us-east-1
      AWS_ENDPOINT_URL: http://127.0.0.1:9000
      AWS_ENDPOINT_URL_S3: http://127.0.0.1:9000
      AWS_ALLOW_HTTP: "true"
      AWS_S3_FORCE_PATH_STYLE: "true"
      OMNIGRAPH_S3_TEST_BUCKET: omnigraph-ci
      OMNIGRAPH_S3_TEST_PREFIX: github-actions
      CARGO_TERM_COLOR: always
    steps:
      - name: Skip heavy CI for text-only changes
        if: needs.classify_changes.outputs.run_full_ci != 'true'
        run: echo "Text-only change detected; skipping RustFS integration tests."

      - name: Checkout source
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        uses: actions/checkout@v5.0.1

      - name: Install system dependencies
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        run: |
          sudo apt-get update
          sudo apt-get install -y protobuf-compiler libprotobuf-dev python3-pip

      - name: Install Rust stable
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable

      - name: Cache Rust build data
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            . -> target

      - name: Start RustFS
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        run: |
          docker rm -f rustfs >/dev/null 2>&1 || true
          docker run -d \
            --name rustfs \
            -p 9000:9000 \
            -p 9001:9001 \
            -e RUSTFS_ACCESS_KEY="${AWS_ACCESS_KEY_ID}" \
            -e RUSTFS_SECRET_KEY="${AWS_SECRET_ACCESS_KEY}" \
            rustfs/rustfs:latest \
            /data

      - name: Install AWS CLI
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        run: |
          python3 -m pip install --user awscli
          echo "$HOME/.local/bin" >> "$GITHUB_PATH"

      - name: Create RustFS test bucket
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        run: |
          for _ in $(seq 1 30); do
            if aws --endpoint-url "${AWS_ENDPOINT_URL_S3}" s3api list-buckets >/dev/null 2>&1; then
              break
            fi
            sleep 2
          done
          aws --endpoint-url "${AWS_ENDPOINT_URL_S3}" \
            s3api create-bucket \
            --bucket "${OMNIGRAPH_S3_TEST_BUCKET}" >/dev/null 2>&1 || true

      - name: Run RustFS-backed repo tests
        if: needs.classify_changes.outputs.run_full_ci == 'true'
        run: |
          cargo test --locked -p omnigraph --test s3_storage -- --nocapture
          cargo test --locked -p omnigraph-server --test server server_opens_s3_repo_directly_and_serves_snapshot_and_read -- --nocapture
          cargo test --locked -p omnigraph-cli --test system_local local_cli_s3_end_to_end_init_load_read_flow -- --nocapture

      - name: Dump RustFS logs on failure
        if: failure() && needs.classify_changes.outputs.run_full_ci == 'true'
        run: docker logs rustfs