name: CI

on:
  pull_request:
    branches: [main]

jobs:
  check:
    runs-on: linux-amd64
    container:
      image: rust:1-bookworm
    steps:
      - uses: actions/checkout@v4

      - name: Cache cargo registry and build
        uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: cargo-ci-${{ hashFiles('**/Cargo.lock') }}

      - name: Check formatting
        run: rustup component add rustfmt && cargo fmt --check

      - name: Clippy
        run: rustup component add clippy && cargo clippy -- -D warnings

      - name: Test rustitch
        run: cargo test -p rustitch

      - name: Test stitch-peek
        run: cargo test -p stitch-peek

      - name: Build
        run: cargo build --release

  version-check:
    runs-on: linux-amd64
    container:
      image: rust:1-bookworm
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Verify version was bumped
        run: |
          PR_VERSION=$(grep -m1 '^version' stitch-peek/Cargo.toml | sed 's/.*"\(.*\)"/\1/')
          git fetch origin main
          MAIN_VERSION=$(git show origin/main:stitch-peek/Cargo.toml | grep -m1 '^version' | sed 's/.*"\(.*\)"/\1/')

          echo "PR version:   $PR_VERSION"
          echo "Main version: $MAIN_VERSION"

          if [ "$PR_VERSION" = "$MAIN_VERSION" ]; then
            echo "::error::Version in stitch-peek/Cargo.toml ($PR_VERSION) was not bumped. Please update the version before merging."
            exit 1
          fi

          # Ensure the new version is actually newer (basic semver compare)
          printf '%s\n%s' "$MAIN_VERSION" "$PR_VERSION" | sort -V | tail -1 | grep -qx "$PR_VERSION"
          if [ $? -ne 0 ]; then
            echo "::error::PR version ($PR_VERSION) is not newer than main ($MAIN_VERSION)."
            exit 1
          fi

          echo "Version bump verified: $MAIN_VERSION -> $PR_VERSION"