# Runs on pull requests: unit tests plus a compile check.
# Split into separate jobs (Odin, API, Infra) so they can run concurrently,
# and gated by changed paths so each only runs when its code changes.
# Infra always runs regardless of what changed.

name: CI

on:
  pull_request:
    paths-ignore:
      - '*.md'

permissions:
  contents: read

env:
  # Odin release to use (matches `dev-2026-07`, the version used locally).
  # Bump this when you want CI to track a newer Odin release.
  ODIN_VERSION: dev-2026-07

jobs:
  changes:
    name: Detect changed paths
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: read
    outputs:
      odin: ${{ steps.filter.outputs.odin }}
      api: ${{ steps.filter.outputs.api }}
    steps:
      - uses: dorny/paths-filter@v4
        id: filter
        with:
          filters: |
            odin:
              - 'gui/**'
              - 'scripts/**'
            api:
              - 'api/**'

  odin:
    name: Odin unit tests and build
    needs: changes
    if: ${{ needs.changes.outputs.odin == 'true' }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Install Odin ${{ env.ODIN_VERSION }}
        run: scripts/install_odin.sh

      - name: Install clang
        run: |
          if command -v sudo >/dev/null 2>&1; then
            sudo apt-get update
            sudo apt-get install -y clang
          else
            apt-get update
            apt-get install -y clang
          fi

      - name: Run Odin unit tests
        run: make -C gui test

      - name: Verify build
        run: make -C gui build

  api:
    name: API unit tests and lint
    needs: changes
    if: ${{ needs.changes.outputs.api == 'true' }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Test Rust API
        run: |
          cd api
          cargo test

      - name: Lint Rust API
        run: |
          cd api
          cargo clippy --all-targets -- -D warnings

      - name: Format-check Rust API
        run: |
          cd api
          cargo fmt --all --check

  infra:
    name: Infra unit tests and vet
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - uses: actions/setup-go@v6
        with:
          go-version: '1.26'

      - name: Run Go tests
        run: |
          cd infra
          go mod download
          go test ./...

      - name: Vet Go code
        run: |
          cd infra
          go vet ./...