name: CI

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

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.24'

      - name: Configure Git
        run: |
          git config --global user.name "CI Bot"
          git config --global user.email "ci@beads.test"

      - name: Build
        run: go build -v ./cmd/bd

      - name: Test
        run: go test -v -race -short -coverprofile=coverage.out ./...

      - name: Check coverage threshold
        run: |
          COVERAGE=$(go tool cover -func=coverage.out | grep total | awk '{print $3}' | sed 's/%//')
          MIN_COVERAGE=45
          WARN_COVERAGE=55
          echo "Coverage: $COVERAGE%"
          if (( $(echo "$COVERAGE < $MIN_COVERAGE" | bc -l) )); then
            echo "❌ Coverage is below ${MIN_COVERAGE}% threshold"
            exit 1
          elif (( $(echo "$COVERAGE < $WARN_COVERAGE" | bc -l) )); then
            echo "⚠️  Coverage is below ${WARN_COVERAGE}% (warning threshold)"
          else
            echo "✅ Coverage meets threshold"
          fi

      - name: Upload coverage
        uses: codecov/codecov-action@v4
        if: success()
        with:
          file: ./coverage.out
          fail_ci_if_error: false

  test-windows-cmd:
    name: Test (Windows - cmd)
    runs-on: windows-latest
    continue-on-error: true  # Windows filesystem is slow; don't block PRs
    steps:
      - uses: actions/checkout@v6

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.24'

      - name: Configure Git
        run: |
          git config --global user.name "CI Bot"
          git config --global user.email "ci@beads.test"

      - name: Build
        run: go build -v ./cmd/bd

      - name: Test cmd package
        run: go test -v -short -timeout=30m -parallel=4 ./cmd/...

  test-windows-internal:
    name: Test (Windows - internal)
    runs-on: windows-latest
    continue-on-error: true  # Windows filesystem is slow; don't block PRs
    steps:
      - uses: actions/checkout@v6

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.24'

      - name: Configure Git
        run: |
          git config --global user.name "CI Bot"
          git config --global user.email "ci@beads.test"

      - name: Test internal packages
        run: go test -v -short -timeout=30m -parallel=4 ./internal/...

  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.24'

      - name: golangci-lint
        uses: golangci/golangci-lint-action@v9
        with:
          version: latest
          args: --timeout=5m
  test-nix:
    name: Test Nix Flake
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - uses: cachix/install-nix-action@v31
        with:
          nix_path: nixpkgs=channel:nixos-unstable
      - name: Run bd help via Nix
        run: |
          export BEADS_DB="$PWD/.ci-beads/beads.db"
          mkdir -p "$(dirname "$BEADS_DB")"
          rm -rf .beads
          nix run .#default -- --db "$BEADS_DB" init --quiet --prefix ci
          nix run .#default -- --db "$BEADS_DB" > help.txt
      - name: Verify help text
        run: |
          FIRST_LINE=$(head -n 1 help.txt)
          EXPECTED="Issues chained together like beads. A lightweight issue tracker with first-class dependency support."
          if [ "$FIRST_LINE" != "$EXPECTED" ]; then
            echo "❌ First line of help.txt doesn't match expected output"
            echo "Expected: $EXPECTED"
            echo "Got: $FIRST_LINE"
            exit 1
          fi
          echo "✅ Help text first line is correct"
      - name: Verify default.nix package version matches bd program version
        run: |
          BD_VERSION=$(grep 'Version = ' cmd/bd/version.go | sed 's/.*"\(.*\)".*/\1/')
          NIX_BD_VERSION=$(grep 'version = ' default.nix | sed 's/.*"\(.*\)".*/\1/')
          if [ "$BD_VERSION" != "$NIX_BD_VERSION" ]; then
            echo "❌ default.nix version ($NIX_BD_VERSION) != version.go ($BD_VERSION)"
            echo "Run: scripts/bump-version.sh to sync default.nix"
            exit 1
          fi
          echo "✅ default.nix version matches: $BD_VERSION"