name: Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag to release (e.g. v1.2.3)'
        required: true

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version-file: go.mod

      - name: Test
        run: go test ./...

      - name: Lint
        run: go vet ./...

  release:
    needs: test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-go@v5
        with:
          go-version-file: go.mod

      - name: Build release binaries
        run: |
          VERSION="${{ github.event.inputs.tag || github.ref_name }}"
          for target in "linux/amd64" "linux/arm64" "darwin/amd64" "darwin/arm64" "windows/amd64"; do
            GOOS="${target%/*}"
            GOARCH="${target#*/}"
            EXT=""
            [ "$GOOS" = "windows" ] && EXT=".exe"
            NAME="unitdore-${GOOS}-${GOARCH}${EXT}"
            GOOS="$GOOS" GOARCH="$GOARCH" go build \
              -ldflags "-X main.version=${VERSION}" \
              -o "$NAME" .
            echo "Built $NAME"
          done

      - name: Create release and upload assets
        run: |
          TAG="${{ github.event.inputs.tag || github.ref_name }}"
          API="${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases"

          # Collect commits since the previous tag (or last 20 if no prior tag)
          PREV_TAG=$(git tag --sort=-version:refname | grep -v "^${TAG}$" | head -1)
          if [ -n "$PREV_TAG" ]; then
            RANGE="${PREV_TAG}..${TAG}"
          else
            RANGE="HEAD~20..HEAD"
          fi
          NOTES=$(git log "$RANGE" --pretty=format:"- %s" --no-merges)
          BODY="## What's changed"$'\n'"${NOTES}"

          # Escape for JSON
          BODY_JSON=$(printf '%s' "$BODY" | python3 -c 'import json,sys; print(json.dumps(sys.stdin.read()))')

          RELEASE=$(curl -s -X POST "$API" \
            -H "Authorization: token ${GITHUB_TOKEN}" \
            -H "Content-Type: application/json" \
            -d "{\"tag_name\":\"${TAG}\",\"name\":\"${TAG}\",\"body\":${BODY_JSON}}")

          UPLOAD_URL=$(echo "$RELEASE" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4)
          if [ -z "$UPLOAD_URL" ]; then
            echo "Failed to create release: $RELEASE"
            exit 1
          fi

          for f in unitdore-*; do
            echo "Uploading $f..."
            curl -s -X POST "${UPLOAD_URL}?name=${f}" \
              -H "Authorization: token ${GITHUB_TOKEN}" \
              -H "Content-Type: application/octet-stream" \
              --data-binary "@${f}" > /dev/null
          done
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  pkg-arch:
    needs: release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Build Arch package
        run: |
          VERSION="${{ github.event.inputs.tag || github.ref_name }}"
          PKGVER="${VERSION#v}"

          # Source tarball — prefix=unitdore/ matches `cd "$pkgname"` in PKGBUILD
          git archive --format=tar.gz --prefix=unitdore/ HEAD \
            > pkg/arch/unitdore-${PKGVER}.tar.gz
          SHA=$(sha256sum pkg/arch/unitdore-${PKGVER}.tar.gz | cut -d' ' -f1)

          # Patch PKGBUILD for local build
          sed -i \
            -e "s/^pkgver=.*/pkgver=${PKGVER}/" \
            -e "s/^sha256sums=.*/sha256sums=('${SHA}')/" \
            -e "s|source=.*|source=(\"unitdore-\${pkgver}.tar.gz\")|" \
            pkg/arch/PKGBUILD

          mkdir -p pkg/arch/out
          docker run --rm \
            -v "$PWD/pkg/arch:/build" \
            -v "$PWD/pkg/arch/out:/out" \
            -w /build \
            archlinux:latest \
            bash -c "
              pacman -Syu --noconfirm base-devel go &&
              useradd -m builder &&
              chown -R builder:builder /build &&
              runuser -u builder -- makepkg --noconfirm --noprogressbar &&
              cp /build/*.pkg.tar.zst /out/
            "

      - name: Upload to release
        run: |
          TAG="${{ github.event.inputs.tag || github.ref_name }}"
          RELEASE=$(curl -s "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/${TAG}" \
            -H "Authorization: token ${GITHUB_TOKEN}")
          UPLOAD_URL=$(echo "$RELEASE" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4)
          for f in pkg/arch/out/*.pkg.tar.zst; do
            FNAME=$(basename "$f")
            echo "Uploading $FNAME..."
            curl -s -X POST "${UPLOAD_URL}?name=${FNAME}" \
              -H "Authorization: token ${GITHUB_TOKEN}" \
              -H "Content-Type: application/octet-stream" \
              --data-binary "@${f}" > /dev/null
          done
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  pkg-deb:
    needs: release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-go@v5
        with:
          go-version-file: go.mod

      - name: Build Debian packages
        run: |
          VERSION="${{ github.event.inputs.tag || github.ref_name }}"
          PKGVER="${VERSION#v}"

          for GOARCH in amd64 arm64; do
            GOOS=linux GOARCH=$GOARCH go build \
              -trimpath \
              -ldflags "-X main.version=${PKGVER}" \
              -o unitdore .

            PKGDIR="unitdore_${PKGVER}_${GOARCH}"
            mkdir -p "${PKGDIR}/DEBIAN"
            mkdir -p "${PKGDIR}/usr/bin"
            mkdir -p "${PKGDIR}/usr/share/man/man1"
            mkdir -p "${PKGDIR}/etc/unitdore"

            install -m755 unitdore "${PKGDIR}/usr/bin/unitdore"
            install -m644 docs/unitdore.1 "${PKGDIR}/usr/share/man/man1/unitdore.1"

            sed -e "s/VERSION/${PKGVER}/" \
                -e "s/ARCH/${GOARCH}/" \
                pkg/debian/control > "${PKGDIR}/DEBIAN/control"

            dpkg-deb --build --root-owner-group "${PKGDIR}"
            echo "Built ${PKGDIR}.deb"
          done

      - name: Upload to release
        run: |
          TAG="${{ github.event.inputs.tag || github.ref_name }}"
          RELEASE=$(curl -s "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/${TAG}" \
            -H "Authorization: token ${GITHUB_TOKEN}")
          UPLOAD_URL=$(echo "$RELEASE" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4)
          for f in *.deb; do
            FNAME=$(basename "$f")
            echo "Uploading $FNAME..."
            curl -s -X POST "${UPLOAD_URL}?name=${FNAME}" \
              -H "Authorization: token ${GITHUB_TOKEN}" \
              -H "Content-Type: application/octet-stream" \
              --data-binary "@${f}" > /dev/null
          done
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  pkg-rpm:
    needs: release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Build RPM
        run: |
          VERSION="${{ github.event.inputs.tag || github.ref_name }}"
          PKGVER="${VERSION#v}"

          # Source tarball — prefix=unitdore-VERSION/ matches RPM %autosetup convention
          git archive --format=tar.gz --prefix=unitdore-${PKGVER}/ HEAD \
            > unitdore-${PKGVER}.tar.gz

          # Patch spec version
          sed -i "s/^Version:.*/Version:        ${PKGVER}/" pkg/centos/unitdore.spec

          mkdir -p pkg/centos/out
          docker run --rm \
            -v "$PWD:/workspace" \
            -v "$PWD/pkg/centos/out:/out" \
            -w /workspace \
            rockylinux:9 \
            bash -c "
              dnf install -y rpm-build golang git &&
              mkdir -p ~/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS} &&
              cp unitdore-${PKGVER}.tar.gz ~/rpmbuild/SOURCES/ &&
              cp pkg/centos/unitdore.spec ~/rpmbuild/SPECS/ &&
              rpmbuild -ba ~/rpmbuild/SPECS/unitdore.spec &&
              find ~/rpmbuild/RPMS -name '*.rpm' -exec cp {} /out/ \;
            "

      - name: Upload to release
        run: |
          TAG="${{ github.event.inputs.tag || github.ref_name }}"
          RELEASE=$(curl -s "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/${TAG}" \
            -H "Authorization: token ${GITHUB_TOKEN}")
          UPLOAD_URL=$(echo "$RELEASE" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4)
          for f in pkg/centos/out/*.rpm; do
            FNAME=$(basename "$f")
            echo "Uploading $FNAME..."
            curl -s -X POST "${UPLOAD_URL}?name=${FNAME}" \
              -H "Authorization: token ${GITHUB_TOKEN}" \
              -H "Content-Type: application/octet-stream" \
              --data-binary "@${f}" > /dev/null
          done
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}