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="relspec-${GOOS}-${GOARCH}${EXT}"
            GOOS="$GOOS" GOARCH="$GOARCH" go build \
              -trimpath \
              -ldflags "-X git.warky.dev/wdevs/relspecgo/cmd/relspec.version=${VERSION}" \
              -o "$NAME" ./cmd/relspec
            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 | sed 's/{[^}]*}//')
          if [ -z "$UPLOAD_URL" ]; then
            echo "Failed to create release: $RELEASE"
            exit 1
          fi

          for f in relspec-*; 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-aur:
    needs: release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Publish to AUR
        env:
          AUR_SSH_KEY: ${{ secrets.AUR_SSH_KEY }}
        run: |
          set -euo pipefail

          VERSION="${{ github.event.inputs.tag || github.ref_name }}"
          PKGVER="${VERSION#v}"
          AUR_KEY_PATH="$HOME/.ssh/aur"
          AUR_KNOWN_HOSTS="$HOME/.ssh/known_hosts"

          # Setup SSH for AUR
          mkdir -p ~/.ssh
          chmod 700 ~/.ssh

          if [ -z "${AUR_SSH_KEY:-}" ]; then
            echo "AUR_SSH_KEY is empty"
            exit 1
          fi

          # Support raw multiline keys, escaped \\n secrets, or base64-encoded keys.
          CLEAN_AUR_SSH_KEY="$(printf '%s' "$AUR_SSH_KEY" | tr -d '\r')"
          if printf '%s' "$CLEAN_AUR_SSH_KEY" | grep -q "^-----BEGIN .*PRIVATE KEY-----$"; then
            printf '%s\n' "$CLEAN_AUR_SSH_KEY" > "$AUR_KEY_PATH"
          elif printf '%s' "$CLEAN_AUR_SSH_KEY" | grep -q '\\n'; then
            printf '%b\n' "$CLEAN_AUR_SSH_KEY" > "$AUR_KEY_PATH"
          else
            if printf '%s' "$CLEAN_AUR_SSH_KEY" | tr -d '[:space:]' | base64 --decode > "$AUR_KEY_PATH" 2>/dev/null; then
              :
            else
              printf '%s\n' "$CLEAN_AUR_SSH_KEY" > "$AUR_KEY_PATH"
            fi
          fi
          chmod 600 "$AUR_KEY_PATH"

          if ! ssh-keygen -y -f "$AUR_KEY_PATH" >/dev/null 2>&1; then
            echo "AUR_SSH_KEY is not a valid private key."
            echo "Store it as a raw private key, an escaped private key with \\n, or a base64-encoded private key."
            exit 1
          fi

          ssh-keyscan -t rsa,ed25519 aur.archlinux.org >> "$AUR_KNOWN_HOSTS"
          chmod 644 "$AUR_KNOWN_HOSTS"

          # Clone AUR repo
          GIT_SSH_COMMAND="ssh -o IdentitiesOnly=yes -o StrictHostKeyChecking=yes -o UserKnownHostsFile=$AUR_KNOWN_HOSTS -i $AUR_KEY_PATH" \
            git clone ssh://aur@aur.archlinux.org/relspec.git aur-repo

          CURRENT_PKGVER=$(awk -F= '/^pkgver=/ {print $2; exit}' aur-repo/PKGBUILD | tr -d "[:space:]")
          CURRENT_PKGREL=$(awk -F= '/^pkgrel=/ {print $2; exit}' aur-repo/PKGBUILD | tr -d "[:space:]")

          if [ "$CURRENT_PKGVER" = "$PKGVER" ]; then
            case "$CURRENT_PKGREL" in
              ''|*[!0-9]*)
                echo "Unsupported pkgrel in AUR repo: ${CURRENT_PKGREL}"
                exit 1
                ;;
              *)
                PKGREL=$((CURRENT_PKGREL + 1))
                ;;
            esac
          else
            PKGREL=1
          fi

          echo "Publishing AUR package version ${PKGVER}-${PKGREL}"

          # Compute SHA256 of the source archive from the same URL the PKGBUILD will download.
          SHA=$(curl -fsSL "https://git.warky.dev/wdevs/relspecgo/archive/v${PKGVER}.zip" | sha256sum | cut -d' ' -f1)

          # Update PKGBUILD — keep remote source URL, bump version/checksum, and increment pkgrel for same-version rebuilds.
          sed -e "s/^pkgver=.*/pkgver=${PKGVER}/" \
              -e "s/^pkgrel=.*/pkgrel=${PKGREL}/" \
              -e "s/^sha256sums=.*/sha256sums=('${SHA}')/" \
              linux/arch/PKGBUILD > aur-repo/PKGBUILD

          # Generate .SRCINFO inside an Arch container (docker cp avoids DinD volume mount issues)
          CID=$(docker run -d archlinux:latest sleep infinity)
          docker cp aur-repo/PKGBUILD $CID:/build/PKGBUILD || (docker exec $CID mkdir -p /build && docker cp aur-repo/PKGBUILD $CID:/build/PKGBUILD)
          docker exec $CID bash -c "
            pacman -Sy --noconfirm base-devel &&
            useradd -m builder &&
            chown -R builder:builder /build &&
            runuser -u builder -- bash -c 'cd /build && makepkg --printsrcinfo > .SRCINFO'
          "
          docker cp $CID:/build/.SRCINFO aur-repo/.SRCINFO
          docker rm -f $CID

          # Commit and push to AUR master
          cd aur-repo
          git config user.email "hein@warky.dev"
          git config user.name "Hein"
          git add PKGBUILD .SRCINFO
          git commit -m "Update to v${PKGVER}-${PKGREL}"
          GIT_SSH_COMMAND="ssh -o IdentitiesOnly=yes -o StrictHostKeyChecking=yes -o UserKnownHostsFile=$AUR_KNOWN_HOSTS -i $AUR_KEY_PATH" \
            git push origin HEAD:master

  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=$GOARCH go build \
              -trimpath \
              -ldflags "-X git.warky.dev/wdevs/relspecgo/cmd/relspec.version=${PKGVER}" \
              -o relspec ./cmd/relspec

            PKGDIR="relspec_${PKGVER}_${GOARCH}"
            mkdir -p "${PKGDIR}/DEBIAN"
            mkdir -p "${PKGDIR}/usr/bin"

            install -m755 relspec "${PKGDIR}/usr/bin/relspec"

            sed -e "s/VERSION/${PKGVER}/" \
                -e "s/ARCH/${GOARCH}/" \
                linux/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 "$RELEASE" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4 | sed 's/{[^}]*}//')
          for f in *.deb; do
            FNAME=$(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: |
          set -euo pipefail

          VERSION="${{ github.event.inputs.tag || github.ref_name }}"
          PKGVER="${VERSION#v}"
          GO_VER="$(awk '/^go / { print $2; exit }' go.mod)"

          if [ -z "${GO_VER}" ]; then
            echo "Failed to determine Go version from go.mod"
            exit 1
          fi

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

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

          mkdir -p linux/centos/out
          CID=$(docker create \
            -e GO_VER="${GO_VER}" \
            -e PKGVER="${PKGVER}" \
            -w /build \
            rockylinux:9 \
            bash -lc "
              set -euo pipefail
              dnf install -y rpm-build git &&
              curl -fsSL https://go.dev/dl/go\${GO_VER}.linux-amd64.tar.gz | tar -C /usr/local -xz &&
              export PATH=\$PATH:/usr/local/go/bin &&
              mkdir -p ~/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS} &&
              cp relspec-${PKGVER}.tar.gz ~/rpmbuild/SOURCES/ &&
              cp linux/centos/relspec.spec ~/rpmbuild/SPECS/ &&
              rpmbuild --nodeps -ba ~/rpmbuild/SPECS/relspec.spec
            ")

          cleanup() {
            docker rm -f "$CID" >/dev/null 2>&1 || true
          }
          trap cleanup EXIT

          docker cp relspec-${PKGVER}.tar.gz "$CID:/build/relspec-${PKGVER}.tar.gz"
          docker cp linux "$CID:/build/linux"

          docker start -a "$CID"
          docker cp "$CID:/root/rpmbuild/RPMS/." linux/centos/out/

          trap - EXIT
          cleanup

      - 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 "$RELEASE" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4 | sed 's/{[^}]*}//')
          while IFS= read -r f; do
            FNAME=$(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 < <(find linux/centos/out -name "*.rpm")
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}