release.yml

# Release workflow — triggered by a pushed semver tag (vX.Y.Z)
#
# Usage:
#   1. Decide on the next version per semver (MAJOR.MINOR.PATCH).
#   2. Create and push the tag:
#         git tag vX.Y.Z
#         git push origin vX.Y.Z
#   3. This workflow will build, create a GitHub Release, and
#      generate a changelog from conventional-commit messages.

name: Release

on:
  push:
    tags:
      - "v[0-9]+.[0-9]+.[0-9]+"

permissions:
  contents: write

jobs:
  release:
    name: Create Release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          # Fetch all history so git-cliff / auto-changelog can read commits
          fetch-depth: 0

      - name: Query tag metadata
        id: tag
        run: |
          echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      # ── Install toolchains ────────────────────────────────
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-unknown-unknown

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm
          cache-dependency-path: |
            package-lock.json
            frontend/package-lock.json
            backend/package-lock.json

      # ── Install dependencies ──────────────────────────────
      - name: Install frontend dependencies
        working-directory: frontend
        run: npm ci

      - name: Install backend dependencies
        working-directory: backend
        run: npm ci

      # ── Build all artifacts ───────────────────────────────
      - name: Build frontend
        working-directory: frontend
        run: npm run build

      - name: Build backend
        working-directory: backend
        run: npm run build

      - name: Build onchain contracts
        working-directory: onchain
        run: cargo build --workspace --target wasm32-unknown-unknown --release --locked

      - name: Run onchain tests
        working-directory: onchain
        run: cargo test --workspace --locked

      - name: Verify wasm artifacts were produced
        working-directory: onchain
        run: |
          for f in stellar_hunts stellar_hunts_nft stellar_hunts_receiver; do
            test -s "target/wasm32-unknown-unknown/release/${f}.wasm" \
              || { echo "::error::missing or empty artifact: ${f}.wasm"; exit 1; }
          done

      # ── Generate changelog ────────────────────────────────
      - name: Generate changelog
        id: changelog
        run: |
          # Build a changelog from conventional-commit messages.
          # Groups commits by type (feat, fix, chore, docs, ci, etc.)
          # for readable release notes.
          PREV_TAG=$(git describe --tags --abbrev=0 "${GITHUB_REF_NAME}^" 2>/dev/null || echo "")
          if [ -z "$PREV_TAG" ]; then
            RANGE="${GITHUB_REF_NAME}"
          else
            RANGE="${PREV_TAG}..${GITHUB_REF_NAME}"
          fi

          {
            echo "changelog<<EOF"
            echo "# StellarHunts ${{ steps.tag.outputs.version }}"
            echo ""

            # Helper: print a section if there are matching commits
            print_section() {
              local label="$1" prefix="$2"
              commits=$(git log "${RANGE}" --no-merges --pretty=format:"- %s (%h)" --grep="^${prefix}")
              if [ -n "$commits" ]; then
                echo ""
                echo "### ${label}"
                echo ""
                echo "$commits"
              fi
            }

            print_section "🚀 Features" "feat"
            print_section "🐛 Bug Fixes" "fix"
            print_section "📖 Documentation" "docs"
            print_section "♻️ Refactoring" "refactor"
            print_section "🧪 Tests" "test"
            print_section "🔧 CI/CD" "ci"
            print_section "📦 Chores" "chore"
            print_section "💄 Style" "style"

            # If no conventional commits matched, fall back to chronological list
            ALL=$(git log "${RANGE}" --no-merges --pretty=format:"- %s (%h)")
            if [ -z "$ALL" ]; then
              echo ""
              echo "No changes since previous release."
            fi

            echo ""
            echo "**Full Changelog**: https://github.com/${{ github.repository }}/compare/${PREV_TAG:+$PREV_TAG...}${GITHUB_REF_NAME}"
            echo "EOF"
          } >> "$GITHUB_OUTPUT"
        shell: bash

      # ── Create GitHub Release ─────────────────────────────
      - name: Create Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ github.ref_name }}
          name: v${{ steps.tag.outputs.version }}
          body: ${{ steps.changelog.outputs.changelog }}
          draft: false
          prerelease: false
          generate_release_notes: false
          files: |
            onchain/target/wasm32-unknown-unknown/release/stellar_hunts.wasm
            onchain/target/wasm32-unknown-unknown/release/stellar_hunts_nft.wasm
            onchain/target/wasm32-unknown-unknown/release/stellar_hunts_receiver.wasm
          fail_on_unmatched_files: true