benchmark.yml

name: Performance Benchmarking

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

jobs:
  backend-benchmark:
    name: Backend API benchmarks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18
          cache: npm
          cache-dependency-path: backend/package-lock.json

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

      - name: Start backend server
        working-directory: backend
        run: |
          npm start &
          sleep 5
        env:
          PORT: 4000
          STELLAR_NETWORK: testnet
          HORIZON_URL: https://horizon-testnet.stellar.org
          SOROBAN_RPC_URL: https://soroban-testnet.stellar.org
          STELLAR_NETWORK_PASSPHRASE: Test SDF Network ; September 2015
          VACCINATIONS_CONTRACT_ID: CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4
          ADMIN_SECRET_KEY: SBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4
          ADMIN_PUBLIC_KEY: GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4
          SEP10_SERVER_KEY: SBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4
          ISSUER_SECRET_KEY: SBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4
          JWT_SECRET: test-secret-key-min-32-characters-long

      - name: Install autocannon
        run: npm install -g autocannon

      - name: Benchmark /health endpoint
        run: |
          autocannon -c 10 -d 30 -p 10 http://localhost:4000/health > health-benchmark.txt
          cat health-benchmark.txt

      - name: Benchmark /verify endpoint
        run: |
          autocannon -c 10 -d 30 -p 10 \
            -H "Content-Type: application/json" \
            http://localhost:4000/verify/GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4 > verify-benchmark.txt
          cat verify-benchmark.txt

      - name: Upload benchmark results
        uses: actions/upload-artifact@v4
        with:
          name: backend-benchmarks
          path: |
            health-benchmark.txt
            verify-benchmark.txt
          retention-days: 30

  contract-gas-benchmark:
    name: Contract gas usage benchmarks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust + wasm32 target
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-unknown-unknown

      - name: Cache cargo registry
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            contracts/target
          key: cargo-${{ hashFiles('contracts/Cargo.lock') }}

      - name: Build contract
        working-directory: contracts
        run: make build

      - name: Run gas benchmarks
        working-directory: contracts
        run: |
          cargo test --release -- --nocapture --test-threads=1 2>&1 | tee gas-report.txt
          grep -E "gas_used|instructions" gas-report.txt > gas-summary.txt || true

      - name: Upload gas report
        uses: actions/upload-artifact@v4
        with:
          name: contract-gas-benchmarks
          path: |
            contracts/gas-report.txt
            contracts/gas-summary.txt
          retention-days: 30

  benchmark-comparison:
    name: Compare benchmarks with baseline
    runs-on: ubuntu-latest
    needs: [backend-benchmark, contract-gas-benchmark]
    if: github.event_name == 'pull_request'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Download current benchmarks
        uses: actions/download-artifact@v4
        with:
          name: backend-benchmarks
          path: current-benchmarks

      - name: Download baseline benchmarks
        continue-on-error: true
        run: |
          mkdir -p baseline-benchmarks
          git show origin/main:backend/benchmarks/health-benchmark.txt > baseline-benchmarks/health-benchmark.txt 2>/dev/null || echo "No baseline"
          git show origin/main:backend/benchmarks/verify-benchmark.txt > baseline-benchmarks/verify-benchmark.txt 2>/dev/null || echo "No baseline"

      - name: Compare response times
        run: |
          echo "## Performance Comparison" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          
          if [ -f baseline-benchmarks/health-benchmark.txt ]; then
            echo "### /health endpoint" >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
            tail -20 current-benchmarks/health-benchmark.txt >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
          fi
          
          if [ -f baseline-benchmarks/verify-benchmark.txt ]; then
            echo "### /verify endpoint" >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
            tail -20 current-benchmarks/verify-benchmark.txt >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
          fi

      - name: Check for regressions
        run: |
          # Extract throughput from current benchmarks
          CURRENT_HEALTH=$(grep -oP 'Req/Sec.*?\K[\d.]+' current-benchmarks/health-benchmark.txt | head -1 || echo "0")
          
          if [ -f baseline-benchmarks/health-benchmark.txt ]; then
            BASELINE_HEALTH=$(grep -oP 'Req/Sec.*?\K[\d.]+' baseline-benchmarks/health-benchmark.txt | head -1 || echo "0")
            
            if (( $(echo "$CURRENT_HEALTH < $BASELINE_HEALTH * 0.8" | bc -l) )); then
              echo "⚠️ Performance regression detected on /health endpoint" >> $GITHUB_STEP_SUMMARY
              echo "Baseline: $BASELINE_HEALTH req/s, Current: $CURRENT_HEALTH req/s" >> $GITHUB_STEP_SUMMARY
            else
              echo "✅ No significant performance regression detected" >> $GITHUB_STEP_SUMMARY
            fi
          fi