contract-build.yml

name: Contract Build & Binary Size

on:
  push:
    branches: [main]
    paths:
      - 'contracts/**'
  pull_request:
    branches: [main]
    paths:
      - 'contracts/**'
  workflow_dispatch:
    inputs:
      features:
        description: 'Feature flags for subscription crate (e.g. "oracle,extended")'
        required: false
        default: ''

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1

jobs:
  # ── 1. Core contracts — smallest binary, fastest CI ───────────────────────
  build-core:
    name: Build Core Contracts
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - name: Build core contracts (no optional features)
        uses: ./.github/actions/build-contracts
        with:
          contracts: 'storage proxy subscription'
          features: ''
          run-wasm-opt: 'false'
          upload-artifacts: 'true'

  # ── 2. Full subscription build — all optional features ────────────────────
  build-full:
    name: Build Subscription (All Features)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - name: Build subscription with all features
        uses: ./.github/actions/build-contracts
        with:
          contracts: 'subscription'
          features: 'full'
          run-wasm-opt: 'false'
          upload-artifacts: 'false'

  # ── 3. Feature-flag matrix — verify each flag compiles independently ───────
  feature-matrix:
    name: Feature Flag / ${{ matrix.feature }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        feature:
          - ''          # core only (no optional features)
          - 'oracle'
          - 'extended'
          - 'metering'
          - 'credit'
          - 'fraud'
          - 'audit-log'
          - 'full'      # all features combined

    steps:
      - uses: actions/checkout@v7

      - name: Install Rust stable
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: stable

      - name: Add WASM target
        run: rustup target add wasm32-unknown-unknown

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

      - name: cargo check — feature=${{ matrix.feature || 'default' }}
        continue-on-error: true
        working-directory: contracts
        run: |
          FEATURE="${{ matrix.feature }}"
          if [[ -z "$FEATURE" ]]; then
            cargo check --target wasm32-unknown-unknown \
              -p subtrackr-subscription --no-default-features
          else
            cargo check --target wasm32-unknown-unknown \
              -p subtrackr-subscription --features "subtrackr-subscription/$FEATURE"
          fi

  # ── 4. Binary size monitoring — compare PR vs main ────────────────────────
  binary-size:
    name: Binary Size Monitoring
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request'
    steps:
      - uses: actions/checkout@v7

      - name: Install Rust stable
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: stable

      - name: Add WASM target
        run: rustup target add wasm32-unknown-unknown

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

      - name: Build PR branch (core)
        working-directory: contracts
        run: |
          cargo build --target wasm32-unknown-unknown --release \
            -p subtrackr-subscription \
            -p subtrackr-storage \
            -p subtrackr-proxy || true

      - name: Record PR sizes
        id: pr-sizes
        working-directory: contracts
        run: |
          WASM_DIR="target/wasm32-unknown-unknown/release"
          OUT=""
          for f in "$WASM_DIR"/*.wasm; do
            [[ -f "$f" ]] || continue
            name=$(basename "$f")
            bytes=$(wc -c < "$f")
            OUT="$OUT\n$name=$bytes"
          done
          echo "sizes<<EOF" >> "$GITHUB_OUTPUT"
          echo -e "$OUT" >> "$GITHUB_OUTPUT"
          echo "EOF" >> "$GITHUB_OUTPUT"

      - name: Post size summary to PR
        uses: actions/github-script@v7
        with:
          script: |
            const rawSizes = `${{ steps.pr-sizes.outputs.sizes }}`;
            const lines = rawSizes.trim().split('\n').filter(Boolean);
            if (!lines.length) return;

            const rows = lines.map(line => {
              const [name, bytes] = line.split('=');
              const kb = (parseInt(bytes, 10) / 1024).toFixed(1);
              const status = parseInt(bytes, 10) > 512 * 1024 ? '⚠️' : '✅';
              return `| ${status} | \`${name}\` | ${kb} KB |`;
            }).join('\n');

            const body = [
              '### 📦 WASM Binary Size Report',
              '',
              '| Status | Contract | Size |',
              '|--------|----------|------|',
              rows,
              '',
              '_Budget: 500 KB per contract. ⚠️ = exceeds budget._',
            ].join('\n');

            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body,
            });

  # ── 5. Compile-time benchmark — report on main only ───────────────────────
  compile-benchmark:
    name: Compilation Time Benchmark
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    steps:
      - uses: actions/checkout@v7

      - name: Install Rust stable
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: stable

      - name: Add WASM target
        run: rustup target add wasm32-unknown-unknown

      - name: Measure full workspace build time
        id: bench
        working-directory: contracts
        run: |
          cargo clean
          START=$(date +%s%N)
          cargo build --target wasm32-unknown-unknown --release --workspace \
            --message-format json 2>/dev/null | tail -5 || true
          END=$(date +%s%N)
          ELAPSED_MS=$(( (END - START) / 1000000 ))
          echo "elapsed_ms=$ELAPSED_MS" >> "$GITHUB_OUTPUT"
          echo "::notice::Full workspace build time: ${ELAPSED_MS}ms"

      - name: Write compile time to summary
        run: |
          echo "## ⏱ Compile Time" >> "$GITHUB_STEP_SUMMARY"
          echo "" >> "$GITHUB_STEP_SUMMARY"
          echo "Full workspace (wasm32, release): **${{ steps.bench.outputs.elapsed_ms }} ms**" >> "$GITHUB_STEP_SUMMARY"

  # ── 6. Dependency analysis ────────────────────────────────────────────────
  dep-analysis:
    name: Module Dependency Analysis
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - name: Install Rust stable
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: stable

      - name: Print dependency tree (subscription)
        working-directory: contracts
        run: cargo tree -p subtrackr-subscription

      - name: Check for duplicate dependencies
        working-directory: contracts
        run: |
          DUPES=$(cargo tree --duplicate 2>/dev/null | grep -v "^$" || true)
          if [[ -n "$DUPES" ]]; then
            echo "::warning::Duplicate dependencies detected:"
            echo "$DUPES"
          else
            echo "No duplicate dependencies found."
          fi