integration-tests.yml

name: Integration Tests

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  schedule:
    # Nightly at 3am UTC — catches flaky regressions on main
    - cron: '0 3 * * *'
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: "-D warnings"

# Cancel in-progress runs for the same PR/branch
concurrency:
  group: integration-${{ github.ref }}
  cancel-in-progress: true

jobs:
  # ── T1: Rust HTTP + Postgres ──────────────────────────────────────
  t1-rust-http-postgres:
    name: "T1: Rust HTTP + Postgres"
    runs-on: ubuntu-latest
    timeout-minutes: 15

    services:
      postgres:
        image: postgres:16
        env:
          POSTGRES_USER: testuser
          POSTGRES_PASSWORD: testpass
          POSTGRES_DB: testdb
        ports:
          - 5432:5432
        options: >-
          --health-cmd "pg_isready -U testuser"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 5
          --tmpfs /var/lib/postgresql/data

    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-wasip2

      - uses: Swatinem/rust-cache@v2

      - name: Install wasmtime
        uses: bytecodealliance/actions/wasmtime/setup@v1
        with:
          version: "v41.0.0"

      - name: Build T1
        run: cargo build -p t1-rust-http-postgres 2>&1 || echo "BUILD_FAILED"
        continue-on-error: true
        id: build

      - name: Test T1
        if: steps.build.outcome == 'success'
        run: cargo test -p t1-rust-http-postgres
        env:
          DATABASE_URL: "postgres://testuser:testpass@localhost:5432/testdb"

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results-t1
          path: test-results/t1-*
          if-no-files-found: ignore
          retention-days: 7

  # ── T2: Rust HTTP + Redis + Postgres ──────────────────────────────
  t2-rust-http-redis-postgres:
    name: "T2: Rust HTTP + Redis + Postgres"
    runs-on: ubuntu-latest
    timeout-minutes: 15

    services:
      postgres:
        image: postgres:16
        env:
          POSTGRES_USER: testuser
          POSTGRES_PASSWORD: testpass
          POSTGRES_DB: testdb
        ports:
          - 5432:5432
        options: >-
          --health-cmd "pg_isready -U testuser"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 5
          --tmpfs /var/lib/postgresql/data

      redis:
        image: redis:7
        ports:
          - 6379:6379
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 5

    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-wasip2

      - uses: Swatinem/rust-cache@v2

      - name: Install wasmtime
        uses: bytecodealliance/actions/wasmtime/setup@v1
        with:
          version: "v41.0.0"

      - name: Build T2
        run: cargo build -p t2-rust-http-redis-postgres 2>&1 || echo "BUILD_FAILED"
        continue-on-error: true
        id: build

      - name: Test T2
        if: steps.build.outcome == 'success'
        run: cargo test -p t2-rust-http-redis-postgres
        env:
          DATABASE_URL: "postgres://testuser:testpass@localhost:5432/testdb"
          REDIS_URL: "redis://localhost:6379"

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results-t2
          path: test-results/t2-*
          if-no-files-found: ignore
          retention-days: 7

  # ── T3: Go HTTP + Postgres ────────────────────────────────────────
  t3-go-http-postgres:
    name: "T3: Go HTTP + Postgres"
    runs-on: ubuntu-latest
    timeout-minutes: 15

    services:
      postgres:
        image: postgres:16
        env:
          POSTGRES_USER: testuser
          POSTGRES_PASSWORD: testpass
          POSTGRES_DB: testdb
        ports:
          - 5432:5432
        options: >-
          --health-cmd "pg_isready -U testuser"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 5
          --tmpfs /var/lib/postgresql/data

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version: '1.22'

      - name: Build & Test T3
        run: test-apps/t3-go-http-postgres/test.sh
        env:
          DATABASE_URL: "postgres://testuser:testpass@localhost:5432/testdb"

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results-t3
          path: test-results/t3-*
          if-no-files-found: ignore
          retention-days: 7

  # ── T4: TypeScript HTTP + Postgres ─────────────────────────────────
  t4-ts-http-postgres:
    name: "T4: TypeScript HTTP + Postgres"
    runs-on: ubuntu-latest
    timeout-minutes: 15

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: '22'

      - uses: dtolnay/rust-toolchain@stable

      - name: Cache wasm-tools
        id: wasm-tools-cache
        uses: actions/cache@v4
        with:
          path: ~/.cargo/bin/wasm-tools
          key: wasm-tools-${{ runner.os }}-v1

      - name: Install wasm-tools
        if: steps.wasm-tools-cache.outputs.cache-hit != 'true'
        run: cargo install wasm-tools

      - name: Cache ComponentizeJS
        uses: actions/cache@v4
        with:
          path: build/componentize-js/node_modules
          key: componentize-js-npm-${{ hashFiles('scripts/build-componentize-js.sh') }}

      - name: Build ComponentizeJS toolchain
        run: scripts/build-componentize-js.sh --npm

      - name: Install T4 dependencies
        run: npm ci --prefix test-apps/t4-ts-http-postgres

      - name: Build & Test T4
        run: test-apps/t4-ts-http-postgres/test.sh

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results-t4
          path: test-results/t4-*
          if-no-files-found: ignore
          retention-days: 7

  # ── T5: Bun HTTP + Postgres ────────────────────────────────────────
  t5-bun-http-postgres:
    name: "T5: Bun HTTP + Postgres"
    runs-on: ubuntu-latest
    timeout-minutes: 15

    steps:
      - uses: actions/checkout@v4

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - uses: actions/setup-node@v4
        with:
          node-version: '22'

      - uses: dtolnay/rust-toolchain@stable

      - name: Cache wasm-tools
        id: wasm-tools-cache
        uses: actions/cache@v4
        with:
          path: ~/.cargo/bin/wasm-tools
          key: wasm-tools-${{ runner.os }}-v1

      - name: Install wasm-tools
        if: steps.wasm-tools-cache.outputs.cache-hit != 'true'
        run: cargo install wasm-tools

      - name: Cache ComponentizeJS
        uses: actions/cache@v4
        with:
          path: build/componentize-js/node_modules
          key: componentize-js-npm-${{ hashFiles('scripts/build-componentize-js.sh') }}

      - name: Build ComponentizeJS toolchain
        run: scripts/build-componentize-js.sh --npm

      - name: Install T5 dependencies
        run: bun install --frozen-lockfile --cwd test-apps/t5-bun-http-postgres

      - name: Build & Test T5
        run: test-apps/t5-bun-http-postgres/test.sh

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results-t5
          path: test-results/t5-*
          if-no-files-found: ignore
          retention-days: 7

  # ── T6: Multi-service polyglot ─────────────────────────────────────
  t6-multi-service:
    name: "T6: Multi-service Polyglot"
    runs-on: ubuntu-latest
    timeout-minutes: 15

    services:
      postgres:
        image: postgres:16
        env:
          POSTGRES_USER: testuser
          POSTGRES_PASSWORD: testpass
          POSTGRES_DB: testdb
        ports:
          - 5432:5432
        options: >-
          --health-cmd "pg_isready -U testuser"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 5
          --tmpfs /var/lib/postgresql/data

      redis:
        image: redis:7
        ports:
          - 6379:6379
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 5s
          --health-timeout 5s
          --health-retries 5

    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-wasip2

      - uses: Swatinem/rust-cache@v2

      - uses: actions/setup-go@v5
        with:
          go-version: '1.22'

      - uses: actions/setup-node@v4
        with:
          node-version: '22'

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - name: Install wasmtime
        uses: bytecodealliance/actions/wasmtime/setup@v1
        with:
          version: "v41.0.0"

      - name: Cache wasm-tools
        id: wasm-tools-cache
        uses: actions/cache@v4
        with:
          path: ~/.cargo/bin/wasm-tools
          key: wasm-tools-${{ runner.os }}-v1

      - name: Install wasm-tools
        if: steps.wasm-tools-cache.outputs.cache-hit != 'true'
        run: cargo install wasm-tools

      - name: Cache ComponentizeJS
        uses: actions/cache@v4
        with:
          path: build/componentize-js/node_modules
          key: componentize-js-npm-${{ hashFiles('scripts/build-componentize-js.sh') }}

      - name: Build ComponentizeJS toolchain
        run: scripts/build-componentize-js.sh --npm

      - name: Build all T6 services
        run: |
          echo "Building gateway (Rust)..."
          cargo build -p t6-gateway-svc

          echo "Building user-svc (Go)..."
          test-apps/t6-multi-service/user-svc/build.sh --standalone

          echo "Building notification-svc (TypeScript)..."
          test-apps/t6-multi-service/notification-svc/build.sh --standalone

          echo "Building analytics-svc (Bun)..."
          test-apps/t6-multi-service/analytics-svc/build.sh --standalone

      - name: Test T6 multi-service integration
        run: scripts/test-all.sh --only t6
        env:
          DATABASE_URL: "postgres://testuser:testpass@localhost:5432/testdb"
          REDIS_URL: "redis://localhost:6379"

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results-t6
          path: test-results/t6-*
          if-no-files-found: ignore
          retention-days: 7

  # ── Summary gate ───────────────────────────────────────────────────
  integration-summary:
    name: Integration Summary
    runs-on: ubuntu-latest
    if: always()
    needs:
      - t1-rust-http-postgres
      - t2-rust-http-redis-postgres
      - t3-go-http-postgres
      - t4-ts-http-postgres
      - t5-bun-http-postgres
      - t6-multi-service

    steps:
      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: test-results/
          pattern: test-results-*
          merge-multiple: true

      - name: Annotate trigger context
        run: |
          if [ "${{ github.event_name }}" = "schedule" ]; then
            echo "::notice::This run was triggered by the nightly schedule (cron). Failures may indicate flaky regressions."
            echo "> **Nightly scheduled run** — failures here may indicate flaky regressions on main." >> "$GITHUB_STEP_SUMMARY"
            echo "" >> "$GITHUB_STEP_SUMMARY"
          fi

      - name: Summary
        run: |
          echo "## Integration Test Results" >> "$GITHUB_STEP_SUMMARY"
          echo "" >> "$GITHUB_STEP_SUMMARY"
          echo "| Test App | Status |" >> "$GITHUB_STEP_SUMMARY"
          echo "|----------|--------|" >> "$GITHUB_STEP_SUMMARY"
          echo "| T1: Rust HTTP + Postgres | ${{ needs.t1-rust-http-postgres.result }} |" >> "$GITHUB_STEP_SUMMARY"
          echo "| T2: Rust HTTP + Redis + Postgres | ${{ needs.t2-rust-http-redis-postgres.result }} |" >> "$GITHUB_STEP_SUMMARY"
          echo "| T3: Go HTTP + Postgres | ${{ needs.t3-go-http-postgres.result }} |" >> "$GITHUB_STEP_SUMMARY"
          echo "| T4: TypeScript HTTP + Postgres | ${{ needs.t4-ts-http-postgres.result }} |" >> "$GITHUB_STEP_SUMMARY"
          echo "| T5: Bun HTTP + Postgres | ${{ needs.t5-bun-http-postgres.result }} |" >> "$GITHUB_STEP_SUMMARY"
          echo "| T6: Multi-service Polyglot | ${{ needs.t6-multi-service.result }} |" >> "$GITHUB_STEP_SUMMARY"
          echo "" >> "$GITHUB_STEP_SUMMARY"

          FAILED=0
          for result in \
            "${{ needs.t1-rust-http-postgres.result }}" \
            "${{ needs.t2-rust-http-redis-postgres.result }}" \
            "${{ needs.t3-go-http-postgres.result }}" \
            "${{ needs.t4-ts-http-postgres.result }}" \
            "${{ needs.t5-bun-http-postgres.result }}" \
            "${{ needs.t6-multi-service.result }}"; do
            if [ "$result" = "failure" ]; then
              FAILED=$((FAILED + 1))
            fi
          done

          if [ "$FAILED" -gt 0 ]; then
            echo "**$FAILED test app(s) failed.**" >> "$GITHUB_STEP_SUMMARY"
            exit 1
          else
            echo "All integration tests passed." >> "$GITHUB_STEP_SUMMARY"
          fi