ci.yml

name: UET Research Corpus CI

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

env:
  CARGO_TERM_COLOR: always

jobs:
  # ==================== Rust Backend ====================
  rust-check:
    name: Rust Check
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v4

    - name: Detect Rust workspace
      id: rust-workspace
      run: |
        if [ -f Cargo.toml ]; then
          echo "present=true" >> "$GITHUB_OUTPUT"
        else
          echo "present=false" >> "$GITHUB_OUTPUT"
          echo "No root Cargo.toml found; skipping Rust checks for this corpus-only checkout."
        fi
    
    - name: Install Rust
      if: steps.rust-workspace.outputs.present == 'true'
      uses: dtolnay/rust-toolchain@stable
      with:
        components: clippy, rustfmt
    
    - name: Cache cargo
      if: steps.rust-workspace.outputs.present == 'true'
      uses: actions/cache@v4
      with:
        path: |
          ~/.cargo/registry
          ~/.cargo/git
          target
        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
        restore-keys: |
          ${{ runner.os }}-cargo-
    
    - name: Check formatting
      if: steps.rust-workspace.outputs.present == 'true'
      run: cargo fmt --all -- --check
    
    - name: Clippy
      if: steps.rust-workspace.outputs.present == 'true'
      run: cargo clippy --workspace --all-targets -- -D warnings
      continue-on-error: true
    
    - name: Build
      if: steps.rust-workspace.outputs.present == 'true'
      run: cargo build --release --workspace

  # ==================== Next.js Frontend ====================
  web-check:
    name: Next.js Check
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./uet_web
    
    steps:
    - uses: actions/checkout@v4

    - name: Detect Next.js app
      id: next-app
      working-directory: .
      run: |
        if [ -f uet_web/package-lock.json ]; then
          echo "present=true" >> "$GITHUB_OUTPUT"
        else
          echo "present=false" >> "$GITHUB_OUTPUT"
          echo "No uet_web/package-lock.json found; skipping Next.js checks for this corpus-only checkout."
        fi
    
    - name: Setup Node.js
      if: steps.next-app.outputs.present == 'true'
      uses: actions/setup-node@v4
      with:
        node-version: '20'
        cache: 'npm'
        cache-dependency-path: './uet_web/package-lock.json'
    
    - name: Install dependencies
      if: steps.next-app.outputs.present == 'true'
      run: npm ci --legacy-peer-deps
    
    - name: Lint
      if: steps.next-app.outputs.present == 'true'
      run: npm run lint
      continue-on-error: true
    
    - name: Build
      if: steps.next-app.outputs.present == 'true'
      run: npm run build
      env:
        NEXT_TELEMETRY_DISABLED: 1
        DATABASE_URL: "postgresql://fake:fake@localhost:5432/fake"

  # ==================== Optional Python Service Checks ====================
  python-test:
    name: Python Tests
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ["3.10", "3.11", "3.12"]
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v5
      with:
        python-version: ${{ matrix.python-version }}
    
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install pytest
    
    - name: Run optional Python agent tests
      run: |
        if find services_and_experiments/uet_agents -type f \( -name 'test_*.py' -o -name '*_test.py' \) | grep -q .; then
          pytest services_and_experiments/uet_agents/ -v --tb=short
        else
          echo "No service tests found; skipping optional agent checks."
        fi

  # ==================== Docker Build ====================
  docker-build:
    name: Docker Build
    runs-on: ubuntu-latest
    needs: [rust-check, web-check]
    if: vars.UET_PLATFORM_DEPLOY == 'true' && github.event_name == 'push' && github.ref == 'refs/heads/main'
    
    steps:
    - uses: actions/checkout@v4

    - name: Detect Dockerfiles
      id: dockerfiles
      run: |
        if [ -f Dockerfile.api ] || [ -f Dockerfile.web ] || [ -f Dockerfile.agents ]; then
          echo "present=true" >> "$GITHUB_OUTPUT"
        else
          echo "present=false" >> "$GITHUB_OUTPUT"
          echo "No platform Dockerfiles found; skipping Docker image builds for this corpus-only checkout."
        fi
    
    - name: Set up Docker Buildx
      if: steps.dockerfiles.outputs.present == 'true'
      uses: docker/setup-buildx-action@v3
    
    - name: Build API image
      if: steps.dockerfiles.outputs.present == 'true' && hashFiles('Dockerfile.api') != ''
      uses: docker/build-push-action@v5
      with:
        context: .
        file: ./Dockerfile.api
        push: false
        tags: uet_api:${{ github.sha }}
        cache-from: type=gha
        cache-to: type=gha,mode=max
    
    - name: Build Web image
      if: steps.dockerfiles.outputs.present == 'true' && hashFiles('Dockerfile.web') != ''
      uses: docker/build-push-action@v5
      with:
        context: .
        file: ./Dockerfile.web
        push: false
        tags: uet_web:${{ github.sha }}
        build-args: |
          DATABASE_URL=postgresql://fake:fake@localhost:5432/fake
        cache-from: type=gha
        cache-to: type=gha,mode=max
    
    - name: Build Agent image
      if: steps.dockerfiles.outputs.present == 'true' && hashFiles('Dockerfile.agents') != ''
      uses: docker/build-push-action@v5
      with:
        context: .
        file: ./Dockerfile.agents
        push: false
        tags: uet_agents:${{ github.sha }}
        cache-from: type=gha
        cache-to: type=gha,mode=max

  # ==================== Optional future-platform deployment ====================
  deploy:
    name: Deploy to Railway
    runs-on: ubuntu-latest
    needs: [docker-build]
    if: vars.UET_PLATFORM_DEPLOY == 'true' && github.event_name == 'push' && github.ref == 'refs/heads/main'
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Install Railway CLI
      run: npm install -g @railway/cli
    
    - name: Deploy API
      run: railway up --service uet-api
      env:
        RAILWAY_TOKEN: ${{ secrets.RAILWAY_API_TOKEN }}
      continue-on-error: true
    
    - name: Deploy Web
      run: railway up --service uet-web
      env:
        RAILWAY_TOKEN: ${{ secrets.RAILWAY_WEB_TOKEN }}
      continue-on-error: true