name: PR Validation

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

jobs:
    lint:
        name: Lint Check
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v4

            - name: Setup Node.js
              uses: actions/setup-node@v6
              with:
                  node-version: '20'
                  cache: 'npm'

            - name: Install dependencies
              run: npm ci --legacy-peer-deps

            - name: Check code formatting with Prettier
              run: npx prettier --check "src/**/*.{ts,html,scss,css,json}"

            - name: Run ESLint
              run: npx eslint "src/**/*.ts"

    type-check:
        name: TypeScript Type Check
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v4

            - name: Setup Node.js
              uses: actions/setup-node@v6
              with:
                  node-version: '20'
                  cache: 'npm'

            - name: Install dependencies
              run: npm ci --legacy-peer-deps

            - name: Run TypeScript compiler
              run: npx tsc --noEmit

    test:
        name: Unit Tests
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v4

            - name: Setup Node.js
              uses: actions/setup-node@v6
              with:
                  node-version: '20'
                  cache: 'npm'

            - name: Install dependencies
              run: npm ci --legacy-peer-deps

            - name: Run unit tests
              run: npm test -- --watch=false --browsers=ChromeHeadless --code-coverage

            - name: Upload coverage reports
              uses: codecov/codecov-action@v5
              if: always()
              with:
                  token: ${{ secrets.CODECOV_TOKEN }}
                  files: ./coverage/vac-optimizer/lcov.info
                  fail_ci_if_error: false

    build:
        name: Build Application
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v4

            - name: Setup Node.js
              uses: actions/setup-node@v6
              with:
                  node-version: '20'
                  cache: 'npm'

            - name: Install dependencies
              run: npm ci --legacy-peer-deps

            - name: Build production bundle
              run: npm run build -- --configuration production
              env:
                  NG_BUILD_CACHE: '.angular/cache'

            - name: Check bundle size
              run: |
                  du -sh dist/vac-optimizer/browser
                  echo "Build completed successfully"

            - name: Upload build artifacts
              uses: actions/upload-artifact@v5
              with:
                  name: build-artifacts
                  path: dist/
                  retention-days: 7