name: CI - Lint, Test & Coverage

on:
  push:
    branches: [ main, development, 'feature/**' ]
  pull_request:
    branches: [ main, development ]

jobs:
  backend-lint:
    name: Backend - Go Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.22'
      - name: golangci-lint
        uses: golangci/golangci-lint-action@v6
        with:
          version: latest
          working-directory: backend

  backend-test:
    name: Backend - Go Tests
    runs-on: ubuntu-latest
    needs: [backend-lint]
    steps:
      - uses: actions/checkout@v4
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.22'
      - name: Cache Go modules
        uses: actions/cache@v4
        with:
          path: ~/go/pkg/mod
          # Use the backend module's go.sum for cache key so the cache
          # restores correctly when modules change.
          key: ${{ runner.os }}-go-${{ hashFiles('backend/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-
      - name: Run tests
        working-directory: backend
        run: go test -v -race -coverprofile=coverage.out ./...
      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v4
        with:
          file: backend/coverage.out
          flags: backend
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  frontend-lint:
    name: Frontend - ESLint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version: '20'
      - name: Cache node modules
        uses: actions/cache@v4
        with:
          path: frontend/node_modules
          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-
      - name: Install dependencies
        working-directory: frontend
        run: npm ci
      - name: Run ESLint
        working-directory: frontend
        run: npm run lint

  frontend-build:
    name: Frontend - Build
    runs-on: ubuntu-latest
    needs: [frontend-lint]
    steps:
      - uses: actions/checkout@v4
      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version: '20'
      - name: Cache node modules
        uses: actions/cache@v4
        with:
          path: frontend/node_modules
          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-
      - name: Install dependencies
        working-directory: frontend
        run: npm ci
      - name: Build frontend
        working-directory: frontend
        run: npm run build