build.yml

name: Monorepo Build

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:
    inputs:
      build_target:
        description: "Choose what to build"
        required: true
        default: "both"
        type: choice
        options:
          - ui
          - api
          - both

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  detect-changes:
    runs-on: ubuntu-latest
    outputs:
      ui_changed: ${{ steps.changes.outputs.ui }}
      api_changed: ${{ steps.changes.outputs.api }}
    steps:
      - uses: actions/checkout@v4
      - uses: dorny/paths-filter@v2
        if: github.event_name == 'pull_request' || github.event_name == 'push'
        id: changes
        with:
          filters: |
            ui:
              - 'apps/ui/**'
            api:
              - 'apps/api/**'
          before: ${{ github.event.before }}

  build-ui:
    needs: detect-changes
    if: >
      github.event_name == 'workflow_dispatch' && (github.event.inputs.build_target == 'ui' || github.event.inputs.build_target == 'both') ||
      (github.event_name != 'workflow_dispatch' && needs.detect-changes.outputs.ui_changed == 'true')
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v1
        with:
          bun-version: latest
      - name: Cache Bun dependencies
        uses: actions/cache@v3
        with:
          path: ~/.bun/install/cache
          key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lockb') }}
          restore-keys: |
            ${{ runner.os }}-bun-
      - name: Cache Next.js build
        uses: actions/cache@v3
        with:
          path: apps/ui/.next/cache
          key: ${{ runner.os }}-nextjs-${{ hashFiles('apps/ui/**/*.[jt]s', 'apps/ui/**/*.[jt]sx') }}
          restore-keys: |
            ${{ runner.os }}-nextjs-
      - name: Build UI
        run: |
          cd apps/ui
          bun install
          bun next build
      - name: Test UI
        run: |
          cd apps/ui
          bun test

  test-api:
    needs: detect-changes
    if: >
      github.event_name == 'workflow_dispatch' && (github.event.inputs.build_target == 'api' || github.event.inputs.build_target == 'both') ||
      (github.event_name != 'workflow_dispatch' && needs.detect-changes.outputs.api_changed == 'true')
    runs-on: ubuntu-latest
    env:
      DB_URL: ${{ secrets.DB_URL }}
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v1
        with:
          bun-version: latest
      - name: Cache Bun dependencies
        uses: actions/cache@v3
        with:
          path: ~/.bun/install/cache
          key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lockb') }}
          restore-keys: |
            ${{ runner.os }}-bun-
      - name: Build API
        run: |
          cd apps/api
          bun install
          bun test