name: Build

# Manually triggered, parameterized build pipeline (build-only — no push/deploy).
#
# Trigger: GitHub → Actions tab → "Build" → "Run workflow" → pick:
#   environment: staging | prod      (which flavor/config to build)
#   target:      all | customer | mitra | backend | control_center
#   platform:    android | ios | both   (only affects the customer/mitra apps)
#
# Runner split: iOS app jobs run on macOS runners (iOS can't build on Linux);
# everything else (Android, backend, control_center) runs on Linux.
#
# Outputs land as downloadable artifacts on the run summary page.
# See .github/workflows/README.md for details.

on:
  workflow_dispatch:
    inputs:
      environment:
        description: "Build environment"
        type: choice
        required: true
        default: staging
        options: [staging, prod]
      target:
        description: "What to build"
        type: choice
        required: true
        default: all
        options: [all, customer, mitra, backend, control_center]
      platform:
        description: "Mobile platform (apps only; macOS runners cost ~10x)"
        type: choice
        required: true
        default: android
        options: [android, ios, both]

run-name: "Build ${{ inputs.target }} (${{ inputs.environment }}, ${{ inputs.platform }})"

# Cancel an in-flight run of the same target+env+platform when a new one starts.
concurrency:
  group: build-${{ inputs.target }}-${{ inputs.environment }}-${{ inputs.platform }}
  cancel-in-progress: true

env:
  FLUTTER_VERSION: "3.41.9" # keep in sync with the team's local Flutter
  JAVA_VERSION: "17" # AGP 8 requires JDK 17
  NODE_VERSION: "20" # matches backend engines + control_center

jobs:
  # ---------------------------------------------------------------------------
  # Expand the `target` input into a JSON list the build jobs gate on.
  # `all` → every component; otherwise just the one chosen.
  # ---------------------------------------------------------------------------
  prepare:
    runs-on: ubuntu-latest
    outputs:
      targets: ${{ steps.expand.outputs.targets }}
    steps:
      - id: expand
        run: |
          if [ "${{ inputs.target }}" = "all" ]; then
            echo 'targets=["customer","mitra","backend","control_center"]' >> "$GITHUB_OUTPUT"
          else
            echo 'targets=["${{ inputs.target }}"]' >> "$GITHUB_OUTPUT"
          fi
      - run: echo "Building → ${{ steps.expand.outputs.targets }} (env=${{ inputs.environment }}, platform=${{ inputs.platform }})"

  # ---------------------------------------------------------------------------
  # customer app — ANDROID (Linux runner). Debug-signed (no keystore in repo).
  # ---------------------------------------------------------------------------
  customer-android:
    needs: prepare
    if: contains(fromJSON(needs.prepare.outputs.targets), 'customer') && (inputs.platform == 'android' || inputs.platform == 'both')
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: client_app
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: ${{ env.JAVA_VERSION }}
      - uses: subosito/flutter-action@v2
        with:
          flutter-version: ${{ env.FLUTTER_VERSION }}
          channel: stable
          cache: true
      - run: flutter pub get
      - name: Build APK
        run: |
          flutter build apk \
            --flavor ${{ inputs.environment }} \
            -t lib/main_${{ inputs.environment }}.dart \
            --dart-define-from-file=env/${{ inputs.environment }}.json
      - uses: actions/upload-artifact@v4
        with:
          name: customer-${{ inputs.environment }}-android-apk
          path: client_app/build/app/outputs/flutter-apk/app-${{ inputs.environment }}-release.apk
          if-no-files-found: error
          retention-days: 14

  # ---------------------------------------------------------------------------
  # customer app — iOS (macOS runner). Unsigned build (--no-codesign).
  # PREREQ: per-flavor Xcode schemes must exist (staging/prod). Until then this
  # fails with "The Xcode project does not define custom schemes". Distributable
  # IPAs additionally need signing certs/profiles as secrets — not set up yet.
  # ---------------------------------------------------------------------------
  customer-ios:
    needs: prepare
    if: contains(fromJSON(needs.prepare.outputs.targets), 'customer') && (inputs.platform == 'ios' || inputs.platform == 'both')
    runs-on: macos-latest
    defaults:
      run:
        working-directory: client_app
    steps:
      - uses: actions/checkout@v4
      - uses: subosito/flutter-action@v2
        with:
          flutter-version: ${{ env.FLUTTER_VERSION }}
          channel: stable
          cache: true
      - run: flutter pub get
      - name: Build iOS (unsigned)
        run: |
          flutter build ios --no-codesign \
            --flavor ${{ inputs.environment }} \
            -t lib/main_${{ inputs.environment }}.dart \
            --dart-define-from-file=env/${{ inputs.environment }}.json
      - uses: actions/upload-artifact@v4
        with:
          name: customer-${{ inputs.environment }}-ios-app
          path: client_app/build/ios/iphoneos/Runner.app
          if-no-files-found: error
          retention-days: 14

  # ---------------------------------------------------------------------------
  # mitra app — ANDROID (Linux runner).
  # ---------------------------------------------------------------------------
  mitra-android:
    needs: prepare
    if: contains(fromJSON(needs.prepare.outputs.targets), 'mitra') && (inputs.platform == 'android' || inputs.platform == 'both')
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: mitra_app
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: ${{ env.JAVA_VERSION }}
      - uses: subosito/flutter-action@v2
        with:
          flutter-version: ${{ env.FLUTTER_VERSION }}
          channel: stable
          cache: true
      - run: flutter pub get
      - name: Build APK
        run: |
          flutter build apk \
            --flavor ${{ inputs.environment }} \
            -t lib/main_${{ inputs.environment }}.dart \
            --dart-define-from-file=env/${{ inputs.environment }}.json
      - uses: actions/upload-artifact@v4
        with:
          name: mitra-${{ inputs.environment }}-android-apk
          path: mitra_app/build/app/outputs/flutter-apk/app-${{ inputs.environment }}-release.apk
          if-no-files-found: error
          retention-days: 14

  # ---------------------------------------------------------------------------
  # mitra app — iOS (macOS runner). Same PREREQ caveats as customer-ios.
  # ---------------------------------------------------------------------------
  mitra-ios:
    needs: prepare
    if: contains(fromJSON(needs.prepare.outputs.targets), 'mitra') && (inputs.platform == 'ios' || inputs.platform == 'both')
    runs-on: macos-latest
    defaults:
      run:
        working-directory: mitra_app
    steps:
      - uses: actions/checkout@v4
      - uses: subosito/flutter-action@v2
        with:
          flutter-version: ${{ env.FLUTTER_VERSION }}
          channel: stable
          cache: true
      - run: flutter pub get
      - name: Build iOS (unsigned)
        run: |
          flutter build ios --no-codesign \
            --flavor ${{ inputs.environment }} \
            -t lib/main_${{ inputs.environment }}.dart \
            --dart-define-from-file=env/${{ inputs.environment }}.json
      - uses: actions/upload-artifact@v4
        with:
          name: mitra-${{ inputs.environment }}-ios-app
          path: mitra_app/build/ios/iphoneos/Runner.app
          if-no-files-found: error
          retention-days: 14

  # ---------------------------------------------------------------------------
  # control_center — Vite SPA static build (Linux). VITE_API_BASE_URL is baked
  # in at build time. Override defaults via repo Variables CC_API_BASE_URL_PROD
  # / CC_API_BASE_URL_STAGING (Settings → Secrets and variables → Actions).
  # ---------------------------------------------------------------------------
  control_center:
    needs: prepare
    if: contains(fromJSON(needs.prepare.outputs.targets), 'control_center')
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: control_center
    env:
      VITE_API_BASE_URL: >-
        ${{ inputs.environment == 'prod'
            && (vars.CC_API_BASE_URL_PROD || 'https://internal.halobestie.com')
            || (vars.CC_API_BASE_URL_STAGING || 'https://staging-internal.halobestie.com') }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: npm
          cache-dependency-path: control_center/package-lock.json
      - run: npm ci
      - name: Build (VITE_API_BASE_URL=${{ env.VITE_API_BASE_URL }})
        run: npm run build
      - uses: actions/upload-artifact@v4
        with:
          name: control-center-${{ inputs.environment }}-dist
          path: control_center/dist
          if-no-files-found: error
          retention-days: 14

  # ---------------------------------------------------------------------------
  # backend — Docker image (Linux). Env-AGNOSTIC (config is runtime env vars),
  # built once and exported as a loadable tarball. Deploy without a registry:
  #   gunzip -c halobestie-backend-*.tar.gz | docker load
  # ---------------------------------------------------------------------------
  backend:
    needs: prepare
    if: contains(fromJSON(needs.prepare.outputs.targets), 'backend')
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Build image
        run: docker build -t halobestie-backend:${{ inputs.environment }} ./backend
      - name: Export image as tarball
        run: docker save halobestie-backend:${{ inputs.environment }} | gzip > halobestie-backend-${{ inputs.environment }}.tar.gz
      - uses: actions/upload-artifact@v4
        with:
          name: backend-${{ inputs.environment }}-image
          path: halobestie-backend-${{ inputs.environment }}.tar.gz
          if-no-files-found: error
          retention-days: 14