name: Build iOS App

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  build:
    name: Build .ipa and publish source
    runs-on: macos
    env:
      # Per-app: change APP_NAME for each app repo. Used everywhere so the
      # perlis dir name and file names always match (no hardcoded drift).
      APP_NAME: GiteaPR
      # Point xcodebuild at full Xcode without sudo (sudo hangs in CI).
      # DEVELOPER_DIR overrides the active developer directory for all steps.
      DEVELOPER_DIR: /Applications/Xcode.app/Contents/Developer
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Select Xcode
        run: |
          xcodebuild -version

      - name: Build unsigned .ipa
        run: |
          # Build the app bundle (no signing — SideStore signs on-device)
          xcodebuild \
            -project $APP_NAME.xcodeproj \
            -scheme $APP_NAME \
            -configuration Release \
            -sdk iphoneos \
            -destination 'generic/platform=iOS' \
            -derivedDataPath build \
            CODE_SIGNING_ALLOWED=NO \
            CODE_SIGNING_REQUIRED=NO \
            CODE_SIGN_IDENTITY="" \
            build

          # Locate the .app bundle
          APP_PATH=$(find build/Build/Products -name "*.app" -type d | head -1)
          echo "App bundle: $APP_PATH"

          # Package into an .ipa (Payload/App.app structure)
          mkdir -p dist/Payload
          cp -R "$APP_PATH" dist/Payload/
          cd dist
          zip -r ../$APP_NAME.ipa Payload
          cd ..
          ls -la $APP_NAME.ipa

      - name: Generate app metadata
        run: |
          # Read the version from the built app's Info.plist so it can never
          # drift from MARKETING_VERSION in the pbxproj. SideStore only shows an
          # update when the version changes, so a stale hardcoded version here
          # silently hides new builds.
          APP_PATH=$(find build/Build/Products -name "*.app" -type d | head -1)
          VERSION=$(/usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString" "$APP_PATH/Info.plist")
          BUILD=$(/usr/libexec/PlistBuddy -c "Print :CFBundleVersion" "$APP_PATH/Info.plist")
          SIZE=$(stat -f%z $APP_NAME.ipa)
          DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
          echo "version=$VERSION build=$BUILD"
          # Per-app metadata file. The perlis aggregator folds this into the
          # root source.json at https://apps.bueso.eu/source.json.
          cat > $APP_NAME.json <<EOF
          {
            "name": "GiteaPR",
            "bundleIdentifier": "com.bueso.giteapr",
            "developerName": "Luis",
            "localizedDescription": "Manage Gitea pull requests from your iPhone.",
            "iconURL": "https://apps.bueso.eu/$APP_NAME/icon.png",
            "downloadURL": "https://apps.bueso.eu/$APP_NAME/$APP_NAME.ipa",
            "version": "$VERSION",
            "versionDate": "$DATE",
            "size": $SIZE,
            "permissions": []
          }
          EOF
          cat $APP_NAME.json

      - name: Upload to source host (perlis)
        run: |
          # Upload .ipa + per-app metadata to perlis via SSH.
          # PERLIS_SSH_HOST is the Tailscale MagicDNS name (perlis.bueso.loc),
          # reachable from the iMac runner over the Tailscale mesh.
          ssh -o StrictHostKeyChecking=no \
            "${{ secrets.PERLIS_SSH_USER }}@${{ secrets.PERLIS_SSH_HOST }}" \
            "mkdir -p /mnt/appdata/ios-apps/$APP_NAME"
          scp -o StrictHostKeyChecking=no \
            $APP_NAME.ipa $APP_NAME.json \
            "${{ secrets.PERLIS_SSH_USER }}@${{ secrets.PERLIS_SSH_HOST }}:/mnt/appdata/ios-apps/$APP_NAME/"