name: Release Build

on:
  push:
    tags:
      - 'v*.*.*'
  workflow_dispatch:
    inputs:
      version:
        description: 'Version number (e.g., 1.0.0)'
        required: true
        type: string

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Set up JDK 17
      uses: actions/setup-java@v4
      with:
        java-version: '17'
        distribution: 'temurin'
        cache: gradle

    - name: Grant execute permission for gradlew
      run: chmod +x gradlew

    - name: Build release APK
      run: ./gradlew assembleRelease --no-daemon

    - name: Sign APK
      if: env.KEYSTORE_FILE != ''
      env:
        KEYSTORE_FILE: ${{ secrets.KEYSTORE_FILE }}
        KEYSTORE_PASSWORD: ${{ secrets.KEYSTORE_PASSWORD }}
        KEY_ALIAS: ${{ secrets.KEY_ALIAS }}
        KEY_PASSWORD: ${{ secrets.KEY_PASSWORD }}
      run: |
        echo "Signing would happen here with keystore"
        # Actual signing requires keystore setup

    - name: Get version
      id: version
      run: |
        if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
          echo "VERSION=${{ inputs.version }}" >> $GITHUB_OUTPUT
        else
          echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
        fi

    - name: Create Release
      uses: softprops/action-gh-release@v1
      with:
        name: OmniKey v${{ steps.version.outputs.VERSION }}
        tag_name: v${{ steps.version.outputs.VERSION }}
        draft: false
        prerelease: true
        generate_release_notes: true
        body: |
          ## OmniKey v${{ steps.version.outputs.VERSION }}

          ### ⚠️ Pre-Release Notice
          This is a **backend-only release**. The keyboard service and all engines are functional, but the UI layer (KeyboardView, Settings screens) is not yet implemented.

          ### What's Included
          - ✅ Complete InputMethodService implementation
          - ✅ 11 specialized engines (Prediction, Swipe, Code, Writer, etc.)
          - ✅ 50+ user preferences with DataStore
          - ✅ 9 Room database entities
          - ✅ ML Kit integration
          - ✅ 10 built-in themes
          - ✅ Full gesture system

          ### What's Missing
          - ❌ KeyboardView rendering
          - ❌ Settings UI screens
          - ❌ Theme editor
          - ❌ Emoji picker

          ### For Developers
          This release is perfect for:
          - Learning Android keyboard architecture
          - Contributing UI implementation
          - Forking for custom keyboards
          - Studying production Kotlin code

          See `IMPLEMENTATION_STATUS.md` for details.

          ### Installation
          1. Download `omnikey-release.apk`
          2. Install on Android device
          3. Enable in Settings → System → Languages & Input
          4. Currently shows blank keyboard (UI not implemented)

          ### Next Release
          - [ ] KeyboardView implementation
          - [ ] Basic settings UI
          - [ ] Theme selector
          - [ ] Clipboard UI
        files: |
          app/build/outputs/apk/release/*.apk
          README.md
          FEATURES.md
          IMPLEMENTATION_STATUS.md

    - name: Upload to Play Store (Future)
      if: false
      run: |
        echo "Play Store upload would happen here"
        # Requires Play Store API setup