build.yml

name: 🎬 Manim Android APK Build (Production)

on:
  push:
    branches: [ "main", "develop" ]
    paths:
      - 'main.py'
      - 'buildozer.spec'
      - '.github/workflows/manim-android-production.yml'
      - 'src/**'
  pull_request:
    branches: [ "main" ]
  workflow_dispatch:
    inputs:
      build_type:
        description: 'Build type (debug/release)'
        required: true
        default: 'debug'
        type: choice
        options:
          - debug
          - release

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

jobs:
  validate:
    name: 📋 Validate Configuration
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Check Required Files
        run: |
          [ -f "buildozer.spec" ] || (echo "❌ buildozer.spec missing!" && exit 1)
          [ -f "main.py" ] || (echo "❌ main.py missing!" && exit 1)
          echo "✅ Required files present"
      - name: Validate buildozer.spec
        run: |
          grep -q "^\[app\]" buildozer.spec || (echo "❌ Missing [app] section" && exit 1)
          grep -q "^title" buildozer.spec || (echo "❌ Missing title" && exit 1)
          grep -q "^package.name" buildozer.spec || (echo "❌ Missing package.name" && exit 1)
          grep -q "^package.domain" buildozer.spec || (echo "❌ Missing package.domain" && exit 1)
          echo "✅ buildozer.spec valid"
      - name: Check Python Syntax
        run: python3 -m py_compile main.py

  build:
    name: 🏗️ Build APK
    runs-on: ubuntu-latest
    needs: validate
    permissions:
      contents: read
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Free Disk Space
        uses: jlumbroso/free-disk-space@main
        with:
          tool-cache: false
          android: false
          dotnet: true
          haskell: true
          large-packages: true
          swap-storage: true

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

      - name: Set up Python 3.11
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'

      - uses: actions/cache@v3
        with:
          path: |
            ~/.cache/pip
            ~/.local/lib/python3.11/site-packages
          key: manim-pip-${{ hashFiles('**/requirements.txt') }}-py3.11
          restore-keys: manim-pip-py3.11

      - uses: actions/cache@v3
        with:
          path: |
            ~/.buildozer
            ~/.local/share/python-for-android
          key: buildozer-${{ hashFiles('buildozer.spec') }}
          restore-keys: buildozer-cache

      - uses: actions/cache@v3
        with:
          path: |
            ~/Android/sdk
            ~/.android
          key: android-sdk-${{ runner.os }}-${{ hashFiles('buildozer.spec') }}
          restore-keys: android-sdk-cache

      - name: Install Python & Build Dependencies
        run: |
          python -m pip install --upgrade pip setuptools wheel
          pip install Cython==0.29.33 setuptools-scm buildozer python-for-android
          pip install numpy scipy matplotlib pillow sympy pydub requests watchdog opencv-python scikit-image imageio imageio-ffmpeg

      - name: Install System Dependencies
        run: |
          sudo apt-get update -qq
          sudo apt-get install -y build-essential git curl wget pkg-config autoconf automake libtool m4 gettext cmake ninja-build
          sudo apt-get install -y libcairo2-dev libpango1.0-dev libfreetype6-dev fonts-liberation fonts-dejavu-core libharfbuzz-dev libfribidi-dev
          sudo apt-get install -y libpng-dev zlib1g-dev libjpeg-dev
          sudo apt-get install -y ffmpeg libavformat-dev libavcodec-dev libavdevice-dev libswscale-dev libswresample-dev libavutil-dev libavfilter-dev
          sudo apt-get install -y libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev libsdl2-ttf-dev
          sudo apt-get install -y libglib2.0-dev gobject-introspection libgirepository1.0-dev
          sudo apt-get install -y libxml2-dev libxslt1-dev
          sudo apt-get install -y libssl-dev libffi-dev libbz2-dev xz-utils unzip
          sudo apt-get install -y texlive texlive-latex-base texlive-latex-extra texlive-fonts-extra texlive-fonts-recommended texlive-science texlive-latex-recommended cm-super dvipng dvisvgm

      - name: Set up Android SDK/NDK
        uses: android-actions/setup-android@v3
        with:
          packages: >
            platforms;android-31
            ndk;25.2.9519653
            cmake;3.22.1
            build-tools;34.0.0

      - name: Verify Dependencies
        run: |
          pkg-config --modversion cairo
          pkg-config --modversion pango
          pkg-config --modversion freetype2
          pkg-config --modversion harfbuzz
          latex --version
          ffmpeg -version
          python -c "import numpy; import PIL; import scipy"

      - name: Configure Build
        run: |
          echo "=== buildozer.spec ==="
          cat buildozer.spec
          echo "=== main.py (first 50 lines) ==="
          head -50 main.py

      - name: Build APK (Debug/Release)
        run: |
          export BUILDOZER_LOG_LEVEL=2
          yes | buildozer android ${{ github.event.inputs.build_type }} 2>&1 | tee buildozer-build.log
        timeout-minutes: 120
        continue-on-error: true

      - name: Verify APK Output
        if: always()
        run: |
          APK_COUNT=$(find . -name "*.apk" 2>/dev/null | wc -l)
          echo "APK files found: $APK_COUNT"
          [ $APK_COUNT -gt 0 ] && find . -name "*.apk" -exec ls -lh {} \;

      - name: Upload Artifacts
        uses: actions/upload-artifact@v4
        with:
          name: manim-android-apk
          path: bin/
          retention-days: 30

      - uses: actions/upload-artifact@v4
        with:
          name: buildozer-logs
          path: buildozer-build.log
          retention-days: 30

      - uses: actions/upload-artifact@v4
        with:
          name: buildozer-work-dir
          path: .buildozer/
          retention-days: 7

      - uses: actions/upload-artifact@v4
        with:
          name: build-config
          path: buildozer.spec
          retention-days: 30

      - uses: actions/upload-artifact@v4
        with:
          name: app-source
          path: main.py
          retention-days: 30

      - name: Build Summary
        run: |
          shopt -s nullglob
          APK_FILES=(bin/*.apk)
          if [ ${#APK_FILES[@]} -gt 0 ]; then
            echo "✅ Build completed"
            ls -lh "${APK_FILES[@]}"
          else
            echo "⚠️ Build failed"
          fi

  release:
    name: 📤 Release & Upload Artifacts
    runs-on: ubuntu-latest
    needs: build
    if: always()
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4

      - uses: actions/download-artifact@v4
        with:
          name: manim-android-apk
          path: artifacts/apk/

      - uses: actions/download-artifact@v4
        with:
          name: buildozer-logs
          path: artifacts/logs/

      - uses: actions/download-artifact@v4
        with:
          name: build-config
          path: artifacts/config/

      - uses: actions/download-artifact@v4
        with:
          name: app-source
          path: artifacts/source/

      - uses: actions/download-artifact@v4
        with:
          name: buildozer-work-dir
          path: artifacts/buildozer/

      - name: Create Release Package
        run: |
          mkdir -p release-files
          cp -r artifacts/* release-files/ 2>/dev/null
          cat > release-files/MANIFEST.txt << 'EOF'
          🎬 Manim Android Build Release
          ===============================

          Contents:
          - apk/      : APK files
          - logs/     : Buildozer build logs
          - config/   : buildozer.spec
          - source/   : main.py
          - buildozer/: Full buildozer work dir

          Instructions:
          1. Extract
          2. adb install -r apk/*.apk
          3. Check logs/ if APK missing
          4. Review buildozer/ for details
          EOF
          ls -lah release-files/

      - name: Release to GitHub
        uses: softprops/action-gh-release@v1
        with:
          files: |
            release-files/apk/*.apk
            release-files/logs/*
            release-files/config/*
            release-files/source/*
            release-files/MANIFEST.txt
          draft: false
          prerelease: false
          fail_on_unmatched_files: false
          tag_name: build-${{ github.run_number }}-${{ github.run_id }}
          name: "Manim Android Build #${{ github.run_number }}"
          body: |
            🎬 **Manim Android APK Build Release**
            - Run: #${{ github.run_number }}
            - Commit: ${{ github.sha }}
            - Branch: ${{ github.ref }}
            - Date: ${{ github.event.head_commit.timestamp }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}