name: Build Debian 13 .deb Package

on:
  # Build on releases
  release:
    types: [published]
  # Allow manual trigger
  workflow_dispatch:
    inputs:
      build_type:
        description: 'Build type (all, basic, hardsubx)'
        required: false
        default: 'all'
  # Build on pushes to workflow file for testing
  push:
    paths:
      - '.github/workflows/build_deb_debian13.yml'

jobs:
  build-deb:
    runs-on: ubuntu-latest
    container:
      image: debian:trixie
    strategy:
      fail-fast: false
      matrix:
        build_type: [basic, hardsubx]

    steps:
      - name: Check if should build this variant
        id: should_build
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            INPUT_TYPE="${{ github.event.inputs.build_type }}"
            if [ "$INPUT_TYPE" = "all" ] || [ "$INPUT_TYPE" = "${{ matrix.build_type }}" ]; then
              echo "should_build=true" >> $GITHUB_OUTPUT
            else
              echo "should_build=false" >> $GITHUB_OUTPUT
            fi
          else
            echo "should_build=true" >> $GITHUB_OUTPUT
          fi

      - name: Install git and dependencies for checkout
        if: steps.should_build.outputs.should_build == 'true'
        run: |
          apt-get update
          apt-get install -y git ca-certificates

      - name: Checkout repository
        if: steps.should_build.outputs.should_build == 'true'
        uses: actions/checkout@v6

      - name: Get version
        if: steps.should_build.outputs.should_build == 'true'
        id: version
        run: |
          # Extract version from source or use tag
          if [ "${{ github.event_name }}" = "release" ]; then
            VERSION="${{ github.event.release.tag_name }}"
            VERSION="${VERSION#v}"  # Remove 'v' prefix if present
          else
            # Extract version from lib_ccx.h (e.g., #define VERSION "0.96.5")
            VERSION=$(grep -oP '#define VERSION "\K[^"]+' src/lib_ccx/lib_ccx.h || echo "0.96")
          fi
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "Building version: $VERSION"

      - name: Install base dependencies
        if: steps.should_build.outputs.should_build == 'true'
        run: |
          apt-get install -y --no-install-recommends \
            build-essential \
            cmake \
            pkg-config \
            zlib1g-dev \
            libpng-dev \
            libjpeg-dev \
            libfreetype-dev \
            libxml2-dev \
            libcurl4-gnutls-dev \
            libssl-dev \
            clang \
            libclang-dev \
            tesseract-ocr \
            libtesseract-dev \
            libleptonica-dev \
            patchelf \
            curl

      - name: Install FFmpeg dependencies (HardSubX)
        if: steps.should_build.outputs.should_build == 'true' && matrix.build_type == 'hardsubx'
        run: |
          apt-get install -y --no-install-recommends \
            libavcodec-dev \
            libavformat-dev \
            libavutil-dev \
            libswscale-dev \
            libswresample-dev \
            libavfilter-dev \
            libavdevice-dev

      - name: Install Rust toolchain
        if: steps.should_build.outputs.should_build == 'true'
        run: |
          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
          echo "$HOME/.cargo/bin" >> $GITHUB_PATH

      - name: Build GPAC
        if: steps.should_build.outputs.should_build == 'true'
        run: |
          git clone -b abi-16.4 --depth 1 https://github.com/gpac/gpac
          cd gpac
          ./configure --prefix=/usr
          make -j$(nproc)
          make install-lib
          ldconfig

      - name: Build CCExtractor
        if: steps.should_build.outputs.should_build == 'true'
        run: |
          export PATH="$HOME/.cargo/bin:$PATH"
          mkdir build && cd build
          if [ "${{ matrix.build_type }}" = "hardsubx" ]; then
            cmake ../src -DCMAKE_BUILD_TYPE=Release -DWITH_OCR=ON -DWITH_HARDSUBX=ON
          else
            cmake ../src -DCMAKE_BUILD_TYPE=Release -DWITH_OCR=ON
          fi
          make -j$(nproc)

      - name: Test build
        if: steps.should_build.outputs.should_build == 'true'
        run: ./build/ccextractor --version

      - name: Create .deb package structure
        if: steps.should_build.outputs.should_build == 'true'
        id: create_deb
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          VARIANT="${{ matrix.build_type }}"

          if [ "$VARIANT" = "basic" ]; then
            PKG_NAME="ccextractor_${VERSION}_debian13_amd64"
          else
            PKG_NAME="ccextractor-${VARIANT}_${VERSION}_debian13_amd64"
          fi

          mkdir -p ${PKG_NAME}/DEBIAN
          mkdir -p ${PKG_NAME}/usr/bin
          mkdir -p ${PKG_NAME}/usr/lib/ccextractor
          mkdir -p ${PKG_NAME}/usr/share/doc/ccextractor
          mkdir -p ${PKG_NAME}/usr/share/man/man1

          # Copy binary
          cp build/ccextractor ${PKG_NAME}/usr/bin/

          # Copy GPAC library
          cp /usr/lib/libgpac.so* ${PKG_NAME}/usr/lib/ccextractor/

          # Set rpath so ccextractor finds bundled libgpac
          patchelf --set-rpath '/usr/lib/ccextractor:$ORIGIN/../lib/ccextractor' ${PKG_NAME}/usr/bin/ccextractor

          # Copy documentation
          cp docs/CHANGES.TXT ${PKG_NAME}/usr/share/doc/ccextractor/changelog
          cp LICENSE.txt ${PKG_NAME}/usr/share/doc/ccextractor/copyright
          gzip -9 -n ${PKG_NAME}/usr/share/doc/ccextractor/changelog

          # Create control file
          if [ "$VARIANT" = "basic" ]; then
            PKG_DESCRIPTION="CCExtractor - closed captions and teletext subtitle extractor"
          else
            PKG_DESCRIPTION="CCExtractor (with HardSubX) - closed captions and teletext subtitle extractor"
          fi

          INSTALLED_SIZE=$(du -sk ${PKG_NAME}/usr | cut -f1)

          # Determine dependencies based on build variant (Debian 13 Trixie)
          if [ "$VARIANT" = "hardsubx" ]; then
            DEPENDS="libc6, libtesseract5, libleptonica6, libcurl3t64-gnutls, libavcodec61, libavformat61, libavutil59, libswscale8, libavdevice61, libswresample5, libavfilter10"
          else
            DEPENDS="libc6, libtesseract5, libleptonica6, libcurl3t64-gnutls"
          fi

          cat > ${PKG_NAME}/DEBIAN/control << CTRL
          Package: ccextractor
          Version: ${VERSION}
          Section: utils
          Priority: optional
          Architecture: amd64
          Installed-Size: ${INSTALLED_SIZE}
          Depends: ${DEPENDS}
          Maintainer: CCExtractor Development Team <carlos@ccextractor.org>
          Homepage: https://www.ccextractor.org
          Description: ${PKG_DESCRIPTION}
           CCExtractor is a tool that extracts closed captions and teletext subtitles
           from video files and streams. It supports a wide variety of input formats
           including MPEG, H.264/AVC, H.265/HEVC, MP4, MKV, WTV, and transport streams.
           .
           This package includes a bundled GPAC library for MP4 support.
           Built for Debian 13 (Trixie).
          CTRL

          # Remove leading spaces from control file
          sed -i 's/^          //' ${PKG_NAME}/DEBIAN/control

          # Create postinst to update library cache
          cat > ${PKG_NAME}/DEBIAN/postinst << 'POSTINST'
          #!/bin/sh
          set -e
          ldconfig
          POSTINST
          chmod 755 ${PKG_NAME}/DEBIAN/postinst

          # Create postrm to update library cache
          cat > ${PKG_NAME}/DEBIAN/postrm << 'POSTRM'
          #!/bin/sh
          set -e
          ldconfig
          POSTRM
          chmod 755 ${PKG_NAME}/DEBIAN/postrm

          # Set permissions
          chmod 755 ${PKG_NAME}/usr/bin/ccextractor
          chmod 755 ${PKG_NAME}/usr/lib/ccextractor
          find ${PKG_NAME}/usr/lib/ccextractor -name "*.so*" -exec chmod 644 {} \;

          # Build the .deb
          dpkg-deb --build --root-owner-group ${PKG_NAME}

          echo "deb_name=${PKG_NAME}.deb" >> $GITHUB_OUTPUT

      - name: Test .deb package
        if: steps.should_build.outputs.should_build == 'true'
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          VARIANT="${{ matrix.build_type }}"

          if [ "$VARIANT" = "basic" ]; then
            PKG_NAME="ccextractor_${VERSION}_debian13_amd64"
          else
            PKG_NAME="ccextractor-${VARIANT}_${VERSION}_debian13_amd64"
          fi

          # Install and test (apt handles dependencies automatically)
          apt-get update
          apt-get install -y ./${PKG_NAME}.deb
          ccextractor --version

      - name: Get .deb filename
        if: steps.should_build.outputs.should_build == 'true'
        id: deb_name
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          VARIANT="${{ matrix.build_type }}"

          if [ "$VARIANT" = "basic" ]; then
            echo "name=ccextractor_${VERSION}_debian13_amd64.deb" >> $GITHUB_OUTPUT
          else
            echo "name=ccextractor-${VARIANT}_${VERSION}_debian13_amd64.deb" >> $GITHUB_OUTPUT
          fi

      - name: Upload .deb artifact
        if: steps.should_build.outputs.should_build == 'true'
        uses: actions/upload-artifact@v7
        with:
          name: ${{ steps.deb_name.outputs.name }}
          path: ${{ steps.deb_name.outputs.name }}

      - name: Upload to Release
        if: steps.should_build.outputs.should_build == 'true' && github.event_name == 'release'
        uses: softprops/action-gh-release@v3
        with:
          files: ${{ steps.deb_name.outputs.name }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}