name: Build Linux Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

env:
  PYTHON_VERSION: '3.13.6'

jobs:
  build-linux:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v5
      with:
        fetch-depth: 0

    - name: Extract version from tag
      id: get_version
      shell: bash
      run: |
        tag="${GITHUB_REF_NAME}"
        version="${tag#v}"
        echo "Extracted version: $version"
        echo "VERSION=$version" >> "$GITHUB_OUTPUT"

    - name: Setup Python
      uses: actions/setup-python@v6
      with:
        python-version: ${{ env.PYTHON_VERSION }}

    - name: Cache Python dependencies
      uses: actions/cache@v4
      with:
        path: |
          venv
          ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-

    - name: Install system dependencies
      shell: bash
      run: |
        sudo apt-get update -y
        # Tools commonly required by cx_Freeze on Linux packaging
        sudo apt-get install -y --no-install-recommends \
          rpm alien fakeroot patchelf desktop-file-utils file xz-utils zsync

    - name: Create virtual environment and install dependencies
      shell: bash
      run: |
        python -m venv venv
        source venv/bin/activate
        python -m pip install --upgrade pip
        pip install --no-cache-dir -r requirements.txt
        pip install --no-cache-dir cx_Freeze yt-dlp

    - name: Prepare build variables
      shell: bash
      run: |
        version="${{ steps.get_version.outputs.VERSION }}"
        echo "VERSION=$version" >> "$GITHUB_ENV"
        arch="$(uname -m)" # x86_64 or aarch64
        echo "ARCH=$arch" >> "$GITHUB_ENV"
        echo "Prepared build variables for version: $version on $(uname -a)"

    - name: Create cx_Freeze setup script (Linux)
      shell: bash
      run: |
        cat > setup_cxfreeze.py <<'PY'
        import os
        from cx_Freeze import setup, Executable

        version = os.environ.get("VERSION", "0.0.0")

        build_exe_options = dict(
            optimize=2,
            packages=[
                "PySide6.QtCore",
                "PySide6.QtGui",
                "PySide6.QtWidgets",
                "requests",
                "PIL",
                "packaging",
                "markdown",
                "pyglet",
                "loguru",
                "setuptools",
            ],
            excludes=[
                "PySide6.QtBluetooth",
                "PySide6.QtNetwork",
                "PySide6.QtOpenGL",
                "PySide6.QtPrintSupport",
                "PySide6.QtSvg",
                "PySide6.QtTest",
                "PySide6.QtXml",
                "PySide6.QtSql",
                "PySide6.QtHelp",
                "PySide6.QtMultimedia",
                "PySide6.QtQml",
                "PySide6.QtQuick",
                "PySide6.QtWebEngineCore",
                "PIL.ImageDraw",
                "PIL.ImageFont",
                "numpy",
                "scipy",
                "wx",
                "pandas",
                "tkinter",
                "yt_dlp",
                "unittest",
                "test",
                "tests",
            ],
            include_files=[
                ("src", "src"),
                ("assets", "lib/assets"),
                ("ytsage.desktop", "share/applications/ytsage.desktop"),
                ("assets/branding/icons/icon.png", "share/pixmaps/ytsage.png"),
            ],
        )

        executables = [
            Executable(
                script="main.py",
                target_name="ytsage",
                icon="assets/branding/icons/icon.png",
            )
        ]

        setup(
            name="ytsage",
            version=version,
            description="YTSage",
            options={
                "build_exe": build_exe_options,
                # AppImage packaging
                "bdist_appimage": {
                    # If ends with .AppImage, use verbatim file name
                    "target_name": f"ytsage-v{version}.AppImage",
                },
                # RPM packaging metadata
                "bdist_rpm": {
                    "release": "1",
                    "group": "Applications/Multimedia",
                },
                # DEB packaging wraps alien to convert RPM
                "bdist_deb": {},
            },
            executables=executables,
        )
        PY

    - name: Create desktop entry
      shell: bash
      run: |
        cat > ytsage.desktop <<'DESKTOP'
        [Desktop Entry]
        Type=Application
        Name=YTSage
        Comment=YouTube downloader
        Exec=/usr/bin/ytsage %U
        Icon=ytsage
        Terminal=false
        Categories=AudioVideo;Network;Utility;
        StartupWMClass=YTSage
        DESKTOP

    - name: Build AppImage and RPM
      shell: bash
      run: |
        set -e
        source venv/bin/activate

        # Ensure a clean build and build_exe first
        python setup_cxfreeze.py build_exe

        # Remove screenshots to reduce size before packaging
        build_dir=$(ls -d build/exe.* 2>/dev/null | head -n1 || true)
        if [ -n "$build_dir" ] && [ -d "$build_dir/lib/assets/branding/screenshots" ]; then
          rm -rf "$build_dir/lib/assets/branding/screenshots"
          echo "Removed screenshots folder from $build_dir"
        fi

        # Build AppImage
        python setup_cxfreeze.py bdist_appimage

        # Build RPM
        python setup_cxfreeze.py bdist_rpm

        echo "Post-build directory listing:"
        echo "-- dist --"; ls -lah dist || true
        echo "-- build --"; ls -lah build || true

    - name: Build native DEB package
      shell: bash
      run: |
        set -e
        version="${{ steps.get_version.outputs.VERSION }}"
        arch_uname="${ARCH}"
        # Map uname -m to Debian arch names
        case "$arch_uname" in
          x86_64) deb_arch=amd64 ;;
          aarch64) deb_arch=arm64 ;;
          *) deb_arch="$arch_uname" ;;
        esac

        # Locate build output
        build_dir=$(ls -d build/exe.* 2>/dev/null | head -n1)
        if [ -z "$build_dir" ]; then
          echo "Error: build/exe.* directory not found" >&2
          exit 1
        fi

        # Staging root
        pkgroot=deb_pkg
        rm -rf "$pkgroot"
        mkdir -p "$pkgroot/DEBIAN" \
                 "$pkgroot/usr/bin" \
                 "$pkgroot/usr/share/applications" \
                 "$pkgroot/usr/share/pixmaps" \
                 "$pkgroot/opt/ytsage"

        # Install application payload under /opt/ytsage
        cp -a "$build_dir"/* "$pkgroot/opt/ytsage/"

        # Wrapper to ensure correct working directory
        cat > "$pkgroot/usr/bin/ytsage" <<'WRAP'
        #!/usr/bin/env bash
        set -euo pipefail
        APPDIR="/opt/ytsage"
        cd "$APPDIR"
        exec "$APPDIR/ytsage" "$@"
        WRAP
        chmod 0755 "$pkgroot/usr/bin/ytsage"

        # Desktop file and icon
        install -m 0644 ytsage.desktop "$pkgroot/usr/share/applications/ytsage.desktop"
        install -m 0644 assets/branding/icons/icon.png "$pkgroot/usr/share/pixmaps/ytsage.png"

        # Control file
        cat > "$pkgroot/DEBIAN/control" <<CONTROL
        Package: ytsage
        Version: ${version}
        Section: utils
        Priority: optional
        Architecture: ${deb_arch}
        Maintainer: YTSage Maintainers <noreply@example.com>
        Homepage: https://github.com/oop7/YTSage
        Description: YTSage - A modern YouTube downloader with a PySide6 interface
         Download videos, extract audio, fetch subtitles, and more.
        CONTROL

        # Post-install script to refresh desktop/menu caches (best-effort)
        cat > "$pkgroot/DEBIAN/postinst" <<'POSTINST'
        #!/bin/sh
        set -e
        if command -v update-desktop-database >/dev/null 2>&1; then
          update-desktop-database -q || true
        fi
        if command -v gtk-update-icon-cache >/dev/null 2>&1; then
          gtk-update-icon-cache -q /usr/share/icons/hicolor || true
        fi
        exit 0
        POSTINST
        chmod 0755 "$pkgroot/DEBIAN/postinst"

        # Triggers so Debian updates caches
        cat > "$pkgroot/DEBIAN/triggers" <<'TRIGGERS'
        interest-noawait /usr/share/applications
        interest-noawait /usr/share/icons/hicolor
        TRIGGERS

        # Build the deb
        deb_out="YTSage-v${version}-${deb_arch}.deb"
        dpkg-deb --build "$pkgroot" "$deb_out"

        mkdir -p artifacts
        mv "$deb_out" artifacts/
        echo "Built native DEB: artifacts/$deb_out"

    - name: Package and prepare release artifacts (.AppImage, .rpm, .deb)
      shell: bash
      run: |
        version="${{ steps.get_version.outputs.VERSION }}"
        mkdir -p artifacts

        # Copy AppImage
        appimage_src=$(ls dist/ytsage-v*.AppImage 2>/dev/null | head -n1 || true)
        if [ -n "$appimage_src" ]; then
          cp "$appimage_src" "artifacts/YTSage-v${version}-${ARCH}.AppImage"
          echo "Copied AppImage: $appimage_src -> artifacts/YTSage-v${version}-${ARCH}.AppImage"
        else
          echo "Warning: No .AppImage found in dist/"
        fi

        # Copy RPM (normalize name)
        rpm_src=$(ls dist/ytsage-*.rpm 2>/dev/null | head -n1 || true)
        if [ -n "$rpm_src" ]; then
          cp "$rpm_src" "artifacts/YTSage-v${version}-${ARCH}.rpm"
          echo "Copied RPM: $rpm_src -> artifacts/YTSage-v${version}-${ARCH}.rpm"
        else
          echo "Warning: No .rpm found in dist/"
        fi

        # DEB is already staged in artifacts by the native packaging step
        ls -1 artifacts/*.deb 2>/dev/null || echo "Warning: No .deb found in artifacts/"

        echo "Final artifacts:"
        ls -lh artifacts || true

    - name: Create/Update draft release
      uses: softprops/action-gh-release@v1
      with:
        tag_name: ${{ github.ref_name }}
        name: YTSage ${{ github.ref_name }}
        draft: true
        prerelease: false
        append_body: true
        fail_on_unmatched_files: false
        body: |
          # YTSage ${{ github.ref_name }}

          **Release Date**: ${{ github.event.head_commit.timestamp }}

          **Full Changelog**: https://github.com/${{ github.repository }}/compare/${{ github.ref_name }}
        files: |
          artifacts/*
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}