#!/bin/bash
#
# Download Ubuntu .deb packages for offline use
# Run this script inside Ubuntu 26.04 container
#
# Usage: ./download-deb-packages.sh [output-directory]
#

set -euo pipefail

OUTPUT_DIR="${1:-./offline-cache/deb}"

echo "========================================="
echo "Downloading Ubuntu .deb Packages"
echo "========================================="
echo "Output directory: ${OUTPUT_DIR}"
echo "========================================="

# Run download in Docker container with proper environment
echo ""
echo "Running download in Ubuntu 26.04 Docker container..."
echo ""

docker run --rm \
    -v "$(pwd)/${OUTPUT_DIR}:/cache/deb" \
    ubuntu:26.04 \
    bash -c "
set -euo pipefail

OUTPUT_DIR='/cache/deb'

# List of all required packages
PACKAGES=(
    # Build tools
    build-essential
    cmake
    ninja-build
    clang
    gnupg
    curl
    jq
    openssh-client
    pkg-config
    unzip
    
    # Qt6 libraries
    libqt6svg6-dev
    libkf6texttemplate-dev
    libqt6core6
    libqt6gui6
    libqt6widgets6
    libqt6sql6
    libqt6sql6-psql
    libqt6test6
    qt6-base-dev
    qt6-l10n-tools
    qt6-serialport-dev
    qt6-svg-dev
    qt6-tools-dev-tools
    qt6-tools-dev
    qt6-websockets-dev
    
    # Other libraries
    libgl1-mesa-dev
    libxkbcommon-x11-0
    libfontconfig1
    libdbus-1-3
    libpulse0
    libxcb-glx0
    libxcb-cursor0
    libbz2-dev
    libpoppler-dev
    libpoppler-qt6-dev
    libboost-dev
    libgeographiclib-dev
    libbotan-3-dev
    libssl-dev
    libxml2-dev
    libicu-dev
    
    # Testing
    libgtest-dev
    libgmock-dev
    
    # Database
    libpq-dev
    postgresql-server-dev-all
    
    # Multimedia
    libvlc-dev
    vlc-plugin-base
    
    # Python
    python3
    python3-venv
    python3-pip
    
    # Packaging
    rpm
)

mkdir -p \"\${OUTPUT_DIR}\"

echo 'Updating package lists...'
apt-get update -qq

echo \"Downloading \${#PACKAGES[@]} packages...\"

# Download all packages with dependencies
for pkg in \"\${PACKAGES[@]}\"; do
    echo \"  Downloading \${pkg}...\"
    apt-get download \"\${pkg}\" || echo \"Warning: Could not download \${pkg}\"
done

# Move all .deb files to output directory
echo 'Collecting .deb packages...'
find / -name \"*.deb\" -type f 2>/dev/null | head -1000 | xargs -I {} cp {} \"\${OUTPUT_DIR}/\" || true

DEB_COUNT=\$(ls -1 \"\${OUTPUT_DIR}\"/*.deb 2>/dev/null | wc -l || echo 0)
echo ''
echo '========================================='
echo 'Download Complete!'
echo '========================================='
echo \"Downloaded \${DEB_COUNT} .deb packages to \${OUTPUT_DIR}\"
echo '========================================='

# Create package list for reference
cat > /cache/package-list.txt << EOF
# Ubuntu 26.04 Package List
# Generated: \$(date -u +\"%Y-%m-%dT%H:%M:%SZ\")
# Total packages: \${DEB_COUNT}

\$(ls -1 \"\${OUTPUT_DIR}\"/*.deb 2>/dev/null | xargs -n1 basename 2>/dev/null | sort || echo 'No packages downloaded')
EOF

echo 'Package list created: /cache/package-list.txt'
"