install-desktop.sh

#!/usr/bin/env bash
# SPDX-License-Identifier: AGPL-3.0-or-later
#
# install-desktop.sh — Install GSA desktop entry, icon, and launcher on Linux.
#
# Usage:
#   ./scripts/install-desktop.sh          # Install
#   ./scripts/install-desktop.sh --remove # Remove
#
# Author: Jonathan D.A. Jewell

set -euo pipefail

APP_NAME="game-server-admin"
APP_DISPLAY="Game Server Admin"
APP_PORT="8090"
APP_DESC="Universal game server probe, config management, and administration"

REPO_DIR="$(cd "$(dirname "$0")/.." && pwd)"
DESKTOP_FILE="$REPO_DIR/${APP_NAME}.desktop"
ICON_DIR="$HOME/.local/share/icons/hicolor/256x256/apps"
APPS_DIR="$HOME/.local/share/applications"
BIN_DIR="$HOME/.local/bin"
LAUNCHER="$BIN_DIR/${APP_NAME}-launcher"
CONFIG_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/${APP_NAME}"
CONFIG_FILE="$CONFIG_DIR/install.conf"

# --- Remove mode ---
if [[ "${1:-}" == "--remove" ]]; then
    echo "Removing ${APP_DISPLAY} desktop entry..."
    rm -f "$APPS_DIR/${APP_NAME}.desktop"
    rm -f "$ICON_DIR/${APP_NAME}.png"
    rm -f "$LAUNCHER"
    rm -f "$CONFIG_FILE"
    update-desktop-database "$APPS_DIR" 2>/dev/null || true
    echo "Done. ${APP_DISPLAY} desktop entry removed."
    exit 0
fi

# --- Install mode ---
echo "Installing ${APP_DISPLAY}..."

mkdir -p "$APPS_DIR" "$ICON_DIR" "$BIN_DIR"

# Copy desktop file
if [[ -f "$DESKTOP_FILE" ]]; then
    cp "$DESKTOP_FILE" "$APPS_DIR/${APP_NAME}.desktop"
    echo "  + Desktop entry -> $APPS_DIR/${APP_NAME}.desktop"
else
    echo "  ! Desktop file not found at $DESKTOP_FILE"
    exit 1
fi

# Copy icon if available
if [[ -f "$REPO_DIR/assets/icon-256.png" ]]; then
    cp "$REPO_DIR/assets/icon-256.png" "$ICON_DIR/${APP_NAME}.png"
    echo "  + Icon -> $ICON_DIR/${APP_NAME}.png"
elif [[ -f "$REPO_DIR/raw-assets/main/icon-256.png" ]]; then
    cp "$REPO_DIR/raw-assets/main/icon-256.png" "$ICON_DIR/${APP_NAME}.png"
    echo "  + Icon -> $ICON_DIR/${APP_NAME}.png"
else
    echo "  ! No icon found (place icon-256.png in assets/)"
fi

# Create launcher wrapper
cat > "$LAUNCHER" << LAUNCHER_EOF
#!/usr/bin/env bash
# SPDX-License-Identifier: AGPL-3.0-or-later
# ${APP_DISPLAY} Launcher — Gossamer GUI for game server administration
set -euo pipefail

REPO_DIR="$REPO_DIR"
FFI_DIR="\$REPO_DIR/src/interface/ffi"
VERISIMDB_URL="\${GSA_VERISIMDB_URL:-http://[::1]:${APP_PORT}}"
PROFILES_DIR="\${GSA_PROFILES_DIR:-\$REPO_DIR/profiles}"
MODE="\${1:---auto}"

# Check VeriSimDB is running
check_verisimdb() {
    if curl -sf "\$VERISIMDB_URL/health" >/dev/null 2>&1; then
        return 0
    else
        echo "VeriSimDB not reachable at \$VERISIMDB_URL"
        echo "Start it with: systemctl --user start gsa-verisimdb"
        echo "Or:            podman start gsa-verisimdb"
        return 1
    fi
}

# Build libgsa.so if not already built
build_ffi() {
    if [[ ! -f "\$FFI_DIR/zig-out/lib/libgsa.so" ]]; then
        echo "Building libgsa.so..."
        cd "\$FFI_DIR"
        zig build
        echo "Built: \$FFI_DIR/zig-out/lib/libgsa.so"
    fi
}

# Launch via Gossamer webview (native desktop)
launch_gossamer() {
    build_ffi
    export LD_LIBRARY_PATH="\$FFI_DIR/zig-out/lib:\${LD_LIBRARY_PATH:-}"
    export GSA_VERISIMDB_URL="\$VERISIMDB_URL"
    export GSA_PROFILES_DIR="\$PROFILES_DIR"

    if command -v gossamer &>/dev/null; then
        exec gossamer \\
            --load "\$FFI_DIR/zig-out/lib/libgsa.so" \\
            --html "\$REPO_DIR/src/gui/host.html" \\
            --title "${APP_DISPLAY}" \\
            --width 1400 --height 900
    else
        echo "gossamer binary not found in PATH"
        echo "Falling back to browser mode..."
        launch_web
    fi
}

# Launch web interface (opens browser to panel host)
launch_web() {
    echo "Opening ${APP_DISPLAY} in browser..."
    local host_html="\$REPO_DIR/src/gui/host.html"
    if [[ -f "\$host_html" ]]; then
        xdg-open "file://\$host_html" 2>/dev/null || \\
            echo "Open file://\$host_html in your browser"
    else
        echo "Panel host HTML not found at \$host_html"
        exit 1
    fi
}

# Stop VeriSimDB
stop_services() {
    echo "Stopping ${APP_DISPLAY} services..."
    systemctl --user stop gsa-verisimdb 2>/dev/null || \\
        podman stop gsa-verisimdb 2>/dev/null || \\
        echo "No running services found."
    echo "Done."
}

case "\$MODE" in
    --gossamer)
        check_verisimdb || true
        launch_gossamer
        ;;
    --web)
        check_verisimdb || true
        launch_web
        ;;
    --stop)
        stop_services
        ;;
    --auto|*)
        check_verisimdb || true
        launch_gossamer
        ;;
esac
LAUNCHER_EOF

chmod +x "$LAUNCHER"
echo "  + Launcher -> $LAUNCHER"

# Write install config
mkdir -p "$CONFIG_DIR"
cat > "$CONFIG_FILE" << CONF_EOF
# ${APP_DISPLAY} install configuration
# Generated by install-desktop.sh — $(date -Iseconds)
install_dir=$REPO_DIR
install_type=user
os=linux
verisimdb_port=${APP_PORT}
installed_at=$(date -Iseconds)
CONF_EOF
echo "  + Config -> $CONFIG_FILE"

# Update desktop database
update-desktop-database "$APPS_DIR" 2>/dev/null || true
gtk-update-icon-cache "$HOME/.local/share/icons/hicolor/" 2>/dev/null || true

echo ""
echo "Done! ${APP_DISPLAY} is now available in your application menu."
echo ""
echo "Prerequisites:"
echo "  1. Build Zig FFI:   cd src/interface/ffi && zig build"
echo "  2. Start VeriSimDB: systemctl --user start gsa-verisimdb"
echo "  3. Install Gossamer for native desktop mode (optional)"
echo ""
echo "Commands:"
echo "  ${APP_NAME}-launcher            # Start (auto-detect Gossamer/browser)"
echo "  ${APP_NAME}-launcher --web      # Force browser mode"
echo "  ${APP_NAME}-launcher --gossamer # Force Gossamer mode"
echo "  ${APP_NAME}-launcher --stop     # Stop services"
echo ""
echo "To remove: $0 --remove"