#!/usr/bin/env bash
# detect_platform.sh — Print the Inkscape config root for this system.
# Usage: source scripts/detect_platform.sh && echo "$INKSCAPE_CONFIG"
# Sets: INKSCAPE_CONFIG (path), INKSCAPE_INSTALL_METHOD (flatpak|snap|native)

set -euo pipefail

_detect_inkscape_config() {
    # Flatpak takes priority — most common modern Linux install
    local flatpak_config="$HOME/.var/app/org.inkscape.Inkscape/config/inkscape"
    if [[ -d "$flatpak_config" ]] || flatpak list 2>/dev/null | grep -q "org.inkscape.Inkscape"; then
        export INKSCAPE_CONFIG="$flatpak_config"
        export INKSCAPE_INSTALL_METHOD="flatpak"
        return 0
    fi

    # Snap
    local snap_config="$HOME/snap/inkscape/current/.config/inkscape"
    if [[ -d "$snap_config" ]] || snap list 2>/dev/null | grep -q "^inkscape "; then
        export INKSCAPE_CONFIG="$snap_config"
        export INKSCAPE_INSTALL_METHOD="snap"
        return 0
    fi

    # Native / XDG
    local xdg_config="${XDG_CONFIG_HOME:-$HOME/.config}/inkscape"
    export INKSCAPE_CONFIG="$xdg_config"
    export INKSCAPE_INSTALL_METHOD="native"
    return 0
}

_detect_inkscape_config