#!/bin/sh
if ! [ -x /snap/bin/chromium ]; then
    echo "" >&2
    echo "Command '$0' requires the chromium snap to be installed." >&2
    echo "Please install it with:" >&2
    echo "" >&2
    echo "snap install chromium" >&2
    echo "" >&2
    exit 1
fi

if [ "$(xdg-settings get default-web-browser)" = "chromium-browser.desktop" ]; then
  xdg-settings set default-web-browser chromium_chromium.desktop
fi

# GNOME Shell
OLD="chromium-browser.desktop"
NEW="chromium_chromium.desktop"
FAVS=$(gsettings get org.gnome.shell favorite-apps 2> /dev/null)
if echo "$FAVS" | grep -q "'$OLD'"; then
  NEWFAVS=$(echo $FAVS | sed -e "s#'$OLD'#'$NEW'#")
  gsettings set org.gnome.shell favorite-apps "$NEWFAVS"
fi

# Unity
OLD="application://chromium-browser.desktop"
NEW="application://chromium_chromium.desktop"
FAVS=$(gsettings get com.canonical.Unity.Launcher favorites 2> /dev/null)
if echo "$FAVS" | grep -q "'$OLD'"; then
  NEWFAVS=$(echo $FAVS | sed -e "s#'$OLD'#'$NEW'#")
  gsettings set com.canonical.Unity.Launcher favorites "$NEWFAVS"
fi

# MATE
OLD="/usr/share/applications/chromium-browser.desktop"
NEW="/var/lib/snapd/desktop/applications/chromium_chromium.desktop"
OBJECTS=$(gsettings get org.mate.panel object-id-list 2> /dev/null)
for object in $OBJECTS; do
  object=$(echo $object | cut -d\' -f2)
  launcher=$(gsettings get org.mate.panel.object:/org/mate/panel/objects/$object/ launcher-location)
  if [ "$launcher" = "'$OLD'" ]; then
    gsettings set org.mate.panel.object:/org/mate/panel/objects/$object/ launcher-location "'$NEW'"
  fi
done

# KDE Plasma
if which qdbus > /dev/null; then
  SCRIPT="$(cat <<-EOF
    for (var i = 0; i < panelIds.length; ++i) {
      var panel = panelById(panelIds[i]);
      var widgets = panel.widgets();
      for (var j = 0; j < widgets.length; ++j) {
        var widget = widgets[j];
        if (widget.type == "org.kde.plasma.taskmanager") {
          widget.currentConfigGroup = "General";
          var launchers = widget.readConfig("launchers");
          if (launchers.includes("chromium-browser.desktop")) {
            widget.writeConfig("launchers", launchers.replace(/chromium-browser.desktop/g, "chromium_chromium.desktop"));
          }
        }
      }
    }
EOF
  )"
  qdbus org.kde.plasmashell /PlasmaShell org.kde.PlasmaShell.evaluateScript "$SCRIPT" 2> /dev/null
fi

# TODO: handle other desktop environments

exec /snap/bin/chromium "$@"