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#!/bin/bash

if [ ! -d /mnt/c ]; then
  # Mac
  osascript -e 'tell application "System Events" to tell appearance preferences to set dark mode to not dark mode'

  if [ "$(osascript -e 'tell application "System Events" to tell appearance preferences to get dark mode')" == "true" ]; then
    osascript -e '
      tell application "Terminal"
          set defaultSettings to first settings set whose name is "One Dark"
          set currentSettings to defaultSettings
          repeat with aWindow in windows
              repeat with aTab in tabs of aWindow
                  set current settings of aTab to currentSettings
              end repeat
          end repeat
      end tell' 2>/dev/null
  else
    osascript -e '
      tell application "Terminal"
          set defaultSettings to first settings set whose name is "One Light"
          set currentSettings to defaultSettings
          repeat with aWindow in windows
              repeat with aTab in tabs of aWindow
                  set current settings of aTab to currentSettings
              end repeat
          end repeat
      end tell' 2>/dev/null
  fi
else
  # Windows in WSL
  WINHOME=$(wslpath "$(cmd.exe /C "echo %USERPROFILE%" 2>/dev/null | tr -d '\r' | tail -1)")
  settings="$WINHOME/AppData/Local/Packages/Microsoft.WindowsTerminal_8wekyb3d8bbwe/LocalState/settings.json"
  settingsPreview="$WINHOME/AppData/Local/Packages/Microsoft.WindowsTerminalPreview_8wekyb3d8bbwe/LocalState/settings.json"

  if reg.exe query 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize' /v AppsUseLightTheme | grep -q 0x1; then
    useLightTheme=0
    fromTheme=OneLight
    toTheme=OneDark
  else
    useLightTheme=1
    fromTheme=OneDark
    toTheme=OneLight
  fi
  if [ -f "$settings" ]; then
    sed "s/\"colorScheme\": \"$fromTheme\"/\"colorScheme\": \"$toTheme\"/g" "$settings" >/tmp/terminal$$.json
    cp /tmp/terminal$$.json "$settings"
  fi
  if [ -f "$settingsPreview" ]; then
    sed "s/\"colorScheme\": \"$fromTheme\"/\"colorScheme\": \"$toTheme\"/g" "$settingsPreview" >/tmp/terminal$$.json
    cp /tmp/terminal$$.json "$settingsPreview"
  fi
  rm /tmp/terminal$$.json
  reg.exe add 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize' /v SystemUsesLightTheme /t REG_DWORD /f /d $useLightTheme > /dev/null
  reg.exe add 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize' /v AppsUseLightTheme /t REG_DWORD /f /d $useLightTheme > /dev/null
fi