Open TextEdit, create new document and minimize on next press

I had to change the workflow here to account for a couple of different scenarios.
I'm assuming that you'll be running this from a stream deck (you can use a keyboard trigger but you'll need to set up two triggers for this command).

• On the first button press if Textedit isn't open it will be launched. If, at launch, there are no documents open it will create a new document.
• On the second button press, textedit windows will be minimized and the app will be hidden (which should focus the previous app).
• On a third press, since text edit is already running, all windows will be un-minimized and text edit will be focused.
• If you want to want a new document to be created hold the option key while pressing the stream deck button. This is to prevent a new document being created every time you switch to textedit via the stream deck button.
  
  

If you want to trigger this script via a keyboard trigger you need to creat two triggers for the script - one with the option key and one without:
(Be careful and make sure that no other app is using any of these keyboard combinations since they would interfere with the triggers you set up for this script)

const modifiers = event.keyboardState.asString
const textEdit = sf.ui.app("com.apple.TextEdit");
const textEditWindows = textEdit.windows;

// Get Frontmost App
const frontmostApp = sf.ui.frontmostApp;

// If TextEdit is focused, minimize windows and hide
if (frontmostApp.title.value == "TextEdit") {
    textEditWindows.forEach(win => win.windowMinimize())

    textEdit.menuClick({
        menuPath: ["TextEdit", "Hide TextEdit"],
    });
    throw 0
};

// If TextEdit isn't running open it
if (!textEdit.isRunning) {
    // Open TextEdit
    sf.system.execAppleScript({
        script: ` 
        tell application "TextEdit"
        activate
        end tell`
    })
}

// otherwise, focus TextEdit and un-minimize all winodws
textEdit.appActivate()

textEditWindows.forEach(win => win.windowRestore());

// If there are no text edit windows open or the cmd key is held create new document
if (textEditWindows.length == 0 || modifiers.includes("alt")) {
    // Create New TextEdit Document
    textEdit.menuClick({
        menuPath: ["File", "New"],
    });
    textEdit.appActivate()
}

Personally I think minimizing takes too long (unless you have minimize animations turned off in system prefs).
Hiding seems more efficient.
If you'd rather just hide TextEdit then delete or comment lines 10 and 32