setup

var app = Application.currentApplication();
app.includeStandardAdditions = true;

function prompt(text, defaultAnswer) {
	var options = { defaultAnswer: defaultAnswer || '' }
	try {
		return app.displayDialog(text, options).textReturned
	} catch (e) {
		return ""
	}
}

var project = ""
while (project == "") {
	project = prompt("What project do you want to use?", "");
}
console.log("Using project "+project)

var context = ""
while (context == "") {
	context = prompt("What context do you want to use?", "");
}
console.log("Using context "+context)

var text = "{\"project\":\""+project+"\", \"context\":\""+context+"\"}"

var openedFile = app.openForAccess(Path("./config.json"), { writePermission: true });

// Clear the file if content should be overwritten
app.setEof(openedFile, { to: 0 })

// Write the new content to the file
app.write(text, { to: openedFile, startingAt: app.getEof(openedFile) })

// Close the file
app.closeAccess(openedFile)