import Cocoa
let app = AXUIElementCreateApplication(1668)
func info(_ x: Float, _ y: Float) -> String {
    var el: AXUIElement?
    guard AXUIElementCopyElementAtPosition(app, x, y, &el) == .success, let el = el else { return "none" }
    func s(_ a: String) -> String {
        var v: CFTypeRef?
        if AXUIElementCopyAttributeValue(el, a as CFString, &v) == .success, let st = v as? String { return String(st.prefix(40)).replacingOccurrences(of: "\n", with: "⏎") }
        return ""
    }
    var nkids = "?"
    if var kids: CFTypeRef? = nil, AXUIElementCopyAttributeValue(el, kAXChildrenAttribute as CFString, &kids) == .success, let arr = kids as? [AnyObject] { nkids = "\(arr.count)" }
    return "role=\(s(kAXRoleAttribute)) val='\(s(kAXValueAttribute))' desc='\(s(kAXDescriptionAttribute))' kids=\(nkids)"
}
print("P(849,707) [button center]: " + info(849, 707))
print("P(1450,1211) [send btn ctrl]: " + info(1450, 1211))
print("P(600,900) [chat text ctrl]: " + info(600, 900))
print("P(400,400) [sidebar ctrl]: " + info(400, 400))
// descend into element at (849,707) to find buttons
var el: AXUIElement?
if AXUIElementCopyElementAtPosition(app, 849, 707, &el) == .success, let root = el {
    var stack: [(AXUIElement, Int)] = [(root, 0)]
    var seen = 0
    while let (e, d) = stack.popLast(), seen < 80 {
        var v: CFTypeRef?
        var role = ""
        if AXUIElementCopyAttributeValue(e, kAXRoleAttribute as CFString, &v) == .success { role = (v as? String) ?? "?" }
        v = nil
        var val = ""
        if AXUIElementCopyAttributeValue(e, kAXValueAttribute as CFString, &v) == .success, let st = v as? String { val = String(st.prefix(30)).replacingOccurrences(of: "\n", with: "⏎") }
        v = nil
        var desc = ""
        if AXUIElementCopyAttributeValue(e, kAXDescriptionAttribute as CFString, &v) == .success, let st = v as? String { desc = String(st.prefix(30)).replacingOccurrences(of: "\n", with: "⏎") }
        print("d\(d) \(role) val='\(val)' desc='\(desc)'")
        seen += 1
        v = nil
        if AXUIElementCopyAttributeValue(e, kAXChildrenAttribute as CFString, &v) == .success, let arr = v as? [AnyObject] {
            for k in arr.reversed() { stack.append((k as! AXUIElement, d+1)) }
        }
    }
}