//
//  WindowPositionTests.swift
//  oAITests
//
// SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0
// Copyright (C) 2026 Rune Olsen

import Testing
import Foundation
import CoreGraphics
@testable import Confab

@Suite("Off-screen window detection")
struct WindowPositionTests {

    private let mainScreen = CGRect(x: 0, y: 0, width: 2560, height: 1664)

    @Test("Window inside the only connected screen is not off-screen")
    func onscreenWindow() {
        let frame = CGRect(x: 100, y: 100, width: 1024, height: 800)
        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen]) == false)
    }

    @Test("Window at coordinates from a now-disconnected external display is off-screen")
    func offscreenWindow() {
        // e.g. previously positioned on an external monitor to the right of the built-in display
        let frame = CGRect(x: 3000, y: 200, width: 1024, height: 800)
        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen]) == true)
    }

    @Test("Window merely partially overlapping a screen counts as on-screen")
    func partiallyOverlappingWindow() {
        let frame = CGRect(x: 2500, y: 100, width: 1024, height: 800)
        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen]) == false)
    }

    @Test("Off-screen relative to one display but onscreen on a second connected display")
    func multiMonitorOnscreen() {
        let secondScreen = CGRect(x: 2560, y: 0, width: 1920, height: 1080)
        let frame = CGRect(x: 3000, y: 200, width: 1024, height: 800)
        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen, secondScreen]) == false)
    }

    @Test("No connected screens means every window is off-screen")
    func noScreens() {
        let frame = CGRect(x: 100, y: 100, width: 1024, height: 800)
        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: []) == true)
    }
}