using System;
using System.IO;
using Microsoft.Data.Sqlite;
using Xunit;
using ytLive.Models;
using ytLive.Services;
using ytLive.ViewModels;

namespace ytLive.Tests;

/// <summary>
/// Top bar redesign — the bar is ONE surface rendered by the FIRST decision
/// (Record or Stream). Each world is the whole bar: Test is a child of Stream,
/// but the account zone (Sign In / avatar) is WORLD-INDEPENDENT (creator
/// 2026-09-23) so the right column never pops in and out and the bar height
/// stays pinned. The switch is a two-position gate, so "going back" is one tap
/// on the other segment. While running, the switch retires and a single reality
/// line (dot + word + elapsed) + End replace it.
/// </summary>
[Collection("RealApp")]
public sealed class TopBarModeTests
{
    private readonly RealAppHost _app;

    public TopBarModeTests(RealAppHost app) => _app = app;

    [Fact]
    public void TopBar_Renders_Only_The_Armed_World()
    {
        _app.Run(Run);
    }

    private void Run()
    {
        var tempDb = Path.Combine(Path.GetTempPath(), $"ytLlive-topbar-{Guid.NewGuid():N}.db");
        MainViewModel.LayoutPathOverride = tempDb;
        try
        {
            using (var schema = new LayoutStore(tempDb)) { }
            SqliteConnection.ClearAllPools();

            var vm = new MainViewModel();

            // The dev machine may hold a real saved OAuth session (loads synchronously
            // during the ctor), so the sign-in state is forced deterministically.
            vm.IsConnected = false;

            // Default (nothing armed) = the Record world: Go says "Start Recording",
            // no Test — but the account zone is app-level and stays (signed out →
            // Sign In visible even here; no avatar).
            Assert.True(vm.ShowIdleWorld);
            Assert.True(vm.ShowRecordAction);
            Assert.False(vm.ShowStreamActions);
            Assert.True(vm.ShowSignInButton);
            Assert.False(vm.ShowAvatarButton);
            Assert.False(vm.ShowTestButton);
            Assert.Equal("Start Recording", vm.PrimaryStartButtonLabel);

            // Arming ON-AIR switches the whole bar to the Stream world.
            vm.OnAirPillOn = true;
            Assert.False(vm.ShowRecordAction);
            Assert.True(vm.ShowStreamActions);

            // Signed out: the account zone shows Sign In; no avatar; Test is gated
            // behind the sign-in (Test rides on Stream AND a connected account).
            Assert.True(vm.ShowSignInButton);
            Assert.False(vm.ShowAvatarButton);
            Assert.False(vm.ShowTestButton);
            Assert.Equal("Go Live", vm.PrimaryStartButtonLabel);

            // Connected: avatar + Test join the Stream world; Sign In retires.
            vm.IsConnected = true;
            Assert.False(vm.ShowSignInButton);
            Assert.True(vm.ShowAvatarButton);
            Assert.True(vm.ShowTestButton);

            // Going back is one tap: flipping REC returns the bar to the Record world —
            // the avatar STAYS (world-independent account zone), only Test retires.
            vm.RecordPillOn = true;
            Assert.False(vm.ShowStreamActions);
            Assert.True(vm.ShowRecordAction);
            Assert.True(vm.ShowAvatarButton);
            Assert.False(vm.ShowTestButton);
            Assert.Equal("Start Recording", vm.PrimaryStartButtonLabel);

            // Running retires the switch and worlds; the reality line pins the mode.
            vm.RecordPillOn = false;
            vm.OnAirPillOn = true;
            vm.IsRecording = true;
            Assert.False(vm.ShowIdleWorld);
            Assert.True(vm.RunningVisible);
            Assert.Equal("REC", vm.RunningText);
            Assert.Equal("#22c55e", vm.RunningDotBrush);
            vm.IsRecording = false;
            vm.StreamStatus = StreamStatus.Streaming;
            Assert.Equal("LIVE", vm.RunningText);
            Assert.Equal("#e94560", vm.RunningDotBrush);
            vm.IsTestStream = true;
            Assert.Equal("TEST", vm.RunningText);
            Assert.Equal("#9c6f1c", vm.RunningDotBrush);
        }
        finally
        {
            MainViewModel.LayoutPathOverride = null;
            SqliteConnection.ClearAllPools();
            try { File.Delete(tempDb); } catch { /* best-effort cleanup */ }
        }
    }
}