using System;
using System.Collections.Generic;
using Paca.Mobile.Core;
using Xunit;

namespace Paca.Tests.Core;

public class QuietHoursNotificationGateTests
{
    [Fact]
    public void Gate297_QuietHoursNotificationManager_AccuratelyDetectsOvernightRange()
    {
        var settings = new QuietHoursSettings
        {
            IsEnabled = true,
            StartHour = TimeSpan.FromHours(22), // 22:00 (10 PM)
            EndHour = TimeSpan.FromHours(7)     // 07:00 (7 AM)
        };

        var nightTime = new DateTime(2026, 9, 4, 23, 30, 0);
        var earlyMorning = new DateTime(2026, 9, 5, 4, 15, 0);
        var dayTime = new DateTime(2026, 9, 5, 14, 0, 0);

        Assert.True(QuietHoursNotificationManager.IsInQuietHours(nightTime, settings));
        Assert.True(QuietHoursNotificationManager.IsInQuietHours(earlyMorning, settings));
        Assert.False(QuietHoursNotificationManager.IsInQuietHours(dayTime, settings));
    }

    [Fact]
    public void Gate298_QuietHoursNotificationManager_MutesSoundAndVibration_DuringQuietHours()
    {
        var settings = new QuietHoursSettings
        {
            IsEnabled = true,
            StartHour = TimeSpan.FromHours(23),
            EndHour = TimeSpan.FromHours(6),
            MuteSoundAndVibration = true
        };

        var manager = new QuietHoursNotificationManager(settings);
        var evt = new DownloadNotificationItem("video-1", "Nature 4K", IsSuccess: true, FileSizeMb: 350.0);

        var action = manager.EvaluateNotification(evt, new DateTime(2026, 9, 5, 1, 0, 0));

        Assert.False(action.PlaySound);
        Assert.False(action.Vibrate);
        Assert.True(action.IsSuppressed);
    }

    [Fact]
    public void Gate299_QuietHoursNotificationManager_BundlesOvernightDownloads_IntoPendingList()
    {
        var settings = new QuietHoursSettings
        {
            IsEnabled = true,
            StartHour = TimeSpan.FromHours(22),
            EndHour = TimeSpan.FromHours(7),
            BundleSummary = true
        };

        var manager = new QuietHoursNotificationManager(settings);

        manager.EvaluateNotification(new DownloadNotificationItem("1", "Track 1", true, 50.0), new DateTime(2026, 9, 4, 23, 0, 0));
        manager.EvaluateNotification(new DownloadNotificationItem("2", "Track 2", true, 60.0), new DateTime(2026, 9, 5, 0, 30, 0));
        manager.EvaluateNotification(new DownloadNotificationItem("3", "Track 3", false, 0.0), new DateTime(2026, 9, 5, 2, 0, 0));

        Assert.Equal(3, manager.PendingCount);
    }

    [Fact]
    public void Gate300_QuietHoursNotificationManager_GeneratesMorningDigestBriefing_Correctly()
    {
        var settings = new QuietHoursSettings
        {
            IsEnabled = true,
            StartHour = TimeSpan.FromHours(22),
            EndHour = TimeSpan.FromHours(7),
            BundleSummary = true
        };

        var manager = new QuietHoursNotificationManager(settings);

        manager.EvaluateNotification(new DownloadNotificationItem("1", "Video 1", true, 200.0), new DateTime(2026, 9, 4, 23, 0, 0));
        manager.EvaluateNotification(new DownloadNotificationItem("2", "Video 2", true, 800.0), new DateTime(2026, 9, 5, 1, 0, 0));
        manager.EvaluateNotification(new DownloadNotificationItem("3", "Video 3", false, 0.0), new DateTime(2026, 9, 5, 3, 0, 0));

        // In morning at 07:15, generate digest
        var digest = manager.FlushMorningDigest(new DateTime(2026, 9, 5, 7, 15, 0));

        Assert.NotNull(digest);
        Assert.Equal(2, digest!.SuccessCount);
        Assert.Equal(1, digest.FailureCount);
        Assert.Equal(1000.0, digest.TotalSizeMb);
        Assert.Contains("밤사이 다운로드 2건 완료, 1건 실패", digest.SummaryMessage);
        Assert.Equal(0, manager.PendingCount); // Flushed
    }
}