using Microsoft.EntityFrameworkCore;
using RadicadeServer.API.Storefront;
using RadicadeServer.DB;
using RadicadeServer.Extensions;
using RadicadeServer.RecNet.Avatar;
using RadicadeServer.RecNet.Enums.Store;
using RadicadeServer.RecNet.Progression;
using RadicadeServer.RecNet.Rooms;
using RadicadeServer.RecNet.Storefront;
using RadicadeServer.Utils;
using Xunit;

namespace RadicadeServer.Tests;

/// <summary>
/// What happens to a quest's reward box when the player walks away from it.
///
/// A quest's reward is not a choice and is not openable anywhere else - the server picked one unowned
/// item out of the run's rank pool when the reward was generated, and the box is only the delivery of
/// that item. Leaving the quest with the box still shut therefore has to deliver it, not strand it,
/// not re-roll it, and not pay tokens for it. These tests cover the delivery, and the three things
/// the delivery must not touch: a box for the quest the player is standing in, a box that is no
/// quest's, and the item's identity.
/// </summary>
public class QuestRewardDeliveryTests
{
    private const long PlayerId = 4411;

    private static RecDBContext NewDb() =>
        new(TestDbOptions.Create()
            .UseInMemoryDatabase(Guid.NewGuid().ToString())
            .Options);

    private static async Task<RoomData> SeedRoomAsync(RecDBContext db, string name)
    {
        var room = new RoomData { Name = name };
        db.Rooms.Add(room);
        await db.SaveChangesAsync();
        return room;
    }

    private static Gift QuestBox(GiftContext context = GiftContext.StuntRunner_TheMainEvent_C) => new()
    {
        GiftDropId = 8801,
        FriendlyName = "Runner Harness (Green)",
        Tooltip = "Stunt Runner: The Main Event",
        AvatarItemDesc = "d2d3264b-fbf6-40b5-9f10-c85ec737d112,1ba65dd5-9df9-4ff3-be96-f83a7abf67b3",
        CurrencyType = CurrencyType.Invalid,
        Currency = 0,
        Rarity = Rarity.Uncommon,
        Context = context
    };

    private static async Task SeedRewardAsync(RecDBContext db, Gift box, bool consumed = false)
    {
        var reward = new GameReward
        {
            RewardSelectionId = 5150,
            Message = "Stunt Runner: The Main Event",
            GiftContext = box.Context,
            RewardType = RewardType.PostQuestActivity,
            GiftDrop1 = box,
            GiftDrop2 = box,
            GiftDrop3 = box,
            CreatedAt = DateTime.UtcNow.AddMinutes(-2),
            Consumed = consumed,
            ConsumedGiftDropId = consumed ? box.GiftDropId : 0
        };
        var json = new ProgressionJson { PendingGameRewards = new List<GameReward> { reward } };
        db.Progression.Add(new ProgressionData { PlayerId = PlayerId, Progress = json.ToJson() });
        await db.SaveChangesAsync();
    }

    /// <summary>
    /// The player leaves the quest without opening the box: they get the item that was already inside
    /// it, the box is taken back, and the reward is recorded as collected against that same box.
    /// </summary>
    [Fact]
    public async Task LeavingTheQuestWithTheBoxUnopenedDeliversTheItemItAlreadyHeld()
    {
        await using var db = NewDb();
        var recCenter = await SeedRoomAsync(db, "RecCenter");
        var box = QuestBox();
        await SeedRewardAsync(db, box);
        await StorefrontShared.PersistGiftBoxAsync(db, PlayerId, box, notify: false);

        var delivered = await QuestRewardDelivery.DeliverOnArrivalAsync(db, PlayerId, recCenter.RoomId);

        Assert.Equal(1, delivered);
        Assert.Empty(await StorefrontShared.GetPendingGiftsAsync(db, PlayerId));

        var unlocks = await db.Unlocks.AsNoTracking().FirstOrDefaultAsync(x => x.AccountId == PlayerId);
        var item = Assert.Single(unlocks!.GetAvatarItems(), x => x.AvatarItemDesc == box.AvatarItemDesc);
        Assert.Equal("Runner Harness (Green)", item.FriendlyName);

        var progression = await db.Progression.AsNoTracking().FirstAsync(x => x.PlayerId == PlayerId);
        var saved = Assert.Single(progression.GetProgressionJson()!.PendingGameRewards);
        Assert.True(saved.Consumed);
        Assert.Equal(box.GiftDropId, saved.ConsumedGiftDropId);
    }

    /// <summary>
    /// Arriving back in the quest itself - a different instance of it, or a different rank of it -
    /// leaves the box alone, because it is still openable there.
    /// </summary>
    [Fact]
    public async Task ArrivingInTheQuest_KeepsTheBoxOpenable()
    {
        await using var db = NewDb();
        var stuntRunner = await SeedRoomAsync(db, "StuntRunner");
        var box = QuestBox();
        await SeedRewardAsync(db, box);
        await StorefrontShared.PersistGiftBoxAsync(db, PlayerId, box, notify: false);

        var delivered = await QuestRewardDelivery.DeliverOnArrivalAsync(db, PlayerId, stuntRunner.RoomId);

        Assert.Equal(0, delivered);
        Assert.Single(await StorefrontShared.GetPendingGiftsAsync(db, PlayerId));
        Assert.Null(await db.Unlocks.AsNoTracking().FirstOrDefaultAsync(x => x.AccountId == PlayerId));
    }

    /// <summary>
    /// A box that is no quest's - a storefront purchase, a level-up box, a daily-challenge box - is
    /// not the quest's special box and is left where it is: it can be opened anywhere.
    /// </summary>
    [Theory]
    [InlineData(GiftContext.LevelUp)]
    [InlineData(GiftContext.All_Daily_Challenges_Complete)]
    [InlineData(GiftContext.Purchased_Gift_A)]
    [InlineData(GiftContext.Dodgeball)]
    public async Task ABoxThatIsNoQuestsIsLeftAlone(GiftContext context)
    {
        await using var db = NewDb();
        var recCenter = await SeedRoomAsync(db, "RecCenter");
        var box = QuestBox(context);
        await StorefrontShared.PersistGiftBoxAsync(db, PlayerId, box, notify: false);

        var delivered = await QuestRewardDelivery.DeliverOnArrivalAsync(db, PlayerId, recCenter.RoomId);

        Assert.Equal(0, delivered);
        Assert.Single(await StorefrontShared.GetPendingGiftsAsync(db, PlayerId));
    }

    /// <summary>Which contexts count as a quest's own, and which do not.</summary>
    [Theory]
    [InlineData(GiftContext.StuntRunner_TheMainEvent_C, true)]
    [InlineData(GiftContext.StuntRunner_TheMainEvent_SS, true)]
    [InlineData(GiftContext.Quest_Goblin_S, true)]
    [InlineData(GiftContext.Quest_Pirate1_C, true)]
    [InlineData(GiftContext.Dodgeball, false)]
    [InlineData(GiftContext.Paintball_ClearCut, false)]
    [InlineData(GiftContext.Lasertag, false)]
    [InlineData(GiftContext.Reacquisition, false)]
    [InlineData(GiftContext.LevelUp, false)]
    [InlineData(GiftContext.GameRewards_Tokens, false)]
    public void OnlyARankedQuestsContextIsAQuestContext(GiftContext context, bool expected)
    {
        Assert.Equal(expected, RroRewardPools.IsQuestContext(context));
    }
}