using SlaySharp.Core.Catalogs;
using SlaySharp.Core.Models;
using SlaySharp.Core.Run;
using Xunit;

namespace SlaySharp.Tests;

public class GameRunTests
{
    [Fact]
    public void MapGraph_GeneratesSevenFloors_WithBossAtTop()
    {
        var map = MapGraph.GenerateAct1Map(seed: 42);

        Assert.Equal(7, map.Floors.Count);
        Assert.NotEmpty(map.Floors[0]);
        Assert.Single(map.Floors[6]);
        Assert.Equal(MapNodeType.Boss, map.Floors[6][0].Type);
    }

    [Fact]
    public void GameRun_StartNewRun_InitializesCorrectly()
    {
        var run = new GameRun();
        run.StartNewRun(seed: 42);

        Assert.NotNull(run.Player);
        Assert.Equal(70, run.Player.MaxHp);
        Assert.Equal(70, run.Player.CurrentHp);
        Assert.Equal(60, run.DevCredits);
        Assert.Equal(RunScreen.Map, run.CurrentScreen);
        Assert.NotEmpty(run.Player.MasterDeck);
        Assert.Equal(3, run.Player.Relics.Count);
    }

    [Fact]
    public void GameRun_SelectFloor0Node_TransitionsToCorrectScreen()
    {
        var run = new GameRun();
        run.StartNewRun(seed: 42);

        var firstFloorNode = run.Map.Floors[0][0];
        Assert.True(run.CanVisitNode(firstFloorNode));

        run.SelectNode(firstFloorNode);

        Assert.Contains(firstFloorNode.Id, run.VisitedNodeIds);
        Assert.Equal(RunScreen.Combat, run.CurrentScreen);
        Assert.NotNull(run.ActiveCombat);
    }

    [Fact]
    public void StoryEvent_StackOverflowOption_ModifiesDeckAndHp()
    {
        var run = new GameRun();
        run.StartNewRun(seed: 42);
        var initialDeckCount = run.Player.MasterDeck.Count;
        var initialMaxHp = run.Player.MaxHp;

        var stackOverflowEvent = StoryEvent.GetAct1Events().First(e => e.Id == "stackoverflow");
        var copyPasteOption = stackOverflowEvent.Options[0];

        copyPasteOption.ApplyEffect(run);

        Assert.Equal(initialDeckCount + 1, run.Player.MasterDeck.Count);
        Assert.True(run.Player.MasterDeck.Last().Upgraded);
        Assert.Equal(initialMaxHp - 8, run.Player.MaxHp);
    }

    [Fact]
    public void GameRun_CompleteCombat_AwardsDevCredits()
    {
        var run = new GameRun();
        run.StartNewRun(seed: 42);
        var startCredits = run.DevCredits;

        var firstFloorNode = run.Map.Floors[0][0];
        run.SelectNode(firstFloorNode);

        run.CompleteCombatAndClaimRewards(bonusCredits: 35);

        Assert.Equal(startCredits + 35, run.DevCredits);
        Assert.Equal(RunScreen.Map, run.CurrentScreen);
        Assert.Null(run.ActiveCombat);
    }
}