using System.Numerics;
using System.Text;
using Content.Client._CP14.UserInterface.Systems.NodeTree;
using Content.Client.Administration.Managers;
using Content.Shared._CP14.Demiplane;
using Robust.Client.AutoGenerated;
using Robust.Client.Player;
using Robust.Client.UserInterface.CustomControls;
using Robust.Client.UserInterface.XAML;
using Robust.Client.Utility;
using Robust.Shared.Prototypes;
using Robust.Shared.Utility;

namespace Content.Client._CP14.Demiplane;

[GenerateTypedNameReferences]
public sealed partial class CP14DemiplaneMapWindow : DefaultWindow
{
    [Dependency] private readonly IPrototypeManager _prototype = default!;
    [Dependency] private readonly ILogManager _log = default!;
    [Dependency] private readonly IClientAdminManager _admin = default!;

    private CP14DemiplaneMapUiState? _cachedState;

    private ISawmill Sawmill { get; init; }

    public CP14DemiplaneMapWindow()
    {
        RobustXamlLoader.Load(this);
        IoCManager.InjectDependencies(this);

        Sawmill = _log.GetSawmill("cp14_demiplane_map_window");

        GraphControl.OnOffsetChanged += offset =>
        {
            ParallaxBackground.Offset = -offset * 0.25f + new Vector2(1000, 1000); //hardcoding is bad
        };
        GraphControl.OnNodeSelected += SelectNode;
    }

    public void UpdateState(CP14DemiplaneMapUiState state)
    {
        _cachedState = state;

        HashSet<CP14NodeTreeElement> nodeTreeElements = new();
        foreach (var node in state.Nodes)
        {
            if (node.Value.Start)
            {
                var startElement = new CP14NodeTreeElement(
                    nodeKey: node.Key.ToString(),
                    gained: true,
                    active: false,
                    node.Value.UiPosition * 100,
                    icon: new SpriteSpecifier.Rsi(new ResPath("_CP14/Interface/NodeTree/demiplane_map.rsi"), "center"));
                nodeTreeElements.Add(startElement);
            }
            else
            {
                _prototype.TryIndex(node.Value.LocationConfig, out var location);

                var treeElement = new CP14NodeTreeElement(
                    nodeKey: node.Key.ToString(),
                    gained: node.Value.Opened,
                    active: node.Value.Opened,
                    node.Value.UiPosition * 100,
                    icon: location?.Icon);
                nodeTreeElements.Add(treeElement);
            }
        }

        var edges = new HashSet<(string, string)>();
        foreach (var edge in state.Edges)
        {
            edges.Add((edge.Item1.ToString(), edge.Item2.ToString()));
        }
        GraphControl.UpdateState(
            new CP14NodeTreeUiState(
                nodeTreeElements,
                edges: edges,
                frameIcon: new SpriteSpecifier.Rsi(new ResPath("/Textures/_CP14/Interface/NodeTree/demiplane_map.rsi"),
                    "frame"),
                hoveredIcon: new SpriteSpecifier.Rsi(
                    new ResPath("/Textures/_CP14/Interface/NodeTree/demiplane_map.rsi"),
                    "hovered"),
                selectedIcon: new SpriteSpecifier.Rsi(
                    new ResPath("/Textures/_CP14/Interface/NodeTree/demiplane_map.rsi"),
                    "selected"),
                learnedIcon: new SpriteSpecifier.Rsi(
                    new ResPath("/Textures/_CP14/Interface/NodeTree/demiplane_map.rsi"),
                    "learned"),
                activeLineColor: new Color(172, 102, 190),
                lineColor: new Color(83, 40, 121)
            )
        );
    }

    private void SelectNode(CP14NodeTreeElement? node)
    {
        if (node == null)
        {
            DeselectNode();
            return;
        }

        if (_cachedState == null)
        {
            Sawmill.Error("Tried to select node without a cached state.");
            return;
        }

        if (node.NodeKey.Trim('(', ')').Split(',') is { Length: 2 } parts
        && int.TryParse(parts[0], out var x)
        && int.TryParse(parts[1], out var y)
        && _cachedState.Nodes.TryGetValue(new Vector2i(x, y), out var mapNode))
        {
            SelectNode(mapNode);
        }
        else
        {
            Sawmill.Error($"Tried to select node {node.NodeKey} that doesn't exist in the map.");
            DeselectNode();
        }
    }

    private void SelectNode(CP14DemiplaneMapNode? node)
    {
        var isAdmin = _admin.IsAdmin();

        if (node == null)
        {
            DeselectNode();
            return;
        }

        if (_cachedState == null)
        {
            Sawmill.Error("Tried to select node without a cached state.");
            return;
        }

        if (node.LocationConfig != null && _prototype.TryIndex(node.LocationConfig, out var location))
        {
            if (location.Name is not null)
                Name.Text = Loc.GetString(location.Name);

            //Generate description
            HashSet<LocId> modifierNames = new();
            foreach (var modifier in node.Modifiers)
            {
                if (!_prototype.TryIndex(modifier, out var indexedModifier))
                    continue;

                if (indexedModifier.Name is null)
                    continue;

                modifierNames.Add(indexedModifier.Name.Value);
            }

            var sb = new StringBuilder();
            foreach (var name in modifierNames)
            {
                sb.Append("- " + Loc.GetString(name) + "\n");
            }

            Description.Text = sb.ToString();
            LocationView.Texture = location.Icon?.Frame0();
        }
        else
        {
            Name.Text = string.Empty;
            Description.Text = string.Empty;
            LocationView.Texture = null;
        }

        //Admin part
        AdminPanel.Visible = isAdmin;

        var adminSb = new StringBuilder();

        adminSb.Append("Modifiers: \n");
        foreach (var modifier in node.Modifiers)
        {
            adminSb.Append("- " + Loc.GetString(modifier.Id) + "\n");
        }
        AdminDescription.Text = adminSb.ToString();
    }

    private void DeselectNode()
    {
        Name.Text = string.Empty;
        Description.Text = string.Empty;
        LocationView.Texture = null;
    }
}