using ImGuiNET;
using System.Numerics;
using SzCore;
using SzCore.DataObjects;

namespace SzGui.Windows;

public class SzDataObjectEditorWindow : SzGuiWindowBase
{
    private readonly SzDataset _dataset;
    private readonly SzDataObject _dataObject;
    private bool _isDirty = false;

    public SzDataObjectEditorWindow(SzDataset dataset, SzDataObject dataObject)
    {
        _dataset = dataset;
        _dataObject = dataObject;
        WindowName = $"Editing: {dataObject.Name} ({dataset.Name})";
    }

    protected override void RenderContent()
    {
        ImGui.TextDisabled($"ID: {_dataObject.Id}");
        ImGui.SeparatorText("Fields");
        
        foreach (var field in _dataObject.Fields.Values)
        {
            DrawFieldInput(field);
        }

        ImGui.Separator();

        if (ImGui.Button("Save Object", new Vector2(120, 30)))
        {
            Save();
        }

        if (_isDirty)
        {
            ImGui.SameLine();
            ImGui.TextColored(new Vector4(1, 0.5f, 0, 1), "Unsaved changes...");
        }
    }

    private void DrawFieldInput(SzField field)
    {
        string label = $"{field.Id}##{field.Id}";
        string val = field.Value ?? "";
        
        switch (field.FieldType)
        {
            case SzFieldType.Text:
                if (ImGui.InputText(label, ref val, 1024))
                {
                    field.Value = val;
                    _isDirty = true;
                }
                break;

            case SzFieldType.Bool:
                bool bVal = val.ToLower() == "true";
                if (ImGui.Checkbox(label, ref bVal))
                {
                    field.Value = bVal.ToString().ToLower();
                    _isDirty = true;
                }
                break;

            case SzFieldType.Number:
                // Handling numbers as strings in the DataObject, but using DragFloat for UX
                float.TryParse(val, out float fVal);
                if (ImGui.DragFloat(label, ref fVal))
                {
                    field.Value = fVal.ToString();
                    _isDirty = true;
                }
                break;
                
            default:
                ImGui.Text($"{field.Id}: {val} (Unsupported Type: {field.FieldType})");
                break;
        }
    }

    private async void Save()
    {
        var result = await SZ.DataHandler.SaveDatasetAsync(_dataset);
        if (result.IsSuccess)
        {
            _isDirty = false;
        }
    }
}