using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using SM64Lib.ASM;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Z.Collections.Extensions;

namespace SM64Lib.Objects.ObjectBanks;

public class CustomObjectCollection
{
    public List<CustomObject> CustomObjects { get; } = [];

    public void TakeoverProperties(RomManager rommgr)
    {
        foreach (var cobj in CustomObjects)
            cobj.TakeoverProperties(rommgr);
    }

    public void Export(string filePath, CustomObjectExportOptions options)
    {
        Export(filePath, CustomObjects.ToArray(), options);
    }

    public static void Export(string filePath, CustomObject customObject, CustomObjectExportOptions options)
    {
        Export(filePath, new CustomObject[] { customObject }, options);
    }

    public static void Export(string filePath, CustomObject[] customObjects, CustomObjectExportOptions options)
    {
        var export = new CustomObjectExport()
        {
            ExportDate = DateTime.UtcNow,
            Name = options.ExportName
        };
        export.Data.CustomObjects.AddRange(customObjects);
        export.Data.EmbeddedFiles = options.EmbeddedFiles;
        export.Data.Script = options.Script;

        foreach (var cobj in customObjects)
        {
            if (cobj.BehaviorProps.Behavior is not null && !cobj.BehaviorProps.Behavior.IsVanilla)
            {
                var behav = cobj.BehaviorProps.Behavior.FindBehavior();
                if (behav is not null)
                {
                    export.Data.Behaviors.AddIfNotContainsKey(cobj.BehaviorProps.Behavior, behav);
                    foreach (var link in cobj.BehaviorProps.Behavior.CustomAsmLinks)
                    {
                        var asm = link.CustomAsmAreaConfig.FindCustomAsmArea();
                        if (asm is not null)
                            export.Data.CustomAsmAreas.AddIfNotContainsKey(link.CustomAsmAreaConfig, asm);
                    }
                }
            }

            if (cobj.ModelProps is not null)
            {
                var mdl = cobj.ModelProps.Model?.FindModel();
                if (mdl is not null)
                    export.Data.CustomModels.AddIfNotContainsKey(cobj.ModelProps.Model, mdl);
            }
        }

        export.Compress();
        export.ID.Generate();

        File.WriteAllText(filePath, JObject.FromObject(export).ToString());
    }

    public static CustomObjectImport LoadImport(string filePath)
    {
        var ser = JsonSerializer.CreateDefault();
        ser.PreserveReferencesHandling = PreserveReferencesHandling.All;
        return JObject.Parse(File.ReadAllText(filePath)).ToObject<CustomObjectImport>(ser);
    }

    public static void DecompressImports(CustomObjectImport[] imports)
    {
        foreach (var import in imports)
            DecompressImport(import);
    }

    public static void DecompressImport(CustomObjectImport import)
    {
        import.Decompress();
    }

    public void Import(CustomObjectImport import)
    {
        // Decompress import
        DecompressImport(import);

        foreach (var cobj in import.Data.CustomObjects)
        {
            if (!import.IgnoreCustomObjects.Contains(cobj))
            {
                // Add Custom Behavior
                if (cobj.BehaviorProps.Behavior is not null)
                {
                    if (cobj.BehaviorProps.Behavior.IsVanilla)
                    {
                        var behav = import.DestBehaviorBank.GetBehaviorByBankAddress(cobj.BehaviorProps.BehaviorAddress);
                        cobj.BehaviorProps.Behavior = behav.Config;
                    }
                    else if (import.Data.Behaviors.ContainsKey(cobj.BehaviorProps.Behavior))
                    {
                        var behav = import.Data.Behaviors[cobj.BehaviorProps.Behavior];
                        import.DestBehaviorBank.Behaviors.Add(behav);

                        if (behav.Config.CustomAsmLinks.Any())
                        {
                            foreach (var link in behav.Config.CustomAsmLinks)
                            {
                                CustomAsmArea asmArea = null;

                                if (import.Data.CustomAsmAreas.ContainsKey(link.CustomAsmAreaConfig))
                                    asmArea = import.Data.CustomAsmAreas[link.CustomAsmAreaConfig];
                                else if (link.CustomAsm != null) // Temporary fix for old files - Remove property in v1.?
                                    asmArea = link.CustomAsm;

                                if (asmArea != null)
                                {
                                    import.DestCustomAsmBank.Areas.Add(asmArea);
                                    import.DestCustomAsmBank.UpdateAreaConfigCollection();
                                }
                            }
                        }

                        behav.ParseScript();
                        cobj.BehaviorProps.BehaviorAddress = -1;
                    }
                }

                // Add Custom Model
                if (cobj.ModelProps.Model is not null && import.Data.CustomModels.ContainsKey(cobj.ModelProps.Model) && import.DestModelBanks.ContainsKey(cobj.ModelProps.Model))
                {
                    var destModelBank = import.DestModelBanks[cobj.ModelProps.Model];
                    destModelBank.Models.Add(import.Data.CustomModels[cobj.ModelProps.Model]);
                    destModelBank.NeedToSave = true;
                }

                // Add Custom Object
                CustomObjects.Add(cobj);
            }
        }
    }
}