using System.IO;
using UnityEditor;
using UnityEngine;
using Debug = UnityEngine.Debug;

namespace MeatKit
{
    public static partial class MeatKit
    {
        private static readonly string ManagedDirectory = Path.Combine(Application.dataPath, "Managed/");

        private static bool ShowErrorIfH3VRNotImported()
        {
#if (H3VR_IMPORTED == false)
            EditorUtility.DisplayDialog("Cannot continue.", "You don't have the H3 scripts imported. Please do that before trying to export anything.", "Ok");
            return true;
#endif
            return false;
        }


        [MenuItem("MeatKit/Scripts/Import Game", priority = 0)]
        public static void ImportAssemblies()
        {
            // If the path has never been set, or no longer exists, prompt the user to find it again
            var gameManagedLocation = MeatKitCache.GameManagedLocation;
            if (string.IsNullOrEmpty(gameManagedLocation) || !Directory.Exists(gameManagedLocation))
            {
                // Cache wasn't set or directory doesn't exist. Lets see if we can find it automatically via Steam
                gameManagedLocation = SteamAppLocator.LocateGame();
                if (string.IsNullOrEmpty(gameManagedLocation))
                {
                    // Still nope. Ask the user for it directly.
                    gameManagedLocation =
                        EditorUtility.OpenFolderPanel("Select H3VR Managed directory", string.Empty, "Managed");
                }
                else gameManagedLocation = Path.Combine(gameManagedLocation, "h3vr_Data/Managed");
            }

            // If it's _still_ empty, the user must have cancelled the input prompt, so cancel the import.
            if (string.IsNullOrEmpty(gameManagedLocation)) return;

            // Also, check if the path is even valid
            if (!File.Exists(Path.Combine(gameManagedLocation, "Assembly-CSharp.dll")))
            {
                EditorUtility.DisplayDialog("Error",
                    "Looks like the path you selected is invalid. Make sure you are selecting the h3vr_Data/Managed folder in the game directory.",
                    "Ok");
                return;
            }
            
            // Import the assemblies and update the cache so we can find it in the future
            ImportAssemblies(gameManagedLocation, ManagedDirectory);
            MeatKitCache.GameManagedLocation = gameManagedLocation;

            // Let the user know we've completed the action
            EditorUtility.DisplayDialog("Success", "Game scripts imported", "Ok");
        }

        [MenuItem("MeatKit/Scripts/Import Single", priority = 0)]
        public static void ImportSingleAssembly()
        {
            var assemblyLocation =
                EditorUtility.OpenFilePanel("Select assembly", null, "dll");
            if (string.IsNullOrEmpty(assemblyLocation)) return;
            MeatKitCache.LastImportedAssembly = assemblyLocation;
            ImportSingleAssembly(assemblyLocation, ManagedDirectory);
            Debug.Log("Finished importing " + assemblyLocation);
        }

        [MenuItem("MeatKit/Scripts/Re-Import Last", priority = 0)]
        public static void ReimportLast()
        {
            if (string.IsNullOrEmpty(MeatKitCache.LastImportedAssembly))
            {
                Debug.Log("Nothing to re-import.");
                return;
            }

            ImportSingleAssembly(MeatKitCache.LastImportedAssembly, ManagedDirectory);
            Debug.Log("Re-imported " + MeatKitCache.LastImportedAssembly);
        }

        [MenuItem("MeatKit/Scripts/Export", priority = 0)]
        public static void ExportEditorScripts()
        {
            // Make sure the scripts are imported and there are no errors before exporting
            if (ShowErrorIfH3VRNotImported()) return;
            if (!BuildWindow.SelectedProfile) return;

            if (!BuildWindow.SelectedProfile.EnsureValidForEditor()) return;
            ExportEditorAssembly(BuildWindow.SelectedProfile.ExportPath);
        }

        public static void ClearCache()
        {
            AssetDatabase.SaveAssets();

            if (Directory.Exists(ManagedDirectory))
                Directory.Delete(ManagedDirectory, true);
            PlayerSettings.SetScriptingDefineSymbolsForGroup(BuildTargetGroup.Standalone, "");
            AssetDatabase.Refresh();
        }
    }
}