using UnityEngine;
using UnityEditor;
using System.IO;
using System.Collections;
using System.Collections.Generic;

public class CleanUpWindow : EditorWindow
{
    bool groupEnabled = true;
    List<string> usedAssets = new List<string <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> );
    List<string> includedDependencies = new List<string <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> );
    private Vector2 scrollPos;
    private List<Object> unUsed;
    
    private Dictionary<string, List<Object>> unUsedArranged;
    private Dictionary<string, List<bool>> toggles;

    private bool needToBuild = false;

    // Add menu named "CleanUpWindow" to the Window menu
    [MenuItem("Window/CleanUpWindow")]
    static void Init()
    {
        // Get existing open window or if none, make a new one:  
        CleanUpWindow window = (CleanUpWindow)EditorWindow.GetWindow(typeof(CleanUpWindow), true, "Project Cleanup", true);
        window.Show();
    }

    void OnGUI()
    {

        if (needToBuild)
        {
            GUI.color = Color.red;
            GUILayout.Label("Are you sure you remembered to build project? Because you really need to...", EditorStyles.boldLabel);
        }

        GUILayout.BeginHorizontal();
        if (!needToBuild)
        {
            if (GUILayout.Button("Clear EditorLog"))
            {   
                clearEditorLog();
                needToBuild = true;
            }
        }

        GUI.color = Color.green;
        if (GUILayout.Button("Load EditorLog"))
            loadEditorLog();

        GUI.color = Color.white;
        GUILayout.EndHorizontal();

        GUI.changed = false;

        if (!needToBuild)
        {
            EditorGUILayout.BeginHorizontal();

            EditorGUILayout.BeginVertical(GUILayout.MinWidth(300));

            if (groupEnabled)
            {
                GUILayout.Label("DEPENDENCIES");
                for (int i = 0; i < includedDependencies.Count; i++)
                {
                    EditorGUILayout.LabelField("", string.Format("{0} {1}", i, includedDependencies[i]));
                }
            }

            if (GUILayout.Button("Selected Objects"))
                PrintSelected();

            GUILayout.Space(10);

            GUI.color = Color.red;

            if (GUILayout.Button("Delete Selected", GUILayout.MinHeight(32)))
                DeleteSelected();

            GUI.color = Color.white;

            EditorGUILayout.EndVertical();

            EditorGUILayout.BeginVertical();

            GUILayout.BeginHorizontal();
            GUILayout.Label("All: ", EditorStyles.boldLabel, GUILayout.MaxWidth(64));

            if (GUILayout.Button("on", EditorStyles.radioButton, GUILayout.MaxWidth(32)))
                ToggleAll(true);

            if (GUILayout.Button("off", EditorStyles.radioButton, GUILayout.MaxWidth(32)))
                ToggleAll(false);
            GUILayout.EndHorizontal();

            scrollPos = EditorGUILayout.BeginScrollView(scrollPos);

            if (groupEnabled)
            {
                if (unUsedArranged != null)
                {
                    foreach (KeyValuePair<string, List<Object>> objList in unUsedArranged)
                    {
                        if (objList.Value.Count >= 1)
                        {
                            GUILayout.Space(10);
                            GUILayout.BeginHorizontal();
                            if (GUILayout.Button("on", EditorStyles.radioButton, GUILayout.MaxWidth(32)))
                    ToggleKey(true, objList.Key.ToString());
                            if (GUILayout.Button("off", EditorStyles.radioButton, GUILayout.MaxWidth(32)))
                    ToggleKey(false, objList.Key);     

                            GUILayout.Label(objList.Key, EditorStyles.boldLabel, GUILayout.MaxWidth(200));

                            GUILayout.EndHorizontal();
                            for (int i = 0; i < objList.Value.Count; i++)
                            {
                    if (objList.Value[i] != null)
                    {
                    GUILayout.BeginHorizontal();
                    EditorGUILayout.ObjectField(objList.Value[i], typeof(Object), false, GUILayout.MinWidth(340));
                    toggles[objList.Key][i] = EditorGUILayout.Toggle(toggles[objList.Key][i]);
                    GUILayout.EndHorizontal();
                    }
                            }
                        }
                    }
                }
            }

            EditorGUILayout.EndScrollView();

            EditorGUILayout.EndVertical();

            EditorGUILayout.EndHorizontal();
        }

    }

    void PrintSelected()
    {
        foreach (KeyValuePair<string, List<Object>> kvp in unUsedArranged)
        {
            for (int i = 0; i < toggles[kvp.Key].Count; i++)
            {
                if (toggles[kvp.Key][i] == true)
                    Debug.Log("" + unUsedArranged[kvp.Key][i]);
            }
        }
    }

    void DeleteSelected()
    {
        if (!EditorUtility.DisplayDialog("Delete Unused Assets",
            "Are you sure you want to delete the selected assets?  There is no going back.", "Delete", "Aaagh, stop!"))
            return;

        foreach (KeyValuePair<string, List<Object>> kvp in unUsedArranged)
        {
            for (int i = 0; i < toggles[kvp.Key].Count; i++)
            {
                if (toggles[kvp.Key][i])
                {
                    AssetDatabase.DeleteAsset(AssetDatabase.GetAssetPath(unUsedArranged[kvp.Key][i]));
                }
            }
        }

        AssetDatabase.Refresh();

        loadEditorLog();
    }

    void ToggleAll(bool val)
    {
        foreach (KeyValuePair<string, List<bool>> kvp in toggles)
        {
            for (int i = 0; i < toggles[kvp.Key].Count; i++)
                toggles[kvp.Key][i] = val;
        }
    }

    void ToggleKey(bool val, string key)
    {
        for (int i = 0; i < toggles[key].Count; i++)
            toggles[key][i] = val;  
    }

    private void clearEditorLog()
    {
  
        string LocalAppData = string.Empty;
        string UnityEditorLogfile = string.Empty;

        if (Application.platform == RuntimePlatform.WindowsEditor)
        {
            LocalAppData = System.Environment.GetFolderPath(System.Environment.SpecialFolder.LocalApplicationData);
            UnityEditorLogfile = LocalAppData + "\\Unity\\Editor\\Editor.log";
        }
        else if (Application.platform == RuntimePlatform.OSXEditor)
        {
            LocalAppData = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
            UnityEditorLogfile = LocalAppData + "/Library/Logs/Unity/Editor.log";
        }

        try
        {
            // Have to use FileStream to get around sharing violations!
            //System.IO.File.WriteAllText(UnityEditorLogfile, string.Empty);
            FileStream FS = new FileStream(UnityEditorLogfile, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
            //StreamReader SR = new StreamReader(FS);
            StreamWriter SW = new StreamWriter(FS);
   
            SW.Write(string.Empty);
            SW.Flush();
            SW.Close();
        }
        catch (System.Exception E)
        {
            Debug.LogError("Error: " + E);
        }
    }

    private void loadEditorLog()
    {
        UsedAssets.GetLists(ref usedAssets, ref includedDependencies);

        if (usedAssets.Count == 0)
        {
            needToBuild = true;
        }
        else
        {
            compareAssetList(UsedAssets.GetAllAssets());
            groupEnabled = true;
            needToBuild = false;
        }
    }

    private void compareAssetList(string[] assetList)
    {

        unUsed = new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> );

        unUsedArranged = new Dictionary<string, List<Object> <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> );
        unUsedArranged.Add("plugins", new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));
        unUsedArranged.Add("editor", new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));
        unUsedArranged.Add("unsorted", new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));
        unUsedArranged.Add("material", new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));
        unUsedArranged.Add("texture", new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));
        unUsedArranged.Add("model", new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));
        unUsedArranged.Add("prefab", new List<Object <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));

        toggles = new Dictionary<string, List<bool> <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> );
        foreach (KeyValuePair<string, List<Object>> kvp in unUsedArranged)
        {
            toggles.Add(kvp.Key, new List<bool <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=" <img rel="usm" src="/SML/angry.gif" border="0" align="absmiddle" alt=">(" /> " /> " /> ));
        }

        for (int i = 0; i < assetList.Length; i++)
        {
            if (!usedAssets.Contains(assetList[i]))
            {
                Object objToFind = AssetDatabase.LoadAssetAtPath(assetList[i], typeof(Object));
                unUsed.Add(objToFind);
                string key = getArrangedPos(objToFind);
                unUsedArranged[key].Add(objToFind);
                toggles[key].Add(false);   
            }
        }
    }

    private string getArrangedPos(Object value)
    {
        string path = AssetDatabase.GetAssetPath(value).ToLower();

        if (path.Contains("/plugins/"))
        {
            return "plugins";
        }
        else if (path.Contains("/editor/"))
        {
            return "editor";
        }
        else if (path.Contains(".prefab"))
        {
            return "prefab";
        }
        else if (path.Contains(".mat"))
        {
            return "material";
        }
        else if (path.Contains(".png") || path.Contains(".jpg") || path.Contains(".jpeg") || path.Contains(".psd") || path.Contains(".gif"))
        {
            return "texture";
        }
        else if (path.Contains(".fbx") || path.Contains(".ma") || path.Contains(".mb") || path.Contains(".dae"))
        {
            return "model";
        }
        else
        {
            return "unsorted";
        }
    }
}

using UnityEngine;
using UnityEditor;
using System;
using System.IO;
using System.Collections;
using System.Collections.Generic;

public class UsedAssets
{
    public static string[] GetAllAssets()
    {
        string[] tmpAssets1 = Directory.GetFiles(Application.dataPath, "*.*", SearchOption.AllDirectories);
        string[] tmpAssets2 = Array.FindAll(tmpAssets1, name => !name.EndsWith(".meta"));
        string[] allAssets;

        allAssets = Array.FindAll(tmpAssets2, name => !name.EndsWith(".unity"));

        for (int i = 0; i < allAssets.Length; i++)
        {
            allAssets[i] = allAssets[i].Substring(allAssets[i].IndexOf("/Assets") + 1);
            allAssets[i] = allAssets[i].Replace(@"\", "/");
        }

        return allAssets;
    }

    public static void GetLists(ref List<string> assetResult, ref List<string> dependencyResult)
    {
        assetResult.Clear();
        dependencyResult.Clear();

        string LocalAppData = string.Empty;
        string UnityEditorLogfile = string.Empty;

        if (Application.platform == RuntimePlatform.WindowsEditor)
        {
            LocalAppData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            UnityEditorLogfile = LocalAppData + "\\Unity\\Editor\\Editor.log";
        }
        else if (Application.platform == RuntimePlatform.OSXEditor)
        {
            LocalAppData = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
            UnityEditorLogfile = LocalAppData + "/Library/Logs/Unity/Editor.log";
        }

        try
        {
            // Have to use FileStream to get around sharing violations!
            FileStream FS = new FileStream(UnityEditorLogfile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
            StreamReader SR = new StreamReader(FS);

            string line;
            while (!SR.EndOfStream && !(line = SR.ReadLine()).Contains("Mono dependencies included in the build"))
            {
                
            }
            while (!SR.EndOfStream && (line = SR.ReadLine()) != "")
            {
                if (line.StartsWith("Dependency assembly - "))
                {
                    line = line.Substring("Dependency assembly - ".Length);
                }
                dependencyResult.Add(line);
            }
            while (!SR.EndOfStream && !(line = SR.ReadLine()).Contains("Used Assets"))
            {
                
            }
            while (!SR.EndOfStream && (line = SR.ReadLine()) != "")
            {

                line = line.Substring(line.IndexOf("% ") + 2);
                assetResult.Add(line);
            }
        }
        catch (Exception E)
        {
            Debug.LogError("Error: " + E);
        }
    }
}