using UnityEngine;
using System.Collections;

#if UNITY_EDITOR
using UnityEditor;

[CustomEditor (typeof (externalCameraShakeSystem))]
[CanEditMultipleObjects]
public class externalCameraShakeSystemEditor : Editor
{
    SerializedProperty useShakeListTriggeredByActions;
    SerializedProperty nameList;
    SerializedProperty nameIndex;
    SerializedProperty externalShakeName;
    SerializedProperty setPlayerManually;
    SerializedProperty currentPlayer;
    SerializedProperty shakeTriggeredByActionList;
    SerializedProperty shakeUsingDistance;
    SerializedProperty minDistanceToShake;
    SerializedProperty layer;
    SerializedProperty useShakeEvent;
    SerializedProperty eventAtStart;
    SerializedProperty eventAtEnd;
    SerializedProperty showGizmo;
    SerializedProperty gizmoLabelColor;

    SerializedProperty mainManagerName;

    SerializedProperty externalCameraShakeEnabled;


    externalCameraShakeSystem shakeManager;

    GUIStyle style = new GUIStyle ();

    bool expanded;

    GUIStyle buttonStyle = new GUIStyle ();

    void OnEnable ()
    {
        useShakeListTriggeredByActions = serializedObject.FindProperty ("useShakeListTriggeredByActions");
        nameList = serializedObject.FindProperty ("nameList");
        nameIndex = serializedObject.FindProperty ("nameIndex");
        externalShakeName = serializedObject.FindProperty ("externalShakeName");
        setPlayerManually = serializedObject.FindProperty ("setPlayerManually");
        currentPlayer = serializedObject.FindProperty ("currentPlayer");
        shakeTriggeredByActionList = serializedObject.FindProperty ("shakeTriggeredByActionList");
        shakeUsingDistance = serializedObject.FindProperty ("shakeUsingDistance");
        minDistanceToShake = serializedObject.FindProperty ("minDistanceToShake");
        layer = serializedObject.FindProperty ("layer");
        useShakeEvent = serializedObject.FindProperty ("useShakeEvent");
        eventAtStart = serializedObject.FindProperty ("eventAtStart");
        eventAtEnd = serializedObject.FindProperty ("eventAtEnd");
        showGizmo = serializedObject.FindProperty ("showGizmo");
        gizmoLabelColor = serializedObject.FindProperty ("gizmoLabelColor");

        mainManagerName = serializedObject.FindProperty ("mainManagerName");

        externalCameraShakeEnabled = serializedObject.FindProperty ("externalCameraShakeEnabled");

        shakeManager = (externalCameraShakeSystem)target;
    }

    void OnSceneGUI ()
    {
        if (!Application.isPlaying) {
            if (shakeManager.showGizmo) {

                style.normal.textColor = shakeManager.gizmoLabelColor;
                style.alignment = TextAnchor.MiddleCenter;

                Handles.Label (shakeManager.transform.position + shakeManager.transform.up * shakeManager.minDistanceToShake,
                    "External Shake: " + shakeManager.externalShakeName, style);
            }
        }
    }

    public override void OnInspectorGUI ()
    {
        GUILayout.BeginVertical (GUILayout.Height (30));

        buttonStyle = new GUIStyle (GUI.skin.button);

        buttonStyle.fontStyle = FontStyle.Bold;
        buttonStyle.fontSize = 12;

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Main Settings", "window");
        EditorGUILayout.PropertyField (externalCameraShakeEnabled);

        EditorGUILayout.Space ();

        EditorGUILayout.PropertyField (mainManagerName);

        EditorGUILayout.Space ();

        if (!useShakeListTriggeredByActions.boolValue) {
            if (nameList.arraySize > 0) {
                nameIndex.intValue = EditorGUILayout.Popup ("External Shake Type", nameIndex.intValue, shakeManager.nameList);
                externalShakeName.stringValue = shakeManager.nameList [nameIndex.intValue];
            }
        }

        EditorGUILayout.PropertyField (setPlayerManually);
        if (setPlayerManually.boolValue || useShakeListTriggeredByActions.boolValue) {
            EditorGUILayout.PropertyField (currentPlayer);
        }

        EditorGUILayout.PropertyField (useShakeListTriggeredByActions);
        if (useShakeListTriggeredByActions.boolValue) {

            EditorGUILayout.Space ();

            GUILayout.BeginVertical ("Shake Triggered By Action List", "window");
            showShakeTriggeredByActionList (shakeTriggeredByActionList);
            GUILayout.EndVertical ();

            EditorGUILayout.Space ();

        } else {
            EditorGUILayout.PropertyField (shakeUsingDistance);
            EditorGUILayout.PropertyField (minDistanceToShake);
            EditorGUILayout.PropertyField (layer);
            EditorGUILayout.PropertyField (useShakeEvent);
            if (useShakeEvent.boolValue) {
                EditorGUILayout.PropertyField (eventAtStart);
                EditorGUILayout.PropertyField (eventAtEnd);
            }

            EditorGUILayout.Space ();
        }
        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Gizmo Settings", "window");
        EditorGUILayout.PropertyField (showGizmo);
        if (showGizmo.boolValue) {
            EditorGUILayout.PropertyField (gizmoLabelColor);
        }
        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

        EditorGUILayout.Space ();

        if (GUILayout.Button ("Update External Shake List")) {
            shakeManager.getExternalShakeList ();
        }

        if (!useShakeListTriggeredByActions.boolValue) {
            EditorGUILayout.Space ();

            GUILayout.BeginVertical ("Debug Options", "window");
            if (GUILayout.Button ("Test Shake")) {
                if (Application.isPlaying) {
                    shakeManager.setCameraShake ();
                }
            }

            GUILayout.EndVertical ();
        }

        EditorGUILayout.Space ();

        GUILayout.EndVertical ();
        if (GUI.changed) {
            serializedObject.ApplyModifiedProperties ();
        }
    }

    void showShakeTriggeredByActionList (SerializedProperty list)
    {
        EditorGUILayout.Space ();

        if (GUILayout.Button ("Show/Hide " + list.displayName, buttonStyle)) {
            list.isExpanded = !list.isExpanded;
        }

        EditorGUILayout.Space ();

        if (list.isExpanded) {

            EditorGUILayout.Space ();

            GUILayout.BeginHorizontal ();
            if (GUILayout.Button ("Add Action")) {
                list.arraySize++;
            }
            if (GUILayout.Button ("Clear")) {
                list.arraySize = 0;
            }
            GUILayout.EndHorizontal ();

            EditorGUILayout.Space ();

            for (int i = 0; i < list.arraySize; i++) {
                expanded = false;
                GUILayout.BeginHorizontal ();
                GUILayout.BeginHorizontal ("box");

                EditorGUILayout.Space ();

                if (i < list.arraySize && i >= 0) {
                    EditorGUILayout.BeginVertical ();
                    EditorGUILayout.PropertyField (list.GetArrayElementAtIndex (i), false);
                    if (list.GetArrayElementAtIndex (i).isExpanded) {
                        expanded = true;
                        showShakeTriggeredByActionListElement (list.GetArrayElementAtIndex (i), i);
                    }

                    EditorGUILayout.Space ();

                    GUILayout.EndVertical ();
                }
                GUILayout.EndHorizontal ();
                if (expanded) {
                    GUILayout.BeginVertical ();
                } else {
                    GUILayout.BeginHorizontal ();
                }
                if (GUILayout.Button ("x")) {
                    list.DeleteArrayElementAtIndex (i);
                }
                if (GUILayout.Button ("v")) {
                    if (i >= 0) {
                        list.MoveArrayElement (i, i + 1);
                    }
                }
                if (GUILayout.Button ("^")) {
                    if (i < list.arraySize) {
                        list.MoveArrayElement (i, i - 1);
                    }
                }
                if (expanded) {
                    GUILayout.EndVertical ();
                } else {
                    GUILayout.EndHorizontal ();
                }
                GUILayout.EndHorizontal ();
            }
        }
    }

    void showShakeTriggeredByActionListElement (SerializedProperty list, int shakeIndex)
    {
        GUILayout.BeginVertical ("box");
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("actionName"));
        if (shakeManager.nameList.Length > 0) {
            list.FindPropertyRelative ("nameIndex").intValue = EditorGUILayout.Popup ("External Shake Type", list.FindPropertyRelative ("nameIndex").intValue, shakeManager.nameList);
            list.FindPropertyRelative ("shakeName").stringValue = shakeManager.nameList [list.FindPropertyRelative ("nameIndex").intValue];

            EditorGUILayout.PropertyField (list.FindPropertyRelative ("useShakeEvent"));
            if (list.FindPropertyRelative ("useShakeEvent").boolValue) {
                EditorGUILayout.PropertyField (list.FindPropertyRelative ("eventAtStart"));
                EditorGUILayout.PropertyField (list.FindPropertyRelative ("eventAtEnd"));
            }

            if (GUILayout.Button ("Test Shake")) {
                if (Application.isPlaying) {
                    shakeManager.setCameraShakeByAction (list.FindPropertyRelative ("actionName").stringValue);
                }
            }
        }
        GUILayout.EndVertical ();
    }
}
#endif