using UnityEngine;
using System.Collections;

#if UNITY_EDITOR
using UnityEditor;

[CustomEditor (typeof (vehicleCameraShake))]
public class vehicleCameraShakeEditor : Editor
{
    SerializedProperty headBobEnabled;
    SerializedProperty externalForceStateName;
    SerializedProperty shakingActive;
    SerializedProperty playerBobState;
    SerializedProperty bobStatesList;

    string currentState;
    bool expanded;

    GUIStyle buttonStyle = new GUIStyle ();

    void OnEnable ()
    {
        headBobEnabled = serializedObject.FindProperty ("headBobEnabled");
        externalForceStateName = serializedObject.FindProperty ("externalForceStateName");
        shakingActive = serializedObject.FindProperty ("shakingActive");
        playerBobState = serializedObject.FindProperty ("playerBobState");
        bobStatesList = serializedObject.FindProperty ("bobStatesList");
    }

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

        EditorGUILayout.Space ();

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

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

        GUILayout.BeginVertical ("Main Settings", "window");
        EditorGUILayout.PropertyField (headBobEnabled);
        EditorGUILayout.PropertyField (externalForceStateName);
        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Camera State", "window");
        GUILayout.Label ("Shaking Active: \t" + shakingActive.boolValue);
        EditorGUILayout.Space ();
        if (shakingActive.boolValue) {
            if (playerBobState != null) {
                currentState = playerBobState.FindPropertyRelative ("Name").stringValue;
            }
        } else {
            currentState = "Idle";
        }
        GUILayout.Label ("Current Shake State: \t" + currentState);
        GUILayout.EndVertical ();

        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Camera Shake List", "window");
        showUpperList (bobStatesList);
        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

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

        EditorGUILayout.Space ();
    }

    void showListElementInfo (SerializedProperty list)
    {
        GUILayout.BeginVertical ("box");
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("Name"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("eulAmount"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("eulSpeed"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("eulSmooth"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("stateEnabled"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("isCurrentState"));
        GUILayout.EndVertical ();
    }

    void showUpperList (SerializedProperty list)
    {
        GUILayout.BeginVertical ();

        EditorGUILayout.Space ();

        if (GUILayout.Button ("Show/Hide Camera Shake States", buttonStyle)) {
            list.isExpanded = !list.isExpanded;
        }

        EditorGUILayout.Space ();

        if (list.isExpanded) {
            GUILayout.Label ("Number Of States: \t" + list.arraySize);

            EditorGUILayout.Space ();

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

            EditorGUILayout.Space ();

            GUILayout.BeginHorizontal ();
            if (GUILayout.Button ("Expand All")) {
                for (int i = 0; i < list.arraySize; i++) {
                    list.GetArrayElementAtIndex (i).isExpanded = true;
                }
            }
            if (GUILayout.Button ("Collapse All")) {
                for (int i = 0; i < list.arraySize; i++) {
                    list.GetArrayElementAtIndex (i).isExpanded = false;
                }
            }
            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;
                        showListElementInfo (list.GetArrayElementAtIndex (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 ();
            }
        }
        GUILayout.EndVertical ();
    }
}
#endif