using UnityEngine;
using System.Collections;

#if UNITY_EDITOR
using UnityEditor;

[CanEditMultipleObjects]
[CustomEditor (typeof (elevatorSystem))]
public class elevatorSystemEditor : Editor
{
    SerializedProperty elevatorSystemEnabled;

    SerializedProperty currentFloor;
    SerializedProperty elevatorSpeed;
    SerializedProperty floorHeight;
    SerializedProperty hasInsideElevatorDoor;
    SerializedProperty insideElevatorDoor;
    SerializedProperty elevatorSwitchPrefab;
    SerializedProperty elevatorDoorPrefab;
    SerializedProperty addSwitchInNewFloors;
    SerializedProperty addDoorInNewFloors;
    SerializedProperty doorsClosed;
    SerializedProperty changeIconFloorWhenMoving;
    SerializedProperty moving;
    SerializedProperty useEventsOnMoveStartAndEnd;
    SerializedProperty eventOnMoveStart;
    SerializedProperty eventOnMoveEnd;
    SerializedProperty showGizmo;
    SerializedProperty gizmoLabelColor;
    SerializedProperty floors;

    SerializedProperty tagToCheckToMove;

    SerializedProperty canUseElevatorButtonsWithoutPlayerInside;


    elevatorSystem elevator;
    GUIStyle style = new GUIStyle ();
    bool expanded;

    GUIStyle buttonStyle = new GUIStyle ();


    void OnEnable ()
    {
        elevatorSystemEnabled = serializedObject.FindProperty ("elevatorSystemEnabled");

        currentFloor = serializedObject.FindProperty ("currentFloor");
        elevatorSpeed = serializedObject.FindProperty ("elevatorSpeed");
        floorHeight = serializedObject.FindProperty ("floorHeight");
        hasInsideElevatorDoor = serializedObject.FindProperty ("hasInsideElevatorDoor");
        insideElevatorDoor = serializedObject.FindProperty ("insideElevatorDoor");
        elevatorSwitchPrefab = serializedObject.FindProperty ("elevatorSwitchPrefab");
        elevatorDoorPrefab = serializedObject.FindProperty ("elevatorDoorPrefab");
        addSwitchInNewFloors = serializedObject.FindProperty ("addSwitchInNewFloors");
        addDoorInNewFloors = serializedObject.FindProperty ("addDoorInNewFloors");
        doorsClosed = serializedObject.FindProperty ("doorsClosed");
        changeIconFloorWhenMoving = serializedObject.FindProperty ("changeIconFloorWhenMoving");
        moving = serializedObject.FindProperty ("moving");
        useEventsOnMoveStartAndEnd = serializedObject.FindProperty ("useEventsOnMoveStartAndEnd");
        eventOnMoveStart = serializedObject.FindProperty ("eventOnMoveStart");
        eventOnMoveEnd = serializedObject.FindProperty ("eventOnMoveEnd");
        showGizmo = serializedObject.FindProperty ("showGizmo");
        gizmoLabelColor = serializedObject.FindProperty ("gizmoLabelColor");
        floors = serializedObject.FindProperty ("floors");

        tagToCheckToMove = serializedObject.FindProperty ("tagToCheckToMove");

        canUseElevatorButtonsWithoutPlayerInside = serializedObject.FindProperty ("canUseElevatorButtonsWithoutPlayerInside");

        elevator = (elevatorSystem)target;
    }

    void OnSceneGUI ()
    {
        if (!Application.isPlaying) {
            if (elevator.showGizmo) {
                style.normal.textColor = elevator.gizmoLabelColor;

                for (int i = 0; i < elevator.floors.Count; i++) {
                    if (elevator.floors [i].floorPosition != null) {
                        Handles.Label (elevator.floors [i].floorPosition.position, elevator.floors [i].name + " - " + elevator.floors [i].floorNumber, style);
                    }
                }
            }
        }
    }

    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 (elevatorSystemEnabled);

        EditorGUILayout.PropertyField (canUseElevatorButtonsWithoutPlayerInside); 

        EditorGUILayout.Space ();

        EditorGUILayout.PropertyField (currentFloor);
        EditorGUILayout.PropertyField (elevatorSpeed);
        EditorGUILayout.PropertyField (floorHeight);
        EditorGUILayout.PropertyField (hasInsideElevatorDoor);
        if (hasInsideElevatorDoor.boolValue) {
            EditorGUILayout.PropertyField (insideElevatorDoor);
        }

        EditorGUILayout.PropertyField (elevatorSwitchPrefab);
        EditorGUILayout.PropertyField (elevatorDoorPrefab);
        EditorGUILayout.PropertyField (addSwitchInNewFloors);
        EditorGUILayout.PropertyField (addDoorInNewFloors);

        EditorGUILayout.PropertyField (doorsClosed);
        EditorGUILayout.PropertyField (changeIconFloorWhenMoving);

        EditorGUILayout.Space ();
        showSimpleList (tagToCheckToMove);
        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Elevator State", "window");
        GUILayout.Label ("Moving\t " + moving.boolValue);
        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Events Settings", "window");
        EditorGUILayout.PropertyField (useEventsOnMoveStartAndEnd);
        if (useEventsOnMoveStartAndEnd.boolValue) {

            EditorGUILayout.Space ();

            EditorGUILayout.PropertyField (eventOnMoveStart);
            EditorGUILayout.PropertyField (eventOnMoveEnd);
        }
        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

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

        EditorGUILayout.Space ();

        GUILayout.EndVertical ();

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Floors List", "window");
        showUpperList (floors);
        GUILayout.EndVertical ();

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

    void showListElementInfo (SerializedProperty list)
    {
        GUILayout.BeginVertical ("box");
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("name"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("floorNumber"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("floorPosition"));
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("hasFloorButton"));
        if (list.FindPropertyRelative ("hasFloorButton").boolValue) {
            EditorGUILayout.PropertyField (list.FindPropertyRelative ("floorButton"));
        }
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("hasOutSideElevatorDoor"));
        if (list.FindPropertyRelative ("hasOutSideElevatorDoor").boolValue) {
            EditorGUILayout.PropertyField (list.FindPropertyRelative ("outsideElevatorDoor"));
        }

        EditorGUILayout.Space ();

        GUILayout.BeginVertical ("Events Settings", "window");
        EditorGUILayout.PropertyField (list.FindPropertyRelative ("useEventsOnMoveStartAndEnd"));
        if (list.FindPropertyRelative ("useEventsOnMoveStartAndEnd").boolValue) {

            EditorGUILayout.Space ();

            EditorGUILayout.PropertyField (list.FindPropertyRelative ("eventOnMoveStart"));
            EditorGUILayout.PropertyField (list.FindPropertyRelative ("eventOnMoveEnd"));
        }
        GUILayout.EndVertical ();
        GUILayout.EndVertical ();
    }

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

        EditorGUILayout.Space ();

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

        EditorGUILayout.Space ();

        if (list.isExpanded) {

            EditorGUILayout.Space ();

            GUILayout.Label ("Number Of Floors: \t" + list.arraySize);

            EditorGUILayout.Space ();

            GUILayout.BeginHorizontal ();
            if (GUILayout.Button ("Add Floor")) {
                elevator.addNewFloor ();
            }
            if (GUILayout.Button ("Clear List")) {
                elevator.removeAllFloors ();
            }
            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++) {
                GUILayout.BeginHorizontal ();
                GUILayout.BeginHorizontal ("box");
                expanded = false;
                EditorGUILayout.Space ();

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

                    EditorGUILayout.Space ();

                    GUILayout.EndVertical ();
                }

                GUILayout.EndHorizontal ();
                if (expanded) {
                    GUILayout.BeginVertical ();
                } else {
                    GUILayout.BeginHorizontal ();
                }
                if (GUILayout.Button ("x")) {
                    elevator.removeFloor (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 ();
    }

    void showSimpleList (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")) {
                list.arraySize++;
            }
            if (GUILayout.Button ("Clear")) {
                list.arraySize = 0;
            }
            GUILayout.EndHorizontal ();

            EditorGUILayout.Space ();

            for (int i = 0; i < list.arraySize; i++) {
                GUILayout.BeginHorizontal ();
                if (i < list.arraySize && i >= 0) {
                    EditorGUILayout.PropertyField (list.GetArrayElementAtIndex (i), new GUIContent ("", null, ""), false);
                }
                GUILayout.BeginHorizontal ();
                if (GUILayout.Button ("x")) {
                    list.DeleteArrayElementAtIndex (i);
                    return;
                }
                GUILayout.EndHorizontal ();
                GUILayout.EndHorizontal ();
            }
        }
    }
}
#endif