using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using UnityEngine.EventSystems;

public class ScrollViewAdapter : MonoBehaviour
{

    public RectTransform prefab;
    public RectTransform content;
    public int curAction;
    ScEditor sce;
    Scenario sc;
    Manager man;
    Scrollbar scroll=null;

    public void Init()
    {
        sc = GameObject.Find("ScEditor").GetComponent<ScEditor>().SC;
        man = GameObject.Find("Manager").GetComponent<Manager>();
        if (sc == null)
        {
            Debug.Log(" Panel2 Start: sc = null");
            return;
        }
        sce = GameObject.Find("ScEditor").GetComponent<ScEditor>();
        sc = sce.SC;
        scroll = GameObject.Find("ActionsViewScrollbar").GetComponent<Scrollbar>();
        //Debug.Log(" Start: sc.curModeSc.acts.Count = " + sc.curModeSc.acts.Count);
        InvokeRepeating("MyFixedUpdate", 0, 0.25f);
    }

    public void MyFixedUpdate()
    {
        if (sc == null)
        {
            //Debug.Log(" Panel2 FixedUpdate: sc == null ");
            return;
        }
        if (sc.curModeSc == null)
        {
            //Debug.Log(" Panel2 FixedUpdate: sc.curModeSc == null ");
            return;
        }
        if (scroll == null) return;
        if (sc.curModeSc.acts.Count == 0) return;

        int min;
        int cnt = sc.curModeSc.acts.Count;
        if (cnt > 16) cnt -= 16;
        min = Mathf.FloorToInt((1.0f - scroll.value) * cnt);
        for (int i = min; i < min+17; i++) //for (int i = 0; i < sc.curModeSc.acts.Count; i++)
        {
            GameObject go_ai = GameObject.Find("ActionItem" + i);
            if (go_ai == null)
            {
                //Debug.Log("ActionItem" + i + " not found. curModeActs = " + sc.curModeSc.acts.Count);
                continue;
            }
            Button btn = go_ai.GetComponent<Button>();
            ColorBlock colors = btn.colors;
            colors.normalColor = Color.white;
            if (i == curAction)
            {
                colors.normalColor = new Color(160f / 255f, 230f / 255f, 160f / 255f);
            }
            btn.colors = colors;
        }
        //Debug.Log("   FixedUpdate curAction = " + curAction + " sc.curModeActs.Count = " + sc.curModeSc.acts.Count);
    }

    public void UpdateItems()
    {
        sc = GameObject.Find("ScEditor").GetComponent<ScEditor>().SC;
        var models = new TestItemModel[sc.curModeSc.acts.Count];
        for (int i = 0; i < sc.curModeSc.acts.Count; i++)
        {
            models[i] = new TestItemModel();
            models[i].name = "ActionItem" + i;
            models[i].buttonText = (i+1) + ". " + sc.curModeSc.acts[i].title;
            models[i].index = i;
        }

        foreach (Transform child in content)
            Destroy(child.gameObject);

        foreach (var model in models)
        {
            var instance = GameObject.Instantiate(prefab.gameObject) as GameObject;
            instance.transform.SetParent(content, false);
            InitializeItemView(instance, model);
        }
        if (models.Length == 0)
            curAction = -1;
        else
            onActionViewChange(0);
        //Debug.Log("UpdateItems curAction = " + curAction + " sc.curModeActs.Count = " + sc.curModeSc.acts.Count + " model.len = " + models.Length);
    }

    void InitializeItemView(GameObject viewGameObject, TestItemModel model)
    {
        TestItemView view = new TestItemView(viewGameObject.transform);
        view.clickButton.name = model.name;
        view.clickButton.GetComponentInChildren<Text>().text = model.buttonText;
        view.clickButton.onClick.AddListener( 
            () =>
            {
                onActionViewChange(model.index);
            }
        );
    }
    public int tap = 0;
    public void onActionViewChange(int index)
    {
        if(index == -1)
        {
            sce.SetCurObject(null);
            return;
        }
        curAction = index;

        UnityObject uo = man.objects.Find(sc.curModeSc.acts[curAction].objName);
        UnityObject tmp_uo = uo;
        string panel = "";
        if (uo != null && uo.dim == "2D")
        {
            while (tmp_uo != null)
            {
                if (tmp_uo.type == "panel2D")
                {
                    panel = tmp_uo.name; break;
                }
                tmp_uo = tmp_uo.parent;
            }
        }

        tap++;

        if (tap == 1)
        {
            if (curAction >= sc.curModeSc.acts.Count) curAction = sc.curModeSc.acts.Count - 1;
            //Debug.Log("changed = " + curAction + ", acts = "+ sc.curModeActs.Count);
            for (int i = 0; i < sc.curModeSc.acts.Count; i++)
            {
                var colors = GameObject.Find("ActionItem" + i).GetComponent<Button>().colors;
                colors.normalColor = Color.white;
                if (i == index)
                    colors.normalColor = new Color(160f / 255f, 230f / 255f, 160f / 255f); //Color.yellow;
                GameObject.Find("ActionItem" + i).GetComponent<Button>().colors = colors;
            }
            if (sc.curModeSc.acts[curAction].objName != "" && sc.curModeSc.acts[curAction].type != "switchMFIScreen")
                sce.SetCurObject(man.objects.Find(sc.curModeSc.acts[curAction].objName).gameObject);
            //else
            //    sce.SetCurObject(null);

            ScAction lastCamAct = null;  // переезд камеры в последнее установленное в сценарии положение
            for (int i = curAction; i >= 0; i--)
                if (sc.curModeSc.acts[i].type == "setCurCameraPos")
                {
                    lastCamAct = sc.curModeSc.acts[i];
                    break;
                }
            if (lastCamAct != null && man.player.state != "play" && man.is3D)
            {
                if(!man.is3D && panel != "" && man.opened2Dpanel != panel)
                    man.SwitchTo3D();
                man.player.isScEditorCameraMoving = true;
                man.player.RunAction(lastCamAct);
                man.mouseEnterUI();
            }

            StartCoroutine(DoubleTapInterval());
        }
        else if (tap == 2 && uo != null) // двойной клик на действии в списке
        {
            if (uo.dim == "2D" && panel != "") // если объект в действии "2Д" - открываем его панель
            {
                if (!man.is3D && man.opened2Dpanel != panel)
                    man.SwitchTo3D();
                if (man.is3D)
                    man.SwitchTo2D(panel);
            }
            if (uo.dim == "3D") // если "3Д" - просто возвращаемся в 3Д
            {
                if (!man.is3D) man.SwitchTo3D();
            }
            tap = 0;
        }
    }

    IEnumerator DoubleTapInterval()
    {
        yield return new WaitForSeconds(0.5f);
        this.tap = 0;
    }

    public class TestItemView
    {
        public Button clickButton;

        public TestItemView(Transform rootView)
        {
            clickButton = rootView.Find("ActionClickButton").GetComponent<Button>();
            if (clickButton == null) Debug.Log("prefab clickButton = null");
        }
    }

    public class TestItemModel
    {
        public string name;
        public string buttonText;
        public int index;
    }
}