using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
/* PK模式的角色选择界面 */
public class RoleSelectView : MonoBehaviour, MenuBackInterface
{
    bool[] inited = {false, false};

    void Start()
    {
        HomeMgr.CacheView(this);
        PersistenHandler.ins?.menuBackCtr.views.Add(this);
        TopBarView.NeedShowIt(this);

        GlobalData.localPK_playerRoleIDs[0] = LoginMgr.myUserInfo.avatarID;
        RenderPlayer(0);
        RenderPlayer(1);
    }

    void OnDestroy() {
        HomeMgr.RemoveCacheView(this);
        PersistenHandler.ins?.menuBackCtr.views.Remove(this);
        TopBarView.DontNeedShowIt(this);
    }

    public bool OnMenuBack() {
        Destroy(gameObject);
        return true;
    }

    void RenderPlayer(int playerIndex) {
        Transform root = this.transform.Find("Player" + (playerIndex + 1));
        int roleID = GlobalData.localPK_playerRoleIDs[playerIndex];
        if (!inited[playerIndex]) {
            inited[playerIndex] = true;
            Button left = root.Find("Left").GetComponent<Button>();
            left.onClick.AddListener(delegate() {
                AudioMgr.ins.PlayBtn();
                NextRole(playerIndex, -1);
                RenderPlayer(playerIndex);
            });
            Button right = root.Find("Right").GetComponent<Button>();
            right.onClick.AddListener(delegate() {
                AudioMgr.ins.PlayBtn();
                NextRole(playerIndex, +1);
                RenderPlayer(playerIndex);
            });
        }
        (Sprite sprite, string name) = RoleMgr.GetRoleInfo(roleID);
        root.Find("Avatar").GetComponent<Image>().sprite = sprite;
        root.Find("Name").GetComponent<Text>().text = name;
    }

    void NextRole(int playerIndex, int variety) {
        GlobalData.localPK_playerRoleIDs[playerIndex] += variety;
        if (GlobalData.localPK_playerRoleIDs[playerIndex] < 1) {
            GlobalData.localPK_playerRoleIDs[playerIndex] = RoleMgr.roleCount;
        } else if (GlobalData.localPK_playerRoleIDs[playerIndex] > RoleMgr.roleCount) {
            GlobalData.localPK_playerRoleIDs[playerIndex] = 1;
        }
        if (GlobalData.localPK_playerRoleIDs[playerIndex] == GlobalData.localPK_playerRoleIDs[1 - playerIndex]) {
            NextRole(playerIndex, variety);
        }
    }

    public void back() {
        AudioMgr.ins.PlayBtn();
        Destroy(this.gameObject);
    }

    public void StartGame() {
        AudioMgr.ins.PlayBtn();
        JC.Unity.UI.CanvasUtils.PlusSortOrder(
            gameObject,
            GameObject.Instantiate(SceneResMgr.ins.GetPrefab("PKGameOptionView")),
            1
        );
    }
}