using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.UI;
using System.IO;
using AibisDream.FixSystem;
using Cinemachine;
using AibisDream.Framework;
using Yarn.Unity;

namespace AibisDream
{
    public class ExpressionManager : MonoBehaviour
    {
        public GameObject expressView;
        public TMP_Text totalPointsText;
        public int totalPoints = 10;

        public TMP_Text driverSlotText;
        public TMP_Text logOutput;
        public Button matchButton;
        public Button applyAndTestButton;

        public GameObject matchResultsPanel;
        public GameObject driverButtonPrefab;
        public string currentUser = "UserA";
        private int[] valuesCurrent = new int[5];
        private DriverProfile currentDriver = null;
        private DriverDatabase db = new DriverDatabase();
        private List<GameObject> currentResultButtons = new List<GameObject>();

        void Start()
        {
            //CloseView();
            FixSystemCenter.SystemDic.Register(this);

            var virtualCam = transform.Find("Expression Camera").GetComponent<ICinemachineCamera>();
            var virtualCam2 = transform.Find("Expression Deep Camera").GetComponent<ICinemachineCamera>();
            CameraKit.Instance.RegisterCamera(CameraEnum.Expression, virtualCam);
            CameraKit.Instance.RegisterCamera(CameraEnum.ExpressionDeep, virtualCam2);

            db.LoadFromCSV(Path.Combine(Application.streamingAssetsPath, "drivers.csv"));

            matchButton.onClick.AddListener(MatchDriver);
            applyAndTestButton.onClick.AddListener(ApplyAndTestDriver);

            UpdateUI();
        }

        public void OpenView()
        {
            expressView.SetActive(true);
        }

        public void CloseView()
        {
            expressView.SetActive(false);
        }

        public void AdjustValue(int index, int delta)
        {
            if (delta > 0 && totalPoints <= 0) return;
            if (delta < 0 && valuesCurrent[index] <= 0) return;
            if (valuesCurrent[index] + delta > 5) return;

            valuesCurrent[index] += delta;
            totalPoints -= delta;
            CheckDriverStillValid();
            UpdateUI();
        }

        void UpdateUI()
        {
            totalPointsText.text = $"剩余点数: {totalPoints}";
        }

        void MatchDriver()
        {
            currentResultButtons.ForEach(btn => Destroy(btn));
            currentResultButtons.Clear();

            var matches = db.MatchDrivers(
                valuesCurrent[0], valuesCurrent[1],
                valuesCurrent[2], valuesCurrent[3],
                valuesCurrent[4]);

            if (matches.Count > 0)
            {
                matchResultsPanel.SetActive(true);
                foreach (var driver in matches)
                {
                    var btnObj = Instantiate(driverButtonPrefab, matchResultsPanel.transform);
                    var text = btnObj.GetComponentInChildren<TMP_Text>();
                    if (text) text.text = driver.Name;
                    var btn = btnObj.GetComponent<Button>();
                    if (btn) btn.onClick.AddListener(() => SelectDriver(driver));
                    currentResultButtons.Add(btnObj);
                }
                logOutput.text = $"共找到 {matches.Count} 个可用驱动，请选择。";
            }
            else
            {
                matchResultsPanel.SetActive(false);
                currentDriver = null;
                driverSlotText.text = "No Driver";
                logOutput.text = "没有找到匹配的驱动。";
            }
        }

        void SelectDriver(DriverProfile driver)
        {
            currentDriver = driver;
            driverSlotText.text = $"Driver: {driver.Name}";
            logOutput.text = $"已选中驱动：{driver.Name}，请点击应用并测试以运行。";
        }

        void ApplyAndTestDriver()
        {
            if (currentDriver == null)
            {
                logOutput.text = "未选择任何驱动。";
                return;
            }

            string nodeName = $"{currentUser}_{currentDriver.Name}";
            DialogController.Instance.StartDialogNode(nodeName);
        }

        void CheckDriverStillValid()
        {
            if (currentDriver != null && !currentDriver.Matches(
                valuesCurrent[0], valuesCurrent[1],
                valuesCurrent[2], valuesCurrent[3],
                valuesCurrent[4]))
            {
                currentDriver = null;
                driverSlotText.text = "No Driver";
                logOutput.text = "当前驱动与属性不匹配，已卸载。";
            }
        }

        [YarnCommand("setUser")]
        public void SetCurrentUser(string userName)
        {
            currentUser=userName;
        }
    }
}