using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
using UnityAsync;
using WaitUntil = UnityAsync.WaitUntil;
using System.Threading.Tasks;
using UnityEngine.UI;

public class GCZLLayer : MonoBehaviour
{
    public GameObject classPrefab;
    public GameObject informationPrefab;

    public RectTransform classContent;
    public RectTransform informationContent;
    public YZTLayer zTLayer;

    public Sprite[] sprites;

    private List<GameObject> informations = new List<GameObject>();

    private GameObject lastClassBtn;
    private int currentClass = -99;

    private GameObject InfoPanel;
    private Button InfoExitButton;
    private Button Info_DetailButton;
    private Text InfoTitleText;
    private Text InfoClassText;
    private Text InfoNoText;
    private Text InfoDayText;
    private RawImage InfoFM;

    private GameObject DetailPanel;
    private Button DetailExitButton;
    private Text DetailTitleText;

    private LayerUnitData currentData;

    private Button OpenAniButton;
    private Button CloseAniButton;

    private Button detail_modelButton;
    private Button detail_designButton;
    private Button detail_photoButton;
    private Button detail_videoButton;
    private CanvasGroup detail_modelCG;
    private CanvasGroup detail_designCG;
    private CanvasGroup detail_photoCG;
    private CanvasGroup detail_videoCG;
    private RawImage showFrame;
    private Button lastPhotoButton;
    private Button nextPhotoButton;
    public RenderTexture modelRT;

    public string[] BY_PhotoUrl;
    public string[] TK_PhotoUrl;
    public int photoIndex;

    public string[] BY_PdfUrl;
    public string[] TK_PdfUrl;
    public int pdfIndex;
    public string[] BY_PdfDownloadUrl;
    public string[] TK_PdfDownloadUrl;
    private Button downloadPdfButton;
    private int showTypeIndex = 0;
    
    [DllImport("__Internal")]
    private static extern void OpenNewWebsite(string str);

    private void Awake()
    {
        InfoPanel = this.transform.Find("InfoPanel").gameObject;
        InfoTitleText = InfoPanel.transform.Find("Title").GetComponent<Text>();
        InfoClassText = InfoPanel.transform.Find("Class").GetComponent<Text>();
        InfoNoText = InfoPanel.transform.Find("No").GetComponent<Text>();
        InfoDayText = InfoPanel.transform.Find("Day").GetComponent<Text>();
        InfoFM = InfoPanel.transform.Find("fm").GetComponent<RawImage>();
        InfoExitButton = InfoPanel.transform.Find("CloseButton").GetComponent<Button>();
        InfoExitButton.onClick.AddListener(() => { InfoPanel.SetActive(false); });
        Info_DetailButton = InfoPanel.transform.Find("MoreButton").GetComponent<Button>();
        Info_DetailButton.onClick.AddListener(() =>
        {
            DetailTitleText.text = currentData.name;
            OpenAniButton.gameObject.SetActive(currentData.name_pri.Equals("BuYuan") ||
                                               currentData.name_pri.Equals("TaoKou"));
            CloseAniButton.gameObject.SetActive(currentData.name_pri.Equals("BuYuan") ||
                                                currentData.name_pri.Equals("TaoKou"));
            ModelCameraCtrl._Instance.SetCameraActive(true);
            ResetDetailPanel();
            DetailPanel.SetActive(true);
        });

        DetailPanel = this.transform.Find("DetailPanel").gameObject;
        DetailTitleText = DetailPanel.transform.Find("Title").GetComponent<Text>();
        DetailExitButton = DetailPanel.transform.Find("CloseButton").GetComponent<Button>();
        DetailExitButton.onClick.AddListener(() =>
        {
            DetailPanel.SetActive(false);
            ModelCameraCtrl._Instance.SetCameraActive(false);
        });

        detail_modelButton = DetailPanel.transform.Find("ModelButton").GetComponent<Button>();
        detail_designButton = DetailPanel.transform.Find("DesignButton").GetComponent<Button>();
        detail_photoButton = DetailPanel.transform.Find("PhotoButton").GetComponent<Button>();
        detail_videoButton = DetailPanel.transform.Find("VideoButton").GetComponent<Button>();
        detail_modelCG = detail_modelButton.GetComponent<CanvasGroup>();
        detail_designCG = detail_designButton.GetComponent<CanvasGroup>();
        detail_photoCG = detail_photoButton.GetComponent<CanvasGroup>();
        detail_videoCG = detail_videoButton.GetComponent<CanvasGroup>();

        detail_modelButton.onClick.AddListener(() => { DetailShowType(0); });
        detail_designButton.onClick.AddListener(() => { DetailShowType(1); });
        detail_photoButton.onClick.AddListener(() => { DetailShowType(2); });
        detail_videoButton.onClick.AddListener(() => { DetailShowType(3); });

        showFrame = DetailPanel.transform.Find("ShowFrame").GetComponent<RawImage>();
        showFrame.texture = modelRT;

        lastPhotoButton = DetailPanel.transform.Find("LastPhotoButton").GetComponent<Button>();
        lastPhotoButton.onClick.AddListener(()=>
        {
            switch (showTypeIndex)
            {
                case 1:
                    ChangePDF((-1));
                    break;
                case 2:
                    ChangePhoto(-1);
                    break;
            }
        });
        nextPhotoButton = DetailPanel.transform.Find("NextPhotoButton").GetComponent<Button>();
        nextPhotoButton.onClick.AddListener(()=>
        {
            switch (showTypeIndex)
            {
                case 1:
                    ChangePDF((1));
                    break;
                case 2:
                    ChangePhoto(1);
                    break;
            }
        });

        downloadPdfButton = DetailPanel.transform.Find("DownButton").GetComponent<Button>();
        downloadPdfButton.onClick.AddListener(DownLoadPDF);
        
        OpenAniButton = DetailPanel.transform.Find("OpenAniButton").GetComponent<Button>();
        OpenAniButton.onClick.AddListener(() => { ActionInstance._Instance.ModelAni_On?.Invoke(); });
        CloseAniButton = DetailPanel.transform.Find("CloseAniButton").GetComponent<Button>();
        CloseAniButton.onClick.AddListener(() => { ActionInstance._Instance.ModelAni_Off?.Invoke(); });

        InfoPanel.SetActive(false);
        DetailPanel.SetActive(false);
    }

    // Start is called before the first frame update
    async void Start()
    {
        await InitData();
        StaticLod.instance.OnFoucusStatic(0);
        CameraManager.SwitchCamera(0);
        InitButton();
        InitInformation(0);
    }

    void InitButton()
    {
        for (int i = 0; i < zTLayer.layerDatas.Length; i++)
        {
            string name = zTLayer.layerDatas[i].layerName;
            int temp = i;
            GameObject obj = Instantiate(classPrefab);
            obj.transform.SetParent(classContent);
            obj.GetComponentInChildren<Text>().text = name;
            obj.transform.localScale = Vector3.one;
            if (i == 0)
            {
                obj.GetComponent<Image>().sprite = sprites[0];
                lastClassBtn = obj;
            }
            else
            {
                obj.GetComponent<Image>().sprite = sprites[1];
            }

            obj.GetComponent<Button>().onClick.AddListener(() =>
            {
                InitInformation(temp);
                lastClassBtn.GetComponent<Image>().sprite = sprites[1];
                obj.GetComponent<Image>().sprite = sprites[0];
                lastClassBtn = obj;
            });
        }
    }

    void InitInformation(int index)
    {
        if (currentClass == index) return;
        for (int i = informations.Count - 1; i >= 0; i--)
        {
            Destroy(informations[i]);
        }

        informations.Clear();
        currentClass = index;
        if (currentClass == 0)
        {
            for (int i = 0; i < GlobalData.layerUnitDatas.Count; i++)
            {
                if (GlobalData.layerUnitDatas[i].special)
                {
                    GameObject obj = Instantiate(informationPrefab);
                    string realName = GlobalData.layerUnitDatas[i].name;
                    string priName = GlobalData.layerUnitDatas[i].name_pri;
                    var objType = GlobalData.layerUnitDatas[i].type;
                    string className = GlobalData.layerUnitDatas[i].GetTypeName();
                    obj.transform.SetParent(informationContent);
                    obj.transform.Find("Name").GetComponentInChildren<Text>().text = realName;
                    obj.transform.Find("Class").GetComponentInChildren<Text>().text = className;
                    //todo
                    obj.transform.Find("No").GetComponentInChildren<Text>().text = "未知";
                    obj.transform.Find("Day").GetComponentInChildren<Text>().text = "近期";
                    obj.transform.Find("fm").GetComponent<RawImage>().texture =
                        TextureLoadHelp._Instance.GetTempTexture(priName);
                    obj.transform.localScale = Vector3.one;
                    informations.Add(obj);
                    int dataIndex = i;

                    obj.GetComponent<Button>().onClick.AddListener(() =>
                    {
                        currentData = GlobalData.layerUnitDatas[dataIndex];
                        StaticLod.instance.OnFoucusStatic(priName);
                        if (objType == LayerUnitType.ZZ || objType == LayerUnitType.BZ)
                        {
                            Info_DetailButton.gameObject.SetActive(true);
                        }
                        else
                        {
                            Info_DetailButton.gameObject.SetActive(false);
                        }

                        ShowInfoPanelData();
                    });
                }
            }
        }
        else
        {
            for (int i = 0; i < GlobalData.layerUnitDatas.Count; i++)
            {
                if (GlobalData.layerUnitDatas[i].type == (LayerUnitType)currentClass)
                {
                    GameObject obj = Instantiate(informationPrefab);
                    string realName = GlobalData.layerUnitDatas[i].name;
                    string priName = GlobalData.layerUnitDatas[i].name_pri;
                    var objType = GlobalData.layerUnitDatas[i].type;
                    string className = GlobalData.layerUnitDatas[i].GetTypeName();
                    obj.transform.SetParent(informationContent);
                    obj.transform.Find("Name").GetComponentInChildren<Text>().text = realName;
                    obj.transform.Find("Class").GetComponentInChildren<Text>().text = className;
                    //todo
                    obj.transform.Find("No").GetComponentInChildren<Text>().text = "未知";
                    obj.transform.Find("Day").GetComponentInChildren<Text>().text = "近期";
                    obj.transform.Find("fm").GetComponent<RawImage>().texture =
                        TextureLoadHelp._Instance.GetTempTexture(priName);
                    obj.transform.localScale = Vector3.one;
                    informations.Add(obj);
                    int dataIndex = i;
                    obj.GetComponent<Button>().onClick.AddListener(() =>
                    {
                        currentData = GlobalData.layerUnitDatas[dataIndex];
                        StaticLod.instance.OnFoucusStatic(priName);
                        if (objType == LayerUnitType.ZZ || objType == LayerUnitType.BZ)
                        {
                            Info_DetailButton.gameObject.SetActive(true);
                        }
                        else
                        {
                            Info_DetailButton.gameObject.SetActive(false);
                        }

                        ShowInfoPanelData();
                    });
                }
            }
        }
    }


    async Task InitData()
    {
        await new WaitUntil(() => { return GlobalData.layerUnitDatas.Count > 0; });
    }

    public void ShowInfoPanelData()
    {
        InfoTitleText.text = currentData.name;
        InfoClassText.text = currentData.GetTypeName();
        InfoFM.texture = TextureLoadHelp._Instance.GetTempTexture(currentData.name_pri);
        //todo
        InfoNoText.text = "未知";
        InfoDayText.text = "近期";
        InfoPanel.SetActive(true);
    }

    public void ResetDetailPanel()
    {
        photoIndex = 0;
        pdfIndex = 0;
        lastPhotoButton.gameObject.SetActive(false);
        nextPhotoButton.gameObject.SetActive(false);
        downloadPdfButton.gameObject.SetActive(false);
        DetailShowType(0);
    }

    public void DetailShowType(int index)
    {
        showTypeIndex = index;
        switch (index)
        {
            case 0:
                detail_modelCG.alpha = 1;
                detail_designCG.alpha = 0.6f;
                detail_photoCG.alpha = 0.6f;
                detail_videoCG.alpha = 0.6f;
                showFrame.texture = modelRT;
                lastPhotoButton.gameObject.SetActive(false);
                nextPhotoButton.gameObject.SetActive(false);
                OpenAniButton.gameObject.SetActive(currentData.name_pri.Equals("BuYuan") ||
                                                   currentData.name_pri.Equals("TaoKou"));
                CloseAniButton.gameObject.SetActive(currentData.name_pri.Equals("BuYuan") ||
                                                    currentData.name_pri.Equals("TaoKou"));
                downloadPdfButton.gameObject.SetActive(false);
                break;
            case 1:
                detail_modelCG.alpha = 0.6f;
                detail_designCG.alpha = 1f;
                detail_photoCG.alpha = 0.6f;
                detail_videoCG.alpha = 0.6f;
                showFrame.texture = null;
                lastPhotoButton.gameObject.SetActive(true);
                nextPhotoButton.gameObject.SetActive(true);
                OpenAniButton.gameObject.SetActive(false);
                CloseAniButton.gameObject.SetActive(false);
                ChangePDF(0);
                break;
            case 2:
                detail_modelCG.alpha = 0.6f;
                detail_designCG.alpha = 0.6f;
                detail_photoCG.alpha = 1f;
                detail_videoCG.alpha = 0.6f;
                showFrame.texture = null;
                lastPhotoButton.gameObject.SetActive(true);
                nextPhotoButton.gameObject.SetActive(true);
                OpenAniButton.gameObject.SetActive(false);
                CloseAniButton.gameObject.SetActive(false);
                downloadPdfButton.gameObject.SetActive(false);
                ChangePhoto(0);
                break;
            case 3:
                detail_modelCG.alpha = 0.6f;
                detail_designCG.alpha = 0.6f;
                detail_photoCG.alpha = 0.6f;
                detail_videoCG.alpha = 1f;
                showFrame.texture = null;
                lastPhotoButton.gameObject.SetActive(false);
                nextPhotoButton.gameObject.SetActive(false);
                OpenAniButton.gameObject.SetActive(false);
                CloseAniButton.gameObject.SetActive(false);
                downloadPdfButton.gameObject.SetActive(false);
                break;
        }
    }

    public void ChangePhoto(int moveIndex)
    {
        if (currentData.name_pri.Equals("BuYuan"))
        {
            switch (moveIndex)
            {
                case -1:
                    if (photoIndex - 1 >= 0)
                    {
                        photoIndex--;
                        TextureLoadHelp._Instance.LoadTexFromUrl(BY_PhotoUrl[photoIndex], showFrame);
                    }
                    break;
                case 0:
                    photoIndex = 0;
                    TextureLoadHelp._Instance.LoadTexFromUrl(BY_PhotoUrl[photoIndex], showFrame);
                    break;
                case 1:
                    if (photoIndex + 1 <= BY_PhotoUrl.Length-1)
                    {
                        photoIndex++;
                        TextureLoadHelp._Instance.LoadTexFromUrl(BY_PhotoUrl[photoIndex], showFrame);
                    }
                    break;
            }
        }
        if (currentData.name_pri.Equals("TaoKou"))
        {
            switch (moveIndex)
            {
                case -1:
                    if (photoIndex - 1 >= 0)
                    {
                        photoIndex--;
                        TextureLoadHelp._Instance.LoadTexFromUrl(TK_PhotoUrl[photoIndex], showFrame);
                    }
                    break;
                case 0:
                    photoIndex = 0;
                    TextureLoadHelp._Instance.LoadTexFromUrl(TK_PhotoUrl[photoIndex], showFrame);
                    break;
                case 1:
                    if (photoIndex + 1 <= TK_PhotoUrl.Length-1)
                    {
                        photoIndex++;
                        TextureLoadHelp._Instance.LoadTexFromUrl(TK_PhotoUrl[photoIndex], showFrame);
                    }
                    break;
            }
        }
    }
    
    
    public void ChangePDF(int moveIndex)
    {
        if (currentData.name_pri.Equals("BuYuan"))
        {
            switch (moveIndex)
            {
                case -1:
                    if (pdfIndex - 1 >= 0)
                    {
                        pdfIndex--;
                        TextureLoadHelp._Instance.LoadTexFromUrl(BY_PdfUrl[pdfIndex], showFrame);
                    }
                    break;
                case 0:
                    downloadPdfButton.gameObject.SetActive(true);
                    pdfIndex = 0;
                    TextureLoadHelp._Instance.LoadTexFromUrl(BY_PdfUrl[pdfIndex], showFrame);
                    break;
                case 1:
                    if (pdfIndex + 1 <= BY_PdfUrl.Length-1)
                    {
                        pdfIndex++;
                        TextureLoadHelp._Instance.LoadTexFromUrl(BY_PdfUrl[pdfIndex], showFrame);
                    }
                    break;
            }
        }
        if (currentData.name_pri.Equals("TaoKou"))
        {
            switch (moveIndex)
            {
                case -1:
                    if (pdfIndex - 1 >= 0)
                    {
                        pdfIndex--;
                        TextureLoadHelp._Instance.LoadTexFromUrl(TK_PdfUrl[pdfIndex], showFrame);
                    }
                    break;
                case 0:
                    downloadPdfButton.gameObject.SetActive(true);
                    pdfIndex = 0;
                    TextureLoadHelp._Instance.LoadTexFromUrl(TK_PdfUrl[pdfIndex], showFrame);
                    break;
                case 1:
                    if (pdfIndex + 1 <= TK_PdfUrl.Length-1)
                    {
                        pdfIndex++;
                        TextureLoadHelp._Instance.LoadTexFromUrl(TK_PdfUrl[pdfIndex], showFrame);
                    }
                    break;
            }
        }
    }

    public void DownLoadPDF()
    {
        if (currentData.name_pri.Equals("BuYuan"))
        {
            for (int i = 0; i < BY_PdfDownloadUrl.Length; i++)
            {
                OpenNewWebsite(BY_PdfDownloadUrl[i]);     
            }
        }
        if (currentData.name_pri.Equals("TaoKou"))
        {
            for (int i = 0; i < TK_PdfDownloadUrl.Length; i++)
            {
                OpenNewWebsite(TK_PdfDownloadUrl[i]);     
            }
        }
    }
}