import React, { useCallback, useContext, useEffect, useMemo, useRef, useState } from "react";
import { AppsHome } from "./AppsHome";
import { Spacer } from "../../common/Spacer";
import { MyContext, getBaseApiReact } from "../../App";
import { AppInfo } from "./AppInfo";
import {
  executeEvent,
  subscribeToEvent,
  unsubscribeFromEvent,
} from "../../utils/events";
import { AppsNavBar } from "./AppsNavBar";
import { AppsParent } from "./Apps-styles";
import { AppViewer } from "./AppViewer";
import AppViewerContainer from "./AppViewerContainer";
import ShortUniqueId from "short-unique-id";
import { AppPublish } from "./AppPublish";
import { useRecoilState } from "recoil";
import { AppsCategory } from "./AppsCategory";
import { AppsLibrary } from "./AppsLibrary";

const uid = new ShortUniqueId({ length: 8 });

export const Apps = ({ mode, setMode, show , myName}) => {
  const [availableQapps, setAvailableQapps] = useState([]);
  const [selectedAppInfo, setSelectedAppInfo] = useState(null);
  const [selectedCategory, setSelectedCategory] = useState(null)
  const [tabs, setTabs] = useState([]);
  const [selectedTab, setSelectedTab] = useState(null);
  const [isNewTabWindow, setIsNewTabWindow] = useState(false);
  const [categories, setCategories] = useState([])


  const myApp = useMemo(()=> {
   
   return availableQapps.find((app)=> app.name === myName && app.service === 'APP')
  }, [myName, availableQapps])
  const myWebsite = useMemo(()=> {
   
    return availableQapps.find((app)=> app.name === myName && app.service === 'WEBSITE')
   }, [myName, availableQapps])

  useEffect(() => {
    setTimeout(() => {
      executeEvent("setTabsToNav", {
        data: {
          tabs: tabs,
          selectedTab: selectedTab,
          isNewTabWindow: isNewTabWindow,
        },
      });
    }, 100);
  }, [show, tabs, selectedTab, isNewTabWindow]);

  const getCategories = React.useCallback(async () => {
    try {
      const url = `${getBaseApiReact()}/arbitrary/categories`;

      const response = await fetch(url, {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
        },
      });
      if (!response?.ok) return;
      const responseData = await response.json();
     
      setCategories(responseData);
     
    } catch (error) {
    } finally {
      // dispatch(setIsLoadingGlobal(false))
    }
  }, []);

  const getQapps = React.useCallback(async () => {
    try {
      let apps = [];
      let websites = [];
      // dispatch(setIsLoadingGlobal(true))
      const url = `${getBaseApiReact()}/arbitrary/resources/search?service=APP&mode=ALL&limit=0&includestatus=true&includemetadata=true`;

      const response = await fetch(url, {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
        },
      });
      if (!response?.ok) return;
      const responseData = await response.json();
      const urlWebsites = `${getBaseApiReact()}/arbitrary/resources/search?service=WEBSITE&mode=ALL&limit=0&includestatus=true&includemetadata=true`;

      const responseWebsites = await fetch(urlWebsites, {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
        },
      });
      if (!responseWebsites?.ok) return;
      const responseDataWebsites = await responseWebsites.json();
    
      apps = responseData;
      websites = responseDataWebsites;
      const combine = [...apps, ...websites];
      setAvailableQapps(combine);
    } catch (error) {
    } finally {
      // dispatch(setIsLoadingGlobal(false))
    }
  }, []);
  useEffect(() => {
    getQapps();
    getCategories()
  }, [getQapps, getCategories]);

  const selectedAppInfoFunc = (e) => {
    const data = e.detail?.data;
    setSelectedAppInfo(data);
    setMode("appInfo");
  };

  useEffect(() => {
    subscribeToEvent("selectedAppInfo", selectedAppInfoFunc);

    return () => {
      unsubscribeFromEvent("selectedAppInfo", selectedAppInfoFunc);
    };
  }, []);

  const selectedAppInfoCategoryFunc = (e) => {
    const data = e.detail?.data;
    setSelectedAppInfo(data);
    setMode("appInfo-from-category");
  };

  useEffect(() => {
    subscribeToEvent("selectedAppInfoCategory", selectedAppInfoCategoryFunc);

    return () => {
      unsubscribeFromEvent("selectedAppInfoCategory", selectedAppInfoCategoryFunc);
    };
  }, []);

  

  const selectedCategoryFunc = (e) => {
    const data = e.detail?.data;
    setSelectedCategory(data);
    setMode("category");
  };

  useEffect(() => {
    subscribeToEvent("selectedCategory", selectedCategoryFunc);

    return () => {
      unsubscribeFromEvent("selectedCategory", selectedCategoryFunc);
    };
  }, []);

  
  const navigateBackFunc = (e) => {
    if(mode === 'category'){
      setMode("library");
      setSelectedCategory(null)
    } else if (mode === "appInfo-from-category") {
      setMode("category");
    } else if (mode === "appInfo") {
      setMode("library");
    } else if (mode === "library") {
      if (isNewTabWindow) {
        setMode("viewer");
      } else {
        setMode("home");
      }
    } else if(mode === 'publish'){
      setMode('library')
    } else {
      const iframeId = `browser-iframe-${selectedTab?.tabId}`;
      const iframe = document.getElementById(iframeId);
      // Go Back in the iframe's history
      if (iframe) {
        if (iframe && iframe.contentWindow) {
          const iframeWindow = iframe.contentWindow;
          if (iframeWindow && iframeWindow.history) {
            iframeWindow.history.back();
          }
        }
      }
    }
  };

  useEffect(() => {
    subscribeToEvent("navigateBack", navigateBackFunc);

    return () => {
      unsubscribeFromEvent("navigateBack", navigateBackFunc);
    };
  }, [mode, selectedTab]);

  const addTabFunc = (e) => {
    const data = e.detail?.data;
    const newTab = {
      ...data,
      tabId: uid.rnd(),
    };
    setTabs((prev) => [...prev, newTab]);
    setSelectedTab(newTab);
    setMode("viewer");

    setIsNewTabWindow(false);
  };

  useEffect(() => {
    subscribeToEvent("addTab", addTabFunc);

    return () => {
      unsubscribeFromEvent("addTab", addTabFunc);
    };
  }, [tabs]);

  const setSelectedTabFunc = (e) => {
    const data = e.detail?.data;

    setSelectedTab(data);
    setTimeout(() => {
      executeEvent("setTabsToNav", {
        data: {
          tabs: tabs,
          selectedTab: data,
          isNewTabWindow: isNewTabWindow,
        },
      });
    }, 100);
    setIsNewTabWindow(false);
  };

  useEffect(() => {
    subscribeToEvent("setSelectedTab", setSelectedTabFunc);

    return () => {
      unsubscribeFromEvent("setSelectedTab", setSelectedTabFunc);
    };
  }, [tabs, isNewTabWindow]);

  const removeTabFunc = (e) => {
    const data = e.detail?.data;
    const copyTabs = [...tabs].filter((tab) => tab?.tabId !== data?.tabId);
    if (copyTabs?.length === 0) {
      setMode("home");
    } else {
      setSelectedTab(copyTabs[0]);
    }
    setTabs(copyTabs);
    setSelectedTab(copyTabs[0]);
    setTimeout(() => {
      executeEvent("setTabsToNav", {
        data: {
          tabs: copyTabs,
          selectedTab: copyTabs[0],
        },
      });
    }, 400);
  };

  useEffect(() => {
    subscribeToEvent("removeTab", removeTabFunc);

    return () => {
      unsubscribeFromEvent("removeTab", removeTabFunc);
    };
  }, [tabs]);

  const setNewTabWindowFunc = (e) => {
    setIsNewTabWindow(true);
    setSelectedTab(null)
  };

  useEffect(() => {
    subscribeToEvent("newTabWindow", setNewTabWindowFunc);

    return () => {
      unsubscribeFromEvent("newTabWindow", setNewTabWindowFunc);
    };
  }, [tabs]);


  return (
    <AppsParent
      sx={{
        display: !show && "none",
      }}
    >
      {mode !== "viewer" && !selectedTab  && <Spacer height="30px" />}
      {mode === "home" && (
        <AppsHome availableQapps={availableQapps}  setMode={setMode} myApp={myApp} myWebsite={myWebsite} />
      )}
    
        <AppsLibrary
        isShow={mode === "library" && !selectedTab}
          availableQapps={availableQapps}
          setMode={setMode}
          myName={myName}
          hasPublishApp={!!(myApp || myWebsite)}
          categories={categories}
        />
   
      {mode === "appInfo" && <AppInfo app={selectedAppInfo} myName={myName} />}
      {mode === "appInfo-from-category" && <AppInfo app={selectedAppInfo} myName={myName} />}
      <AppsCategory  availableQapps={availableQapps} isShow={mode === 'category' && !selectedTab} category={selectedCategory} myName={myName} />
      {mode === "publish" && <AppPublish names={myName ?  [myName] : []} categories={categories} />}

      {tabs.map((tab) => {
        return (
          <AppViewerContainer
            hide={isNewTabWindow}
            isSelected={tab?.tabId === selectedTab?.tabId}
            app={tab}
          />
        );
      })}

      {isNewTabWindow && mode === "viewer" && (
        <>
          <Spacer height="30px" />
          <AppsHome availableQapps={availableQapps} setMode={setMode} myApp={myApp} myWebsite={myWebsite}  />
        </>
      )}
      {mode !== "viewer" && !selectedTab  && <Spacer height="180px" />}
    </AppsParent>
  );
};