import {
  List,
  ListItemButton,
  ListItemIcon,
  ListItemText,
  Collapse,
  IconButton,
} from "@mui/material";
import React, { useContext, useEffect, useRef } from "react";
import PendingIcon from "@mui/icons-material/Pending";
import TaskAltIcon from "@mui/icons-material/TaskAlt";
import ExpandLess from "@mui/icons-material/ExpandLess";
import ExpandMore from "@mui/icons-material/ExpandMore";
import { MyContext, getBaseApiReact, isMobile } from "../../App";

export const TaskManger = ({ getUserInfo }) => {
  const { txList, setTxList, memberGroups } = useContext(MyContext);
  const [open, setOpen] = React.useState(false);
  const intervals = useRef({});

  const handleClick = () => {
    setOpen((prev) => !prev);
  };

  const getStatus = ({ signature }, callback) => {
    let stop = false;
    const getAnswer = async () => {
      const getTx = async () => {
        const url = `${getBaseApiReact()}/transactions/signature/${signature}`;
        const res = await fetch(url);
        return await res.json();
      };

      if (!stop) {
        stop = true;
        try {
          const txTransaction = await getTx();
          if (!txTransaction.error && txTransaction.signature) {
            await new Promise((res) =>
              setTimeout(() => {
                res(null);
              }, 300000)
            );
            setTxList((prev) => {
              let previousData = [...prev];
              const findTxWithSignature = previousData.findIndex(
                (tx) => tx.signature === signature
              );
              if (findTxWithSignature !== -1) {
                previousData[findTxWithSignature].done = true;
                return previousData;
              }
              return previousData;
            });
            if (callback) {
              callback(true);
            }
            clearInterval(intervals.current[signature]);
          }
        } catch (error) {}
        stop = false;
      }
    };

    intervals.current[signature] = setInterval(getAnswer, 120000);
  };

  useEffect(() => {
    setTxList((prev) => {
      let previousData = [...prev];
      memberGroups.forEach((group) => {
        const findGroup = txList.findIndex(
          (tx) => tx?.type === "joined-group" && tx?.groupId === group.groupId
        );
        if (findGroup !== -1 && !previousData[findGroup]?.done) {
          previousData[findGroup].done = true;
        }
      });

      memberGroups.forEach((group) => {
        const findGroup = txList.findIndex(
          (tx) =>
            tx?.type === "created-group" && tx?.groupName === group.groupName
        );
        if (findGroup !== -1 && !previousData[findGroup]?.done) {
          previousData[findGroup].done = true;
        }
      });

      prev.forEach((tx, index) => {
        if (
          tx?.type === "leave-group" &&
          memberGroups.findIndex((group) => tx?.groupId === group.groupId) === -1
        ) {
          previousData[index].done = true;
        }
      });

      prev.forEach((tx) => {
        if (
          ["created-common-secret", "joined-group-request", "join-request-accept"].includes(
            tx?.type
          ) &&
          tx?.signature &&
          !tx.done
        ) {
          if (!intervals.current[tx.signature]) {
            getStatus({ signature: tx.signature });
          }
        }
        if (tx?.type === "register-name" && tx?.signature && !tx.done) {
          if (!intervals.current[tx.signature]) {
            getStatus({ signature: tx.signature }, getUserInfo);
          }
        }
      });

      return previousData;
    });
  }, [memberGroups, getUserInfo]);

  if (isMobile || txList?.length === 0 || txList.every((item) => item?.done))
    return null;

  return (
    <>
      {!open && (
        <IconButton
          onClick={handleClick}
          sx={{
            position: "fixed",
            bottom: 16,
            right: 16,
            bgcolor: "primary.main",
            color: "white",
            ":hover": { bgcolor: "primary.dark" },
          }}
        >
          {txList.some((item) => !item.done) ? <PendingIcon /> : <TaskAltIcon />}
        </IconButton>
      )}
      {open && (
        <List
          sx={{
            position: "fixed",
            bottom: 16,
            right: 16,
            width: "300px",
            maxHeight: "400px",
            bgcolor: "background.paper",
            boxShadow: 4,
            overflow: "auto",
            zIndex: 10,
            padding: '0px'
          }}
          component="nav"
        >
          <ListItemButton  onClick={handleClick}>
            <ListItemIcon>
              {txList.some((item) => !item.done) ? (
                <PendingIcon sx={{
                  color:'white'
                }} />
              ) : (
                <TaskAltIcon sx={{
                  color:'white'
                }} />
              )}
            </ListItemIcon>
            <ListItemText primary="Ongoing Transactions" />
            {open ? <ExpandLess /> : <ExpandMore />}
          </ListItemButton>
          <Collapse in={open} timeout="auto" unmountOnExit>
            <List component="div" disablePadding>
              {txList.map((item) => (
                <ListItemButton key={item?.signature} sx={{ pl: 4 }}>
                  <ListItemText
                    primary={item?.done ? item.labelDone : item.label}
                  />
                </ListItemButton>
              ))}
            </List>
          </Collapse>
        </List>
      )}
    </>
  );
};