import Stack from "@mui/material/Stack";
import { useState } from "react";
import Typography from "@mui/material/Typography";
import Accordion from "@mui/material/Accordion";
import AccordionSummary from "@mui/material/AccordionSummary";
import AccordionDetails from "@mui/material/AccordionDetails";
import ExpandMoreIcon from "@mui/icons-material/ExpandMore";
import { useI18n } from "../../hooks/I18n";
import Box from "@mui/material/Box";
import { useFavWords } from "../../hooks/FavWords";
import DictCont from "../Selection/DictCont";
import SugCont from "../Selection/SugCont";
import DownloadButton from "./DownloadButton";
import UploadButton from "./UploadButton";
import Button from "@mui/material/Button";
import ClearAllIcon from "@mui/icons-material/ClearAll";
import Alert from "@mui/material/Alert";
import { isValidWord } from "../../libs/utils";
import { kissLog } from "../../libs/log";
import { useConfirm } from "../../hooks/Confirm";
import { useSetting } from "../../hooks/Setting";
import { dictHandlers } from "../Selection/DictHandler";

function FavAccordion({ word, index }) {
  const [expanded, setExpanded] = useState(false);
  const { setting } = useSetting();
  const { enDict, enSug } = setting?.tranboxSetting || {};

  const handleChange = (e) => {
    setExpanded((pre) => !pre);
  };

  return (
    <Accordion expanded={expanded} onChange={handleChange}>
      <AccordionSummary expandIcon={<ExpandMoreIcon />}>
        {/* <Typography>{`[${new Date(
          createdAt
        ).toLocaleString()}] ${word}`}</Typography> */}
        <Typography>{`${index + 1}. ${word}`}</Typography>
      </AccordionSummary>
      <AccordionDetails>
        {expanded && (
          <Stack spacing={2}>
            <DictCont text={word} enDict={enDict} />
            <SugCont text={word} enSug={enSug} />
          </Stack>
        )}
      </AccordionDetails>
    </Accordion>
  );
}

export default function FavWords() {
  const i18n = useI18n();
  const { favList, wordList, mergeWords, clearWords } = useFavWords();
  const { setting } = useSetting();
  const confirm = useConfirm();

  const handleImport = (data) => {
    try {
      const newWords = data
        .split("\n")
        .map((line) => line.split(",")[0].trim())
        .filter(isValidWord);
      mergeWords(newWords);
    } catch (err) {
      kissLog("import rules", err);
    }
  };

  const handleClearWords = async () => {
    const isConfirmed = await confirm({
      confirmText: i18n("confirm_title"),
      cancelText: i18n("cancel"),
    });
    if (isConfirmed) {
      clearWords();
    }
  };

  const handleTranslation = async () => {
    const { enDict } = setting?.tranboxSetting;
    const dict = dictHandlers[enDict];
    if (!dict) return "";

    const tranList = [];
    for (const word of wordList) {
      try {
        const data = await dict.apiFn(word);
        const title = `## ${dict.reWord(data) || word}`;
        const tran = dict
          .toText(data)
          .map((line) => `- ${line}`)
          .join("\n");
        tranList.push([title, tran].join("\n"));
      } catch (err) {
        kissLog("export translation", err);
      }
    }

    return tranList.join("\n\n");
  };

  return (
    <Box>
      <Stack spacing={3}>
        <Alert severity="info">{i18n("favorite_words_helper")}</Alert>

        <Stack
          direction="row"
          alignItems="center"
          spacing={2}
          useFlexGap
          flexWrap="wrap"
        >
          <UploadButton
            text={i18n("import")}
            handleImport={handleImport}
            fileType="text"
            fileExts={[".txt", ".csv"]}
          />
          <DownloadButton
            handleData={() => wordList.join("\n")}
            text={i18n("export")}
            fileName={`kiss-words_${Date.now()}.txt`}
          />
          <DownloadButton
            handleData={handleTranslation}
            text={i18n("export_translation")}
            fileName={`kiss-words_${Date.now()}.md`}
          />
          <Button
            size="small"
            variant="outlined"
            onClick={handleClearWords}
            startIcon={<ClearAllIcon />}
          >
            {i18n("clear_all")}
          </Button>
        </Stack>

        <Box>
          {favList.map(([word, { createdAt }], index) => (
            <FavAccordion
              key={word}
              index={index}
              word={word}
              createdAt={createdAt}
            />
          ))}
        </Box>
      </Stack>
    </Box>
  );
}