import copy from "copy-to-clipboard";
import dayjs from "dayjs";
import { memo, useEffect, useRef, useState } from "react";
import { toast } from "react-hot-toast";
import { useTranslation } from "react-i18next";
import { useNavigate } from "react-router-dom";
import { useEditorStore, useLocationStore, useMemoStore, useUserStore } from "../store/module";
import Icon from "./Icon";
import MemoContent from "./MemoContent";
import MemoResources from "./MemoResources";
import showShareMemo from "./ShareMemoDialog";
import showPreviewImageDialog from "./PreviewImageDialog";
import showEmbedMemoDialog from "./EmbedMemoDialog";
import showChangeMemoCreatedTsDialog from "./ChangeMemoCreatedTsDialog";
import "../less/memo.less";

interface Props {
  memo: Memo;
  readonly?: boolean;
}

export const getFormatedMemoTimeStr = (time: number, locale = "en"): string => {
  if (Date.now() - time < 1000 * 60 * 60 * 24) {
    return dayjs(time).locale(locale).fromNow();
  } else {
    return dayjs(time).locale(locale).format("YYYY/MM/DD HH:mm:ss");
  }
};

const Memo: React.FC<Props> = (props: Props) => {
  const { memo, readonly } = props;
  const { t, i18n } = useTranslation();
  const navigate = useNavigate();
  const editorStore = useEditorStore();
  const locationStore = useLocationStore();
  const userStore = useUserStore();
  const memoStore = useMemoStore();
  const [createdTimeStr, setCreatedTimeStr] = useState<string>(getFormatedMemoTimeStr(memo.createdTs, i18n.language));
  const memoContainerRef = useRef<HTMLDivElement>(null);
  const isVisitorMode = userStore.isVisitorMode() || readonly;

  useEffect(() => {
    let intervalFlag: any = -1;
    if (Date.now() - memo.createdTs < 1000 * 60 * 60 * 24) {
      intervalFlag = setInterval(() => {
        setCreatedTimeStr(getFormatedMemoTimeStr(memo.createdTs, i18n.language));
      }, 1000 * 1);
    }

    return () => {
      clearInterval(intervalFlag);
    };
  }, [i18n.language]);

  const handleViewMemoDetailPage = () => {
    navigate(`/m/${memo.id}`);
  };

  const handleShowEmbedMemoDialog = () => {
    showEmbedMemoDialog(memo.id);
  };

  const handleCopyContent = () => {
    copy(memo.content);
    toast.success(t("message.succeed-copy-content"));
  };

  const handleTogglePinMemoBtnClick = async () => {
    if (isVisitorMode) {
      return;
    }

    try {
      if (memo.pinned) {
        await memoStore.unpinMemo(memo.id);
      } else {
        await memoStore.pinMemo(memo.id);
      }
    } catch (error) {
      // do nth
    }
  };

  const handleEditMemoClick = () => {
    if (isVisitorMode) {
      return;
    }

    editorStore.setEditMemoWithId(memo.id);
  };

  const handleArchiveMemoClick = async () => {
    if (isVisitorMode) {
      return;
    }

    try {
      await memoStore.patchMemo({
        id: memo.id,
        rowStatus: "ARCHIVED",
      });
    } catch (error: any) {
      console.error(error);
      toast.error(error.response.data.message);
    }

    if (editorStore.getState().editMemoId === memo.id) {
      editorStore.clearEditMemo();
    }
  };

  const handleGenerateMemoImageBtnClick = () => {
    showShareMemo(memo);
  };

  const handleMemoContentClick = async (e: React.MouseEvent) => {
    const targetEl = e.target as HTMLElement;

    if (targetEl.className === "tag-span") {
      const tagName = targetEl.innerText.slice(1);
      const currTagQuery = locationStore.getState().query?.tag;
      if (currTagQuery === tagName) {
        locationStore.setTagQuery(undefined);
      } else {
        locationStore.setTagQuery(tagName);
      }
    } else if (targetEl.classList.contains("todo-block")) {
      if (isVisitorMode) {
        return;
      }

      const status = targetEl.dataset?.value;
      const todoElementList = [...(memoContainerRef.current?.querySelectorAll(`span.todo-block[data-value=${status}]`) ?? [])];
      for (const element of todoElementList) {
        if (element === targetEl) {
          const index = todoElementList.indexOf(element);
          const tempList = memo.content.split(status === "DONE" ? /- \[x\] / : /- \[ \] /);
          let finalContent = "";

          for (let i = 0; i < tempList.length; i++) {
            if (i === 0) {
              finalContent += `${tempList[i]}`;
            } else {
              if (i === index + 1) {
                finalContent += status === "DONE" ? "- [ ] " : "- [x] ";
              } else {
                finalContent += status === "DONE" ? "- [x] " : "- [ ] ";
              }
              finalContent += `${tempList[i]}`;
            }
          }
          await memoStore.patchMemo({
            id: memo.id,
            content: finalContent,
          });
        }
      }
    } else if (targetEl.tagName === "IMG") {
      const imgUrl = targetEl.getAttribute("src");
      if (imgUrl) {
        showPreviewImageDialog([imgUrl], 0);
      }
    }
  };

  const handleMemoContentDoubleClick = (e: React.MouseEvent) => {
    if (isVisitorMode) {
      return;
    }

    const loginUser = userStore.state.user;
    if (loginUser && !loginUser.localSetting.enableDoubleClickEditing) {
      return;
    }
    const targetEl = e.target as HTMLElement;

    if (targetEl.className === "tag-span") {
      return;
    } else if (targetEl.classList.contains("todo-block")) {
      return;
    }

    editorStore.setEditMemoWithId(memo.id);
  };

  const handleMemoCreatedTimeClick = () => {
    showChangeMemoCreatedTsDialog(memo.id);
  };

  const handleMemoVisibilityClick = (visibility: Visibility) => {
    const currVisibilityQuery = locationStore.getState().query?.visibility;
    if (currVisibilityQuery === visibility) {
      locationStore.setMemoVisibilityQuery(undefined);
    } else {
      locationStore.setMemoVisibilityQuery(visibility);
    }
  };

  return (
    <div className={`memo-wrapper ${"memos-" + memo.id} ${memo.pinned ? "pinned" : ""}`} ref={memoContainerRef}>
      {memo.pinned && <div className="corner-container"></div>}
      <div className="memo-top-wrapper">
        <div className="status-text-container">
          <span className="time-text" onDoubleClick={handleMemoCreatedTimeClick}>
            {createdTimeStr}
          </span>
          {isVisitorMode && (
            <a className="name-text" href={`/u/${memo.creatorId}`}>
              @{memo.creatorName}
            </a>
          )}
          {memo.visibility !== "PRIVATE" && !isVisitorMode && (
            <span
              className={`status-text ${memo.visibility.toLocaleLowerCase()}`}
              onClick={() => handleMemoVisibilityClick(memo.visibility)}
            >
              {memo.visibility}
            </span>
          )}
        </div>
        {!isVisitorMode && (
          <div className="btns-container">
            <span className="btn more-action-btn">
              <Icon.MoreHorizontal className="icon-img" />
            </span>
            <div className="more-action-btns-wrapper">
              <div className="more-action-btns-container">
                <div className="btns-container">
                  <div className="btn" onClick={handleTogglePinMemoBtnClick}>
                    <Icon.Flag className={`icon-img ${memo.pinned ? "text-green-600" : ""}`} />
                    <span className="tip-text">{memo.pinned ? t("common.unpin") : t("common.pin")}</span>
                  </div>
                  <div className="btn" onClick={handleEditMemoClick}>
                    <Icon.Edit3 className="icon-img" />
                    <span className="tip-text">{t("common.edit")}</span>
                  </div>
                  <div className="btn" onClick={handleGenerateMemoImageBtnClick}>
                    <Icon.Share className="icon-img" />
                    <span className="tip-text">{t("common.share")}</span>
                  </div>
                </div>
                <span className="btn" onClick={handleCopyContent}>
                  {t("memo.copy")}
                </span>
                <span className="btn" onClick={handleViewMemoDetailPage}>
                  {t("memo.view-detail")}
                </span>
                <span className="btn" onClick={handleShowEmbedMemoDialog}>
                  Embed memo
                </span>
                <span className="btn archive-btn" onClick={handleArchiveMemoClick}>
                  {t("common.archive")}
                </span>
              </div>
            </div>
          </div>
        )}
      </div>
      <MemoContent
        content={memo.content}
        onMemoContentClick={handleMemoContentClick}
        onMemoContentDoubleClick={handleMemoContentDoubleClick}
      />
      <MemoResources resourceList={memo.resourceList} />
    </div>
  );
};

export default memo(Memo);