import { useMemo, useState } from "react";
import {
  Tab,
  ObjectType,
  tableFieldHeight,
  tableHeaderHeight,
  tableColorStripHeight,
} from "../../data/constants";
import {
  IconEdit,
  IconMore,
  IconMinus,
  IconDeleteStroked,
  IconKeyStroked,
} from "@douyinfe/semi-icons";
import { Popover, Tag, Button, SideSheet } from "@douyinfe/semi-ui";
import { useLayout, useSettings, useDiagram, useSelect } from "../../hooks";
import TableInfo from "../EditorSidePanel/TablesTab/TableInfo";
import { useTranslation } from "react-i18next";
import { dbToTypes } from "../../data/datatypes";
import { isRtl } from "../../i18n/utils/rtl";
import i18n from "../../i18n/i18n";

export default function Table(props) {
  const [hoveredField, setHoveredField] = useState(null);
  const { database } = useDiagram();
  const {
    tableData,
    onPointerDown,
    setHoveredTable,
    handleGripField,
    setLinkingLine,
  } = props;
  const { layout } = useLayout();
  const { deleteTable, deleteField } = useDiagram();
  const { settings } = useSettings();
  const { t } = useTranslation();
  const { selectedElement, setSelectedElement, bulkSelectedElements } =
    useSelect();

  const borderColor = useMemo(
    () => (settings.mode === "light" ? "border-zinc-300" : "border-zinc-600"),
    [settings.mode],
  );

  const height =
    tableData.fields.length * tableFieldHeight + tableHeaderHeight + 7;

  const isSelected = useMemo(() => {
    return (
      (selectedElement.id == tableData.id &&
        selectedElement.element === ObjectType.TABLE) ||
      bulkSelectedElements.some(
        (e) => e.type === ObjectType.TABLE && e.id === tableData.id,
      )
    );
  }, [selectedElement, tableData, bulkSelectedElements]);

  const openEditor = () => {
    if (!layout.sidebar) {
      setSelectedElement((prev) => ({
        ...prev,
        element: ObjectType.TABLE,
        id: tableData.id,
        open: true,
      }));
    } else {
      setSelectedElement((prev) => ({
        ...prev,
        currentTab: Tab.TABLES,
        element: ObjectType.TABLE,
        id: tableData.id,
        open: true,
      }));
      if (selectedElement.currentTab !== Tab.TABLES) return;
      document
        .getElementById(`scroll_table_${tableData.id}`)
        .scrollIntoView({ behavior: "smooth" });
    }
  };

  return (
    <>
      <foreignObject
        key={tableData.id}
        x={tableData.x}
        y={tableData.y}
        width={settings.tableWidth}
        height={height}
        className="group drop-shadow-lg rounded-md cursor-move"
        onPointerDown={onPointerDown}
      >
        <div
          onDoubleClick={openEditor}
          className={`border-2 hover:border-dashed hover:border-blue-500
               select-none rounded-lg w-full ${
                 settings.mode === "light"
                   ? "bg-zinc-100 text-zinc-800"
                   : "bg-zinc-800 text-zinc-200"
               } ${isSelected ? "border-solid border-blue-500" : borderColor}`}
          style={{ direction: "ltr" }}
        >
          <div
            className="h-[10px] w-full rounded-t-md"
            style={{ backgroundColor: tableData.color }}
          />
          <div
            className={`overflow-hidden font-bold h-[40px] flex justify-between items-center border-b border-gray-400 ${
              settings.mode === "light" ? "bg-zinc-200" : "bg-zinc-900"
            }`}
          >
            <div className=" px-3 overflow-hidden text-ellipsis whitespace-nowrap">
              {tableData.name}
            </div>
            <div className="hidden group-hover:block">
              <div className="flex justify-end items-center mx-2">
                <Button
                  icon={<IconEdit />}
                  size="small"
                  theme="solid"
                  style={{
                    backgroundColor: "#2f68adb3",
                    marginRight: "6px",
                  }}
                  onClick={openEditor}
                />
                <Popover
                  key={tableData.id}
                  content={
                    <div className="popover-theme">
                      <div className="mb-2">
                        <strong>{t("comment")}:</strong>{" "}
                        {tableData.comment === "" ? (
                          t("not_set")
                        ) : (
                          <div>{tableData.comment}</div>
                        )}
                      </div>
                      <div>
                        <strong
                          className={`${
                            tableData.indices.length === 0 ? "" : "block"
                          }`}
                        >
                          {t("indices")}:
                        </strong>{" "}
                        {tableData.indices.length === 0 ? (
                          t("not_set")
                        ) : (
                          <div>
                            {tableData.indices.map((index, k) => (
                              <div
                                key={k}
                                className={`flex items-center my-1 px-2 py-1 rounded ${
                                  settings.mode === "light"
                                    ? "bg-gray-100"
                                    : "bg-zinc-800"
                                }`}
                              >
                                <i className="fa-solid fa-thumbtack me-2 mt-1 text-slate-500"></i>
                                <div>
                                  {index.fields.map((f) => (
                                    <Tag color="blue" key={f} className="me-1">
                                      {f}
                                    </Tag>
                                  ))}
                                </div>
                              </div>
                            ))}
                          </div>
                        )}
                      </div>
                      <Button
                        icon={<IconDeleteStroked />}
                        type="danger"
                        block
                        style={{ marginTop: "8px" }}
                        onClick={() => deleteTable(tableData.id)}
                      >
                        {t("delete")}
                      </Button>
                    </div>
                  }
                  position="rightTop"
                  showArrow
                  trigger="click"
                  style={{ width: "200px", wordBreak: "break-word" }}
                >
                  <Button
                    icon={<IconMore />}
                    type="tertiary"
                    size="small"
                    style={{
                      backgroundColor: "#808080b3",
                      color: "white",
                    }}
                  />
                </Popover>
              </div>
            </div>
          </div>
          {tableData.fields.map((e, i) => {
            return settings.showFieldSummary ? (
              <Popover
                key={i}
                content={
                  <div className="popover-theme">
                    <div
                      className="flex justify-between items-center pb-2"
                      style={{ direction: "ltr" }}
                    >
                      <p className="me-4 font-bold">{e.name}</p>
                      <p className="ms-4">
                        {e.type +
                          ((dbToTypes[database][e.type].isSized ||
                            dbToTypes[database][e.type].hasPrecision) &&
                          e.size &&
                          e.size !== ""
                            ? "(" + e.size + ")"
                            : "")}
                      </p>
                    </div>
                    <hr />
                    {e.primary && (
                      <Tag color="blue" className="me-2 my-2">
                        {t("primary")}
                      </Tag>
                    )}
                    {e.unique && (
                      <Tag color="amber" className="me-2 my-2">
                        {t("unique")}
                      </Tag>
                    )}
                    {e.notNull && (
                      <Tag color="purple" className="me-2 my-2">
                        {t("not_null")}
                      </Tag>
                    )}
                    {e.increment && (
                      <Tag color="green" className="me-2 my-2">
                        {t("autoincrement")}
                      </Tag>
                    )}
                    <p>
                      <strong>{t("default_value")}: </strong>
                      {e.default === "" ? t("not_set") : e.default}
                    </p>
                    <p>
                      <strong>{t("comment")}: </strong>
                      {e.comment === "" ? t("not_set") : e.comment}
                    </p>
                  </div>
                }
                position="right"
                showArrow
                style={
                  isRtl(i18n.language)
                    ? { direction: "rtl" }
                    : { direction: "ltr" }
                }
              >
                {field(e, i)}
              </Popover>
            ) : (
              field(e, i)
            );
          })}
        </div>
      </foreignObject>
      <SideSheet
        title={t("edit")}
        size="small"
        visible={
          selectedElement.element === ObjectType.TABLE &&
          selectedElement.id === tableData.id &&
          selectedElement.open &&
          !layout.sidebar
        }
        onCancel={() =>
          setSelectedElement((prev) => ({
            ...prev,
            open: !prev.open,
          }))
        }
        style={{ paddingBottom: "16px" }}
      >
        <div className="sidesheet-theme">
          <TableInfo data={tableData} />
        </div>
      </SideSheet>
    </>
  );

  function field(fieldData, index) {
    return (
      <div
        className={`${
          index === tableData.fields.length - 1
            ? ""
            : "border-b border-gray-400"
        } group h-[36px] px-2 py-1 flex justify-between items-center gap-1 w-full overflow-hidden`}
        onPointerEnter={(e) => {
          if (!e.isPrimary) return;

          setHoveredField(index);
          setHoveredTable({
            tableId: tableData.id,
            fieldId: fieldData.id,
          });
        }}
        onPointerLeave={(e) => {
          if (!e.isPrimary) return;

          setHoveredField(null);
          setHoveredTable({
            tableId: null,
            fieldId: null,
          });
        }}
        onPointerDown={(e) => {
          // Required for onPointerLeave to trigger when a touch pointer leaves
          // https://stackoverflow.com/a/70976017/1137077
          e.target.releasePointerCapture(e.pointerId);
        }}
      >
        <div
          className={`${
            hoveredField === index ? "text-zinc-400" : ""
          } flex items-center gap-2 overflow-hidden`}
        >
          <button
            className="shrink-0 w-[10px] h-[10px] bg-[#2f68adcc] rounded-full"
            onPointerDown={(e) => {
              if (!e.isPrimary) return;

              handleGripField();
              setLinkingLine((prev) => ({
                ...prev,
                startFieldId: fieldData.id,
                startTableId: tableData.id,
                startX: tableData.x + 15,
                startY:
                  tableData.y +
                  index * tableFieldHeight +
                  tableHeaderHeight +
                  tableColorStripHeight +
                  12,
                endX: tableData.x + 15,
                endY:
                  tableData.y +
                  index * tableFieldHeight +
                  tableHeaderHeight +
                  tableColorStripHeight +
                  12,
              }));
            }}
          />
          <span className="overflow-hidden text-ellipsis whitespace-nowrap">
            {fieldData.name}
          </span>
        </div>
        <div className="text-zinc-400">
          {hoveredField === index ? (
            <Button
              theme="solid"
              size="small"
              style={{
                backgroundColor: "#d42020b3",
              }}
              icon={<IconMinus />}
              onClick={() => deleteField(fieldData, tableData.id)}
            />
          ) : settings.showDataTypes ? (
            <div className="flex gap-1 items-center">
              {fieldData.primary && <IconKeyStroked />}
              {!fieldData.notNull && <span className="font-mono">?</span>}
              <span
                className={
                  "font-mono " + dbToTypes[database][fieldData.type].color
                }
              >
                {fieldData.type +
                  ((dbToTypes[database][fieldData.type].isSized ||
                    dbToTypes[database][fieldData.type].hasPrecision) &&
                  fieldData.size &&
                  fieldData.size !== ""
                    ? `(${fieldData.size})`
                    : "")}
              </span>
            </div>
          ) : null}
        </div>
      </div>
    );
  }
}
