import "./style.scss";
import React, { useState, useEffect } from "react";

import search from "./search.png";
import close from "./close.png";
import go from "./go.png";
import arrow from "./arrow.png";
import ShopsWithFilter from "../ShopsWithFilter/ShopsWithFilter";
const STATES = {
  init: 0,
  moreFac: 1,
  facList: 2,
};
export const DefaultPopupStates = STATES;
const initMarginBottom = 47;
const DefaultPopup = ({
  state,
  setState,
  onSearch,
  facilities,
  onClickFac,
  mall,
  onClick,
  setEnd,
  hasTab,
  blurMap = () => {},
}) => {
  const marginBottomStateMap = {
    0: 47,
    1: hasTab
      ? window.innerHeight - 52 - 179 - 98
      : window.innerHeight - 52 - 179,
  };
  const baseMarginBottom = marginBottomStateMap[state];
  const [facList, setFacList] = useState(null);
  const [focused, setFocused] = useState(null);
  const [start, setStart] = useState(null);
  const [marginBottom, setMarginBottom] = useState(null);
  const [doTransition, setdoTransition] = useState(false);
  useEffect(() => {
    setdoTransition(true);
    setMarginBottom(baseMarginBottom);
    setTimeout(() => {
      setdoTransition(false);
    }, 500);
  }, [state]);
  const handleTouchStart = (e) => {
    if (start) return;
    setStart({
      identifier: e.changedTouches[0].identifier,
      y: e.changedTouches[0].clientY,
    });
  };
  const handleTouchMove = (e) => {
    if (!start) return;
    const touch = Array.from(e.changedTouches).find(
      ({ identifier }) => identifier === start.identifier
    );
    if (!touch) return;
    const delta = touch.clientY - start.y;
    setMarginBottom(baseMarginBottom - delta);
  };
  const handleTouchEnd = (e) => {
    if (!start) return;
    const touch = Array.from(e.changedTouches).find(
      ({ identifier }) => identifier === start.identifier
    );
    if (!touch) return;
    setStart(null);
    const delta = touch.clientY - start.y;
    const newState =
      state === STATES.init && delta < -100
        ? STATES.moreFac
        : state === STATES.moreFac && delta > 100
        ? STATES.init
        : state;

    if (state === newState) {
      setdoTransition(true);
      setMarginBottom(baseMarginBottom);
      setTimeout(() => {
        setdoTransition(false);
      }, 500);
    } else setState(newState);
  };

  return (
    <>
      {state === STATES.init || state === STATES.moreFac ? (
        <div
          className={"dp" + (state === STATES.moreFac ? " more-fac" : "")}
          style={{
            marginBottom: marginBottom + "px",
            transition: !doTransition ? "none" : "margin-bottom 0.5s ease",
          }}
          onTouchStart={handleTouchStart}
          onTouchMove={handleTouchMove}
          onTouchCancel={handleTouchEnd}
          onTouchEnd={handleTouchEnd}
        >
          <div
            className="ts"
            onClick={() =>
              setState(state === STATES.moreFac ? STATES.init : STATES.moreFac)
            }
          >
            <img className="t1" src={arrow} />
          </div>

          <div className="search" onClick={onSearch}>
            <img className="icon" src={search}></img>
            <div className="sep"></div>
            搜索店铺
          </div>
          <div className="facs">
            {Object.entries(facilities).map(([name, list]) => (
              <div
                className="fac"
                key={name}
                onClick={() => {
                  list.sort((a, b) => a.floorOrder - b.floorOrder);
                  setFacList(list);
                  setState(STATES.facList);
                }}
              >
                <img src={list[0].url}></img>
                {name}
              </div>
            ))}
          </div>
        </div>
      ) : (
        <>
          <img
            src={close}
            className="close"
            onClick={(e) => {
              e.preventDefault();
              e.stopPropagation();
              setState(STATES.init);
              setFacList(null);
              blurMap();
            }}
          ></img>
          <div className="dp1">
            {facList &&
              facList.map((fac, i) => {
                const showRow1 =
                  i === 0 || fac.floorName !== facList[i - 1].floorName;
                const isActive = focused === fac.id;
                return (
                  <div key={fac.id}>
                    {showRow1 && (
                      <div className={"row1" + (i === 0 ? "" : " has-border")}>
                        {fac.floorName}
                      </div>
                    )}
                    <div
                      className={[
                        "row2",
                        isActive ? "active" : "",
                        !showRow1 ? "has-margin" : "",
                      ].join(" ")}
                      onClick={() => {
                        setFocused(fac.id);
                        onClickFac(fac.id);
                      }}
                    >
                      {fac.name}
                      <span className="meta">{fac.floorName}</span>
                      {isActive && (
                        <div
                          className="go"
                          src={go}
                          onClick={(e) => {
                            e.stopPropagation();
                            setState(STATES.init);
                            onClickFac(fac.id);
                          }}
                        >
                          GO
                        </div>
                      )}
                    </div>
                  </div>
                );
              })}
          </div>
        </>
      )}
      {state !== STATES.facList && (
        <div
          className="sf"
          onClick={() => {
            setState(STATES.moreFac);
          }}
        >
          <ShopsWithFilter
            mall={mall}
            onClick={(e) => {
              setState(STATES.init);
              onClick(e);
            }}
            wingHeight="calc(100vh - 310px)"
          ></ShopsWithFilter>
        </div>
      )}
    </>
  );
};
export default DefaultPopup;