body.tsx

import React, { useEffect, MouseEvent, useState } from "react";
import { Outlet, useSearchParams } from "react-router-dom";
import Theme from "./theme";
import Citylist from "../Pages/citylist";
import { getPicure } from "../Pages/pic";
import Pagination from "../Pages/picpagination";

const initSearchParams = { theme: "", city: "" };

export default function Body() {
  let limit = 15;
  const [searchParams, setSearchParams] = useSearchParams(initSearchParams);
  const [page, setPage] = useState(1);
  const offset = (page - 1) * limit;

  let getPics = getPicure();

  useEffect(() => {
    console.log(searchParams.get("theme"), searchParams.get("city"));
    // setSearchParams(searchParams)
  }, []);

  const themeHandleClick = (event: MouseEvent<HTMLButtonElement>) => {
    console.log(`theme id= ${event.currentTarget.id}`);
    setSearchParams({
      ...Object.fromEntries(searchParams),
      theme: event.currentTarget.id,
    });
  };

  const cityHandleClick = (event: MouseEvent<HTMLButtonElement>) => {
    console.log(`city id= ${event.currentTarget.id}`);
    setSearchParams({
      ...Object.fromEntries(searchParams),
      city: event.currentTarget.id,
    });
  };

  let themechange = searchParams.get("theme");
  let citylistchange = searchParams.get("city");

  const Idpics = getPics.filter((p) => {
    return (
      (p.themeid == themechange && p.cityid == citylistchange) ||
      (p.themeid == themechange && citylistchange == "") ||
      (themechange == "" && p.cityid == citylistchange) ||
      (themechange == "" && citylistchange == "")
    );
  });

  return (
    <div className="flex flex-col px-1 py-1">
      <Theme handleClick={themeHandleClick} />
      <div className="flex flex-col md:flex-row py-10 ">
        <Citylist handleClick={cityHandleClick} />
        <div className=" md:mr-10 md:basis-4/5 grid grid-rows-3 grid-cols-5">
          {Idpics.slice(offset, offset + limit).map((pic, index: number) => (
            <div
              className="m-1 shrink-0 bg-gray-200 rounded overflow-hidden shadow-md"
              key={index} 
            >
              <img
                src={pic.url}
                className="w-full h-10 md:h-20 object-center"
              />
              <p className="text-center text-xs">{pic.name}</p>
            </div>
          ))} 
        <Pagination total={Idpics.length} page={page} setPage={setPage} />
        </div>
      </div>
      
      <Outlet />
    </div>
    // Body Page
  );
}