feat: add the search bar in courts page

web/src/pages/Courts/TopSearch.tsx

@@ -1,26 +1,28 @@
-import React, { useMemo } from "react";
-import styled from "styled-components";
+import React, { useState, useMemo } from "react";
+import styled, { css } from "styled-components";
 
 import { useNavigate } from "react-router-dom";
 
-import { DropdownCascader } from "@kleros/ui-components-library";
+import { Card, DropdownCascader, Searchbar } from "@kleros/ui-components-library";
 
+import { isKlerosUniversity } from "src/consts";
 import { isUndefined } from "utils/index";
 
 import { useCourtTree, rootCourtToItems } from "queries/useCourtTree";
 
 import { responsiveSize } from "styles/responsiveSize";
+import { landscapeStyle } from "styles/landscapeStyle";
 
 import { StyledSkeleton } from "components/StyledSkeleton";
-
 import StakeMaintenanceButtons from "./StakeMaintenanceButton";
-import { isKlerosUniversity } from "src/consts";
 
 const Container = styled.div`
   width: 100%;
   display: flex;
   justify-content: space-between;
   align-items: center;
+  gap: 8px 16px;
+  flex-wrap: wrap;
 `;
 
 const StyledDropdownCascader = styled(DropdownCascader)`
@@ -30,19 +32,98 @@ const StyledDropdownCascader = styled(DropdownCascader)`
   }
 `;
 
+const SearchBarContainer = styled.div`
+  display: flex;
+  flex-wrap: wrap;
+  position: relative;
+  ${landscapeStyle(
+    () => css`
+      flex: 1;
+    `
+  )}
+`;
+
+const StyledSearchbar = styled(Searchbar)`
+  width: 100%;
+  input {
+    font-size: 16px;
+    height: 45px;
+    padding-top: 0px;
+    padding-bottom: 0px;
+  }
+`;
+
+const SearchResultsContainer = styled.div`
+  position: absolute;
+  margin-top: 45px;
+  max-height: 400px;
+  width: 100%;
+  flex-direction: column;
+  border-radius: 4px;
+  overflow-y: auto;
+  z-index: 1;
+  background-color: ${({ theme }) => theme.whiteBackground};
+`;
+
+const StyledCard = styled(Card)`
+  height: auto;
+  width: 100%;
+  padding: 16px;
+  color: ${({ theme }) => theme.primaryText};
+  cursor: pointer;
+`;
+
+function flattenCourts(court) {
+  return court ? [court, ...(court.children || []).flatMap(flattenCourts)] : [];
+}
+
 const TopSearch: React.FC = () => {
   const { data } = useCourtTree();
   const navigate = useNavigate();
   const items = useMemo(() => !isUndefined(data) && [rootCourtToItems(data.court)], [data]);
   const isUniversity = isKlerosUniversity();
+  const [search, setSearch] = useState("");
+  const filteredCourts = useMemo(
+    () =>
+      data?.court ? flattenCourts(data.court).filter((c) => c.name.toLowerCase().includes(search.toLowerCase())) : [],
+    [data, search]
+  );
+
   return (
     <Container>
       {items ? (
-        <StyledDropdownCascader
-          items={items}
-          onSelect={(path: string | number) => navigate(path.toString())}
-          placeholder="Select Court"
-        />
+        <>
+          <StyledDropdownCascader
+            items={items}
+            onSelect={(path) => navigate(path.toString())}
+            placeholder="Select Court"
+          />
+          <SearchBarContainer>
+            <StyledSearchbar
+              dir="auto"
+              type="text"
+              placeholder="Search"
+              value={search}
+              onChange={(e) => setSearch(e.target.value)}
+            />
+            {search && filteredCourts.length > 0 && (
+              <SearchResultsContainer>
+                {filteredCourts.map((court) => (
+                  <StyledCard
+                    hover
+                    key={court.id}
+                    onClick={() => {
+                      navigate(`/courts/${court.id}`);
+                      setSearch("");
+                    }}
+                  >
+                    {court.name}
+                  </StyledCard>
+                ))}
+              </SearchResultsContainer>
+            )}
+          </SearchBarContainer>
+        </>
       ) : (
         <StyledSkeleton width={240} height={42} />
       )}