add solution

src/App.tsx

@@ -1,73 +1,26 @@
-import React from 'react';
+import React, { useState } from 'react';
 import './App.scss';
 import { peopleFromServer } from './data/people';
+import { Person } from './types/Person';
+import { Autocomplete } from './components/Autocomplete/Autocomplete';
 
 export const App: React.FC = () => {
-  const { name, born, died } = peopleFromServer[0];
+  const [selectedPerson, setSelectedPerson] = useState<Person | null>(null);
 
   return (
     <div className="container">
       <main className="section is-flex is-flex-direction-column">
         <h1 className="title" data-cy="title">
-          {`${name} (${born} - ${died})`}
+          {selectedPerson
+            ? `${selectedPerson.name} (${selectedPerson.born} - ${selectedPerson.died})`
+            : 'No selected person'}
         </h1>
 
-        <div className="dropdown is-active">
-          <div className="dropdown-trigger">
-            <input
-              type="text"
-              placeholder="Enter a part of the name"
-              className="input"
-              data-cy="search-input"
-            />
-          </div>
-
-          <div className="dropdown-menu" role="menu" data-cy="suggestions-list">
-            <div className="dropdown-content">
-              <div className="dropdown-item" data-cy="suggestion-item">
-                <p className="has-text-link">Pieter Haverbeke</p>
-              </div>
-
-              <div className="dropdown-item" data-cy="suggestion-item">
-                <p className="has-text-link">Pieter Bernard Haverbeke</p>
-              </div>
-
-              <div className="dropdown-item" data-cy="suggestion-item">
-                <p className="has-text-link">Pieter Antone Haverbeke</p>
-              </div>
-
-              <div className="dropdown-item" data-cy="suggestion-item">
-                <p className="has-text-danger">Elisabeth Haverbeke</p>
-              </div>
-
-              <div className="dropdown-item" data-cy="suggestion-item">
-                <p className="has-text-link">Pieter de Decker</p>
-              </div>
-
-              <div className="dropdown-item" data-cy="suggestion-item">
-                <p className="has-text-danger">Petronella de Decker</p>
-              </div>
-
-              <div className="dropdown-item" data-cy="suggestion-item">
-                <p className="has-text-danger">Elisabeth Hercke</p>
-              </div>
-            </div>
-          </div>
-        </div>
-
-        <div
-          className="
-            notification
-            is-danger
-            is-light
-            mt-3
-            is-align-self-flex-start
-          "
-          role="alert"
-          data-cy="no-suggestions-message"
-        >
-          <p className="has-text-danger">No matching suggestions</p>
-        </div>
+        <Autocomplete
+          people={peopleFromServer}
+          delay={300}
+          onSelected={setSelectedPerson}
+        />
       </main>
     </div>
   );

src/components/Autocomplete/Autocomplete.tsx

@@ -0,0 +1,124 @@
+import React, { useEffect, useMemo, useState } from 'react';
+import { Person } from '../../types/Person';
+
+type Props = {
+  people: Person[];
+  delay?: number;
+  onSelected: (person: Person | null) => void;
+};
+
+export const Autocomplete: React.FC<Props> = ({
+  people,
+  delay = 300,
+  onSelected,
+}) => {
+  const [query, setQuery] = useState('');
+  const [debouncedQuery, setDebouncedQuery] = useState('');
+  const [isFocused, setIsFocused] = useState(false);
+
+  useEffect(() => {
+    const timer = setTimeout(() => {
+      setDebouncedQuery(query);
+    }, delay);
+
+    return () => {
+      clearTimeout(timer);
+    };
+  }, [query, delay]);
+
+  const normalizedQuery = debouncedQuery.trim().toLowerCase();
+
+  const suggestions = useMemo(() => {
+    if (!isFocused) {
+      return [];
+    }
+
+    if (!normalizedQuery) {
+      return people;
+    }
+
+    return people.filter(person =>
+      person.name.toLowerCase().includes(normalizedQuery),
+    );
+  }, [people, normalizedQuery, isFocused]);
+
+  const showNoSuggestions =
+    isFocused && normalizedQuery.length > 0 && suggestions.length === 0;
+
+  const handleChange = (value: string) => {
+    if (value === query) {
+      return;
+    }
+
+    setQuery(value);
+    onSelected(null);
+  };
+
+  const handleSelect = (person: Person) => {
+    setQuery(person.name);
+    setDebouncedQuery(person.name);
+    onSelected(person);
+    setIsFocused(false);
+  };
+
+  return (
+    <div className={`dropdown ${isFocused ? 'is-active' : ''}`}>
+      <div className="dropdown-trigger">
+        <input
+          type="text"
+          placeholder="Enter a part of the name"
+          className="input"
+          data-cy="search-input"
+          value={query}
+          onChange={event => handleChange(event.target.value)}
+          onFocus={() => {
+            setIsFocused(true);
+            onSelected(null);
+          }}
+          onBlur={() => {
+            setTimeout(() => setIsFocused(false), 100);
+          }}
+        />
+      </div>
+
+      {isFocused && suggestions.length > 0 && (
+        <div className="dropdown-menu" role="menu" data-cy="suggestions-list">
+          <div className="dropdown-content">
+            {suggestions.map(person => (
+              <div
+                key={person.slug}
+                className="dropdown-item"
+                data-cy="suggestion-item"
+                onMouseDown={() => handleSelect(person)}
+              >
+                <p
+                  className={
+                    person.sex === 'm' ? 'has-text-link' : 'has-text-danger'
+                  }
+                >
+                  {person.name}
+                </p>
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {showNoSuggestions && (
+        <div
+          className="
+            notification
+            is-danger
+            is-light
+            mt-3
+            is-align-self-flex-start
+          "
+          role="alert"
+          data-cy="no-suggestions-message"
+        >
+          <p className="has-text-danger">No matching suggestions</p>
+        </div>
+      )}
+    </div>
+  );
+};