11 files changed, 267 insertions, 0 deletions
diff --git a/frontend/src/App.css b/frontend/src/App.css
new file mode 100644
index 0000000..4f77d97
--- /dev/null
+++ b/frontend/src/App.css
@@ -0,0 +1,100 @@
+.App {
+  text-align: center;
+}
+
+.Logo-container {
+  width: 100%;
+  height: 100%;
+  pointer-events: none;
+}
+
+.App-logo {
+  height: 15vmin;
+  position: absolute;
+  left: 50%;
+  top: 50%;
+  transform: translate(-50%, -50%);
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: Logo-rotate-in 2s cubic-bezier(0.755, 0.05, 0.855, 0.06) forwards;
+  }
+  .App-main {
+    opacity: 0;
+    animation: App-fade-in 0.65s ease-in 1.8s forwards;
+  }
+}
+
+.App-bg {
+  background-color: #282c34;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+}
+
+.App-main {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.Grid {
+  background: #5262816f;
+  border-radius: 20px;
+  width: 80vmin;
+  height: 80vmin;
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  grid-template-rows: repeat(4, 1fr);
+  gap: 1%;
+}
+
+.Fit-text {
+  font-size: calc(10px + 1vmin);
+  overflow: hidden;
+  text-overflow: clip;
+}
+
+.Grid-square {
+  background: #acc1eb9d;
+  border: none;
+  border-radius: 10px;
+  width: 100%;
+  height: 100%;
+  font-size: 50%;
+  overflow: hidden;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.Selected {
+  background: #d8deea9d;
+}
+
+@keyframes Logo-rotate-in {
+  from {
+    transform: translate(-50%, -50%) rotate(0deg) scale(1);
+    opacity: 1;
+  }
+  to {
+    transform: translate(-50%, -50%) rotate(360deg) scale(5);
+    opacity: 0;
+  }
+}
+
+@keyframes App-fade-in {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
new file mode 100644
index 0000000..f6f5296
--- /dev/null
+++ b/frontend/src/App.tsx
@@ -0,0 +1,64 @@
+import React, { useEffect, useState } from "react";
+import logo from "./kaistevenson.svg";
+import "./App.css";
+
+import { Grid } from "./Grid";
+import { getWords } from "./serverHelper";
+
+export type GameState = {
+  words: { word: string; selected: boolean }[];
+};
+
+const initializeGameState = async (): Promise<GameState> => ({
+  words: (await getWords()).map((word) => ({ word, selected: false })),
+});
+
+const Game = () => {
+  //state
+  const [gameState, setGameState] = useState<GameState | undefined>(undefined);
+
+  //initialize
+  useEffect(() => {
+    if (!gameState) {
+      initializeGameState()
+        .then((state) => setGameState(state))
+        .catch(console.error);
+    }
+  });
+
+  //handlers
+  const selectWordHandler = (idx: number) => {
+    const candidateState = { ...gameState! };
+    if (candidateState.words.filter((word) => word.selected).length === 4) {
+      if (!candidateState.words[idx].selected) {
+        //if we've already selected 4 words and we would select another,
+        //do nothing
+        return;
+      }
+    }
+    //FIXME don't mutate state
+    candidateState.words[idx].selected = !candidateState.words[idx].selected;
+    setGameState(candidateState);
+    console.log(`selected ${idx}`);
+  };
+
+  //display logic
+  return gameState ? (
+    <Grid selectWordHandler={selectWordHandler} words={gameState.words!} />
+  ) : (
+    <h1>Loading...</h1>
+  );
+};
+
+export const App = () => (
+  <div className="App">
+    <div className="App-bg">
+      <div className="Logo-container">
+        <img src={logo} className="App-logo" alt="logo" />
+      </div>
+      <div className="App-main">
+        <Game />
+      </div>
+    </div>
+  </div>
+);
diff --git a/frontend/src/Grid.tsx b/frontend/src/Grid.tsx
new file mode 100644
index 0000000..b35f757
--- /dev/null
+++ b/frontend/src/Grid.tsx
@@ -0,0 +1,36 @@
+import React from "react";
+import { GameState } from "./App";
+
+const Tile = ({
+  word,
+  selectWordHandler,
+}: {
+  selectWordHandler: () => void;
+  word: GameState["words"][number];
+}) => (
+  <button
+    onClick={selectWordHandler}
+    className={`Grid-square ${word.selected ? "Selected" : ""}`}
+    style={{ cursor: "pointer" }}
+  >
+    <h1 className="Fit-text">{word.word.toUpperCase()}</h1>
+  </button>
+);
+
+export const Grid = ({
+  selectWordHandler,
+  words,
+}: {
+  selectWordHandler: (idx: number) => void;
+  words: GameState["words"];
+}) => (
+  <div className="Grid">
+    {new Array(16).fill(undefined).map((_, i) => (
+      <Tile
+        selectWordHandler={() => selectWordHandler(i)}
+        word={words[i]}
+        key={i}
+      />
+    ))}
+  </div>
+);
diff --git a/frontend/src/index.css b/frontend/src/index.css
new file mode 100644
index 0000000..ec2585e
--- /dev/null
+++ b/frontend/src/index.css
@@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}
diff --git a/frontend/src/index.tsx b/frontend/src/index.tsx
new file mode 100644
index 0000000..079f7c6
--- /dev/null
+++ b/frontend/src/index.tsx
@@ -0,0 +1,19 @@
+import React from "react";
+import ReactDOM from "react-dom/client";
+import "./index.css";
+import { App } from "./App";
+import reportWebVitals from "./reportWebVitals";
+
+const root = ReactDOM.createRoot(
+  document.getElementById("root") as HTMLElement
+);
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();
diff --git a/frontend/src/kaistevenson.svg b/frontend/src/kaistevenson.svg
new file mode 100644
index 0000000..d1b244b
--- /dev/null
+++ b/frontend/src/kaistevenson.svg
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="UTF-8"?><svg id="a" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1860.61 1860.61"><defs><style>.b{fill:none;stroke:#000;stroke-linejoin:round;stroke-width:39px;}</style></defs><rect class="b" x="286.27" y="286.27" width="1288.08" height="1288.08" transform="translate(-385.35 930.31) rotate(-45)"/><rect class="b" x="415.16" y="415.16" width="1030.3" height="1030.3" transform="translate(-365.36 1158.77) rotate(-55)"/><rect class="b" x="517.95" y="517.95" width="824.71" height="824.71" transform="translate(-306 1380.29) rotate(-65)"/><rect class="b" x="600.43" y="600.43" width="659.75" height="659.75" transform="translate(-209.08 1588.13) rotate(-75)"/><rect class="b" x="666.45" y="666.45" width="527.72" height="527.72" transform="translate(-77.54 1775.99) rotate(-85)"/><rect class="b" x="719.1" y="719.1" width="422.41" height="422.41" transform="translate(84.62 1938.15) rotate(-95)"/><rect class="b" x="761.95" y="761.95" width="336.71" height="336.71" transform="translate(272.48 2069.7) rotate(-105)"/><rect class="b" x="795.65" y="795.65" width="269.32" height="269.32" transform="translate(480.33 2166.62) rotate(-115)"/><rect class="b" x="822.52" y="822.52" width="215.58" height="215.58" transform="translate(701.85 2225.97) rotate(-125)"/><rect class="b" x="844.08" y="844.08" width="172.46" height="172.46" transform="translate(930.31 2245.96) rotate(-135)"/></svg>
+\ No newline at end of file
diff --git a/frontend/src/logo.svg b/frontend/src/logo.svg
new file mode 100644
index 0000000..9dfc1c0
--- /dev/null
+++ b/frontend/src/logo.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3"><g fill="#61DAFB"><path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/><circle cx="420.9" cy="296.5" r="45.7"/><path d="M520.5 78.1z"/></g></svg>
+\ No newline at end of file
diff --git a/frontend/src/react-app-env.d.ts b/frontend/src/react-app-env.d.ts
new file mode 100644
index 0000000..6431bc5
--- /dev/null
+++ b/frontend/src/react-app-env.d.ts
@@ -0,0 +1 @@
+/// <reference types="react-scripts" />
diff --git a/frontend/src/reportWebVitals.ts b/frontend/src/reportWebVitals.ts
new file mode 100644
index 0000000..49a2a16
--- /dev/null
+++ b/frontend/src/reportWebVitals.ts
@@ -0,0 +1,15 @@
+import { ReportHandler } from 'web-vitals';
+
+const reportWebVitals = (onPerfEntry?: ReportHandler) => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;
diff --git a/frontend/src/serverHelper.ts b/frontend/src/serverHelper.ts
new file mode 100644
index 0000000..8565fd6
--- /dev/null
+++ b/frontend/src/serverHelper.ts
@@ -0,0 +1,12 @@
+import axios from "axios";
+
+const SERVER_URL = "http://localhost:4000";
+
+export const getWords = async (): Promise<[...(string[] & { length: 9 })]> => {
+  const words = (await axios.get(`${SERVER_URL}/random-words`))
+    .data as string[];
+  if (words.length !== 16) {
+    throw new Error(`Got invalid words ${words} from server`);
+  }
+  return words;
+};
diff --git a/frontend/src/setupTests.ts b/frontend/src/setupTests.ts
new file mode 100644
index 0000000..8f2609b
--- /dev/null
+++ b/frontend/src/setupTests.ts
@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom';