From fcdecf554d0bbad80b96b3c34fb5ba8cefef2144 Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Mon, 8 Jun 2020 06:54:16 -0700
Subject: [PATCH] Empathy: Send prompt suggestions to server and display
 received prompts

The received prompts can come in an initial list as part of the
"game-state" event sent when first connecting, and they can also come
in subsequent "prompt" events when a player submits a category
suggestion. These are all displayed as large buttons.

Clicking a button also sends a vote to the server, but received votes
are not yet displayed in any way.
---
 empathy/empathy.css | 11 +++++-
 empathy/empathy.jsx | 81 ++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 86 insertions(+), 6 deletions(-)

diff --git a/empathy/empathy.css b/empathy/empathy.css
index e8a317e..f3a4c4b 100644
--- a/empathy/empathy.css
+++ b/empathy/empathy.css
@@ -1 +1,10 @@
-/* Nothing to see here yet. */
+.vote-button {
+    width: 100%;
+    background-color: var(--accent-color);
+    color: var(--text-fg-on-accent);
+    text-align: left;
+    border-radius: 25px;
+    font-size: 200%;
+    padding: 1em;
+    margin-top: 0.25em;
+}
diff --git a/empathy/empathy.jsx b/empathy/empathy.jsx
index 1ee8000..1867381 100644
--- a/empathy/empathy.jsx
+++ b/empathy/empathy.jsx
@@ -52,6 +52,20 @@ events.addEventListener("player-update", event => {
     window.game.set_other_player_info(info);
 });
 
+events.addEventListener("game-state", event => {
+  const state = JSON.parse(event.data);
+
+  for (let prompt of state.prompts) {
+    window.game.add_or_update_prompt(prompt);
+  }
+});
+
+events.addEventListener("prompt", event => {
+  const prompt = JSON.parse(event.data);
+
+  window.game.add_or_update_prompt(prompt);
+});
+
 /*********************************************************
  * Game and supporting classes                           *
  *********************************************************/
@@ -140,19 +154,26 @@ class CategoryRequest extends React.Component {
   }
 
   handle_submit(event) {
+    const form = event.currentTarget;
     const category_input = this.category.current;
     const category = category_input.value;
 
     /* Prevent the default page-changing form-submission behavior. */
     event.preventDefault();
 
-    if (! /[0-9]/.test(category)) {
+    const match = category.match(/[0-9]+/);
+    if (match === null) {
       category_input.setCustomValidity("Category must include a number");
-      event.currentTarget.reportValidity();
+      form.reportValidity();
       return;
     }
 
-    console.log("Do something here with category: " + category);
+    fetch_post_json("prompts", {
+      items: parseInt(match[0], 10),
+      prompt: category
+    });
+
+    form.reset();
   }
 
   render() {
@@ -160,8 +181,8 @@ class CategoryRequest extends React.Component {
       <div className="category-request">
         <h2>Submit a Category</h2>
         <p>
-          Suggest a category to play with your friends. Don't forget to
-          include the number of items for each person to submit.
+          Suggest a category to play. Don't forget to include the
+          number of items for each person to submit.
         </p>
 
         <form onSubmit={this.handle_submit} >
@@ -171,6 +192,7 @@ class CategoryRequest extends React.Component {
               id="category"
               placeholder="6 things at the beach"
               required
+              autoComplete="off"
               onChange={this.handle_change}
               ref={this.category}
             />
@@ -188,6 +210,37 @@ class CategoryRequest extends React.Component {
   }
 }
 
+function PromptOptions(props) {
+
+  function handle_click(id) {
+    fetch_post_json(`vote/${id}`);
+  }
+
+  if (props.prompts.length === 0)
+    return null;
+
+  return (
+    <div className="prompt-options">
+      <h2>Vote on Categories</h2>
+      <p>
+        Select any categories below that you'd like to play.
+        You can choose as many as you'd like.
+      </p>
+      {props.prompts.map(p => {
+        return (
+          <button
+            className="vote-button"
+            key={p.id}
+            onClick={() => handle_click(p.id)}
+          >
+            {p.prompt}
+          </button>
+        );
+      })}
+    </div>
+  );
+}
+
 class Game extends React.Component {
   constructor(props) {
     super(props);
@@ -195,6 +248,7 @@ class Game extends React.Component {
       game_info: {},
       player_info: {},
       other_players: [],
+      prompts: []
     };
   }
 
@@ -223,6 +277,19 @@ class Game extends React.Component {
     });
   }
 
+  add_or_update_prompt(prompt) {
+    const prompts_copy = [...this.state.prompts];
+    const idx = prompts_copy.findIndex(p => p.id === prompt.id);
+    if (idx >= 0) {
+      prompts_copy[idx] = prompt;
+    } else {
+      prompts_copy.push(prompt);
+    }
+    this.setState({
+      prompts: prompts_copy
+    });
+  }
+
   render() {
     const state = this.state;
 
@@ -241,6 +308,10 @@ class Game extends React.Component {
       <p key="spacer"></p>,
       <CategoryRequest
         key="category-request"
+      />,
+      <PromptOptions
+        key="prompts"
+        prompts={state.prompts}
       />
     ];
   }
-- 
2.43.0