Add avatar image + generateur de pseudo

app/page.tsx

@@ -2,10 +2,16 @@
 
 import { navigate } from './action'
 import { useState, useEffect, useRef } from 'react'
-import { IconPencilMinus } from "@tabler/icons-react"
+import { IconPencilMinus, IconCamera, IconDice6 } from "@tabler/icons-react"
+import { defaultAvatarImage } from './avatarImage'
+import { getUsername } from './usernameGenerate'
+import Webcam from 'react-webcam'
 
 export default function Home() {
   const [name, setName] = useState("") 
+  const [avatar, setAvatar] = useState(defaultAvatarImage)
+  const [showWebcam, setShowWebcam] = useState(false)
+  const webcamRef = useRef()
   const modal = useRef()
   const inputName = useRef()
 
@@ -14,35 +20,113 @@ export default function Home() {
     localStorage.setItem("name", inputName.current.value)
   }
 
+  function setAndStoreAvatar(data){
+    resizeBase64Image(data).then((data) => {
+      localStorage.setItem("avatar", data)
+      setAvatar(data)
+    })
+  }
+
+  function takePictureAvatar() {
+    const imageSrc = webcamRef.current.getScreenshot()
+    setAndStoreAvatar(imageSrc)
+    setShowWebcam(false)
+  }
+
+  function getBase64OfImage(file, cb) {
+    let reader = new FileReader();
+    reader.readAsDataURL(file);
+    reader.onload = function () {
+        cb(reader.result)
+    };
+    reader.onerror = function (error) {
+        console.log('Error: ', error);
+    };
+  }
+
+  function resizeBase64Image(base64Image) {
+    return new Promise((resolve, reject) => {
+      const maxSizeInKB = 500;
+      const maxSizeInBytes = maxSizeInKB * 1024;
+      const img = new Image();
+      img.src = base64Image;
+      img.onload = function () {
+        const canvas = document.createElement("canvas");
+        const ctx = canvas.getContext('2d');
+        const width = img.width;
+        const height = img.height;
+        const aspectRatio = width / height;
+        const newWidth = Math.sqrt(maxSizeInBytes * aspectRatio);
+        const newHeight = Math.sqrt(maxSizeInBytes / aspectRatio);
+        canvas.width = newWidth;
+        canvas.height = newHeight;
+        ctx.drawImage(img, 0, 0, newWidth, newHeight);
+        let quality = 0.8;
+        let dataURL = canvas.toDataURL('image/jpeg', quality);
+        resolve(dataURL);
+      };
+    });
+  }
+
   useEffect(() => {
     let localName = localStorage.getItem("name")
+    let localAvatar = localStorage.getItem("avatar")
     if(localName != null){
       setName(localName)
     } else {
       modal.current.showModal()
     }
+
+    if(localAvatar != null) {
+      setAvatar(localAvatar)
+    }
   }, [])
 
   return (
     <main data-theme="light" className="flex min-h-screen flex-col items-center space-y-16 p-24">
       <dialog ref={modal} className="modal">
-        <div className="modal-box">
-          <label className="form-control w-full max-w-xs">
+        <div className="modal-box flex flex-col space-y-4">
+          <div className="avatar flex flex-col items-center space-y-4">
+            <div className="w-24 rounded">
+              <img src={avatar} />
+            </div>
+            { showWebcam &&
+              <>
+                <Webcam ref={webcamRef} />
+                <button className="btn btn-primary" onClick={takePictureAvatar}><IconCamera /></button>
+              </>
+            }
+            { !showWebcam &&
+              <>
+                <button className="btn btn-primary" onClick={() => {setShowWebcam(true)}}>Use Webcam</button>
+                <input type="file" onChange={(e) => {getBase64OfImage(e.target.files[0], (data) => setAndStoreAvatar(data))}} className="file-input w-full max-w-xs"/>
+              </>
+            }
+          </div>
+          <label className="form-control w-full">
             <div className="label">
               <span className="label-text">What is your name?</span>
             </div>
-            <input type="text" ref={inputName} defaultValue={name} placeholder="Name" className="input input-bordered w-full max-w-xs" />
+            <div className="flex flex-row w-full space-x-4">
+              <input type="text" ref={inputName} defaultValue={name} placeholder="Name" className="input input-bordered w-full" />
+              <button onClick={() => {inputName.current.value = getUsername()}} ><IconDice6 /></button>
+            </div>
           </label>
           <div className="modal-action">
             <form method="dialog">
               {/* if there is a button in form, it will close the modal */}
-              <button onClick={setUsername} className="btn">Close</button>
+              <button onClick={setUsername} className="btn">Save</button>
             </form>
           </div>
         </div>
       </dialog>
       <h1 className="text-3xl">Bazaar</h1>
       <div className="flex flex-col space-y-4 items-center">
+        <div className="avatar">
+          <div className="w-24 rounded">
+            <img src={avatar} />
+          </div>
+        </div>
         <div className="flex flex-row space-x-4">
           <span className="text-xl">{name}</span>
           <button onClick={() => { modal.current.showModal()}}>