update frontend

src/api/client.js

@@ -106,3 +106,26 @@ export async function createPost(payload, token) {
 
   return res.json().catch(() => ({}));
 }
+
+/**
+ * Crée un nouvel utilisateur (backend doit exposer POST /api/register)
+ * payload: { username, email, password }
+ */
+export async function registerUser(payload) {
+  const res = await fetch(`${API_BASE}/register`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+    },
+    credentials: "include",
+    body: JSON.stringify(payload),
+  });
+
+  if (!res.ok) {
+    const text = await res.text().catch(() => "");
+    console.error("registerUser failed", res.status, text);
+    throw new Error(text || "Failed to register user");
+  }
+
+  return res.json().catch(() => ({}));
+}

src/auth/AuthContext.jsx

@@ -157,4 +157,3 @@ export function useAuth() {
   }
   return ctx;
 }
-// modif 1 

src/components/Layout/TopBar.jsx

@@ -1,5 +1,6 @@
 import React, { useState } from "react";
 import { useAuth } from "../../auth/AuthContext";
+import { registerUser } from "../../api/client";
 
 const THEME_LABELS = {
   dark: "Dark",
@@ -17,18 +18,52 @@ export default function TopBar({ theme = "dark", onChangeTheme }) {
     lastError,
   } = useAuth();
 
+  const [mode, setMode] = useState("login"); // "login" | "register"
+
+  // login form
   const [user, setUser] = useState("");
   const [pass, setPass] = useState("");
 
+  // signup form
+  const [regUser, setRegUser] = useState("");
+  const [regEmail, setRegEmail] = useState("");
+  const [regPass, setRegPass] = useState("");
+  const [signupError, setSignupError] = useState("");
+  const [signupLoading, setSignupLoading] = useState(false);
+
   let authLabel = "AUTH: anon";
   if (loading) authLabel = "AUTH: loading…";
   else if (authenticated) authLabel = `AUTH: user=${username || "?"}`;
 
-  const handleSubmit = (e) => {
+  const handleLoginSubmit = (e) => {
     e.preventDefault();
     login(user.trim(), pass);
   };
 
+  const handleRegisterSubmit = async (e) => {
+    e.preventDefault();
+    setSignupError("");
+    if (!regUser.trim() || !regEmail.trim() || !regPass) {
+      setSignupError("All fields required.");
+      return;
+    }
+    try {
+      setSignupLoading(true);
+      await registerUser({
+        username: regUser.trim(),
+        email: regEmail.trim(),
+        password: regPass,
+      });
+      // auto login après création
+      login(regUser.trim(), regPass);
+    } catch (err) {
+      console.error(err);
+      setSignupError(err.message || "Register error.");
+    } finally {
+      setSignupLoading(false);
+    }
+  };
+
   return (
     <header className="topbar">
       <div className="logo-circle">SW</div>
@@ -43,6 +78,11 @@ export default function TopBar({ theme = "dark", onChangeTheme }) {
               ({lastError})
             </span>
           )}
+          {signupError && (
+            <span style={{ color: "#f97373", marginLeft: "0.3rem" }}>
+              ({signupError})
+            </span>
+          )}
         </div>
       </div>
 
@@ -71,8 +111,59 @@ export default function TopBar({ theme = "dark", onChangeTheme }) {
             </button>
           </div>
         ) : (
+          <div
+            style={{
+              display: "flex",
+              flexDirection: "column",
+              alignItems: "flex-end",
+              gap: "0.25rem",
+              minWidth: "230px",
+            }}
+          >
+            <div
+              style={{
+                display: "flex",
+                gap: "0.25rem",
+                fontSize: "0.65rem",
+              }}
+            >
+              <button
+                type="button"
+                onClick={() => setMode("login")}
+                style={{
+                  padding: "0.15rem 0.45rem",
+                  borderRadius: 999,
+                  border: "1px solid #4b5563",
+                  background:
+                    mode === "login" ? "#1e293b" : "transparent",
+                  color: "#e5e7eb",
+                  cursor: "pointer",
+                  fontSize: "0.65rem",
+                }}
+              >
+                Login
+              </button>
+              <button
+                type="button"
+                onClick={() => setMode("register")}
+                style={{
+                  padding: "0.15rem 0.45rem",
+                  borderRadius: 999,
+                  border: "1px solid #4b5563",
+                  background:
+                    mode === "register" ? "#1e293b" : "transparent",
+                  color: "#e5e7eb",
+                  cursor: "pointer",
+                  fontSize: "0.65rem",
+                }}
+              >
+                Sign up
+              </button>
+            </div>
+
+            {mode === "login" ? (
               <form
-            onSubmit={handleSubmit}
+                onSubmit={handleLoginSubmit}
                 style={{
                   display: "flex",
                   alignItems: "center",
@@ -116,9 +207,73 @@ export default function TopBar({ theme = "dark", onChangeTheme }) {
                   {loading ? "..." : "Login"}
                 </button>
               </form>
+            ) : (
+              <form
+                onSubmit={handleRegisterSubmit}
+                style={{
+                  display: "flex",
+                  alignItems: "center",
+                  gap: "0.25rem",
+                }}
+              >
+                <input
+                  type="text"
+                  placeholder="user"
+                  value={regUser}
+                  onChange={(e) => setRegUser(e.target.value)}
+                  style={{
+                    fontSize: "0.7rem",
+                    padding: "0.15rem 0.4rem",
+                    borderRadius: 999,
+                    border: "1px solid #4b5563",
+                    background: "#020617",
+                    color: "#e5e7eb",
+                    minWidth: "70px",
+                  }}
+                />
+                <input
+                  type="email"
+                  placeholder="email"
+                  value={regEmail}
+                  onChange={(e) => setRegEmail(e.target.value)}
+                  style={{
+                    fontSize: "0.7rem",
+                    padding: "0.15rem 0.4rem",
+                    borderRadius: 999,
+                    border: "1px solid #4b5563",
+                    background: "#020617",
+                    color: "#e5e7eb",
+                    minWidth: "90px",
+                  }}
+                />
+                <input
+                  type="password"
+                  placeholder="pass"
+                  value={regPass}
+                  onChange={(e) => setRegPass(e.target.value)}
+                  style={{
+                    fontSize: "0.7rem",
+                    padding: "0.15rem 0.4rem",
+                    borderRadius: 999,
+                    border: "1px solid #4b5563",
+                    background: "#020617",
+                    color: "#e5e7eb",
+                    minWidth: "70px",
+                  }}
+                />
+                <button
+                  className="btn-primary"
+                  type="submit"
+                  disabled={signupLoading}
+                  style={{ fontSize: "0.7rem" }}
+                >
+                  {signupLoading ? "..." : "Create"}
+                </button>
+              </form>
+            )}
+          </div>
         )}
       </div>
     </header>
   );
 }
-// modif 2

src/components/Map/MapView.jsx

@@ -17,7 +17,7 @@ import PostList from "../Posts/PostList";
 import { useAuth } from "../../auth/AuthContext";
 
 export default function MapView({ theme = "dark" }) {
-  const { authenticated, username } = useAuth();
+  const { authenticated, username, token } = useAuth();
 
   const {
     containerRef,
@@ -179,7 +179,8 @@ export default function MapView({ theme = "dark" }) {
       setIsSaving(true);
 
       // On récupère le post retourné par le backend
-      const newPost = await createPost({
+      const newPost = await createPost(
+        {
           title: draftTitle.trim(),
           snippet: draftBody.trim() || draftTitle.trim(),
           category: draftCategory.toUpperCase(),
@@ -187,9 +188,10 @@ export default function MapView({ theme = "dark" }) {
           lat,
           lon: lng,
           author: authorName,
-      });
-
-      // On l’injecte direct dans le moteur de posts,
+        },
+        token
+      );
+// On l’injecte direct dans le moteur de posts,
       // en plus du broadcast WebSocket
       if (newPost && newPost.id) {
         handleIncomingPost(newPost);