Send message function

Cargo.toml

@@ -14,6 +14,7 @@ js-sys = "0.3"
 serde = { version = "1", features = ["derive"] }
 serde-wasm-bindgen = "0.6"
 console_error_panic_hook = "0.1.7"
+serde_json = "1.0.148"
 
 [workspace]
 members = ["src-tauri"]

src-tauri/src/chat.rs

@@ -0,0 +1,64 @@
+use easy_nostr::EasyNostr;
+use tauri::State;
+use tokio::sync::Mutex;
+
+// State-Struktur, die in lib.rs mit .manage() registriert wird
+pub struct NostrState(pub Mutex<Option<EasyNostr>>);
+
+#[tauri::command]
+pub async fn send_nostr_message(
+    content: String,
+    receiver_npub: String,
+    state: State<'_, NostrState>,
+) -> Result<String, String> {
+    let mut guard = state.0.lock().await;
+
+    // Lazy Initialization: Erstelle den Client nur, wenn er noch nicht existiert
+    if guard.is_none() {
+        println!("[NOSTR] Initialisiere neuen Client...");
+        let easy =
+            EasyNostr::new("nsec1rz87pcjnhcl9yfkyq2pn3mlptluvxdgdgw6fyhhg3zmzw2zpwn0sm2q82f")
+                .await
+                .map_err(|e| {
+                    println!("[NOSTR] Fehler bei Key-Initialisierung: {}", e);
+                    e.to_string()
+                })?;
+
+        println!("[NOSTR] Verbinde zu Relays...");
+        easy.add_relays(vec![
+            //"wss://relay.damus.io",
+            //"wss://nos.lol",
+            //"wss://relay.snort.social",
+            "wss://relay.malxte.de",
+        ])
+        .await
+        .map_err(|e| {
+            println!("[NOSTR] Relay-Fehler: {}", e);
+            e.to_string()
+        })?;
+
+        *guard = Some(easy);
+        println!("[NOSTR] Client bereit.");
+
+        // Kleine Pause für den Verbindungsaufbau der Relays
+        tokio::time::sleep(std::time::Duration::from_millis(500)).await;
+    }
+
+    if let Some(easy) = guard.as_ref() {
+        println!("[NOSTR] Sende Private Message an: {}", receiver_npub);
+
+        match easy.send_private_message(&receiver_npub, &content).await {
+            Ok(event_id) => {
+                let id_str = event_id.to_string();
+                println!("[NOSTR] ERFOLG! ID: {}", id_str);
+                Ok(id_str)
+            }
+            Err(e) => {
+                println!("[NOSTR] VERSAND FEHLGESCHLAGEN: {:?}", e);
+                Err(format!("Versand-Fehler: {}", e))
+            }
+        }
+    } else {
+        Err("Client konnte nicht initialisiert werden".to_string())
+    }
+}

src-tauri/src/home.rs

@@ -12,7 +12,7 @@ pub struct LocalPost {
 #[tauri::command]
 pub async fn fetch_nostr_posts() -> Result<Vec<LocalPost>, String> {
     // 1. Verbindung aufbauen
-    let easy = EasyNostr::new("nsec1...")
+    let easy = EasyNostr::new("nsec1fkhszd5sv8yp6g966qdh5kuph25g4nn9pa2k5rwpuglt6rde8u8qwr3r87")
         .await
         .map_err(|e| e.to_string())?;
 

src-tauri/src/lib.rs

@@ -1,10 +1,18 @@
+mod chat;
 mod home;
 
+use tokio::sync::Mutex; // Wichtig für den State
+
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_opener::init())
-        .invoke_handler(tauri::generate_handler![home::fetch_nostr_posts])
+        // DIESE ZEILE HINZUGEFÜGT: Registriert den State für alle Commands
+        .manage(chat::NostrState(Mutex::new(None)))
+        .invoke_handler(tauri::generate_handler![
+            home::fetch_nostr_posts,
+            chat::send_nostr_message
+        ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");
 }

src/pages/chat.rs

@@ -1,10 +1,106 @@
+use serde::Serialize;
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::spawn_local;
+use web_sys::HtmlInputElement;
 use yew::prelude::*;
 
+#[wasm_bindgen]
+extern "C" {
+    #[wasm_bindgen(js_namespace = ["window", "__TAURI__", "core"])]
+    async fn invoke(cmd: &str, args: JsValue) -> JsValue;
+}
+
+// DAS HIER IST DIE WICHTIGE ÄNDERUNG:
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+struct ChatArgs {
+    content: String,
+    receiver_npub: String, // Wird jetzt als "receiverNpub" gesendet
+}
+
 #[function_component(Chat)]
 pub fn chat() -> Html {
+    let messages = use_state(|| vec![]);
+    let input_ref = use_node_ref();
+    let recipient_ref = use_node_ref();
+    let chat_bottom_ref = use_node_ref();
+
+    // Autoscroll
+    {
+        let chat_bottom_ref = chat_bottom_ref.clone();
+        let messages = messages.clone();
+        use_effect_with(messages, move |_| {
+            if let Some(element) = chat_bottom_ref.cast::<web_sys::HtmlElement>() {
+                element.scroll_into_view();
+            }
+            || ()
+        });
+    }
+
+    let on_send = {
+        let messages = messages.clone();
+        let input_ref = input_ref.clone();
+        let recipient_ref = recipient_ref.clone();
+
+        Callback::from(move |e: SubmitEvent| {
+            e.prevent_default();
+            let input = input_ref.cast::<HtmlInputElement>().unwrap();
+            let recipient = recipient_ref.cast::<HtmlInputElement>().unwrap();
+
+            let content = input.value();
+            let receiver_npub = recipient.value();
+
+            if !content.trim().is_empty() && !receiver_npub.trim().is_empty() {
+                // Optimistic UI Update
+                let mut current = (*messages).clone();
+                current.push(content.clone());
+                messages.set(current);
+
+                input.set_value("");
+
+                spawn_local(async move {
+                    let args = serde_wasm_bindgen::to_value(&ChatArgs {
+                        content,
+                        receiver_npub,
+                    })
+                    .unwrap();
+
+                    // Der Aufruf wird jetzt funktionieren, da die Keys matchen
+                    invoke("send_nostr_message", args).await;
+                });
+            }
+        })
+    };
+
     html! {
-        <div>
+        <div class="chat-wrapper">
-            <h1>{"Chat Page"}</h1>
+            <header class="feed-header">
+                <h1 class="feed-title">{"💬 Chat"}</h1>
+            </header>
+
+            <div class="recipient-box">
+                <input
+                    ref={recipient_ref}
+                    type="text"
+                    placeholder="Empfänger npub..."
+                    class="recipient-input"
+                />
+            </div>
+
+            <div class="chat-list">
+                { for (*messages).iter().map(|msg| html! {
+                    <div class="chat-item">
+                        <div class="chat-meta">{"Du • Jetzt"}</div>
+                        <div class="chat-content">{ msg }</div>
+                    </div>
+                }) }
+                <div ref={chat_bottom_ref}></div>
+            </div>
+
+            <form class="chat-input-container" onsubmit={on_send}>
+                <input ref={input_ref} type="text" placeholder="Nachricht..." class="chat-input" />
+                <button type="submit" class="chat-send-btn">{"↑"}</button>
+            </form>
         </div>
     }
 }

styles.css

@@ -1,4 +1,4 @@
-/* --- Basis & Layout --- */
+/* --- Global & Layout --- */
 body {
     background-color: #0f0f13;
     color: #e2e2e7;
@@ -7,119 +7,22 @@ body {
         -apple-system,
         sans-serif;
     margin: 0;
-    padding: 0;
     line-height: 1.5;
     display: flex;
     justify-content: center;
 }
 
+html {
+    scroll-behavior: smooth;
+}
+
 .feed-container {
     width: 100%;
     max-width: 600px;
-    margin: 0 auto;
+    padding: 40px 20px 150px 20px; /* 150px unten Platz für das Dock */
-    /* 150px unten, damit der Content nicht hinter der Navbar verschwindet */
-    padding: 40px 20px 150px 20px;
 }
 
-/* --- Header & Titel --- */
+/* --- Navigation Dock --- */
-.feed-header {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    margin-bottom: 30px;
-}
-
-.feed-title {
-    font-size: 1.8rem;
-    font-weight: 800;
-    letter-spacing: -0.02em;
-    margin: 0;
-}
-
-/* --- Post Karten --- */
-.posts-list {
-    display: flex;
-    flex-direction: column;
-    gap: 16px;
-}
-
-.post-card {
-    background: rgba(255, 255, 255, 0.03);
-    border: 1px solid rgba(255, 255, 255, 0.08);
-    border-radius: 16px;
-    padding: 20px;
-    transition: all 0.2s ease;
-}
-
-.post-card:hover {
-    background: rgba(255, 255, 255, 0.05);
-    border-color: rgba(255, 255, 255, 0.15);
-}
-
-.post-header {
-    display: flex;
-    justify-content: space-between;
-    margin-bottom: 12px;
-    font-size: 0.85rem;
-}
-
-.post-author {
-    color: #4a90e2;
-    font-weight: 700;
-}
-
-.post-date {
-    color: #63636e;
-}
-
-.post-content {
-    word-wrap: break-word;
-    white-space: pre-wrap;
-    font-size: 1.05rem;
-}
-
-/* --- Buttons (Reload) --- */
-.reload-btn {
-    background: rgba(255, 255, 255, 0.05);
-    border: 1px solid rgba(255, 255, 255, 0.1);
-    color: #e2e2e7;
-    font-size: 1.2rem;
-    padding: 8px 12px;
-    border-radius: 12px;
-    cursor: pointer;
-    transition: all 0.2s ease;
-}
-
-.reload-btn:hover {
-    background: rgba(255, 255, 255, 0.1);
-    transform: rotate(15deg) scale(1.1);
-}
-
-.footer-action {
-    display: flex;
-    justify-content: center;
-    padding: 40px 0;
-}
-
-.reload-btn-large {
-    background: rgba(74, 144, 226, 0.1);
-    color: #4a90e2;
-    border: 1px solid rgba(74, 144, 226, 0.3);
-    padding: 14px 28px;
-    border-radius: 16px;
-    font-weight: 600;
-    cursor: pointer;
-    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
-    width: 100%;
-}
-
-.reload-btn-large:hover {
-    background: rgba(74, 144, 226, 0.2);
-    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.2);
-    transform: translateY(-2px);
-}
-
-/* --- Navbar Dock (Fixed) --- */
 .navbar-dock {
     position: fixed;
     bottom: 30px;
@@ -133,7 +36,6 @@ body {
     border: 1px solid rgba(255, 255, 255, 0.1);
     display: flex;
     gap: 30px;
-    align-items: center;
     box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
     z-index: 1000;
 }
@@ -142,24 +44,178 @@ body {
     color: #a0a0b0;
     text-decoration: none;
     font-weight: 600;
-    font-size: 1.2rem;
-    display: flex;
-    flex-direction: column;
-    align-items: center;
     transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
 }
 
 .nav-link:hover {
     color: #ffffff;
-    transform: translateY(-5px) scale(1.1);
+    transform: translateY(-3px);
 }
 
 .nav-link.active {
     color: #4a90e2;
 }
 
+/* --- Content & Cards --- */
+.feed-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 30px;
+}
+
+.post-card {
+    background: rgba(255, 255, 255, 0.03);
+    border: 1px solid rgba(255, 255, 255, 0.08);
+    border-radius: 16px;
+    padding: 20px;
+    margin-bottom: 16px;
+    transition: background 0.2s ease;
+}
+
+.post-card:hover {
+    background: rgba(255, 255, 255, 0.05);
+}
+
+.post-author {
+    color: #4a90e2;
+    font-weight: 700;
+    font-size: 0.85rem;
+}
+
+.post-content {
+    white-space: pre-wrap;
+    word-wrap: break-word;
+    margin-top: 10px;
+}
+
+/* --- Interaction Elements --- */
+.reload-btn,
+.reload-btn-large {
+    cursor: pointer;
+    border: 1px solid rgba(74, 144, 226, 0.3);
+    transition: all 0.2s ease;
+}
+
+.reload-btn {
+    background: rgba(255, 255, 255, 0.05);
+    border-radius: 12px;
+    padding: 8px 12px;
+}
+
+.reload-btn-large {
+    background: rgba(74, 144, 226, 0.1);
+    color: #4a90e2;
+    padding: 14px;
+    border-radius: 16px;
+    width: 100%;
+    font-weight: 600;
+}
+
+.reload-btn-large:hover {
+    background: rgba(74, 144, 226, 0.2);
+    transform: translateY(-2px);
+}
+
 .status-msg {
     text-align: center;
     color: #63636e;
-    margin-top: 60px;
+    margin-top: 40px;
+}
+
+/* --- Chat Layout --- */
+.chat-wrapper {
+    display: flex;
+    flex-direction: column;
+    min-height: 70vh;
+}
+
+.chat-list {
+    display: flex;
+    flex-direction: column;
+    gap: 24px;
+    margin-bottom: 100px;
+}
+
+.chat-item {
+    border-left: 2px solid rgba(74, 144, 226, 0.3);
+    padding-left: 16px;
+    transition: border-color 0.3s ease;
+}
+
+.chat-item:hover {
+    border-left-color: #4a90e2;
+}
+
+.chat-meta {
+    font-size: 0.75rem;
+    color: #63636e;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    margin-bottom: 4px;
+}
+
+.chat-content {
+    font-size: 1.1rem;
+    color: #e2e2e7;
+}
+
+/* --- Floating Input Field --- */
+.chat-input-container {
+    position: fixed;
+    bottom: 110px; /* Platziert über dem Navbar-Dock */
+    left: 50%;
+    transform: translateX(-50%);
+    width: 100%;
+    max-width: 500px;
+    display: flex;
+    gap: 10px;
+    background: rgba(15, 15, 19, 0.8);
+    backdrop-filter: blur(10px);
+    padding: 10px;
+    border-radius: 20px;
+    border: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.chat-input {
+    flex: 1;
+    background: transparent;
+    border: none;
+    color: white;
+    padding: 10px 15px;
+    font-size: 1rem;
+    outline: none;
+}
+
+.chat-send-btn {
+    background: #4a90e2;
+    color: white;
+    border: none;
+    width: 40px;
+    height: 40px;
+    border-radius: 12px;
+    cursor: pointer;
+    font-weight: bold;
+    font-size: 1.2rem;
+    transition: transform 0.2s ease;
+}
+
+.chat-send-btn:hover {
+    transform: scale(1.05);
+    background: #357abd;
+}
+
+.recipient-box {
+    margin-bottom: 20px;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+}
+
+.recipient-input {
+    background: transparent;
+    border: none;
+    color: #4a90e2; /* Blau markiert als Ziel */
+    font-size: 0.9rem;
+    width: 100%;
+    padding: 10px 0;
+    outline: none;
 }