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gui/src/App.vue

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+<script setup>
+import { ref, onMounted, onBeforeUnmount } from "vue";
+import { getStatus, sendCommand } from "./api.js";
+
+const status = ref({});
+const logs = ref([]);
+const error = ref(null);
+const apiBase = import.meta.env.VITE_BOX_API_URL || "http://10.10.10.23:8000";
+let pollId = null;
+
+async function refresh() {
+  error.value = null;
+  try {
+    status.value = await getStatus();
+  } catch (err) {
+    error.value = err?.message || "Failed to fetch status";
+  }
+}
+
+async function runCommand(command, payload = {}) {
+  error.value = null;
+  logs.value.unshift({
+    at: new Date().toLocaleTimeString(),
+    command,
+    payload,
+  });
+  try {
+    await sendCommand(command, payload);
+    await refresh();
+  } catch (err) {
+    error.value = err?.message || "Failed to send command";
+    logs.value.unshift({
+      at: new Date().toLocaleTimeString(),
+      command: "error",
+      payload: { message: error.value },
+    });
+  }
+}
+
+onMounted(async () => {
+  await refresh();
+  pollId = setInterval(refresh, 1000);
+});
+
+onBeforeUnmount(() => {
+  if (pollId) {
+    clearInterval(pollId);
+    pollId = null;
+  }
+});
+</script>
+
+<template>
+  <h1>Klangkiste – Control Panel</h1>
+
+  <p>API: {{ apiBase }}</p>
+  <p v-if="error">Error: {{ error }}</p>
+  <p v-if="status.playback_state?.last_error">
+    last_error: {{ status.playback_state.last_error }}
+  </p>
+  <pre>{{ status }}</pre>
+  <h2>GUI Log</h2>
+  <pre>{{ logs }}</pre>
+
+  <button @click="runCommand('play_pause')">Play / Pause</button>
+  <button @click="runCommand('next')">Next</button>
+  <button @click="runCommand('prev')">Prev</button>
+  <button @click="runCommand('volume_up')">Vol +</button>
+  <button @click="runCommand('volume_down')">Vol -</button>
+
+  <hr />
+
+  <button @click="runCommand('nfc_on', { uid: 'UID_1' })">
+    NFC UID_1 ON
+  </button>
+  <button @click="runCommand('nfc_off', { uid: 'UID_1' })">
+    NFC UID_1 OFF
+  </button>
+
+  <hr />
+  <button @click="refresh">Refresh Status</button>
+</template>

gui/src/api.js

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+// src/api.js
+
+const API_BASE = import.meta.env.VITE_BOX_API_URL || "http://10.10.10.23:8000";
+
+export async function getStatus() {
+  const response = await fetch(`${API_BASE}/status`);
+  if (!response.ok) {
+    throw new Error(`Status request failed (${response.status})`);
+  }
+  return await response.json();
+}
+
+export async function sendCommand(command, payload = {}) {
+  console.log("GUI -> API", command, payload);
+  const response = await fetch(`${API_BASE}/command`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({ command, payload }),
+  });
+  if (!response.ok) {
+    throw new Error(`Command request failed (${response.status})`);
+  }
+  return await response.json();
+}

gui/src/assets/vue.svg

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+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="37.07" height="36" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 198"><path fill="#41B883" d="M204.8 0H256L128 220.8L0 0h97.92L128 51.2L157.44 0h47.36Z"></path><path fill="#41B883" d="m0 0l128 220.8L256 0h-51.2L128 132.48L50.56 0H0Z"></path><path fill="#35495E" d="M50.56 0L128 133.12L204.8 0h-47.36L128 51.2L97.92 0H50.56Z"></path></svg>

gui/src/components/HelloWorld.vue

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+<script setup>
+import { ref } from 'vue'
+
+defineProps({
+  msg: String,
+})
+
+const count = ref(0)
+</script>
+
+<template>
+  <h1>{{ msg }}</h1>
+
+  <div class="card">
+    <button type="button" @click="count++">count is {{ count }}</button>
+    <p>
+      Edit
+      <code>components/HelloWorld.vue</code> to test HMR
+    </p>
+  </div>
+
+  <p>
+    Check out
+    <a href="https://vuejs.org/guide/quick-start.html#local" target="_blank"
+      >create-vue</a
+    >, the official Vue + Vite starter
+  </p>
+  <p>
+    Learn more about IDE Support for Vue in the
+    <a
+      href="https://vuejs.org/guide/scaling-up/tooling.html#ide-support"
+      target="_blank"
+      >Vue Docs Scaling up Guide</a
+    >.
+  </p>
+  <p class="read-the-docs">Click on the Vite and Vue logos to learn more</p>
+</template>
+
+<style scoped>
+.read-the-docs {
+  color: #888;
+}
+</style>

gui/src/main.js

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+import { createApp } from 'vue'
+import './style.css'
+import App from './App.vue'
+
+createApp(App).mount('#app')

gui/src/style.css

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+:root {
+  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+
+  color-scheme: light dark;
+  color: rgba(255, 255, 255, 0.87);
+  background-color: #242424;
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+a {
+  font-weight: 500;
+  color: #646cff;
+  text-decoration: inherit;
+}
+a:hover {
+  color: #535bf2;
+}
+
+body {
+  margin: 0;
+  display: flex;
+  place-items: center;
+  min-width: 320px;
+  min-height: 100vh;
+}
+
+h1 {
+  font-size: 3.2em;
+  line-height: 1.1;
+}
+
+button {
+  border-radius: 8px;
+  border: 1px solid transparent;
+  padding: 0.6em 1.2em;
+  font-size: 1em;
+  font-weight: 500;
+  font-family: inherit;
+  background-color: #1a1a1a;
+  cursor: pointer;
+  transition: border-color 0.25s;
+}
+button:hover {
+  border-color: #646cff;
+}
+button:focus,
+button:focus-visible {
+  outline: 4px auto -webkit-focus-ring-color;
+}
+
+.card {
+  padding: 2em;
+}
+
+#app {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color: #213547;
+    background-color: #ffffff;
+  }
+  a:hover {
+    color: #747bff;
+  }
+  button {
+    background-color: #f9f9f9;
+  }
+}