feat(flightlab): add participant view with scripted phases, TTS, and session sync

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/pages/flightlab/takeoff.vue

@@ -0,0 +1,288 @@
+<template>
+  <div class="min-h-screen bg-[#070d1a] text-white flex flex-col">
+    <!-- Header Bar -->
+    <header class="shrink-0 border-b border-white/5 bg-[#070d1a]/90 backdrop-blur px-4 py-3">
+      <div class="mx-auto flex max-w-screen-lg items-center justify-between gap-3">
+        <!-- Left: Back + Title -->
+        <div class="flex items-center gap-3">
+          <NuxtLink to="/flightlab" class="text-white/40 transition hover:text-white/80">
+            <v-icon icon="mdi-arrow-left" size="20" />
+          </NuxtLink>
+          <div class="flex items-center gap-2">
+            <v-icon icon="mdi-airplane-takeoff" size="18" class="text-cyan-400/70" />
+            <span class="text-sm font-medium text-white/70">{{ engine.scenario.title }}</span>
+          </div>
+        </div>
+
+        <!-- Center: Progress -->
+        <div class="hidden sm:flex items-center gap-2 flex-1 max-w-xs mx-4">
+          <div class="h-1.5 flex-1 rounded-full bg-white/10 overflow-hidden">
+            <div
+              class="h-full rounded-full bg-gradient-to-r from-cyan-500 to-cyan-300 transition-all duration-700 ease-out"
+              :style="{ width: `${engine.progress.value}%` }"
+            />
+          </div>
+          <span class="text-xs text-white/40 tabular-nums">{{ engine.progress.value }}%</span>
+        </div>
+
+        <!-- Right: Session + Controls -->
+        <div class="flex items-center gap-2">
+          <!-- Session indicator -->
+          <div v-if="sync.isConnected.value" class="flex items-center gap-1.5 rounded-full bg-emerald-500/10 border border-emerald-400/30 px-3 py-1">
+            <div class="h-2 w-2 rounded-full bg-emerald-400 animate-pulse" />
+            <span class="text-xs text-emerald-300">{{ sync.sessionCode.value }}</span>
+          </div>
+
+          <!-- Session input (when not connected) -->
+          <div v-else class="flex items-center gap-1">
+            <input
+              v-model="joinCode"
+              type="text"
+              maxlength="4"
+              placeholder="CODE"
+              class="w-16 rounded-lg border border-white/10 bg-white/5 px-2 py-1 text-center text-xs font-mono uppercase text-white/80 placeholder:text-white/30 focus:border-cyan-400/50 focus:outline-none"
+              @keyup.enter="handleJoin"
+            />
+            <v-btn
+              v-if="joinCode.length === 4"
+              size="x-small"
+              variant="flat"
+              color="primary"
+              class="rounded-lg"
+              @click="handleJoin"
+            >
+              Join
+            </v-btn>
+          </div>
+
+          <!-- Restart -->
+          <v-btn
+            icon
+            size="x-small"
+            variant="text"
+            class="text-white/30 hover:text-white/70"
+            @click="showRestartConfirm = true"
+          >
+            <v-icon icon="mdi-refresh" size="18" />
+          </v-btn>
+        </div>
+      </div>
+
+      <!-- Mobile progress -->
+      <div class="sm:hidden mt-2">
+        <div class="h-1 rounded-full bg-white/10 overflow-hidden">
+          <div
+            class="h-full rounded-full bg-gradient-to-r from-cyan-500 to-cyan-300 transition-all duration-700"
+            :style="{ width: `${engine.progress.value}%` }"
+          />
+        </div>
+      </div>
+    </header>
+
+    <!-- Main Content -->
+    <main class="flex-1 flex flex-col justify-center px-4 py-6 sm:py-10">
+      <div class="mx-auto w-full max-w-screen-sm space-y-6">
+        <!-- Paused overlay -->
+        <div v-if="engine.isPaused.value" class="rounded-2xl border border-amber-400/30 bg-amber-500/10 p-4 text-center">
+          <v-icon icon="mdi-pause-circle" size="24" class="text-amber-300 mb-1" />
+          <p class="text-sm text-amber-200">Pausiert - der Instructor setzt gleich fort</p>
+        </div>
+
+        <!-- ATC Message Area -->
+        <div
+          v-if="currentPhase"
+          class="rounded-3xl border border-white/10 bg-[#0b1328]/90 p-6 sm:p-8 shadow-xl shadow-cyan-500/5"
+        >
+          <!-- Speaking indicator -->
+          <div v-if="audio.isSpeaking.value" class="mb-4 flex items-center gap-2">
+            <div class="flex items-center gap-1">
+              <span class="h-3 w-0.5 animate-pulse rounded-full bg-cyan-400" style="animation-delay: 0ms" />
+              <span class="h-4 w-0.5 animate-pulse rounded-full bg-cyan-400" style="animation-delay: 150ms" />
+              <span class="h-2 w-0.5 animate-pulse rounded-full bg-cyan-400" style="animation-delay: 300ms" />
+              <span class="h-5 w-0.5 animate-pulse rounded-full bg-cyan-400" style="animation-delay: 100ms" />
+              <span class="h-3 w-0.5 animate-pulse rounded-full bg-cyan-400" style="animation-delay: 250ms" />
+            </div>
+            <span class="text-xs text-cyan-300/70">Spricht...</span>
+          </div>
+
+          <!-- ATC text -->
+          <p class="text-lg sm:text-xl leading-relaxed text-white/90 font-light">
+            {{ currentPhase.atcMessage }}
+          </p>
+
+          <!-- Explanation -->
+          <p v-if="currentPhase.explanation" class="mt-4 text-sm text-white/50 leading-relaxed border-t border-white/5 pt-4">
+            <v-icon icon="mdi-information-outline" size="14" class="mr-1 text-cyan-400/50" />
+            {{ currentPhase.explanation }}
+          </p>
+        </div>
+
+        <!-- End screen -->
+        <div v-if="engine.isFinished.value" class="text-center py-4">
+          <div class="inline-flex h-16 w-16 items-center justify-center rounded-full border border-emerald-400/40 bg-emerald-500/10 mb-4">
+            <v-icon icon="mdi-check-circle" size="36" class="text-emerald-300" />
+          </div>
+          <p class="text-lg font-semibold text-emerald-200">Geschafft!</p>
+        </div>
+
+        <!-- Buttons -->
+        <div v-if="currentPhase" class="flex flex-col gap-3">
+          <v-btn
+            v-for="btn in currentPhase.buttons"
+            :key="btn.id"
+            :color="getButtonColor(btn.type)"
+            :variant="btn.type === 'primary' ? 'flat' : 'outlined'"
+            size="large"
+            block
+            class="rounded-xl text-left justify-start min-h-[56px]"
+            :class="{ 'border-white/10': btn.type !== 'primary' }"
+            :disabled="engine.isPaused.value || audio.isSpeaking.value"
+            :prepend-icon="btn.icon"
+            @click="handleButtonPress(btn)"
+          >
+            <span class="text-sm sm:text-base">{{ btn.label }}</span>
+          </v-btn>
+        </div>
+      </div>
+    </main>
+
+    <!-- Restart confirmation dialog -->
+    <v-dialog v-model="showRestartConfirm" max-width="340">
+      <v-card class="rounded-2xl bg-[#0b1328] border border-white/10">
+        <v-card-title class="text-base font-semibold pt-5 px-5">Nochmal von vorne?</v-card-title>
+        <v-card-text class="text-sm text-white/60 px-5">
+          Der aktuelle Fortschritt geht verloren.
+        </v-card-text>
+        <v-card-actions class="px-5 pb-5">
+          <v-spacer />
+          <v-btn variant="text" class="text-white/50" @click="showRestartConfirm = false">Abbrechen</v-btn>
+          <v-btn color="primary" variant="flat" class="rounded-xl" @click="handleRestart">Neustart</v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, watch, onMounted, onBeforeUnmount } from 'vue'
+import { takeoffEddf } from '~/../../shared/data/flightlab/takeoff-eddf'
+import { useFlightLabEngine } from '~/../../shared/composables/flightlab/useFlightLabEngine'
+import { useFlightLabAudio } from '~/../../shared/composables/flightlab/useFlightLabAudio'
+import { useFlightLabSync } from '~/../../shared/composables/flightlab/useFlightLabSync'
+import type { FlightLabButton } from '~/../../shared/data/flightlab/types'
+
+definePageMeta({ layout: false })
+useHead({ title: 'FlightLab - Dein erster Start' })
+
+const engine = useFlightLabEngine(takeoffEddf)
+const audio = useFlightLabAudio()
+const sync = useFlightLabSync()
+
+const joinCode = ref('')
+const showRestartConfirm = ref(false)
+
+const currentPhase = computed(() => engine.currentPhase.value)
+
+// Collect all unique sound IDs for preloading
+const allSoundIds = computed(() => {
+  const ids = new Set<string>()
+  for (const phase of takeoffEddf.phases) {
+    if (phase.sounds) {
+      for (const s of phase.sounds) ids.add(s.id)
+    }
+  }
+  return [...ids]
+})
+
+function getButtonColor(type?: string) {
+  switch (type) {
+    case 'primary': return 'primary'
+    case 'comfort': return 'amber'
+    case 'info': return undefined
+    default: return undefined
+  }
+}
+
+function handleButtonPress(btn: FlightLabButton) {
+  if (engine.isPaused.value || audio.isSpeaking.value) return
+
+  engine.selectOption(btn)
+
+  // Sync with instructor if connected
+  if (sync.isConnected.value) {
+    sync.sendParticipantAction(engine.currentPhaseId.value, btn.id, btn.next)
+  }
+}
+
+async function handleJoin() {
+  if (joinCode.value.length !== 4) return
+  try {
+    await sync.joinSession(joinCode.value)
+  } catch (e) {
+    console.error('[FlightLab] Join failed:', e)
+  }
+}
+
+function handleRestart() {
+  showRestartConfirm.value = false
+  audio.stopAllSounds()
+  engine.restart()
+  if (sync.isConnected.value) {
+    sync.sendParticipantAction('restart', 'restart', 'welcome')
+  }
+}
+
+// Watch phase changes to trigger TTS + sounds
+watch(() => engine.currentPhaseId.value, async (newId, oldId) => {
+  if (!newId || newId === oldId) return
+  const phase = engine.currentPhase.value
+  if (!phase) return
+
+  // Handle sounds for this phase
+  if (phase.sounds && phase.sounds.length > 0) {
+    audio.handlePhaseSounds(phase.sounds)
+  }
+
+  // Speak ATC message
+  if (phase.atcMessage) {
+    await audio.speakAtcMessage(phase.atcMessage, { speed: 0.9, readability: 5 })
+  }
+})
+
+// Listen for instructor commands via WebSocket
+sync.onStateChange((state) => {
+  if (state.currentPhaseId !== engine.currentPhaseId.value) {
+    engine.goToPhase(state.currentPhaseId)
+  }
+  engine.isPaused.value = state.isPaused
+})
+
+sync.onInstructorMessage(async (text, withRadioEffect) => {
+  if (withRadioEffect) {
+    await audio.speakAtcMessage(text, { speed: 0.9, readability: 5 })
+  }
+})
+
+sync.onError((msg) => {
+  console.warn('[FlightLab] WS error:', msg)
+})
+
+onMounted(async () => {
+  // Preload cockpit sounds
+  await audio.preloadSounds(allSoundIds.value)
+
+  // Speak initial welcome
+  const phase = engine.currentPhase.value
+  if (phase?.atcMessage) {
+    // Small delay to let audio context init after user gesture
+    setTimeout(() => {
+      audio.speakAtcMessage(phase.atcMessage, { speed: 0.9, readability: 5 })
+    }, 500)
+  }
+})
+
+onBeforeUnmount(() => {
+  audio.dispose()
+  sync.disconnect()
+})
+</script>