src/components/ChatInput.vue

<script setup lang="ts">
import { ref } from 'vue'

const input = ref<string>('')

const props = defineProps<{
  loading: boolean
  error: string | null
}>()

const emit = defineEmits<{
  (event: 'send', payload: string): void
}>()

function handleSubmit() {
  const trimmed = input.value.trim()
  if (!trimmed || props.loading) return
  emit('send', trimmed)
  input.value = ''
}
</script>

<template>
  <form @submit.prevent="handleSubmit" class="chat-input">
    <input v-model="input" type="text" placeholder="Type your message..." :disabled="loading" />
    <button type="submit" :disabled="loading">Send</button>
  </form>
  <div v-if="error" class="error">{{ error }}</div>
</template>

<style scoped>
.chat-input {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

input {
  flex: 1;
  padding: 0.75rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}

button {
  padding: 0.75rem 1rem;
  font-size: 1rem;
  background-color: #4caf50;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

button:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

button:hover:enabled {
  background-color: #45a049;
}

.error {
  color: red;
  font-size: 0.875rem;
}
</style>