feat: complete the qa/chat interface

src/views/qa/chat/index.vue

@@ -1,9 +1,235 @@
+<template>
+  <div class="qa-chat">
+    <div class="chat-container">
+      <div
+        class="messages"
+        ref="messagesContainer"
+        :style="
+          chatHistory.length === 0
+            ? { backgroundImage: 'url(/chat_background-removebg-preview.png)' }
+            : {}
+        "
+      >
+        <div
+          v-for="(message, index) in chatHistory"
+          :key="index"
+          class="message"
+          :class="{
+            'user-message': message.type === 'user',
+            'system-message': message.type === 'system'
+          }"
+        >
+          <strong>{{ message.type.toUpperCase() }}:</strong>
+          {{ message.content }}
+        </div>
+      </div>
+      <div class="input-container">
+        <button
+          :disabled="modelLoading"
+          :class="{ 'model-button': true, 'model-active': modelActive }"
+          @click="toggleModel"
+        >
+          <span v-if="modelLoading" class="loading-spinner" />
+          <span v-else>{{ modelActive ? "关闭模型" : "创建模型" }}</span>
+        </button>
+        <textarea
+          ref="textareaRef"
+          v-model="userInput"
+          @input="adjustTextareaHeight"
+          @keyup.enter="sendMessage"
+          placeholder="输入问题..."
+        />
+        <div class="button-container">
+          <button @click="sendMessage">上传</button>
+          <div v-if="isLoading" class="loading-spinner" />
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
 <script setup lang="ts">
-defineOptions({
-  name: "QAchat"
-});
+import { ref, nextTick } from "vue";
+import { chat, createModel, terminateModel } from "@/api/qa";
+
+const userInput = ref("");
+const chatHistory = ref([]);
+const messagesContainer = ref(null);
+const textareaRef = ref(null);
+const isLoading = ref(false);
+const modelActive = ref(false);
+const modelLoading = ref(false);
+
+const sendMessage = async () => {
+  if (userInput.value.trim() === "") return;
+
+  chatHistory.value.push({ content: userInput.value, type: "user" });
+
+  isLoading.value = true;
+
+  try {
+    const response = await chat({ prompt: userInput.value });
+    chatHistory.value.push({ content: response.content, type: "system" });
+
+    await nextTick();
+    messagesContainer.value.scrollTop = messagesContainer.value.scrollHeight;
+  } catch (error) {
+    console.error("Error sending message:", error);
+  } finally {
+    isLoading.value = false;
+  }
+
+  userInput.value = "";
+  textareaRef.value.style.height = "auto";
+};
+
+const adjustTextareaHeight = () => {
+  textareaRef.value.style.height = "auto";
+  textareaRef.value.style.height =
+    Math.min(textareaRef.value.scrollHeight, 3 * 24) + "px";
+};
+
+const toggleModel = async () => {
+  modelLoading.value = true;
+
+  try {
+    if (modelActive.value) {
+      await terminateModel();
+      modelActive.value = false;
+    } else {
+      await createModel();
+      modelActive.value = true;
+    }
+  } catch (error) {
+    alert(`操作失败: ${error.message}`);
+  } finally {
+    modelLoading.value = false;
+  }
+};
 </script>
 
-<template>
-  <h1>问答系统</h1>
-</template>
+<style scoped>
+@keyframes spin {
+  0% {
+    transform: rotate(0deg);
+  }
+
+  100% {
+    transform: rotate(360deg);
+  }
+}
+
+.qa-chat {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+
+.chat-container {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  padding-bottom: 60px; /* 调整这个值以适应输入框的高度 */
+}
+
+/* .messages {
+  flex-grow: 1;
+  overflow-y: auto;
+  padding: 10px;
+} */
+
+.messages {
+  flex-grow: 1;
+  height: calc(100vh - 200px); /* 根据实际情况调整 */
+  padding: 10px;
+  overflow-y: auto;
+  background-repeat: no-repeat; /* 防止背景图片重复 */
+  background-position: center; /* 将背景图片居中 */
+  background-size: 36%; /* 将背景图片缩小到原来的50% */
+}
+
+.message {
+  padding: 5px;
+  margin-bottom: 10px;
+  word-wrap: break-word;
+  border-radius: 5px;
+}
+
+.user-message {
+  align-self: flex-end;
+  background-color: #f0f0f0;
+}
+
+.system-message {
+  align-self: flex-start;
+  background-color: #e0e0e0;
+}
+
+.input-container {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  display: flex;
+  justify-content: center;
+  width: 100%;
+  padding: 10px;
+  background-color: white;
+  box-shadow: 0 -2px 5px rgb(0 0 0 / 10%);
+}
+
+textarea {
+  width: 60%;
+  padding: 5px 10px;
+  margin-right: 10px;
+  overflow-y: auto;
+  resize: none;
+  border: 1px solid #ccc;
+  border-radius: 5px;
+}
+
+button {
+  padding: 5px 10px;
+  color: white;
+  cursor: pointer;
+  background-color: #007bff;
+  border: none;
+  border-radius: 5px;
+}
+
+button:hover {
+  background-color: #0056b3;
+}
+
+.button-container {
+  display: flex;
+  align-items: center;
+}
+
+.loading-spinner {
+  display: inline-block;
+  width: 20px;
+  height: 20px;
+  margin-right: 5px;
+  border: 2px solid #f3f3f3; /* Light grey */
+  border-top: 2px solid #3498db; /* Blue */
+  border-radius: 50%;
+  animation: spin 2s linear infinite;
+}
+
+.model-button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 5px 10px;
+  margin-right: 10px;
+  color: white;
+  cursor: pointer;
+  background-color: #ccc;
+  border: none;
+  border-radius: 5px;
+}
+
+.model-active {
+  background-color: #007bff;
+}
+</style>