ShopTRAINING/UI/src/views/TrainingView.vue

<template>
  <el-row :gutter="20">
    <!-- 左侧：训练控制 -->
    <el-col :span="8">
      <el-card>
        <template #header>
          <span>启动模型训练</span>
        </template>
        <el-form :model="form" label-width="100px">
          <el-form-item label="产品">
            <el-select
              v-model="form.product_id"
              placeholder="请选择产品"
              filterable
            >
              <el-option
                v-for="item in products"
                :key="item.product_id"
                :label="item.product_name"
                :value="item.product_id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="店铺">
            <el-select
              v-model="form.store_id"
              placeholder="选择店铺（留空为全局模型）"
              clearable
              filterable
            >
              <el-option label="全局模型（聚合所有店铺）" value=""></el-option>
              <el-option
                v-for="store in stores"
                :key="store.store_id"
                :label="store.store_name"
                :value="store.store_id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="模型类型">
            <el-select
              v-model="form.model_type"
              placeholder="请选择模型"
              @change="onModelTypeChange"
            >
              <el-option
                v-for="item in modelTypes"
                :key="item.id"
                :label="item.name"
                :value="item.id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="训练类型">
            <el-radio-group v-model="form.training_type">
              <el-radio label="new">新训练</el-radio>
              <el-radio label="retrain" :disabled="!hasExistingVersions"
                >继续训练</el-radio
              >
            </el-radio-group>
          </el-form-item>
          <el-form-item
            label="基础版本"
            v-if="form.training_type === 'retrain'"
          >
            <el-select v-model="form.base_version" placeholder="选择基础版本">
              <el-option
                v-for="version in existingVersions"
                :key="version"
                :label="version"
                :value="version"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="训练轮次">
            <el-input-number v-model="form.epochs" :min="1" :max="1000" />
          </el-form-item>
          <el-form-item>
            <el-button
              type="primary"
              @click="startTraining"
              :loading="trainingLoading"
              >启动训练</el-button
            >
          </el-form-item>
        </el-form>
      </el-card>

      <!-- 增强的实时训练状态 -->
      <EnhancedTrainingProgress
        v-if="currentTraining"
        :training-data="currentTraining.detailed_progress || currentTraining"
        style="margin-top: 20px"
      />

      <!-- 后备的简单训练状态卡片 -->
      <el-card
        v-if="currentTraining && !currentTraining.detailed_progress"
        style="margin-top: 20px"
        class="training-progress-container"
      >
        <template #header>
          <span>训练状态</span>
        </template>
        <div>
          <p><strong>任务ID:</strong> {{ currentTraining.task_id }}</p>
          <p><strong>产品:</strong> {{ currentTraining.product_id }}</p>
          <p><strong>店铺:</strong> {{ currentTraining.store_id || '全局模型' }}</p>
          <p><strong>模型:</strong> {{ currentTraining.model_type }}</p>
          <p><strong>版本:</strong> {{ currentTraining.version }}</p>
          <p>
            <strong>状态:</strong>
            <el-tag :type="statusTag(currentTraining.status)">
              {{ statusText(currentTraining.status) }}
            </el-tag>
          </p>
          <el-progress
            v-if="currentTraining.status === 'running'"
            :percentage="currentTraining.progress || 0"
            :format="formatProgress"
          />
          <div v-if="currentTraining.message" style="margin-top: 10px">
            <el-alert
              :title="currentTraining.message"
              type="info"
              show-icon
              :closable="false"
              class="training-status-text"
            />
          </div>
        </div>
      </el-card>
    </el-col>

    <!-- 右侧：任务状态 -->
    <el-col :span="16">
      <el-card>
        <template #header>
          <span>训练任务队列</span>
        </template>
        <el-table :data="trainingTasks" stripe>
          <el-table-column
            prop="task_id"
            label="任务ID"
            width="120"
            show-overflow-tooltip
          ></el-table-column>
          <el-table-column
            prop="product_id"
            label="产品ID"
            width="100"
          ></el-table-column>
          <el-table-column
            prop="model_type"
            label="模型类型"
            width="120"
          ></el-table-column>
          <el-table-column
            prop="version"
            label="版本"
            width="80"
          ></el-table-column>
          <el-table-column prop="status" label="状态" width="100">
            <template #default="{ row }">
              <el-tag :type="statusTag(row.status)">{{
                statusText(row.status)
              }}</el-tag>
            </template>
          </el-table-column>
          <el-table-column prop="start_time" label="创建时间">
            <template #default="{ row }">
              {{ formatDateTime(row.start_time) }}
            </template>
          </el-table-column>
          <el-table-column label="详情">
            <template #default="{ row }">
              <el-popover placement="left" trigger="hover" width="400">
                <template #reference>
                  <el-button type="text" size="small">查看</el-button>
                </template>
                <div v-if="row.status === 'completed'">
                  <h4>评估指标</h4>
                  <pre>{{ JSON.stringify(row.metrics, null, 2) }}</pre>
                  <div v-if="row.version">
                    <h4>版本信息</h4>
                    <p><strong>版本:</strong> {{ row.version }}</p>
                    <p><strong>模型路径:</strong> {{ row.model_path }}</p>
                  </div>
                </div>
                <div v-if="row.status === 'failed'">
                  <h4>错误信息</h4>
                  <p>{{ row.error }}</p>
                </div>
                <div
                  v-if="row.status === 'running' || row.status === 'pending'"
                >
                  <p>任务正在进行中...</p>
                  <div v-if="row.progress !== undefined">
                    <el-progress :percentage="row.progress" />
                  </div>
                </div>
              </el-popover>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
    </el-col>
  </el-row>
</template>

<script setup>
import { ref, onMounted, onUnmounted, reactive, watch } from "vue";
import axios from "axios";
import {
  ElMessage,
  ElPopover,
  ElButton,
  ElTag,
  ElProgress,
  ElAlert
} from "element-plus";
import { io } from "socket.io-client";
import EnhancedTrainingProgress from "@/components/EnhancedTrainingProgress.vue";

const products = ref([]);
const stores = ref([]);
const modelTypes = ref([]);
const trainingLoading = ref(false);
const existingVersions = ref([]);
const hasExistingVersions = ref(false);
const currentTraining = ref(null);

const form = reactive({
  product_id: "",
  store_id: "",
  model_type: "",
  epochs: 50,
  training_type: "new",
  base_version: ""
});

const trainingTasks = ref([]);
let pollInterval = null;
let socket = null;

// WebSocket连接
const initWebSocket = () => {
  socket = io("http://localhost:5000/training", {
    transports: ["websocket", "polling"]
  });

  socket.on("connect", () => {
    console.log("WebSocket连接成功");
  });

  socket.on("training_update", (data) => {
    console.log("收到训练更新:", data);

    // 更新当前训练状态
    if (
      currentTraining.value &&
      currentTraining.value.task_id === data.task_id
    ) {
      currentTraining.value = { ...currentTraining.value, ...data };
    }

    // 更新任务列表中的相应任务
    const taskIndex = trainingTasks.value.findIndex(
      (task) => task.task_id === data.task_id
    );
    if (taskIndex !== -1) {
      trainingTasks.value[taskIndex] = {
        ...trainingTasks.value[taskIndex],
        ...data
      };
    }

    // 显示消息通知
    if (data.status === "completed") {
      ElMessage.success(
        `模型 ${data.model_type} 版本 ${data.version} 训练完成！`
      );
      currentTraining.value = null;
    } else if (data.status === "failed") {
      ElMessage.error(`模型训练失败: ${data.error}`);
      currentTraining.value = null;
    }
  });

  // 监听训练进度更新（epoch级别的详细进度）
  socket.on("training_progress", (data) => {
    console.log("收到训练进度更新:", data);
    
    // 更新当前训练状态的进度信息
    if (
      currentTraining.value &&
      currentTraining.value.task_id === data.task_id
    ) {
      currentTraining.value = { 
        ...currentTraining.value, 
        progress: data.progress || 0,
        message: data.message || currentTraining.value.message,
        status: 'running'  // 确保状态为运行中
      };
      
      // 如果包含训练指标，也更新
      if (data.metrics) {
        currentTraining.value.metrics = data.metrics;
      }
    }

    // 更新任务列表中的进度
    const taskIndex = trainingTasks.value.findIndex(
      (task) => task.task_id === data.task_id
    );
    if (taskIndex !== -1) {
      trainingTasks.value[taskIndex] = {
        ...trainingTasks.value[taskIndex],
        progress: data.progress || 0,
        message: data.message || trainingTasks.value[taskIndex].message
      };
    }
  });

  // 专门监听训练完成事件
  socket.on("training_completed", (data) => {
    console.log("收到训练完成事件:", data);
    
    // 确保当前训练状态被正确更新为完成
    if (
      currentTraining.value &&
      currentTraining.value.task_id === data.task_id
    ) {
      currentTraining.value = { 
        ...currentTraining.value, 
        ...data,
        status: "completed",
        progress: 100
      };
      
      // 显示完成通知
      ElMessage.success(
        `模型 ${data.model_type} 训练完成！`
      );
      
      // 2秒后清除当前训练状态
      setTimeout(() => {
        if (currentTraining.value && currentTraining.value.task_id === data.task_id) {
          currentTraining.value = null;
        }
      }, 2000);
    }

    // 更新任务列表
    const taskIndex = trainingTasks.value.findIndex(
      (task) => task.task_id === data.task_id
    );
    if (taskIndex !== -1) {
      trainingTasks.value[taskIndex] = {
        ...trainingTasks.value[taskIndex],
        ...data,
        status: "completed",
        progress: 100
      };
    }
    
    // 刷新任务列表
    fetchTrainingTasks();
  });

  // 监听详细训练进度更新
  socket.on("training_progress_detailed", (data) => {
    console.log("收到详细训练进度:", data);
    
    // 更新当前训练的详细进度数据
    if (
      currentTraining.value &&
      currentTraining.value.task_id === data.training_id
    ) {
      currentTraining.value = { 
        ...currentTraining.value, 
        detailed_progress: data,
        status: 'training' // 确保状态为训练中
      };
    }
  });

  socket.on("disconnect", () => {
    console.log("WebSocket连接断开");
  });
};

const fetchProducts = async () => {
  try {
    const response = await axios.get("/api/products");
    if (response.data.status === "success") {
      products.value = response.data.data;
    }
  } catch (error) {
    ElMessage.error("获取产品列表失败");
    console.error(error);
  }
};

const fetchModelTypes = async () => {
  try {
    const response = await axios.get("/api/model_types");
    if (response.data.status === "success") {
      modelTypes.value = response.data.data;
      if (modelTypes.value.length > 0 && !form.model_type) {
        form.model_type = modelTypes.value[0].id;
      }
    }
  } catch (error) {
    ElMessage.error("获取模型类型列表失败");
    console.error(error);
  }
};

const fetchStores = async () => {
  try {
    const response = await axios.get("/api/stores");
    if (response.data.status === "success") {
      stores.value = response.data.data;
    }
  } catch (error) {
    console.error("获取店铺列表失败:", error);
    // 不显示错误消息，因为店铺是可选的
  }
};

const fetchExistingVersions = async () => {
  if (!form.product_id || !form.model_type) {
    existingVersions.value = [];
    hasExistingVersions.value = false;
    return;
  }

  try {
    const response = await axios.get(
      `/api/models/${form.product_id}/${form.model_type}/versions`
    );
    if (response.data.status === "success") {
      existingVersions.value = response.data.data.versions || [];
      hasExistingVersions.value = existingVersions.value.length > 0;
      if (hasExistingVersions.value && !form.base_version) {
        form.base_version = response.data.data.latest_version;
      }
    }
  } catch (error) {
    existingVersions.value = [];
    hasExistingVersions.value = false;
    console.error("获取现有版本失败:", error);
  }
};

const onModelTypeChange = () => {
  form.training_type = "new";
  form.base_version = "";
  fetchExistingVersions();
};

const fetchTrainingTasks = async () => {
  try {
    const response = await axios.get("/api/training");
    if (response.data.status === "success") {
      trainingTasks.value = response.data.data;
    }
  } catch (error) {
    if (!pollInterval) ElMessage.error("获取训练任务列表失败");
    console.error("获取训练任务列表失败", error);
  }
};

const startTraining = async () => {
  if (!form.product_id || !form.model_type) {
    ElMessage.warning("请选择产品和模型类型");
    return;
  }

  if (form.training_type === "retrain" && !form.base_version) {
    ElMessage.warning("请选择基础版本进行继续训练");
    return;
  }

  trainingLoading.value = true;
  try {
    const endpoint =
      form.training_type === "retrain"
        ? "/api/training/retrain"
        : "/api/training";
    const payload =
      form.training_type === "retrain"
        ? {
            product_id: form.product_id,
            store_id: form.store_id,
            model_type: form.model_type,
            epochs: form.epochs,
            base_version: form.base_version
          }
        : form;

    const response = await axios.post(endpoint, payload);
    if (response.data.task_id) {
      ElMessage.success(`训练任务 ${response.data.task_id} 已启动`);

      // 设置当前训练状态
      currentTraining.value = {
        task_id: response.data.task_id,
        product_id: form.product_id,
        store_id: form.store_id,
        model_type: form.model_type,
        version: response.data.new_version || "v1",
        status: "starting",
        progress: 0,
        message: "正在启动训练..."
      };

      // 加入WebSocket房间
      if (socket) {
        socket.emit("join_training", { task_id: response.data.task_id });
      }

      fetchTrainingTasks();
    } else {
      ElMessage.error(response.data.error || "启动训练失败");
    }
  } catch (error) {
    const errorMsg = error.response?.data?.error || "启动训练请求失败";
    ElMessage.error(errorMsg);
    console.error(error);
  } finally {
    trainingLoading.value = false;
  }
};

const statusTag = (status) => {
  if (status === "completed") return "success";
  if (status === "running") return "primary";
  if (status === "starting") return "primary";
  if (status === "pending") return "warning";
  if (status === "failed") return "danger";
  return "info";
};

const statusText = (status) => {
  const map = {
    pending: "等待中",
    starting: "启动中",
    running: "进行中",
    completed: "已完成",
    failed: "失败"
  };
  return map[status] || "未知";
};

const formatProgress = (percentage) => {
  return `${percentage}%`;
};

const formatDateTime = (isoString) => {
  if (!isoString) return "N/A";
  return new Date(isoString).toLocaleString();
};

// 监听产品和模型类型变化
watch([() => form.product_id, () => form.model_type], () => {
  fetchExistingVersions();
});

onMounted(() => {
  fetchProducts();
  fetchStores();
  fetchModelTypes();
  fetchTrainingTasks();
  initWebSocket();
  pollInterval = setInterval(fetchTrainingTasks, 10000); // 降低轮询频率，因为有WebSocket
});

onUnmounted(() => {
  if (pollInterval) {
    clearInterval(pollInterval);
  }
  if (socket) {
    socket.disconnect();
  }
});
</script>