<template>
  <div class="publish-container">
    <el-card shadow="never">
      <template #header>
        <div class="card-header">
          <span>发布管理</span>
          <el-button type="primary" :icon="Plus" @click="handlePublish">
            新增模块
          </el-button>
        </div>
      </template>

      <el-table
        :data="publishList"
        v-loading="loading"
        stripe
        border
      >
        <el-table-column prop="id" label="ID" width="80" />
        <el-table-column prop="title" label="模块标题" min-width="200" show-overflow-tooltip />
        <el-table-column prop="version" label="版本号" width="120" />
        <el-table-column prop="module_name" label="所属分类" width="150" />
        <el-table-column prop="status" label="状态" width="100">
          <template #default="{ row }">
            <el-tag :type="getStatusType(row.status)">
              {{ getStatusText(row.status) }}
            </el-tag>
          </template>
        </el-table-column>
        <el-table-column prop="author" label="作者" width="120" />
        <el-table-column prop="publish_time" label="发布时间" width="180">
          <template #default="{ row }">
            {{ formatDate(row.publish_time) }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200" fixed="right">
          <template #default="{ row }">
            <el-button
              type="primary"
              link
              size="small"
              :icon="View"
              @click="handleView(row)"
            >
              查看
            </el-button>
            <el-button
              type="danger"
              link
              size="small"
              :icon="Delete"
              @click="handleDelete(row)"
            >
              删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>

      <div v-if="publishList.length === 0 && !loading" class="empty-state">
        <el-empty description="暂无发布记录" />
      </div>
    </el-card>

    <el-dialog
      v-model="publishDialogVisible"
      title="新增模块"
      width="700px"
      :close-on-click-modal="false"
      @close="handlePublishClose"
    >
      <el-form
        ref="formRef"
        :model="formData"
        :rules="formRules"
        label-width="120px"
      >
        <el-form-item label="模块标题" prop="title">
          <el-input
            v-model="formData.title"
            placeholder="请输入模块标题"
            clearable
          />
        </el-form-item>

        <el-form-item label="版本号" prop="version">
          <el-input
            v-model="formData.version"
            placeholder="请输入版本号，如: 1.0.0"
            clearable
          />
        </el-form-item>

        <el-form-item label="所属分类" prop="module_id">
          <el-select
            v-model="formData.module_id"
            placeholder="请选择所属分类"
            clearable
          >
            <el-option
              v-for="module in moduleOptions"
              :key="module.id"
              :label="module.name"
              :value="module.id"
            />
          </el-select>
        </el-form-item>

        <el-form-item label="状态" prop="status">
          <el-radio-group v-model="formData.status">
            <el-radio :value="1">发布</el-radio>
            <el-radio :value="0">草稿</el-radio>
          </el-radio-group>
        </el-form-item>

        <el-form-item label="上传包" prop="packageFile">
          <el-upload
            ref="uploadRef"
            class="upload-demo"
            drag
            :auto-upload="false"
            :limit="1"
            :on-change="handleFileChange"
            :before-upload="beforeUpload"
            accept=".zip"
          >
            <el-icon class="el-icon--upload"><UploadFilled /></el-icon>
            <div class="el-upload__text">
              拖拽文件到此处或<em>点击上传</em>
            </div>
            <template #tip>
              <div class="el-upload__tip">
                只能上传 zip 格式的压缩包，且不超过 100MB
              </div>
            </template>
          </el-upload>
          <div v-if="formData.packageFile" class="file-info">
            <el-icon><Document /></el-icon>
            <span>{{ formData.packageFile.name }}</span>
            <el-button
              type="danger"
              link
              size="small"
              @click="handleRemoveFile"
            >
              删除
            </el-button>
          </div>
        </el-form-item>

        <el-form-item label="模块说明" prop="description">
          <el-input
            v-model="formData.description"
            type="textarea"
            :rows="4"
            placeholder="请输入模块说明"
          />
        </el-form-item>
      </el-form>

      <template #footer>
        <el-button @click="publishDialogVisible = false">取消</el-button>
        <el-button type="primary" :loading="submitLoading" @click="handleSubmit">
          确定
        </el-button>
      </template>
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, onMounted } from "vue";
import { ElMessage, ElMessageBox } from "element-plus";
import { Plus, View, Delete, UploadFilled, Document } from "@element-plus/icons-vue";
import type { FormInstance, FormRules, UploadFile } from "element-plus";

import { getModules, getModuleCategory } from "@/api/moduleCenter";

interface Publish {
  id: number;
  title: string;
  version: string;
  author: string;
  module_name: string;
  status: number;
  publish_time: string;
}

interface ModuleOption {
  id: number;
  name: string;
}

const loading = ref(false);
const publishList = ref<Publish[]>([]);
const publishDialogVisible = ref(false);
const submitLoading = ref(false);

const formRef = ref<FormInstance>();
const uploadRef = ref();

const formData = reactive({
  title: "",
  version: "",
  author: "",
  module_id: null as number | null,
  status: 1,
  description: "",
  packageFile: null as File | null
});

const moduleOptions = ref<ModuleOption[]>([]);

const formRules: FormRules = {
  title: [
    { required: true, message: "请输入模块标题", trigger: "blur" }
  ],
  version: [
    { required: true, message: "请输入版本号", trigger: "blur" },
    { pattern: /^\d+\.\d+\.\d+$/, message: "版本号格式不正确，如: 1.0.0", trigger: "blur" }
  ],
  module_id: [
    { required: true, message: "请选择所属分类", trigger: "change" }
  ],
  status: [
    { required: true, message: "请选择状态", trigger: "change" }
  ]
};

const getStatusText = (status: number) => {
  const map: Record<number, string> = {
    0: "草稿",
    1: "已发布",
    2: "已撤回"
  };
  return map[status] || "未知";
};

const getStatusType = (status: number) => {
  const map: Record<number, any> = {
    0: "info",
    1: "success",
    2: "warning"
  };
  return map[status] || "info";
};

const formatDate = (date: string) => {
  if (!date) return "-";
  const d = new Date(date);
  const year = d.getFullYear();
  const month = String(d.getMonth() + 1).padStart(2, "0");
  const day = String(d.getDate()).padStart(2, "0");
  const hours = String(d.getHours()).padStart(2, "0");
  const minutes = String(d.getMinutes()).padStart(2, "0");
  return `${year}-${month}-${day} ${hours}:${minutes}`;
};

const handlePublish = () => {
  publishDialogVisible.value = true;
  fetchModuleOptions();
};

const handleView = (row: Publish) => {
  ElMessage.info("查看模块详情功能开发中");
};

const handleDelete = (row: Publish) => {
  ElMessageBox.confirm(`确定要删除模块"${row.title}"吗？`, "提示", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
    type: "warning"
  }).then(async () => {
    try {
      // TODO: 调用删除接口
      // await deletePublish(row.id);
      
      ElMessage.success("删除成功");
      handleRefresh();
    } catch (error) {
      console.error("删除失败:", error);
      ElMessage.error("删除失败");
    }
  }).catch(() => {});
};

const handleFileChange = (file: UploadFile) => {
  formData.packageFile = file.raw;
};

const beforeUpload = (file: File) => {
  const isZip = file.type === "application/zip" || file.name.endsWith(".zip");
  const isLt100M = file.size / 1024 / 1024 < 100 * 1024;

  if (!isZip) {
    ElMessage.error("只能上传 zip 格式的文件!");
    return false;
  }
  if (!isLt100M) {
    ElMessage.error("文件大小不能超过 100MB!");
    return false;
  }
  return true;
};

const handleRemoveFile = () => {
  formData.packageFile = null;
  if (uploadRef.value) {
    uploadRef.value.clearFiles();
  }
};

const handlePublishClose = () => {
  formRef.value?.resetFields();
  formData.packageFile = null;
  publishDialogVisible.value = false;
};

const handleSubmit = async () => {
  if (!formRef.value) return;

  await formRef.value.validate(async (valid) => {
    if (valid) {
      if (!formData.packageFile) {
        ElMessage.warning("请上传模块包");
        return;
      }

      submitLoading.value = true;
      try {
        // TODO: 调用模块接口
        const formDataObj = new FormData();
        formDataObj.append("title", formData.title);
        formDataObj.append("version", formData.version);
        formDataObj.append("author", formData.author);
        formDataObj.append("module_id", formData.module_id.toString());
        formDataObj.append("status", formData.status.toString());
        formDataObj.append("description", formData.description);
        formDataObj.append("package", formData.packageFile);
        
        ElMessage.success("发布成功");
        handlePublishClose();
        handleRefresh();
      } catch (error) {
        console.error("发布失败:", error);
        ElMessage.error("发布失败");
      } finally {
        submitLoading.value = false;
      }
    }
  });
};

const handleRefresh = () => {
  fetchPublishList();
};

const fetchPublishList = async () => {
  loading.value = true;
  try {
    const res = await getModules(0);
    if (res.code === 200 && res.data) {
      publishList.value = res.data.list.map((item: any) => ({
        id: item.id,
        title: item.title,
        version: item.version || "-",
        author: item.author || "-",
        module_name: item.cid || "",
        status: item.status,
        publish_time: item.create_time || ""
      }));
    }
  } catch (error) {
    console.error("获取模块列表失败:", error);
    ElMessage.error("获取模块列表失败");
  } finally {
    loading.value = false;
  }
};

const fetchModuleOptions = async () => {
  try {
    const res = await getModuleCategory();
    if (res.code === 200 && res.data) {
      moduleOptions.value = res.data.list.map((item: any) => ({
        id: item.id,
        name: item.title
      }));
    }
  } catch (error) {
    console.error("获取分类列表失败:", error);
  }
};

onMounted(() => {
  fetchPublishList();
});
</script>

<style scoped lang="scss">
.publish-container {
  .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .upload-demo {
    width: 100%;

    :deep(.el-upload) {
      width: 100%;
    }

    :deep(.el-upload-dragger) {
      width: 100%;
      height: 180px;
    }
  }

  .file-info {
    margin-top: 12px;
    padding: 8px 12px;
    background: var(--el-fill-color-light);
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 8px;

    .el-icon {
      font-size: 20px;
      color: var(--el-color-primary);
    }

    span {
      flex: 1;
      font-size: 14px;
      color: var(--el-text-color-regular);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
  }

  .el-upload__tip {
    font-size: 12px;
    color: var(--el-text-color-placeholder);
    margin-top: 8px;
  }

  .empty-state {
    padding: 40px 0;
  }
}
</style>
