feat: add import and export theme configuration (#6071)

#### What type of PR is this?

/kind feature
/area ui
/milestone 2.17.x

#### What this PR does / why we need it:

为主题增加导入及导出配置的功能。

<img width="1666" alt="image" src="https://github.com/halo-dev/halo/assets/31335418/3574b33e-0293-427c-9036-5d82948aa7f2">

#### How to test it?

测试主题导入及导出功能是否正常可用。
测试当前主题下的不同版本导入导出后数据是否正常。
测试在当前主题下使用其他主题导出的配置是否会报错。

#### Which issue(s) this PR fixes:

Fixes #1073 

#### Does this PR introduce a user-facing change?
```release-note
为单个主题配置增加导入与导出的功能。
```

ui/console-src/modules/interface/themes/ThemeDetail.vue

@@ -1,11 +1,6 @@
 <script lang="ts" setup>
-// types
-import type { Ref } from "vue";
-// core libs
-import { inject, ref } from "vue";
-import { useThemeLifeCycle } from "./composables/use-theme";
-
-// components
+import { apiClient } from "@/utils/api-client";
+import type { Theme } from "@halo-dev/api-client";
 import {
   Dialog,
   IconMore,
@@ -19,10 +14,10 @@ import {
   VStatusDot,
   VTag,
 } from "@halo-dev/components";
-import type { Theme } from "@halo-dev/api-client";
-
-import { apiClient } from "@/utils/api-client";
+import type { Ref } from "vue";
+import { inject, ref } from "vue";
 import { useI18n } from "vue-i18n";
+import { useThemeConfigFile, useThemeLifeCycle } from "./composables/use-theme";
 
 const { t } = useI18n();
 
@@ -78,6 +73,9 @@ const handleReloadTheme = async () => {
     },
   });
 };
+
+const { handleExportThemeConfiguration, openSelectImportFileDialog } =
+  useThemeConfigFile(selectedTheme);
 </script>
 
 <template>
@@ -126,6 +124,12 @@ const handleReloadTheme = async () => {
               <VDropdownItem @click="themesModal = true">
                 {{ $t("core.common.buttons.upgrade") }}
               </VDropdownItem>
+              <VDropdownItem @click="handleExportThemeConfiguration">
+                {{ $t("core.theme.operations.export_configuration.button") }}
+              </VDropdownItem>
+              <VDropdownItem @click="openSelectImportFileDialog()">
+                {{ $t("core.theme.operations.import_configuration.button") }}
+              </VDropdownItem>
               <VDropdownDivider />
               <VDropdownItem type="danger" @click="handleReloadTheme">
                 {{ $t("core.theme.operations.reload.button") }}

ui/console-src/modules/interface/themes/composables/use-theme.ts

@@ -1,10 +1,11 @@
+import { apiClient } from "@/utils/api-client";
+import { useThemeStore } from "@console/stores/theme";
+import type { Theme } from "@halo-dev/api-client";
+import { Dialog, Toast } from "@halo-dev/components";
+import { useFileDialog } from "@vueuse/core";
+import { storeToRefs } from "pinia";
 import type { ComputedRef, Ref } from "vue";
 import { computed, ref } from "vue";
-import type { Theme } from "@halo-dev/api-client";
-import { apiClient } from "@/utils/api-client";
-import { Dialog, Toast } from "@halo-dev/components";
-import { useThemeStore } from "@console/stores/theme";
-import { storeToRefs } from "pinia";
 import { useI18n } from "vue-i18n";
 
 interface useThemeLifeCycleReturn {
@@ -138,3 +139,166 @@ export function useThemeCustomTemplates(type: "post" | "page" | "category") {
     templates,
   };
 }
+
+interface ExportData {
+  themeName: string;
+  version: string;
+  settingName: string;
+  configMapName: string;
+  configs: { [key: string]: string };
+}
+
+export function useThemeConfigFile(theme: Ref<Theme | undefined>) {
+  const { t } = useI18n();
+
+  const handleExportThemeConfiguration = async () => {
+    if (!theme.value) {
+      console.error("No selected or activated theme");
+      return;
+    }
+
+    const { data } = await apiClient.theme.fetchThemeConfig({
+      name: theme?.value?.metadata.name as string,
+    });
+    if (!data) {
+      console.error("Failed to fetch theme config");
+      return;
+    }
+
+    const themeName = theme.value.metadata.name;
+    const exportData = {
+      themeName: themeName,
+      version: theme.value.spec.version,
+      settingName: theme.value.spec.settingName,
+      configMapName: theme.value.spec.configMapName,
+      configs: data.data,
+    } as ExportData;
+    const exportStr = JSON.stringify(exportData, null, 2);
+    const blob = new Blob([exportStr], { type: "application/json" });
+    const temporaryExportUrl = URL.createObjectURL(blob);
+    const temporaryLinkTag = document.createElement("a");
+
+    temporaryLinkTag.href = temporaryExportUrl;
+    temporaryLinkTag.download = `export-${themeName}-config-${Date.now().toString()}.json`;
+
+    document.body.appendChild(temporaryLinkTag);
+    temporaryLinkTag.click();
+
+    document.body.removeChild(temporaryLinkTag);
+    URL.revokeObjectURL(temporaryExportUrl);
+  };
+
+  const {
+    open: openSelectImportFileDialog,
+    onChange: handleImportThemeConfiguration,
+  } = useFileDialog({
+    accept: "application/json",
+    multiple: false,
+    directory: false,
+    reset: true,
+  });
+
+  handleImportThemeConfiguration(async (files) => {
+    if (files === null || files.length === 0) {
+      return;
+    }
+    const configText = await files[0].text();
+    const configJson = JSON.parse(configText || "{}");
+    if (!configJson.configs) {
+      return;
+    }
+    if (!configJson.themeName || !configJson.version) {
+      Toast.error(
+        t("core.theme.operations.import_configuration.invalid_format")
+      );
+      return;
+    }
+    if (!theme.value) {
+      console.error("No selected or activated theme");
+      return;
+    }
+    if (configJson.themeName !== theme.value.metadata.name) {
+      Toast.error(
+        t("core.theme.operations.import_configuration.mismatched_theme")
+      );
+      return;
+    }
+
+    if (configJson.version !== theme.value.spec.version) {
+      Dialog.warning({
+        title: t(
+          "core.theme.operations.import_configuration.version_mismatch.title"
+        ),
+        description: t(
+          "core.theme.operations.import_configuration.version_mismatch.description"
+        ),
+        confirmText: t("core.common.buttons.confirm"),
+        cancelText: t("core.common.buttons.cancel"),
+        onConfirm: () => {
+          handleSaveConfigMap(configJson.configs);
+        },
+        onCancel() {
+          return;
+        },
+      });
+      return;
+    }
+    handleSaveConfigMap(configJson.configs);
+  });
+
+  const handleSaveConfigMap = async (importData: Record<string, string>) => {
+    if (!theme.value) {
+      return;
+    }
+    const { data } = await apiClient.theme.fetchThemeConfig({
+      name: theme.value.metadata.name as string,
+    });
+    if (!data || !data.data) {
+      return;
+    }
+    const combinedConfigData = combinedConfigMap(data.data, importData);
+    await apiClient.theme.updateThemeConfig({
+      name: theme.value.metadata.name,
+      configMap: {
+        ...data,
+        data: combinedConfigData,
+      },
+    });
+    Toast.success(t("core.common.toast.save_success"));
+  };
+
+  /**
+   * combined benchmark configuration and import configuration
+   *
+   * benchmark: { a: "{\"a\": 1}", b: "{\"b\": 2}" }
+   * expand: { a: "{\"c\": 3}", b: "{\"d\": 4}" }
+   * => { a: "{\"a\": 1, \"c\": 3}", b: "{\"b\": 2, \"d\": 4}" }
+   *
+   * benchmark: { a: "{\"a\": 1}", b: "{\"b\": 2}", d: "{\"d\": 4}"
+   * expand: { a: "{\"a\": 2}", b: "{\"b\": 3, \"d\": 4}", c: "{\"c\": 5}" }
+   * => { a: "{\"a\": 2}", b: "{\"b\": 3, \"d\": 4}", d: "{\"d\": 4}" }
+   *
+   */
+  const combinedConfigMap = (
+    benchmarkConfigMap: { [key: string]: string },
+    importConfigMap: { [key: string]: string }
+  ): { [key: string]: string } => {
+    const result = benchmarkConfigMap;
+
+    for (const key in result) {
+      const benchmarkValueJson = JSON.parse(benchmarkConfigMap[key] || "{}");
+      const expandValueJson = JSON.parse(importConfigMap[key] || "{}");
+      const combinedValue = {
+        ...benchmarkValueJson,
+        ...expandValueJson,
+      };
+      result[key] = JSON.stringify(combinedValue);
+    }
+    return result;
+  };
+
+  return {
+    handleExportThemeConfiguration,
+    openSelectImportFileDialog,
+  };
+}

ui/src/locales/en.yaml

@@ -721,6 +721,18 @@ core:
         description: >-
           This feature allows you to refresh the cache to view the latest web
           results after modifying template files at runtime.
+      export_configuration:
+        button: Export theme configuration
+      import_configuration:
+        button: Import theme configuration
+        version_mismatch:
+          title: Version mismatch
+          description: >-
+            The imported configuration file version does not match the 
+            current theme version, which may lead to compatibility issues.
+            Do you want to continue importing?
+        invalid_format: Invalid theme configuration file
+        mismatched_theme: Configuration file does not match the selected theme
     list_modal:
       tabs:
         installed: Installed

ui/src/locales/zh-CN.yaml

@@ -691,6 +691,15 @@ core:
         button: 清理模板缓存
         title: 清除模板缓存
         description: 此功能适用于在运行时修改模板文件后，刷新缓存以查看最新网页结果。
+      export_configuration:
+        button: 导出主题配置
+      import_configuration:
+        button: 导入主题配置
+        version_mismatch:
+          title: 版本不匹配
+          description: 导入的配置文件版本与当前主题版本不匹配，这可能会导致兼容性问题。是否继续导入？
+        invalid_format: 无效的主题配置文件
+        mismatched_theme: 配置文件与所选主题不匹配
     list_modal:
       tabs:
         installed: 已安装

ui/src/locales/zh-TW.yaml

@@ -671,6 +671,15 @@ core:
         button: 清除模板快取
         title: 清除模板快取
         description: 此功能適用於在運行時修改模板檔案後，刷新快取以查看最新網頁結果。
+      export_configuration:
+        button: 匯出主題配置
+      import_configuration:
+        button: 匯入主題配置
+        version_mismatch:
+          title: 版本不匹配
+          description: 匯入的配置檔版本與目前主題版本不匹配，這可能會導致相容性問題。是否繼續匯入？
+        invalid_format: 無效的主題配置文件
+        mismatched_theme: 配置文件與所選主題不匹配
     list_modal:
       tabs:
         installed: 已安裝