chore(monorepo/server): move server-side source code

apps/server/src/routes/api/export.ts

@@ -0,0 +1,54 @@
+"use strict";
+
+import zipExportService from "../../services/export/zip.js";
+import singleExportService from "../../services/export/single.js";
+import opmlExportService from "../../services/export/opml.js";
+import becca from "../../becca/becca.js";
+import TaskContext from "../../services/task_context.js";
+import log from "../../services/log.js";
+import NotFoundError from "../../errors/not_found_error.js";
+import type { Request, Response } from "express";
+import ValidationError from "../../errors/validation_error.js";
+import { safeExtractMessageAndStackFromError } from "../../services/utils.js";
+
+function exportBranch(req: Request, res: Response) {
+    const { branchId, type, format, version, taskId } = req.params;
+    const branch = becca.getBranch(branchId);
+
+    if (!branch) {
+        const message = `Cannot export branch '${branchId}' since it does not exist.`;
+        log.error(message);
+
+        res.setHeader("Content-Type", "text/plain").status(500).send(message);
+        return;
+    }
+
+    const taskContext = new TaskContext(taskId, "export");
+
+    try {
+        if (type === "subtree" && (format === "html" || format === "markdown")) {
+            zipExportService.exportToZip(taskContext, branch, format, res);
+        } else if (type === "single") {
+            if (format !== "html" && format !== "markdown") {
+                throw new ValidationError("Invalid export type.");
+            }
+            singleExportService.exportSingleNote(taskContext, branch, format, res);
+        } else if (format === "opml") {
+            opmlExportService.exportToOpml(taskContext, branch, version, res);
+        } else {
+            throw new NotFoundError(`Unrecognized export format '${format}'`);
+        }
+    } catch (e: unknown) {
+        const [errMessage, errStack] = safeExtractMessageAndStackFromError(e);
+        const message = `Export failed with following error: '${errMessage}'. More details might be in the logs.`;
+        taskContext.reportError(message);
+
+        log.error(errMessage + errStack);
+
+        res.setHeader("Content-Type", "text/plain").status(500).send(message);
+    }
+}
+
+export default {
+    exportBranch
+};