feat(workflows): implement workflow duplication feature

- Added functionality to duplicate workflows via a new API endpoint, allowing users to create copies of existing workflows with modified names and owners.
- Introduced utility functions for managing workflow filenames and ensuring unique names for duplicates.
- Created a user interface component for duplicating workflows, including validation for existing files and owner changes.
- Enhanced existing workflows to support the new duplication feature, ensuring seamless integration with the current workflow management system.

This update significantly improves user experience by enabling efficient workflow management and organization.

packages/server/src/api/workflows.js

@@ -10,6 +10,11 @@ import {
   authLabel,
   validateWorkflowHttpTriggers,
 } from "../../workflow-http-validate.js";
+import {
+  duplicateWorkflowYaml,
+  ensureWorkflowFilename,
+  suggestCopyFilename,
+} from "../../workflow-duplicate.js";
 
 function triggerSummary(owner, workflow) {
   if (!workflow || typeof workflow !== "object") return [];
@@ -259,6 +264,101 @@ export default function workflowsPluginFactory(registry) {
       return { ok: true };
     });
 
+    fastify.post("/workflows/:owner/:file/duplicate", async (req, reply) => {
+      const { owner, file } = /** @type {{ owner: string, file: string }} */ (
+        req.params
+      );
+      try {
+        fsStore.assertOwner(owner);
+        fsStore.assertWorkflowFile(file);
+      } catch (err) {
+        return reply.code(err.statusCode ?? 400).send({ error: err.message });
+      }
+      const source = fsStore.readWorkflowYaml(owner, file);
+      if (source == null) {
+        return reply.code(404).send({ error: "workflow not found" });
+      }
+
+      const body = /** @type {{ file?: unknown, owner?: unknown }} */ (req.body ?? {});
+      let destOwner = owner;
+      if (body.owner != null && body.owner !== "") {
+        if (typeof body.owner !== "string") {
+          return reply.code(400).send({ error: "owner must be a string" });
+        }
+        try {
+          destOwner = fsStore.assertOwner(body.owner);
+        } catch (err) {
+          return reply.code(err.statusCode ?? 400).send({ error: err.message });
+        }
+      }
+
+      let destFile;
+      try {
+        if (body.file == null || body.file === "") {
+          destFile = suggestCopyFilename(file, fsStore.listOwnerYamlFiles(destOwner));
+        } else if (typeof body.file !== "string") {
+          return reply.code(400).send({ error: "file must be a string" });
+        } else {
+          destFile = ensureWorkflowFilename(body.file);
+        }
+        fsStore.assertWorkflowFile(destFile);
+      } catch (err) {
+        return reply.code(err.statusCode ?? 400).send({ error: err.message });
+      }
+
+      if (destOwner === owner && destFile === file) {
+        return reply.code(400).send({ error: "cannot duplicate onto itself" });
+      }
+      if (fsStore.readWorkflowYaml(destOwner, destFile) != null) {
+        return reply.code(409).send({ error: "workflow already exists" });
+      }
+
+      let content;
+      try {
+        content = duplicateWorkflowYaml(source, {
+          sourceFile: file,
+          destFile,
+          rewriteHttpPaths: destOwner === owner,
+        });
+      } catch (err) {
+        return reply.code(err.statusCode ?? 400).send({
+          error: err instanceof Error ? err.message : String(err),
+        });
+      }
+
+      let parsed;
+      try {
+        parsed = yaml.parse(content);
+      } catch (err) {
+        return reply.code(400).send({
+          error: `invalid yaml: ${err instanceof Error ? err.message : String(err)}`,
+        });
+      }
+      try {
+        compileWorkflowScripts(parsed?.scripts);
+      } catch (err) {
+        return reply.code(400).send({
+          error: err instanceof Error ? err.message : String(err),
+        });
+      }
+      try {
+        await validateWorkflowHttpTriggers(parsed);
+      } catch (err) {
+        return reply.code(err.statusCode ?? 400).send({
+          error: err instanceof Error ? err.message : String(err),
+        });
+      }
+
+      fsStore.writeWorkflowYaml(destOwner, destFile, content);
+      const registered = fsStore.readRegisters(destOwner);
+      if (!registered.includes(destFile)) {
+        registered.push(destFile);
+        fsStore.writeRegisters(destOwner, registered);
+      }
+      registry.reregister();
+      return reply.code(201).send({ owner: destOwner, file: destFile });
+    });
+
     fastify.post("/workflows/:owner/:file/run", async (req, reply) => {
       const { owner, file } = /** @type {{ owner: string, file: string }} */ (
         req.params

packages/server/workflow-duplicate.js

@@ -0,0 +1,111 @@
+import yaml from "yaml";
+
+export function ensureWorkflowFilename(file) {
+  const trimmed = String(file ?? "").trim();
+  if (!trimmed) return "";
+  return /\.ya?ml$/i.test(trimmed) ? trimmed : `${trimmed}.yaml`;
+}
+
+export function workflowFileStem(file) {
+  return String(file).replace(/\.ya?ml$/i, "");
+}
+
+/**
+ * Next unused copy filename: `track.yaml` → `track-copy.yaml`,
+ * `track-copy.yaml` → `track-copy-2.yaml`.
+ * @param {string} file
+ * @param {string[]} existingFiles
+ */
+export function suggestCopyFilename(file, existingFiles = []) {
+  const name = ensureWorkflowFilename(file) || "workflow.yaml";
+  const match = name.match(/^(.*?)(\.ya?ml)$/i);
+  const base = match ? match[1] : name;
+  const ext = match ? match[2] : ".yaml";
+  const existing = new Set(existingFiles);
+
+  const copyMatch = base.match(/^(.*)-copy(?:-(\d+))?$/);
+  const root = copyMatch ? copyMatch[1] : base;
+  const candidate = (i) =>
+    i <= 1 ? `${root}-copy${ext}` : `${root}-copy-${i}${ext}`;
+
+  let n = copyMatch ? Number(copyMatch[2] || 1) + 1 : 1;
+  while (existing.has(candidate(n))) n += 1;
+  return candidate(n);
+}
+
+export function nextCopyName(name) {
+  const trimmed = String(name ?? "").trim();
+  if (!trimmed) return "copy";
+  const match = trimmed.match(/^(.*) \(copy(?: (\d+))?\)$/);
+  if (!match) return `${trimmed} (copy)`;
+  const n = match[2] ? Number(match[2]) + 1 : 2;
+  return `${match[1]} (copy ${n})`;
+}
+
+export function httpPathCopySuffix(sourceFile, destFile) {
+  const src = workflowFileStem(sourceFile);
+  const dest = workflowFileStem(destFile);
+  if (dest.startsWith(`${src}-`) && dest.length > src.length + 1) {
+    return dest.slice(src.length + 1);
+  }
+  if (dest === src) return "copy";
+  return dest || "copy";
+}
+
+function suffixHttpPath(path, suffix) {
+  const trimmed = String(path).replace(/\/+$/, "");
+  const withSlash = trimmed.startsWith("/") ? trimmed : `/${trimmed}`;
+  const safe = String(suffix).replace(/[^A-Za-z0-9._-]+/g, "-").replace(/^-+|-+$/g, "") || "copy";
+  return `${withSlash}-${safe}`;
+}
+
+function rewriteHttpTriggerPaths(doc, suffix) {
+  const triggers = doc.get("triggers");
+  if (!yaml.isSeq(triggers)) return;
+  for (const item of triggers.items) {
+    if (!yaml.isMap(item)) continue;
+    if (String(item.get("type") ?? "").toLowerCase() !== "http") continue;
+    const path = item.get("path");
+    if (typeof path !== "string" || !path.trim()) continue;
+    item.set("path", suffixHttpPath(path, suffix));
+  }
+}
+
+/**
+ * Copy workflow YAML: append " (copy)" to name, disable, optionally rewrite HTTP paths.
+ * Preserves comments via YAML CST.
+ * @param {string} content
+ * @param {{ sourceFile: string, destFile: string, rewriteHttpPaths?: boolean }} opts
+ */
+export function duplicateWorkflowYaml(content, opts) {
+  const sourceFile = opts?.sourceFile ?? "";
+  const destFile = opts?.destFile ?? "";
+  const rewriteHttpPaths = opts?.rewriteHttpPaths !== false;
+
+  const doc = yaml.parseDocument(content);
+  if (doc.errors?.length) {
+    const err = new Error(doc.errors[0]?.message ?? "invalid yaml");
+    err.statusCode = 400;
+    throw err;
+  }
+  const parsed = doc.toJSON();
+  if (parsed == null || typeof parsed !== "object" || Array.isArray(parsed)) {
+    const err = new Error("workflow yaml must be an object");
+    err.statusCode = 400;
+    throw err;
+  }
+
+  const currentName = doc.get("name");
+  if (typeof currentName === "string" && currentName.trim()) {
+    doc.set("name", nextCopyName(currentName));
+  } else {
+    doc.set("name", workflowFileStem(destFile) || "copy");
+  }
+  doc.set("enabled", false);
+
+  if (rewriteHttpPaths) {
+    rewriteHttpTriggerPaths(doc, httpPathCopySuffix(sourceFile, destFile));
+  }
+
+  return String(doc);
+}

packages/server/workflows/default/comic-monkeyuser-to-ntfy.yaml

@@ -2,24 +2,23 @@ name: Comic - monkeyuser to ntfy
 scripts:
   - script: fetch-html.js
     config:
-      url: "https://www.monkeyuser.com/"
-      outputVar: "httpResponse"
-      selector: ".comic img"
+      url: https://www.monkeyuser.com/
+      outputVar: comic
+      selector: .comic img
       jsonata: |
         {"url": "https://www.monkeyuser.com" & [attributes.src][0], "title": [attributes.title][0]}
   - script: jsonata.js
     config:
       expression: |
         {
-          "title": data.httpResponse.title,
-          "message": data.httpResponse.title,
-          "attach": data.httpResponse.url
+          "title": data.comic.title,
+          "message": data.comic.title,
+          "attach": data.comic.url
         }
-  - fetch-binary.js
+  - script: fetch-binary.js
   - script: ntfy.js
     config:
       url: https://ntfy.sh/jerapah-flow
-
 triggers:
   - type: HTTP
     method: POST

packages/server/workflows/default/registers.yaml

@@ -9,3 +9,4 @@ scripts:
   - send-gmail.yaml
   - test-send-gmail.yaml
   - track.yaml
+  - rss-devto-to-ntfy.yaml

packages/server/workflows/default/rss-devto-to-ntfy.yaml

@@ -0,0 +1,27 @@
+name: RSS - selfh.st first item to ntfy (copy)
+scripts:
+  - script: fetch-rss-feed.js
+    config:
+      url: https://selfh.st/rss/
+      outputVar: item
+      jsonata: items[0]
+  - script: fingerprint.js
+    config:
+      key: selfhst-latest
+      jsonata: "data.item.guid ? data.item.guid : data.item.link"
+  - script: jsonata.js
+    config:
+      expression: |
+        {
+          "title": data.item.title,
+          "message": data.item.contentSnippet & "\n" & data.item.link,
+          "attach": data.item.mediaContent.url ? data.item.mediaContent.url : (data.item.mediaContent.$ ? data.item.mediaContent.$.url : undefined)
+        }
+  - script: ntfy.js
+    config:
+      url: https://n.0dev.web.id/system
+triggers:
+  - type: HTTP
+    method: POST
+    path: /selfhst-rss-rss-devto-to-ntfy
+enabled: false

packages/server/workflows/default/rss-selfhst-to-ntfy.yaml

@@ -2,7 +2,7 @@ name: RSS - selfh.st first item to ntfy
 scripts:
   - script: fetch-rss-feed.js
     config:
-      url: "https://selfh.st/rss/"
+      url: https://selfh.st/rss/
       outputVar: item
       jsonata: items[0]
   - script: fingerprint.js
@@ -19,8 +19,7 @@ scripts:
         }
   - script: ntfy.js
     config:
-      url: https://ntfy.sh/jerapah-flow
-
+      url: https://n.0dev.web.id/system
 triggers:
   - type: HTTP
     method: POST