Edit lock acquisition

internal/topdata/wiki_deploy.go

@@ -197,11 +197,11 @@ func DeployWikiWithOptions(p *project.Project, opts DeployWikiOptions, progress
 			entry.PID = created.PID
 			nextManifest.Pages[plan.Page.PageID] = entry
 		case "update":
-			if err := client.updatePost(plan.Entry.PID, plan.Content, summary); err != nil {
+			if err := client.updatePost(plan.Entry.TID, plan.Entry.PID, plan.Content, summary); err != nil {
 				return result, err
 			}
 		case "archive":
-			if err := client.updatePost(plan.Entry.PID, plan.Content, summary); err != nil {
+			if err := client.updatePost(plan.Entry.TID, plan.Entry.PID, plan.Content, summary); err != nil {
 				return result, err
 			}
 		}
@@ -378,6 +378,10 @@ func planNodeBBDeploy(pages map[string]wikiDeployPage, manifest wikiDeployManife
 		if err != nil {
 			return nil, result, next, err
 		}
+		if entry.TID == 0 && remote.TID != 0 {
+			entry.TID = remote.TID
+			next.Pages[pageID] = entry
+		}
 		remoteHash := computeManagedHash(remote.Content)
 		if manifest.Pages[pageID].Hash != "" && remoteHash != manifest.Pages[pageID].Hash {
 			result.Drifted++
@@ -823,6 +827,10 @@ type nodeBBPost struct {
 	Content string
 }
 
+type nodeBBEditLock struct {
+	Token string
+}
+
 type nodeBBWikiPage struct {
 	TID       int
 	Title     string
@@ -896,14 +904,44 @@ func (c *nodeBBClient) createTopic(cid int, title, content, summary string) (nod
 	return post, nil
 }
 
-func (c *nodeBBClient) updatePost(pid int, content, summary string) error {
+func (c *nodeBBClient) updatePost(tid, pid int, content, summary string) error {
+	if tid == 0 {
+		post, err := c.getPost(pid)
+		if err != nil {
+			return err
+		}
+		tid = post.TID
+	}
+	lock, err := c.acquireEditLock(tid)
+	if err != nil {
+		return err
+	}
 	body := map[string]any{"content": content}
+	if lock.Token != "" {
+		body["wikiEditLockToken"] = lock.Token
+	}
 	if summary != "" {
 		body["_uid_note"] = summary
 	}
 	return c.request("PUT", fmt.Sprintf("/api/v3/posts/%d", pid), body, nil)
 }
 
+func (c *nodeBBClient) acquireEditLock(tid int) (nodeBBEditLock, error) {
+	if tid == 0 {
+		return nodeBBEditLock{}, fmt.Errorf("NodeBB wiki post update requires a topic id for edit locking")
+	}
+	body := map[string]any{"tid": tid}
+	var doc any
+	if err := c.request("PUT", "/api/v3/plugins/westgate-wiki/edit-lock", body, &doc); err != nil {
+		return nodeBBEditLock{}, err
+	}
+	lock := parseNodeBBEditLock(doc)
+	if lock.Token == "" {
+		return nodeBBEditLock{}, fmt.Errorf("NodeBB wiki edit lock response for topic %d did not include token", tid)
+	}
+	return lock, nil
+}
+
 func (c *nodeBBClient) request(method, path string, payload any, out any) error {
 	var body io.Reader
 	if payload != nil {
@@ -973,6 +1011,20 @@ func parseNodeBBPost(doc any) nodeBBPost {
 	}
 }
 
+func parseNodeBBEditLock(doc any) nodeBBEditLock {
+	for {
+		m, ok := doc.(map[string]any)
+		if !ok {
+			return nodeBBEditLock{}
+		}
+		if response, ok := m["response"]; ok {
+			doc = response
+			continue
+		}
+		return nodeBBEditLock{Token: firstString(m, "token")}
+	}
+}
+
 func parseNodeBBWikiPageList(doc any) ([]nodeBBWikiPage, string, bool) {
 	for {
 		m, ok := doc.(map[string]any)