92 lines
3.1 KiB
TypeScript
92 lines
3.1 KiB
TypeScript
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import { useMutation, useQueryClient } from '@tanstack/react-query';
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import { useNostrPublish } from '@/hooks/useNostrPublish';
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import { NKinds, type NostrEvent } from '@nostrify/nostrify';
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interface PostCommentParams {
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root: NostrEvent | URL; // The root event to comment on
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reply?: NostrEvent | URL; // Optional reply to another comment
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content: string;
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}
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/** Post a NIP-22 (kind 1111) comment on an event. */
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export function usePostComment() {
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const { mutateAsync: publishEvent } = useNostrPublish();
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const queryClient = useQueryClient();
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return useMutation({
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mutationFn: async ({ root, reply, content }: PostCommentParams) => {
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const tags: string[][] = [];
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// d-tag identifiers
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const dRoot = root instanceof URL ? '' : root.tags.find(([name]) => name === 'd')?.[1] ?? '';
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const dReply = reply instanceof URL ? '' : reply?.tags.find(([name]) => name === 'd')?.[1] ?? '';
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// Root event tags
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if (root instanceof URL) {
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tags.push(['I', root.toString()]);
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} else if (NKinds.addressable(root.kind)) {
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tags.push(['A', `${root.kind}:${root.pubkey}:${dRoot}`]);
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} else if (NKinds.replaceable(root.kind)) {
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tags.push(['A', `${root.kind}:${root.pubkey}:`]);
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} else {
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tags.push(['E', root.id]);
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}
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if (root instanceof URL) {
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tags.push(['K', root.hostname]);
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} else {
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tags.push(['K', root.kind.toString()]);
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tags.push(['P', root.pubkey]);
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}
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// Reply event tags
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if (reply) {
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if (reply instanceof URL) {
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tags.push(['i', reply.toString()]);
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} else if (NKinds.addressable(reply.kind)) {
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tags.push(['a', `${reply.kind}:${reply.pubkey}:${dReply}`]);
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} else if (NKinds.replaceable(reply.kind)) {
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tags.push(['a', `${reply.kind}:${reply.pubkey}:`]);
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} else {
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tags.push(['e', reply.id]);
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}
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if (reply instanceof URL) {
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tags.push(['k', reply.hostname]);
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} else {
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tags.push(['k', reply.kind.toString()]);
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tags.push(['p', reply.pubkey]);
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}
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} else {
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// If this is a top-level comment, use the root event's tags
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if (root instanceof URL) {
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tags.push(['i', root.toString()]);
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} else if (NKinds.addressable(root.kind)) {
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tags.push(['a', `${root.kind}:${root.pubkey}:${dRoot}`]);
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} else if (NKinds.replaceable(root.kind)) {
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tags.push(['a', `${root.kind}:${root.pubkey}:`]);
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} else {
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tags.push(['e', root.id]);
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}
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if (root instanceof URL) {
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tags.push(['k', root.hostname]);
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} else {
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tags.push(['k', root.kind.toString()]);
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tags.push(['p', root.pubkey]);
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}
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}
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const event = await publishEvent({
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kind: 1111,
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content,
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tags,
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});
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return event;
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},
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onSuccess: (_, { root }) => {
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// Invalidate and refetch comments
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queryClient.invalidateQueries({
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queryKey: ['comments', root instanceof URL ? root.toString() : root.id]
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});
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},
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});
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}
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