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* Session Speaker React Query Hooks
*
* Custom hooks for assigning and removing speakers from sessions.
* Speakers are stored in the session_users table (entity SessionUser, exposed in the
* API as SessionSpeaker). speaker_pool owns the workflow state machine only; from the
* CONTACTED → READY transition onward, session_users is the canonical record for
* speaker meta (confirmation, role, presentation title).
*
* On success, both mutations invalidate two query keys:
* - ['event', eventCode] — so session.speakers[] is refreshed in the parent session list
* - ['speakerPool', 'list', eventCode] — so the organizer drawer / kanban refetches
* the pool list. The server-side response derives the speaker's identity from the
* session-overlay (Phase A); without this invalidation the FE keeps showing the
* pre-reassign identity even though the server has the new value.
*/
import { useMutation, useQueryClient } from '@tanstack/react-query';
import { sessionApiClient, type AssignSpeakerRequest } from '@/services/api/sessionApiClient';
import { speakerPoolKeys } from '@/hooks/useSpeakerPool';
/**
* Hook to assign a speaker to a session (ORGANIZER only)
*
* @example
* const assign = useAssignSpeaker();
* assign.mutate({ eventCode: 'BATbern142', sessionSlug: 'cloud-talk', request: { username: 'john.doe', speakerRole: 'PRIMARY_SPEAKER' } });
*/
export function useAssignSpeaker() {
const queryClient = useQueryClient();
return useMutation({
mutationFn: ({
eventCode,
sessionSlug,
request,
}: {
eventCode: string;
sessionSlug: string;
request: AssignSpeakerRequest;
}) => sessionApiClient.assignSpeaker(eventCode, sessionSlug, request),
onSuccess: (_data, variables) => {
queryClient.invalidateQueries({ queryKey: ['event', variables.eventCode] });
queryClient.invalidateQueries({ queryKey: speakerPoolKeys.list(variables.eventCode) });
},
});
}
/**
* Hook to remove a speaker from a session (ORGANIZER only)
*
* @example
* const remove = useRemoveSpeaker();
* remove.mutate({ eventCode: 'BATbern142', sessionSlug: 'cloud-talk', username: 'john.doe' });
*/
export function useRemoveSpeaker() {
const queryClient = useQueryClient();
return useMutation({
mutationFn: ({
eventCode,
sessionSlug,
username,
}: {
eventCode: string;
sessionSlug: string;
username: string;
}) => sessionApiClient.removeSpeaker(eventCode, sessionSlug, username),
onSuccess: (_data, variables) => {
queryClient.invalidateQueries({ queryKey: ['event', variables.eventCode] });
queryClient.invalidateQueries({ queryKey: speakerPoolKeys.list(variables.eventCode) });
},
});
}
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