3fe5bb1733
This is the first step toward clearing out the redundant metadata from the coursewareMetadata and getting it from a common source - the courseHomeMetadata. remove username from coursewareMetadata Remove courseAccess from coursewareMetadata. Fix all unit tests Modify classes that use metadataModel to use courseHomeMetadata for common data. metadataModel still exists as a mechanism to distinguish if a component is under courseware or courseHome, and it will be renamed or removed in a later refactor.
26 lines
1.3 KiB
JavaScript
26 lines
1.3 KiB
JavaScript
/* eslint-disable import/prefer-default-export */
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import { useSelector } from 'react-redux';
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import { useModel } from '../../../../generic/model-store';
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import { sequenceIdsSelector } from '../../../data';
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export function useSequenceNavigationMetadata(currentSequenceId, currentUnitId) {
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const sequenceIds = useSelector(sequenceIdsSelector);
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const sequence = useModel('sequences', currentSequenceId);
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const courseStatus = useSelector(state => state.courseware.courseStatus);
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const sequenceStatus = useSelector(state => state.courseware.sequenceStatus);
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// If we don't know the sequence and unit yet, then assume no.
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if (courseStatus !== 'loaded' || sequenceStatus !== 'loaded' || !currentSequenceId || !currentUnitId) {
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return { isFirstUnit: false, isLastUnit: false };
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}
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const isFirstSequence = sequenceIds.indexOf(currentSequenceId) === 0;
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const isFirstUnitInSequence = sequence.unitIds.indexOf(currentUnitId) === 0;
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const isFirstUnit = isFirstSequence && isFirstUnitInSequence;
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const isLastSequence = sequenceIds.indexOf(currentSequenceId) === sequenceIds.length - 1;
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const isLastUnitInSequence = sequence.unitIds.indexOf(currentUnitId) === sequence.unitIds.length - 1;
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const isLastUnit = isLastSequence && isLastUnitInSequence;
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return { isFirstUnit, isLastUnit };
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}
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