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import debounce from 'lodash.debounce';
import { roundNumber } from '@ohif/core/src/utils';
import { SegmentationData } from '../services/SegmentationService/SegmentationService';
import { useSystem } from '@ohif/core';
function mapSegmentationToDisplay(segmentation, customizationService) {
const { label, segments } = segmentation;
// Get the readable text mapping once
const readableTextMap = customizationService.getCustomization('panelSegmentation.readableText');
// Helper function to recursively map cachedStats to readable display text
function mapStatsToDisplay(stats, indent = 0) {
const primary = [];
const indentation = ' '.repeat(indent);
for (const key in stats) {
Iif (Object.prototype.hasOwnProperty.call(stats, key)) {
const value = stats[key];
const readableText = readableTextMap?.[key];
Iif (!readableText) {
continue;
}
if (typeof value === 'object' && value !== null && !Array.isArray(value)) {
// Add empty row before category (except for the first category)
Iif (primary.length > 0) {
primary.push('');
}
// Add category title
primary.push(`${indentation}${readableText}`);
// Recursively handle nested objects
primary.push(...mapStatsToDisplay(value, indent + 1));
} else {
// For non-nested values, don't add empty rows
primary.push(`${indentation}${readableText}: ${roundNumber(value, 2)}`);
}
}
}
return primary;
}
// Get customization for display text mapping
const displayTextMapper = segment => {
const defaultDisplay = {
primary: [],
secondary: [],
};
// If the segment has cachedStats, map it to readable text
if (segment.cachedStats) {
const primary = mapStatsToDisplay(segment.cachedStats);
defaultDisplay.primary = primary;
}
return defaultDisplay;
};
const updatedSegments = {};
Object.entries(segments).forEach(([segmentIndex, segment]) => {
updatedSegments[segmentIndex] = {
...segment,
displayText: displayTextMapper(segment),
};
});
// Map the segments and apply the display text mapper
return {
...segmentation,
label,
segments: updatedSegments,
};
}
/**
* Custom hook that provides segmentation data.
* @param options - The options object.
* @param options.servicesManager - The services manager object.
* @param options.subscribeToDataModified - Whether to subscribe to segmentation data modifications.
* @param options.debounceTime - Debounce time in milliseconds for updates.
* @returns An array of segmentation data.
*/
export function useSegmentations(options?: {
subscribeToDataModified?: boolean;
debounceTime?: number;
}): SegmentationData[] {
const { subscribeToDataModified = false, debounceTime = 0 } = options || {};
const { servicesManager } = useSystem();
const { segmentationService, customizationService } = servicesManager.services;
const [segmentations, setSegmentations] = useState<SegmentationData[]>([]);
useEffect(() => {
const update = () => {
const segmentations = segmentationService.getSegmentations();
Iif (!segmentations?.length) {
setSegmentations([]);
return;
}
const mappedSegmentations = segmentations.map(segmentation =>
mapSegmentationToDisplay(segmentation, customizationService)
);
setSegmentations(mappedSegmentations);
};
const debouncedUpdate =
debounceTime > 0 ? debounce(update, debounceTime, { leading: true, trailing: true }) : update;
update();
const subscriptions = [
segmentationService.subscribe(
segmentationService.EVENTS.SEGMENTATION_MODIFIED,
debouncedUpdate
),
segmentationService.subscribe(
segmentationService.EVENTS.SEGMENTATION_REMOVED,
debouncedUpdate
),
];
Iif (subscribeToDataModified) {
subscriptions.push(
segmentationService.subscribe(
segmentationService.EVENTS.SEGMENTATION_DATA_MODIFIED,
debouncedUpdate
)
);
}
return () => {
subscriptions.forEach(subscription => subscription.unsubscribe());
Iif (debounceTime > 0) {
debouncedUpdate.cancel();
}
};
}, [segmentationService, customizationService, debounceTime, subscribeToDataModified]);
return segmentations;
}
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