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group filestate updates

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vcoppe
2024-05-15 11:47:42 +02:00
parent 57ebefcb38
commit d93e43e268
1 changed files with 10 additions and 8 deletions
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18
website/src/lib/db.ts
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@@ -110,16 +110,16 @@ function dexieStore<T>(querier: () => T | Promise<T>, initial?: T): Readable<T>
export type GPXFileWithStatistics = { file: GPXFile, statistics: GPXStatistics }; export type GPXFileWithStatistics = { file: GPXFile, statistics: GPXStatistics };
// Wrap Dexie live queries in a Svelte store to avoid triggering the query for every subscriber, also takes care of the conversion to a GPXFile object // Wrap Dexie live queries in a Svelte store to avoid triggering the query for every subscriber, also takes care of the conversion to a GPXFile object
function dexieGPXFileStore(querier: () => GPXFile | undefined | Promise<GPXFile | undefined>): Readable<GPXFileWithStatistics> & { destroy: () => void } { function dexieGPXFileStore(id: string): Readable<GPXFileWithStatistics> & { destroy: () => void } {
let store = writable<GPXFileWithStatistics>(undefined); let store = writable<GPXFileWithStatistics>(undefined);
let query = liveQuery(querier).subscribe(value => { let query = liveQuery(() => db.files.get(id)).subscribe(value => {
if (value !== undefined) { if (value !== undefined) {
let gpx = new GPXFile(value); let gpx = new GPXFile(value);
let statistics = gpx.getStatistics(); let statistics = gpx.getStatistics();
if (!fileState.has(gpx._data.id)) { // Update the map bounds for new files if (!fileState.has(id)) { // Update the map bounds for new files
updateTargetMapBounds(statistics.global.bounds); updateTargetMapBounds(statistics.global.bounds);
} }
fileState.set(gpx._data.id, gpx); fileState.set(id, gpx);
store.set({ store.set({
file: gpx, file: gpx,
statistics statistics
@@ -128,7 +128,10 @@ function dexieGPXFileStore(querier: () => GPXFile | undefined | Promise<GPXFile
}); });
return { return {
subscribe: store.subscribe, subscribe: store.subscribe,
destroy: query.unsubscribe destroy: () => {
fileState.delete(id);
query.unsubscribe();
}
}; };
} }
@@ -183,12 +186,11 @@ liveQuery(() => db.fileids.toArray()).subscribe(dbFileIds => {
if (newFiles.length > 0 || deletedFiles.length > 0) { if (newFiles.length > 0 || deletedFiles.length > 0) {
fileObservers.update($files => { fileObservers.update($files => {
newFiles.forEach(id => { newFiles.forEach(id => {
$files.set(id, dexieGPXFileStore(() => db.files.get(id))); $files.set(id, dexieGPXFileStore(id));
}); });
deletedFiles.forEach(id => { deletedFiles.forEach(id => {
$files.get(id)?.destroy(); $files.get(id)?.destroy();
$files.delete(id); $files.delete(id);
fileState.delete(id);
}); });
return $files; return $files;
}); });
@@ -260,7 +262,7 @@ function applyPatch(patch: Patch[]) {
// Get the file ids of the files that have changed in the patch // Get the file ids of the files that have changed in the patch
function getChangedFileIds(patch: Patch[]): string[] { function getChangedFileIds(patch: Patch[]): string[] {
let changedFileIds = new Set(); let changedFileIds = new Set<string>();
for (let p of patch) { for (let p of patch) {
changedFileIds.add(p.path[0]); changedFileIds.add(p.path[0]);
} }