@ablestack/rdo
Version:
A library to facilitate building and running graphs of Reactive Domain Objects - connecting JSON data sources to reactive client applications
83 lines • 3.42 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.CollectionReconciliationUtils = void 0;
const logger_1 = require("../../infrastructure/logger");
const logger = logger_1.Logger.make('CollectionUtils');
const _Array = {
getCollectionKeys: ({ collection, makeCollectionKey }) => {
return collection.length > 0
? collection.map((item) => {
const key = makeCollectionKey(item);
if (!key) {
throw new Error('Array.getCollectionKeys - makeCollectionKey did not produce a value');
}
return key;
})
: [];
},
getElement: ({ collection, makeCollectionKey, key }) => {
return collection.length > 0 ? collection.find((item) => makeCollectionKey(item) === key) : undefined;
},
insertElement: ({ collection, key, value }) => collection.push(value),
updateElement: ({ collection, makeCollectionKey, value }) => {
if (collection.length === 0)
return false;
const key = makeCollectionKey(value);
const existingItemIndex = collection.findIndex((item) => makeCollectionKey(item) === key);
if (existingItemIndex) {
collection.splice(existingItemIndex, 1, value);
return true;
}
return false;
},
deleteElement: ({ collection, makeCollectionKey, key }) => {
if (collection.length === 0)
return undefined;
const existingItemIndex = collection.findIndex((item) => makeCollectionKey(item) === key);
if (existingItemIndex !== -1) {
return collection.splice(existingItemIndex, 1)[0];
}
return undefined;
},
};
const _Set = {
getCollectionKeys: ({ collection, makeCollectionKey }) => collection.size > 0
? Array.from(collection.values()).map((item) => {
const key = makeCollectionKey(item);
if (!key)
throw new Error('Set.getCollectionKeys - makeCollectionKey did not produce a value');
return key;
})
: [],
getElement: ({ collection, makeCollectionKey, key }) => collection.size > 0 ? Array.from(collection.values()).find((item) => makeCollectionKey(item) == key) : undefined,
insertElement: ({ collection, key, value }) => {
collection.add(value);
},
updateElement: ({ collection, makeCollectionKey, value }) => {
if (collection.size === 0)
return false;
const key = makeCollectionKey(value);
const existingItem = Array.from(collection.values()).find((item) => makeCollectionKey(item) === key);
if (existingItem) {
collection.delete(existingItem);
collection.add(value);
return true;
}
return false;
},
deleteElement: ({ collection, makeCollectionKey, key }) => {
if (collection.size === 0)
return undefined;
const item = Array.from(collection.values()).find((item) => makeCollectionKey(item) === key);
if (item) {
collection.delete(item);
return item;
}
return undefined;
},
};
//
//
//
exports.CollectionReconciliationUtils = { Array: _Array, Set: _Set };
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