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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | 42x 42x 42x 42x 42x 42x 4x 9x 9x 9x 9x 4x 4x 4x 4x 4x 4x 4x 4x 42x 4x 4x 4x 4x 42x | import {ExtensionId, ExtensionName} from '../constants';
import {NodeApi} from '../../json-crdt/model/api/nodes';
import {ExtNode} from '../../json-crdt/extensions/ExtNode';
import {Extension} from '../../json-crdt/extensions/Extension';
import {NodeBuilder, type nodes, s, type ObjNode} from '../../json-crdt';
import type {ExtApi} from '../../json-crdt';
const MNEMONIC = ExtensionName[ExtensionId.cnt];
class CntNode extends ExtNode<ObjNode, number> {
public readonly extId = ExtensionId.cnt;
public name(): string {
return MNEMONIC;
}
public view(): number {
const obj = this.data.view();
let sum: number = 0;
for (const key in obj) sum += Number(obj[key]);
return sum;
}
}
class CntApi extends NodeApi<CntNode> implements ExtApi<CntNode> {
public inc(increment: number): this {
const {api, node} = this;
const sid = api.model.clock.sid;
const sidStr = sid.toString(36);
const value = Number(node.data.get(sidStr)?.view() ?? 0);
const newValue = value + increment;
const obj = api.wrap(node.data);
obj.set({
[sidStr]: newValue,
});
return this;
}
}
const create = (value?: any, sid: any = 0) =>
new NodeBuilder((builder) => {
if (!sid) sid = builder.clock.sid;
const schema =
value === undefined
? s.map<nodes.con<number>>({})
: s.map<nodes.con<number>>({[sid.toString(36)]: s.con(value ?? 0)});
return schema.build(builder);
});
export const cnt = new Extension(ExtensionId.cnt, MNEMONIC, CntNode, CntApi, create);
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