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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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | 13x 13x 13x 13x 13x 47994x 13x 8016x 8016x 8016x 8016x 34240x 2847x 3x 2844x 2847x 779x 779x 4054x 4054x 2x 2x 3270x 3270x 751x 751x 2481x 2481x 1696x 1696x 4551x 11371x 4551x 1x 1x 1x 5876x 5876x 2355x 2355x 1868x 1868x 3155x 11698x 3155x 554x 554x 8016x 8016x 8016x | import {fromBase64} from '@jsonjoy.com/base64/lib/fromBase64';
import {ts, ClockVector, ServerClockVector, tss, type ITimestampStruct} from '../../clock';
import {SESSION} from '../../constants';
import type {Patch} from '../../Patch';
import {PatchBuilder} from '../../PatchBuilder';
import type * as types from './types';
const decodeId = (time: types.JsonCodecTimestamp): ITimestampStruct =>
typeof time === 'number' ? ts(SESSION.SERVER, time) : ts(time[0], time[1]);
/**
* Decodes a JSON CRDT patch from a JavaScript POJO into a {@link Patch} instance.
*
* @param data A JavaScript POJO representing a JSON CRDT patch in "verbose" format.
* @returns A decoded {@link Patch} instance.
*/
export const decode = (data: types.JsonCodecPatch): Patch => {
const {id, ops} = data;
const clock = typeof id === 'number' ? new ServerClockVector(SESSION.SERVER, id) : new ClockVector(id[0], id[1]);
const builder = new PatchBuilder(clock);
for (const op of ops) {
switch (op.op) {
case 'new_con': {
if (op.timestamp) {
builder.const(decodeId(op.value as types.JsonCodecTimestamp));
} else {
builder.const(op.value);
}
break;
}
case 'new_val': {
builder.val();
break;
}
case 'new_obj': {
builder.obj();
break;
}
case 'new_vec': {
builder.vec();
break;
}
case 'new_str': {
builder.str();
break;
}
case 'new_bin': {
builder.bin();
break;
}
case 'new_arr': {
builder.arr();
break;
}
case 'ins_val': {
builder.setVal(decodeId(op.obj), decodeId(op.value));
break;
}
case 'ins_obj': {
builder.insObj(
decodeId(op.obj),
(op as types.JsonCodecInsObjOperation).value.map(([key, id]) => [key, decodeId(id)]),
);
break;
}
case 'ins_vec': {
builder.insVec(
decodeId(op.obj),
(op as types.JsonCodecInsVecOperation).value.map(([key, id]) => [key, decodeId(id)]),
);
break;
}
case 'ins_str': {
builder.insStr(decodeId(op.obj), decodeId(op.after || op.obj), op.value);
break;
}
case 'ins_bin': {
builder.insBin(decodeId(op.obj), decodeId(op.after || op.obj), fromBase64(op.value));
break;
}
case 'ins_arr': {
builder.insArr(decodeId(op.obj), decodeId(op.after || op.obj), op.values.map(decodeId));
break;
}
case 'del': {
builder.del(
decodeId(op.obj),
op.what.map((spans) => tss(...spans)),
);
break;
}
case 'nop': {
builder.nop(op.len || 1);
break;
}
}
}
const patch = builder.patch;
patch.meta = data.meta;
return patch;
};
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