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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 46684x 13x 7793x 7793x 7793x 7793x 33437x 2824x 3x 2821x 2824x 741x 741x 3992x 3992x 2x 2x 3247x 3247x 702x 702x 2425x 2425x 1567x 1567x 4624x 11647x 4624x 1x 1x 1x 5709x 5709x 2206x 2206x 1819x 1819x 2978x 11181x 2978x 600x 600x 7793x 7793x 7793x | 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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