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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 | 14x 14x 14x 14x 1919x 1919x 1919x 1919x 1609x 1609x 1609x 1609x 27048x 1609x 266396x 96110x 66789x 58274x 37142x 34941x 4693x 3x 29321x 29321x 80702x 29321x 3x 3x 3x 3x 3x 9x 9x 8x 3x 8515x 8515x 8515x 8515x 7759x 680x 680x 7079x 7079x 11280x 7079x 21132x 21132x 112952x 21132x 112952x 57615x 57615x 55337x 55337x 4690x 4690x 47655x 4690x 47655x 32936x 32936x 14719x 14719x 4120x 30248x 30248x 30248x 1x 1x 30247x 30248x | import * as nodes from '../../../nodes';
import {toBase64} from '@jsonjoy.com/base64/lib/toBase64';
import {SESSION} from '../../../../json-crdt-patch/constants';
import {type ITimestampStruct, type IClockVector, Timestamp} from '../../../../json-crdt-patch/clock';
import type {Model} from '../../../model';
import type * as types from './types';
import type {Chunk} from '../../../nodes/rga';
export class Encoder {
protected model!: Model;
public encode(model: Model<any>): types.JsonCrdtVerboseDocument {
this.model = model;
const clock = model.clock;
const isServerClock = clock.sid === SESSION.SERVER;
return {
time: isServerClock ? clock.time : this.cClock(model.clock),
root: this.cVal(model.root),
};
}
public cClock(clock: IClockVector): types.JsonCrdtVerboseLogicalTimestamp[] {
const data: types.JsonCrdtVerboseLogicalTimestamp[] = [];
const sessionId = clock.sid;
const localTs = clock.peers.get(sessionId);
if (!localTs) data.push([sessionId, clock.time]);
for (const c of clock.peers.values()) data.push([c.sid, c.time]);
return data;
}
public cTs(ts: ITimestampStruct): types.JsonCrdtVerboseLogicalTimestamp | types.JsonCrdtVerboseServerTimestamp {
return ts.sid === SESSION.SERVER ? ts.time : [ts.sid, ts.time];
}
public cNode(node: nodes.JsonNode): types.JsonCrdtNode {
if (node instanceof nodes.ObjNode) return this.cObj(node);
else if (node instanceof nodes.ArrNode) return this.cArr(node);
else if (node instanceof nodes.StrNode) return this.cStr(node);
else if (node instanceof nodes.ValNode) return this.cVal(node);
else if (node instanceof nodes.ConNode) return this.cCon(node);
else if (node instanceof nodes.BinNode) return this.cBin(node);
else if (node instanceof nodes.VecNode) return this.cVec(node);
throw new Error('UNKNOWN_NODE');
}
public cObj(obj: nodes.ObjNode): types.JsonCrdtVerboseObj {
const map: Record<string, types.JsonCrdtNode> = {};
obj.nodes((node, key) => {
map[key] = this.cNode(node);
});
return {
type: 'obj',
id: this.cTs(obj.id),
map,
};
}
public cVec(obj: nodes.VecNode): types.JsonCrdtVerboseVec {
const map: types.JsonCrdtVerboseVec['map'] = [];
const elements = obj.elements;
const length = elements.length;
const index = this.model.index;
for (let i = 0; i < length; i++) {
const element = elements[i];
if (element === undefined) map.push(null);
else map.push(this.cNode(index.get(element)!));
}
return {
type: 'vec',
id: this.cTs(obj.id),
map,
};
}
public cArr(obj: nodes.ArrNode): types.JsonCrdtVerboseArr {
const chunks: (types.JsonCrdtVerboseArrChunk | types.JsonCrdtVerboseTombstone)[] = [];
const iterator = obj.iterator();
let chunk: Chunk<ITimestampStruct[]> | undefined;
while ((chunk = iterator())) chunks.push(this.cArrChunk(chunk));
return {
type: 'arr',
id: this.cTs(obj.id),
chunks,
};
}
public cArrChunk(chunk: nodes.ArrChunk): types.JsonCrdtVerboseArrChunk | types.JsonCrdtVerboseTombstone {
if (chunk.del) {
const tombstone: types.JsonCrdtVerboseTombstone = {
id: this.cTs(chunk.id),
span: chunk.span,
};
return tombstone;
}
const index = this.model.index;
const res: types.JsonCrdtVerboseArrChunk = {
id: this.cTs(chunk.id),
value: chunk.data!.map((n) => this.cNode(index.get(n)!)),
};
return res;
}
public cStr(obj: nodes.StrNode): types.JsonCrdtVerboseStr {
const chunks: (types.JsonCrdtVerboseStrChunk | types.JsonCrdtVerboseTombstone)[] = [];
const iterator = obj.iterator();
let chunk: ReturnType<typeof iterator>;
while ((chunk = iterator())) chunks.push(this.cStrChunk(chunk as nodes.StrChunk));
return {
type: 'str',
id: this.cTs(obj.id),
chunks,
};
}
public cStrChunk(chunk: nodes.StrChunk): types.JsonCrdtVerboseStrChunk | types.JsonCrdtVerboseTombstone {
if (chunk.del) {
const tombstone: types.JsonCrdtVerboseTombstone = {
id: this.cTs(chunk.id),
span: chunk.span,
};
return tombstone;
}
const res: types.JsonCrdtVerboseStrChunk = {
id: this.cTs(chunk.id),
value: chunk.data!,
};
return res;
}
public cBin(obj: nodes.BinNode): types.JsonCrdtVerboseBin {
const chunks: (types.JsonCrdtVerboseBinChunk | types.JsonCrdtVerboseTombstone)[] = [];
const iterator = obj.iterator();
let chunk: ReturnType<typeof iterator>;
while ((chunk = iterator())) chunks.push(this.cBinChunk(chunk as nodes.BinChunk));
return {
type: 'bin',
id: this.cTs(obj.id),
chunks,
};
}
public cBinChunk(chunk: nodes.BinChunk): types.JsonCrdtVerboseBinChunk | types.JsonCrdtVerboseTombstone {
if (chunk.del) {
const tombstone: types.JsonCrdtVerboseTombstone = {
id: this.cTs(chunk.id),
span: chunk.span,
};
return tombstone;
}
const res: types.JsonCrdtVerboseStrChunk = {
id: this.cTs(chunk.id),
value: toBase64(chunk.data!),
};
return res;
}
public cVal(obj: nodes.ValNode): types.JsonCrdtVerboseVal {
return {
type: 'val',
id: this.cTs(obj.id),
value: this.cNode(obj.node()),
};
}
public cCon(obj: nodes.ConNode): types.JsonCrdtVerboseCon {
const node: types.JsonCrdtVerboseCon = {
type: 'con',
id: this.cTs(obj.id),
};
const val = obj.val;
if (val instanceof Timestamp) {
node.timestamp = true;
node.value = this.cTs(val);
} else {
if (val !== undefined) node.value = val;
}
return node;
}
}
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