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Copy pathrepm-invoker.ts
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273 lines (228 loc) · 5.88 KB
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import type {JSONValue} from './json.js';
import type {ScanOptionsRPC} from './scan-options.js';
import init, {dispatch} from './wasm/release/replicache_client.js';
import type {InitOutput} from './wasm/release/replicache_client.js';
/**
* This type is used for the [[ReplicacheOptions.wasmModule]] property.
*/
export type InitInput =
| string
| RequestInfo
| URL
| Response
| BufferSource
| WebAssembly.Module;
export type Invoker = {
readonly invoke: REPMInvoke;
};
export interface Invoke {
<RPC extends keyof InvokeMapNoArgs>(rpc: RPC): Promise<InvokeMapNoArgs[RPC]>;
<RPC extends keyof InvokeMap>(rpc: RPC, args: InvokeMap[RPC][0]): Promise<
InvokeMap[RPC][1]
>;
}
export interface REPMInvoke {
<R extends keyof InvokeMapNoArgs>(dbName: string, rpc: R): Promise<
InvokeMapNoArgs[R]
>;
<R extends keyof InvokeMap>(
dbName: string,
rpc: R,
args: InvokeMap[R][0],
): Promise<InvokeMap[R][1]>;
(dbName: string, rpc: RPC, args?: JSONValue): Promise<JSONValue>;
}
let wasmModuleOutput: Promise<InitOutput> | undefined;
export class REPMWasmInvoker {
constructor(wasmModuleOrPath?: InitInput) {
if (!wasmModuleOutput) {
// Hack around Webpack invalid support for import.meta.url and wasm
// loaders. We use the new URL pattern to tell Webpack to use a runtime
// URL and not a compile time file: URL.
if (!wasmModuleOrPath) {
wasmModuleOrPath = new URL(
'./wasm/release/replicache_client_bg.wasm',
import.meta.url,
);
}
wasmModuleOutput = init(wasmModuleOrPath);
}
}
invoke: REPMInvoke = async (
dbName: string,
rpc: RPC,
args: JSONValue = {},
): Promise<JSONValue> => {
await wasmModuleOutput;
return await dispatch(dbName, rpc, args);
};
}
type OpenRequest = {
useMemstore: boolean;
};
export type OpenResponse = string;
type GetRequest = TransactionRequest & {
key: string;
};
type GetResponse = {
has?: boolean;
value: string;
};
type HasRequest = TransactionRequest & {
key: string;
};
type HasResponse = {
has: boolean;
};
type TransactionRequest = {
transactionId: number;
};
export type ScanRequest = TransactionRequest & {
opts?: ScanOptionsRPC;
receiver: (
primaryKey: string,
secondaryKey: string | null,
value: Uint8Array,
) => void;
};
export type ScanResponse = unknown;
type PutRequest = TransactionRequest & {
key: string;
value: string;
};
type PutResponse = unknown;
type DelRequest = TransactionRequest & {key: string};
type DelResponse = {ok: boolean};
type RebaseOpts =
| Record<string, unknown>
| {
basis: string;
original: string;
};
export type OpenTransactionRequest = {
name?: string;
args?: string;
rebaseOpts?: RebaseOpts;
isSubscription: boolean;
};
type OpenTransactionResponse = {
transactionId: number;
};
type OpenIndexTransactionRequest = unknown;
type OpenIndexTransactionResponse = OpenTransactionResponse;
type CloseTransactionRequest = TransactionRequest;
export type CloseTransactionResponse = unknown;
type CommitTransactionRequest = TransactionRequest & {
generateChangedKeys: boolean;
};
// The changed keys in different indexes. The key of the map is the index name.
// "" is used for the primary index.
export type ChangedKeysMap = Map<string, string[]>;
export type CommitTransactionResponse = {
ref: string;
changedKeys: ChangedKeysMap;
};
type BeginTryPullRequest = {
pullURL: string;
pullAuth: string;
schemaVersion: string;
};
type BeginTryPullResponse = {
httpRequestInfo: HTTPRequestInfo;
syncHead: string;
requestID: string;
};
type TryPushRequest = {
pushURL: string;
pushAuth: string;
schemaVersion: string;
};
type TryPushResponse = {
httpRequestInfo?: HTTPRequestInfo;
};
type HTTPRequestInfo = {
httpStatusCode: number;
errorMessage: string;
};
type MaybeEndTryPullRequest = {
requestID: string;
syncHead: string;
};
type Mutation = {
id: number;
name: string;
args: string;
};
type ReplayMutation = Mutation & {
original: string;
};
type MaybeEndTryPullResponse = {
replayMutations?: ReplayMutation[];
syncHead: string;
changedKeys: ChangedKeysMap;
};
type SetLogLevelRequest = {level: 'debug' | 'info' | 'error'};
type SetLogLevelResponse = unknown;
type CreateIndexRequest = TransactionRequest & {
name: string;
keyPrefix: string;
jsonPointer: string;
};
type CreateIndexResponse = unknown;
type DropIndexRequest = TransactionRequest & {
name: string;
};
type DropIndexResponse = unknown;
export type InvokeMap = {
[RPC.Open]: [OpenRequest, OpenResponse];
[RPC.Get]: [GetRequest, GetResponse];
[RPC.Has]: [HasRequest, HasResponse];
[RPC.Scan]: [ScanRequest, ScanResponse];
[RPC.Put]: [PutRequest, PutResponse];
[RPC.Del]: [DelRequest, DelResponse];
[RPC.OpenTransaction]: [OpenTransactionRequest, OpenTransactionResponse];
[RPC.OpenIndexTransaction]: [
OpenIndexTransactionRequest,
OpenIndexTransactionResponse,
];
[RPC.CloseTransaction]: [CloseTransactionRequest, CloseTransactionResponse];
[RPC.CommitTransaction]: [
CommitTransactionRequest,
CommitTransactionResponse,
];
[RPC.BeginTryPull]: [BeginTryPullRequest, BeginTryPullResponse];
[RPC.MaybeEndTryPull]: [MaybeEndTryPullRequest, MaybeEndTryPullResponse];
[RPC.TryPush]: [TryPushRequest, TryPushResponse];
[RPC.SetLogLevel]: [SetLogLevelRequest, SetLogLevelResponse];
[RPC.CreateIndex]: [CreateIndexRequest, CreateIndexResponse];
[RPC.DropIndex]: [DropIndexRequest, DropIndexResponse];
};
type CloseResponse = '';
type GetRootResponse = {
root: string;
};
export type InvokeMapNoArgs = {
[RPC.Close]: CloseResponse;
[RPC.GetRoot]: GetRootResponse;
};
export enum RPC {
BeginTryPull = 1,
Close,
CloseTransaction,
CommitTransaction,
CreateIndex,
Debug,
Del,
DropIndex,
Get,
GetRoot,
Has,
MaybeEndTryPull,
Open,
OpenIndexTransaction,
OpenTransaction,
Put,
Scan,
SetLogLevel,
TryPush,
}