@bsv/wallet-toolbox-client
Version:
Client only Wallet Storage
67 lines • 2.64 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.BulkStorageBase = void 0;
const HeightRange_1 = require("../util/HeightRange");
const utilityHelpers_noBuffer_1 = require("../../../../utility/utilityHelpers.noBuffer");
class BulkStorageBase {
static createBulkStorageBaseOptions(chain, fs) {
const options = {
chain,
fs
};
return options;
}
constructor(options) {
this.chain = options.chain;
this.fs = options.fs;
}
async shutdown() { }
async findHeaderForHeight(height) {
const header = await this.findHeaderForHeightOrUndefined(height);
if (!header)
throw new Error(`No header found for height ${height}`);
return header;
}
async getHeightRange() {
return new HeightRange_1.HeightRange(0, await this.getMaxHeight());
}
async setStorage(storage) { }
async exportBulkHeaders(rootFolder, jsonFilename, maxPerFile) {
const info = {
rootFolder: rootFolder,
jsonFilename: jsonFilename,
files: [],
headersPerFile: maxPerFile
};
const maxHeight = await this.getMaxHeight();
const baseFilename = jsonFilename.slice(0, -5); // remove ".json"
let prevHash = '00'.repeat(32);
let prevChainWork = '00'.repeat(32);
for (let height = 0; height <= maxHeight; height += maxPerFile) {
const count = Math.min(maxPerFile, maxHeight - height + 1);
let file = {
fileName: `${baseFilename}_${info.files.length}.headers`,
firstHeight: height,
prevHash: prevHash,
prevChainWork: prevChainWork,
count: count,
lastHash: null,
fileHash: null,
lastChainWork: ''
};
const buffer = await this.headersToBuffer(height, count);
await this.fs.writeFile(this.fs.pathJoin(rootFolder, file.fileName), buffer);
/*
file = await BulkFilesReader.validateHeaderFile(this.fs, rootFolder, file)
if (!file.lastHash) throw new Error('Unexpected result.')
prevHash = file.lastHash
prevChainWork = file.lastChainWork
info.files.push(file)
*/
}
const bytes = (0, utilityHelpers_noBuffer_1.asUint8Array)(JSON.stringify(info), 'utf8');
await this.fs.writeFile(this.fs.pathJoin(rootFolder, jsonFilename), bytes);
}
}
exports.BulkStorageBase = BulkStorageBase;
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