134 lines
4.1 KiB
JavaScript
134 lines
4.1 KiB
JavaScript
const lbryApi = require('../helpers/lbryApi.js');
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const db = require('../models');
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const logger = require('winston');
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const { getTopFreeClaim, getFullClaimIdFromShortId, resolveAgainstClaimTable } = require('../helpers/serveHelpers.js');
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function checkForLocalAssetByClaimId (claimId, name) {
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return new Promise((resolve, reject) => {
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db.File
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.findOne({where: { name, claimId }})
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.then(result => {
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if (result) {
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resolve(result.dataValues);
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} else {
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resolve(null);
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}
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})
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.catch(error => {
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reject(error);
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});
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});
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}
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function formatGetResultsToFileInfo ({ name, claim_id, outpoint, file_name, download_path, mime_type, metadata }) {
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return {
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name,
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claimId : claim_id,
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outpoint,
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fileName: file_name,
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filePath: download_path,
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fileType: mime_type,
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nsfw : metadata.stream.metadata.nsfw,
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};
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}
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function getAssetByClaimId (fullClaimId, name) {
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logger.debug('...getting asset by claim Id...');
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return new Promise((resolve, reject) => {
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// 1. check locally for claim
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checkForLocalAssetByClaimId(fullClaimId, name)
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.then(dataValues => {
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// if a result was found, return early with the result
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if (dataValues) {
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logger.debug('found a local file for this name and claimId');
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return resolve(dataValues);
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}
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logger.debug('no local file found for this name and claimId');
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// 2. if no local claim, resolve and get the claim
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resolveAgainstClaimTable(name, fullClaimId)
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.then(resolveResult => {
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logger.debug('resolve result >> ', resolveResult);
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// if no result, return early (claim doesn't exist or isn't free)
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if (!resolveResult) {
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return resolve(null);
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}
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let fileRecord = {};
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// get the claim
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lbryApi.getClaim(`${name}#${fullClaimId}`)
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.then(getResult => {
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logger.debug('getResult >>', getResult);
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fileRecord = formatGetResultsToFileInfo(getResult);
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fileRecord['address'] = (resolveResult.address || 0);
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fileRecord['height'] = resolveResult.height;
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// insert a record in the File table & Update Claim table
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return db.File.create(fileRecord);
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})
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.then(fileRecordResults => {
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logger.debug('File record successfully updated');
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resolve(fileRecord);
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})
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.catch(error => {
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reject(error);
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});
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})
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.catch(error => {
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reject(error);
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});
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})
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.catch(error => {
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reject(error);
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});
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});
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}
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module.exports = {
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getAssetByChannel (channelName, name) {
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logger.debug('...getting asset by channel...');
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return new Promise((resolve, reject) => {
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// temporarily throw error
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reject(new Error('channel names are not currently supported'));
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// get the claim id
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// get the asset by claim Id
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});
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},
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getAssetByShortId: function (shortId, name) {
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logger.debug('...getting asset by short id...');
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return new Promise((resolve, reject) => {
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// get the full claimId
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getFullClaimIdFromShortId(shortId, name)
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// get the asset by the claimId
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.then(claimId => {
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logger.debug('claim id =', claimId);
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resolve(getAssetByClaimId(claimId, name));
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})
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.catch(error => {
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reject(error);
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});
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});
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},
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getAssetByClaimId (fullClaimId, name) {
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return getAssetByClaimId(fullClaimId, name);
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},
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getAssetByName (name) {
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logger.debug('...getting asset by claim name...');
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return new Promise((resolve, reject) => {
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// 1. get a list of the free public claims
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getTopFreeClaim(name)
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// 2. check locally for the top claim
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.then(topFreeClaim => {
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// if no claims were found, return null
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if (!topFreeClaim) {
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return resolve(null);
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}
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// parse the result
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const claimId = topFreeClaim.claimId;
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logger.debug('top free claim id =', claimId);
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// get the asset
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resolve(getAssetByClaimId(claimId, name));
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})
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.catch(error => {
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reject(error);
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});
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});
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},
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};
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