62 lines
1.8 KiB
JavaScript
62 lines
1.8 KiB
JavaScript
const isFreePublicClaim = require('./isFreePublicClaim.js');
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const lbryApi = require('../lbryApi.js');
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const logger = require('winston');
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function filterForFreePublicClaims (claimsListArray) {
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logger.debug('filtering claims list for free, public claims');
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if (!claimsListArray) {
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return null;
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}
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const freePublicClaims = claimsListArray.filter(claim => {
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if (!claim.value) {
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return false;
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}
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return isFreePublicClaim(claim);
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});
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return freePublicClaims;
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}
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function orderClaims (claimsListArray) {
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logger.debug('ordering the free public claims');
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claimsListArray.sort((a, b) => {
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if (a.amount === b.amount) {
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return a.height < b.height;
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} else {
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return a.amount < b.amount;
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}
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});
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return claimsListArray;
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}
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module.exports = (claimName) => {
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return new Promise((resolve, reject) => {
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// make a call to the daemon to get the claims list
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lbryApi
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.getClaimsList(claimName)
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.then(({ claims }) => {
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logger.debug(`Number of claims: ${claims.length}`);
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// return early if no claims were found
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if (claims.length === 0) {
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logger.debug('exiting due to lack of claims');
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resolve(null);
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return;
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}
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// filter the claims to return only free, public claims
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const freePublicClaims = filterForFreePublicClaims(claims);
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// return early if no free, public claims were found
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if (!freePublicClaims || freePublicClaims.length === 0) {
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logger.debug('exiting due to lack of free or public claims');
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resolve(null);
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return;
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}
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// order the claims
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const orderedPublicClaims = orderClaims(freePublicClaims);
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// resolve the promise
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resolve(orderedPublicClaims);
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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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