import { createSelector } from "reselect"; import lbryuri from "lbryuri"; import { makeSelectCurrentParam } from "./navigation"; const _selectState = state => state.claims || {}; export const selectClaimsById = createSelector( _selectState, state => state.byId || {} ); export const selectClaimsByUri = createSelector( _selectState, selectClaimsById, (state, byId) => { const byUri = state.claimsByUri || {}; const claims = {}; Object.keys(byUri).forEach(uri => { const claimId = byUri[uri]; // NOTE returning a null claim allows us to differentiate between an // undefined (never fetched claim) and one which just doesn't exist. Not // the cleanest solution but couldn't think of anything better right now if (claimId === null) { claims[uri] = null; } else { const claim = byId[claimId]; claims[uri] = claim; } }); return claims; } ); export const selectAllClaimsByChannel = createSelector( _selectState, state => state.claimsByChannel || {} ); export const makeSelectClaimForUri = uri => { return createSelector( selectClaimsByUri, claims => claims && claims[lbryuri.normalize(uri)] ); }; export const makeSelectClaimIsMine = rawUri => { const uri = lbryuri.normalize(rawUri); return createSelector( selectClaimsByUri, selectMyActiveClaims, (claims, myClaims) => claims && claims[uri] && claims[uri].claim_id && myClaims.has(claims[uri].claim_id) ); }; export const selectAllFetchingChannelClaims = createSelector( _selectState, state => state.fetchingChannelClaims || {} ); export const makeSelectFetchingChannelClaims = uri => { return createSelector( selectAllFetchingChannelClaims, fetching => fetching && fetching[uri] ); }; export const makeSelectClaimsInChannelForCurrentPage = uri => { const pageSelector = makeSelectCurrentParam("page"); return createSelector( selectClaimsById, selectAllClaimsByChannel, pageSelector, (byId, allClaims, page) => { const byChannel = allClaims[uri] || {}; const claimIds = byChannel[page || 1]; if (!claimIds) return claimIds; return claimIds.map(claimId => byId[claimId]); } ); }; export const makeSelectMetadataForUri = uri => { return createSelector(makeSelectClaimForUri(uri), claim => { const metadata = claim && claim.value && claim.value.stream && claim.value.stream.metadata; const value = metadata ? metadata : claim === undefined ? undefined : null; return value; }); }; export const makeSelectTitleForUri = uri => { return createSelector( makeSelectMetadataForUri(uri), metadata => metadata && metadata.title ); }; export const makeSelectContentTypeForUri = uri => { return createSelector(makeSelectClaimForUri(uri), claim => { const source = claim && claim.value && claim.value.stream && claim.value.stream.source; return source ? source.contentType : undefined; }); }; export const selectIsFetchingClaimListMine = createSelector( _selectState, state => !!state.isFetchingClaimListMine ); export const selectMyClaimsRaw = createSelector( _selectState, state => state.myClaims ); export const selectAbandoningIds = createSelector(_selectState, state => Object.keys(state.abandoningById || {}) ); export const selectMyActiveClaims = createSelector( selectMyClaimsRaw, selectAbandoningIds, (claims, abandoningIds) => new Set( claims && claims .map(claim => claim.claim_id) .filter(claimId => Object.keys(abandoningIds).indexOf(claimId) === -1) ) ); export const selectPendingClaims = createSelector(_selectState, state => Object.values(state.pendingById || {}) ); export const selectMyClaims = createSelector( selectMyActiveClaims, selectClaimsById, selectAbandoningIds, selectPendingClaims, (myClaimIds, byId, abandoningIds, pendingClaims) => { const claims = []; myClaimIds.forEach(id => { const claim = byId[id]; if (claim && abandoningIds.indexOf(id) == -1) claims.push(claim); }); return [...claims, ...pendingClaims]; } ); export const selectMyClaimsWithoutChannels = createSelector( selectMyClaims, myClaims => myClaims.filter(claim => !claim.name.match(/^@/)) ); export const selectAllMyClaimsByOutpoint = createSelector( selectMyClaimsRaw, claims => new Set( claims && claims.length ? claims.map(claim => `${claim.txid}:${claim.nout}`) : null ) ); export const selectMyClaimsOutpoints = createSelector( selectMyClaims, myClaims => { const outpoints = []; myClaims.forEach(claim => outpoints.push(`${claim.txid}:${claim.nout}`)); return outpoints; } ); export const selectFetchingMyChannels = createSelector( _selectState, state => !!state.fetchingMyChannels ); export const selectMyChannelClaims = createSelector( _selectState, selectClaimsById, (state, byId) => { const ids = state.myChannelClaims || []; const claims = []; ids.forEach(id => { if (byId[id]) { //I'm not sure why this check is necessary, but it ought to be a quick fix for https://github.com/lbryio/lbry-app/issues/544 claims.push(byId[id]); } }); return claims; } );