support comment pinning

dist/flow-typed/Lbry.js

@@ -158,6 +158,11 @@ declare type CommentHideResponse = {
   [string]: { hidden: boolean },
 };
 
+declare type CommentPinResponse = {
+  // keyed by the CommentIds entered
+  items: Comment,
+};
+
 declare type CommentAbandonResponse = {
   // keyed by the CommentId given
   abandoned: boolean,

flow-typed/Lbry.js

@@ -158,6 +158,11 @@ declare type CommentHideResponse = {
   [string]: { hidden: boolean },
 };
 
+declare type CommentPinResponse = {
+  // keyed by the CommentIds entered
+  items: Comment,
+};
+
 declare type CommentAbandonResponse = {
   // keyed by the CommentId given
   abandoned: boolean,

src/index.js

@@ -170,6 +170,8 @@ export {
   makeSelectOmittedCountForChannel,
   makeSelectClaimIsNsfw,
   makeSelectChannelForClaimUri,
+  makeSelectChannelPermUrlForClaimUri,
+  makeSelectMyChannelPermUrlForName,
   makeSelectClaimIsPending,
   makeSelectReflectingClaimForUri,
   makeSelectClaimsInChannelForCurrentPageState,

src/redux/selectors/claims.js

@@ -160,10 +160,11 @@ export const selectAbandoningIds = createSelector(
   state => Object.keys(state.abandoningById || {})
 );
 
-export const makeSelectAbandoningClaimById = (claimId: string) => createSelector(
+export const makeSelectAbandoningClaimById = (claimId: string) =>
+  createSelector(
     selectAbandoningIds,
     ids => ids.includes(claimId)
-);
+  );
 
 export const makeSelectIsAbandoningClaimForUri = (uri: string) =>
   createSelector(
@@ -648,6 +649,29 @@ export const makeSelectChannelForClaimUri = (uri: string, includePrefix: boolean
     }
   );
 
+export const makeSelectChannelPermUrlForClaimUri = (uri: string, includePrefix: boolean = false) =>
+  createSelector(
+    makeSelectClaimForUri(uri),
+    (claim: ?Claim) => {
+      if (claim && claim.value_type === 'channel') {
+        return claim.permanent_url;
+      }
+      if (!claim || !claim.signing_channel || !claim.is_channel_signature_valid) {
+        return null;
+      }
+      return claim.signing_channel.permanent_url;
+    }
+  );
+
+export const makeSelectMyChannelPermUrlForName = (name: string) =>
+  createSelector(
+    selectMyChannelClaims,
+    claims => {
+      const matchingClaim = claims.find(claim => claim.name === name);
+      return matchingClaim ? matchingClaim.permanent_url : null;
+    }
+  );
+
 export const makeSelectTagsForUri = (uri: string) =>
   createSelector(
     makeSelectMetadataForUri(uri),