Refactor IPFS pinner

lib/utils/ipfs-pinner.js

@@ -0,0 +1,32 @@
+class IpfsPinner {
+  constructor (kredits) {
+    this.kredits = kredits;
+  }
+
+  pinAll () {
+    return Promise.all([
+      this.kredits.Contributor.pinIpfsHashes(),
+      this.kredits.Contribution.pinIpfsHashes(),
+    ]);
+  }
+
+  monitor (callback) {
+    this.kredits.Contribution.on('ContributionAdded', (id) => {
+      this.kredits.Contribution.getData(id)
+        .then(data => { return this.kredits.ipfs.pin(data); })
+        .then(callback);
+    });
+    this.kredits.Contributor.on('ContributorAdded', (id) => {
+      this.kredits.Contribution.getData(id)
+        .then(data => { return this.kredits.ipfs.pin(data); })
+        .then(callback);
+    });
+    this.kredits.Contributor.on('ContributorProfileUpdated', (id) => {
+      this.kredits.Contributor.getData(id)
+        .then(data => { return this.kredits.ipfs.pin(data); })
+        .then(callback);
+    });
+  }
+
+}
+module.exports = IpfsPinner;

lib/utils/ipfs.js

@@ -41,6 +41,14 @@ class IPFS {
     return this._ipfsAPI.cat(ipfsHash);
   }
 
+  pin (hashData) {
+    let ipfsHash = hashData; // default - if it is a string
+    if (hashData.hasOwnProperty('hashSize')) {
+      ipfsHash = this.encodeHash(hashData);
+    }
+    return this._ipfsAPI.pin.add(multihashes.toB58String(ipfsHash));
+  }
+
   decodeHash (ipfsHash) {
     let multihash = multihashes.decode(multihashes.fromB58String(ipfsHash));
     return {