Added metadata functions and message for when there's no ships available

app/js/components/addToken.js

@@ -33,15 +33,31 @@ class AddToken extends Component {
 
     this.setState({isSubmitting: true});
 
-    // TODO:
     let attributes = {
+      "name": "Nave Espacial",
+      "image": "", 
+      "attributes": {
+        "energy": this.state.energy,
+        "lasers": this.state.lasers,
+        "shield": this.state.shield
+      }
     }
+    
+
+
+
+
+
+
+
+
 
     // Cargamos la imagen a IPFS
     EmbarkJS.Storage.uploadFile(this.state.fileToUpload)
     .then(fileHash => {
       // Agregamos los datos a la lista de atributos
       attributes.imageHash = fileHash;
+      attributes.image = 'https://ipfs.io/ipfs/' + fileHash;
 
       // Guardamos la lista de atributos
       return EmbarkJS.Storage.saveText(JSON.stringify(attributes))

app/js/components/shipList.js

@@ -61,6 +61,12 @@ enableMarketplace = () => {
       <h3>{title}</h3> 
       { wallet ? <EnableSales isSubmitting={this.state.isSubmitting} handleChange={this.enableMarketplace} salesEnabled={this.state.salesEnabled} /> : ''}
       { list.map((ship, i) => <Ship onAction={onAction} wallet={wallet} salesEnabled={salesEnabled} key={i} marketplace={marketplace} {...ship} />) }
+      
+      { list.length == 0 
+        ? <p>No hay naves disponibles</p> 
+        : ''
+      }
+
       </div>;
   }
 

contracts/SpaceshipToken.sol

@@ -3,7 +3,6 @@ pragma solidity 0.4.24;
 import "zeppelin-solidity/contracts/token/ERC721/ERC721Token.sol";
 import 'zeppelin-solidity/contracts/ownership/Ownable.sol';
 
-
 /**
  @title Contrato base para Mexico Workshop
  @dev En Status tambien hablamos espanol ;)
@@ -96,4 +95,24 @@ contract SpaceshipToken is ERC721Token("CryptoSpaceships", "CST"), Ownable {
         lasers = s.lasers;
         shield = s.shield;
     }
+
+
+    // Obtain metadata
+
+    function tokenURI(uint256 _spaceshipId) public view returns (string) {
+        Spaceship storage s = spaceships[_spaceshipId];
+        return strConcat("https://ipfs.io/ipfs/", string(s.metadataHash));
+    }
+
+    function strConcat(string _a, string _b) private returns (string) {
+        bytes memory _ba = bytes(_a);
+        bytes memory _bb = bytes(_b);
+        string memory ab = new string(_ba.length + _bb.length);
+        bytes memory bab = bytes(ab);
+        uint k = 0;
+        for (uint i = 0; i < _ba.length; i++) bab[k++] = _ba[i];
+        for (i = 0; i < _bb.length; i++) bab[k++] = _bb[i];
+        return string(bab);
+    }
+
 }