Proposal extends Method

packages/types/src/Extrinsic.ts

@@ -22,9 +22,6 @@ type ExtrinsicValue = {
   signature?: ExtrinsicSignature
 };
 
-// console.error('ExtrinsicSignature', ExtrinsicSignature);
-// console.error('Method', Method);
-
 /**
  * Representation of an Extrinsic in the system. It contains the actual call,
  * (optional) signature and encodes with an actual length prefix

packages/types/src/Proposal.ts

@@ -2,9 +2,56 @@
 // This software may be modified and distributed under the terms
 // of the ISC license. See the LICENSE file for details.
 
-import Extrinsic from './Extrinsic';
+import hexToU8a from '@polkadot/util/hex/toU8a';
+import u8aConcat from '@polkadot/util/u8a/concat';
+import u8aToHex from '@polkadot/util/u8a/toHex';
 
-// The Nonce or number of transactiosn sent by a specific account. Generally used
+import Compact from './codec/Compact';
-// with extrinsics to determine the order of execution.
+import Method from './Method';
-export default class Proposal extends Extrinsic {
+
+// A proposal in the system. It contains the same data as an extrinsic, but the encoding
+// does not allow for signatures or versions, only the callindex & parameters required
+export default class Proposal extends Method {
+  get length (): number {
+    return this.toU8a(true).length;
+  }
+
+  byteLength (): number {
+    const length = this.length;
+
+    return length + Compact.encode(length).length;
+  }
+
+  fromJSON (input: any): Proposal {
+    super.fromU8a(hexToU8a(input));
+
+    return this;
+  }
+
+  fromU8a (input: Uint8Array): Proposal {
+    const [offset, length] = Compact.decode(input);
+
+    super.fromU8a(input.subarray(offset, offset + length.toNumber()));
+
+    return this;
+  }
+
+  toU8a (isBare?: boolean): Uint8Array {
+    const encoded = super.toU8a();
+
+    return isBare
+      ? encoded
+      : u8aConcat(
+        Compact.encode(encoded.length),
+        encoded
+      );
+  }
+
+  toHex (): string {
+    return u8aToHex(this.toU8a());
+  }
+
+  toJSON (): any {
+    return this.toHex();
+  }
 }