feat(ario contract): add distributions and observation apis

src/common.ts

@@ -14,7 +14,13 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-import { ArIOState, ArNSNameData, Gateway } from './contract-state.js';
+import {
+  ArIOState,
+  ArNSNameData,
+  EpochDistributionData,
+  Gateway,
+  Observations,
+} from './contract-state.js';
 
 export type BlockHeight = number;
 export type SortKey = string;
@@ -73,6 +79,12 @@ export interface ArIOContract {
   }: EvaluationParameters): Promise<
     Record<string, ArNSNameData> | Record<string, never>
   >;
+  getObservations({
+    evaluationOptions,
+  }: EvaluationParameters): Promise<Observations>;
+  getDistributions({
+    evaluationOptions,
+  }: EvaluationParameters): Promise<EpochDistributionData>;
 }
 
 /* eslint-disable @typescript-eslint/no-explicit-any */

src/common/ar-io.ts

@@ -19,8 +19,11 @@ import {
   ArIOContract,
   ArIOState,
   ArNSNameData,
+  EpochDistributionData,
+  EvaluationOptions,
   EvaluationParameters,
   Gateway,
+  Observations,
   SmartWeaveContract,
 } from '../types.js';
 import { RemoteContract } from './contracts/remote-contract.js';
@@ -149,4 +152,24 @@ export class ArIO implements ArIOContract {
       evaluationOptions,
     });
   }
+  async getObservations({
+    evaluationOptions,
+  }: {
+    evaluationOptions?: EvaluationOptions | Record<string, never> | undefined;
+  }): Promise<Observations> {
+    const { observations } = await this.contract.getContractState({
+      evaluationOptions,
+    });
+    return observations;
+  }
+  async getDistributions({
+    evaluationOptions,
+  }: {
+    evaluationOptions?: EvaluationOptions | Record<string, never> | undefined;
+  }): Promise<EpochDistributionData> {
+    const { distributions } = await this.contract.getContractState({
+      evaluationOptions,
+    });
+    return distributions;
+  }
 }