For much larger games the authority (or permissionless) oracle may want to be resized.

.gitpod.yml

@@ -0,0 +1,8 @@
+# This configuration file was automatically generated by Gitpod.
+# Please adjust to your needs (see https://www.gitpod.io/docs/config-gitpod-file)
+# and commit this file to your remote git repository to share the goodness with others.
+
+tasks:
+  - init: yarn install
+
+

js/cli/src/matches.ts

@@ -403,6 +403,35 @@ programCommand("drain_oracle")
     );
   });
 
+  programCommand("resize_oracle")
+  .requiredOption(
+    "-cp, --config-path <string>",
+    "JSON file with match settings"
+  )
+  .action(async (files: string[], cmd) => {
+    const { keypair, env, configPath, rpcUrl } = cmd.opts();
+
+    const walletKeyPair = loadWalletKey(keypair);
+    const anchorProgram = await getMatchesProgram(walletKeyPair, env, rpcUrl);
+
+    if (configPath === undefined) {
+      throw new Error("The configPath is undefined");
+    }
+    const configString = fs.readFileSync(configPath);
+
+    //@ts-ignore
+    const config = JSON.parse(configString);
+
+    await anchorProgram.resizeOracle({
+      authority: config.oracleState.authority
+        ? new web3.PublicKey(config.oracleState.authority)
+        : walletKeyPair.publicKey,
+      seed: config.oracleState.seed,
+      resize: config.resize ? new BN(config.resize) : new BN(150),
+
+    });
+  });
+
 programCommand("create_or_update_oracle")
   .requiredOption(
     "-cp, --config-path <string>",
@@ -430,7 +459,6 @@ programCommand("create_or_update_oracle")
       tokenTransferRoot: config.oracleState.tokenTransferRoot,
       tokenTransfers: config.oracleState.tokenTransfers,
       space: config.space ? new BN(config.space) : new BN(150),
-      resize: config.resize ? new BN(config.resize) : new BN(150),
       finalized: config.oracleState.finalized,
     });
   });

js/lib/src/contract/matches.ts

@@ -119,7 +119,11 @@ export interface CreateMatchAdditionalArgs {
   tokenTransferRoot: null;
   tokenTransfers: null | AnchorTokenDelta[];
 }
-
+export interface ResizeOracleArgs {
+  seed: string;
+  authority: web3.PublicKey;
+  resize: BN;
+}
 export interface CreateOrUpdateOracleArgs {
   seed: string;
   authority: web3.PublicKey;
@@ -538,6 +542,37 @@ export class MatchesInstruction {
       signers: [],
     };
   }
+
+  async resizeOracle(
+    args: ResizeOracleArgs,
+    _accounts = {},
+    _additionalArgs = {}
+  ) {
+    const [oracle, _oracleBump] = await getOracle(
+      new web3.PublicKey(args.seed),
+      args.authority
+    );
+
+    const match = (await getMatch(oracle))[0];
+
+    return {
+      instructions: [
+        await this.program.methods
+          .resizeOracle({
+            ...args,
+          })
+          .accounts({
+            oracle,
+            matchInstance: match,
+            payer: (this.program.provider as AnchorProvider).wallet.publicKey,
+            systemProgram: SystemProgram.programId,
+            rent: web3.SYSVAR_RENT_PUBKEY,
+          })
+          .instruction(),
+      ],
+      signers: [],
+    };
+  }
 }
 
 export class MatchesProgram {
@@ -745,6 +780,22 @@ export class MatchesProgram {
       signers
     );
   }
+
+  async resizeOracle(
+    args: ResizeOracleArgs,
+    _accounts = {},
+    _additionalArgs = {}
+  ) {
+    const { instructions, signers } =
+      await this.instruction.resizeOracle(args);
+
+    await sendTransactionWithRetry(
+      (this.program.provider as AnchorProvider).connection,
+      (this.program.provider as AnchorProvider).wallet,
+      instructions,
+      signers
+    );
+  }
 }
 
 export async function getMatchesProgram(

rust/matches/src/lib.rs

@@ -100,7 +100,7 @@ pub mod matches {
     use super::*;
 
     pub fn resize_oracle<'a, 'b, 'c, 'info>(
-        ctx: Context<'a, 'b, 'c, 'info, ReizeOracle<'info>>,
+        ctx: Context<'a, 'b, 'c, 'info, ResizeOracle<'info>>,
         args: ResizeOracleArgs,
     ) -> Result<()> {
 
@@ -795,13 +795,13 @@ pub struct LeaveMatch<'info> {
     token_program: Program<'info, Token>,
 }
 
-// https://github.com/raindrops-protocol/raindrops/pull/27
-
 #[derive(Accounts)]
 #[instruction(args: ResizeOracleArgs)]
 pub struct ResizeOracle<'info> {
-    #[account(mut, seeds=[PREFIX.as_bytes(), payer.key().as_ref(), args.seed.as_ref()])]
-    oracle: Account<'info, WinOracle>,
+    #[account(constraint=oracle.key() == match_instance.win_oracle)]
+    oracle: UncheckedAccount<'info>,
+    #[account(mut, seeds=[PREFIX.as_bytes(), match_instance.win_oracle.as_ref()], bump=match_instance.bump)]
+    match_instance: Account<'info, Match>,
     #[account(mut)]
     payer: Signer<'info>,
     system_program: Program<'info, System>,