join check

Anchor.toml

@@ -5,7 +5,7 @@ resolution = true
 skip-lint = false
 
 [programs.localnet]
-bets = "HxsDuhD7wcPxcMsrYdteMYxkffuwff8HoxhZ7NuFtM37"
+bets = "JAf3ZkQ469okXAzA6BKJeKBb9ZkCtZanULaUsapskoyn"
 
 [registry]
 url = "https://api.apr.dev"

programs/bets/src/error.rs

@@ -11,10 +11,8 @@ pub enum ErrorCode {
 pub enum BettingError {
     #[msg("Bet is not filled yet!")]
     BetNotFilled,
-}
-
-#[error_code]
-pub enum BetError {
+    #[msg("Bet is already filled")]
+    BetAlreadyFilled,
     #[msg("The winner must be either the owner or the joiner of the bet.")]
     InvalidWinner,
 }

programs/bets/src/instructions/close_bet.rs

@@ -1,11 +1,11 @@
 use anchor_lang::prelude::*;
-use crate::{error::BetError, *};
+use crate::{error::BettingError, *};
 
 pub fn close(ctx: Context<CloseBet>, winner:Pubkey)->Result<()>{
     let bet_vault = &mut ctx.accounts.bet_vault;
     require!(
         bet_vault.owner == winner || bet_vault.joiner == winner,
-        BetError::InvalidWinner
+        BettingError::InvalidWinner
     );
 
     let bets_list = &mut ctx.accounts.bets_list;

programs/bets/src/instructions/create_bet.rs

@@ -29,7 +29,7 @@ pub fn create(ctx: Context<CreateBet>, wager: u64, user_id:String, game_id:Strin
 }
 
 #[derive(Accounts)]
-#[instruction(wager: u64, game_id: String, _nonce:u64)]
+#[instruction(wager: u64,user_id:String, game_id: String, _nonce:u64)]
 pub struct CreateBet<'info> {
     #[account(mut)]
     pub payer: Signer<'info>,

programs/bets/src/instructions/join_bet.rs

@@ -1,8 +1,12 @@
 use anchor_lang::prelude::*;
-use crate::*;
+use crate::{error::BettingError, *};
 
 pub fn join(ctx: Context<JoinBet>,user_id:String, _game_id:String) ->Result<()>{
     let bet_vault = &mut ctx.accounts.bet_vault;
+    require!(
+        bet_vault.joiner == Pubkey::default(),
+        BettingError::BetAlreadyFilled  
+    );
     let payer= &ctx.accounts.payer;
 
     let ix = anchor_lang::solana_program::system_instruction::transfer(

programs/bets/src/lib.rs

@@ -9,7 +9,7 @@ pub use constants::*;
 pub use instructions::*;
 pub use state::*;
 
-declare_id!("HxsDuhD7wcPxcMsrYdteMYxkffuwff8HoxhZ7NuFtM37");
+declare_id!("JAf3ZkQ469okXAzA6BKJeKBb9ZkCtZanULaUsapskoyn");
 
 #[program]
 pub mod bets {