Public Functions and Their Integration

1. Pool Registration

• Function: register_pool<X, Y, Curve>(account: &signer)
• Purpose: This function allows the registration of new pools dynamically.
• Integration: Provide parameters (X, Y, Curve) during the contract’s deployment or via an admin function.

2. Add Liquidity

• Function:
  add_liquidity<X, Y, Curve>(user: address, coin_x: Coin<X>, min_coin_x_val: u64, coin_y: Coin<Y>, min_coin_y_val: u64)

• Purpose: Adds liquidity to an existing pool with specified minimum amounts for X and Y. Returns any leftover coins and minted LP tokens.

• Integration:

  • Used by liquidity providers to contribute to a pool.
  • Ensure inputs (coin_x, coin_y) match the pool’s requirements.
  • Calculate optimal amounts and validate user inputs before calling.

  3. Remove Liquidity

  • Function:
    remove_liquidity<X, Y, Curve>(user: address, lp_coins: Coin<LP<X, Y, Curve>>, min_x_out_val: u64, min_y_out_val: u64)
  • Purpose: Burns LP tokens to retrieve the underlying assets (X and Y) while enforcing minimum output amounts.

4. Swap Exact Coin for Coin

• Function:
  swap_exact_coin_for_coin<X, Y, Curve>(user: address, coin_in: Coin<X>, coin_out_min_val: u64)
• Purpose: Swaps an exact amount of input coins (X) for output coins (Y), ensuring the output is above a minimum threshold.

5. Swap Coin for Exact Coin

• Function:
  swap_coin_for_exact_coin<X, Y, Curve>(user: address, coin_max_in: Coin<X>, coin_out_val: u64)
• Purpose: Swaps a portion of input coins (X) to get an exact amount of output coins (Y), ensuring the input does not exceed a specified maximum.
• Integration:
  • Typically used for trades where the output amount is critical (e.g., paying an exact bill).
  • Users should be informed about potential slippage.