Add Liquidity

Alice wants to provide liquidity to a USDT/WTON pool. When Alice sends USDT and WTON to the Router, liquidity is added and Pool Tokens are issued and delivered to Alice.

1. Alice Wallet sends a transfer message to Alice's USDT Wallet.

   1. The recipient is the Router, and the message contains details of the liquidity provision.

2. An internal_transfer message is sent from Alice's USDT Wallet to the Router's USDT Wallet.

3. A transfer_notification message is sent from the Router's USDT Wallet to the Router.

4. A provide_lp message is sent from the Router to the Pool. This message contains details about which tokens were received, their amount, and the sender.

5. An add_liquidity message is sent from the Pool to Alice's LPBuilder.

   1. An LPBuilder is created for each Account and Pool combination.

6. If Alice has both USDT and WTON, a cb_add_liquidity message is sent from Alice's USDT/WTON LPBuilder to the Pool.

   1. The message flow ends after the first transaction.

   2. The cb_add_liquidity message is sent in the last token transfer transaction.

7. Upon receiving the cb_add_liquidity message, the Pool sends an internal_transfer message to Alice's Pool Token Wallet and mints the Pool Token