Install the development environment

1. Install Rust development environment (see [https://www.rust-lang.org/tools/install]).
2. Install Solana SDK and other tools (see [https://docs.solana.com/ru/cli/install-solana-cli-tools]).
3. Install NodeJs.

Build and deploy the program emotion-user-account

1. From the folder /user-account/program/, run cargo build-bpf
2. (optional) From the folder /user-account/program/, run cargo test-bpf to make sure that all the automatic tests passed successfully
3. Make sure you have enough balance to deploy the program. For this purpose, run solana balance. NOTE: If you're in a dev, or test mode you can refill your balance running solana airdrop 1 as many times as you need.
4. To deploy this program, run solana program deploy <an absolute path to the local repository>/user-account/program/target/deploy/emotion_user_account.so. Save the program id for further use.

Configure the program emotion-user-account and the JS client

1. To create a new token run spl-token create-token. Save the token address for further use.
2. Open and edit /user-account/js/config.ts. Set the values for PROGRAM_ID and MINT_ID variables to the program id and token address correspondingly (see the recent steps).
3. From the folder /user-account/js/, run npm install
4. Create an associated token account for your current wallet with this command spl-token create-account <TOKEN_ADDRESS>
5. Mint the required amount of tokens to your wallet with this command spl-token mint <TOKEN_ADDRESS> <AMOUNT>.
6. Create a source account for the program on behalf of your wallet. A source account serves as the custodial for all the users' tokens and are used to withdraw the tokens from the program to the users' wallets. To create this account, run the command npm run create-account 0 from the folder /user-account/js/. Save the source account address for further use.
7. Top-up the balance of the source account. To do so, you have to transfer the tokens from your current wallet to this account. It can be done with this command spl-token transfer <TOKEN_ADDRESS> <AMOUNT> <SOURCE_ACCOUNT_ADDRESS> --fund-recipient.

Run the program instructions

The program supports the following instructions:

• Create a new user account npm run create-account <user_id>
• Deposit npm run deposit-account <user_id> <amount>
• Withdraw npm run withdraw-account <user_id> <amount>
• Transfer npm run transfer <sender_id> <recipient_id> <amount>
• Block npm run block-account <user_id> <amount>
• Unblock npm run unblock-account <user_id> <amount>