import { PublicKey } from '@solana/web3.js';
import { RpcFactory } from './rpc';
import { Idl } from './idl';
import Coder from './coder';
import { Rpcs, Ixs, Accounts } from './rpc';

/**
 * Program is the IDL deserialized representation of a Solana program.
 */
export class Program {
	/**
	 * Address of the program.
	 */
	readonly programId: PublicKey;

	/**
	 * IDL describing this program's interface.
	 */
	readonly idl: Idl;

	/**
	 * Async functions to invoke instructions against a Solana priogram running
	 * on a cluster.
	 */
	readonly rpc: Rpcs;

	/**
	 * Async functions to fetch deserialized program accounts from a cluster.
	 */
	readonly account: Accounts;

	/**
	 * Functions to build `TransactionInstruction` objects.
	 */
	readonly instruction: Ixs;

	public constructor(idl: Idl, programId: PublicKey) {
		this.idl = idl;
		this.programId = programId;

		// Build the serializer.
		const coder = new Coder(idl);

		// Build the dynamic RPC functions.
		const [rpcs, ixs, accounts] = RpcFactory.build(idl, coder, programId);
		this.rpc = rpcs;
		this.instruction = ixs;
		this.account = accounts;
	}
}