import { ParsedTarget, RawTarget } from "@xmr-core/xmr-transaction";
import { ERR } from "./errors";
import { possibleOAAddress } from "./open_alias_lite";
import { decode_address, NetType } from "@xmr-core/xmr-crypto-utils";
import { parseMoney } from "@xmr-core/xmr-money";

/**
 * @description Map through the provided targets and normalize each address/amount pair
 *
 * Addresses are checked to see if they may belong to an OpenAlias address, and rejected if so.
 * Then they are validated by attempting to decode them.
 *
 * Amounts are attempted to be parsed from string value to BigInt value
 *
 * The validated address / parsed amount pairs are then returned
 *
 * @export
 * @param {RawTarget[]} targetsToParse
 * @param {NetType} nettype
 * @returns {ParsedTarget[]}
 */
export function parseTargets(
	targetsToParse: RawTarget[],
	nettype: NetType,
): ParsedTarget[] {
	return targetsToParse.map(({ address, amount }) => {
		if (!address && !amount) {
			throw ERR.PARSE_TRGT.EMPTY;
		}

		if (possibleOAAddress(address)) {
			throw ERR.PARSE_TRGT.OA_RES;
		}
		const amountStr = amount.toString();

		try {
			decode_address(address, nettype);
		} catch (e) {
			throw ERR.PARSE_TRGT.decodeAddress(address, e);
		}

		try {
			const parsedAmount = parseMoney(amountStr);
			return { address, amount: parsedAmount };
		} catch (e) {
			throw ERR.PARSE_TRGT.amount(amountStr, e);
		}
	});
}