/**
 * Copyright (c) TonTech.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

import { SwapError, SwapErrorCode } from '@ton/appkit';

import { mapDefiError } from '../../../utils/map-defi-error';

/**
 * Map a thrown swap error to an i18n key. Tries swap-specific codes first, falls back to the
 * shared {@link mapDefiError} for base DeFi codes, and finally to the caller-provided
 * {@link fallback} (defaults to `swap.quoteError`, but send-time callers should pass
 * `swap.sendFailed`).
 */
export const mapSwapError = (error: unknown, fallback: string = 'swap.quoteError'): string => {
    if (error instanceof SwapError) {
        switch (error.code) {
            case SwapErrorCode.InvalidQuote:
                return 'swap.invalidQuote';
            case SwapErrorCode.InsufficientLiquidity:
                return 'swap.insufficientLiquidity';
            case SwapErrorCode.QuoteExpired:
                return 'swap.quoteExpired';
            case SwapErrorCode.BuildTxFailed:
                return 'swap.buildTxFailed';
        }
    }

    return mapDefiError(error) ?? fallback;
};