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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-09-26 20:55:52 +0800 |
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committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-09-26 20:55:52 +0800 |
commit | 5d73eebf6abe52763ea6984f85102157abea5b6c (patch) | |
tree | 8cec1c58fe22ba62d979dbc1c6ff366e81985b8d /packages/asset-buyer/src/utils/order_utils.ts | |
parent | f3deabccf4e6caec57351a09f82b3f786122b5ea (diff) | |
parent | 13aa98f0f3431e4ea4db07794a06304c237e8d45 (diff) | |
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Merge branch 'development' into feature/ts-ethers
Diffstat (limited to 'packages/asset-buyer/src/utils/order_utils.ts')
-rw-r--r-- | packages/asset-buyer/src/utils/order_utils.ts | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/packages/asset-buyer/src/utils/order_utils.ts b/packages/asset-buyer/src/utils/order_utils.ts new file mode 100644 index 000000000..62166eb76 --- /dev/null +++ b/packages/asset-buyer/src/utils/order_utils.ts @@ -0,0 +1,30 @@ +import { SignedOrder } from '@0xproject/types'; +import { BigNumber } from '@0xproject/utils'; + +import { constants } from '../constants'; + +export const orderUtils = { + isOrderExpired(order: SignedOrder): boolean { + return orderUtils.willOrderExpire(order, 0); + }, + willOrderExpire(order: SignedOrder, secondsFromNow: number): boolean { + const millisecondsInSecond = 1000; + const currentUnixTimestampSec = new BigNumber(Date.now() / millisecondsInSecond).round(); + return order.expirationTimeSeconds.lessThan(currentUnixTimestampSec.minus(secondsFromNow)); + }, + calculateRemainingMakerAssetAmount(order: SignedOrder, remainingTakerAssetAmount: BigNumber): BigNumber { + if (remainingTakerAssetAmount.eq(0)) { + return constants.ZERO_AMOUNT; + } + return remainingTakerAssetAmount.times(order.makerAssetAmount).dividedToIntegerBy(order.takerAssetAmount); + }, + calculateRemainingTakerAssetAmount(order: SignedOrder, remainingMakerAssetAmount: BigNumber): BigNumber { + if (remainingMakerAssetAmount.eq(0)) { + return constants.ZERO_AMOUNT; + } + return remainingMakerAssetAmount.times(order.takerAssetAmount).dividedToIntegerBy(order.makerAssetAmount); + }, + isOpenOrder(order: SignedOrder): boolean { + return order.takerAddress === constants.NULL_ADDRESS; + }, +}; |