MyCrypto/common/reducers/swap/index.js

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// @flow
import type { SwapAction } from 'actions/swapTypes';
import without from 'lodash/without';
import {
buildDestinationAmount,
buildDestinationKind,
buildOriginKind
} from './helpers';
export const ALL_CRYPTO_KIND_OPTIONS = ['BTC', 'ETH', 'REP'];
const DEFAULT_ORIGIN_KIND = 'BTC';
const DEFAULT_DESTINATION_KIND = 'ETH';
type State = {
originAmount: ?number,
destinationAmount: ?number,
originKind: string,
destinationKind: string,
destinationKindOptions: Array<string>,
originKindOptions: Array<string>,
step: number,
bityRates: Object,
destinationAddress: string,
isFetchingRates: ?boolean,
secondsRemaining: ?number,
outputTx: ?string,
isPostingOrder: ?boolean,
orderStatus: ?string,
orderTimestampCreatedISOString: ?string,
paymentAddress: ?string,
validFor: ?number,
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orderId: ?string
};
export const INITIAL_STATE: State = {
originAmount: null,
destinationAmount: null,
originKind: DEFAULT_ORIGIN_KIND,
destinationKind: DEFAULT_DESTINATION_KIND,
destinationKindOptions: without(ALL_CRYPTO_KIND_OPTIONS, DEFAULT_ORIGIN_KIND),
originKindOptions: without(ALL_CRYPTO_KIND_OPTIONS, 'REP'),
step: 1,
bityRates: {},
destinationAddress: '',
bityOrder: {},
isFetchingRates: null,
secondsRemaining: null,
outputTx: null,
isPostingOrder: false,
orderStatus: null,
orderTimestampCreatedISOString: null,
paymentAddress: null,
validFor: null,
orderId: null
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};
export function swap(state: State = INITIAL_STATE, action: SwapAction) {
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switch (action.type) {
case 'SWAP_ORIGIN_KIND': {
const newDestinationKind = buildDestinationKind(
action.value,
state.destinationKind
);
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return {
...state,
originKind: action.value,
destinationKind: newDestinationKind,
destinationKindOptions: without(ALL_CRYPTO_KIND_OPTIONS, action.value),
destinationAmount: buildDestinationAmount(
state.originAmount,
action.value,
newDestinationKind,
state.bityRates
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)
};
}
case 'SWAP_DESTINATION_KIND': {
const newOriginKind = buildOriginKind(state.originKind, action.value);
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return {
...state,
originKind: newOriginKind,
destinationKind: action.value,
destinationAmount: buildDestinationAmount(
state.originAmount,
state.originKind,
action.value,
state.bityRates
)
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};
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}
case 'SWAP_ORIGIN_AMOUNT':
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return {
...state,
originAmount: action.value
};
case 'SWAP_DESTINATION_AMOUNT':
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return {
...state,
destinationAmount: action.value
};
case 'SWAP_LOAD_BITY_RATES_SUCCEEDED':
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return {
...state,
bityRates: {
...state.bityRates,
...action.value
},
isFetchingRates: false
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};
case 'SWAP_STEP': {
return {
...state,
step: action.value
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};
}
case 'SWAP_DESTINATION_ADDRESS':
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return {
...state,
destinationAddress: action.value
};
case 'SWAP_RESTART':
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return {
...INITIAL_STATE,
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bityRates: state.bityRates
};
case 'SWAP_ORDER_CREATE_REQUESTED':
return {
...state,
isPostingOrder: true
};
case 'SWAP_ORDER_CREATE_FAILED':
return {
...state,
isPostingOrder: false
};
// TODO - fix bad naming
case 'SWAP_BITY_ORDER_CREATE_SUCCEEDED':
return {
...state,
bityOrder: {
...action.payload
},
isPostingOrder: false,
originAmount: parseFloat(action.payload.input.amount),
destinationAmount: parseFloat(action.payload.output.amount),
secondsRemaining: action.payload.validFor, // will get update
validFor: action.payload.validFor, // to build from local storage
orderTimestampCreatedISOString: action.payload.timestamp_created,
paymentAddress: action.payload.payment_address,
orderStatus: action.payload.status,
orderId: action.payload.id
};
case 'SWAP_BITY_ORDER_STATUS_SUCCEEDED':
return {
...state,
outputTx: action.payload.output.reference,
orderStatus:
action.payload.output.status === 'FILL'
? action.payload.output.status
: action.payload.input.status
};
case 'SWAP_ORDER_TIME':
return {
...state,
secondsRemaining: action.value
};
case 'SWAP_LOAD_BITY_RATES_REQUESTED':
return {
...state,
isFetchingRates: true
};
case 'SWAP_STOP_LOAD_BITY_RATES':
return {
...state,
isFetchingRates: false
};
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default:
return state;
}
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}