1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
import { AssetBuyer, BuyQuote } from '@0x/asset-buyer';
import { AssetProxyId, ObjectMap } from '@0x/types';
import { BigNumber } from '@0x/utils';
import { Web3Wrapper } from '@0x/web3-wrapper';
import * as _ from 'lodash';
import { assetMetaDataMap } from '../data/asset_meta_data_map';
import {
Asset,
AssetMetaData,
AsyncProcessState,
DisplayStatus,
Network,
OrderProcessState,
OrderProgress,
OrderState,
} from '../types';
import { assetUtils } from '../util/asset';
import { BigNumberInput } from '../util/big_number_input';
import { Action, ActionTypes } from './actions';
export interface State {
network: Network;
assetBuyer?: AssetBuyer;
assetMetaDataMap: ObjectMap<AssetMetaData>;
selectedAsset?: Asset;
selectedAssetAmount?: BigNumberInput;
buyOrderState: OrderState;
ethUsdPrice?: BigNumber;
latestBuyQuote?: BuyQuote;
quoteRequestState: AsyncProcessState;
latestErrorMessage?: string;
latestErrorDisplayStatus: DisplayStatus;
orderProgress?: OrderProgress;
}
export const INITIAL_STATE: State = {
network: Network.Mainnet,
selectedAssetAmount: undefined,
assetMetaDataMap,
buyOrderState: { processState: OrderProcessState.NONE },
ethUsdPrice: undefined,
latestBuyQuote: undefined,
latestErrorMessage: undefined,
latestErrorDisplayStatus: DisplayStatus.Hidden,
quoteRequestState: AsyncProcessState.NONE,
};
export const reducer = (state: State = INITIAL_STATE, action: Action): State => {
switch (action.type) {
case ActionTypes.UPDATE_ETH_USD_PRICE:
return {
...state,
ethUsdPrice: action.data,
};
case ActionTypes.UPDATE_SELECTED_ASSET_AMOUNT:
return {
...state,
selectedAssetAmount: action.data,
};
case ActionTypes.UPDATE_LATEST_BUY_QUOTE:
const newBuyQuoteIfExists = action.data;
const shouldUpdate =
_.isUndefined(newBuyQuoteIfExists) || doesBuyQuoteMatchState(newBuyQuoteIfExists, state);
if (shouldUpdate) {
return {
...state,
latestBuyQuote: newBuyQuoteIfExists,
quoteRequestState: AsyncProcessState.SUCCESS,
};
} else {
return state;
}
case ActionTypes.SET_QUOTE_REQUEST_STATE_PENDING:
return {
...state,
latestBuyQuote: undefined,
quoteRequestState: AsyncProcessState.PENDING,
};
case ActionTypes.SET_QUOTE_REQUEST_STATE_FAILURE:
return {
...state,
latestBuyQuote: undefined,
quoteRequestState: AsyncProcessState.FAILURE,
};
case ActionTypes.UPDATE_BUY_ORDER_STATE:
return {
...state,
buyOrderState: action.data,
};
case ActionTypes.SET_ERROR_MESSAGE:
return {
...state,
latestErrorMessage: action.data,
latestErrorDisplayStatus: DisplayStatus.Present,
};
case ActionTypes.HIDE_ERROR:
return {
...state,
latestErrorDisplayStatus: DisplayStatus.Hidden,
};
case ActionTypes.CLEAR_ERROR:
return {
...state,
latestErrorMessage: undefined,
latestErrorDisplayStatus: DisplayStatus.Hidden,
};
case ActionTypes.UPDATE_SELECTED_ASSET:
const newSelectedAssetData = action.data;
let newSelectedAsset: Asset | undefined;
if (!_.isUndefined(newSelectedAssetData)) {
newSelectedAsset = assetUtils.createAssetFromAssetData(
newSelectedAssetData,
state.assetMetaDataMap,
state.network,
);
}
return {
...state,
selectedAsset: newSelectedAsset,
};
case ActionTypes.UPDATE_ORDER_PROGRESS_PERCENTAGE:
return {
...state,
orderProgress: { percentageDone: action.data },
};
case ActionTypes.RESET_AMOUNT:
return {
...state,
latestBuyQuote: undefined,
quoteRequestState: AsyncProcessState.NONE,
buyOrderState: { processState: OrderProcessState.NONE },
selectedAssetAmount: undefined,
};
default:
return state;
}
};
const doesBuyQuoteMatchState = (buyQuote: BuyQuote, state: State): boolean => {
const selectedAssetIfExists = state.selectedAsset;
const selectedAssetAmountIfExists = state.selectedAssetAmount;
// if no selectedAsset or selectedAssetAmount exists on the current state, return false
if (_.isUndefined(selectedAssetIfExists) || _.isUndefined(selectedAssetAmountIfExists)) {
return false;
}
// if buyQuote's assetData does not match that of the current selected asset, return false
if (selectedAssetIfExists.assetData !== buyQuote.assetData) {
return false;
}
// if ERC20 and buyQuote's assetBuyAmount does not match selectedAssetAmount, return false
// if ERC721, return true
const selectedAssetMetaData = selectedAssetIfExists.metaData;
if (selectedAssetMetaData.assetProxyId === AssetProxyId.ERC20) {
const selectedAssetAmountBaseUnits = Web3Wrapper.toBaseUnitAmount(
selectedAssetAmountIfExists,
selectedAssetMetaData.decimals,
);
const doesAssetAmountMatch = selectedAssetAmountBaseUnits.eq(buyQuote.assetBuyAmount);
return doesAssetAmountMatch;
} else {
return true;
}
};
|
