add gas station component

embark-ui/src/api/index.js

@@ -2,7 +2,6 @@ import axios from "axios";
 import constants from '../constants';
 
 function get(path, params, endpoint) {
-  console.log('GET ', (endpoint || constants.httpEndpoint) + path);
   return axios.get((endpoint || constants.httpEndpoint) + path, params)
     .then((response) => {
       return {response, error: null};

embark-ui/src/components/ContractFunctions.js

@@ -12,11 +12,11 @@ import {
 class ContractFunction extends Component {
   constructor(props) {
     super(props);
-    this.state = { inputs: {} };
+    this.state = {inputs: {}};
   }
 
   buttonTitle() {
-    const { method } =this.props;
+    const {method} = this.props;
     if (method.name === 'constructor') {
       return 'Deploy';
     }
@@ -24,7 +24,7 @@ class ContractFunction extends Component {
     return (method.mutability === 'view' || method.mutability === 'pure') ? 'Call' : 'Send';
   }
 
-  inputsAsArray(){
+  inputsAsArray() {
     return this.props.method.inputs
       .map(input => this.state.inputs[input.name])
       .filter(value => value);
@@ -33,7 +33,7 @@ class ContractFunction extends Component {
   handleChange(e, name) {
     let newInputs = this.state.inputs;
     newInputs[name] = e.target.value;
-    this.setState({ inputs: newInputs});
+    this.setState({inputs: newInputs});
   }
 
   handleCall(e) {
@@ -63,7 +63,7 @@ class ContractFunction extends Component {
                 {this.buttonTitle()}
               </Button>
             </Card.Body>
-            <Card.Footer>
+            {this.props.contractFunctions && this.props.contractFunctions.length > 0 && <Card.Footer>
               <List>
                 {this.props.contractFunctions.map(contractFunction => (
                   <List.Item key={contractFunction.result}>
@@ -72,7 +72,7 @@ class ContractFunction extends Component {
                   </List.Item>
                 ))}
               </List>
-            </Card.Footer>
+            </Card.Footer>}
           </Card>
         </Grid.Col>
       </Grid.Row>
@@ -106,7 +106,7 @@ const ContractFunctions = (props) => {
                                          method={method}
                                          contractFunctions={filterContractFunctions(props.contractFunctions, contractProfile.name, method.name)}
                                          contractProfile={contractProfile}
-                                         postContractFunction={props.postContractFunction} />)}
+                                         postContractFunction={props.postContractFunction}/>)}
     </Page.Content>
   );
 };

embark-ui/src/components/GasStation.js

@@ -0,0 +1,142 @@
+import PropTypes from "prop-types";
+import React, {Component} from 'react';
+import {Card, Form, Grid, StampCard} from 'tabler-react';
+
+const test = {
+  "fast": 50.0,
+  "speed": 0.998437456605574,
+  "fastest": 400.0,
+  "avgWait": 1.9,
+  "fastWait": 0.7,
+  "blockNum": 6228803,
+  "safeLowWait": 1.9,
+  "block_time": 14.326530612244898,
+  "fastestWait": 0.5,
+  "safeLow": 24.0,
+  "average": 24.0
+};
+const COLORS = {
+  good: 'green',
+  medium: 'yellow',
+  bad: 'red'
+};
+
+class GasStation extends Component {
+  constructor(props) {
+    super(props);
+    if (!props.gasStats) {
+      return console.error('gasStats is a needed Prop for GasStation');
+    }
+
+    this.state = {gasSliderIndex: 0};
+    this.formattedGasStats = GasStation.formatGasStats(props.gasStats);
+  }
+
+  static formatGasStats(gasStats) {
+    const {
+      fast, speed, fastest, avgWait, fastWait, blockNum, safeLowWait,
+      block_time, fastestWait, safeLow, average
+    } = gasStats;
+    return {
+      average: {price: average, wait: avgWait},
+      blockTime: block_time,
+      blockNum,
+      speed,
+      gasSteps: [
+        {price: safeLow, wait: safeLowWait},
+        {price: fast, wait: fastWait},
+        {price: fastest, wait: fastestWait}
+      ]
+    };
+  }
+
+  gasSliderChange(e) {
+    this.setState({
+      gasSliderIndex: e.target.value
+    });
+  }
+
+  static getColorForWait(wait) {
+    if (wait <= 1) {
+      return COLORS.good;
+    }
+    if (wait <= 3) {
+      return COLORS.medium;
+    }
+    return COLORS.bad;
+  }
+
+  static getColorForPrice(gasPrice) {
+    if (gasPrice <= 20) {
+      return COLORS.good;
+    }
+    if (gasPrice <= 40) {
+      return COLORS.medium;
+    }
+    return COLORS.bad;
+  }
+
+  render() {
+    const currentGasStep = this.formattedGasStats.gasSteps[this.state.gasSliderIndex];
+    return <Grid.Row>
+      <Grid.Col>
+        <Card>
+          <Card.Header>
+            <Card.Title>Gas Price Estimator</Card.Title>
+          </Card.Header>
+
+          <Card.Body>
+            <Grid.Row cards={true}>
+              <Grid.Col lg={6} md={6} sm={12}>
+                <StampCard icon="sliders" color={GasStation.getColorForPrice(currentGasStep.price)}>
+                  {currentGasStep.price / 10} GWei
+                </StampCard>
+              </Grid.Col>
+              <Grid.Col lg={6} md={6} sm={12}>
+                <StampCard icon="clock" color={GasStation.getColorForWait(currentGasStep.wait)}>
+                  {currentGasStep.wait} minutes
+                </StampCard>
+              </Grid.Col>
+            </Grid.Row>
+
+            <Form.Group>
+              <Form.Ratio
+                defaultValue={0}
+                max={this.formattedGasStats.gasSteps.length - 1}
+                min={0}
+                step={1}
+                value={this.state.gasSliderIndex}
+                onChange={(e) => this.gasSliderChange(e)}
+              />
+            </Form.Group>
+
+
+            <Grid.Row cards={true}>
+              <Grid.Col lg={4} md={6} sm={12}>
+                <StampCard icon="sliders" color="grey">
+                 Average Price: {this.formattedGasStats.average.price / 10} Gwei
+                </StampCard>
+              </Grid.Col>
+              <Grid.Col lg={4} md={6} sm={12}>
+                <StampCard icon="clock" color="grey">
+                  Average Wait: {this.formattedGasStats.average.wait} min
+                </StampCard>
+              </Grid.Col>
+              <Grid.Col lg={4} md={6} sm={12}>
+                <StampCard icon="square" color="grey">
+                  Last Block: {this.formattedGasStats.blockNum}
+                </StampCard>
+              </Grid.Col>
+            </Grid.Row>
+          </Card.Body>
+        </Card>
+      </Grid.Col>
+    </Grid.Row>;
+  }
+}
+
+GasStation.propTypes = {
+  gasStats: PropTypes.object.isRequired
+};
+
+export default GasStation;

embark-ui/src/containers/ContractDeploymentContainer.js

@@ -3,10 +3,15 @@ import {connect} from 'react-redux';
 import PropTypes from 'prop-types';
 import {withRouter} from 'react-router-dom';
 
-import {contractProfile as contractProfileAction, contractDeploy as contractDeployAction, ethGas as ethGasAction} from '../actions';
+import {
+  contractProfile as contractProfileAction,
+  contractDeploy as contractDeployAction,
+  ethGas as ethGasAction
+} from '../actions';
 import ContractFunctions from '../components/ContractFunctions';
 import DataWrapper from "../components/DataWrapper";
-import {getContractProfile, getContractDeploys} from "../reducers/selectors";
+import GasStation from "../components/GasStation";
+import {getContractProfile, getContractDeploys, getGasStats} from "../reducers/selectors";
 
 class ContractDeploymentContainer extends Component {
   componentDidMount() {
@@ -16,14 +21,23 @@ class ContractDeploymentContainer extends Component {
 
   render() {
     return (
-      <DataWrapper shouldRender={this.props.contractProfile !== undefined }
-                   {...this.props}
-                   render={({contractProfile, contractDeploys, postContractDeploy}) => (
-        <ContractFunctions contractProfile={contractProfile}
-                           contractFunctions={contractDeploys}
-                           onlyConstructor
-                           postContractFunction={postContractDeploy}/>
-     )} />
+      <React.Fragment>
+        <DataWrapper shouldRender={this.props.contractProfile !== undefined}
+                     {...this.props}
+                     render={({contractProfile, contractDeploys, postContractDeploy}) => (
+                       <ContractFunctions contractProfile={contractProfile}
+                                          contractFunctions={contractDeploys}
+                                          onlyConstructor
+                                          postContractFunction={postContractDeploy}/>
+                     )}/>
+
+        <DataWrapper shouldRender={this.props.gasStats !== undefined}
+                     {...this.props}
+                     render={({gasStats}) => (
+                       <GasStation gasStats={gasStats}/>
+                     )}/>
+
+      </React.Fragment>
     );
   }
 }
@@ -32,6 +46,7 @@ function mapStateToProps(state, props) {
   return {
     contractProfile: getContractProfile(state, props.match.params.contractName),
     contractDeploys: getContractDeploys(state, props.match.params.contractName),
+    gasStats: getGasStats(state),
     error: state.errorMessage,
     loading: state.loading
   };

embark-ui/src/reducers/selectors.js

@@ -84,6 +84,10 @@ export function getVersions(state) {
   return state.entities.versions;
 }
 
+export function getGasStats(state) {
+  return state.entities.gasStats[state.entities.gasStats.length - 1];
+}
+
 export function isWeb3Enabled(state) {
   return Boolean(state.entities.versions.find((version) => version.name === 'web3'));
 }