feat(www): custom hubspot submission for newsletter

www/src/components/email-capture-form.js

@@ -1,9 +1,182 @@
 import React from "react"
 import { rhythm, options } from "../utils/typography"
-import { colors } from "../utils/presets"
-import HubspotForm from "./hubspot-form"
+import presets, { colors } from "../utils/presets"
+import hex2rgba from "hex2rgba"
+import { formInput } from "../utils/form-styles"
+import { buttonStyles } from "../utils/styles"
+
+const Label = props => (
+  <label>
+    {props.children}
+    {props.isRequired && (
+      <span
+        css={{
+          color: `red`,
+          "&:before": {
+            content: `'*'`,
+            color: colors.warning,
+          },
+        }}
+      />
+    )}
+  </label>
+)
+
+const SingleLineInput = React.forwardRef((props, ref) => (
+  <input
+    ref={ref}
+    css={{
+      ...formInput,
+      width: `100% !important`,
+      ":focus": {
+        borderColor: colors.gatsby,
+        outline: 0,
+        boxShadow: `0 0 0 0.2rem ${hex2rgba(colors.lilac, 0.25)}`,
+      },
+    }}
+    {...props}
+  />
+))
+
+const ErrorMessage = ({ children }) => (
+  <div
+    css={{
+      // dunno where this is comming from - just straight copied li style from dev tools
+      marginBottom: `calc(1.05rem / 2)`,
+      color: colors.warning,
+      fontSize: rhythm(1 / 2),
+    }}
+  >
+    {children}
+  </div>
+)
+
+class Form extends React.Component {
+  constructor(props) {
+    super(props)
+
+    this.onSubmit = this.onSubmit.bind(this)
+
+    // let's use uncontrolled components https://reactjs.org/docs/uncontrolled-components.html
+    this.email = React.createRef()
+  }
+
+  state = {
+    errorMessage: ``,
+    fieldErrors: {},
+  }
+
+  onSubmit(e) {
+    e.preventDefault()
+
+    // validation here or use Formik or something like that
+    // we can also rely on server side validation like I do right now
+
+    const { portalId, formId, sfdcCampaignId } = this.props
+    const url = `https://api.hsforms.com/submissions/v3/integration/submit/${portalId}/${formId}`
+    const data = {
+      fields: [
+        {
+          name: `email`,
+          value: this.email.current.value,
+        },
+      ],
+      context: {
+        pageUri: window.location.href,
+        pageName: document.title,
+      },
+    }
+
+    if (sfdcCampaignId) {
+      data.context.sfdcCampaignId = sfdcCampaignId
+    }
+
+    const xhr = new XMLHttpRequest()
+    xhr.open(`POST`, url, false)
+    xhr.setRequestHeader(`Content-Type`, `application/json`)
+
+    xhr.onreadystatechange = () => {
+      if (xhr.readyState == 4) {
+        const response = JSON.parse(xhr.responseText)
+        if (xhr.status == 200) {
+          // https://developers.hubspot.com/docs/methods/forms/submit_form_ajax
+          // docs mention response should "thankYouMessage" field,
+          // but I get inlineMessage in my testing
+          this.props.onSuccess(
+            response.thankYouMessage || response.inlineMessage
+          )
+        } else {
+          let errorMessage,
+            fieldErrors = {}
+          if (response.errors) {
+            // {"message":"Error in 'fields.email'. Invalid email address","errorType":"INVALID_EMAIL"}
+            // {"message":"Error in 'fields.email'. Required field 'email' is missing","errorType":"REQUIRED_FIELD"}
+
+            const errorRe = /^Error in 'fields.([^']+)'. (.+)$/
+            response.errors.map(error => {
+              const [, fieldName, message] = errorRe.exec(error.message)
+              fieldErrors[fieldName] = message
+            })
+
+            // hubspot use "The request is not valid" message, so probably better use custom one
+            errorMessage = `Errors in the form`
+          } else {
+            errorMessage = response.message
+          }
+
+          this.setState({ fieldErrors, errorMessage })
+        }
+      }
+    }
+
+    xhr.send(JSON.stringify(data))
+  }
+
+  render() {
+    return (
+      <form onSubmit={this.onSubmit}>
+        <div
+          css={{
+            paddingBottom: `20px`,
+          }}
+        >
+          <Label isRequired for="email">
+            Email
+          </Label>
+          <SingleLineInput
+            name="email"
+            type="email"
+            required
+            autoComplete="email"
+            ref={this.email}
+          />
+          {this.state.fieldErrors.email && (
+            <ErrorMessage>{this.state.fieldErrors.email}</ErrorMessage>
+          )}
+        </div>
+        {this.state.errorMessage && (
+          <ErrorMessage>{this.state.errorMessage}</ErrorMessage>
+        )}
+        <input type="submit" value="Subscribe" css={buttonStyles.default} />
+      </form>
+    )
+  }
+}
 
 class EmailCaptureForm extends React.Component {
+  constructor(props) {
+    super(props)
+    this.onSuccess = this.onSuccess.bind(this)
+  }
+
+  state = {
+    successMessage: ``,
+  }
+
+  onSuccess(successMessage) {
+    this.setState({ successMessage })
+  }
+
   render() {
     const { signupMessage, overrideCSS } = this.props
 
@@ -19,11 +192,26 @@ class EmailCaptureForm extends React.Component {
       >
         <div>
           <p>{signupMessage}</p>
-          <HubspotForm
-            portalId="4731712"
-            formId="089352d8-a617-4cba-ba46-6e52de5b6a1d"
-            sfdcCampaignId="701f4000000Us7pAAC"
-          />
+          <div
+            css={{
+              backgroundColor: colors.ui.light,
+              borderRadius: presets.radius,
+              color: colors.gatsby,
+              fontFamily: options.headerFontFamily.join(`,`),
+              padding: `15px`,
+            }}
+          >
+            {this.state.successMessage ? (
+              <p>{this.state.successMessage}</p>
+            ) : (
+              <Form
+                onSuccess={this.onSuccess}
+                portalId="4731712"
+                formId="089352d8-a617-4cba-ba46-6e52de5b6a1d"
+                sfdcCampaignId="701f4000000Us7pAAC"
+              />
+            )}
+          </div>
         </div>
       </div>
     )