From 8ad8c506748c78782c953216c3571657309cb9d2 Mon Sep 17 00:00:00 2001
From: Drew Powers <drew@pow.rs>
Date: Wed, 20 Mar 2019 06:55:03 -0600
Subject: [PATCH] In-progress: use custom events for inputs

---
 .../custom-plan-feature.tsx                   | 11 +++--
 src/components/custom-plan-feature/readme.md  | 11 ++---
 src/components/mf-select/mf-select.tsx        | 18 +++++--
 src/components/mf-select/readme.md            |  9 +++-
 src/components/mf-slider/mf-slider.tsx        | 25 ++++++----
 src/components/mf-slider/readme.md            |  9 +++-
 src/components/mf-toggle/mf-toggle.tsx        | 19 ++++++--
 src/components/mf-toggle/readme.md            |  8 ++++
 src/components/plan-details/plan-details.tsx  | 47 ++++++++++++++++---
 src/global/events.ts                          |  1 +
 tsconfig.json                                 |  2 +-
 11 files changed, 120 insertions(+), 40 deletions(-)
 create mode 100644 src/global/events.ts

diff --git a/src/components/custom-plan-feature/custom-plan-feature.tsx b/src/components/custom-plan-feature/custom-plan-feature.tsx
index 558f34a93..1bdb55409 100644
--- a/src/components/custom-plan-feature/custom-plan-feature.tsx
+++ b/src/components/custom-plan-feature/custom-plan-feature.tsx
@@ -1,4 +1,5 @@
 import { Component, Prop, FunctionalComponent } from '@stencil/core';
+import { FEATURE_CHANGE } from '../../global/events';
 import { $ } from '../../utils/currency';
 
 const STRING = 'string';
@@ -49,11 +50,11 @@ const Toggle: FunctionalComponent<ToggleProps> = () => {
 })
 export class CustomPlanFeature {
   @Prop() feature: Catalog.ExpandedFeature;
-  @Prop() selectedValue: string;
+  @Prop() selectedValue?: string;
   @Prop() planLabel: string = '';
 
   get featureID() {
-    return `plan-${this.planLabel}-feature-${this.feature.label}`;
+    return this.feature.label;
   }
 
   render() {
@@ -61,11 +62,11 @@ export class CustomPlanFeature {
 
     switch (this.feature.type) {
       case STRING:
-        return <Dropdown name={this.featureID} values={values} />;
+        return <Dropdown name={this.featureID} values={values} event-name={FEATURE_CHANGE} />;
       case NUMBER:
-        return <Slider name={this.featureID} value={value} />;
+        return <Slider name={this.featureID} value={value} event-name={FEATURE_CHANGE} />;
       case BOOLEAN:
-        return <Toggle name={this.featureID} values={values} />;
+        return <Toggle name={this.featureID} values={values} event-name={FEATURE_CHANGE} />;
       default:
         return null;
     }
diff --git a/src/components/custom-plan-feature/readme.md b/src/components/custom-plan-feature/readme.md
index 197d15750..8afd41eab 100644
--- a/src/components/custom-plan-feature/readme.md
+++ b/src/components/custom-plan-feature/readme.md
@@ -7,12 +7,11 @@
 
 ## Properties
 
-| Property        | Attribute        | Description | Type                                     | Default     |
-| --------------- | ---------------- | ----------- | ---------------------------------------- | ----------- |
-| `feature`       | --               |             | `ExpandedFeature`                        | `undefined` |
-| `planLabel`     | `plan-label`     |             | `string`                                 | `''`        |
-| `selectedValue` | `selected-value` |             | `string`                                 | `undefined` |
-| `setFeature`    | --               |             | `(label: string, value: string) => void` | `undefined` |
+| Property        | Attribute        | Description | Type              | Default     |
+| --------------- | ---------------- | ----------- | ----------------- | ----------- |
+| `feature`       | --               |             | `ExpandedFeature` | `undefined` |
+| `planLabel`     | `plan-label`     |             | `string`          | `''`        |
+| `selectedValue` | `selected-value` |             | `string`          | `undefined` |
 
 
 ----------------------------------------------
diff --git a/src/components/mf-select/mf-select.tsx b/src/components/mf-select/mf-select.tsx
index 3304daae6..2793583d5 100644
--- a/src/components/mf-select/mf-select.tsx
+++ b/src/components/mf-select/mf-select.tsx
@@ -1,4 +1,4 @@
-import { Component, Prop } from '@stencil/core';
+import { Component, Prop, Event, EventEmitter } from '@stencil/core';
 import { Option, Value } from 'types/Select';
 
 @Component({
@@ -7,15 +7,23 @@ import { Option, Value } from 'types/Select';
   scoped: true,
 })
 export class MfSelect {
-  @Prop() options: Option[] = [];
-  @Prop() selectedValue?: Value;
+  @Prop() eventName?: string;
   @Prop() name: string;
+  @Prop() options: Option[] = [];
   @Prop() required?: boolean;
-  @Prop() onChange: (e: UIEvent) => void;
+  @Prop() selectedValue?: Value;
+  @Event({ eventName: this.eventName }) onChange: EventEmitter;
+
+  private onChangeHandler(e: Event) {
+    console.log('changed');
+    if (!e.target || !this.eventName) return;
+    const el = e.target as HTMLSelectElement;
+    this.onChange.emit({ name: el.getAttribute('name'), value: el.value });
+  }
 
   render() {
     return (
-      <select name={this.name} required={this.required} onChange={this.onChange}>
+      <select name={this.name} required={this.required} onChange={this.onChangeHandler}>
         {this.options.map(({ label, value }) => (
           <option value={value} selected={this.selectedValue === value}>
             {label}
diff --git a/src/components/mf-select/readme.md b/src/components/mf-select/readme.md
index c2bdf6a12..4d827311d 100644
--- a/src/components/mf-select/readme.md
+++ b/src/components/mf-select/readme.md
@@ -9,13 +9,20 @@
 
 | Property        | Attribute        | Description | Type                            | Default     |
 | --------------- | ---------------- | ----------- | ------------------------------- | ----------- |
+| `eventName`     | `event-name`     |             | `string \| undefined`           | `undefined` |
 | `name`          | `name`           |             | `string`                        | `undefined` |
-| `onChange`      | --               |             | `(e: UIEvent) => void`          | `undefined` |
 | `options`       | --               |             | `Option[]`                      | `[]`        |
 | `required`      | `required`       |             | `boolean \| undefined`          | `undefined` |
 | `selectedValue` | `selected-value` |             | `number \| string \| undefined` | `undefined` |
 
 
+## Events
+
+| Event      | Description | Type                |
+| ---------- | ----------- | ------------------- |
+| `onChange` |             | `CustomEvent<void>` |
+
+
 ----------------------------------------------
 
 *Built with [StencilJS](https://stenciljs.com/)*
diff --git a/src/components/mf-slider/mf-slider.tsx b/src/components/mf-slider/mf-slider.tsx
index 0b13bb8f3..6f24fb37d 100644
--- a/src/components/mf-slider/mf-slider.tsx
+++ b/src/components/mf-slider/mf-slider.tsx
@@ -1,4 +1,4 @@
-import { Component, Prop } from '@stencil/core';
+import { Component, Prop, Event, EventEmitter } from '@stencil/core';
 
 @Component({
   tag: 'mf-slider',
@@ -6,14 +6,21 @@ import { Component, Prop } from '@stencil/core';
   scoped: true,
 })
 export class MfSlider {
-  @Prop() min: number = 0;
-  @Prop() max: number;
+  @Prop() error?: string;
+  @Prop() eventName?: string;
   @Prop() increment: number = 1;
+  @Prop() max: number;
+  @Prop() min: number = 0;
   @Prop() name: string = '';
   @Prop() selectedValue: number;
   @Prop() suffix: string = '';
-  @Prop() onChange: (e: Event) => void;
-  @Prop() error?: string;
+  @Event({ eventName: this.eventName }) onChange: EventEmitter;
+
+  private onChangeHandler(e: Event) {
+    if (!e.target || !this.eventName) return;
+    const el = e.target as HTMLInputElement;
+    this.onChange.emit({ name: el.getAttribute('name'), value: parseInt(el.value, 10) });
+  }
 
   get positionCount() {
     return (this.max - this.min) / this.increment;
@@ -31,8 +38,6 @@ export class MfSlider {
               min={this.min}
               step={this.increment}
               value={value}
-              onInput={e => this.onChange(e)}
-              onChange={e => this.onChange(e)}
               style={{
                 '--slider-position': `${value / (this.max - this.min)}%`,
               }}
@@ -49,13 +54,13 @@ export class MfSlider {
         )}
         <div class="number-wrapper">
           <input
-            type="number"
             max={this.max}
             min={this.min}
-            value={value}
-            onChange={e => this.onChange(e)}
+            onChange={this.onChangeHandler}
             required
             step={this.increment}
+            type="number"
+            value={value}
           />
           <div class="display-units">{this.suffix}</div>
         </div>
diff --git a/src/components/mf-slider/readme.md b/src/components/mf-slider/readme.md
index e2db6eafd..14abde81f 100644
--- a/src/components/mf-slider/readme.md
+++ b/src/components/mf-slider/readme.md
@@ -10,15 +10,22 @@
 | Property        | Attribute        | Description | Type                  | Default     |
 | --------------- | ---------------- | ----------- | --------------------- | ----------- |
 | `error`         | `error`          |             | `string \| undefined` | `undefined` |
+| `eventName`     | `event-name`     |             | `string \| undefined` | `undefined` |
 | `increment`     | `increment`      |             | `number`              | `1`         |
 | `max`           | `max`            |             | `number`              | `undefined` |
 | `min`           | `min`            |             | `number`              | `0`         |
 | `name`          | `name`           |             | `string`              | `''`        |
-| `onChange`      | --               |             | `(e: Event) => void`  | `undefined` |
 | `selectedValue` | `selected-value` |             | `number`              | `undefined` |
 | `suffix`        | `suffix`         |             | `string`              | `''`        |
 
 
+## Events
+
+| Event      | Description | Type                |
+| ---------- | ----------- | ------------------- |
+| `onChange` |             | `CustomEvent<void>` |
+
+
 ----------------------------------------------
 
 *Built with [StencilJS](https://stenciljs.com/)*
diff --git a/src/components/mf-toggle/mf-toggle.tsx b/src/components/mf-toggle/mf-toggle.tsx
index dc73ad4d4..09a8ae10d 100644
--- a/src/components/mf-toggle/mf-toggle.tsx
+++ b/src/components/mf-toggle/mf-toggle.tsx
@@ -1,4 +1,4 @@
-import { Component, Prop } from '@stencil/core';
+import { Component, Prop, Event, EventEmitter } from '@stencil/core';
 
 @Component({
   tag: 'mf-toggle',
@@ -6,19 +6,28 @@ import { Component, Prop } from '@stencil/core';
   scoped: true,
 })
 export class MfToggle {
+  @Prop() ariaLabelledby?: string;
+  @Prop() disabled?: boolean;
+  @Prop() eventName?: string;
   @Prop() label?: string;
   @Prop() name: string = '';
-  @Prop() disabled?: boolean;
-  @Prop() ariaLabelledby?: string;
+  @Event({ eventName: this.eventName }) onChange: EventEmitter;
+
+  private onChangeHandler(e: Event) {
+    if (!e.target || !this.eventName) return;
+    const el = e.target as HTMLInputElement;
+    this.onChange.emit({ name: el.getAttribute('name'), value: el.checked === true });
+  }
 
   render() {
     return (
       <label class="wrapper">
         <input
-          name={this.name}
           aria-labelledby={this.ariaLabelledby}
-          type="checkbox"
           disabled={this.disabled}
+          name={this.name}
+          onChange={this.onChangeHandler}
+          type="checkbox"
         />
         <div class="toggle" />
         {this.label && <div class="label">{this.label}</div>}
diff --git a/src/components/mf-toggle/readme.md b/src/components/mf-toggle/readme.md
index 1bce10beb..4439a0533 100644
--- a/src/components/mf-toggle/readme.md
+++ b/src/components/mf-toggle/readme.md
@@ -11,10 +11,18 @@
 | ---------------- | ----------------- | ----------- | ---------------------- | ----------- |
 | `ariaLabelledby` | `aria-labelledby` |             | `string \| undefined`  | `undefined` |
 | `disabled`       | `disabled`        |             | `boolean \| undefined` | `undefined` |
+| `eventName`      | `event-name`      |             | `string \| undefined`  | `undefined` |
 | `label`          | `label`           |             | `string \| undefined`  | `undefined` |
 | `name`           | `name`            |             | `string`               | `''`        |
 
 
+## Events
+
+| Event      | Description | Type                |
+| ---------- | ----------- | ------------------- |
+| `onChange` |             | `CustomEvent<void>` |
+
+
 ----------------------------------------------
 
 *Built with [StencilJS](https://stenciljs.com/)*
diff --git a/src/components/plan-details/plan-details.tsx b/src/components/plan-details/plan-details.tsx
index 05c27af2c..ba3352abf 100644
--- a/src/components/plan-details/plan-details.tsx
+++ b/src/components/plan-details/plan-details.tsx
@@ -1,5 +1,6 @@
-import { Component, Prop } from '@stencil/core';
+import { Component, Prop, State, Listen } from '@stencil/core';
 import { $ } from '../../utils/currency';
+import { FEATURE_CHANGE } from '../../global/events';
 
 const RESOURCE_CREATE = '/resource/create?product='; // TODO get actual url
 const NUMBER_FEATURE_COIN = 10000000; // Numeric features are a ten-millionth of a cent, because floats stink
@@ -9,14 +10,28 @@ const YES = 'Yes';
 const featureCost = (number: number) => $(number / NUMBER_FEATURE_COIN);
 const singularize = (word: string) => word.replace(/s$/i, '');
 
+export const tagName = 'plan-details';
+
+interface UserFeature {
+  [key: string]: string | number | boolean;
+}
+
 @Component({
-  tag: 'plan-details',
+  tag: tagName,
   styleUrl: 'plan-details.css',
   shadow: true,
 })
 export class PlanDetails {
   @Prop() plan: Catalog.ExpandedPlan;
   @Prop() product: Catalog.ExpandedProduct;
+  @State() features: UserFeature;
+  @Listen(FEATURE_CHANGE) handleFeatureChange(e: CustomEvent) {
+    console.log(e);
+  }
+
+  componentWillLoad() {
+    this.features = this.initialFeatures();
+  }
 
   // TODO clean this up
   featureValue({
@@ -58,7 +73,6 @@ export class PlanDetails {
 
       const highEnd = featureCost(sortedCosts[sortedCosts.length - 1].cost_multiple || 0);
 
-      // eslint-disable-next-line no-irregular-whitespace
       return `${lowEnd} - ${highEnd} / ${singularize(suffix)}${freeText}`;
     }
 
@@ -75,8 +89,28 @@ export class PlanDetails {
     }
   }
 
-  selectedValue(feature: Catalog.ExpandedFeature): string {
-    return feature.value_string || '';
+  private initialFeatures(): UserFeature {
+    if (!this.plan.body.expanded_features) return {};
+
+    return this.plan.body.expanded_features.reduce((obj, feature) => {
+      // 1. If not customizable, don’t worry about it
+      if (!feature.customizable) return obj;
+
+      // 2. Grab feature name
+      const name = feature.label;
+
+      // 3. Grab the initial value, which should be declared in the schema
+      let value = feature.value_string; // string
+      if (feature.value && feature.value.label) value = feature.value.label; // boolean
+      if (feature.value && feature.value.numeric_details)
+        value = feature.value.numeric_details.min || 0; // number
+
+      return { ...obj, [name]: value };
+    }, {});
+  }
+
+  selectedValue(feature: Catalog.ExpandedFeature): string | undefined {
+    return feature.value;
   }
 
   customFeatureValue(feature: Catalog.ExpandedFeature) {
@@ -132,9 +166,10 @@ export class PlanDetails {
             })}
           </dl>
         </div>
+        <code>Features selected: {JSON.stringify(this.features)}</code>
         <footer class="footer">
           <div class="cost" itemprop="price">
-            {$(cost)} <small>&nbsp;/ mo</small>
+            {$(cost)}&nbsp;<small>/ mo</small>
           </div>
           <link-button
             href={`${RESOURCE_CREATE}${productLabel}&plan=${this.plan.id}`}
diff --git a/src/global/events.ts b/src/global/events.ts
new file mode 100644
index 000000000..94ebf8cf6
--- /dev/null
+++ b/src/global/events.ts
@@ -0,0 +1 @@
+export const FEATURE_CHANGE = 'FEATURE_CHANGE';
diff --git a/tsconfig.json b/tsconfig.json
index 7fd9dad5a..6f087cb99 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -17,7 +17,7 @@
     "jsxFactory": "h",
     "strictNullChecks": true,
     "paths": {
-      "types/*": ["types/*"]
+      "*": ["../node_modules/*", "*"]
     }
   },
   "include": ["src"],