Change image & price on variant change

packages/commerce/src/types/common.ts

@@ -14,3 +14,8 @@ export type Image = {
   width?: number
   height?: number
 }
+
+export type SEO = {
+  title?: string
+  description?: string
+}

packages/commerce/src/types/product.ts

@@ -1,3 +1,5 @@
+import { SEO } from './common'
+
 export type ProductImage = {
   url: string
   alt?: string
@@ -29,6 +31,10 @@ export type ProductVariant = {
   id: string | number
   options: ProductOption[]
   availableForSale?: boolean
+  // Product variant price
+  price?: ProductPrice
+  // Product variant image
+  image?: ProductImage
 }
 
 export type Product = {
@@ -44,6 +50,7 @@ export type Product = {
   price: ProductPrice
   options: ProductOption[]
   vendor?: string
+  seo?: SEO
 }
 
 export type SearchProductsBody = {

site/components/product/ProductCard/ProductCard.tsx

@@ -108,10 +108,7 @@ const ProductCard: FC<Props> = ({
                 variant={product.variants[0] as any}
               />
             )}
-            <ProductTag
-              name={product.name}
-              price={`${price} ${product.price?.currencyCode}`}
-            />
+            <ProductTag name={product.name} price={price} />
             <div className={s.imageContainer}>
               {product?.images && (
                 <div>

site/components/product/ProductDetails/ProductDetails.module.css

@@ -0,0 +1,54 @@
+.root {
+  @apply relative grid items-start gap-1 grid-cols-1 overflow-x-hidden;
+  min-height: auto;
+}
+
+.main {
+  @apply relative px-0 pb-0 box-border  flex flex-col col-span-1;
+  min-height: 500px;
+}
+.sidebar {
+  @apply flex flex-col col-span-1 mx-auto max-w-8xl px-6 py-6 w-full h-full;
+}
+
+.sliderContainer {
+  @apply flex items-center justify-center overflow-x-hidden bg-violet;
+}
+
+.imageContainer {
+  @apply text-center h-full relative;
+}
+
+.imageContainer > span {
+  height: 100% !important;
+}
+
+.sliderContainer .img {
+  @apply w-full h-full max-h-full object-cover;
+}
+
+.button {
+  width: 100%;
+}
+
+.wishlistButton {
+  @apply absolute z-30 top-0 right-0;
+}
+
+@screen lg {
+  .root {
+    @apply grid-cols-12;
+  }
+
+  .main {
+    @apply mx-0 col-span-8;
+  }
+
+  .sidebar {
+    @apply col-span-4 py-6;
+  }
+
+  .imageContainer {
+    max-height: 600px;
+  }
+}

site/components/product/ProductDetails/ProductDetails.tsx

@@ -0,0 +1,49 @@
+import cn from 'clsx'
+import Image from 'next/image'
+import { WishlistButton } from '@components/wishlist'
+import ProductSidebar from '../ProductSidebar'
+import ProductTag from '../ProductTag'
+
+import { useProduct } from '../product-context'
+
+import s from './ProductDetails.module.css'
+import ProductSlider from '../ProductSlider'
+
+const ProductDetails = () => {
+  const { product, variant, price } = useProduct()
+
+  return (
+    <div className={cn(s.root, 'fit')}>
+      <div className={cn(s.main, 'fit')}>
+        <ProductTag name={product.name} price={price} fontSize={32} />
+        <div className={s.sliderContainer}>
+          <ProductSlider key={product.id}>
+            {product.images.map((image, i) => (
+              <div key={image.url} className={s.imageContainer}>
+                <Image
+                  className={s.img}
+                  src={image.url!}
+                  alt={image.alt || 'Product Image'}
+                  width={600}
+                  height={600}
+                  priority={i === 0}
+                  quality="85"
+                />
+              </div>
+            ))}
+          </ProductSlider>
+        </div>
+        {process.env.COMMERCE_WISHLIST_ENABLED && (
+          <WishlistButton
+            className={s.wishlistButton}
+            productId={product.id}
+            variant={variant}
+          />
+        )}
+      </div>
+      <ProductSidebar key={product.id} className={s.sidebar} />
+    </div>
+  )
+}
+
+export default ProductDetails

site/components/product/ProductOptions/ProductOptions.tsx

@@ -1,22 +1,13 @@
 import { memo } from 'react'
 import { Swatch } from '@components/product'
-import type { ProductOption } from '@commerce/types/product'
-import { SelectedOptions } from '../helpers'
+import { useProduct } from '../product-context'
 
-interface ProductOptionsProps {
-  options: ProductOption[]
-  selectedOptions: SelectedOptions
-  setSelectedOptions: React.Dispatch<React.SetStateAction<SelectedOptions>>
-}
+const ProductOptions: React.FC = () => {
+  const { product, selectedOptions, setSelectedOptions } = useProduct()
 
-const ProductOptions: React.FC<ProductOptionsProps> = ({
-  options,
-  selectedOptions,
-  setSelectedOptions,
-}) => {
   return (
     <div>
-      {options.map((opt) => (
+      {product.options.map((opt) => (
         <div className="pb-4" key={opt.displayName}>
           <h2 className="uppercase font-medium text-sm tracking-wide">
             {opt.displayName}

site/components/product/ProductSidebar/ProductSidebar.tsx

@@ -1,31 +1,22 @@
 import s from './ProductSidebar.module.css'
 import { useAddItem } from '@framework/cart'
-import { FC, useEffect, useState } from 'react'
+import { FC, useState } from 'react'
 import { ProductOptions } from '@components/product'
-import type { Product } from '@commerce/types/product'
 import { Button, Text, Rating, Collapse, useUI } from '@components/ui'
-import {
-  getProductVariant,
-  selectDefaultOptionFromProduct,
-  SelectedOptions,
-} from '../helpers'
+
+import { useProduct } from '../product-context'
 
 interface ProductSidebarProps {
-  product: Product
   className?: string
 }
 
-const ProductSidebar: FC<ProductSidebarProps> = ({ product, className }) => {
+const ProductSidebar: FC<ProductSidebarProps> = ({ className }) => {
   const addItem = useAddItem()
+
+  const { product, variant } = useProduct()
   const { openSidebar, setSidebarView } = useUI()
   const [loading, setLoading] = useState(false)
-  const [selectedOptions, setSelectedOptions] = useState<SelectedOptions>({})
 
-  useEffect(() => {
-    selectDefaultOptionFromProduct(product, setSelectedOptions)
-  }, [product])
-
-  const variant = getProductVariant(product, selectedOptions)
   const addToCart = async () => {
     setLoading(true)
     try {
@@ -43,11 +34,7 @@ const ProductSidebar: FC<ProductSidebarProps> = ({ product, className }) => {
 
   return (
     <div className={className}>
-      <ProductOptions
-        options={product.options}
-        selectedOptions={selectedOptions}
-        setSelectedOptions={setSelectedOptions}
-      />
+      <ProductOptions />
       <Text
         className="pb-4 break-words w-full max-w-xl"
         html={product.descriptionHtml || product.description}

site/components/product/ProductSlider/ProductSlider.tsx

@@ -10,6 +10,7 @@ import cn from 'clsx'
 import { a } from '@react-spring/web'
 import s from './ProductSlider.module.css'
 import ProductSliderControl from '../ProductSliderControl'
+import { useProduct } from '../product-context'
 
 interface ProductSliderProps {
   children: React.ReactNode[]
@@ -20,7 +21,8 @@ const ProductSlider: React.FC<ProductSliderProps> = ({
   children,
   className = '',
 }) => {
-  const [currentSlide, setCurrentSlide] = useState(0)
+  const { imageIndex, resetImageIndex } = useProduct()
+  const [currentSlide, setCurrentSlide] = useState(imageIndex ?? 0)
   const [isMounted, setIsMounted] = useState(false)
   const sliderContainerRef = useRef<HTMLDivElement>(null)
   const thumbsContainerRef = useRef<HTMLDivElement>(null)
@@ -29,10 +31,12 @@ const ProductSlider: React.FC<ProductSliderProps> = ({
     loop: true,
     slides: { perView: 1 },
     created: () => setIsMounted(true),
+    dragStarted: () => {
+      resetImageIndex()
+    },
     slideChanged(s) {
       const slideNumber = s.track.details.rel
       setCurrentSlide(slideNumber)
-
       if (thumbsContainerRef.current) {
         const $el = document.getElementById(`thumb-${slideNumber}`)
         if (slideNumber >= 3) {
@@ -74,8 +78,23 @@ const ProductSlider: React.FC<ProductSliderProps> = ({
     }
   }, [])
 
-  const onPrev = React.useCallback(() => slider.current?.prev(), [slider])
-  const onNext = React.useCallback(() => slider.current?.next(), [slider])
+  useEffect(() => {
+    if (imageIndex && imageIndex !== currentSlide) {
+      slider.current?.moveToIdx(imageIndex, undefined, {
+        duration: 0,
+      })
+    }
+  }, [imageIndex, currentSlide, slider])
+
+  const onPrev = React.useCallback(() => {
+    resetImageIndex()
+    slider.current?.prev()
+  }, [resetImageIndex, slider])
+
+  const onNext = React.useCallback(() => {
+    resetImageIndex()
+    slider.current?.next()
+  }, [resetImageIndex, slider])
 
   return (
     <div className={cn(s.root, className)} ref={sliderContainerRef}>
@@ -114,6 +133,7 @@ const ProductSlider: React.FC<ProductSliderProps> = ({
                   }),
                   id: `thumb-${idx}`,
                   onClick: () => {
+                    resetImageIndex()
                     slider.current?.moveToIdx(idx)
                   },
                 },

site/components/product/ProductView/ProductView.module.css

@@ -1,59 +1,3 @@
-.root {
-  @apply relative grid items-start gap-1 grid-cols-1 overflow-x-hidden;
-  min-height: auto;
-}
-
-.main {
-  @apply relative px-0 pb-0 box-border  flex flex-col col-span-1;
-  min-height: 500px;
-}
-
-.sidebar {
-  @apply flex flex-col col-span-1 mx-auto max-w-8xl px-6 py-6 w-full h-full;
-}
-
-.sliderContainer {
-  @apply flex items-center justify-center overflow-x-hidden bg-violet;
-}
-
-.imageContainer {
-  @apply text-center h-full relative;
-}
-
-.imageContainer > span {
-  height: 100% !important;
-}
-
-.sliderContainer .img {
-  @apply w-full h-full max-h-full object-cover;
-}
-
-.button {
-  width: 100%;
-}
-
-.wishlistButton {
-  @apply absolute z-30 top-0 right-0;
-}
-
 .relatedProductsGrid {
   @apply grid grid-cols-2 py-2 gap-2 md:grid-cols-4 md:gap-7;
 }
-
-@screen lg {
-  .root {
-    @apply grid-cols-12;
-  }
-
-  .main {
-    @apply mx-0 col-span-8;
-  }
-
-  .sidebar {
-    @apply col-span-4 py-6;
-  }
-
-  .imageContainer {
-    max-height: 600px;
-  }
-}

site/components/product/ProductView/ProductView.tsx

@@ -1,71 +1,27 @@
-import cn from 'clsx'
-import Image from 'next/image'
 import s from './ProductView.module.css'
 import { FC } from 'react'
 import type { Product } from '@commerce/types/product'
-import usePrice from '@framework/product/use-price'
-import { WishlistButton } from '@components/wishlist'
-import { ProductSlider, ProductCard } from '@components/product'
+
+import { ProductCard } from '@components/product'
 import { Container, Text } from '@components/ui'
+import { ProductProvider } from '../product-context'
+import ProductDetails from '../ProductDetails/ProductDetails'
 import { SEO } from '@components/common'
-import ProductSidebar from '../ProductSidebar'
-import ProductTag from '../ProductTag'
+
 interface ProductViewProps {
   product: Product
   relatedProducts: Product[]
 }
 
 const ProductView: FC<ProductViewProps> = ({ product, relatedProducts }) => {
-  const { price } = usePrice({
-    amount: product.price.value,
-    baseAmount: product.price.retailPrice,
-    currencyCode: product.price.currencyCode!,
-  })
-
   return (
     <>
       <Container className="max-w-none w-full" clean>
-        <div className={cn(s.root, 'fit')}>
-          <div className={cn(s.main, 'fit')}>
-            <ProductTag
-              name={product.name}
-              price={`${price} ${product.price?.currencyCode}`}
-              fontSize={32}
-            />
-            <div className={s.sliderContainer}>
-              <ProductSlider key={product.id}>
-                {product.images.map((image, i) => (
-                  <div key={image.url} className={s.imageContainer}>
-                    <Image
-                      className={s.img}
-                      src={image.url!}
-                      alt={image.alt || 'Product Image'}
-                      width={600}
-                      height={600}
-                      priority={i === 0}
-                      quality="85"
-                    />
-                  </div>
-                ))}
-              </ProductSlider>
-            </div>
-            {process.env.COMMERCE_WISHLIST_ENABLED && (
-              <WishlistButton
-                className={s.wishlistButton}
-                productId={product.id}
-                variant={product.variants[0]}
-              />
-            )}
-          </div>
-
-          <ProductSidebar
-            key={product.id}
-            product={product}
-            className={s.sidebar}
-          />
-        </div>
         <hr className="mt-7 border-accent-2" />
         <section className="py-12 px-6 mb-10">
+          <ProductProvider product={product}>
+            <ProductDetails />
+          </ProductProvider>
           <Text variant="sectionHeading">Related Products</Text>
           <div className={s.relatedProductsGrid}>
             {relatedProducts.map((p) => (
@@ -90,12 +46,12 @@ const ProductView: FC<ProductViewProps> = ({ product, relatedProducts }) => {
         </section>
       </Container>
       <SEO
-        title={product.name}
-        description={product.description}
+        title={product.seo?.title || product.name}
+        description={product.seo?.description || product.description}
         openGraph={{
           type: 'website',
-          title: product.name,
-          description: product.description,
+          title: product.seo?.title || product.name,
+          description: product.seo?.description || product.description,
           images: [
             {
               url: product.images[0]?.url!,

site/components/product/product-context.tsx

@@ -0,0 +1,95 @@
+import { Product, ProductImage, ProductVariant } from '@commerce/types/product'
+
+import {
+  getProductVariant,
+  selectDefaultOptionFromProduct,
+  SelectedOptions,
+} from './helpers'
+
+import React, {
+  FC,
+  ReactNode,
+  useCallback,
+  useEffect,
+  useMemo,
+  useState,
+} from 'react'
+import usePrice from '@framework/product/use-price'
+
+export interface ProductContextValue {
+  product: Product
+  imageIndex: number | null
+  price: string
+  variant: ProductVariant
+  selectedOptions: SelectedOptions
+  setSelectedOptions: React.Dispatch<React.SetStateAction<SelectedOptions>>
+  resetImageIndex: () => void
+}
+
+export const ProductContext = React.createContext<ProductContextValue | null>(
+  null
+)
+
+ProductContext.displayName = 'ProductContext'
+
+type ProductProviderProps = {
+  product: Product
+  children?: ReactNode
+}
+
+export const ProductProvider: FC<ProductProviderProps> = ({
+  product,
+  children,
+}) => {
+  const [selectedOptions, setSelectedOptions] = useState<SelectedOptions>({})
+  const [imageIndex, setImageIndex] = useState<number | null>(null)
+  const resetImageIndex = useCallback(() => setImageIndex(null), [])
+
+  const variant = useMemo(() => {
+    const v = getProductVariant(product, selectedOptions)
+    return v || product.variants[0]
+  }, [product, selectedOptions])
+
+  const { price } = usePrice({
+    amount: variant?.price?.value || product.price.value,
+    baseAmount: variant?.price?.retailPrice || product.price.retailPrice,
+    currencyCode: variant?.price?.currencyCode || product.price.currencyCode!,
+  })
+
+  useEffect(() => {
+    selectDefaultOptionFromProduct(product, setSelectedOptions)
+  }, [product])
+
+  useEffect(() => {
+    const idx = product.images.findIndex(
+      (image: ProductImage) => image.url === variant?.image?.url
+    )
+    if (idx) {
+      setImageIndex(idx)
+    }
+  }, [variant, product])
+
+  return (
+    <ProductContext.Provider
+      value={{
+        price,
+        product,
+        variant,
+        imageIndex,
+        resetImageIndex,
+        selectedOptions,
+        setSelectedOptions,
+      }}
+    >
+      {children}
+    </ProductContext.Provider>
+  )
+}
+
+export const useProduct = () => {
+  const context = React.useContext(ProductContext) as ProductContextValue
+  if (context === undefined) {
+    throw new Error(`useProduct must be used within a ProductProvider`)
+  }
+  return context
+}