feat: gumlet image provider (#489)

Co-authored-by: Aditya Patadia <adityapatadia@users.noreply.github.com>

docs/content/en/4.providers/gumlet.md

@@ -0,0 +1,49 @@
+---
+title: Gumlet Provider
+description: 'Nuxt Image has first class integration with Gumlet'
+navigation:
+  title: Gumlet
+---
+
+Integration between [Gumlet](https://docs.gumlet.com/) and the image module.
+
+To use this provider you just need to specify the base url of your service in Gumlet.
+
+```js{}[nuxt.config.js]
+export default {
+  image: {
+    gumlet: {
+      baseURL: 'https://demo.gumlet.io'
+    }
+  }
+}
+```
+
+## gumlet `mode` values
+
+Gumlet supports all the [the standard values for `fit` property](/components/nuxt-img#fit) of Nuxt image and Nuxt picture.
+
+
+## gumlet modifiers
+
+Beside the [standard modifiers](/components/nuxt-img#modifiers), you can also pass all gumlet-specific render API parameters to the `modifiers` prop.
+
+For a full list of these modifiers and their uses, check out [Gumlet's image Rendering API documentation](https://docs.gumlet.com/reference/image-transform-size#mode).
+
+## gumlet best practices
+
+Some common best practices when using Gumlet, would be to include our `format=auto` parameter, which will automatically apply the best format for an image and compress the image as well. Combine this with some top of intelligent cropping and resizing and you will have a great image!
+
+```html
+<nuxt-img
+  provider="gumlet"
+  src="/sea.jpeg"
+  width="300"
+  height="500"
+  fit="cover"
+  :modifiers="{ format: 'auto', compress: 'true' }"
+/>
+```
+
+This will return a 300 x 500 image, which has been compressed, will display next-gen formats for a browser, and has been cropped intelligently to the face of the [woman in the hat](https://demo.gumlet.io/sea.jpeg?format=auto&w=300&h=500&compress=true).
+

playground/nuxt.config.ts

@@ -42,6 +42,9 @@ export default <NuxtConfig> {
     glide: {
       baseURL: 'https://glide.herokuapp.com/1.0/'
     },
+    gumlet: {
+      baseURL: 'https://demo.gumlet.io'
+    },
     imgix: {
       baseURL: 'https://assets.imgix.net'
     },

playground/providers.ts

@@ -135,6 +135,18 @@ export const providers: Provider[] = [
       }
     ]
   },
+  // gumlet
+  {
+    name: 'gumlet',
+    samples: [
+      {
+        src: '/sea.jpeg',
+        width: 300,
+        height: 300,
+        fit: 'cover'
+      }
+    ]
+  },
   // imgix
   {
     name: 'imgix',

src/provider.ts

@@ -10,6 +10,7 @@ const BuiltInProviders = [
   'fastly',
   'glide',
   'imagekit',
+  'gumlet',
   'imgix',
   'ipx',
   'netlify',

src/runtime/providers/gumlet.ts

@@ -0,0 +1,78 @@
+import { joinURL } from 'ufo'
+import type { ProviderGetImage } from 'src'
+import { createOperationsGenerator } from '~image'
+
+export const operationsGenerator = createOperationsGenerator({
+  keyMap: {
+    width: 'w',
+    height: 'h',
+    format: 'format',
+    quality: 'q',
+    backgroundColor: 'bg',
+    rotate: 'rot',
+    mask: 'mask',
+    auto: 'auto',
+    crop: 'crop',
+    brightness: 'bri',
+    contrast: 'con',
+    exposure: 'exp',
+    gamma: 'gam',
+    highlight: 'high',
+    hueShift: 'hue',
+    invert: 'invert',
+    saturation: 'sat',
+    sharpen: 'sharp',
+    padding: 'pad',
+    paletteColorCount: 'colors',
+    colorPaletteExtraction: 'palette',
+    cssPrefix: 'prefix',
+    jsonFaceData: 'faces',
+    fillMode: 'fill',
+    fillColor: 'fill-color',
+    transparency: 'transparency',
+    focalPointDebug: 'fp-debug',
+    focalPointXPosition: 'fp-x',
+    focalPointYPosition: 'fp-y',
+    focalPointZoom: 'fp-z',
+    chromaSubsampling: 'chromasub',
+    colorQuantization: 'colorquant',
+    colorSpace: 'colorspace',
+    dotsPerInch: 'dpi',
+    pdfPageNumber: 'page',
+    pixelDensity: 'dpr',
+    aspectRatio: 'ar',
+    sourceRectangleRegion: 'rect',
+    monochrome: 'monochrome'
+  },
+  valueMap: {
+    fit: {
+      fill: 'scale',
+      inside: 'max',
+      outside: 'min',
+      cover: 'crop',
+      contain: 'fill',
+      clamp: 'clamp',
+      clip: 'clip',
+      facearea: 'facearea',
+      fillMax: 'fillmax'
+    },
+    format: {
+      gif: 'gif',
+      jpg: 'jpg',
+      json: 'json',
+      png: 'png',
+      avif: 'avif',
+      webp: 'webp',
+      auto: 'auto'
+    }
+  },
+  joinWith: '&',
+  formatter: (key, value) => `${key}=${value}`
+})
+
+export const getImage: ProviderGetImage = (src, { modifiers = {}, baseURL = '/' } = {}) => {
+  const operations = operationsGenerator(modifiers)
+  return {
+    url: joinURL(baseURL, src + (operations ? ('?' + operations) : ''))
+  }
+}

src/types/module.ts

@@ -17,6 +17,7 @@ export interface ImageProviders {
   contentful?: any
   fastly?: any
   glide?: any
+  gumlet?: any
   imagekit?: any
   imgix?: any
   prismic?: any

test/providers.ts

@@ -6,6 +6,7 @@ export const images = [
     twicpics: { url: '/test.png' },
     fastly: { url: '/test.png' },
     glide: { url: '/test.png' },
+    gumlet: { url: '/test.png' },
     imgix: { url: '/test.png' },
     imageengine: { url: '/test.png' },
     unsplash: { url: '/test.png' },
@@ -22,6 +23,7 @@ export const images = [
     twicpics: { url: '/test.png?twic=v1/cover=200x-' },
     fastly: { url: '/test.png?width=200' },
     glide: { url: '/test.png?w=200' },
+    gumlet: { url: '/test.png?w=200' },
     imgix: { url: '/test.png?w=200' },
     imageengine: { url: '/test.png?imgeng=/w_200' },
     unsplash: { url: '/test.png?w=200' },
@@ -38,6 +40,7 @@ export const images = [
     twicpics: { url: '/test.png?twic=v1/cover=-x200' },
     fastly: { url: '/test.png?height=200' },
     glide: { url: '/test.png?h=200' },
+    gumlet: { url: '/test.png?h=200' },
     imgix: { url: '/test.png?h=200' },
     imageengine: { url: '/test.png?imgeng=/h_200' },
     unsplash: { url: '/test.png?h=200' },
@@ -54,6 +57,7 @@ export const images = [
     twicpics: { url: '/test.png?twic=v1/cover=200x200' },
     fastly: { url: '/test.png?width=200&height=200' },
     glide: { url: '/test.png?w=200&h=200' },
+    gumlet: { url: '/test.png?w=200&h=200' },
     imgix: { url: '/test.png?w=200&h=200' },
     imageengine: { url: '/test.png?imgeng=/w_200/h_200' },
     unsplash: { url: '/test.png?w=200&h=200' },
@@ -70,6 +74,7 @@ export const images = [
     twicpics: { url: '/test.png?twic=v1/contain=200x200' },
     fastly: { url: '/test.png?width=200&height=200&fit=bounds' },
     glide: { url: '/test.png?w=200&h=200&fit=contain' },
+    gumlet: { url: '/test.png?w=200&h=200&fit=fill' },
     imgix: { url: '/test.png?w=200&h=200&fit=fill' },
     imageengine: { url: '/test.png?imgeng=/w_200/h_200/m_letterbox' },
     unsplash: { url: '/test.png?w=200&h=200&fit=fill' },
@@ -86,6 +91,7 @@ export const images = [
     twicpics: { url: '/test.png?twic=v1/output=jpeg/contain=200x200' },
     fastly: { url: '/test.png?width=200&height=200&fit=bounds&format=jpeg' },
     glide: { url: '/test.png?w=200&h=200&fit=contain&fm=jpeg' },
+    gumlet: { url: '/test.png?w=200&h=200&fit=fill&format=jpeg' },
     imgix: { url: '/test.png?w=200&h=200&fit=fill&fm=jpeg' },
     imageengine: { url: '/test.png?imgeng=/w_200/h_200/m_letterbox/f_jpg' },
     unsplash: { url: '/test.png?w=200&h=200&fit=fill&fm=jpeg' },

test/unit/providers.test.ts

@@ -7,6 +7,7 @@ import * as twicpics from '~/runtime/providers/twicpics'
 import * as fastly from '~/runtime/providers/fastly'
 import * as glide from '~/runtime/providers/glide'
 import * as imgix from '~/runtime/providers/imgix'
+import * as gumlet from '~/runtime/providers/gumlet'
 import * as imageengine from '~/runtime/providers/imageengine'
 import * as unsplash from '~/runtime/providers/unsplash'
 import * as imagekit from '~/runtime/providers/imagekit'
@@ -126,6 +127,18 @@ describe('Providers', () => {
     }
   })
 
+  test('gumlet', () => {
+    const providerOptions = {
+      baseURL: ''
+    }
+
+    for (const image of images) {
+      const [src, modifiers] = image.args
+      const generated = gumlet.getImage(src, { modifiers, ...providerOptions }, emptyContext)
+      expect(generated).toMatchObject(image.gumlet)
+    }
+  })
+
   test('imgix', () => {
     const providerOptions = {
       baseURL: ''