Feature: Add gist card

api/gist.js

@@ -0,0 +1,81 @@
+import {
+  clampValue,
+  CONSTANTS,
+  renderError,
+  parseBoolean,
+} from "../src/common/utils.js";
+import { isLocaleAvailable } from "../src/translations.js";
+import { renderGistCard } from "../src/cards/gist-card.js";
+import { fetchGist } from "../src/fetchers/gist-fetcher.js";
+
+export default async (req, res) => {
+  const {
+    id,
+    title_color,
+    icon_color,
+    text_color,
+    bg_color,
+    theme,
+    cache_seconds,
+    locale,
+    border_radius,
+    border_color,
+    show_owner,
+  } = req.query;
+
+  res.setHeader("Content-Type", "image/svg+xml");
+
+  if (locale && !isLocaleAvailable(locale)) {
+    return res.send(renderError("Something went wrong", "Language not found"));
+  }
+
+  try {
+    const gistData = await fetchGist(id);
+
+    let cacheSeconds = clampValue(
+      parseInt(cache_seconds || CONSTANTS.FOUR_HOURS, 10),
+      CONSTANTS.FOUR_HOURS,
+      CONSTANTS.ONE_DAY,
+    );
+    cacheSeconds = process.env.CACHE_SECONDS
+      ? parseInt(process.env.CACHE_SECONDS, 10) || cacheSeconds
+      : cacheSeconds;
+
+    /*
+      if star count & fork count is over 1k then we are kFormating the text
+      and if both are zero we are not showing the stats
+      so we can just make the cache longer, since there is no need to frequent updates
+    */
+    const stars = gistData.starsCount;
+    const forks = gistData.forksCount;
+    const isBothOver1K = stars > 1000 && forks > 1000;
+    const isBothUnder1 = stars < 1 && forks < 1;
+    if (!cache_seconds && (isBothOver1K || isBothUnder1)) {
+      cacheSeconds = CONSTANTS.FOUR_HOURS;
+    }
+
+    res.setHeader(
+      "Cache-Control",
+      `max-age=${
+        cacheSeconds / 2
+      }, s-maxage=${cacheSeconds}, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
+    );
+
+    return res.send(
+      renderGistCard(gistData, {
+        title_color,
+        icon_color,
+        text_color,
+        bg_color,
+        theme,
+        border_radius,
+        border_color,
+        locale: locale ? locale.toLowerCase() : null,
+        show_owner: parseBoolean(show_owner),
+      }),
+    );
+  } catch (err) {
+    res.setHeader("Cache-Control", `no-cache, no-store, must-revalidate`); // Don't cache error responses.
+    return res.send(renderError(err.message, err.secondaryMessage));
+  }
+};

readme.md

@@ -97,8 +97,11 @@ Please visit [this link](https://give.do/fundraisers/stand-beside-the-victims-of
 - [GitHub Extra Pins](#github-extra-pins)
     - [Usage](#usage)
     - [Demo](#demo)
-- [Top Languages Card](#top-languages-card)
+- [GitHub Gist Pins](#github-gist-pins)
     - [Usage](#usage-1)
+    - [Demo](#demo-1)
+- [Top Languages Card](#top-languages-card)
+    - [Usage](#usage-2)
     - [Language stats algorithm](#language-stats-algorithm)
     - [Exclude individual repositories](#exclude-individual-repositories)
     - [Hide individual languages](#hide-individual-languages)
@@ -108,9 +111,9 @@ Please visit [this link](https://give.do/fundraisers/stand-beside-the-victims-of
     - [Donut Vertical Chart Language Card Layout](#donut-vertical-chart-language-card-layout)
     - [Pie Chart Language Card Layout](#pie-chart-language-card-layout)
     - [Hide Progress Bars](#hide-progress-bars)
-    - [Demo](#demo-1)
-- [Wakatime Stats Card](#wakatime-stats-card)
     - [Demo](#demo-2)
+- [Wakatime Stats Card](#wakatime-stats-card)
+    - [Demo](#demo-3)
 - [All Demos](#all-demos)
   - [Quick Tip (Align The Cards)](#quick-tip-align-the-cards)
 - [Deploy on your own](#deploy-on-your-own)
@@ -328,6 +331,10 @@ You can provide multiple comma-separated values in the bg\_color option to rende
 
 *   `show_owner` - Shows the repo's owner name *(boolean)*. Default: `false`.
 
+#### Gist Card Exclusive Options
+
+*   `show_owner` - Shows the gist's owner name *(boolean)*. Default: `false`.
+
 #### Language Card Exclusive Options
 
 *   `hide` - Hides the languages specified from the card *(Comma-separated values)*. Default: `[] (blank array)`.
@@ -384,6 +391,24 @@ Use [show\_owner](#repo-card-exclusive-options) query option to include the repo
 
 ![Readme Card](https://github-readme-stats.vercel.app/api/pin/?username=anuraghazra\&repo=github-readme-stats\&show_owner=true)
 
+# GitHub Gist Pins
+
+GitHub gist pins allow you to pin gists in your GitHub profile using a GitHub readme profile.
+
+### Usage
+
+Copy-paste this code into your readme and change the links.
+
+Endpoint: `api/gist?id=bbfce31e0217a3689c8d961a356cb10d`
+
+```md
+[![Gist Card](https://github-readme-stats.vercel.app/api/gist?id=bbfce31e0217a3689c8d961a356cb10d)](https://gist.github.com/Yizack/bbfce31e0217a3689c8d961a356cb10d/)
+```
+
+### Demo
+
+![Gist Card](https://github-readme-stats.vercel.app/api/gist?id=bbfce31e0217a3689c8d961a356cb10d)
+
 # Top Languages Card
 
 The top languages card shows a GitHub user's most frequently used languages.
@@ -592,6 +617,14 @@ Choose from any of the [default themes](#themes)
 
 ![Customized Card](https://github-readme-stats.vercel.app/api/pin?username=anuraghazra\&repo=github-readme-stats\&title_color=fff\&icon_color=f9f9f9\&text_color=9f9f9f\&bg_color=151515)
 
+*   Gist card
+
+![Gist Card](https://github-readme-stats.vercel.app/api/gist?id=bbfce31e0217a3689c8d961a356cb10d)
+
+*   Customizing gist card
+
+![Gist Card](https://github-readme-stats.vercel.app/api/gist?id=bbfce31e0217a3689c8d961a356cb10d&theme=calm)
+
 *   Top languages
 
 ![Top Langs](https://github-readme-stats.vercel.app/api/top-langs/?username=anuraghazra)

src/cards/gist-card.js

@@ -0,0 +1,180 @@
+// @ts-check
+
+import {
+  getCardColors,
+  parseEmojis,
+  wrapTextMultiline,
+  encodeHTML,
+  kFormatter,
+  measureText,
+  flexLayout,
+} from "../common/utils.js";
+import Card from "../common/Card.js";
+import { icons } from "../common/icons.js";
+
+/** Import language colors.
+ *
+ * @description Here we use the workaround found in
+ * https://stackoverflow.com/questions/66726365/how-should-i-import-json-in-node
+ * since vercel is using v16.14.0 which does not yet support json imports without the
+ * --experimental-json-modules flag.
+ */
+import { createRequire } from "module";
+const require = createRequire(import.meta.url);
+const languageColors = require("../common/languageColors.json"); // now works
+
+const ICON_SIZE = 16;
+const CARD_DEFAULT_WIDTH = 400;
+const HEADER_MAX_LENGTH = 35;
+
+/**
+ * Creates a node to display the primary programming language of the gist.
+ *
+ * @param {string} langName Language name.
+ * @param {string} langColor Language color.
+ * @returns {string} Language display SVG object.
+ */
+const createLanguageNode = (langName, langColor) => {
+  return `
+    <g data-testid="primary-lang">
+      <circle data-testid="lang-color" cx="0" cy="-5" r="6" fill="${langColor}" />
+      <text data-testid="lang-name" class="gray" x="15">${langName}</text>
+    </g>
+    `;
+};
+
+/**
+ * Creates an icon with label to display gist stats like forks, stars, etc.
+ *
+ * @param {string} icon The icon to display.
+ * @param {number|string} label The label to display.
+ * @param {string} testid The testid to assign to the label.
+ * @returns {string} Icon with label SVG object.
+ */
+const iconWithLabel = (icon, label, testid) => {
+  if (typeof label === "number" && label <= 0) return "";
+  const iconSvg = `
+      <svg
+        class="icon"
+        y="-12"
+        viewBox="0 0 16 16"
+        version="1.1"
+        width="${ICON_SIZE}"
+        height="${ICON_SIZE}"
+      >
+        ${icon}
+      </svg>
+    `;
+  const text = `<text data-testid="${testid}" class="gray">${label}</text>`;
+  return flexLayout({ items: [iconSvg, text], gap: 20 }).join("");
+};
+
+/**
+ * @typedef {import('./types').GistCardOptions} GistCardOptions Gist card options.
+ * @typedef {import('../fetchers/types').GistData} GistData Gist data.
+ */
+
+/**
+ * Render gist card.
+ *
+ * @param {GistData} gistData Gist data.
+ * @param {Partial<GistCardOptions>} options Gist card options.
+ * @returns {string} Gist card.
+ */
+const renderGistCard = (gistData, options = {}) => {
+  const { name, nameWithOwner, description, language, starsCount, forksCount } =
+    gistData;
+  const {
+    title_color,
+    icon_color,
+    text_color,
+    bg_color,
+    theme,
+    border_radius,
+    border_color,
+    show_owner = false,
+  } = options;
+
+  // returns theme based colors with proper overrides and defaults
+  const { titleColor, textColor, iconColor, bgColor, borderColor } =
+    getCardColors({
+      title_color,
+      icon_color,
+      text_color,
+      bg_color,
+      border_color,
+      theme,
+    });
+
+  const lineWidth = 59;
+  const linesLimit = 10;
+  const desc = parseEmojis(description || "No description provided");
+  const multiLineDescription = wrapTextMultiline(desc, lineWidth, linesLimit);
+  const descriptionLines = multiLineDescription.length;
+  const descriptionSvg = multiLineDescription
+    .map((line) => `<tspan dy="1.2em" x="25">${encodeHTML(line)}</tspan>`)
+    .join("");
+
+  const lineHeight = descriptionLines > 3 ? 12 : 10;
+  const height =
+    (descriptionLines > 1 ? 120 : 110) + descriptionLines * lineHeight;
+
+  const totalStars = kFormatter(starsCount);
+  const totalForks = kFormatter(forksCount);
+  const svgStars = iconWithLabel(icons.star, totalStars, "starsCount");
+  const svgForks = iconWithLabel(icons.fork, totalForks, "forksCount");
+
+  const languageName = language || "Unspecified";
+  const languageColor = languageColors[languageName] || "#858585";
+
+  const svgLanguage = createLanguageNode(languageName, languageColor);
+
+  const starAndForkCount = flexLayout({
+    items: [svgLanguage, svgStars, svgForks],
+    sizes: [
+      measureText(languageName, 12),
+      ICON_SIZE + measureText(`${totalStars}`, 12),
+      ICON_SIZE + measureText(`${totalForks}`, 12),
+    ],
+    gap: 25,
+  }).join("");
+
+  const header = show_owner ? nameWithOwner : name;
+
+  const card = new Card({
+    defaultTitle:
+      header.length > HEADER_MAX_LENGTH
+        ? `${header.slice(0, HEADER_MAX_LENGTH)}...`
+        : header,
+    titlePrefixIcon: icons.gist,
+    width: CARD_DEFAULT_WIDTH,
+    height,
+    border_radius,
+    colors: {
+      titleColor,
+      textColor,
+      iconColor,
+      bgColor,
+      borderColor,
+    },
+  });
+
+  card.setCSS(`
+    .description { font: 400 13px 'Segoe UI', Ubuntu, Sans-Serif; fill: ${textColor} }
+    .gray { font: 400 12px 'Segoe UI', Ubuntu, Sans-Serif; fill: ${textColor} }
+    .icon { fill: ${iconColor} }
+  `);
+
+  return card.render(`
+    <text class="description" x="25" y="-5">
+        ${descriptionSvg}
+    </text>
+
+    <g transform="translate(30, ${height - 75})">
+        ${starAndForkCount}
+    </g>
+  `);
+};
+
+export { renderGistCard, HEADER_MAX_LENGTH };
+export default renderGistCard;

src/cards/types.d.ts

@@ -57,3 +57,7 @@ type WakaTimeOptions = CommonOptions & {
   layout: "compact" | "normal";
   langs_count: number;
 };
+
+export type GistCardOptions = CommonOptions & {
+  show_owner: boolean;
+};