GitHub pull request

import {Easing, Fill, interpolate, spring, useBrand, useDesignScale, useFrame, useVideo} from "odori";

export type GithubCheck = {name: string; detail?: string};

export type GithubPrProps = {
  /** The pull request title. */
  title: string;
  /** The number beside it. */
  number?: number;
  /** Who opened it. */
  author?: string;
  /** The branch it merges from. */
  branch?: string;
  /** The branch it merges into. */
  base?: string;
  /** Commits, as the byline states them. */
  commits?: number;
  /** Files and lines, as the summary under the byline states them. */
  stats?: {files: number; additions: number; deletions: number};
  /** Checks that resolve one after another, then unlock the merge. */
  checks?: GithubCheck[];
  theme?: "light" | "dimmed";
};

const PALETTE = {
  light: {
    page: "#FFFFFF",
    card: "#F6F8FA",
    edge: "#D1D9E0",
    ink: "#1F2328",
    faint: "#59636E",
    open: "#1F883D",
    chip: "#DDF4FF",
    chipInk: "#0969DA",
  },
  /* Named for what it is: these are GitHub's dark-dimmed values, not its
     default dark, and calling it "dark" set the wrong expectation. */
  dimmed: {
    page: "#212830",
    card: "#262C36",
    edge: "#3D444D",
    ink: "#D1D7E0",
    faint: "#9198A1",
    open: "#347D39",
    chip: "#143D79",
    chipInk: "#478BE6",
  },
};

const FONT = '"Mona Sans VF", "Mona Sans", -apple-system, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif';
const GREEN = "#1A7F37";
const SUCCESS = "#3FB950";

const CHECK_START = 34;
const CHECK_STEP = 14;

/**
 * GitHub's default avatar is an identicon, not a letter.
 *
 * A five by five grid, mirrored down the middle, inset by a margin the way
 * GitHub insets it, with the filled cells and the colour both derived from a
 * hash of the login. GitHub keys it off the account id; the login stands in
 * here, and the only property that matters is the one GitHub relies on: the
 * same name always draws the same mark.
 */
const identicon = (name: string, size: number, px: (value: number) => number) => {
  /* FNV-1a, then a mix, because a plain multiply-and-add leaves the low bits
     barely changed between similar logins and every mark comes out alike. */
  let hash = 0x811c9dc5;
  for (const character of name) {
    hash = (hash ^ character.codePointAt(0)!) >>> 0;
    hash = Math.imul(hash, 0x01000193) >>> 0;
  }
  hash = (hash ^ (hash >>> 15)) >>> 0;
  hash = Math.imul(hash, 0x2545f491) >>> 0;
  hash = (hash ^ (hash >>> 13)) >>> 0;

  const ink = `hsl(${hash % 360} 58% 50%)`;
  const margin = size / 12;
  const cell = (size - margin * 2) / 5;
  const cells = [];
  for (let column = 0; column < 3; column += 1) {
    for (let row = 0; row < 5; row += 1) {
      /* One bit per cell, taken from a different part of the word each time
         so the three columns do not repeat one another. */
      const bit = (Math.imul(hash, column * 5 + row + 1) >>> ((column * 5 + row) % 13)) & 1;
      if (!bit) continue;
      for (const x of column === 2 ? [2] : [column, 4 - column]) {
        cells.push(
          <rect
            key={`${x}-${row}`}
            x={margin + x * cell}
            y={margin + row * cell}
            width={cell}
            height={cell}
            fill={ink}
          />,
        );
      }
    }
  }

  return (
    <span style={{borderRadius: px(999), flex: "none", lineHeight: 0, overflow: "hidden"}}>
      <svg width={px(size)} height={px(size)} viewBox={`0 0 ${size} ${size}`}>
        <rect width={size} height={size} fill="#F0F0F0" />
        {cells}
      </svg>
    </span>
  );
};

/**
 * A pull request with its checks going green and the merge button unlocking.
 *
 * Checks resolve in sequence rather than together, and the merge button only
 * fills once the last one lands. That order is the whole story: a video that
 * greens everything at once shows a result, and a video that greens them one
 * at a time shows a system working.
 *
 * Set at the zoom a screen capture would be shown at, not at the browser's
 * own point sizes: text that is comfortable to read on a laptop is a caption
 * strip in a video frame, and this is a frame first.
 */
export const GithubPr = ({
  title,
  number = 128,
  author = "johndoe",
  branch = "feat/agent-surfaces",
  base = "main",
  commits = 3,
  stats = {files: 6, additions: 214, deletions: 38},
  checks = [
    {name: "typecheck", detail: "12s"},
    {name: "test", detail: "48s"},
    {name: "build", detail: "1m 04s"},
  ],
  theme = "light",
}: GithubPrProps) => {
  const frame = useFrame();
  const {fps} = useVideo();
  const brand = useBrand();
  const scale = useDesignScale();
  const colors = PALETTE[theme];
  const px = (value: number) => value * scale;

  const enter = interpolate(frame, [0, 14], [0, 1], {easing: Easing.standard});
  const settled = CHECK_START + Math.max(0, checks.length - 1) * CHECK_STEP + 12;
  const merge = spring({frame, fps, delayInFrames: settled, stiffness: 160, damping: 16});
  /* Springs overshoot, and a color-mix percentage past 100 invalidates the
     whole declaration; the fill uses the clamped value, the motion the raw. */
  const fill = Math.min(1, Math.max(0, merge));
  const allDone = frame >= settled;

  const chip = (name: string) => (
    <span
      style={{
        background: colors.chip,
        borderRadius: px(7),
        color: colors.chipInk,
        fontFamily: brand.typography.mono,
        fontSize: px(24),
        padding: `${px(3)}px ${px(10)}px`,
      }}
    >
      {name}
    </span>
  );

  /** The status octicon: a spinner that hands over to a filled green check. */
  const status = (done: number) => (
    <span
      style={{
        alignItems: "center",
        display: "inline-flex",
        height: px(36),
        justifyContent: "center",
        position: "relative",
        width: px(36),
      }}
    >
      <span
        style={{
          border: `${px(3.5)}px solid #D4A72C`,
          borderRadius: px(999),
          borderTopColor: "transparent",
          height: px(26),
          opacity: 1 - done,
          position: "absolute",
          transform: `rotate(${frame * 12}deg)`,
          width: px(26),
        }}
      />
      <svg
        viewBox="0 0 24 24"
        width={px(32)}
        height={px(32)}
        style={{opacity: done, position: "absolute", transform: `scale(${0.6 + done * 0.4})`}}
      >
        <circle cx="12" cy="12" r="10" fill={SUCCESS} />
        <path
          d="M7.5 12.2l3 3 6-6.4"
          fill="none"
          stroke={theme === "light" ? "#FFFFFF" : "#0D1117"}
          strokeLinecap="round"
          strokeLinejoin="round"
          strokeWidth={2.6}
        />
      </svg>
    </span>
  );

  return (
    <Fill style={{alignItems: "center", background: colors.page, justifyContent: "center", padding: `${px(70)}px ${px(120)}px`}}>
      <div
        style={{
          fontFamily: FONT,
          maxWidth: px(1460),
          opacity: enter,
          transform: `translateY(${(1 - enter) * px(16)}px)`,
          width: "100%",
        }}
      >
        {/* The title is regular weight with the number in grey, which is how
            GitHub actually sets it; bolding it reads as a mock. */}
        <div style={{color: colors.ink, fontSize: px(58), fontWeight: 400, letterSpacing: "-0.01em", lineHeight: 1.2}}>
          {title} <span style={{color: colors.faint}}>#{number}</span>
        </div>

        <div style={{alignItems: "center", display: "flex", flexWrap: "wrap", gap: px(14), marginTop: px(22)}}>
          <span
            style={{
              alignItems: "center",
              background: colors.open,
              borderRadius: px(999),
              color: "#FFFFFF",
              display: "inline-flex",
              fontSize: px(26),
              fontWeight: 600,
              gap: px(9),
              padding: `${px(9)}px ${px(11)}px ${px(9)}px ${px(11)}px`,
            }}
          >
            <svg viewBox="0 0 16 16" width={px(26)} height={px(26)} fill="#FFFFFF" aria-hidden>
              <path d="M1.5 3.25a2.25 2.25 0 1 1 3 2.122v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.25 2.25 0 0 1 1.5 3.25Zm5.677-.177L9.573.677A.25.25 0 0 1 10 .854V2.5h1A2.5 2.5 0 0 1 13.5 5v5.628a2.251 2.251 0 1 1-1.5 0V5a1 1 0 0 0-1-1h-1v1.646a.25.25 0 0 1-.427.177L7.177 3.427a.25.25 0 0 1 0-.354Z" />
            </svg>
            Open
          </span>
          {/* GitHub puts the author's picture in the byline, and for an
              account without one that picture is an identicon. */}
          {identicon(author, 30, px)}
          <span style={{color: colors.faint, fontSize: px(27)}}>
            <span style={{color: colors.ink, fontWeight: 600}}>{author}</span> wants to merge {commits} commit
            {commits === 1 ? "" : "s"} into {chip(base)} from {chip(branch)}
          </span>
        </div>

        <div style={{color: colors.faint, display: "flex", fontSize: px(24), gap: px(20), marginTop: px(18)}}>
          <span>
            <span style={{color: colors.ink, fontWeight: 600}}>{stats.files}</span> files changed
          </span>
          <span style={{color: SUCCESS, fontWeight: 600}}>+{stats.additions}</span>
          <span style={{color: "#F85149", fontWeight: 600}}>-{stats.deletions}</span>
        </div>

        {/* The merge box, as the bottom of the conversation draws it. */}
        <div
          style={{
            border: `${px(1)}px solid ${colors.edge}`,
            borderRadius: px(10),
            marginTop: px(36),
            overflow: "hidden",
          }}
        >
          <div
            style={{
              alignItems: "center",
              background: colors.card,
              borderBottom: `${px(1)}px solid ${colors.edge}`,
              display: "flex",
              gap: px(16),
              padding: `${px(22)}px ${px(26)}px`,
            }}
          >
            {status(merge)}
            <div>
              <div style={{color: colors.ink, fontSize: px(28), fontWeight: 600}}>
                {allDone ? "All checks have passed" : "Some checks haven’t completed yet"}
              </div>
              <div style={{color: colors.faint, fontSize: px(22), marginTop: px(2)}}>
                {checks.length} check{checks.length === 1 ? "" : "s"}
                {allDone ? " successful" : " running"}
              </div>
            </div>
          </div>

          <div style={{display: "grid"}}>
            {checks.map((check, index) => {
              // Each check resolves on its own beat, and the tick springs in
              // where the spinner was.
              const done = spring({frame, fps, delayInFrames: CHECK_START + index * CHECK_STEP, stiffness: 200, damping: 15});
              const finished = frame >= CHECK_START + index * CHECK_STEP;
              return (
                <div
                  key={check.name}
                  style={{
                    alignItems: "center",
                    borderTop: index === 0 ? "none" : `${px(1)}px solid ${colors.edge}`,
                    display: "flex",
                    gap: px(16),
                    padding: `${px(17)}px ${px(26)}px`,
                  }}
                >
                  {status(done)}
                  <span style={{color: colors.ink, fontSize: px(26), fontWeight: 600}}>{check.name}</span>
                  <span style={{color: colors.faint, fontSize: px(24)}}>
                    {finished ? `Successful${check.detail ? ` in ${check.detail}` : ""}` : "In progress…"}
                  </span>
                  <span style={{color: colors.faint, fontSize: px(24), marginLeft: "auto"}}>Details</span>
                </div>
              );
            })}
          </div>

          <div
            style={{
              alignItems: "center",
              background: colors.card,
              borderTop: `${px(1)}px solid ${colors.edge}`,
              display: "flex",
              gap: px(20),
              padding: `${px(22)}px ${px(26)}px`,
            }}
          >
            {/* GitHub's split button: the action, a seam, then the caret. It
                fills from disabled grey to its green the moment the last
                check lands, which is the frame the cut is waiting for. */}
            <span
              style={{
                background: `color-mix(in srgb, ${GREEN} ${fill * 100}%, ${colors.card})`,
                border: `${px(1)}px solid color-mix(in srgb, rgb(31 35 40 / 0.15) ${fill * 100}%, ${colors.edge})`,
                borderRadius: px(8),
                color: `color-mix(in srgb, #FFFFFF ${fill * 100}%, ${colors.faint})`,
                display: "inline-flex",
                fontSize: px(26),
                fontWeight: 600,
                overflow: "hidden",
              }}
            >
              <span style={{padding: `${px(13)}px ${px(24)}px`}}>Merge pull request</span>
              <span
                style={{
                  alignItems: "center",
                  borderLeft: `${px(1)}px solid color-mix(in srgb, rgb(255 255 255 / 0.4) ${fill * 100}%, ${colors.edge})`,
                  display: "inline-flex",
                  padding: `0 ${px(14)}px`,
                }}
              >
                <svg viewBox="0 0 16 16" width={px(20)} height={px(20)} fill="currentColor" aria-hidden>
                  <path d="M4.25 6l3.75 3.75L11.75 6" fill="none" stroke="currentColor" strokeWidth={1.8} strokeLinecap="round" strokeLinejoin="round" />
                </svg>
              </span>
            </span>
            <span style={{color: colors.faint, fontSize: px(23), opacity: fill}}>
              Merging can be performed automatically.
            </span>
          </div>
        </div>
      </div>
    </Fill>
  );
};

import {defineComponentPreview} from "odori/preview";
import {GithubPr} from "./github-pr";

export default defineComponentPreview({
  title: "GitHub pull request",
  category: "Products",
  description: "A pull request whose checks resolve one at a time and unlock the merge.",
  component: GithubPr,
  canvas: {width: 1920, height: 1080, duration: "7s"},
  controls: {
    title: {type: "text", defaultValue: "Add agent and product surfaces", maxLength: 72},
    number: {type: "number", defaultValue: 128, min: 1, max: 99999, step: 1},
    author: {type: "text", defaultValue: "johndoe", maxLength: 28},
    branch: {type: "text", defaultValue: "feat/agent-surfaces", maxLength: 40},
    base: {type: "text", defaultValue: "main", maxLength: 24},
    theme: {type: "select", defaultValue: "light", options: ["light", "dimmed"]},
  },
  examples: [
    {name: "Default", props: {}},
    {name: "Dimmed", props: {theme: "dimmed"}},
    {
      name: "One check",
      props: {title: "Pin the render toolchain", checks: [{name: "e2e", detail: "3m 12s"}]},
    },
  ],
});

import {Scene, Video} from "odori";
import {GithubPr} from "../components/github-pr/github-pr";

<Video>
  <Scene id="github-pr" duration="7s">
    <GithubPr
      title="Add agent and product surfaces"
      number={128}
      author="johndoe"
      branch="feat/agent-surfaces"
      base="main"
      theme="light"
    />
  </Scene>
</Video>