From c0a35141e6b70eed1a9ba576fe43b7f7d690b968 Mon Sep 17 00:00:00 2001
From: Adam <2363879+adamdotdevin@users.noreply.github.com>
Date: Tue, 2 Dec 2025 06:50:16 -0600
Subject: feat: better code and diff rendering performance

---
 packages/ui/src/pierre/index.ts  | 77 ++++++++++++++++++++++++++++++++++++++++
 packages/ui/src/pierre/worker.ts |  5 +++
 2 files changed, 82 insertions(+)
 create mode 100644 packages/ui/src/pierre/index.ts
 create mode 100644 packages/ui/src/pierre/worker.ts

(limited to 'packages/ui/src/pierre')

diff --git a/packages/ui/src/pierre/index.ts b/packages/ui/src/pierre/index.ts
new file mode 100644
index 000000000..26e902d05
--- /dev/null
+++ b/packages/ui/src/pierre/index.ts
@@ -0,0 +1,77 @@
+import { DiffLineAnnotation, FileContents, FileDiffOptions } from "@pierre/precision-diffs"
+import { ComponentProps } from "solid-js"
+
+export type DiffProps<T = {}> = FileDiffOptions<T> & {
+  before: FileContents
+  after: FileContents
+  annotations?: DiffLineAnnotation<T>[]
+  class?: string
+  classList?: ComponentProps<"div">["classList"]
+}
+
+export function createDefaultOptions<T>(style: FileDiffOptions<T>["diffStyle"]) {
+  return {
+    theme: "OpenCode",
+    themeType: "system",
+    disableLineNumbers: false,
+    overflow: "wrap",
+    diffStyle: style ?? "unified",
+    diffIndicators: "bars",
+    disableBackground: false,
+    expansionLineCount: 20,
+    lineDiffType: style === "split" ? "word-alt" : "none",
+    maxLineDiffLength: 1000,
+    maxLineLengthForHighlighting: 1000,
+    disableFileHeader: true,
+    unsafeCSS: `
+[data-pjs-header],
+[data-pjs] {
+  [data-separator-wrapper] {
+    margin: 0 !important;
+    border-radius: 0 !important;
+  }
+  [data-expand-button] {
+    width: 6.5ch !important;
+    height: 24px !important;
+    justify-content: end !important;
+    padding-left: 3ch !important;
+    padding-inline: 1ch !important;
+  }
+  [data-separator-multi-button] {
+    grid-template-rows: 10px 10px !important;
+    [data-expand-button] {
+      height: 12px !important;
+    }
+  }
+  [data-separator-content] {
+    height: 24px !important;
+  }
+}`,
+    // hunkSeparators(hunkData: HunkData) {
+    //   const fragment = document.createDocumentFragment()
+    //   const numCol = document.createElement("div")
+    //   numCol.innerHTML = `<svg data-slot="diff-hunk-separator-line-number-icon" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M8.97978 14.0204L8.62623 13.6668L9.33334 12.9597L9.68689 13.3133L9.33333 13.6668L8.97978 14.0204ZM12 16.3335L12.3535 16.6871L12 17.0406L11.6464 16.687L12 16.3335ZM14.3131 13.3133L14.6667 12.9597L15.3738 13.6668L15.0202 14.0204L14.6667 13.6668L14.3131 13.3133ZM12.5 16.0002V16.5002H11.5V16.0002H12H12.5ZM9.33333 13.6668L9.68689 13.3133L12.3535 15.9799L12 16.3335L11.6464 16.687L8.97978 14.0204L9.33333 13.6668ZM12 16.3335L11.6464 15.9799L14.3131 13.3133L14.6667 13.6668L15.0202 14.0204L12.3535 16.6871L12 16.3335ZM6.5 8.00016V7.50016H8.5V8.00016V8.50016H6.5V8.00016ZM9.5 8.00016V7.50016H11.5V8.00016V8.50016H9.5V8.00016ZM12.5 8.00016V7.50016H14.5V8.00016V8.50016H12.5V8.00016ZM15.5 8.00016V7.50016H17.5V8.00016V8.50016H15.5V8.00016ZM12 10.5002H12.5V16.0002H12H11.5V10.5002H12Z" fill="currentColor"/></svg> `
+    //   numCol.dataset["slot"] = "diff-hunk-separator-line-number"
+    //   fragment.appendChild(numCol)
+    //   const contentCol = document.createElement("div")
+    //   contentCol.dataset["slot"] = "diff-hunk-separator-content"
+    //   const span = document.createElement("span")
+    //   span.dataset["slot"] = "diff-hunk-separator-content-span"
+    //   span.textContent = `${hunkData.lines} unmodified lines`
+    //   contentCol.appendChild(span)
+    //   fragment.appendChild(contentCol)
+    //   return fragment
+    // },
+  } as const
+}
+
+export const styleVariables = {
+  "--pjs-font-family": "var(--font-family-mono)",
+  "--pjs-font-size": "var(--font-size-small)",
+  "--pjs-line-height": "24px",
+  "--pjs-tab-size": 2,
+  "--pjs-font-features": "var(--font-family-mono--font-feature-settings)",
+  "--pjs-header-font-family": "var(--font-family-sans)",
+  "--pjs-gap-block": 0,
+  "--pjs-min-number-column-width": "4ch",
+}
diff --git a/packages/ui/src/pierre/worker.ts b/packages/ui/src/pierre/worker.ts
new file mode 100644
index 000000000..de5fd625a
--- /dev/null
+++ b/packages/ui/src/pierre/worker.ts
@@ -0,0 +1,5 @@
+import ShikiWorkerUrl from "@pierre/precision-diffs/worker/shiki-worker.js?worker&url"
+
+export function workerFactory(): Worker {
+  return new Worker(ShikiWorkerUrl, { type: "module" })
+}
-- 
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