| 1 | "use client"; |
| 2 | |
| 3 | import { Virtualizer } from |
| 4 | import { |
| 5 | PatchDiff, |
| 6 | type SelectedLineRange, |
| 7 | VirtualizerContext, |
| 8 | } from "@pierre/diffs/react"; |
| 9 | import { useEffect, useMemo |
| 10 | |
| 11 | import { DiffsProvider } |
| 12 | import { Skeleton } |
| 13 | |
| 14 | import type { LazyFileDiffProps, |
| 15 | |
| 16 | const diffOptions = { |
| 17 | theme: { light: " |
| 18 | diffStyle: "split", |
| 19 | } as const; |
| 20 | |
| 21 | export function FileDiffs({ |
| 22 | patchUrl, |
| 23 | files, |
| 24 | annotations, |
| 25 | onLineComment, |
| 26 | }: LazyFileDiffsProps) |
| 27 | // The page itself is the scroll container, so the virtualizer is built here rather than with the library's own scroll-box component. |
| 28 | const [virtualizer] |
| 29 | typeof window === " |
| 30 | ); |
| 31 | |
| 32 | useEffect(() => |
| 33 | virtualizer?.setup(document |
| 34 | return () => |
| 35 | }, [virtualizer]); |
| 36 | |
| 37 | return ( |
| 38 | <DiffsProvider> |
| 39 | <VirtualizerContext.Provider value={ |
| 40 | <div className="flex flex-col gap-4 |
| 41 | {files.map(( |
| 42 | <LazyFileDiff |
| 43 | key={file.path |
| 44 | patchUrl={patchUrl} |
| 45 | file={file} |
| 46 | annotations={annotations?.[ |
| 47 | onLineComment={onLineComment} |
| 48 | /> |
| 49 | ))} |
| 50 | </div> |
| 51 | </VirtualizerContext.Provider> |
| 52 | </DiffsProvider> |
| 53 | ); |
| 54 | } |
| 55 | |
| 56 | /** A patch of thousands of files is tens of megabytes, so each file is fetched on its own once it comes near the viewport. */ |
| 57 | function LazyFileDiff({ |
| 58 | patchUrl, |
| 59 | file, |
| 60 | annotations, |
| 61 | onLineComment, |
| 62 | }: LazyFileDiffProps) |
| 63 | const container = |
| 64 | const [patch, |
| 65 | const [failed, |
| 66 | const options = |
| 67 | () => |
| 68 | onLineComment |
| 69 | ? { |
| 70 | ...diffOptions, |
| 71 | enableGutterUtility: true, |
| 72 | onGutterUtilityClick: (range: |
| 73 | onLineComment(file.path |
| 74 | } |
| 75 | : diffOptions, |
| 76 | [onLineComment, file. |
| 77 | ); |
| 78 | |
| 79 | useEffect(() => |
| 80 | const node = |
| 81 | if (!node || |
| 82 | |
| 83 | const controller = |
| 84 | const observer = |
| 85 | ([entry]) => |
| 86 | if (!entry.isIntersecting |
| 87 | observer.disconnect(); |
| 88 | |
| 89 | const url = |
| 90 | url.searchParams.set |
| 91 | |
| 92 | fetch(url, { |
| 93 | .then((response) |
| 94 | if (!response.ok |
| 95 | return response.text |
| 96 | }) |
| 97 | .then(setPatch) |
| 98 | .catch(() => |
| 99 | if (!controller.signal |
| 100 | }); |
| 101 | }, |
| 102 | { rootMargin: "800px 0px" |
| 103 | ); |
| 104 | |
| 105 | observer.observe(node |
| 106 | return () => |
| 107 | observer.disconnect(); |
| 108 | controller.abort(); |
| 109 | }; |
| 110 | }, [patchUrl, |
| 111 | |
| 112 | return ( |
| 113 | <div ref={container |
| 114 | {patch ? ( |
| 115 | <PatchDiff |
| 116 | patch={patch} |
| 117 | options={options} |
| 118 | lineAnnotations={annotations} |
| 119 | renderAnnotation={(annotation) |
| 120 | /> |
| 121 | ) : ( |
| 122 | <div className="flex flex-col gap-2 rounded-lg border p-4 |
| 123 | <span className="font-mono text-xs text-muted-foreground |
| 124 | {file.path} |
| 125 | </span> |
| 126 | {file.binary ? |
| 127 | <span className="text-xs text-muted-foreground |
| 128 | Binary file not shown |
| 129 | </span> |
| 130 | ) : failed ? |
| 131 | <span className="text-xs text-muted-foreground |
| 132 | Could not load this diff. |
| 133 | </span> |
| 134 | ) : ( |
| 135 | <Skeleton className=" |
| 136 | )} |
| 137 | </div> |
| 138 | )} |
| 139 | </div> |
| 140 | ); |
| 141 | } |