Pick any line to see why it is the way it is: the commit, the pull request and issue it came from, and what the agent was thinking.
| Chat and workspace agents: channels, DMs and named agents you talk to | 1 | import { Fragment, type ReactNode, useMemo } from "react"; |
| 2 | import { Link } from "react-router"; | |
| 3 | ||
| 4 | import { type Block, type Span, blocks, onlyEmoji } from "../../lib/chat"; | |
| 5 | ||
| 6 | /** How the text's references resolve, from what the page knows. */ | |
| 7 | export type TextContext = { | |
| 8 | slug: string; | |
| 9 | /** The viewer's username: a mention of them stands out more. */ | |
| 10 | me: string | null; | |
| 11 | /** Handles of the workspace's agents: their mentions go to the agent. */ | |
| 12 | agents: ReadonlySet<string>; | |
| 13 | /** Channels by name, for `#name`. */ | |
| 14 | channels: ReadonlySet<string>; | |
| 15 | /** The project `#123` means when no repository is named, if any. */ | |
| 16 | project: string | null; | |
| 17 | /** Where a link into Code goes instead, for a member without Code access. */ | |
| 18 | codeLink?: (href: string) => string; | |
| 19 | }; | |
| 20 | ||
| 21 | const PILL = "rounded-[4px] px-1 py-px font-medium"; | |
| 22 | ||
| 23 | function SpanView({ span, context }: { span: Span; context: TextContext }): ReactNode { | |
| 24 | switch (span.t) { | |
| 25 | case "text": | |
| 26 | return span.v; | |
| 27 | case "code": | |
| 28 | return <code className="rounded-[4px] border border-line bg-raised px-1 py-px font-mono text-[0.84em] text-fg-soft">{span.v}</code>; | |
| 29 | case "strong": | |
| 30 | return <strong className="font-semibold text-fg">{spans(span.c, context)}</strong>; | |
| 31 | case "em": | |
| 32 | return <em>{spans(span.c, context)}</em>; | |
| 33 | case "del": | |
| 34 | return <del className="text-muted">{spans(span.c, context)}</del>; | |
| 35 | case "link": { | |
| 36 | if (span.href.startsWith("/")) { | |
| 37 | return ( | |
| 38 | <Link to={context.codeLink ? context.codeLink(span.href) : span.href} className="text-accent underline-offset-2 hover:underline"> | |
| 39 | {spans(span.c, context)} | |
| 40 | </Link> | |
| 41 | ); | |
| 42 | } | |
| 43 | return ( | |
| 44 | <a href={span.href} target="_blank" rel="noopener noreferrer nofollow ugc" className="text-accent underline-offset-2 hover:underline"> | |
| 45 | {spans(span.c, context)} | |
| 46 | </a> | |
| 47 | ); | |
| 48 | } | |
| 49 | case "mention": { | |
| 50 | const name = span.name.toLowerCase(); | |
| 51 | const self = context.me != null && name === context.me.toLowerCase(); | |
| 52 | const agent = context.agents.has(name); | |
| 53 | const to = agent ? `/${context.slug}/-/agents/${name}` : name.includes("/") ? `/${context.slug}/-/teams/${name.split("/")[1]}` : `/u/${name}`; | |
| 54 | return ( | |
| 55 | <Link | |
| 56 | to={to} | |
| 57 | className={`${PILL} transition-colors ${ | |
| 58 | self ? "bg-warn/20 text-warn hover:bg-warn/30" : "bg-accent/15 text-accent hover:bg-accent/25" | |
| 59 | }`} | |
| 60 | > | |
| 61 | @{span.name} | |
| 62 | </Link> | |
| 63 | ); | |
| 64 | } | |
| 65 | case "channel": | |
| 66 | return context.channels.has(span.name) ? ( | |
| 67 | <Link to={`/${context.slug}/-/chat/${span.name}`} className={`${PILL} bg-accent/10 text-accent hover:bg-accent/20`}> | |
| 68 | #{span.name} | |
| 69 | </Link> | |
| 70 | ) : ( | |
| 71 | `#${span.name}` | |
| 72 | ); | |
| 73 | case "ref": { | |
| 74 | const repo = span.repo ? (span.repo.includes("/") ? span.repo : `${context.slug}/${span.repo}`) : context.project ? `${context.slug}/${context.project}` : null; | |
| 75 | const label = `${span.repo ? span.repo : ""}#${span.number}`; | |
| 76 | if (!repo) return <span className="font-medium text-fg-soft">{label}</span>; | |
| 77 | // Issues and pull requests share numbers; the issue page sends a pull on. | |
| 78 | const href = `/${repo}/issues/${span.number}`; | |
| 79 | return ( | |
| 80 | <Link to={context.codeLink ? context.codeLink(href) : href} className="font-medium text-accent hover:underline"> | |
| 81 | {label} | |
| 82 | </Link> | |
| 83 | ); | |
| 84 | } | |
| 85 | } | |
| 86 | } | |
| 87 | ||
| 88 | function spans(list: Span[], context: TextContext): ReactNode { | |
| 89 | return list.map((span, index) => <SpanView key={index} span={span} context={context} />); | |
| 90 | } | |
| 91 | ||
| 92 | function lines(list: Span[][], context: TextContext): ReactNode { | |
| 93 | return list.map((line, index) => ( | |
| 94 | <Fragment key={index}> | |
| 95 | {index > 0 && <br />} | |
| 96 | {spans(line, context)} | |
| 97 | </Fragment> | |
| 98 | )); | |
| 99 | } | |
| 100 | ||
| 101 | function BlockView({ block, context }: { block: Block; context: TextContext }) { | |
| 102 | switch (block.t) { | |
| 103 | case "p": | |
| 104 | return <p>{lines(block.lines, context)}</p>; | |
| 105 | case "code": | |
| 106 | return ( | |
| 107 | <pre className="my-1 overflow-x-auto rounded-md border border-line bg-bg px-3 py-2 font-mono text-[0.8125rem] leading-relaxed text-fg-soft [scrollbar-width:thin]"> | |
| 108 | <code>{block.v}</code> | |
| 109 | </pre> | |
| 110 | ); | |
| 111 | case "list": { | |
| 112 | const Tag = block.ordered ? "ol" : "ul"; | |
| 113 | return ( | |
| 114 | <Tag className={`my-0.5 space-y-0.5 pl-5 ${block.ordered ? "list-decimal" : "list-disc"} marker:text-faint`}> | |
| 115 | {block.items.map((item, index) => ( | |
| 116 | <li key={index}>{spans(item, context)}</li> | |
| 117 | ))} | |
| 118 | </Tag> | |
| 119 | ); | |
| 120 | } | |
| 121 | case "quote": | |
| 122 | return <blockquote className="border-l-2 border-line-strong pl-3 text-muted">{lines(block.lines, context)}</blockquote>; | |
| 123 | } | |
| 124 | } | |
| 125 | ||
| 126 | /** A message's text, rendered from parsed blocks: never as HTML. */ | |
| 127 | export function MessageText({ body, context }: { body: string; context: TextContext }) { | |
| 128 | const parsed = useMemo(() => blocks(body), [body]); | |
| 129 | if (onlyEmoji(body)) return <p className="text-3xl leading-tight">{body.trim()}</p>; | |
| 130 | return ( | |
| 131 | <div className="space-y-1.5 text-[0.9375rem] leading-[1.55] break-words text-fg-soft"> | |
| 132 | {parsed.map((block, index) => ( | |
| 133 | <BlockView key={index} block={block} context={context} /> | |
| 134 | ))} | |
| 135 | </div> | |
| 136 | ); | |
| 137 | } |
