tldraw/apps/docs/scripts/functions/getApiMarkdown.ts
Mime Čuvalo 63e3d6dfc9
docs: more cleanup following restructure (#2702)
- add TOC for Reference section
- make external links use _blank to open a new tab
- fix some more /gen links spots I missed, oops
- add a general redirect from old /gen links → /reference
- some more stylistic touchups

### Change Type

- [x] `documentation` — Changes to the documentation only[^2]

### Release Notes

- Docs: further cleanup following restructure.
2024-02-01 14:16:17 +00:00

427 lines
12 KiB
TypeScript

import {
ApiClass,
ApiConstructSignature,
ApiConstructor,
ApiDeclaredItem,
ApiDocumentedItem,
ApiEnum,
ApiFunction,
ApiInterface,
ApiItem,
ApiItemKind,
ApiMethod,
ApiMethodSignature,
ApiNamespace,
ApiProperty,
ApiPropertySignature,
ApiReadonlyMixin,
ApiReleaseTagMixin,
ApiStaticMixin,
ApiTypeAlias,
ApiVariable,
Excerpt,
ReleaseTag,
} from '@microsoft/api-extractor-model'
import { MarkdownWriter, formatWithPrettier, getPath, getSlug } from '../utils'
type Result = { markdown: string; keywords: string[] }
const REPO_URL = 'https://github.com/tldraw/tldraw/blob/main/'
const date = new Intl.DateTimeFormat('en-US', {
year: 'numeric',
month: '2-digit',
day: '2-digit',
}).format(new Date())
export async function getApiMarkdown(categoryName: string, item: ApiItem, j: number) {
const result: Result = { markdown: '', keywords: [] }
const toc: Result = { markdown: '', keywords: [] }
const membersResult: Result = { markdown: '', keywords: [] }
if (item.members) {
const constructors = []
const properties = []
const methods = []
for (const member of item.members) {
switch (member.kind) {
case ApiItemKind.Constructor:
case ApiItemKind.ConstructSignature:
constructors.push(member)
break
case ApiItemKind.Variable:
case ApiItemKind.Property:
case ApiItemKind.PropertySignature:
properties.push(member)
break
case ApiItemKind.Method:
case ApiItemKind.Function:
case ApiItemKind.MethodSignature:
methods.push(member)
break
case ApiItemKind.EnumMember:
case ApiItemKind.Class:
case ApiItemKind.TypeAlias:
case ApiItemKind.Interface:
// TODO: document these
break
default:
throw new Error(`Unknown member kind: ${member.kind} ${member.displayName}`)
}
}
const constructorResult: Result = { markdown: '', keywords: [] }
const propertiesResult: Result = { markdown: '', keywords: [] }
const methodsResult: Result = { markdown: '', keywords: [] }
if (constructors.length) {
for (const member of constructors) {
await addMarkdownForMember(constructorResult, member)
addHorizontalRule(constructorResult)
}
addMarkdown(membersResult, constructorResult.markdown)
}
if (properties.length) {
addMarkdown(toc, `- [Properties](#properties)\n`)
addMarkdown(propertiesResult, `## Properties\n\n`)
for (const member of properties) {
const slug = getSlug(member)
addMarkdown(toc, ` - [${member.displayName}](#${slug})\n`)
await addMarkdownForMember(propertiesResult, member)
addHorizontalRule(propertiesResult)
}
addMarkdown(membersResult, propertiesResult.markdown)
}
if (methods.length) {
addMarkdown(toc, `- [Methods](#methods)\n`)
addMarkdown(methodsResult, `## Methods\n\n`)
for (const member of methods) {
const slug = getSlug(member)
addMarkdown(toc, ` - [${member.displayName}](#${slug})\n`)
await addMarkdownForMember(methodsResult, member)
addHorizontalRule(methodsResult)
}
addMarkdown(membersResult, methodsResult.markdown)
}
}
await addFrontmatter(result, item, categoryName, j)
if (toc.markdown.length) {
result.markdown += `<details className="article__table-of-contents">\n\t<summary>Table of contents</summary>\n`
addMarkdown(result, toc.markdown)
result.markdown += `</details>\n\n`
}
addTags(result, item)
await addDocComment(result, item)
addReferences(result, item)
addLinkToSource(result, item)
if (membersResult.markdown.length) {
addHorizontalRule(result)
addMarkdown(result, membersResult.markdown)
}
return result
}
/* --------------------- Helpers -------------------- */
function addMarkdown(result: Result, markdown: string) {
result.markdown += markdown
}
async function addMarkdownForMember(result: Result, member: ApiItem) {
if (member.displayName.startsWith('_')) return
addMemberName(result, member)
addTags(result, member)
await addDocComment(result, member)
addReferences(result, member)
addLinkToSource(result, member)
}
async function addFrontmatter(
result: Result,
member: ApiItem,
categoryName: string,
order: number
) {
let description = ''
if (member instanceof ApiDocumentedItem && member.tsdocComment) {
const comment = await MarkdownWriter.docNodeToMarkdown(
member,
member.tsdocComment.summarySection
)
// only up to the first newline
description = comment.trim().split('\n')[0].replace(/:/g, '')
}
let kw = ''
if (result.keywords.length) {
kw += `\nkeywords:`
for (const k of result.keywords) {
if (k.startsWith('_')) continue
kw += `\n - ${k.trim().split('\n')[0]}`
}
}
result.markdown += `---
title: ${member.displayName}
status: published
description: ${description}
category: ${categoryName}
group: ${member.kind}
author: api
date: ${date}
order: ${order}
sourceUrl: ${'_fileUrlPath' in member ? member._fileUrlPath : ''}${kw}
---
`
}
function addHorizontalRule(result: Result) {
result.markdown += `---\n\n`
}
function addMemberName(result: Result, member: ApiItem) {
if (member.kind === 'Constructor') {
result.markdown += `### Constructor\n\n`
return
}
if (!member.displayName) return
result.markdown += `### \`${member.displayName}${member.kind === 'Method' ? '()' : ''}\`\n\n`
}
async function addDocComment(result: Result, member: ApiItem) {
if (!(member instanceof ApiDocumentedItem)) {
return
}
if (member.tsdocComment) {
result.markdown += await MarkdownWriter.docNodeToMarkdown(
member,
member.tsdocComment.summarySection
)
const exampleBlocks = member.tsdocComment.customBlocks.filter(
(block) => block.blockTag.tagNameWithUpperCase === '@EXAMPLE'
)
if (exampleBlocks.length) {
result.markdown += `\n\n`
result.markdown += `##### Example\n\n`
for (const example of exampleBlocks) {
result.markdown += await MarkdownWriter.docNodeToMarkdown(member, example.content)
}
}
}
if (
member instanceof ApiVariable ||
member instanceof ApiTypeAlias ||
member instanceof ApiProperty ||
member instanceof ApiPropertySignature ||
member instanceof ApiClass ||
member instanceof ApiFunction ||
member instanceof ApiInterface ||
member instanceof ApiEnum ||
member instanceof ApiNamespace ||
member instanceof ApiMethod
) {
result.markdown += `<ApiHeading>Signature</ApiHeading>\n\n`
result.markdown += await typeExcerptToMarkdown(member.excerpt, {
kind: member.kind,
})
result.markdown += `\n\n`
}
if (
member instanceof ApiMethod ||
member instanceof ApiMethodSignature ||
member instanceof ApiConstructor ||
member instanceof ApiConstructSignature ||
member instanceof ApiFunction
) {
if (!member.parameters.length) {
return
} else {
result.markdown += `<ApiHeading>Parameters</ApiHeading>\n\n`
result.markdown += '<ParametersTable>\n\n'
for (const param of member.parameters) {
result.markdown += '<ParametersTableRow>\n'
result.markdown += '<ParametersTableName>\n\n'
result.markdown += `\`${param.name}\`\n\n`
result.markdown += `</ParametersTableName>\n`
result.markdown += `<ParametersTableDescription>\n\n`
result.markdown += await typeExcerptToMarkdown(param.parameterTypeExcerpt, {
kind: 'ParameterType',
printWidth: 60,
})
result.markdown += `\n\n`
if (param.tsdocParamBlock) {
result.markdown += await MarkdownWriter.docNodeToMarkdown(
member,
param.tsdocParamBlock.content
)
}
result.markdown += `\n\n</ParametersTableDescription>\n`
result.markdown += `</ParametersTableRow>\n`
}
result.markdown += '</ParametersTable>\n\n'
}
if (!(member instanceof ApiConstructor)) {
result.markdown += `<ApiHeading>Returns</ApiHeading>\n\n`
result.markdown += await typeExcerptToMarkdown(member.returnTypeExcerpt, {
kind: 'ReturnType',
})
result.markdown += `\n\n`
if (member.tsdocComment && member.tsdocComment.returnsBlock) {
result.markdown += await MarkdownWriter.docNodeToMarkdown(
member,
member.tsdocComment.returnsBlock.content
)
}
}
} else if (
member instanceof ApiVariable ||
member instanceof ApiTypeAlias ||
member instanceof ApiProperty ||
member instanceof ApiPropertySignature ||
member instanceof ApiClass ||
member instanceof ApiInterface ||
member instanceof ApiEnum ||
member instanceof ApiNamespace
) {
const params = member.tsdocComment?.params
if (params && params.count > 0) {
result.markdown += `<ApiHeading>Parameters</ApiHeading>\n\n`
result.markdown += '<ParametersTable>\n\n'
for (const block of params.blocks) {
result.markdown += '<ParametersTableRow>\n'
result.markdown += '<ParametersTableName>\n\n'
result.markdown += `\`${block.parameterName}\`\n\n`
result.markdown += `</ParametersTableName>\n`
result.markdown += `<ParametersTableDescription>\n\n`
result.markdown += await MarkdownWriter.docNodeToMarkdown(member, block.content)
result.markdown += `\n\n</ParametersTableDescription>\n`
result.markdown += `</ParametersTableRow>\n`
}
result.markdown += '</ParametersTable>\n\n'
}
} else {
throw new Error('unknown member kind: ' + member.kind)
}
}
async function typeExcerptToMarkdown(
excerpt: Excerpt,
{ kind, printWidth }: { kind: ApiItemKind | 'ReturnType' | 'ParameterType'; printWidth?: number }
) {
let code = ''
for (const token of excerpt.spannedTokens) {
code += token.text
}
code = code.replace(/^export /, '')
code = code.replace(/^declare /, '')
switch (kind) {
case ApiItemKind.CallSignature:
case ApiItemKind.EntryPoint:
case ApiItemKind.EnumMember:
case ApiItemKind.Function:
case ApiItemKind.Model:
case ApiItemKind.Namespace:
case ApiItemKind.None:
case ApiItemKind.Package:
case ApiItemKind.TypeAlias:
code = await formatWithPrettier(code, { printWidth })
break
case 'ReturnType':
case 'ParameterType':
code = await formatWithPrettier(`type X = () =>${code}`, { printWidth })
if (!code.startsWith('type X = () =>')) {
throw Error()
}
code = code = code.replace(/^type X = \(\) =>[ \n]/, '')
break
case ApiItemKind.Class:
case ApiItemKind.Enum:
case ApiItemKind.Interface:
code = await formatWithPrettier(`${code} {}`, { printWidth })
break
case ApiItemKind.Constructor:
case ApiItemKind.ConstructSignature:
case ApiItemKind.IndexSignature:
case ApiItemKind.Method:
case ApiItemKind.MethodSignature:
case ApiItemKind.Property:
case ApiItemKind.PropertySignature:
case ApiItemKind.Variable:
code = await formatWithPrettier(`class X { ${code} }`, { printWidth })
if (!(code.startsWith('class X {\n') && code.endsWith('\n}'))) {
throw Error()
}
code = code.slice('class X {\n'.length, -'\n}'.length)
code = code.replace(/^ {2}/gm, '')
break
default:
throw Error()
}
return ['```ts', code, '```'].join('\n')
}
function addTags(result: Result, member: ApiItem) {
const tags = []
if (ApiReleaseTagMixin.isBaseClassOf(member)) {
tags.push(ReleaseTag[member.releaseTag])
}
if (ApiStaticMixin.isBaseClassOf(member) && member.isStatic) {
tags.push('static')
}
if (ApiReadonlyMixin.isBaseClassOf(member) && member.isReadonly) {
tags.push('readonly')
}
tags.push(member.kind.toLowerCase())
result.markdown += `<Small>${tags.join(' ')}</Small>\n\n`
}
function addReferences(result: Result, member: ApiItem) {
if (!(member instanceof ApiDeclaredItem)) return
const references = new Set<string>()
member.excerptTokens.forEach((token) => {
if (token.kind !== 'Reference') return
const apiItemResult = member
.getAssociatedModel()!
.resolveDeclarationReference(token.canonicalReference!, member)
if (apiItemResult.errorMessage) {
return
}
const apiItem = apiItemResult.resolvedApiItem!
const url = `/reference/${getPath(apiItem)}`
references.add(`[${token.text}](${url})`)
})
if (references.size) {
result.markdown += `<ApiHeading>References</ApiHeading>\n\n`
result.markdown += Array.from(references).join(', ') + '\n\n'
}
}
function addLinkToSource(result: Result, member: ApiItem) {
if ('_fileUrlPath' in member && member._fileUrlPath) {
result.markdown += `<ApiHeading>Source</ApiHeading>\n\n`
result.markdown += `[${member._fileUrlPath}](${REPO_URL}${member._fileUrlPath})\n\n`
}
}