bitbybit · January 16, 2025 16:15
diff --git a/README.md b/README.md
diff --git a/index.ts b/index.ts
 import { readFile, writeFile } from 'node:fs/promises';

 const pathToHistoryFile = `${import.meta.dirname}/../../history.txt`
 const pathToNewImportFile = `${import.meta.dirname}/../../history.json`

 type ExportEntry = {
  date: Date
  title: string
  url: string
 }

 type ImportEntry = {
  id: string
  url: string
  title: string | null
  lastVisitTime: number
  visitCount: number
 }

 const rawHistory = await readFile(
  pathToHistoryFile,
  'utf8'
 )

 const listHistory = rawHistory.split('\n')

 const historyToExportEntry = (historyLine: string): ExportEntry => {
  const url = historyLine.split(' ').at(-1) ?? null

  if (url === null) {
    throw new Error(`No URL: ${historyLine}`)
  }

  const dateMatch = RegExp(
    /\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}/
  ).exec(historyLine)

  const dateString = dateMatch?.[0] ?? null

  if (dateString === null) {
    throw new Error(`No date: ${historyLine}`)
  }

  const date = new Date(dateString)

  const title = historyLine.slice(
    dateString.length + 1,
    historyLine.indexOf(url) - 1
  )

  return {
    date,
    title,
    url
  }
 }

 const exportEntries = listHistory.map(historyToExportEntry)

 const importEntryToExportEntry = ({
  entries,
  lastId
 }: {
  entries: ImportEntry[],
  lastId: number
 }, {
  date,
  title,
  url
 }: ExportEntry): {
  entries: ImportEntry[],
  lastId: number
 } => ({
  lastId: lastId += 1,
  entries: [
    ...entries,
    {
      id: String(lastId),
      url,
      title,
      lastVisitTime: date.getTime(),
      visitCount: 1
    }
  ]
 })

 const result = exportEntries.reduce(importEntryToExportEntry, {
  lastId: 0,
  entries: []
 })

 await writeFile(pathToNewImportFile, JSON.stringify(result.entries, null, 2))
diff --git a/package.json b/package.json
 {
  "name": "firefox-import",
  "version": "1.0.0",
  "description": "",
  "main": "dist/index.js",
  "scripts": {
    "build": "tsc"
  },
  "type": "module",
  "devDependencies": {
    "@types/node": "^22.10.7",
    "typescript": "^5.5.3"
  },
  "private": true
 }
diff --git a/tsconfig.json b/tsconfig.json
 {
  "compilerOptions": {
    "target": "esnext",
    "module": "nodenext",
    "moduleResolution": "nodenext",
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "skipLibCheck": true,
    "outDir": "dist"
  },
  "include": ["src"],
  "exclude": ["node_modules"]
 }
	import { readFile, writeFile } from 'node:fs/promises';

	const pathToHistoryFile = `${import.meta.dirname}/../../history.txt`
	const pathToNewImportFile = `${import.meta.dirname}/../../history.json`

	type ExportEntry = {
	date: Date
	title: string
	url: string
	}

	type ImportEntry = {
	id: string
	url: string
	title: string \| null
	lastVisitTime: number
	visitCount: number
	}

	const rawHistory = await readFile(
	pathToHistoryFile,
	'utf8'
	)

	const listHistory = rawHistory.split('\n')

	const historyToExportEntry = (historyLine: string): ExportEntry => {
	const url = historyLine.split(' ').at(-1) ?? null

	if (url === null) {
	throw new Error(`No URL: ${historyLine}`)
	}

	const dateMatch = RegExp(
	/\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}/
	).exec(historyLine)

	const dateString = dateMatch?.[0] ?? null

	if (dateString === null) {
	throw new Error(`No date: ${historyLine}`)
	}

	const date = new Date(dateString)

	const title = historyLine.slice(
	dateString.length + 1,
	historyLine.indexOf(url) - 1
	)

	return {
	date,
	title,
	url
	}
	}

	const exportEntries = listHistory.map(historyToExportEntry)

	const importEntryToExportEntry = ({
	entries,
	lastId
	}: {
	entries: ImportEntry[],
	lastId: number
	}, {
	date,
	title,
	url
	}: ExportEntry): {
	entries: ImportEntry[],
	lastId: number
	} => ({
	lastId: lastId += 1,
	entries: [
	...entries,
	{
	id: String(lastId),
	url,
	title,
	lastVisitTime: date.getTime(),
	visitCount: 1
	}
	]
	})

	const result = exportEntries.reduce(importEntryToExportEntry, {
	lastId: 0,
	entries: []
	})

	await writeFile(pathToNewImportFile, JSON.stringify(result.entries, null, 2))
	{
	"name": "firefox-import",
	"version": "1.0.0",
	"description": "",
	"main": "dist/index.js",
	"scripts": {
	"build": "tsc"
	},
	"type": "module",
	"devDependencies": {
	"@types/node": "^22.10.7",
	"typescript": "^5.5.3"
	},
	"private": true
	}
	{
	"compilerOptions": {
	"target": "esnext",
	"module": "nodenext",
	"moduleResolution": "nodenext",
	"esModuleInterop": true,
	"forceConsistentCasingInFileNames": true,
	"strict": true,
	"skipLibCheck": true,
	"outDir": "dist"
	},
	"include": ["src"],
	"exclude": ["node_modules"]
	}