move store in local storage

components/App.tsx

@@ -3,8 +3,10 @@ import LetterOptions from './LetterOptions'
 import Button from './Button'
 import Preview from './Preview'
 import LatestList from './LatestList'
-import { generatePdf, getLatest, removeLatest } from './apiHelper'
-import { ILatest } from '../interfaces/ILatest'
+import { generatePdf } from './apiHelper'
+import { addDocument, removeDocument, getDocuments } from '../lib/dataStore'
+import { getDocuments as getLatestDocuments } from '../lib/dataStore'
+import { IStoreItem } from '../interfaces/IStoreItem'
 import { IDocProps } from '../interfaces/IDocProps'
 
 export default function App() {
@@ -27,21 +29,13 @@ export default function App() {
     yourRef: '',
     yourRefName: '',
   })
-  const [latest, setLatest] = useState<ILatest[]>([])
+  const [storeData, setStoreData] = useState<IStoreItem[]>([])
   const [pdfUrl, setPdfUrl] = useState<string | null>(null)
   const [pdfIsLoading, setPdfIsLoading] = useState<boolean>(false)
   const [pdfError, setPdfError] = useState<string | null>(null)
 
   useEffect(() => {
-    async function getLatestEffect() {
-      try {
-        const latest = await getLatest()
-        setLatest(latest)
-      } catch (err) {
-        console.error('Unable to get latest:', err)
-      }
-    }
-    getLatestEffect()
+    setStoreData(getDocuments())
   }, [pdfUrl])
 
   const _onChange = (name: string, event: React.ChangeEvent<{ value: string }>) => {
@@ -52,13 +46,13 @@ export default function App() {
     setOptions({ ...options, [name]: value })
   }
 
-  const _onSelectLatest = (selectedOption: ILatest) => {
+  const _onSelectLatest = (selectedOption: IStoreItem) => {
     setOptions({ ...selectedOption })
   }
 
-  const _onRemoveLatest = async (item: ILatest) => {
-    await removeLatest(item)
-    setLatest(latest.filter((curr) => curr.id !== item.id))
+  const _onRemoveLatest = async (item: IStoreItem) => {
+    removeDocument(item.id)
+    setStoreData(getLatestDocuments())
   }
 
   const _onClear = () => {
@@ -70,7 +64,8 @@ export default function App() {
     setPdfError(null)
 
     try {
-      const url = await generatePdf(options)
+      const { url, data } = await generatePdf(options)
+      addDocument(data)
       setPdfIsLoading(false)
       setPdfUrl(url)
     } catch (error) {
@@ -90,7 +85,7 @@ export default function App() {
         </div>
         <Preview pdfUrl={pdfUrl} pdfIsLoading={pdfIsLoading} pdfError={pdfError} />
       </div>
-      <LatestList latest={latest} onSelect={_onSelectLatest} onRemove={_onRemoveLatest} />
+      <LatestList storeData={storeData} onSelect={_onSelectLatest} onRemove={_onRemoveLatest} />
     </div>
   )
 }

components/LatestList.tsx

@@ -1,19 +1,19 @@
 import React from 'react'
-import { ILatest } from '../interfaces/ILatest'
+import { IStoreItem } from '../interfaces/IStoreItem'
 
 export default function LatestList({
-  latest,
+  storeData,
   onSelect,
   onRemove,
 }: {
-  latest: ILatest[]
-  onSelect: (l: ILatest) => void
-  onRemove: (l: ILatest) => void
+  storeData: IStoreItem[]
+  onSelect: (l: IStoreItem) => void
+  onRemove: (l: IStoreItem) => void
 }) {
-  if (!latest || !latest.length) {
+  if (!storeData || !storeData.length) {
     return null
   }
-  const latestElements = latest.map((item) => {
+  const latestElements = storeData.map((item) => {
     const created = new Date(item.created)
     const subject = item.subject
     const hrefId = `#item-${item.id}`

components/apiHelper.tsx

@@ -1,5 +1,5 @@
 import { IDocProps } from '../interfaces/IDocProps'
-import { ILatest } from '../interfaces/ILatest'
+import { IStoreItem } from '../interfaces/IStoreItem'
 
 function checkStatus(res: Response) {
   if (res.status < 200 || res.status >= 400) {
@@ -7,7 +7,7 @@ function checkStatus(res: Response) {
   }
 }
 
-export async function generatePdf(state: IDocProps): Promise<string> {
+export async function generatePdf(state: IDocProps): Promise<{ url: string; data: IStoreItem }> {
   const options = {
     method: 'POST',
     headers: {
@@ -18,18 +18,9 @@ export async function generatePdf(state: IDocProps): Promise<string> {
 
   const response = await fetch('/api/document?template=brief', options)
   checkStatus(response)
-  const { id } = await response.json()
-  return `/api/document/${id}`
-}
-
-export async function getLatest(): Promise<ILatest[]> {
-  const response = await fetch('/api/document/latest')
-  checkStatus(response)
-  return response.json()
-}
-
-export async function removeLatest(item: { id: string }) {
-  const response = await fetch(`/api/document/${item.id}`, { method: 'DELETE' })
-  checkStatus(response)
-  return response
+  const { id, data } = await response.json()
+  return {
+    url: `/api/document/${id}`,
+    data,
+  }
 }

interfaces/IStoreItem.ts

@@ -1,6 +1,6 @@
 import { IDocProps } from './IDocProps'
 
-export interface ILatest extends IDocProps {
+export interface IStoreItem extends IDocProps {
   id: string
   created: Date
 }

lib/dataStore.ts

@@ -0,0 +1,37 @@
+import { IStoreItem } from '../interfaces/IStoreItem'
+
+const LOCAL_STORAGE_KEY = 'pdfer-data'
+
+function readData(): IStoreItem[] {
+  const dataString = localStorage.getItem(LOCAL_STORAGE_KEY)
+
+  let data = []
+
+  if (dataString) {
+    data = JSON.parse(dataString)
+  }
+
+  return data
+}
+
+function storeData(data: IStoreItem[]): void {
+  localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(data))
+}
+
+function withoutId(data: IStoreItem[], id: string) {
+  return data.filter((item) => item.id !== id)
+}
+
+export function addDocument(templateData: IStoreItem) {
+  const data = [templateData, ...withoutId(readData(), templateData.id)]
+  storeData(data)
+}
+
+export function removeDocument(id: string) {
+  const newData = withoutId(readData(), id)
+  storeData(newData)
+}
+
+export function getDocuments() {
+  return readData()
+}

lib/id.ts

@@ -0,0 +1,8 @@
+import { createHash } from 'crypto'
+import { IDocProps } from '../interfaces/IDocProps'
+
+export function getId(data: IDocProps) {
+  let sum = createHash('sha1')
+  sum.update(JSON.stringify(data))
+  return sum.digest('hex')
+}

lib/renderer.ts

@@ -1,7 +1,6 @@
 import { promisify } from 'util'
 import { promises } from 'fs'
 import { exec } from 'child_process'
-import { v1 as uuidv1 } from 'uuid'
 import { getDirPath, getDocPath, getTexCmd } from './utils'
 
 const execPromise = promisify(exec)
@@ -10,7 +9,12 @@ async function copyToTemp(id: string, texDocument: string): Promise<void> {
   const dirPath = getDirPath(id)
   const docPath = getDocPath(id)
 
+  try {
+    await promises.access(dirPath)
+  } catch (_) {
+    // well, seems it does not exists, let's create it
     await promises.mkdir(dirPath)
+  }
   await promises.writeFile(docPath, texDocument)
 }
 
@@ -27,8 +31,7 @@ async function generateDoc(id: string): Promise<void> {
   }
 }
 
-export default async function (texDocument: string) {
-  const id = uuidv1()
+export default async function (id: string, texDocument: string) {
   await copyToTemp(id, texDocument)
   await generateDoc(id)
   return id

lib/store.ts

@@ -1,15 +0,0 @@
-const storeDir = process.env.JSON_STORE || './pdfer-store/'
-
-import { promisify } from 'util'
-
-// @ts-ignore
-import JsonStore from 'json-fs-store'
-
-const store = JsonStore(storeDir)
-
-console.log(`using json-store at ${storeDir}`)
-
-export const list = promisify(store.list)
-export const load = promisify(store.load)
-export const add = promisify(store.add)
-export const remove = promisify(store.remove)

package.json

@@ -7,27 +7,30 @@
     "start": "next start",
     "type-check": "tsc",
     "format": "prettier --write **/*.{ts,tsx,json}",
+    "test": "jest --watch",
+    "test:ci": "jest --ci",
     "docker:build": "docker build . -t pdfer",
-    "docker:run": "docker run -v ./pdfer-store:/pdfer-store -p 3000:3000 pdfer"
+    "docker:run": "docker run -v /tmp/pdfer-store:/pdfer-store -p 3000:3000 pdfer"
   },
   "dependencies": {
-    "@tailwindcss/forms": "^0.2.1",
-    "@types/jest": "^26.0.20",
-    "autoprefixer": "^10.2.4",
-    "json-fs-store": "^1.0.1",
     "next": "^10.0.7",
-    "postcss": "^8.2.6",
     "react": "^17.0.1",
-    "react-collapsible": "^2.8.3",
-    "react-dom": "^17.0.1",
-    "tailwindcss": "^2.0.3",
-    "uuid": "^8.3.2"
+    "react-dom": "^17.0.1"
   },
   "devDependencies": {
+    "@tailwindcss/forms": "^0.2.1",
+    "@types/jest": "^26.0.20",
     "@types/node": "^14.14.31",
     "@types/react": "^17.0.2",
     "@types/react-dom": "^17.0.1",
     "@types/uuid": "^8.3.0",
+    "autoprefixer": "^10.2.4",
+    "babel-jest": "^26.6.3",
+    "jest": "^26.6.3",
+    "jest-watch-typeahead": "^0.6.1",
+    "postcss": "^8.2.6",
+    "react-collapsible": "^2.8.3",
+    "tailwindcss": "^2.0.3",
     "typescript": "^4.2.2"
   },
   "license": "MIT"

pages/api/document/[id].ts

@@ -1,7 +1,6 @@
 import { promises } from 'fs'
 import { NextApiRequest, NextApiResponse } from 'next'
 
-import { remove as storeRemove } from '../../../lib/store'
 import { getPdfPath } from '../../../lib/utils'
 
 const handler = async (req: NextApiRequest, res: NextApiResponse) => {
@@ -24,22 +23,8 @@ const handler = async (req: NextApiRequest, res: NextApiResponse) => {
         res.status(404).json({ statusCode: 404, message: 'Method Not Allowed' })
       }
       break
-    case 'DELETE':
-      try {
-        const {
-          query: { id: idArg },
-        } = req
-
-        storeRemove(idArg)
-
-        res.status(202).end()
-      } catch (error) {
-        console.error(error)
-        res.status(404).json({ statusCode: 404, message: 'Method Not Allowed' })
-      }
-      break
     default:
-      res.setHeader('Allow', ['GET', 'DELETE'])
+      res.setHeader('Allow', ['GET'])
       res.status(405).end(`Method ${method} Not Allowed`)
   }
 }

pages/api/document/index.ts

@@ -2,8 +2,8 @@ import { NextApiRequest, NextApiResponse } from 'next'
 
 import { brief as briefTemplate } from '../../../lib/templates'
 import renderer from '../../../lib/renderer'
-import * as store from '../../../lib/store'
 import { IDocProps } from '../../../interfaces/IDocProps'
+import { getId } from '../../../lib/id'
 
 const TEMPLATES: { [key: string]: (options: IDocProps) => string } = {
   brief: briefTemplate,
@@ -28,15 +28,11 @@ const handler = async (req: NextApiRequest, res: NextApiResponse) => {
       return
     }
 
+    const id = getId(templateData)
     const texDoc = template(templateData)
-    const id = await renderer(texDoc)
-    const storeData = Object.assign({}, templateData, {
-      id,
-      created: new Date().toISOString(),
-      template: templateName,
-    })
-    await store.add(storeData)
-    res.status(200).json({ id: id })
+    await renderer(id, texDoc)
+    const storeData = { ...templateData, id, created: new Date().toISOString(), template: templateName }
+    res.status(200).json({ id: id, data: storeData })
   } catch (err) {
     console.error('Error:', err, 'for', req.url)
     res.status(500).json({ error: err.toString() })

pages/api/document/latest.ts

@@ -1,21 +0,0 @@
-import { NextApiRequest, NextApiResponse } from 'next'
-
-import { list as storeList } from '../../../lib/store'
-
-
-const handler = async (req: NextApiRequest, res: NextApiResponse) => {
-    if (req.method !== 'GET') {
-        res.status(405).json({ statusCode: 405, message: 'Method Not Allowed' })
-        return;
-    }
-
-    try {
-        const latest = await storeList();
-        res.status(200).json(latest);
-    } catch (err) {
-        console.error('Error:', err, 'for', req.url);
-        res.status(500).json({ error: err.toString() });
-    }
-}
-
-export default handler