Add lint:ts to lint targets in package.json (in nextjs branch)?

[pdehaan]

Current output from nextjs branch is:

Found 57 errors in 8 files.

Errors Files

• 2 src/app/functions/server/getBreaches.ts:14
• 1 src/appConstants.js:60
• 1 src/db/knexfile.js:11
• 3 src/db/tables/breaches.js:9
• 1 src/external/onerep.js:9
• 10 src/utils/breachLogo.js:13
• 13 src/utils/fxa.js:29
• 26 src/utils/hibp.js:24

npm run lint:ts

git rev-parse --short HEAD # b24622482
git rev-parse --abbrev-ref HEAD # nextjs

npm run lint:ts

> monitor@1.0.0 lint:ts
> tsc --noEmit

src/app/functions/server/getBreaches.ts:14:20 - error TS2554: Expected 0 arguments, but got 1.

14 const log = mozlog('hibp')
                      ~~~~~~

src/app/functions/server/getBreaches.ts:31:25 - error TS2531: Object is possibly 'null'.

31       breach.LogoPath = /[^/]*$/.exec(breach.LogoPath)[0]
                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/appConstants.js:60:32 - error TS2367: This comparison appears to be unintentional because the types '"development" | "production" | "test"' and '"heroku"' have no overlap.

60 if (!process.env.SERVER_URL && process.env.NODE_ENV === 'heroku') {
                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/db/knexfile.js:11:3 - error TS2322: Type '{ rejectUnauthorized: boolean; }' is not assignable to type 'string | boolean | undefined'.

11   connectionObj.ssl = { rejectUnauthorized: false }
     ~~~~~~~~~~~~~~~~~

src/db/tables/breaches.js:9:20 - error TS2554: Expected 0 arguments, but got 1.

9 const log = mozlog('DB.breaches')
                     ~~~~~~~~~~~~~

src/db/tables/breaches.js:18:6 - error TS2554: Expected 1-2 arguments, but got 0.

18     .returning()
        ~~~~~~~~~~~

  node_modules/knex/types/index.d.ts:1094:7
    1094       column: '*',
               ~~~~~~~~~~~
    An argument for 'column' was not provided.

src/db/tables/breaches.js:25:12 - error TS2314: Generic type 'Array<T>' requires 1 type argument(s).

25  * @param {Array} hibpBreaches breaches array from HIBP API
              ~~~~~

src/external/onerep.js:9:20 - error TS2554: Expected 0 arguments, but got 1.

9 const log = mozlog('external.onerep')
                     ~~~~~~~~~~~~~~~~~

src/utils/breachLogo.js:13:45 - error TS2339: Property 'Domain' does not exist on type 'object'.

13   const logoIsAvailable = logos?.has(breach.Domain)
                                               ~~~~~~

src/utils/breachLogo.js:16:68 - error TS2339: Property 'Domain' does not exist on type 'object'.

16     return `<img src='${AppConstants.SERVER_URL}${logos.get(breach.Domain)}' alt='' loading="lazy" class='breach-logo' height='32' />`
                                                                      ~~~~~~

src/utils/breachLogo.js:21:11 - error TS2339: Property 'className' does not exist on type 'String'.

21   const { className, variableName } = getColorForName(breach.Name)
             ~~~~~~~~~

src/utils/breachLogo.js:21:22 - error TS2339: Property 'variableName' does not exist on type 'String'.

21   const { className, variableName } = getColorForName(breach.Name)
                        ~~~~~~~~~~~~

src/utils/breachLogo.js:21:62 - error TS2339: Property 'Name' does not exist on type 'object'.

21   const { className, variableName } = getColorForName(breach.Name)
                                                                ~~~~

src/utils/breachLogo.js:25:105 - error TS2339: Property 'Name' does not exist on type 'object'.

25   return `<span role="img" aria-hidden='true' class='${classNames}' style='${backgroundStyle}'>${breach.Name.substring(0, 1)}</span>`
                                                                                                           ~~~~

src/utils/breachLogo.js:71:33 - error TS18048: 'sum' is possibly 'undefined'.

71     .reduce((sum, codePoint) => sum + codePoint)
                                   ~~~

src/utils/breachLogo.js:71:39 - error TS18048: 'codePoint' is possibly 'undefined'.

71     .reduce((sum, codePoint) => sum + codePoint)
                                         ~~~~~~~~~

src/utils/breachLogo.js:73:3 - error TS2322: Type '{ className: string; variableName: string; }' is not assignable to type 'string'.

73   return logoColors[charValue % logoColors.length]
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/utils/breachLogo.js:73:21 - error TS18048: 'charValue' is possibly 'undefined'.

73   return logoColors[charValue % logoColors.length]
                       ~~~~~~~~~

src/utils/fxa.js:29:34 - error TS7006: Parameter 'path' implicitly has an 'any' type.

29 async function postTokenRequest (path, token) {
                                    ~~~~

src/utils/fxa.js:29:40 - error TS7006: Parameter 'token' implicitly has an 'any' type.

29 async function postTokenRequest (path, token) {
                                          ~~~~~

src/utils/fxa.js:46:48 - error TS18046: 'e' is of type 'unknown'.

46     console.error('postTokenRequest', { stack: e.stack })
                                                  ~

src/utils/fxa.js:51:34 - error TS7006: Parameter 'token' implicitly has an 'any' type.

51 async function verifyOAuthToken (token) {
                                    ~~~~~

src/utils/fxa.js:56:48 - error TS18046: 'e' is of type 'unknown'.

56     console.error('verifyOAuthToken', { stack: e.stack })
                                                  ~

src/utils/fxa.js:60:35 - error TS7006: Parameter 'token' implicitly has an 'any' type.

60 async function destroyOAuthToken (token) {
                                     ~~~~~

src/utils/fxa.js:65:49 - error TS18046: 'e' is of type 'unknown'.

65     console.error('destroyOAuthToken', { stack: e.stack })
                                                   ~

src/utils/fxa.js:69:35 - error TS7006: Parameter 'subscriber' implicitly has an 'any' type.

69 async function revokeOAuthTokens (subscriber) {
                                     ~~~~~~~~~~

src/utils/fxa.js:74:32 - error TS7006: Parameter 'accessToken' implicitly has an 'any' type.

74 async function getProfileData (accessToken) {
                                  ~~~~~~~~~~~

src/utils/fxa.js:82:45 - error TS18046: 'e' is of type 'unknown'.

82     console.warn('getProfileData', { stack: e.stack })
                                               ~

src/utils/fxa.js:87:37 - error TS7006: Parameter 'path' implicitly has an 'any' type.

87 async function sendMetricsFlowPing (path) {
                                       ~~~~

src/utils/fxa.js:97:51 - error TS18046: 'e' is of type 'unknown'.

97     console.error('sendMetricsFlowPing', { stack: e.stack })
                                                     ~

src/utils/fxa.js:102:19 - error TS7006: Parameter 'email' implicitly has an 'any' type.

102 function getSha1 (email) {
                      ~~~~~

src/utils/hibp.js:24:20 - error TS2554: Expected 0 arguments, but got 1.

24 const log = mozlog('hibp')
                      ~~~~~~

src/utils/hibp.js:35:16 - error TS7023: '_throttledFetch' implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions.

35 async function _throttledFetch (url, reqOptions, tryCount = 1) {
                  ~~~~~~~~~~~~~~~

src/utils/hibp.js:35:33 - error TS7006: Parameter 'url' implicitly has an 'any' type.

35 async function _throttledFetch (url, reqOptions, tryCount = 1) {
                                   ~~~

src/utils/hibp.js:35:38 - error TS7006: Parameter 'reqOptions' implicitly has an 'any' type.

35 async function _throttledFetch (url, reqOptions, tryCount = 1) {
                                        ~~~~~~~~~~

src/utils/hibp.js:46:13 - error TS2365: Operator '>=' cannot be applied to types 'number' and 'string'.

46         if (tryCount >= HIBP_THROTTLE_MAX_TRIES) {
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/utils/hibp.js:50:60 - error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.

50           await new Promise(resolve => setTimeout(resolve, HIBP_THROTTLE_DELAY * tryCount))
                                                              ~~~~~~~~~~~~~~~~~~~

src/utils/hibp.js:62:21 - error TS7006: Parameter 'path' implicitly has an 'any' type.

62 async function req (path, options = {}) {
                       ~~~~

src/utils/hibp.js:68:26 - error TS7006: Parameter 'path' implicitly has an 'any' type.

68 async function kAnonReq (path, options = {}) {
                            ~~~~

src/utils/hibp.js:79:12 - error TS2314: Generic type 'Array<T>' requires 1 type argument(s).

79  * @param {Array} dataClasses
              ~~~~~

src/utils/hibp.js:98:7 - error TS7034: Variable 'dbBreaches' implicitly has type 'any[]' in some locations where its type cannot be determined.

98   let dbBreaches = []
         ~~~~~~~~~~

src/utils/hibp.js:103:12 - error TS7005: Variable 'dbBreaches' implicitly has an 'any[]' type.

103     return dbBreaches
               ~~~~~~~~~~

src/utils/hibp.js:129:37 - error TS7006: Parameter 'app' implicitly has an 'any' type.

129 async function loadBreachesIntoApp (app) {
                                        ~~~

src/utils/hibp.js:142:27 - error TS2531: Object is possibly 'null'.

142         breach.LogoPath = /[^/]*$/.exec(breach.LogoPath)[0]
                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/utils/hibp.js:164:37 - error TS7006: Parameter 'breaches' implicitly has an 'any' type.

164 async function downloadBreachIcons (breaches) {
                                        ~~~~~~~~

src/utils/hibp.js:166:10 - error TS7006: Parameter 'breach' implicitly has an 'any' type.

166     .map(breach => breach.Domain)
             ~~~~~~

src/utils/hibp.js:167:13 - error TS7006: Parameter 'breachDomain' implicitly has an 'any' type.

167     .filter(breachDomain => breachDomain.length > 0)
                ~~~~~~~~~~~~

src/utils/hibp.js:176:60 - error TS7006: Parameter 'breachDomain' implicitly has an 'any' type.

176   const logoMapElems = await Promise.all(breachDomains.map(breachDomain => {
                                                               ~~~~~~~~~~~~

src/utils/hibp.js:239:12 - error TS2314: Generic type 'Array<T>' requires 1 type argument(s).

239  * @param {Array} breaches
               ~~~~~

src/utils/hibp.js:240:14 - error TS2314: Generic type 'Array<T>' requires 1 type argument(s).

240  * @returns {Array} filteredBreaches
                 ~~~~~

src/utils/hibp.js:257:12 - error TS2314: Generic type 'Array<T>' requires 1 type argument(s).

257  * @param {Array} allBreaches
               ~~~~~

src/utils/hibp.js:287:16 - error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.

287         return new Date(b.AddedDate) - new Date(a.AddedDate)
                   ~~~~~~~~~~~~~~~~~~~~~

src/utils/hibp.js:287:40 - error TS2363: The right-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.

287         return new Date(b.AddedDate) - new Date(a.AddedDate)
                                           ~~~~~~~~~~~~~~~~~~~~~

src/utils/hibp.js:302:27 - error TS7006: Parameter 'allBreaches' implicitly has an 'any' type.

302 function getBreachByName (allBreaches, breachName) {
                              ~~~~~~~~~~~

src/utils/hibp.js:302:40 - error TS7006: Parameter 'breachName' implicitly has an 'any' type.

302 function getBreachByName (allBreaches, breachName) {
                                           ~~~~~~~~~~

src/utils/hibp.js:305:18 - error TS7053: Element implicitly has an 'any' type because expression of type 'any' can't be used to index type '{ covve: string; }'.

305     breachName = RENAMED_BREACHES_MAP[breachName]
                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/utils/hibp.js:307:40 - error TS7006: Parameter 'breach' implicitly has an 'any' type.

307   const foundBreach = allBreaches.find(breach => breach.Name.toLowerCase() === breachName)
                                           ~~~~~~


Found 57 errors in 8 files.

Errors  Files
     2  src/app/functions/server/getBreaches.ts:14
     1  src/appConstants.js:60
     1  src/db/knexfile.js:11
     3  src/db/tables/breaches.js:9
     1  src/external/onerep.js:9
    10  src/utils/breachLogo.js:13
    13  src/utils/fxa.js:29
    26  src/utils/hibp.js:24

Might be easier to tweak the linters+rules now before we add too much TypeScript+Next.js and end up having to do another big refactor in the future.

blurts-server/package.json

Lines 27 to 30 in b246224

	"lint": "npm run lint:css && npm run lint:js",
	"lint:css": "stylelint src/client/css/",
	"lint:js": "eslint .",
	"lint:ts": "tsc --noEmit",

-"lint": "npm run lint:css && npm run lint:js", 
+"lint": "npm run lint:css && npm run lint:js && npm run lint:ts", 

[pdehaan]

Also https://nextjs.org/docs/pages/building-your-application/configuring/eslint and https://nextjs.org/docs/app/api-reference/next-cli#lint

We might want to use next lint (or npx next lint depending on your usage). But currently unclear on if we need to run both tsc --noEmit AND next lint or if the latter is sufficient.

After thinking about it for a bit, I think we replace our current npm run lint:js with next lint and keep the separate tsc --noEmit script (and alias everything to npm run lint for our one script to lint CSS, JavaScript, and TypeScript).