Multiple accounts

This implements a simple account switcher and a way to change/add accounts. To remove one, you have to logout from all of them.

It makes sharing family accounts easier, while keeping separate accounts/tracking per person.

Makefile

@@ -1,6 +1,6 @@
 .PHONY: start
 start:
-	deno run --watch --allow-net --allow-read --allow-env main.ts
+	deno run --watch --allow-net --allow-read --allow-env --allow-write main.ts
 
 .PHONY: format
 format:

components/header.ts

@@ -20,6 +20,11 @@ export default function header(currentPath: string) {
             <li class="${currentPath.includes('/pricing') ? 'active' : ''}">
               <a href="/pricing">Pricing</a>
             </li>
+            <li data-has-valid-session class="hidden">
+              <select id="swap-accounts-select">
+                <option value="">Swap account...</option>
+              </select>
+            </li>
             <li data-has-valid-session class="hidden">
               <a onclick="window.app.doLogout();" style="cursor: pointer;">Logout</a>
             </li>

docker-compose.yml

@@ -15,17 +15,6 @@ services:
         soft: -1
         hard: -1
 
-  # NOTE: This would be nice to develop with https:// locally, but it doesn't work, for whatever reason, so we need a system caddy instead
-  # caddy:
-  #   image: caddy:2-alpine
-  #   restart: unless-stopped
-  #   command: caddy reverse-proxy --from https://localhost:443 --to http://localhost:8000
-  #   network_mode: "host"
-  #   volumes:
-  #     - caddy:/data
-
 volumes:
   pgdata:
     driver: local
-  # caddy:
-  #   driver: local

lib/utils.ts

@@ -1,5 +1,5 @@
 import 'std/dotenv/load.ts';
-import { emit } from 'https://deno.land/x/emit@0.15.0/mod.ts';
+import { transpile } from 'https://deno.land/x/emit@0.33.0/mod.ts';
 import sass from 'https://deno.land/x/denosass@1.0.6/mod.ts';
 import { serveFile } from 'std/http/file_server.ts';
 
@@ -106,15 +106,15 @@ export function escapeHtml(unsafe: string) {
 
 async function transpileTs(content: string, specifier: URL) {
   const urlStr = specifier.toString();
-  const result = await emit(specifier, {
+  const result = await transpile(specifier, {
     load(specifier: string) {
       if (specifier !== urlStr) {
         return Promise.resolve({ kind: 'module', specifier, content: '' });
       }
       return Promise.resolve({ kind: 'module', specifier, content });
     },
   });
-  return result[urlStr];
+  return result.get(urlStr) || '';
 }
 
 export async function serveFileWithTs(request: Request, filePath: string, extraHeaders?: ResponseInit['headers']) {

public/css/style.css

@@ -367,7 +367,7 @@ a.button.secondary:focus {
 .input-wrapper input[type="url"],
 .input-wrapper input[type="password"],
 .input-wrapper textarea,
-.input-wrapper select 
+.input-wrapper select
 {
 	box-sizing: border-box;
 	width: 100%;
@@ -394,7 +394,7 @@ a.button.secondary:focus {
 .input-wrapper input[type="url"]:focus,
 .input-wrapper input[type="password"]:focus,
 .input-wrapper textarea:focus,
-.input-wrapper select:focus 
+.input-wrapper select:focus
 {
   border-color: var(--color-link-hover);
 }

public/scss/style.scss

@@ -179,3 +179,20 @@
     }
   }
 }
+
+#swap-accounts-select {
+  box-sizing: border-box;
+	width: auto;
+  max-width: 120px;
+	display: block;
+	outline: none;
+	border: none;
+	font-size: 0.9rem;
+	padding: 0.25rem 0.25rem;
+  border: 1px solid #fff;
+  background: #fff;
+  border-radius: 3px;
+  transition: all 80ms ease-in-out;
+  text-overflow: ellipsis;
+  margin: 0 0.5rem;
+}

public/ts/billing.ts

@@ -1,4 +1,10 @@
-import { checkForValidSession, commonRequestHeaders, dateDiffInDays, showNotification } from './utils.ts';
+import {
+  checkForValidSession,
+  commonInitializer,
+  commonRequestHeaders,
+  dateDiffInDays,
+  showNotification,
+} from './utils.ts';
 import LocalData from './local-data.ts';
 
 document.addEventListener('app-loaded', async () => {
@@ -191,6 +197,7 @@ document.addEventListener('app-loaded', async () => {
 
   function initializePage() {
     updateUI();
+    commonInitializer();
   }
 
   if (window.app.isLoggedIn) {

public/ts/index.ts

@@ -2,6 +2,7 @@ import { Budget, Expense } from '/lib/types.ts';
 import {
   BudgetToShow,
   checkForValidSession,
+  commonInitializer,
   copyBudgetsAndExpenses,
   createAccount,
   debounce,
@@ -362,6 +363,7 @@ document.addEventListener('app-loaded', async () => {
 
   function initializePage() {
     showData();
+    commonInitializer();
   }
 
   let isAddingExpense = false;

public/ts/local-data.ts

@@ -6,6 +6,7 @@ export interface StoredSession {
   userId: string;
   email: string;
   keyPair: KeyPair;
+  otherSessions?: Omit<StoredSession, 'otherSessions'>[];
 }
 
 export default class LocalData {

public/ts/pricing.ts

@@ -1,4 +1,10 @@
-import { checkForValidSession, commonRequestHeaders, dateDiffInDays, showNotification } from './utils.ts';
+import {
+  checkForValidSession,
+  commonInitializer,
+  commonRequestHeaders,
+  dateDiffInDays,
+  showNotification,
+} from './utils.ts';
 import LocalData from './local-data.ts';
 
 document.addEventListener('app-loaded', async () => {
@@ -127,6 +133,7 @@ document.addEventListener('app-loaded', async () => {
 
   function initializePage() {
     updateUI();
+    commonInitializer();
   }
 
   if (window.app.isLoggedIn) {

public/ts/settings.ts

@@ -1,6 +1,7 @@
 import { Budget, Expense } from '/lib/types.ts';
 import {
   checkForValidSession,
+  commonInitializer,
   commonRequestHeaders,
   exportAllData,
   importData,
@@ -370,6 +371,7 @@ document.addEventListener('app-loaded', async () => {
 
   function initializePage() {
     newCurrencySelect.value = user?.extra.currency || '$';
+    commonInitializer();
   }
 
   if (window.app.isLoggedIn) {

public/ts/utils.ts

@@ -164,9 +164,60 @@ async function getUser() {
   return null;
 }
 
+export function getOtherAccounts() {
+  try {
+    const session = LocalData.get('session')!;
+
+    return session.otherSessions?.map((otherSession) => ({
+      email: otherSession.email,
+    })) || [];
+  } catch (_error) {
+    // Do nothing
+  }
+
+  return [];
+}
+
+export function swapAccount(newEmail: string) {
+  try {
+    const session = LocalData.get('session')!;
+
+    const foundSession = session.otherSessions?.find((otherSession) => otherSession.email === newEmail);
+
+    if (foundSession) {
+      const otherSessions = [...(session.otherSessions || [])].filter((otherSession) =>
+        otherSession.email !== foundSession.email
+      );
+
+      otherSessions.unshift(session);
+
+      const newSession: StoredSession = {
+        ...foundSession,
+        otherSessions,
+      };
+
+      LocalData.set('session', newSession);
+
+      window.location.reload();
+    }
+  } catch (_error) {
+    // Do nothing
+  }
+
+  return [];
+}
+
 export async function validateLogin(email: string, password: string) {
   const { Swal } = window;
 
+  let existingSession: StoredSession | null = null;
+
+  try {
+    existingSession = LocalData.get('session');
+  } catch (_error) {
+    // Do nothing
+  }
+
   try {
     const headers = commonRequestHeaders;
 
@@ -230,11 +281,18 @@ export async function validateLogin(email: string, password: string) {
 
     await fetch('/api/session', { method: 'PATCH', headers, body: JSON.stringify(verificationBody) });
 
+    const otherSessions = [...(existingSession?.otherSessions || [])];
+
+    if (existingSession && existingSession.email !== lowercaseEmail) {
+      otherSessions.unshift(existingSession);
+    }
+
     const session: StoredSession = {
       sessionId,
       userId: user.id,
       email: lowercaseEmail,
       keyPair,
+      otherSessions,
     };
 
     LocalData.set('session', session);
@@ -252,6 +310,14 @@ export async function validateLogin(email: string, password: string) {
 }
 
 export async function createAccount(email: string, password: string) {
+  let existingSession: StoredSession | null = null;
+
+  try {
+    existingSession = LocalData.get('session');
+  } catch (_error) {
+    // Do nothing
+  }
+
   try {
     const headers = commonRequestHeaders;
 
@@ -273,11 +339,18 @@ export async function createAccount(email: string, password: string) {
       throw new Error('Failed to create user. Try logging in instead.');
     }
 
+    const otherSessions = [...(existingSession?.otherSessions || [])];
+
+    if (existingSession && existingSession.email !== lowercaseEmail) {
+      otherSessions.unshift(existingSession);
+    }
+
     const session: StoredSession = {
       sessionId,
       userId: user.id,
       email: lowercaseEmail,
       keyPair,
+      otherSessions,
     };
 
     LocalData.set('session', session);
@@ -867,6 +940,57 @@ export async function importData(replaceData: boolean, budgets: Budget[], expens
   return false;
 }
 
+export async function commonInitializer() {
+  const user = await checkForValidSession();
+  const swapAccountsSelect = document.getElementById('swap-accounts-select') as HTMLSelectElement;
+
+  function populateSwapAccountsSelect() {
+    if (user) {
+      const otherSessions = getOtherAccounts();
+      otherSessions.sort(sortByEmail);
+
+      const currentUserOptionHtml = `<option>${user.email}</option>`;
+      const newLoginOptionHtml = `<option value="new">Login to another account</option>`;
+      const fullSelectHtmlStrings: string[] = [currentUserOptionHtml];
+
+      for (const otherSession of otherSessions) {
+        const optionHtml = `<option>${otherSession.email}</option>`;
+        fullSelectHtmlStrings.push(optionHtml);
+      }
+
+      fullSelectHtmlStrings.push(newLoginOptionHtml);
+
+      swapAccountsSelect.innerHTML = fullSelectHtmlStrings.join('\n');
+    }
+  }
+
+  function chooseAnotherAccount() {
+    const currentEmail = user?.email;
+    const chosenEmail = swapAccountsSelect.value;
+
+    if (!chosenEmail) {
+      return;
+    }
+
+    if (chosenEmail === currentEmail) {
+      return;
+    }
+
+    if (chosenEmail === 'new') {
+      // Show login form again
+      hideValidSessionElements();
+      return;
+    }
+
+    swapAccount(chosenEmail);
+  }
+
+  populateSwapAccountsSelect();
+
+  swapAccountsSelect.removeEventListener('change', chooseAnotherAccount);
+  swapAccountsSelect.addEventListener('change', chooseAnotherAccount);
+}
+
 const months = [
   'January',
   'February',
@@ -935,6 +1059,22 @@ export function sortByName(
   return 0;
 }
 
+type SortableByEmail = { email: string };
+export function sortByEmail(
+  objectA: SortableByEmail,
+  objectB: SortableByEmail,
+) {
+  const emailA = objectA.email.toLowerCase();
+  const emailB = objectB.email.toLowerCase();
+  if (emailA < emailB) {
+    return -1;
+  }
+  if (emailA > emailB) {
+    return 1;
+  }
+  return 0;
+}
+
 export interface BudgetToShow extends Omit<Budget, 'user_id' | 'extra'> {
   expensesCost: number;
 }