From d1793be3e1f21a8f6475280ff74888ae6df6e438 Mon Sep 17 00:00:00 2001
From: Elias Kohout <elias@kohout.de>
Date: Wed, 11 Feb 2026 21:15:51 +0100
Subject: [PATCH] add list of board for logged in user, allow adding new user
 to board, minor other changes

---
 frontend/src/components/AddSpendingModal.vue | 13 +++----
 frontend/src/components/CreateNewList.vue    |  8 ++--
 frontend/src/services/Board.ts               | 30 ++++++++++++---
 frontend/src/services/User.ts                | 13 -------
 frontend/src/stores/boardStore.ts            | 38 ++++++-------------
 frontend/src/stores/userStore.ts             | 20 +++++++++-
 frontend/src/views/BoardInfoView.vue         |  6 +--
 frontend/src/views/BoardSettingsView.vue     | 39 +++++++++++++++++++-
 frontend/src/views/BoardSpendingsView.vue    |  2 +-
 frontend/src/views/BoardUsersView.vue        |  5 ++-
 frontend/src/views/HomeView.vue              | 28 +++++++++++++-
 11 files changed, 135 insertions(+), 67 deletions(-)

diff --git a/frontend/src/components/AddSpendingModal.vue b/frontend/src/components/AddSpendingModal.vue
index 2d7b16d..ad911fa 100644
--- a/frontend/src/components/AddSpendingModal.vue
+++ b/frontend/src/components/AddSpendingModal.vue
@@ -2,6 +2,7 @@
 import IconX from '@/components/icons/IconX.vue'
 import IconPlus from '@/components/icons/IconPlusCircle.vue'
 import { useBoardStore } from '@/stores/boardStore'
+import { Spending } from '@/services/Spending'
 
 import { computed, ref } from 'vue'
 import InputField from './InputField.vue'
@@ -31,13 +32,11 @@ const forceValidate = ref(false)
 function submit() {
   forceValidate.value = true
   if (spendingAmountError.value == '' && spendingNameError.value == '') {
-    store
-      .getCurrentBoard()
-      .addSpendingByUserName(
-        props.userName ?? '',
-        spendingNameInput.value,
-        spendingAmount.value * 100,
-      )
+    const user = store.getCurrentBoard()?.getUsers().find(u => u.name === props.userName)
+    if (user) {
+      const spending = new Spending(spendingNameInput.value, spendingAmount.value * 100)
+      store.getCurrentBoard()?.addSpending(user, spending)
+    }
     spendingNameInput.value = ''
     spendingAmountInput.value = ''
     isOpen.value = false
diff --git a/frontend/src/components/CreateNewList.vue b/frontend/src/components/CreateNewList.vue
index 0354dbe..76e1f83 100644
--- a/frontend/src/components/CreateNewList.vue
+++ b/frontend/src/components/CreateNewList.vue
@@ -1,11 +1,13 @@
 <script setup lang="ts">
 import InputField from './InputField.vue'
 import { useBoardStore } from '@/stores/boardStore'
+import { useUserStore } from '@/stores/userStore'
 import { computed, ref } from 'vue'
 import { useRouter } from 'vue-router'
 
 const route = useRouter()
-const store = useBoardStore()
+const boardStore = useBoardStore()
+const userStore = useUserStore()
 
 const boardNameInput = ref('')
 const boardNameError = computed(() => {
@@ -17,14 +19,14 @@ const forceValidate = ref(false)
 function submit() {
   forceValidate.value = true
   if (boardNameError.value == '') {
-    const newBoard = store.createBoard(boardNameInput.value)
+    const newBoard = boardStore.createBoard(userStore.getLogedInUser()!, boardNameInput.value)
     route.push('/boards/' + newBoard.guid)
   }
 }
 </script>
 
 <template>
-  <form class="bg-base-200 border-base-300 rounded-box w-xs border p-4" @submit.prevent="submit">
+  <form class="bg-base-100 border border-base-200 rounded-box shadow-md w-xs p-4" @submit.prevent="submit">
     <div class="flex flex-col gap-2">
       <h3 class="font-bold">Neue Liste Erstellen</h3>
 
diff --git a/frontend/src/services/Board.ts b/frontend/src/services/Board.ts
index 4e48b99..445d83a 100644
--- a/frontend/src/services/Board.ts
+++ b/frontend/src/services/Board.ts
@@ -4,23 +4,41 @@ import { v4 as uuidv4 } from 'uuid'
 
 export class Board {
   name: string
-  users: Array<User>
+  users: Set<User>
+  spendings: Array<Spending>
   creationDate: Date
   guid: string
 
   constructor(name: string) {
     this.name = name
-    this.users = Array<User>()
+    this.users = new Set<User>()
+    this.spendings = new Array<Spending>()
     this.creationDate = new Date()
     this.guid = uuidv4()
   }
 
   addUser(user: User): void {
-    this.users.push(user)
+    this.users.add(user)
   }
 
-  addSpendingByUserName(userName: string, spendingName: string, amountCt: number) {
-    const user = this.users.filter((u) => u.name === userName)[0]
-    user?.addSpending(new Spending(spendingName, amountCt))
+  addSpending(user: User, spending: Spending): void {
+    spending.setSpender(user)
+    this.users.add(user)
+    this.spendings.push(spending)
+  }
+
+  getUsers(): User[] {
+    return Array.from(this.users)
+  }
+
+  getUserSpendingTotals(): Map<string, number> {
+    const totals = new Map<string, number>()
+    for (const spending of this.spendings) {
+      if (spending.spender) {
+        const current = totals.get(spending.spender.name) || 0
+        totals.set(spending.spender.name, current + spending.amountCt)
+      }
+    }
+    return totals
   }
 }
diff --git a/frontend/src/services/User.ts b/frontend/src/services/User.ts
index 741b372..01e6109 100644
--- a/frontend/src/services/User.ts
+++ b/frontend/src/services/User.ts
@@ -1,21 +1,8 @@
-import type { Spending } from './Spending'
-
 export class User {
   name: string
-  spendings: Array<Spending>
 
   constructor(name: string) {
     this.name = name
-    this.spendings = Array<Spending>()
-  }
-
-  addSpending(spending: Spending): void {
-    spending.setSpender(this)
-    this.spendings.push(spending)
-  }
-
-  getTotalSpending(): number {
-    return this.spendings.map((w) => w.amountCt).reduce((acc, num) => acc + num, 0)
   }
 
   getInitials(): string {
diff --git a/frontend/src/stores/boardStore.ts b/frontend/src/stores/boardStore.ts
index 65d4960..b95cead 100644
--- a/frontend/src/stores/boardStore.ts
+++ b/frontend/src/stores/boardStore.ts
@@ -2,43 +2,23 @@ import { defineStore } from 'pinia'
 import { useRoute } from 'vue-router'
 import { Board } from '@/services/Board'
 import { User } from '@/services/User'
-import { Spending } from '@/services/Spending'
-import { useUserStore } from './userStore'
 
 export const useBoardStore = defineStore('boardStore', () => {
   const route = useRoute()
   const boards = new Map<string, Board>()
-  let testBoard: Board | undefined
-  const userStore = useUserStore()
 
-  function createBoard(name: string): Board {
+  function createBoard(owner: User, name: string): Board {
     const newBoard = new Board(name)
+    newBoard.addUser(owner)
     boards.set(newBoard.guid, newBoard)
     return newBoard
   }
 
-  function getBoard(guid: string): Board {
-    const board = boards.get(guid)
-    if (board != undefined) {
-      return board
-    } else {
-      if (testBoard === undefined) {
-        testBoard = new Board('Grill and Chill')
-        const elias = userStore.getUser('Elias') || new User('Elias')
-        elias.addSpending(new Spending('Burger', 1230))
-        elias.addSpending(new Spending('Kaffee', 510))
-        testBoard.addUser(elias)
-        const max = userStore.getUser('Max') || new User('Max')
-        max.addSpending(new Spending('Omlett', 1822))
-        max.addSpending(new Spending('Kaffee', 3073))
-        testBoard.addUser(max)
-        return testBoard
-      }
-      return testBoard
-    }
+  function getBoard(guid: string): Board | undefined {
+    return boards.get(guid)
   }
 
-  function getCurrentBoard(): Board {
+  function getCurrentBoard(): Board | undefined {
     if (typeof route.params.boardId === 'string') {
       return getBoard(route.params.boardId)
     } else {
@@ -46,5 +26,11 @@ export const useBoardStore = defineStore('boardStore', () => {
     }
   }
 
-  return { createBoard, getBoard, getCurrentBoard }
+  function getBoardsForUser(user: User): Board[] {
+    return Array.from(boards.values()).filter(board =>
+      board.getUsers().some(u => u.name === user.name)
+    )
+  }
+
+  return { createBoard, getBoard, getCurrentBoard, getBoardsForUser }
 })
diff --git a/frontend/src/stores/userStore.ts b/frontend/src/stores/userStore.ts
index c16f429..a8daaa1 100644
--- a/frontend/src/stores/userStore.ts
+++ b/frontend/src/stores/userStore.ts
@@ -4,6 +4,7 @@ import { User } from '@/services/User'
 
 export const useUserStore = defineStore('userStore', () => {
   const users = ref<Array<User>>([])
+  const useSampleUsers = ref(true)
 
   function addUser(user: User) {
     users.value.push(user)
@@ -14,12 +15,27 @@ export const useUserStore = defineStore('userStore', () => {
   }
 
   function getUser(userName: string) {
-    return users.value.find((user: User) => user.name === userName)
+    return getAllUsers().find((user: User) => user.name === userName)
+  }
+
+  function getLoggedInUser() {
+    return getAllUsers().find((user: User) => user.name === "Elias")
   }
 
   function getAllUsers() {
+    if (useSampleUsers.value) {
+      // Return sample users
+      return [
+        new User('Elias'),
+        new User('Daniel'),
+        new User('Max'),
+        new User('Alice Example'),
+        new User('Bob Demo'),
+        new User('Charlie Test')
+      ]
+    }
     return users.value
   }
 
-  return { addUser, removeUser, getUser, getAllUsers }
+  return { addUser, removeUser, getUser, getAllUsers, useSampleUsers, getLogedInUser: getLoggedInUser }
 })
diff --git a/frontend/src/views/BoardInfoView.vue b/frontend/src/views/BoardInfoView.vue
index 1609d3a..c373f12 100644
--- a/frontend/src/views/BoardInfoView.vue
+++ b/frontend/src/views/BoardInfoView.vue
@@ -11,12 +11,12 @@ const board = ref(store.getCurrentBoard())
 
 <template>
   <ItemList title="Informationen">
-    <ItemListElement title="Name" :subtitle="board.name" />
-    <ItemListElement title="Guid" :subtitle="board.guid" />
+    <ItemListElement title="Name" :subtitle="board?.name" />
+    <ItemListElement title="Guid" :subtitle="board?.guid" />
     <ItemListElement
       title="Erstellt am"
       :subtitle="
-        board.creationDate.toLocaleDateString('de-DE', {
+        board?.creationDate.toLocaleDateString('de-DE', {
           day: 'numeric',
           month: '2-digit',
           year: 'numeric',
diff --git a/frontend/src/views/BoardSettingsView.vue b/frontend/src/views/BoardSettingsView.vue
index a996444..e3ba3f1 100644
--- a/frontend/src/views/BoardSettingsView.vue
+++ b/frontend/src/views/BoardSettingsView.vue
@@ -1,9 +1,44 @@
 <script setup lang="ts">
 import ItemList from '@/components/ItemList.vue'
-
+import ItemListElement from '@/components/ItemListElement.vue'
 import { useBoardStore } from '@/stores/boardStore'
+import { useUserStore } from '@/stores/userStore'
+import { computed, ref } from 'vue'
+
+const boardStore = useBoardStore()
+const userStore = useUserStore()
+const selectedUserName = ref('')
+
+const availableUsers = computed(() => {
+  const allUsers = userStore.getAllUsers()
+  const boardUsers = boardStore.getCurrentBoard()?.getUsers()
+  const boardUserNames = new Set(boardUsers?.map(u => u.name))
+  return allUsers.filter(u => !boardUserNames.has(u.name))
+})
+
+function addUser() {
+  if (selectedUserName.value) {
+    const user = userStore.getAllUsers().find(u => u.name === selectedUserName.value)
+    if (user) {
+      boardStore.getCurrentBoard()?.addUser(user)
+      selectedUserName.value = '' // reset
+    }
+  }
+}
 </script>
 
 <template>
-  <ItemList title="Einstellungen"> </ItemList>
+  <ItemList title="Einstellungen">
+    <ItemListElement title="Benutzer hinzufügen">
+      <div class="flex gap-2">
+        <select v-model="selectedUserName" class="select select-bordered">
+          <option value="">Benutzer auswählen</option>
+          <option v-for="user in availableUsers" :key="user.name" :value="user.name">
+            {{ user.name }}
+          </option>
+        </select>
+        <button class="btn btn-primary" @click="addUser" :disabled="!selectedUserName">Hinzufügen</button>
+      </div>
+    </ItemListElement>
+  </ItemList>
 </template>
diff --git a/frontend/src/views/BoardSpendingsView.vue b/frontend/src/views/BoardSpendingsView.vue
index 3489eab..d5c3a08 100644
--- a/frontend/src/views/BoardSpendingsView.vue
+++ b/frontend/src/views/BoardSpendingsView.vue
@@ -6,7 +6,7 @@ import { useBoardStore } from '@/stores/boardStore'
 import { ref } from 'vue'
 
 const store = useBoardStore()
-const spendings = ref(store.getCurrentBoard().users.flatMap((u) => u.spendings))
+const spendings = ref(store.getCurrentBoard()?.spendings)
 </script>
 
 <template>
diff --git a/frontend/src/views/BoardUsersView.vue b/frontend/src/views/BoardUsersView.vue
index 1d21c12..e75db63 100644
--- a/frontend/src/views/BoardUsersView.vue
+++ b/frontend/src/views/BoardUsersView.vue
@@ -7,7 +7,8 @@ import { useBoardStore } from '@/stores/boardStore'
 import { ref } from 'vue'
 
 const store = useBoardStore()
-const users = ref(store.getCurrentBoard().users)
+const users = ref(store.getCurrentBoard()?.getUsers())
+const totals = ref(store.getCurrentBoard()?.getUserSpendingTotals())
 </script>
 
 <template>
@@ -17,7 +18,7 @@ const users = ref(store.getCurrentBoard().users)
       :key="user.name"
       :icon="user.getInitials()"
       :title="user.name"
-      :subtitle="(user.getTotalSpending() / 100).toFixed(2) + '€'"
+      :subtitle="((totals?.get(user.name) || 0) / 100).toFixed(2) + '€'"
       subtitle-class="text-green-700"
     >
       <AddSpendingModal :user-name="user.name" />
diff --git a/frontend/src/views/HomeView.vue b/frontend/src/views/HomeView.vue
index eb8ee45..dd6a821 100644
--- a/frontend/src/views/HomeView.vue
+++ b/frontend/src/views/HomeView.vue
@@ -1,9 +1,33 @@
 <script setup lang="ts">
 import CreateNewList from '../components/CreateNewList.vue'
+import ItemList from '@/components/ItemList.vue'
+import ItemListElement from '@/components/ItemListElement.vue'
+import { useUserStore } from '@/stores/userStore'
+import { useBoardStore } from '@/stores/boardStore'
+import { computed } from 'vue'
+
+const userStore = useUserStore()
+const boardStore = useBoardStore()
+
+const loggedInUser = computed(() => userStore.getLogedInUser())
+const userBoards = computed(() => {
+  const user = loggedInUser.value
+  return user ? boardStore.getBoardsForUser(user) : []
+})
 </script>
 
 <template>
-  <div class="grid h-full place-content-center">
-    <CreateNewList></CreateNewList>
+  <div class="grid h-full justify-center pt-4">
+    <div class="flex flex-col gap-4">
+      <ItemList v-if="userBoards.length > 0" title="Meine Listen">
+        <router-link v-for="board in userBoards" :key="board.guid" :to="'/boards/' + board.guid">
+          <ItemListElement
+            :title="board.name"
+            :subtitle="board.getUsers().length + ' Mitglieder'"
+          />
+        </router-link>
+      </ItemList>
+      <CreateNewList></CreateNewList>
+    </div>
   </div>
 </template>