feat: paginate member list, add create member button

frontend/src/lib/components/ErrorAlert.svelte

@@ -0,0 +1,15 @@
+<script lang="ts">
+  import type { APIError } from "$lib/api/entities";
+  import { Alert } from "sveltestrap";
+
+  export let error: APIError;
+</script>
+
+<Alert color="danger" fade={false}>
+  <h4 class="alert-heading">An error occurred</h4>
+  <b>{error.code}:</b>
+  {error.message}
+  {#if error.details}
+    ({error.details})
+  {/if}
+</Alert>

frontend/src/routes/@[username]/+page.svelte

@@ -4,15 +4,34 @@
 
   import type { PageData } from "./$types";
 
-  import { Alert, Icon } from "sveltestrap";
+  import {
+    Alert,
+    Button,
+    ButtonGroup,
+    Icon,
+    Input,
+    Modal,
+    ModalBody,
+    ModalFooter,
+  } from "sveltestrap";
   import FieldCard from "$lib/components/FieldCard.svelte";
   import StatusIcon from "$lib/components/StatusIcon.svelte";
   import PronounLink from "$lib/components/PronounLink.svelte";
   import PartialMemberCard from "$lib/components/PartialMemberCard.svelte";
   import FallbackImage from "$lib/components/FallbackImage.svelte";
   import { userStore } from "$lib/store";
-  import { pronounDisplay, userAvatars, WordStatus, type Member } from "$lib/api/entities";
+  import {
+    MAX_MEMBERS,
+    pronounDisplay,
+    userAvatars,
+    WordStatus,
+    type APIError,
+    type Member,
+    type PartialMember,
+  } from "$lib/api/entities";
   import { PUBLIC_BASE_URL } from "$env/static/public";
+  import { apiFetchClient } from "$lib/api/fetch";
+  import ErrorAlert from "$lib/components/ErrorAlert.svelte";
 
   export let data: PageData;
 
@@ -20,8 +39,44 @@
   $: bio = data.bio ? sanitizeHtml(marked.parse(data.bio)) : null;
 
   let memberPage: number = 0;
-  let memberSlice: Member[] = [];
-  $: member = data.members.slice(memberPage * 20, memberPage + 1 * 20);
+  let memberSlice: PartialMember[] = [];
+  $: memberSlice = data.members.slice(memberPage * 20, (memberPage + 1) * 20);
+  const totalPages = Math.floor(data.members.length / 20) + 1;
+
+  const prevPage = () => {
+    if (memberPage === 0) {
+      return;
+    }
+    memberPage = memberPage - 1;
+  };
+
+  const nextPage = () => {
+    if ((memberPage + 1) * 20 > data.members.length) {
+      return;
+    }
+    memberPage = memberPage + 1;
+  };
+
+  let modalOpen = false;
+  let toggleModal = () => (modalOpen = !modalOpen);
+  let newMemberName = "";
+  let newMemberError: APIError | null = null;
+
+  const createMember = async () => {
+    try {
+      const member = await apiFetchClient<Member>("/members", "POST", {
+        name: newMemberName,
+      });
+
+      newMemberName = "";
+      newMemberError = null;
+      data.members = [...data.members, member];
+
+      toggleModal();
+    } catch (e) {
+      newMemberError = e as APIError;
+    }
+  };
 
   const favNames = data.names.filter((entry) => entry.status === WordStatus.Favourite);
   const favPronouns = data.pronouns.filter((entry) => entry.status === WordStatus.Favourite);
@@ -97,15 +152,49 @@
       <div class="row">
         <div class="col">
           <hr />
-          <h2>Members</h2>
+          <h2>
+            Members
+            {#if $userStore && $userStore.id === data.id}
+              <Button
+                color="success"
+                disabled={data.members.length >= MAX_MEMBERS}
+                on:click={toggleModal}><Icon name="person-plus-fill" /> Create member</Button
+              >
+            {/if}
+            {#if totalPages > 1}
+              <ButtonGroup>
+                <Button on:click={prevPage} disabled={memberPage === 0}
+                  ><Icon name="chevron-left" /> Previous page</Button
+                >
+                <Button disabled>Page {memberPage + 1}/{totalPages}</Button>
+                <Button on:click={nextPage} disabled={memberPage === totalPages - 1}
+                  >Next page <Icon name="chevron-right" /></Button
+                >
+              </ButtonGroup>
+            {/if}
+          </h2>
         </div>
       </div>
       <div class="row row-cols-1 row-cols-sm-2 row-cols-md-4 text-center">
-        {#each data.members as member}
+        {#each memberSlice as member}
           <PartialMemberCard user={data} {member} />
         {/each}
       </div>
     {/if}
+    <Modal header="Create member" isOpen={modalOpen} toggle={toggleModal}>
+      <ModalBody>
+        <Input bind:value={newMemberName} />
+        {#if newMemberError}
+          <ErrorAlert error={newMemberError} />
+        {/if}
+      </ModalBody>
+      <ModalFooter>
+        <Button color="primary" on:click={createMember} disabled={newMemberName.length === 0}
+          >Create member</Button
+        >
+        <Button color="secondary" on:click={toggleModal}>Cancel</Button>
+      </ModalFooter>
+    </Modal>
   </div>
 </div>
 

frontend/src/routes/auth/login/discord/+page.svelte

@@ -7,6 +7,7 @@
   import { apiFetch } from "$lib/api/fetch";
   import { userStore } from "$lib/store";
   import type { PageData } from "./$types";
+  import ErrorAlert from "$lib/components/ErrorAlert.svelte";
 
   interface SignupResponse {
     user: MeUser;
@@ -74,11 +75,7 @@
 <h1>Log in with Discord</h1>
 
 {#if data.error}
-  <Alert color="danger" fade={false}>
-    <h4 class="alert-heading">An error occurred</h4>
-    <b>{data.error.code}:</b>
-    {data.error.message}
-  </Alert>
+  <ErrorAlert error={data.error} />
 {/if}
 {#if data.ticket}
   <form on:submit|preventDefault={signupForm}>
@@ -126,10 +123,7 @@
     </Alert>
   {/if}
   {#if deleteError}
-    <Alert color="danger" fade={false}>
-      <h4 class="alert-heading">An error occurred</h4>
-      <b>{deleteError.code}</b>: {deleteError.message}
-    </Alert>
+    <ErrorAlert error={deleteError} />
   {/if}
 {:else}
   Loading...

frontend/src/routes/edit/profile/+page.svelte

@@ -27,6 +27,7 @@
   import EditableField from "../EditableField.svelte";
   import EditableName from "../EditableName.svelte";
   import EditablePronouns from "../EditablePronouns.svelte";
+  import ErrorAlert from "$lib/components/ErrorAlert.svelte";
 
   const MAX_AVATAR_BYTES = 1_000_000;
 
@@ -250,13 +251,7 @@
 </h1>
 
 {#if error}
-  <Alert color="danger" fade={false}>
-    <h4 class="alert-header">An error occurred</h4>
-    <p>
-      <b>{error.code}</b>: {error.message}
-      {#if error.details}{error.details}{/if}
-    </p>
-  </Alert>
+  <ErrorAlert {error} />
 {/if}
 
 {#if !$userStore}

frontend/src/routes/settings/+page.svelte

@@ -2,6 +2,7 @@
   import { goto } from "$app/navigation";
   import { type MeUser, userAvatars, type APIError, MAX_MEMBERS } from "$lib/api/entities";
   import { apiFetchClient } from "$lib/api/fetch";
+  import ErrorAlert from "$lib/components/ErrorAlert.svelte";
   import FallbackImage from "$lib/components/FallbackImage.svelte";
   import { userStore } from "$lib/store";
   import {
@@ -77,10 +78,7 @@
         </p>
       {/if}
       {#if error}
-        <Alert color="danger" fade={false}>
-          <h5 class="alert-heading">An error occurred</h5>
-          <b>{error.code}</b>: {error.message}
-        </Alert>
+        <ErrorAlert {error} />
       {/if}
     </div>
     <div class="col-lg-4">
@@ -137,10 +135,7 @@
             <input type="text" class="form-control" bind:value={deleteUsername} />
           </p>
           {#if deleteError}
-            <Alert color="danger" fade={false}>
-              <h5 class="alert-heading">An error occurred</h5>
-              <b>{deleteError.code}</b>: {deleteError.message}
-            </Alert>
+            <ErrorAlert error={deleteError} />
           {/if}
         </ModalBody>
         <ModalFooter>

frontend/src/routes/settings/invites/+page.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
   import type { APIError, Invite } from "$lib/api/entities";
   import { apiFetchClient } from "$lib/api/fetch";
+  import ErrorAlert from "$lib/components/ErrorAlert.svelte";
   import { Alert, Button, Modal, Table } from "sveltestrap";
   import type { PageData } from "./$types";
 
@@ -54,10 +55,7 @@
       </div>
       <div class="col-md">
         {#if error}
-          <Alert color="danger" fade={false}>
-            <h4 class="alert-heading">An error occurred</h4>
-            <b>{error.code}</b>: {error.message}
-          </Alert>
+          <ErrorAlert {error} />
         {/if}
       </div>
     </div>