From dddb57c98b388921e7595ab6bac331e041238979 Mon Sep 17 00:00:00 2001
From: XShine555 <xshine555@gmail.com>
Date: Fri, 25 Sep 2026 02:22:46 +0200
Subject: [PATCH] Add coauthor invitations tab with accept and reject

---
 .../library/LibraryInvitationsSection.svelte  | 92 +++++++++++++++++++
 .../lib/components/ui/primitives/Tabs.svelte  | 11 +++
 .../routes/(app)/library/+layout.server.ts    |  9 ++
 .../src/routes/(app)/library/+layout.svelte   |  9 +-
 .../(app)/library/invitations/+page.server.ts | 25 +++++
 .../(app)/library/invitations/+page.svelte    |  7 ++
 6 files changed, 151 insertions(+), 2 deletions(-)
 create mode 100644 web-player/src/lib/components/music/library/LibraryInvitationsSection.svelte
 create mode 100644 web-player/src/routes/(app)/library/+layout.server.ts
 create mode 100644 web-player/src/routes/(app)/library/invitations/+page.server.ts
 create mode 100644 web-player/src/routes/(app)/library/invitations/+page.svelte

diff --git a/web-player/src/lib/components/music/library/LibraryInvitationsSection.svelte b/web-player/src/lib/components/music/library/LibraryInvitationsSection.svelte
new file mode 100644
index 0000000..cc81289
--- /dev/null
+++ b/web-player/src/lib/components/music/library/LibraryInvitationsSection.svelte
@@ -0,0 +1,92 @@
+<script lang="ts">
+	import type { SubmitFunction } from '@sveltejs/kit';
+	import { flip } from 'svelte/animate';
+	import { enhance } from '$app/forms';
+	import { invalidateAll } from '$app/navigation';
+	import Mail from '@lucide/svelte/icons/mail';
+	import type { CoauthorInvitation } from '$lib/types';
+	import { fmtDate } from '$lib/utils/format';
+	import { collapse } from '$lib/utils/transitions';
+	import Alert from '$lib/components/ui/primitives/Alert.svelte';
+	import Button from '$lib/components/ui/primitives/Button.svelte';
+	import EmptyState from '$lib/components/ui/primitives/EmptyState.svelte';
+	import ListRow from '$lib/components/ui/media/ListRow.svelte';
+
+	interface Props {
+		invitations: CoauthorInvitation[];
+	}
+
+	let { invitations }: Props = $props();
+
+	let hiddenIds = $state<string[]>([]);
+	let error = $state('');
+
+	const visible = $derived(invitations.filter((invitation) => !hiddenIds.includes(invitation.id)));
+
+	const respondSubmit: SubmitFunction = ({ formData }) => {
+		const id = String(formData.get('invitationId'));
+		hiddenIds = [...hiddenIds, id];
+		error = '';
+		return async ({ result, update }) => {
+			if (result.type === 'success') {
+				await update({ reset: false });
+				hiddenIds = hiddenIds.filter((item) => item !== id);
+				return;
+			}
+			hiddenIds = hiddenIds.filter((item) => item !== id);
+			error =
+				result.type === 'failure' && typeof result.data?.message === 'string'
+					? result.data.message
+					: 'No se pudo responder a la invitación.';
+			await invalidateAll();
+		};
+	};
+</script>
+
+{#if error}
+	<Alert tone="danger" class="mt-4">{error}</Alert>
+{/if}
+
+{#if visible.length > 0}
+	<ul class="mt-4 flex flex-col">
+		{#each visible as invitation, i (invitation.id)}
+			<li
+				animate:flip={{ duration: 200 }}
+				out:collapse
+				class="animate-enter"
+				style="--i:{Math.min(i, 9)}"
+			>
+				<ListRow
+					trackId={invitation.trackId}
+					title={invitation.trackTitle}
+					subtitle={invitation.artist}
+					subtitleHref={invitation.ownerUserId}
+					size="lg"
+					class="flex-wrap sm:flex-nowrap"
+				>
+					{#snippet trailing()}
+						<span class="ml-auto hidden text-xs text-fg-2 sm:block">
+							{fmtDate(invitation.invitedAt)}
+						</span>
+						<div class="flex shrink-0 items-center gap-2">
+							<form method="POST" action="?/reject" use:enhance={respondSubmit}>
+								<input type="hidden" name="invitationId" value={invitation.id} />
+								<Button type="submit" size="sm" variant="secondary">Rechazar</Button>
+							</form>
+							<form method="POST" action="?/accept" use:enhance={respondSubmit}>
+								<input type="hidden" name="invitationId" value={invitation.id} />
+								<Button type="submit" size="sm">Aceptar</Button>
+							</form>
+						</div>
+					{/snippet}
+				</ListRow>
+			</li>
+		{/each}
+	</ul>
+{:else}
+	<EmptyState
+		icon={Mail}
+		title="No tienes invitaciones"
+		description="Cuando otro artista te invite a ser coautor de una canción, la verás aquí para aceptarla o rechazarla."
+	/>
+{/if}
diff --git a/web-player/src/lib/components/ui/primitives/Tabs.svelte b/web-player/src/lib/components/ui/primitives/Tabs.svelte
index 681006a..3248908 100644
--- a/web-player/src/lib/components/ui/primitives/Tabs.svelte
+++ b/web-player/src/lib/components/ui/primitives/Tabs.svelte
@@ -3,6 +3,7 @@
 		href: string;
 		label: string;
 		active: boolean;
+		count?: number;
 	}
 
 	interface Props {
@@ -51,6 +52,16 @@
 				: 'text-fg-2 hover:text-fg'}"
 		>
 			{tab.label}
+			{#if tab.count}
+				<span
+					class="ml-1.5 inline-grid min-w-5 place-items-center rounded-full px-1.5 text-xs tabular-nums {tab.active
+						? 'bg-ink/15 text-ink'
+						: 'bg-accent-tint text-accent-soft'}"
+					aria-label="{tab.count} pendientes"
+				>
+					{tab.count}
+				</span>
+			{/if}
 		</a>
 	{/each}
 </nav>
diff --git a/web-player/src/routes/(app)/library/+layout.server.ts b/web-player/src/routes/(app)/library/+layout.server.ts
new file mode 100644
index 0000000..fe20059
--- /dev/null
+++ b/web-player/src/routes/(app)/library/+layout.server.ts
@@ -0,0 +1,9 @@
+import type { LayoutServerLoad } from './$types';
+import { apiFor } from '$lib/server/api';
+import { requireUser } from '$lib/server/guards';
+import { loadInvitationCount } from '$lib/server/coauthors';
+
+export const load: LayoutServerLoad = async ({ locals, url, fetch }) => {
+	requireUser(locals, url);
+	return { invitationCount: await loadInvitationCount(apiFor({ fetch, locals })) };
+};
diff --git a/web-player/src/routes/(app)/library/+layout.svelte b/web-player/src/routes/(app)/library/+layout.svelte
index 897784d..b100151 100644
--- a/web-player/src/routes/(app)/library/+layout.svelte
+++ b/web-player/src/routes/(app)/library/+layout.svelte
@@ -24,7 +24,7 @@
 	import PageHeader from '$lib/components/ui/layout/PageHeader.svelte';
 	import Tabs from '$lib/components/ui/primitives/Tabs.svelte';
 
-	let { children } = $props();
+	let { data, children } = $props();
 
 	const pathname = $derived(page.url.pathname.replace(/\/$/, ''));
 	const current = $derived(
@@ -35,7 +35,12 @@
 		) ?? SECTIONS[0]
 	);
 	const tabs = $derived(
-		SECTIONS.map(({ href, label }) => ({ href, label, active: href === current.href }))
+		SECTIONS.map(({ href, label }) => ({
+			href,
+			label,
+			active: href === current.href,
+			count: href === '/library/invitations' ? data.invitationCount : undefined
+		}))
 	);
 </script>
 
diff --git a/web-player/src/routes/(app)/library/invitations/+page.server.ts b/web-player/src/routes/(app)/library/invitations/+page.server.ts
new file mode 100644
index 0000000..cfe3d6d
--- /dev/null
+++ b/web-player/src/routes/(app)/library/invitations/+page.server.ts
@@ -0,0 +1,25 @@
+import type { PageServerLoad, Actions } from './$types';
+import { fail } from '@sveltejs/kit';
+import { apiFor } from '$lib/server/api';
+import { requireUser } from '$lib/server/guards';
+import { formString } from '$lib/server/forms/fields';
+import { tagged } from '$lib/server/actions/tagged';
+import { loadInvitations, respondToInvitation } from '$lib/server/coauthors';
+
+export const load: PageServerLoad = async ({ locals, url, fetch }) => {
+	requireUser(locals, url);
+	return { invitations: await loadInvitations(apiFor({ fetch, locals })) };
+};
+
+function respond(decision: 'accept' | 'reject') {
+	return tagged(decision, async ({ api, form }) => {
+		const invitationId = formString(form, 'invitationId');
+		if (!invitationId) return fail(400, { message: 'Falta la invitación.' });
+		return respondToInvitation(api, invitationId, decision);
+	});
+}
+
+export const actions: Actions = {
+	accept: respond('accept'),
+	reject: respond('reject')
+};
diff --git a/web-player/src/routes/(app)/library/invitations/+page.svelte b/web-player/src/routes/(app)/library/invitations/+page.svelte
new file mode 100644
index 0000000..bc4e00c
--- /dev/null
+++ b/web-player/src/routes/(app)/library/invitations/+page.svelte
@@ -0,0 +1,7 @@
+<script lang="ts">
+	import LibraryInvitationsSection from '$lib/components/music/library/LibraryInvitationsSection.svelte';
+
+	let { data } = $props();
+</script>
+
+<LibraryInvitationsSection invitations={data.invitations.items} />