Add user avatar management and moderation

src/routes/account/+page.server.ts

@@ -4,6 +4,7 @@ import { hashPassword, verifyPassword } from '$lib/server/auth/password';
 import { getDatabase } from '$lib/server/database';
 import { fail, redirect } from '@sveltejs/kit';
 import type { Actions, PageServerLoad } from './$types';
+import { AVATAR_PRESETS, AvatarValidationError, processAvatarUpload, saveUploadedAvatar, selectPresetAvatar } from '$lib/server/avatars';
 
 export const load: PageServerLoad = async ({ cookies, url }) => {
 	const user = await getSessionUser(cookies);
@@ -51,11 +52,38 @@ export const load: PageServerLoad = async ({ cookies, url }) => {
 		hasPassword: typeof connection?.password_hash === 'string',
 		chooseDisplayName: url.searchParams.has('choose_display_name'),
 		discordLinked: url.searchParams.has('discord_linked'),
-		oauthError
+		oauthError,
+		avatarPresets: AVATAR_PRESETS
 	};
 };
 
 export const actions: Actions = {
+	selectAvatar: async ({ request, cookies }) => {
+		const user = await getSessionUser(cookies);
+		if (!user) redirect(303, '/sign-in');
+		const preset = String((await request.formData()).get('preset') ?? '');
+		try {
+			await selectPresetAvatar(await getDatabase(), user.id, preset);
+			return { avatarChanged: true };
+		} catch (error) {
+			if (error instanceof AvatarValidationError) return fail(400, { avatarError: error.message });
+			throw error;
+		}
+	},
+	uploadAvatar: async ({ request, cookies }) => {
+		const user = await getSessionUser(cookies);
+		if (!user) redirect(303, '/sign-in');
+		const file = (await request.formData()).get('avatar');
+		if (!(file instanceof File)) return fail(400, { avatarError: 'Choose an image to upload.' });
+		try {
+			const output = await processAvatarUpload(file);
+			await saveUploadedAvatar(await getDatabase(), user.id, output);
+			return { avatarChanged: true };
+		} catch (error) {
+			if (error instanceof AvatarValidationError) return fail(400, { avatarError: error.message });
+			throw error;
+		}
+	},
 	changeLoginUsername: async ({ request, cookies }) => {
 		const user = await getSessionUser(cookies);
 		if (!user) redirect(303, '/sign-in');