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feat: add audio clip annotation view for dialect rating

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smaubio
2026-03-13 14:49:46 +01:00
parent 2b6d23c406
commit a823e968a2
12 changed files with 2022 additions and 4 deletions
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10
drizzle/0006_polite_moondragon.sql Normal file
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CREATE TABLE `annotation` (
`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
`dataset_entry_id` integer NOT NULL,
`user_id` text NOT NULL,
`rating` integer NOT NULL,
`created_at` integer DEFAULT (unixepoch()) NOT NULL,
FOREIGN KEY (`dataset_entry_id`) REFERENCES `dataset_entry`(`id`) ON UPDATE no action ON DELETE no action
);
--> statement-breakpoint
CREATE UNIQUE INDEX `annotation_user_entry_idx` ON `annotation` (`user_id`,`dataset_entry_id`);

3
drizzle/0007_flawless_wonder_man.sql Normal file
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DROP INDEX `annotation_user_entry_idx`;--> statement-breakpoint
ALTER TABLE `annotation` ADD `dialect_label` text NOT NULL;--> statement-breakpoint
CREATE UNIQUE INDEX `annotation_user_entry_dialect_idx` ON `annotation` (`user_id`,`dataset_entry_id`,`dialect_label`);

611
drizzle/meta/0006_snapshot.json Normal file
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{
"version": "6",
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},
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"type": "integer",
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},
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"name": "user_id",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"rating": {
"name": "rating",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
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"default": "(unixepoch())"
}
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"name": "annotation_user_entry_idx",
"columns": [
"user_id",
"dataset_entry_id"
],
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}
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"tableTo": "dataset_entry",
"columnsFrom": [
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],
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"onDelete": "no action",
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},
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"type": "text",
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},
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"notNull": true,
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},
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"type": "text",
"primaryKey": false,
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},
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"notNull": false,
"autoincrement": false
},
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"name": "refresh_token_expires_at",
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},
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"name": "scope",
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},
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"name": "password",
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},
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"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
},
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"account_user_id_user_id_fk": {
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],
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"onDelete": "cascade",
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}
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"uniqueConstraints": {},
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"expires_at": {
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},
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},
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"notNull": true,
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"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
},
"updated_at": {
"name": "updated_at",
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"ip_address": {
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"type": "text",
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},
"user_agent": {
"name": "user_agent",
"type": "text",
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"autoincrement": false
},
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}
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],
"isUnique": true
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"columns": [
"user_id"
],
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}
},
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"name": "session_user_id_user_id_fk",
"tableFrom": "session",
"tableTo": "user",
"columnsFrom": [
"user_id"
],
"columnsTo": [
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],
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}
},
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"uniqueConstraints": {},
"checkConstraints": {}
},
"user": {
"name": "user",
"columns": {
"id": {
"name": "id",
"type": "text",
"primaryKey": true,
"notNull": true,
"autoincrement": false
},
"name": {
"name": "name",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"email": {
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"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"email_verified": {
"name": "email_verified",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": false
},
"image": {
"name": "image",
"type": "text",
"primaryKey": false,
"notNull": false,
"autoincrement": false
},
"admin": {
"name": "admin",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": false
},
"created_at": {
"name": "created_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
},
"updated_at": {
"name": "updated_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
}
},
"indexes": {
"user_email_unique": {
"name": "user_email_unique",
"columns": [
"email"
],
"isUnique": true
}
},
"foreignKeys": {},
"compositePrimaryKeys": {},
"uniqueConstraints": {},
"checkConstraints": {}
},
"verification": {
"name": "verification",
"columns": {
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"name": "id",
"type": "text",
"primaryKey": true,
"notNull": true,
"autoincrement": false
},
"identifier": {
"name": "identifier",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"value": {
"name": "value",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"expires_at": {
"name": "expires_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"created_at": {
"name": "created_at",
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"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
},
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"notNull": true,
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"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
}
},
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"identifier"
],
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"checkConstraints": {}
},
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},
"external_id": {
"name": "external_id",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"speaker_id": {
"name": "speaker_id",
"type": "text",
"primaryKey": false,
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},
"model_name": {
"name": "model_name",
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"notNull": true,
"autoincrement": false
},
"utterance_id": {
"name": "utterance_id",
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},
"utterance_text": {
"name": "utterance_text",
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},
"dataset_id": {
"name": "dataset_id",
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},
"file_name": {
"name": "file_name",
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},
"dialect": {
"name": "dialect",
"type": "text",
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},
"iteration": {
"name": "iteration",
"type": "integer",
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},
"duration_ms": {
"name": "duration_ms",
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},
"created_at": {
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"name": "dataset_entry_dataset_id_dataset_id_fk",
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"tableTo": "dataset",
"columnsFrom": [
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],
"columnsTo": [
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"onDelete": "no action",
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"name": {
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},
"description": {
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"default": "(unixepoch())"
},
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"default": "(unixepoch())"
}
},
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}
},
"views": {},
"enums": {},
"_meta": {
"schemas": {},
"tables": {},
"columns": {}
},
"internal": {
"indexes": {}
}
}

619
drizzle/meta/0007_snapshot.json Normal file
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@@ -0,0 +1,619 @@
{
"version": "6",
"dialect": "sqlite",
"id": "49f84327-9f41-4e67-bf1b-09621233e349",
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}
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},
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},
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},
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},
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},
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],
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},
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},
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"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"value": {
"name": "value",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"expires_at": {
"name": "expires_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"created_at": {
"name": "created_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
},
"updated_at": {
"name": "updated_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(cast(unixepoch('subsecond') * 1000 as integer))"
}
},
"indexes": {
"verification_identifier_idx": {
"name": "verification_identifier_idx",
"columns": [
"identifier"
],
"isUnique": false
}
},
"foreignKeys": {},
"compositePrimaryKeys": {},
"uniqueConstraints": {},
"checkConstraints": {}
},
"dataset_entry": {
"name": "dataset_entry",
"columns": {
"id": {
"name": "id",
"type": "integer",
"primaryKey": true,
"notNull": true,
"autoincrement": true
},
"external_id": {
"name": "external_id",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"speaker_id": {
"name": "speaker_id",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"model_name": {
"name": "model_name",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"utterance_id": {
"name": "utterance_id",
"type": "text",
"primaryKey": false,
"notNull": false,
"autoincrement": false
},
"utterance_text": {
"name": "utterance_text",
"type": "text",
"primaryKey": false,
"notNull": false,
"autoincrement": false
},
"dataset_id": {
"name": "dataset_id",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"file_name": {
"name": "file_name",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"dialect": {
"name": "dialect",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"iteration": {
"name": "iteration",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"duration_ms": {
"name": "duration_ms",
"type": "integer",
"primaryKey": false,
"notNull": false,
"autoincrement": false
},
"created_at": {
"name": "created_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(unixepoch())"
},
"updated_at": {
"name": "updated_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(unixepoch())"
}
},
"indexes": {},
"foreignKeys": {
"dataset_entry_dataset_id_dataset_id_fk": {
"name": "dataset_entry_dataset_id_dataset_id_fk",
"tableFrom": "dataset_entry",
"tableTo": "dataset",
"columnsFrom": [
"dataset_id"
],
"columnsTo": [
"id"
],
"onDelete": "no action",
"onUpdate": "no action"
}
},
"compositePrimaryKeys": {},
"uniqueConstraints": {},
"checkConstraints": {}
},
"dataset": {
"name": "dataset",
"columns": {
"id": {
"name": "id",
"type": "integer",
"primaryKey": true,
"notNull": true,
"autoincrement": true
},
"name": {
"name": "name",
"type": "text",
"primaryKey": false,
"notNull": true,
"autoincrement": false
},
"description": {
"name": "description",
"type": "text",
"primaryKey": false,
"notNull": false,
"autoincrement": false
},
"created_at": {
"name": "created_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(unixepoch())"
},
"updated_at": {
"name": "updated_at",
"type": "integer",
"primaryKey": false,
"notNull": true,
"autoincrement": false,
"default": "(unixepoch())"
}
},
"indexes": {},
"foreignKeys": {},
"compositePrimaryKeys": {},
"uniqueConstraints": {},
"checkConstraints": {}
}
},
"views": {},
"enums": {},
"_meta": {
"schemas": {},
"tables": {},
"columns": {}
},
"internal": {
"indexes": {}
}
}

14
drizzle/meta/_journal.json
View File

@@ -43,6 +43,20 @@
"when": 1773395728082,
"tag": "0005_flashy_piledriver",
"breakpoints": true
},
{
"idx": 6,
"version": "6",
"when": 1773406795226,
"tag": "0006_polite_moondragon",
"breakpoints": true
},
{
"idx": 7,
"version": "6",
"when": 1773407494321,
"tag": "0007_flawless_wonder_man",
"breakpoints": true
}
]
}

135
src/app/actions/annotations.ts Normal file
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@@ -0,0 +1,135 @@
'use server';
import db from '@/lib/db';
import { dataset_entry } from '@/lib/model/dataset_entry';
import { dataset } from '@/lib/model/dataset';
import { annotation } from '@/lib/model/annotation';
import { eq, and } from 'drizzle-orm';
import { auth } from '@/lib/auth';
import { headers } from 'next/headers';
import type { AnnotationEntry } from '@/lib/dialects';
/**
* Returns shuffled unannotated entries for the given dataset and authenticated user.
* Consecutive entries will never share the same externalId.
*/
export async function getAnnotationEntries(datasetId: number): Promise<AnnotationEntry[]> {
const session = await auth.api.getSession({ headers: await headers() });
if (!session) throw new Error('Nicht angemeldet');
const allEntries = await db
.select()
.from(dataset_entry)
.where(eq(dataset_entry.datasetId, datasetId));
if (allEntries.length === 0) return [];
// Find entries already annotated by this user in this dataset (via join)
const annotated = await db
.select({ entryId: annotation.datasetEntryId })
.from(annotation)
.innerJoin(dataset_entry, eq(annotation.datasetEntryId, dataset_entry.id))
.where(
and(
eq(annotation.userId, session.user.id),
eq(dataset_entry.datasetId, datasetId)
)
);
const annotatedIds = new Set(annotated.map((a) => a.entryId));
const remaining = allEntries.filter((e) => !annotatedIds.has(e.id));
const mapped: AnnotationEntry[] = remaining.map((e) => ({
id: e.id,
externalId: e.externalId,
fileName: e.fileName,
dialect: e.dialect,
durationMs: e.durationMs,
datasetId: e.datasetId,
}));
return shuffleWithConstraint(mapped);
}
/**
* Persists a batch of ratings for the authenticated user.
* Silently ignores duplicates (onConflictDoNothing).
*/
export async function saveAnnotations(
ratings: { entryId: number; rating: number; dialectLabel: string }[]
): Promise<void> {
const session = await auth.api.getSession({ headers: await headers() });
if (!session) throw new Error('Nicht angemeldet');
if (ratings.length === 0) return;
for (const { entryId, rating, dialectLabel } of ratings) {
await db
.insert(annotation)
.values({ datasetEntryId: entryId, userId: session.user.id, rating, dialectLabel })
.onConflictDoNothing();
}
}
/** Returns all datasets (for the home page). */
export async function getAllDatasets() {
return db.select().from(dataset).orderBy(dataset.name);
}
/** Returns annotation progress for the current user in a dataset. */
export async function getAnnotationProgress(
datasetId: number
): Promise<{ total: number; done: number }> {
const session = await auth.api.getSession({ headers: await headers() });
const allEntries = await db
.select({ id: dataset_entry.id })
.from(dataset_entry)
.where(eq(dataset_entry.datasetId, datasetId));
if (!session || allEntries.length === 0) {
return { total: allEntries.length, done: 0 };
}
const annotated = await db
.select({ entryId: annotation.datasetEntryId })
.from(annotation)
.innerJoin(dataset_entry, eq(annotation.datasetEntryId, dataset_entry.id))
.where(
and(
eq(annotation.userId, session.user.id),
eq(dataset_entry.datasetId, datasetId)
)
);
return { total: allEntries.length, done: annotated.length };
}
// ---------------------------------------------------------------------------
// Helpers
// ---------------------------------------------------------------------------
/** Fisher-Yates shuffle with a greedy fix for consecutive same externalId. */
function shuffleWithConstraint(entries: AnnotationEntry[]): AnnotationEntry[] {
if (entries.length <= 1) return entries;
const arr = [...entries];
for (let i = arr.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[arr[i], arr[j]] = [arr[j], arr[i]];
}
// Single-pass greedy fix
for (let i = 1; i < arr.length; i++) {
if (arr[i].externalId === arr[i - 1].externalId) {
for (let j = i + 1; j < arr.length; j++) {
if (arr[j].externalId !== arr[i - 1].externalId) {
[arr[i], arr[j]] = [arr[j], arr[i]];
break;
}
}
}
}
return arr;
}

53
src/app/annotate/[datasetId]/page.tsx Normal file
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@@ -0,0 +1,53 @@
import { redirect } from 'next/navigation';
import { headers } from 'next/headers';
import Link from 'next/link';
import { auth } from '@/lib/auth';
import { getAnnotationEntries } from '@/app/actions/annotations';
import AnnotationView from '@/components/AnnotationView';
interface Props {
params: Promise<{ datasetId: string }>;
}
export default async function AnnotatePage({ params }: Props) {
const session = await auth.api.getSession({ headers: await headers() });
if (!session) redirect('/user/sign-in');
const { datasetId: datasetIdStr } = await params;
const datasetId = parseInt(datasetIdStr, 10);
if (isNaN(datasetId)) {
return (
<div className="max-w-xl mx-auto py-16 text-center">
<p className="text-gray-600">Ungültige Dataset-ID.</p>
<Link href="/" className="text-blue-600 hover:underline mt-4 inline-block">
← Startseite
</Link>
</div>
);
}
const entries = await getAnnotationEntries(datasetId);
if (entries.length === 0) {
return (
<div className="max-w-xl mx-auto py-20 text-center">
<div className="text-5xl mb-4">✓</div>
<h1 className="text-2xl font-bold text-green-600 mb-3">
Alle Samples bewertet!
</h1>
<p className="text-gray-600 mb-8">
Sie haben alle Samples in diesem Dataset bereits bewertet. Danke für Ihre Mitarbeit!
</p>
<Link
href="/"
className="px-6 py-3 bg-blue-600 hover:bg-blue-700 text-white font-semibold rounded-lg transition-colors"
>
Zurück zur Startseite
</Link>
</div>
);
}
return <AnnotationView entries={entries} datasetId={datasetId} />;
}

110
src/app/page.tsx
View File

@@ -1,5 +1,109 @@
"use client";
import Link from 'next/link';
import { headers } from 'next/headers';
import { auth } from '@/lib/auth';
import { getAllDatasets, getAnnotationProgress } from '@/app/actions/annotations';
export default function Page() {
return <h1>Hello Next.js!</h1>
export default async function HomePage() {
const session = await auth.api.getSession({ headers: await headers() });
if (!session) {
return (
<div className="max-w-xl mx-auto text-center py-20">
<h1 className="text-3xl font-bold text-gray-800 mb-4">
Willkommen zur Dialektannotation
</h1>
<p className="text-gray-600 mb-8">
Bitte melden Sie sich an, um mit der Annotation zu beginnen.
</p>
<Link
href="/user/sign-in"
className="px-6 py-3 bg-blue-600 hover:bg-blue-700 text-white font-semibold rounded-lg transition-colors"
>
Anmelden
</Link>
</div>
);
}
const datasets = await getAllDatasets();
if (datasets.length === 0) {
return (
<div className="max-w-xl mx-auto text-center py-20">
<h1 className="text-2xl font-bold text-gray-800 mb-3">
Keine Datasets verfügbar
</h1>
<p className="text-gray-500">
Es wurden noch keine Datasets angelegt. Wenden Sie sich an einen Administrator.
</p>
</div>
);
}
// Fetch progress for all datasets in parallel
const progressData = await Promise.all(
datasets.map((ds) => getAnnotationProgress(ds.id))
);
return (
<div className="max-w-2xl mx-auto py-8">
<h1 className="text-2xl font-bold text-gray-800 mb-2">Datasets</h1>
<p className="text-gray-500 mb-8">
Wählen Sie ein Dataset aus, um mit der Annotation zu beginnen oder fortzufahren.
</p>
<div className="flex flex-col gap-4">
{datasets.map((ds, i) => {
const { total, done } = progressData[i];
const pct = total > 0 ? Math.round((done / total) * 100) : 0;
const isFinished = total > 0 && done >= total;
return (
<div
key={ds.id}
className="bg-white border border-gray-200 rounded-xl p-5 shadow-sm"
>
<div className="flex items-start justify-between gap-4">
<div className="flex-1 min-w-0">
<h2 className="font-semibold text-gray-800 truncate">{ds.name}</h2>
{ds.description && (
<p className="text-sm text-gray-500 mt-0.5">{ds.description}</p>
)}
{/* Progress */}
<div className="mt-3">
<div className="flex justify-between text-xs text-gray-400 mb-1">
<span>{done} / {total} bewertet</span>
<span>{pct}%</span>
</div>
<div className="w-full bg-gray-200 rounded-full h-2">
<div
className={`h-2 rounded-full transition-all ${
isFinished ? 'bg-green-500' : 'bg-blue-500'
}`}
style={{ width: `${pct}%` }}
/>
</div>
</div>
</div>
<Link
href={`/annotate/${ds.id}`}
className={`flex-shrink-0 px-4 py-2 rounded-lg font-medium text-sm transition-colors ${
isFinished
? 'bg-green-100 text-green-700 hover:bg-green-200'
: done > 0
? 'bg-blue-600 hover:bg-blue-700 text-white'
: 'bg-blue-600 hover:bg-blue-700 text-white'
}`}
>
{isFinished ? '✓ Fertig' : done > 0 ? 'Fortsetzen' : 'Starten'}
</Link>
</div>
</div>
);
})}
</div>
</div>
);
}

227
src/components/AnnotationView.tsx Normal file
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@@ -0,0 +1,227 @@
'use client';
import { useState, useTransition } from 'react';
import Link from 'next/link';
import WaveformPlayer from './WaveformPlayer';
import { saveAnnotations } from '@/app/actions/annotations';
import { type AnnotationEntry, DIALECT_LABELS } from '@/lib/dialects';
const PAGE_SIZE = 5;
const RATING_OPTIONS = (dialectLabel: string) => [
{ value: 1, label: `Klingt überhaupt nicht nach ${dialectLabel}` },
{ value: 2, label: `Klingt eher nicht nach ${dialectLabel}` },
{ value: 3, label: 'Schwer zu beurteilen' },
{ value: 4, label: `Klingt eher nach ${dialectLabel}` },
{ value: 5, label: `Klingt eindeutig nach ${dialectLabel}` },
];
interface AnnotationViewProps {
entries: AnnotationEntry[];
datasetId: number;
}
export default function AnnotationView({ entries, datasetId }: AnnotationViewProps) {
const [isPending, startTransition] = useTransition();
const [currentPage, setCurrentPage] = useState(0);
const [answers, setAnswers] = useState<Record<number, number>>({});
const [fullyPlayed, setFullyPlayed] = useState<Set<number>>(new Set());
const [activePlayerId, setActivePlayerId] = useState<number | null>(null);
const [showHint, setShowHint] = useState(false);
const [isComplete, setIsComplete] = useState(false);
const totalPages = Math.ceil(entries.length / PAGE_SIZE);
const pageEntries = entries.slice(currentPage * PAGE_SIZE, (currentPage + 1) * PAGE_SIZE);
const progressPct = Math.round((currentPage / totalPages) * 100);
const allCurrentDone =
pageEntries.length > 0 &&
pageEntries.every((e) => fullyPlayed.has(e.id) && answers[e.id] !== undefined);
const handleWeiter = () => {
if (!allCurrentDone) {
setShowHint(true);
return;
}
setShowHint(false);
const batch = pageEntries.map((e) => ({ entryId: e.id, rating: answers[e.id], dialectLabel: e.dialect }));
startTransition(async () => {
await saveAnnotations(batch);
if (currentPage + 1 >= totalPages) {
setIsComplete(true);
} else {
setCurrentPage((p) => p + 1);
setActivePlayerId(null);
}
});
};
if (isComplete) {
return (
<div className="max-w-xl mx-auto text-center py-20">
<div className="text-5xl mb-4">✓</div>
<h1 className="text-3xl font-bold text-green-600 mb-3">Fertig!</h1>
<p className="text-gray-600 mb-8">
Alle Samples wurden erfolgreich bewertet. Vielen Dank!
</p>
<Link
href="/"
className="px-6 py-3 bg-blue-600 hover:bg-blue-700 text-white font-semibold rounded-lg transition-colors"
>
Zurück zur Startseite
</Link>
</div>
);
}
return (
<div className="max-w-3xl mx-auto">
{/* ── Top bar ─────────────────────────────────────────── */}
<div className="sticky top-[72px] z-40 bg-white border-b border-gray-200 pb-3 mb-6">
<div className="flex items-center justify-between mb-2">
<span className="text-sm text-gray-500">
Seite {currentPage + 1} von {totalPages}
</span>
<Link
href="/"
className="text-sm px-3 py-1.5 bg-gray-100 hover:bg-gray-200 text-gray-700 rounded-md transition-colors"
>
← Zurück zur Startseite
</Link>
</div>
{/* Progress bar */}
<div className="w-full bg-gray-200 rounded-full h-2.5">
<div
className="bg-blue-500 h-2.5 rounded-full transition-all duration-500"
style={{ width: `${progressPct}%` }}
/>
</div>
<div className="text-xs text-gray-400 mt-1 text-right">{progressPct}% abgeschlossen</div>
</div>
{/* ── Sample cards ────────────────────────────────────── */}
<div className="flex flex-col gap-6">
{pageEntries.map((entry, idx) => {
const dialectLabel = DIALECT_LABELS[entry.dialect] ?? entry.dialect;
const fileExt = entry.fileName.substring(entry.fileName.lastIndexOf('.'));
const audioSrc = `/public/datasets/${datasetId}/${entry.externalId}${fileExt}`;
const isListened = fullyPlayed.has(entry.id);
const currentRating = answers[entry.id] ?? null;
return (
<div
key={entry.id}
className={`border rounded-xl p-5 bg-white shadow-sm transition-colors ${
isListened && currentRating !== null
? 'border-green-300'
: 'border-gray-200'
}`}
>
{/* Sample header */}
<div className="flex items-center justify-between mb-3">
<span className="text-xs font-medium text-gray-400 uppercase tracking-wide">
Sample {currentPage * PAGE_SIZE + idx + 1}
</span>
{isListened && (
<span className="text-xs text-green-600 font-medium">
✓ Gehört
</span>
)}
</div>
{/* Waveform player */}
<WaveformPlayer
src={audioSrc}
durationMs={entry.durationMs}
isActive={activePlayerId === entry.id}
onPlay={() => setActivePlayerId(entry.id)}
onFullyPlayed={() =>
setFullyPlayed((prev) => {
const next = new Set(prev);
next.add(entry.id);
return next;
})
}
/>
{/* Must-listen hint */}
{!isListened && (
<p className="text-xs text-amber-600 mt-2">
Bitte das Sample vollständig anhören, bevor Sie eine Bewertung abgeben.
</p>
)}
{/* Dialect + question */}
<div className="mt-4 mb-3">
<p className="text-sm font-semibold text-gray-700">
Wie authentisch klingt dieses Sample nach dem Dialekt der Region{' '}
<span className="text-blue-600">{dialectLabel}</span>?
</p>
</div>
{/* Rating buttons */}
<div className="flex flex-col gap-2">
{RATING_OPTIONS(dialectLabel).map(({ value, label }) => {
const selected = currentRating === value;
const disabled = !isListened;
return (
<button
key={value}
disabled={disabled}
onClick={() =>
setAnswers((prev) => ({ ...prev, [entry.id]: value }))
}
className={`flex items-center gap-3 w-full text-left px-4 py-2.5 rounded-lg border text-sm transition-colors ${
disabled
? 'opacity-40 cursor-not-allowed border-gray-200 bg-gray-50 text-gray-500'
: selected
? 'border-blue-500 bg-blue-50 text-blue-800 font-medium'
: 'border-gray-200 hover:border-blue-300 hover:bg-blue-50 text-gray-700'
}`}
>
<span
className={`flex-shrink-0 w-6 h-6 rounded-full border-2 flex items-center justify-center text-xs font-bold ${
selected
? 'border-blue-500 bg-blue-500 text-white'
: 'border-gray-300 text-gray-400'
}`}
>
{value}
</span>
{label}
</button>
);
})}
</div>
</div>
);
})}
</div>
{/* ── Navigation ──────────────────────────────────────── */}
<div className="mt-8 mb-12 flex flex-col items-end gap-2">
{showHint && !allCurrentDone && (
<p className="text-sm text-red-600">
Bitte alle{' '}
{pageEntries.length < PAGE_SIZE ? pageEntries.length : PAGE_SIZE}{' '}
Samples vollständig anhören und bewerten, bevor Sie fortfahren.
</p>
)}
<button
onClick={handleWeiter}
disabled={isPending}
className={`px-8 py-3 rounded-lg font-semibold text-white transition-colors ${
allCurrentDone && !isPending
? 'bg-blue-600 hover:bg-blue-700 cursor-pointer'
: 'bg-gray-300 cursor-not-allowed'
}`}
>
{isPending ? 'Speichern…' : currentPage + 1 >= totalPages ? 'Abschließen' : 'Weiter →'}
</button>
</div>
</div>
);
}

187
src/components/WaveformPlayer.tsx Normal file
View File

@@ -0,0 +1,187 @@
'use client';
import { useEffect, useRef, useState, useCallback } from 'react';
interface WaveformPlayerProps {
src: string;
durationMs?: number | null;
/** When false the player should stop if it was playing */
isActive: boolean;
onPlay: () => void;
onFullyPlayed: () => void;
}
const BAR_COUNT = 120;
export default function WaveformPlayer({
src,
durationMs,
isActive,
onPlay,
onFullyPlayed,
}: WaveformPlayerProps) {
const audioRef = useRef<HTMLAudioElement>(null);
const canvasRef = useRef<HTMLCanvasElement>(null);
const rafRef = useRef<number>(0);
const [isPlaying, setIsPlaying] = useState(false);
const [currentTime, setCurrentTime] = useState(0);
const [duration, setDuration] = useState<number>(durationMs ? durationMs / 1000 : 0);
const [peaks, setPeaks] = useState<number[]>([]);
const fullyPlayedRef = useRef(false);
// Stop if another player became active
useEffect(() => {
if (!isActive && isPlaying) {
audioRef.current?.pause();
cancelAnimationFrame(rafRef.current);
setIsPlaying(false);
}
}, [isActive, isPlaying]);
// Decode audio and generate waveform peaks
useEffect(() => {
let cancelled = false;
(async () => {
try {
const res = await fetch(src);
const buf = await res.arrayBuffer();
const actx = new AudioContext();
const decoded = await actx.decodeAudioData(buf);
if (cancelled) return;
const data = decoded.getChannelData(0);
const blockSize = Math.floor(data.length / BAR_COUNT);
const raw: number[] = [];
for (let i = 0; i < BAR_COUNT; i++) {
let sum = 0;
for (let j = 0; j < blockSize; j++) {
sum += Math.abs(data[i * blockSize + j]);
}
raw.push(sum / blockSize);
}
const max = Math.max(...raw, 0.001);
if (!cancelled) setPeaks(raw.map((v) => v / max));
await actx.close();
} catch {
if (!cancelled) setPeaks(Array(BAR_COUNT).fill(0.5));
}
})();
return () => { cancelled = true; };
}, [src]);
// Draw waveform on canvas whenever peaks or playback position change
useEffect(() => {
const canvas = canvasRef.current;
if (!canvas || peaks.length === 0) return;
const ctx = canvas.getContext('2d');
if (!ctx) return;
const { width, height } = canvas;
ctx.clearRect(0, 0, width, height);
const progress = duration > 0 ? Math.min(currentTime / duration, 1) : 0;
const barW = Math.max(1, width / BAR_COUNT - 1);
peaks.forEach((peak, i) => {
const x = (i / BAR_COUNT) * width;
const barH = Math.max(2, peak * height * 0.85);
const y = (height - barH) / 2;
const played = i / BAR_COUNT < progress;
ctx.fillStyle = played ? '#3b82f6' : '#d1d5db';
ctx.beginPath();
ctx.roundRect(x, y, barW, barH, 2);
ctx.fill();
});
}, [peaks, currentTime, duration]);
const tick = useCallback(() => {
const audio = audioRef.current;
if (!audio) return;
setCurrentTime(audio.currentTime);
rafRef.current = requestAnimationFrame(tick);
}, []);
const handlePlay = () => {
const audio = audioRef.current;
if (!audio) return;
onPlay();
audio.play();
setIsPlaying(true);
rafRef.current = requestAnimationFrame(tick);
};
const handlePause = () => {
const audio = audioRef.current;
if (!audio) return;
audio.pause();
setIsPlaying(false);
cancelAnimationFrame(rafRef.current);
};
const handleEnded = () => {
setIsPlaying(false);
cancelAnimationFrame(rafRef.current);
if (!fullyPlayedRef.current) {
fullyPlayedRef.current = true;
onFullyPlayed();
}
};
const handleLoadedMetadata = () => {
if (audioRef.current) setDuration(audioRef.current.duration);
};
const fmt = (s: number) => {
const m = Math.floor(s / 60);
const sec = Math.floor(s % 60);
return `${m}:${sec.toString().padStart(2, '0')}`;
};
return (
<div className="flex flex-col gap-2">
<audio
ref={audioRef}
src={src}
onEnded={handleEnded}
onLoadedMetadata={handleLoadedMetadata}
preload="metadata"
/>
<div className="flex items-center gap-3">
{/* Play / Pause button */}
<button
onClick={isPlaying ? handlePause : handlePlay}
className={`flex-shrink-0 inline-flex items-center justify-center w-9 h-9 rounded-full transition-colors ${
isPlaying
? 'bg-red-500 hover:bg-red-600 text-white'
: 'bg-blue-500 hover:bg-blue-600 text-white'
}`}
title={isPlaying ? 'Pause' : 'Abspielen'}
>
{isPlaying ? (
<svg className="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
<rect x="5" y="4" width="3" height="12" rx="1" />
<rect x="12" y="4" width="3" height="12" rx="1" />
</svg>
) : (
<svg className="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
<path d="M6.3 2.841A1.5 1.5 0 004 4.11v11.78a1.5 1.5 0 002.3 1.269l9.344-5.89a1.5 1.5 0 000-2.538L6.3 2.84z" />
</svg>
)}
</button>
{/* Waveform canvas */}
<canvas
ref={canvasRef}
width={480}
height={48}
className="flex-1 rounded"
style={{ imageRendering: 'pixelated' }}
/>
{/* Duration */}
<span className="flex-shrink-0 text-sm text-gray-500 w-10 text-right tabular-nums">
{fmt(duration)}
</span>
</div>
</div>
);
}

19
src/lib/dialects.ts Normal file
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export const DIALECT_LABELS: Record<string, string> = {
ch_be: 'Bern',
ch_bs: 'Basel',
ch_gr: 'Graubünden',
ch_in: 'Innerschweiz',
ch_os: 'Ostschweiz',
ch_vs: 'Wallis',
ch_zh: 'Zürich',
de: 'Deutsch',
};
export type AnnotationEntry = {
id: number;
externalId: string;
fileName: string;
dialect: string;
durationMs: number | null;
datasetId: number;
};

36
src/lib/model/annotation.ts Normal file
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import { sqliteTable, text, integer, uniqueIndex } from 'drizzle-orm/sqlite-core';
import { relations, sql } from 'drizzle-orm';
import { dataset_entry } from './dataset_entry';
export const annotation = sqliteTable(
'annotation',
{
id: integer('id').primaryKey({ autoIncrement: true }),
datasetEntryId: integer('dataset_entry_id')
.notNull()
.references(() => dataset_entry.id),
userId: text('user_id').notNull(),
rating: integer('rating').notNull(), // 1–5
dialectLabel: text('dialect_label').notNull(), // e.g. 'ch_be', 'ch_zh', …
createdAt: integer('created_at', { mode: 'timestamp' })
.notNull()
.default(sql`(unixepoch())`),
},
(table) => [
uniqueIndex('annotation_user_entry_dialect_idx').on(
table.userId,
table.datasetEntryId,
table.dialectLabel
),
]
);
export const annotationRelations = relations(annotation, ({ one }) => ({
datasetEntry: one(dataset_entry, {
fields: [annotation.datasetEntryId],
references: [dataset_entry.id],
}),
}));
export type Annotation = typeof annotation.$inferSelect;
export type NewAnnotation = typeof annotation.$inferInsert;