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Merged
khrees merged 2 commits into from
Apr 7, 2026
Merged

Feat/cmd k commit search #3

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5c4a18e
feat: implement semantic commit search API and update UI typography a…
khrees Apr 5, 2026
edfc878
refactor: consolidate API security and rate limiting into a unified g…
khrees Apr 5, 2026
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5 changes: 5 additions & 0 deletions .gitignore
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Expand Up @@ -39,3 +39,8 @@ yarn-error.log*
# typescript
*.tsbuildinfo
next-env.d.ts


*.db

dev.db.
16 changes: 16 additions & 0 deletions CLAUDE.md
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@@ -0,0 +1,16 @@
# Grepbase Project Guidelines

## React Patterns

### Hooks Usage

**Do NOT use `useEffect`** for derived state or side effects that can be handled declaratively.

- State initialization should use lazy initializers in `useState`, not `useEffect`
- Derived values should use `useMemo`, not `useEffect` + state
- Prefer event handlers over effects for user-triggered changes

If you think you need `useEffect`, consider:
1. Can this be computed during render?
2. Can this be handled in an event handler?
3. Is this truly a side effect that requires synchronization?
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65 changes: 13 additions & 52 deletions src/app/api/explain/commit/route.ts
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Expand Up @@ -3,79 +3,40 @@ import { repositories, commits } from '@/db';
import { eq, and, sql } from 'drizzle-orm';
import { fetchCommitDiff } from '@/services/github';
import { explainCommit } from '@/services/explain';
import { explainRequestSchema } from '@/lib/validation';
import { explainCommitSchema } from '@/lib/validation';
import { logger } from '@/lib/logger';
import { RATE_LIMITS } from '@/lib/constants';
import { analytics } from '@/lib/analytics';
import { getDb } from '@/db';
import {
applyPrivateNoStoreHeaders,
enforceCsrfProtection,
enforceRateLimit,
resolveSession,
} from '@/lib/api-security';
import { hasRepoAccess } from '@/services/resource-access';
import { getClientIdFromHeaders, resolveAvailableFilePathsForCommit, resolveProviderConfigFromRequest } from '../utils';
import { applyPrivateNoStoreHeaders, guardRoute, getClientIdFromHeaders } from '@/lib/api-security';
import { ensureRepoAccess } from '@/services/resource-access';
import { resolveAvailableFilePathsForCommit, resolveProviderConfigFromRequest } from '../utils';

export async function POST(request: NextRequest) {
const requestLogger = logger.child({ endpoint: 'POST /api/explain/commit' });
const startTime = Date.now();
requestLogger.debug({ method: request.method, url: request.url }, 'Request received');

try {
const csrfError = enforceCsrfProtection(request);
if (csrfError) {
requestLogger.warn('CSRF validation failed');
return csrfError;
}

const session = await resolveSession(request);
if (!session) {
requestLogger.warn('Session not found');
return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
}

const rateLimitError = await enforceRateLimit(request, {
keyPrefix: 'api:explain:commit',
limit: RATE_LIMITS.EXPLAIN_API,
sessionId: session.sessionId,
const guard = await guardRoute(request, {
rateLimit: { keyPrefix: 'api:explain:commit', limit: RATE_LIMITS.EXPLAIN_API },
analytics: { endpoint: '/api/explain/commit' },
});
if (rateLimitError) {
const clientId = getClientIdFromHeaders(request);
requestLogger.warn({ clientId }, 'Rate limit exceeded');
await analytics.trackRateLimit({ endpoint: '/api/explain/commit', clientId, blocked: true });
return rateLimitError.response;
}

const clientId = getClientIdFromHeaders(request);
await analytics.trackRateLimit({ endpoint: '/api/explain/commit', clientId, blocked: false });
if (!guard.ok) return guard.response;
const { session, clientId } = guard;

const db = getDb();
const rawBody = await request.json().catch(() => null);
const parseResult = explainRequestSchema.safeParse(rawBody);
const parseResult = explainCommitSchema.safeParse(rawBody);

if (!parseResult.success) {
return NextResponse.json({ error: 'Validation failed', details: parseResult.error.issues }, { status: 400 });
}

const { repoId, commitSha, provider, providerType, model, baseUrl, visibleFiles } = parseResult.data;
const { repoId, commitSha, provider, visibleFiles } = parseResult.data;

if (parseResult.data.type !== 'commit' || !commitSha) {
return NextResponse.json({ error: 'Invalid request wrapper for commit' }, { status: 400 });
}

const repoAccess = await hasRepoAccess(repoId, session.sessionId);
if (!repoAccess) {
requestLogger.warn({ repoId, sessionId: session.sessionId }, 'Repository access denied for explain');
return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
}
await ensureRepoAccess(repoId, session.sessionId, requestLogger);

const providerConfig = await resolveProviderConfigFromRequest(request, {
provider,
providerType,
baseUrl,
model,
}, session.sessionId);
const providerConfig = await resolveProviderConfigFromRequest(request, provider, session.sessionId);

const repo = await db.select().from(repositories).where(eq(repositories.id, repoId)).limit(1);
if (repo.length === 0) return NextResponse.json({ error: 'Repository not found' }, { status: 404 });
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61 changes: 13 additions & 48 deletions src/app/api/explain/day-summary/route.ts
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@@ -1,71 +1,36 @@
import { NextRequest, NextResponse } from 'next/server';
import { explainRequestSchema } from '@/lib/validation';
import { explainDaySummarySchema } from '@/lib/validation';
import { logger } from '@/lib/logger';
import { RATE_LIMITS, AI_CONSTANTS } from '@/lib/constants';
import { analytics } from '@/lib/analytics';
import {
applyPrivateNoStoreHeaders,
enforceCsrfProtection,
enforceRateLimit,
resolveSession,
} from '@/lib/api-security';
import { hasRepoAccess } from '@/services/resource-access';
import { getClientIdFromHeaders, resolveProviderConfigFromRequest } from '../utils';
import { applyPrivateNoStoreHeaders, guardRoute, getClientIdFromHeaders } from '@/lib/api-security';
import { ensureRepoAccess } from '@/services/resource-access';
import { resolveProviderConfigFromRequest } from '../utils';

export async function POST(request: NextRequest) {
const requestLogger = logger.child({ endpoint: 'POST /api/explain/day-summary' });
const startTime = Date.now();

try {
const csrfError = enforceCsrfProtection(request);
if (csrfError) {
return csrfError;
}

const session = await resolveSession(request);
if (!session) {
return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
}

const rateLimitError = await enforceRateLimit(request, {
keyPrefix: 'api:explain:day-summary',
limit: RATE_LIMITS.EXPLAIN_API,
sessionId: session.sessionId,
const guard = await guardRoute(request, {
rateLimit: { keyPrefix: 'api:explain:day-summary', limit: RATE_LIMITS.EXPLAIN_API },
analytics: { endpoint: '/api/explain/day-summary' },
});
if (rateLimitError) {
const clientId = getClientIdFromHeaders(request);
requestLogger.warn({ clientId }, 'Rate limit exceeded');
await analytics.trackRateLimit({ endpoint: '/api/explain/day-summary', clientId, blocked: true });
return rateLimitError.response;
}

const clientId = getClientIdFromHeaders(request);
await analytics.trackRateLimit({ endpoint: '/api/explain/day-summary', clientId, blocked: false });
if (!guard.ok) return guard.response;
const { session, clientId } = guard;

const rawBody = await request.json().catch(() => null);
const parseResult = explainRequestSchema.safeParse(rawBody);
const parseResult = explainDaySummarySchema.safeParse(rawBody);

if (!parseResult.success) {
return NextResponse.json({ error: 'Validation failed', details: parseResult.error.issues }, { status: 400 });
}

const { repoId, commits: dayCommits, projectName, projectOwner, provider, providerType, model, baseUrl } = parseResult.data;
const { repoId, commits: dayCommits, projectName, projectOwner, provider } = parseResult.data;

if (parseResult.data.type !== 'day-summary' || !dayCommits || dayCommits.length === 0) {
return NextResponse.json({ error: 'Invalid request wrapper for day-summary' }, { status: 400 });
}

const repoAccess = await hasRepoAccess(repoId, session.sessionId);
if (!repoAccess) {
return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
}
await ensureRepoAccess(repoId, session.sessionId, requestLogger);

const providerConfig = await resolveProviderConfigFromRequest(request, {
provider,
providerType,
baseUrl,
model,
}, session.sessionId);
const providerConfig = await resolveProviderConfigFromRequest(request, provider, session.sessionId);

const { streamText } = await import('ai');
const { createAIProviderAsync } = await import('@/services/ai-providers');
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61 changes: 13 additions & 48 deletions src/app/api/explain/project/route.ts
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Expand Up @@ -2,75 +2,40 @@ import { NextRequest, NextResponse } from 'next/server';
import { repositories, commits } from '@/db';
import { eq, sql } from 'drizzle-orm';
import { explainProject } from '@/services/explain';
import { explainRequestSchema } from '@/lib/validation';
import { explainProjectSchema } from '@/lib/validation';
import { logger } from '@/lib/logger';
import { RATE_LIMITS } from '@/lib/constants';
import { analytics } from '@/lib/analytics';
import { getDb } from '@/db';
import {
applyPrivateNoStoreHeaders,
enforceCsrfProtection,
enforceRateLimit,
resolveSession,
} from '@/lib/api-security';
import { hasRepoAccess } from '@/services/resource-access';
import { getClientIdFromHeaders, resolveProviderConfigFromRequest } from '../utils';
import { applyPrivateNoStoreHeaders, guardRoute, getClientIdFromHeaders } from '@/lib/api-security';
import { ensureRepoAccess } from '@/services/resource-access';
import { resolveProviderConfigFromRequest } from '../utils';

export async function POST(request: NextRequest) {
const requestLogger = logger.child({ endpoint: 'POST /api/explain/project' });
const startTime = Date.now();

try {
const csrfError = enforceCsrfProtection(request);
if (csrfError) {
return csrfError;
}

const session = await resolveSession(request);
if (!session) {
return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
}

const rateLimitError = await enforceRateLimit(request, {
keyPrefix: 'api:explain:project',
limit: RATE_LIMITS.EXPLAIN_API,
sessionId: session.sessionId,
const guard = await guardRoute(request, {
rateLimit: { keyPrefix: 'api:explain:project', limit: RATE_LIMITS.EXPLAIN_API },
analytics: { endpoint: '/api/explain/project' },
});
if (rateLimitError) {
const clientId = getClientIdFromHeaders(request);
requestLogger.warn({ clientId }, 'Rate limit exceeded');
await analytics.trackRateLimit({ endpoint: '/api/explain/project', clientId, blocked: true });
return rateLimitError.response;
}

const clientId = getClientIdFromHeaders(request);
await analytics.trackRateLimit({ endpoint: '/api/explain/project', clientId, blocked: false });
if (!guard.ok) return guard.response;
const { session, clientId } = guard;

const db = getDb();
const rawBody = await request.json().catch(() => null);
const parseResult = explainRequestSchema.safeParse(rawBody);
const parseResult = explainProjectSchema.safeParse(rawBody);

if (!parseResult.success) {
return NextResponse.json({ error: 'Validation failed', details: parseResult.error.issues }, { status: 400 });
}

const { repoId, provider, providerType, model, baseUrl } = parseResult.data;
const { repoId, provider } = parseResult.data;

if (parseResult.data.type !== 'project') {
return NextResponse.json({ error: 'Invalid request wrapper for project' }, { status: 400 });
}

const repoAccess = await hasRepoAccess(repoId, session.sessionId);
if (!repoAccess) {
return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
}
await ensureRepoAccess(repoId, session.sessionId, requestLogger);

const providerConfig = await resolveProviderConfigFromRequest(request, {
provider,
providerType,
baseUrl,
model,
}, session.sessionId);
const providerConfig = await resolveProviderConfigFromRequest(request, provider, session.sessionId);

const repo = await db.select().from(repositories).where(eq(repositories.id, repoId)).limit(1);
if (repo.length === 0) return NextResponse.json({ error: 'Repository not found' }, { status: 404 });
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61 changes: 13 additions & 48 deletions src/app/api/explain/question/route.ts
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Expand Up @@ -2,75 +2,40 @@ import { NextRequest, NextResponse } from 'next/server';
import { repositories, commits } from '@/db';
import { eq, and, sql } from 'drizzle-orm';
import { answerQuestion } from '@/services/explain';
import { explainRequestSchema } from '@/lib/validation';
import { explainQuestionSchema } from '@/lib/validation';
import { logger } from '@/lib/logger';
import { RATE_LIMITS } from '@/lib/constants';
import { analytics } from '@/lib/analytics';
import { getDb } from '@/db';
import {
applyPrivateNoStoreHeaders,
enforceCsrfProtection,
enforceRateLimit,
resolveSession,
} from '@/lib/api-security';
import { hasRepoAccess } from '@/services/resource-access';
import { getClientIdFromHeaders, resolveAvailableFilePathsForCommit, resolveProviderConfigFromRequest } from '../utils';
import { applyPrivateNoStoreHeaders, guardRoute, getClientIdFromHeaders } from '@/lib/api-security';
import { ensureRepoAccess } from '@/services/resource-access';
import { resolveAvailableFilePathsForCommit, resolveProviderConfigFromRequest } from '../utils';

export async function POST(request: NextRequest) {
const requestLogger = logger.child({ endpoint: 'POST /api/explain/question' });
const startTime = Date.now();

try {
const csrfError = enforceCsrfProtection(request);
if (csrfError) {
return csrfError;
}

const session = await resolveSession(request);
if (!session) {
return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
}

const rateLimitError = await enforceRateLimit(request, {
keyPrefix: 'api:explain:question',
limit: RATE_LIMITS.EXPLAIN_API,
sessionId: session.sessionId,
const guard = await guardRoute(request, {
rateLimit: { keyPrefix: 'api:explain:question', limit: RATE_LIMITS.EXPLAIN_API },
analytics: { endpoint: '/api/explain/question' },
});
if (rateLimitError) {
const clientId = getClientIdFromHeaders(request);
requestLogger.warn({ clientId }, 'Rate limit exceeded');
await analytics.trackRateLimit({ endpoint: '/api/explain/question', clientId, blocked: true });
return rateLimitError.response;
}

const clientId = getClientIdFromHeaders(request);
await analytics.trackRateLimit({ endpoint: '/api/explain/question', clientId, blocked: false });
if (!guard.ok) return guard.response;
const { session, clientId } = guard;

const db = getDb();
const rawBody = await request.json().catch(() => null);
const parseResult = explainRequestSchema.safeParse(rawBody);
const parseResult = explainQuestionSchema.safeParse(rawBody);

if (!parseResult.success) {
return NextResponse.json({ error: 'Validation failed', details: parseResult.error.issues }, { status: 400 });
}

const { repoId, commitSha, question, provider, providerType, model, baseUrl, visibleFiles } = parseResult.data;
const { repoId, commitSha, question, provider, visibleFiles } = parseResult.data;

if (parseResult.data.type !== 'question' || !question) {
return NextResponse.json({ error: 'Invalid request wrapper for question' }, { status: 400 });
}

const repoAccess = await hasRepoAccess(repoId, session.sessionId);
if (!repoAccess) {
return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
}
await ensureRepoAccess(repoId, session.sessionId, requestLogger);

const providerConfig = await resolveProviderConfigFromRequest(request, {
provider,
providerType,
baseUrl,
model,
}, session.sessionId);
const providerConfig = await resolveProviderConfigFromRequest(request, provider, session.sessionId);

const repo = await db.select().from(repositories).where(eq(repositories.id, repoId)).limit(1);
if (repo.length === 0) return NextResponse.json({ error: 'Repository not found' }, { status: 404 });
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