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Akshat-Neeraj wants to merge 4 commits into from
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Add per-repo language breakdown badges in TopRepos #294

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b7484e4
Add language breakdown badges to TopRepos
Akshat-Neeraj May 17, 2026
e5550f2
Remove accidental inspector import
Akshat-Neeraj May 19, 2026
4e6fdfd
fix review comments
Akshat-Neeraj May 21, 2026
83ae1ac
Merge branch 'main' into feature-language-breakdown
Akshat-Neeraj May 21, 2026
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304 changes: 202 additions & 102 deletions src/app/api/metrics/repos/route.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -18,31 +18,67 @@ import { resolveAppUser } from "@/lib/resolve-user";

export const dynamic = "force-dynamic";

interface RepoLanguage {
name: string;
percentage: number;
}

interface RepoSummary {
name: string;
commits: number;
description: string | null;
languages?: RepoLanguage[];
}

interface RepoResponse {
repos: RepoSummary[];
days: number;
}

function mergeRepoCommits(
a: Array<{ name: string; commits: number; description: string | null }>,
b: Array<{ name: string; commits: number; description: string | null }>
): Array<{ name: string; commits: number; description: string | null }> {
const map = new Map<string, { commits: number; description: string | null }>();
a: Array<{
name: string;
commits: number;
description: string | null;
languages?: RepoLanguage[];
}>,
b: Array<{
name: string;
commits: number;
description: string | null;
languages?: RepoLanguage[];
}>
): Array<{
name: string;
commits: number;
description: string | null;
languages?: RepoLanguage[];
}> {
const map = new Map<
string,
{
commits: number;
description: string | null;
languages?: RepoLanguage[];
}
>();

for (const repo of [...a, ...b]) {
const existing = map.get(repo.name);

map.set(repo.name, {
commits: (existing?.commits ?? 0) + repo.commits,
description: existing?.description ?? repo.description,
languages: existing?.languages ?? repo.languages,
});
}

return Array.from(map.entries())
.map(([name, { commits, description }]) => ({ name, commits, description }))
.map(([name, { commits, description, languages }]) => ({
name,
commits,
description,
languages,
}))
.sort((x, y) => y.commits - x.commits);
}

Expand Down Expand Up @@ -85,137 +121,201 @@ async function fetchReposForAccount(

const data = (await searchRes.json()) as {
items: Array<{
repository: { full_name: string; html_url: string; description: string | null };
repository: {
full_name: string;
html_url: string;
description: string | null;
};
commit: { author: { date: string } };
}>;
};

const repoMap: Record<string, { commits: number; description: string | null }> = {};
const repoMap: Record<
string,
{
commits: number;
description: string | null;
}
> = {};

for (const item of data.items) {
const name = item.repository.full_name;

repoMap[name] = {
commits: (repoMap[name]?.commits ?? 0) + 1,
description: item.repository.description,
};
}

const repos = Object.entries(repoMap)
.map(([name, { commits, description }]) => ({ name, commits, description }))
.sort((a, b) => b.commits - a.commits)
.slice(0, 6);
const repos = await Promise.all(
Object.entries(repoMap).map(async ([name, { commits, description }]) => {
const languageRes = await fetch(
`https://api.github.com/repos/${name}/languages`,
{
headers: {
Authorization: `Bearer ${token}`,
},
}
);

let languages: RepoLanguage[] = [];

if (languageRes.ok) {
const languageData = await languageRes.json();

return { repos, days };
const totalBytes = Object.values(languageData).reduce(
(sum: number, bytes: any) => sum + Number(bytes),
0
);

languages = Object.entries(languageData)
.map(([lang, bytes]) => ({
name: lang,
percentage: Math.round((Number(bytes) / totalBytes) * 100),
}))
.sort((a, b) => b.percentage - a.percentage)
.slice(0, 3);
}

return {
name,
commits,
description,
languages,
};
})
);

repos.sort((a, b) => b.commits - a.commits);

const topRepos = repos.slice(0, 6);

return { repos: topRepos, days };
}
);
}

export async function GET(req: NextRequest) {
const session = await getServerSession(authOptions);
if (!session?.accessToken || !session.githubLogin) {
return Response.json({ error: "Unauthorized" }, { status: 401 });
}
const session = await getServerSession(authOptions);
if (!session?.accessToken || !session.githubLogin) {
return Response.json({ error: "Unauthorized" }, { status: 401 });
}

const daysParam = req.nextUrl.searchParams.get("days");
const parsedDays = daysParam ? parseInt(daysParam, 10) : NaN;
const days = isNaN(parsedDays) ? 30 : Math.max(1, Math.min(365, parsedDays));
const accountId = req.nextUrl.searchParams.get("accountId");
const bypass = isMetricsCacheBypassed(req);
const days = Number(req.nextUrl.searchParams.get("days")) || 30;
const accountId = req.nextUrl.searchParams.get("accountId");

if (!accountId) {
try {
const result = await fetchReposForAccount(
session.accessToken,
session.githubLogin,
days,
{ bypass, userId: session.githubId ?? session.githubLogin }
);
return Response.json(result);
} catch {
return Response.json({ error: "GitHub API error" }, { status: 502 });
}
if (!accountId) {
try {
const result = await fetchReposForAccount(
session.accessToken,
session.githubLogin,
days,
{
bypass: false,
userId: session.githubId ?? session.githubLogin,
}
);
return Response.json(result);
} catch {
return Response.json({ error: "GitHub API error" }, { status: 502 });
}
}

if (!session.githubId) {
return Response.json({ error: "Unauthorized" }, { status: 401 });
}
if (!session.githubId) {
return Response.json({ error: "Unauthorized" }, { status: 401 });
}

const userRow = await resolveAppUser(session.githubId, session.githubLogin);
const { data: userRow } = await supabaseAdmin
.from("users")
.select("id")
.eq("github_id", session.githubId)
.single();

if (!userRow) {
return Response.json({ error: "Unauthorized" }, { status: 401 });
}
if (!userRow) {
return Response.json({ error: "Unauthorized" }, { status: 401 });
}

if (accountId === "combined") {
const accounts = await getAllAccounts(
{
token: session.accessToken,
githubId: session.githubId,
githubLogin: session.githubLogin,
},
userRow.id
);

if (accountId === "combined") {
const accounts = await getAllAccounts(
const results = await Promise.allSettled(
accounts.map((account) =>
fetchReposForAccount(
account.token,
account.githubLogin,
days,
{
token: session.accessToken,
githubId: session.githubId,
githubLogin: session.githubLogin,
},
userRow.id
);

const results = await Promise.allSettled(
accounts.map((account) =>
fetchReposForAccount(account.token, account.githubLogin, days, {
bypass,
userId: account.githubId,
})
)
);
bypass: false,
userId: account.githubId,
}
)
)
);

const merged = mergeMetrics(results, (a, b) => ({
days: a.days,
repos: mergeRepoCommits(a.repos, b.repos),
}));
const merged = mergeMetrics(results, (a, b) => ({
days: a.days,
repos: mergeRepoCommits(a.repos, b.repos),
}));

if (!merged) {
return Response.json({ error: "GitHub API error" }, { status: 502 });
if (!merged) {
return Response.json({ error: "GitHub API error" }, { status: 502 });
}

return Response.json(merged);
}

return Response.json(merged);
if (accountId === session.githubId) {
try {
const result = await fetchReposForAccount(
session.accessToken,
session.githubLogin,
days,
{
bypass: false,
userId: session.githubId ?? session.githubLogin,
}
);
return Response.json(result);
} catch {
return Response.json({ error: "GitHub API error" }, { status: 502 });
}
}

const accountToken = await getAccountToken(userRow.id, accountId);

if (!accountToken) {
return Response.json({ error: "Account not found" }, { status: 404 });
}

const { data: accountRow } = await supabaseAdmin
.from("user_github_accounts")
.select("github_login")
.eq("user_id", userRow.id)
.eq("github_id", accountId)
.single();

if (!accountRow?.github_login) {
return Response.json({ error: "Account not found" }, { status: 404 });
}

if (accountId === session.githubId) {
try {
const result = await fetchReposForAccount(
session.accessToken,
session.githubLogin,
days,
{ bypass, userId: session.githubId }
);
accountToken,
accountRow.github_login,
days,
{
bypass: false,
userId: accountId,
}
)
return Response.json(result);
} catch {
return Response.json({ error: "GitHub API error" }, { status: 502 });
}
}

const accountToken = await getAccountToken(userRow.id, accountId);

if (!accountToken) {
return Response.json({ error: "Account not found" }, { status: 404 });
}

const { data: accountRow } = await supabaseAdmin
.from("user_github_accounts")
.select("github_login")
.eq("user_id", userRow.id)
.eq("github_id", accountId)
.single();

if (!accountRow?.github_login) {
return Response.json({ error: "Account not found" }, { status: 404 });
}

try {
const result = await fetchReposForAccount(
accountToken,
accountRow.github_login,
days,
{ bypass, userId: accountId }
);
return Response.json(result);
} catch {
return Response.json({ error: "GitHub API error" }, { status: 502 });
}
}
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