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import type { ActionFunctionArgs } from "react-router";
import {
createArtist,
createBand,
getArtistBySlug,
getBandBySlug,
getIpAddress,
toSlug,
type MemberInput,
} from "~/lib/db.server";
interface LinkInput {
label: string;
url: string;
}
interface ArtistImport {
name: string;
links?: LinkInput[];
}
interface MemberImport {
name: string;
role?: string | null;
since?: string;
until?: string;
note?: string;
}
interface BandImport {
name: string;
slug?: string;
area?: string | null;
description?: string | null;
status?: string;
links?: LinkInput[];
members?: MemberImport[];
message?: string;
}
interface ImportPayload {
artists?: ArtistImport[];
bands: BandImport[];
}
export async function action({ request }: ActionFunctionArgs) {
if (request.method !== "POST") {
return Response.json({ error: "Method not allowed" }, { status: 405 });
}
let payload: ImportPayload;
try {
payload = await request.json();
} catch {
return Response.json({ error: "Invalid JSON body" }, { status: 400 });
}
if (!payload || !Array.isArray(payload.bands) || payload.bands.length === 0) {
return Response.json({ error: "`bands` must be a non-empty array" }, { status: 400 });
}
const ip = getIpAddress(request);
const artistIdByName = new Map<string, string>();
const artistsCreated: { id: string; name: string }[] = [];
const artistsReused: { id: string; name: string }[] = [];
const bandsCreated: { id: string; name: string; slug: string }[] = [];
const bandsSkipped: { name: string; reason: string }[] = [];
const errors: string[] = [];
// resolves (creating if necessary) an artist by name; reuses an existing
// artist when its derived slug already exists so re-running an import is idempotent
function resolveArtist(name: string, links: LinkInput[] = []): string | null {
const cached = artistIdByName.get(name);
if (cached) return cached;
const baseSlug = toSlug(name);
const existing = baseSlug ? getArtistBySlug(baseSlug) : null;
if (existing) {
artistIdByName.set(name, existing.id);
artistsReused.push({ id: existing.id, name: existing.name });
return existing.id;
}
const fallbackBase = baseSlug || crypto.randomUUID().slice(0, 8);
for (let attempt = 0; attempt < 3; attempt++) {
const id = crypto.randomUUID();
const slug = attempt === 0 ? fallbackBase : `${fallbackBase}-${id.slice(0, 6)}`;
try {
createArtist({ id, slug, name, links, message: "JSONインポートで自動作成", ip_address: ip });
artistIdByName.set(name, id);
artistsCreated.push({ id, name });
return id;
} catch (e) {
if (e instanceof Error && e.message.includes("UNIQUE constraint failed")) continue;
errors.push(`アーティスト「${name}」の作成に失敗: ${e instanceof Error ? e.message : "不明なエラー"}`);
return null;
}
}
errors.push(`アーティスト「${name}」の作成に失敗: slugの衝突が解消しませんでした`);
return null;
}
for (const a of payload.artists ?? []) {
if (a?.name) resolveArtist(a.name, a.links ?? []);
}
for (const b of payload.bands) {
if (!b?.name) {
errors.push("バンド名が空のエントリをスキップしました");
continue;
}
const baseSlug = b.slug ? toSlug(b.slug) : toSlug(b.name);
if (baseSlug && getBandBySlug(baseSlug)) {
bandsSkipped.push({ name: b.name, reason: `slug "${baseSlug}" は既に使用されています` });
continue;
}
const members: MemberInput[] = [];
for (const m of b.members ?? []) {
if (!m?.name) continue;
const artistId = resolveArtist(m.name);
if (!artistId) continue;
members.push({
artist_id: artistId,
role: m.role ?? null,
since: m.since ?? "",
until: m.until ?? "",
note: m.note ?? "",
});
}
const fallbackBase = baseSlug || crypto.randomUUID().slice(0, 8);
let stop = false;
for (let attempt = 0; attempt < 3 && !stop; attempt++) {
const id = crypto.randomUUID();
const slug = attempt === 0 ? fallbackBase : `${fallbackBase}-${id.slice(0, 6)}`;
try {
createBand({
id,
slug,
name: b.name,
area: b.area ?? null,
description: b.description ?? null,
status: b.status ?? "active",
links: b.links ?? [],
members,
message: b.message ?? "JSONインポートで自動登録",
ip_address: ip,
});
bandsCreated.push({ id, name: b.name, slug });
stop = true;
} catch (e) {
if (e instanceof Error && e.message.includes("UNIQUE constraint failed")) continue;
errors.push(`バンド「${b.name}」の作成に失敗: ${e instanceof Error ? e.message : "不明なエラー"}`);
stop = true;
}
}
}
return Response.json({
ok: errors.length === 0,
artistsCreated,
artistsReused,
bandsCreated,
bandsSkipped,
errors,
});
}
export default function () {
return null;
}
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