feat: 项目初始化

server/utils/db.ts

@@ -0,0 +1,38 @@
+import { PrismaMariaDb } from "@prisma/adapter-mariadb";
+import { PrismaClient } from "../../prisma/generated/client";
+
+const createMariaDbConfig = () => {
+  const databaseUrl = process.env.DATABASE_URL;
+
+  if (!databaseUrl) {
+    throw new Error("DATABASE_URL is not set.");
+  }
+
+  const url = new URL(databaseUrl);
+
+  return {
+    host: url.hostname,
+    port: Number(url.port || 3306),
+    user: decodeURIComponent(url.username),
+    password: decodeURIComponent(url.password),
+    database: decodeURIComponent(url.pathname.slice(1)),
+    connectionLimit: 5,
+    connectTimeout: 15_000,
+    acquireTimeout: 20_000,
+  };
+};
+
+const prismaClientSingleton = () => {
+  const adapter = new PrismaMariaDb(createMariaDbConfig());
+  return new PrismaClient({ adapter });
+};
+
+type PrismaClientSingleton = ReturnType<typeof prismaClientSingleton>;
+
+const globalForPrisma = globalThis as unknown as {
+  prisma: PrismaClientSingleton | undefined;
+};
+
+export const prisma = globalForPrisma.prisma ?? prismaClientSingleton();
+
+if (process.env.NODE_ENV !== "production") globalForPrisma.prisma = prisma;