refactor(desktop): organize lib modules by domain

apps/desktop/src/lib/database/createDatabaseSql.ts

@@ -0,0 +1,45 @@
+import type { DatabaseType } from "@/types/database";
+import * as api from "@/lib/backend/api";
+
+const MYSQL_COMPATIBLE_PROFILES = new Set(["mysql", "mariadb", "tidb", "oceanbase", "doris", "starrocks", "custom_mysql"]);
+const MYSQL_COMPATIBLE_TYPES = new Set<DatabaseType>(["mysql", "doris", "starrocks", "goldendb"]);
+
+export interface CreateDatabaseSqlOptions {
+  databaseType?: DatabaseType;
+  driverProfile?: string | null;
+  name: string;
+  charset?: string;
+  collation?: string;
+}
+
+export function supportsCreateDatabaseCharset(databaseType?: DatabaseType, driverProfile?: string | null): boolean {
+  return MYSQL_COMPATIBLE_TYPES.has(databaseType as DatabaseType) || (!!driverProfile && MYSQL_COMPATIBLE_PROFILES.has(driverProfile.toLowerCase()));
+}
+
+export function buildCreateDatabaseSql(options: CreateDatabaseSqlOptions): Promise<string> {
+  return api.buildCreateDatabaseSql(options);
+}
+
+export function buildDuckDbAttachDatabaseSql(path: string, name: string): Promise<string> {
+  return api.buildDuckDbAttachDatabaseSql(path, name);
+}
+
+export function duckDbAttachedDatabaseNameFromPath(path: string): string {
+  const fileName = path.split(/[\\/]/).pop() ?? "";
+  const withoutExtension = fileName.replace(/\.[^.\\/]+$/, "");
+  const normalized = withoutExtension
+    .trim()
+    .replace(/[^\p{L}\p{N}_]+/gu, "_")
+    .replace(/^_+|_+$/g, "");
+  return normalized || "duckdb_database";
+}
+
+export function uniqueDuckDbAttachedDatabaseName(baseName: string, existingNames: string[]): string {
+  const existing = new Set(existingNames.map((name) => name.toLowerCase()));
+  if (!existing.has(baseName.toLowerCase())) return baseName;
+  for (let index = 2; index < Number.MAX_SAFE_INTEGER; index++) {
+    const candidate = `${baseName}_${index}`;
+    if (!existing.has(candidate.toLowerCase())) return candidate;
+  }
+  return `${baseName}_${Date.now()}`;
+}