import type { ObjectInfo, TreeNode } from "@/types/database";
import { buildGroupedObjectTreeNodes, buildSimpleObjectTreeNodes } from "@/lib/tableTree";

export const SQLSERVER_DEFAULT_SCHEMA = "dbo";

function isDefaultSchema(schema: string): boolean {
  return schema.toLowerCase() === SQLSERVER_DEFAULT_SCHEMA;
}

export function buildSqlServerDatabaseTreeNodes(
  connectionId: string,
  database: string,
  schemas: string[],
  defaultSchemaObjects: ObjectInfo[],
  options: { simpleObjectDisplay?: boolean } = {},
): TreeNode[] {
  const databaseNodeId = `${connectionId}:${database}`;
  const defaultSchema = schemas.find(isDefaultSchema) || SQLSERVER_DEFAULT_SCHEMA;

  const defaultObjectNodes = options.simpleObjectDisplay
    ? buildSimpleObjectTreeNodes({
        nodeId: databaseNodeId,
        connectionId,
        database,
        schema: defaultSchema,
        objects: defaultSchemaObjects,
      })
    : buildGroupedObjectTreeNodes({
        nodeId: databaseNodeId,
        connectionId,
        database,
        schema: defaultSchema,
        objects: defaultSchemaObjects,
      });

  const schemaNodes = schemas
    .filter((schema) => !isDefaultSchema(schema))
    .map((schema) => ({
      id: `${databaseNodeId}:${schema}`,
      label: schema,
      type: "schema" as const,
      connectionId,
      database,
      schema,
      isExpanded: false,
      children: [],
    }));

  return [...defaultObjectNodes, ...schemaNodes];
}