import { sql } from "drizzle-orm"
import type { db } from "../../db/index.js"
import type { CollectorRead } from "./signals-from-collectors.js"

/** Bind internal collector SELECTs to the caller's read-only transaction, including all values. */
export function createCollectorContextReader(context: Pick<typeof db, "execute">): CollectorRead {
  return async <T extends object>(query: string, params: unknown[] = []): Promise<T[]> => {
    const parts = query.split("?")
    if (parts.length !== params.length + 1) throw Error("Неверные параметры запроса источников оповещений")
    const statement = sql.empty()
    for (let index = 0; index < parts.length; index++) {
      statement.append(sql.raw(parts[index]))
      if (index < params.length) statement.append(sql`${params[index]}`)
    }
    const result = await context.execute(statement)
    return result.rows as T[]
  }
}