import type { EnvironmentId, ThreadId } from "@t3tools/contracts";

interface ThreadActivityFileContext {
  readonly environmentId: EnvironmentId;
  readonly currentThreadId: ThreadId;
  readonly activitySourceThreadId: ThreadId;
  readonly relativePath: string;
  readonly line?: number | null;
}

export function buildThreadActivityFileParams(input: ThreadActivityFileContext) {
  // Activity provenance may come from a parent thread, but file routes stay scoped
  // to the thread whose workspace is currently selected.
  return {
    environmentId: String(input.environmentId),
    threadId: String(input.currentThreadId),
    path: input.relativePath.split("/").filter((segment) => segment.length > 0),
    ...(Number.isFinite(input.line) && Number(input.line) > 0
      ? { line: String(Math.floor(Number(input.line))) }
      : {}),
  };
}