import type { ExportMaskPolicy } from "../../constants/export";

type ExportManifestStats = {
  dataRows: number;
  files: number;
  bytes: number;
};

export type ExportManifest = {
  schemaVersion: number;
  exportedAt: string;
  exportCutoffAt: string;
  userId: number;
  maskPolicy: ExportMaskPolicy;
  stats: ExportManifestStats;
  checksums: {
    data: Array<{ file: string; sha256: string }>;
    files: Array<{ file: string; sha256: string }>;
  };
};

export function buildExportManifest(params: {
  schemaVersion: number;
  userId: number;
  maskPolicy: ExportMaskPolicy;
  exportedAt: Date;
  exportCutoffAt: Date;
  stats: ExportManifestStats;
  dataChecksums: Array<{ file: string; sha256: string }>;
  fileChecksums: Array<{ file: string; sha256: string }>;
}): ExportManifest {
  return {
    schemaVersion: params.schemaVersion,
    exportedAt: params.exportedAt.toISOString(),
    exportCutoffAt: params.exportCutoffAt.toISOString(),
    userId: params.userId,
    maskPolicy: params.maskPolicy,
    stats: params.stats,
    checksums: {
      data: params.dataChecksums,
      files: params.fileChecksums,
    },
  };
}