candidatePriorEstimate.ts

Filename	Percent	Threshold	Total	Covered	Uncovered
src/events/parsers/election-race/candidatePriorEstimate.ts	100.00%	80%	52	52	0

import type { Document } from './types.js';
import type { NewCandidatePriorEstimate } from 'db/schema/candidatePriorEstimate.js';
import { parseKey } from 'utils/documentKey.js';

/**
 * Parses documents we get from querying the `events/election-race` endpoint. It then transforms the data to fit the structure of the CandidatePriorEstimate model and returns an array of objects that can be upserted into the model.
 *
 * The returned array contains data about prior vote estaimtes based on pre-election surveys for each candidate.
 */
export const parseCandidatePriorEstimates = (documents: Document[]) => {
  const instances: NewCandidatePriorEstimate[] = [];
  for (const doc of documents) {
    const { jurisdiction, office, officeRace } = parseKey(doc.key);

    for (const cand of doc.cand) {
      const { cId: candidate, priorEstimate } = cand;

      if (!priorEstimate) continue;

      const candidateRace = `${officeRace}_${candidate}`;

      const instance: NewCandidatePriorEstimate = {
        uid: candidateRace,
        candidate,
        candidateRace,
        jurisdiction,
        office,
        officeRace,
        value: priorEstimate.estimate,
        stdErrDiff: priorEstimate.sedf,
        stdErr: priorEstimate.stdError,
        wpe: priorEstimate.wpe,
      };
      instances.push(instance);
    }
  }
  return instances;
};

[]

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