/**
 * earth-now.co
 * Author:  Simon-Pierre Boucher
 * Contact: contact@spboucher.ai
 * File:    packages/models/src/index.ts
 * Purpose: Public entrypoint of the pure statistical layer (fitters, filters, validation)
 */

export { leastSquares, solveLinearSystem } from "./linalg.js";
export { type FourierFitInput, type FourierFitResult, fitFourier } from "./fourier.js";
export { type HoltWintersFit, type HoltWintersParams, fitHoltWinters } from "./holt-winters.js";
export { type KalmanOptions, type KalmanStep, blendWithForecast, kalmanFilter } from "./kalman.js";
export {
  type MetricConstraints,
  type ValidationHorizon,
  type ValidationIssue,
  assertDeployable,
  diffModels,
  validateModel,
} from "./validate.js";
export {
  type SeasonalShape,
  type TimeValuePoint,
  MODEL_VERSIONS,
  annualTotalToMeanRate,
  buildKeelingModel,
  buildLinearStockModel,
  buildLinearYtdModel,
  buildSeasonalYtdModel,
  buildStaticRtModel,
  buildStockSplineModel,
  composeLinearCombination,
  secondsInUtcYear,
} from "./builders.js";