import type { SeasonSegmentKey } from '../../season/season-types';
import { childScope, intIn, makeParser } from './parse-helpers';
import type { InspectionIntervalConfig } from './rule-config.types';

type IntervalSegment = Exclude<SeasonSegmentKey, 'WINTERRUHE'>;

const MIN_INTERVAL_DAYS = 7;
const MAX_INTERVAL_DAYS = 35;
/** In the swarm season a colony is looked at weekly, at the latest every 9 days. */
const MAX_SWARM_INTERVAL_DAYS = 9;

export const DEFAULT_INSPECTION_INTERVAL_CONFIG: InspectionIntervalConfig = {
  intervalDays: {
    FRUEHJAHR: 14,
    SCHWARMZEIT: 7,
    SOMMER: 14,
    SPAETSOMMER: 21,
    HERBST: 21,
  },
};

const SEGMENTS = Object.keys(
  DEFAULT_INSPECTION_INTERVAL_CONFIG.intervalDays,
) as IntervalSegment[];

export const inspectionIntervalParser = makeParser<InspectionIntervalConfig>(
  'INSPECTION_INTERVAL',
  DEFAULT_INSPECTION_INTERVAL_CONFIG,
  (scope) => {
    const days = childScope(scope, 'intervalDays');
    const defaults = DEFAULT_INSPECTION_INTERVAL_CONFIG.intervalDays;
    const intervalDays = { ...defaults };
    for (const segment of SEGMENTS) {
      intervalDays[segment] = intIn(
        days,
        segment,
        defaults[segment],
        MIN_INTERVAL_DAYS,
        segment === 'SCHWARMZEIT' ? MAX_SWARM_INTERVAL_DAYS : MAX_INTERVAL_DAYS,
      );
    }
    return { intervalDays };
  },
);