import semver from 'semver';
import stable from 'semver-stable';
import type { RangeStrategy } from '../../../types/versioning.ts';
import { regEx } from '../../../util/regex.ts';
import type { VersioningApi } from '../types.ts';
import { getNewValue, toSemverRange } from './range.ts';

export const id = 'swift';
export const displayName = 'Swift';
export const urls = [
  '[Swift Package Manager](https://swift.org/package-manager/)',
];
export const supportsRanges = true;
export const supportedRangeStrategies: RangeStrategy[] = [
  'bump',
  'widen',
  'replace',
];

const { is: isStable } = stable;

const {
  compare: sortVersions,
  maxSatisfying,
  minSatisfying,
  major: getMajor,
  minor: getMinor,
  patch: getPatch,
  satisfies,
  valid,
  validRange,
  ltr,
  gt: isGreaterThan,
  eq: equals,
} = semver;

export function isValid(input: string): boolean {
  return !!valid(input) || !!validRange(toSemverRange(input));
}

export function isVersion(input: string): boolean {
  return !!valid(input);
}

function getSatisfyingVersion(
  versions: string[],
  range: string,
): string | null {
  const normalizedVersions = versions.map((v) => v.replace(regEx(/^v/), ''));
  const semverRange = toSemverRange(range);
  return semverRange ? maxSatisfying(normalizedVersions, semverRange) : null;
}

function minSatisfyingVersion(
  versions: string[],
  range: string,
): string | null {
  const normalizedVersions = versions.map((v) => v.replace(regEx(/^v/), ''));
  const semverRange = toSemverRange(range);
  return semverRange ? minSatisfying(normalizedVersions, semverRange) : null;
}

function isLessThanRange(version: string, range: string): boolean {
  const semverRange = toSemverRange(range);
  return semverRange ? ltr(version, semverRange) : false;
}

function matches(version: string, range: string): boolean {
  // Check if both are an exact version
  if (isVersion(range) && equals(version, range)) {
    return true;
  }
  const semverRange = toSemverRange(range);
  return semverRange ? satisfies(version, semverRange) : false;
}

export const api: VersioningApi = {
  equals,
  getMajor,
  getMinor,
  getNewValue,
  getPatch,
  isCompatible: isVersion,
  isGreaterThan,
  isLessThanRange,
  isSingleVersion: isVersion,
  isStable,
  isValid,
  isVersion,
  matches,
  getSatisfyingVersion,
  minSatisfyingVersion,
  sortVersions,
};

export default api;