// Type definitions for semver 6.0
// Project: https://github.com/npm/node-semver
// Definitions by: Bart van der Schoor <https://github.com/Bartvds>
//                 BendingBender <https://github.com/BendingBender>
//                 Lucian Buzzo <https://github.com/LucianBuzzo>
//                 Klaus Meinhardt <https://github.com/ajafff>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/semver

export const SEMVER_SPEC_VERSION: "2.0.0";

export type ReleaseType = "major" | "premajor" | "minor" | "preminor" | "patch" | "prepatch" | "prerelease";

export interface Options {
    loose?: boolean;
    includePrerelease?: boolean;
}

/**
 * Return the parsed version as a SemVer object, or null if it's not valid.
 */
export function parse(v: string | SemVer, optionsOrLoose?: boolean | Options): SemVer | null;
/**
 * Return the parsed version, or null if it's not valid.
 */
export function valid(v: string | SemVer, optionsOrLoose?: boolean | Options): string | null;
/**
 * Returns cleaned (removed leading/trailing whitespace, remove '=v' prefix) and parsed version, or null if version is invalid.
 */
export function clean(version: string, optionsOrLoose?: boolean | Options): string | null;
/**
 * Return the version incremented by the release type (major, minor, patch, or prerelease), or null if it's not valid.
 */
export function inc(v: string | SemVer, release: ReleaseType, optionsOrLoose?: boolean | Options, identifier?: string): string | null;
/**
 * Return the major version number.
 */
export function major(v: string | SemVer, optionsOrLoose?: boolean | Options): number;
/**
 * Return the minor version number.
 */
export function minor(v: string | SemVer, optionsOrLoose?: boolean | Options): number;
/**
 * Return the patch version number.
 */
export function patch(v: string | SemVer, optionsOrLoose?: boolean | Options): number;
/**
 * Returns an array of prerelease components, or null if none exist.
 */
export function prerelease(v: string | SemVer, optionsOrLoose?: boolean | Options): ReadonlyArray<string> | null;

// Comparison
/**
 * v1 > v2
 */
export function gt(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): boolean;
/**
 * v1 >= v2
 */
export function gte(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): boolean;
/**
 * v1 < v2
 */
export function lt(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): boolean;
/**
 * v1 <= v2
 */
export function lte(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): boolean;
/**
 * v1 == v2 This is true if they're logically equivalent, even if they're not the exact same string. You already know how to compare strings.
 */
export function eq(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): boolean;
/**
 * v1 != v2 The opposite of eq.
 */
export function neq(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): boolean;

/**
 * Pass in a comparison string, and it'll call the corresponding semver comparison function.
 * "===" and "!==" do simple string comparison, but are included for completeness.
 * Throws if an invalid comparison string is provided.
 */
export function cmp(v1: string | SemVer, operator: Operator, v2: string | SemVer, optionsOrLoose?: boolean | Options): boolean;
export type Operator = '===' | '!==' | '' | '=' | '==' | '!=' | '>' | '>=' | '<' | '<=';

/**
 * Return 0 if v1 == v2, or 1 if v1 is greater, or -1 if v2 is greater. Sorts in ascending order if passed to Array.sort().
 */
export function compare(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): 1 | 0 | -1;
/**
 * The reverse of compare. Sorts an array of versions in descending order when passed to Array.sort().
 */
export function rcompare(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): 1 | 0 | -1;

/**
 * Compares two identifiers, must be numeric strings or truthy/falsy values. Sorts in ascending order if passed to Array.sort().
 */
export function compareIdentifiers(a: string | null, b: string | null): 1 | 0 | -1;
/**
 * The reverse of compareIdentifiers. Sorts in descending order when passed to Array.sort().
 */
export function rcompareIdentifiers(a: string | null, b: string | null): 1 | 0 | -1;

/**
 * Sorts an array of semver entries in ascending order.
 */
export function sort<T extends string | SemVer>(list: T[], optionsOrLoose?: boolean | Options): T[];
/**
 * Sorts an array of semver entries in descending order.
 */
export function rsort<T extends string | SemVer>(list: T[], optionsOrLoose?: boolean | Options): T[];

/**
 * Returns difference between two versions by the release type (major, premajor, minor, preminor, patch, prepatch, or prerelease), or null if the versions are the same.
 */
export function diff(v1: string | SemVer, v2: string | SemVer, optionsOrLoose?: boolean | Options): ReleaseType | null;

// Ranges
/**
 * Return the valid range or null if it's not valid
 */
export function validRange(range: string | Range, optionsOrLoose?: boolean | Options): string;
/**
 * Return true if the version satisfies the range.
 */
export function satisfies(version: string | SemVer, range: string | Range, optionsOrLoose?: boolean | Options): boolean;
/**
 * Return the highest version in the list that satisfies the range, or null if none of them do.
 */
export function maxSatisfying<T extends string | SemVer>(versions: ReadonlyArray<T>, range: string | Range, optionsOrLoose?: boolean | Options): T | null;
/**
 * Return the lowest version in the list that satisfies the range, or null if none of them do.
 */
export function minSatisfying<T extends string | SemVer>(versions: ReadonlyArray<T>, range: string | Range, optionsOrLoose?: boolean | Options): T | null;
/**
 * Return the lowest version that can possibly match the given range.
 */
export function minVersion(range: string | Range, optionsOrLoose?: boolean | Options): SemVer | null;
/**
 * Return true if version is greater than all the versions possible in the range.
 */
export function gtr(version: string | SemVer, range: string | Range, optionsOrLoose?: boolean | Options): boolean;
/**
 * Return true if version is less than all the versions possible in the range.
 */
export function ltr(version: string | SemVer, range: string | Range, optionsOrLoose?: boolean | Options): boolean;
/**
 * Return true if the version is outside the bounds of the range in either the high or low direction.
 * The hilo argument must be either the string '>' or '<'. (This is the function called by gtr and ltr.)
 */
export function outside(version: string | SemVer, range: string | Range, hilo: '>' | '<', optionsOrLoose?: boolean | Options): boolean;
/**
 * Return true if any of the ranges comparators intersect
 */
export function intersects(range1: string | Range, range2: string | Range, optionsOrLoose?: boolean | Options): boolean;

// Coercion
/**
 * Coerces a string to semver if possible
 */
export function coerce(version: string | SemVer): SemVer | null;

export class SemVer {
    constructor(version: string | SemVer, optionsOrLoose?: boolean | Options);

    raw: string;
    loose: boolean;
    options: Options;
    format(): string;
    inspect(): string;

    major: number;
    minor: number;
    patch: number;
    version: string;
    build: ReadonlyArray<string>;
    prerelease: ReadonlyArray<string>;

    compare(other: string | SemVer): 1 | 0 | -1;
    compareMain(other: string | SemVer): 1 | 0 | -1;
    comparePre(other: string | SemVer): 1 | 0 | -1;
    inc(release: ReleaseType, identifier?: string): SemVer;
}

export class Comparator {
    constructor(comp: string | Comparator, optionsOrLoose?: boolean | Options);

    semver: SemVer;
    operator: '' | '=' | '<' | '>' | '<=' | '>=';
    value: string;
    loose: boolean;
    options: Options;
    parse(comp: string): void;
    test(version: string | SemVer): boolean;
    intersects(comp: Comparator, optionsOrLoose?: boolean | Options): boolean;
}

export class Range {
    constructor(range: string | Range, optionsOrLoose?: boolean | Options);

    range: string;
    raw: string;
    loose: boolean;
    options: Options;
    includePrerelease: boolean;
    format(): string;
    inspect(): string;

    set: ReadonlyArray<ReadonlyArray<Comparator>>;
    parseRange(range: string): ReadonlyArray<Comparator>;
    test(version: string | SemVer): boolean;
    intersects(range: Range, optionsOrLoose?: boolean | Options): boolean;
}