version.js

// Version class for checking release versions; adjusted from jskos-server
export default class Version {

  constructor(version) {
    if (version.startsWith("v")) {
      version = version.slice(1)
    }
    this.version = version
    const [major = 0, minor = 0, patch = 0] = version.split(".").map(v => parseInt(v))
    this.major = major
    this.minor = minor
    this.patch = patch
  }

  gt(version) {
    version = Version.from(version)
    return this.major > version.major ||
      (this.major == version.major && this.minor > version.minor) ||
      (this.major == version.major && this.minor == version.minor && this.patch > version.patch)
  }
  gte(version) {
    version = Version.from(version)
    return this.major > version.major ||
      (this.major == version.major && this.minor > version.minor) ||
      (this.major == version.major && this.minor == version.minor && this.patch >= version.patch)
  }
  eq(version) {
    return !this.lt(version) && !this.gt(version)
  }
  lt(version) {
    return !this.gte(version)
  }
  lte(version) {
    return !this.gt(version)
  }

  static from(version) {
    return version instanceof Version ? version : new Version(version)
  }

}