function noStringDefined(string) {
  return !string || string === 0
}

class PageParams {
  constructor(pageParams) {
    this.name = pageParams.name
    this.externalLink = pageParams.externalLink
    this.internalPage = pageParams.internalPage
  }

  overwrite(assignPageParams) {
    const pageParams = this
    if (assignPageParams.name !== undefined) {
      pageParams.name = assignPageParams.name
    }
    if (assignPageParams.externalLink !== undefined) {
      pageParams.externalLink = assignPageParams.externalLink
    }
    if (assignPageParams.internalPage !== undefined) {
      pageParams.internalPage = { ...pageParams.internalPage, ...assignPageParams.internalPage }
    }
    return pageParams
  }

  get isInternalPage() {
    return noStringDefined(this.externalLink)
  }

  get link() {
    return this.isInternalPage ? this.internalPage.pageRoute : this.externalLink
  }

  redirectToPage(thisComponent) {
    if (this.isInternalPage) {
      thisComponent.$router.push(this.internalPage.pageRoute)
    } else {
      window.location.href = this.externalLink
    }
  }
}

export const defaultPageParamsPages = {
  ORGANIZATION: new PageParams({
    name: 'organization',

    externalLink: null, // if string is defined and not empty it's dominating

    internalPage: {
      pageRoute: '/organization', // static, don't change! internal page in case no external is defined
      footerIdent: 'site.made', // localized string identifier
      headTitleIdent: 'site.made', // localized string identifier
      headlineIdent: 'site.made', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.organization',
    },
  }),
  DONATE: new PageParams({
    name: 'donate',

    externalLink: null, // if string is defined and not empty it's dominating

    internalPage: {
      pageRoute: '/donate', // static, don't change! internal page in case no external is defined
      footerIdent: 'site.donate', // localized string identifier
      headTitleIdent: 'site.donate', // localized string identifier
      headlineIdent: 'site.donate', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.donate',
    },
  }),
  IMPRINT: new PageParams({
    name: 'imprint',

    externalLink: null, // if string is defined and not empty it's dominating

    internalPage: {
      pageRoute: '/imprint', // static, don't change! internal page in case no external is defined
      footerIdent: 'site.imprint', // localized string identifier
      headTitleIdent: 'site.imprint', // localized string identifier
      headlineIdent: 'site.imprint', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.imprint',
    },
  }),
  TERMS_AND_CONDITIONS: new PageParams({
    name: 'terms-and-conditions',

    externalLink: null, // if string is defined and not empty it's dominating

    internalPage: {
      pageRoute: '/terms-and-conditions', // static, don't change! internal page in case no external is defined
      footerIdent: 'site.termsAndConditions', // localized string identifier
      headTitleIdent: 'site.termsAndConditions', // localized string identifier
      headlineIdent: 'site.termsAndConditions', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.termsAndConditions',
    },
  }),
  CODE_OF_CONDUCT: new PageParams({
    name: 'code-of-conduct',

    externalLink: null, // if string is defined and not empty it's dominating

    internalPage: {
      pageRoute: '/code-of-conduct', // static, don't change! internal page in case no external is defined
      footerIdent: 'site.code-of-conduct', // localized string identifier
      headTitleIdent: 'site.code-of-conduct', // localized string identifier
      headlineIdent: 'site.code-of-conduct', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.codeOfConduct',
    },
  }),
  DATA_PRIVACY: new PageParams({
    name: 'data-privacy',

    externalLink: null, // if string is defined and not empty it's dominating

    internalPage: {
      pageRoute: '/data-privacy', // static, don't change! internal page in case no external is defined
      footerIdent: 'site.data-privacy', // localized string identifier
      headTitleIdent: 'site.data-privacy', // localized string identifier
      headlineIdent: 'site.data-privacy', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.dataPrivacy',
    },
  }),
  FAQ: new PageParams({
    name: 'faq',

    externalLink: null, // if string is defined and not empty it's dominating

    internalPage: {
      pageRoute: '/faq', // static, don't change! internal page in case no external is defined
      footerIdent: 'site.faq', // localized string identifier
      headTitleIdent: 'site.faq', // localized string identifier
      headlineIdent: 'site.faq', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.faq',
    },
  }),
  SUPPORT: new PageParams({
    name: 'support',

    externalLink: null,

    internalPage: {
      pageRoute: '/support', // static, don't change '*/support'! internal page in case no external is defined
      footerIdent: 'site.support', // localized string identifier
      headTitleIdent: 'site.support', // localized string identifier
      headlineIdent: 'site.support', // localized string identifier. on null it's hidden, on empty string default is used
      hasContainer: true,
      hasBaseCard: true,
      hasLoginInHeader: true,
      // in case internal page content is here 'webapp/locales/html/'
      htmlIdent: 'html.support',
    },
  }),
}