import { createSelector } from 'reselect'
import {
  IAvatarState,
  IGravatarStatusByEmail,
  IGravatarByEmail,
  ICompanyLogoStatusByDomain,
  ICompanyLogoByDomain,
} from './interfaces'
import { Status } from '../../interfaces/status'
import { extractDomain } from './helpers'

interface EmailProps {
  email: string,
}

export const root = (state: any): IAvatarState => state.avatar
export const gravatarStatusByEmail = (state: any): IGravatarStatusByEmail => root(state).gravatarStatusByEmail
export const gravatarByEmail = (state: any): IGravatarByEmail => root(state).gravatarByEmail
export const gravatarDataUrlByEmail = (state: any): IGravatarByEmail => root(state).gravatarDataUrlByEmail
export const companyLogoStatusByDomain = (state: any): ICompanyLogoStatusByDomain => root(state).companyLogoStatusByDomain
export const companyLogoByDomain = (state: any): ICompanyLogoByDomain => root(state).companyLogoByDomain
export const companyDataUrlLogoByDomain = (state: any): ICompanyLogoByDomain => root(state).companyLogoDataUrlByDomain

const emailFromProps = (state: any, { email }: EmailProps) => email

export const makeAvatarDataUrl = (email: string) => createSelector([
  gravatarDataUrlByEmail,
  companyDataUrlLogoByDomain,
], (
  gravatarByEmail: IGravatarByEmail,
  companyLogoByDomain: ICompanyLogoByDomain,
) => {
  const domain = extractDomain(email)
  if (companyLogoByDomain[domain]) {
    return companyLogoByDomain[domain]
  } else if (gravatarByEmail[email]) {
    return gravatarByEmail[email]
  }
})

export const makeAvatarUrl = () => {
  return createSelector([
    gravatarByEmail,
    companyLogoByDomain,
    emailFromProps,
  ], (
    gravatarByEmail: IGravatarByEmail,
    companyLogoByDomain: ICompanyLogoByDomain,
    email: string,
  ): string => {
    
    const domain = extractDomain(email)
    if (companyLogoByDomain[domain]) {
      return companyLogoByDomain[domain]
    } else if (gravatarByEmail[email]) {
      return gravatarByEmail[email]
    }
  })
}

export const makeAvatarStatus = () => {
  return createSelector([
    gravatarStatusByEmail,
    companyLogoStatusByDomain,
    emailFromProps,
  ], (
    gravatarStatusByEmail: IGravatarStatusByEmail,
    companyLogoStatusByDomain: ICompanyLogoStatusByDomain,
    email: string,
  ): Status => {
    const domain = extractDomain(email)
    const companyLogoStatus = companyLogoStatusByDomain[domain]
    if (companyLogoStatus === Status.Success || companyLogoStatus === Status.Pending) {
      return companyLogoStatus
    }

    return gravatarStatusByEmail[email]
  })
}