import passport from 'passport'
import {  
  AUTH_CONFIG,
  StrategyMap,
  StrategyConfig
} from '../utils/auth'
import { buildQueryString} from '../utils/qs'

export const createAuthPaths = ({
  app
}) => {
  
  Object.keys(StrategyMap).map((strategyName: string) => {
    const strategyConfig: StrategyConfig = AUTH_CONFIG.strategies[strategyName]
    passport.use(
      new StrategyMap[strategyName](
        {
          ...strategyConfig,
          callbackURL: `/auth-${strategyName}-callback`,
          passReqToCallback: true,
        },
        async (request, token, refreshToken, params, profile, done) => {
          const result = {
            token,
            refreshToken,
            profile,
            tokenType: params.token_type,
            idToken: params.id_token,
            expiresIn: params.expires_in,
          }
          await AUTH_CONFIG.onSuccess?.({
            request,
            ...result
          })
          return done(null, result)
        },
      ),
    )
        app.get(`/auth-${strategyName}`, (req, res) =>{
          const authenticate = passport.authenticate(
            strategyName,
            {
              scope: strategyConfig.scope,
              state: req.query.state
            }
          )
          return authenticate(req, res)
        })
        app.get(`/auth-${strategyName}-callback`, (req, res) =>{
          const state = req.query.state
          const authenticate = passport.authenticate(
            strategyName,
            {},
            (error, result) => {
              if (error) {
                res.status(400)
                res.send(error)
              } else {
                res.redirect(
                  `${AUTH_CONFIG.callbackURL}?${buildQueryString({
                  data: result,
                  state
                })}`,
                )
              }
            }
          )
          return authenticate(req, res)
        })
  })
}