debug                       = require('debug')('endo-core:router')
MeshbluAuth                 = require 'express-meshblu-auth'
_                           = require 'lodash'
passport                    = require 'passport'
httpSignature               = require '@octoblu/connect-http-signature'
CredentialsDeviceController = require './controllers/credentials-device-controller'
FormSchemaController        = require './controllers/form-schema-controller'
HealthcheckController       = require './controllers/healthcheck-controller'
MessagesController          = require './controllers/messages-controller'
MessagesV2Controller        = require './controllers/messages-v2-controller'
MessageSchemaController     = require './controllers/message-schema-controller'
OctobluAuthController       = require './controllers/octoblu-auth-controller'
ResponseSchemaController    = require './controllers/response-schema-controller'
StaticSchemasController     = require './controllers/static-schemas-controller'
UserDevicesController       = require './controllers/user-devices-controller'

class Router
  constructor: (options) ->
    {
      appOctobluHost
      credentialsDeviceService
      messageRouter
      messagesService
      @meshbluConfig
      @meshbluPublicKey
      serviceUrl
      userDeviceManagerUrl
      staticSchemasPath
      @skipRedirectAfterApiAuth
      healthcheckService
    } = options

    throw new Error 'appOctobluHost is required' unless appOctobluHost?
    throw new Error 'credentialsDeviceService is required' unless credentialsDeviceService?
    throw new Error 'meshbluConfig is required' unless @meshbluConfig?
    throw new Error 'meshbluPublicKey is required' unless @meshbluPublicKey?
    throw new Error 'messagesService is required' unless messagesService?
    throw new Error 'messageRouter is required' unless messageRouter?
    throw new Error 'serviceUrl is required' unless serviceUrl?
    throw new Error 'userDeviceManagerUrl is required' unless userDeviceManagerUrl?
    throw new Error 'healthcheckService is required' unless healthcheckService?
    throw new Error 'healthcheckService.healthcheck is not a function (and must be)' unless _.isFunction healthcheckService.healthcheck

    @credentialsDeviceController = new CredentialsDeviceController {credentialsDeviceService, appOctobluHost, serviceUrl, userDeviceManagerUrl}
    @formSchemaController        = new FormSchemaController {messagesService}
    @healthcheckController       = new HealthcheckController {healthcheckService}
    @messagesController          = new MessagesController {messageRouter}
    @messagesV2Controller        = new MessagesV2Controller {messageRouter}
    @messageSchemaController     = new MessageSchemaController {messagesService}
    @octobluAuthController       = new OctobluAuthController
    @responseSchemaController    = new ResponseSchemaController {messagesService}
    @staticSchemasController     = new StaticSchemasController {staticSchemasPath}
    @userDevicesController       = new UserDevicesController

  rejectIfNotServiceUuid: (req, res, next) =>
    debug "checking service uuid"
    incomingUuid = req.get 'x-meshblu-uuid'
    unless incomingUuid  == @meshbluConfig.uuid
      message = "x-meshblu-uuid should be #{@meshbluConfig.uuid}, but was #{incomingUuid}"
      debug message
      return res.status(401).send message
    next()

  route: (app) =>
    meshbluAuth = new MeshbluAuth @meshbluConfig

    app.get '/', (req, res) => res.redirect('/auth/octoblu')
    app.get '/v1/form-schema', @formSchemaController.list
    app.get '/v1/message-schema', @messageSchemaController.list
    app.get '/v1/response-schema', @responseSchemaController.list
    app.get '/schemas/:name', @staticSchemasController.get

    app.get '/proofoflife', @healthcheckController.get

    app.get '/auth/octoblu', passport.authenticate('octoblu')
    app.get '/auth/octoblu/callback', passport.authenticate('octoblu', failureRedirect: '/auth/octoblu'), @octobluAuthController.storeAuthAndRedirect

    app.post '/v2/messages', httpSignature.verify(pub: @meshbluPublicKey), httpSignature.gateway(), @rejectIfNotServiceUuid, @messagesV2Controller.create

    app.use meshbluAuth.auth()
    app.use meshbluAuth.gatewayRedirect('/auth/octoblu')

    upsert = @credentialsDeviceController.upsertWithRedirect
    upsert = @credentialsDeviceController.upsertWithoutRedirect if @skipRedirectAfterApiAuth

    app.get  '/auth/api', passport.authenticate('api')
    app.get  '/auth/api/callback', passport.authenticate('api'), upsert
    app.post  '/auth/api/callback', passport.authenticate('api'), upsert

    app.post '/v1/messages', @messagesController.create

    app.all  '/credentials/:credentialsDeviceUuid*', @credentialsDeviceController.getCredentialsDevice
    app.get  '/credentials/:credentialsDeviceUuid', @credentialsDeviceController.get
    app.get  '/credentials/:credentialsDeviceUuid/user-devices', @userDevicesController.list
    app.post '/credentials/:credentialsDeviceUuid/user-devices', @userDevicesController.create
    app.delete  '/credentials/:credentialsDeviceUuid/user-devices/:userDeviceUuid', @userDevicesController.delete

    app.use (req, res) => res.redirect '/auth/api'

module.exports = Router