'use strict'

utils = require 'src/utils'

module.exports = (Networking) ->
    Request: require('./request.coffee') Networking
    Response: require('./response.coffee') Networking

    init: (networking) ->
        __location.change.connect (uri) ->
            # send internal request
            networking.createLocalRequest
                method: Networking.Request.GET
                type: Networking.Request.HTML_TYPE
                uri: uri

        setImmediate ->
            __location.append '/'

    sendRequest: (req, res, callback) ->
        {Request} = Networking

        xhr = new XMLHttpRequest

        xhr.open req.method, req.uri, true

        for name, val of req.headers
            xhr.setRequestHeader name, val
        xhr.setRequestHeader 'X-Expected-Type', req.type

        if cookies = utils.tryFunction(JSON.stringify, null, [req.cookies], null)
            xhr.setRequestHeader 'X-Cookies', cookies

        xhr.onreadystatechange = ->
            return if xhr.readyState isnt 4

            response = xhr.responseText

            if req.type is Request.JSON_TYPE
                response = utils.tryFunction JSON.parse, null, [response], response

            if cookies = xhr.getResponseHeader('X-Cookies')
                cookies = utils.tryFunction JSON.parse, null, [cookies], null

            callback
                status: xhr.status
                data: response
                cookies: cookies

        if utils.isObject(req.data)
            data = utils.tryFunction JSON.stringify, null, [req.data], req.data
        else
            data = req.data
        xhr.send data