package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
)

type RemoteActor struct {
	iri, inbox, sharedInbox string
	info                    map[string]interface{}
}

func NewRemoteActor(iri string) (RemoteActor, error) {
	info, err := get(iri)
	if err != nil {
		return RemoteActor{}, err
	}
	inbox := info["inbox"].(string)
	var endpoints map[string]interface{}
	var sharedInbox string
	if info["endpoints"] != nil {
		endpoints = info["endpoints"].(map[string]interface{})
		if val, ok := endpoints["sharedInbox"]; ok {
			sharedInbox = val.(string)
		}
	}
	return RemoteActor{
		iri:         iri,
		inbox:       inbox,
		sharedInbox: sharedInbox,
	}, err
}

func get(iri string) (info map[string]interface{}, err error) {
	buf := new(bytes.Buffer)
	req, err := http.NewRequest("GET", iri, buf)
	if err != nil {
		return
	}
	req.Header.Add("Accept", ContentTypeAs2)
	req.Header.Add("User-Agent", fmt.Sprintf("%s %s", libName, version))
	req.Header.Add("Accept-Charset", "utf-8")
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return
	}
	responseData, _ := ioutil.ReadAll(resp.Body)
	if !isSuccess(resp.StatusCode) {
		return
	}
	var e interface{}
	err = json.Unmarshal(responseData, &e)
	if err != nil {
		return
	}
	info = e.(map[string]interface{})
	return
}