package main

import (
	"errors"
	"fmt"

	"github.com/hamcha/clessy/tg"
	"github.com/kurrik/witgo/v1/witgo"
)

type ClessyHandler struct {
}

var wit *witgo.Witgo
var witHandler ClessyHandler

func inittalk() {
	// Disable if token is not provided
	if *wittoken == "" {
		panic(errors.New("No or empty wit token provided (-wit)"))
	}

	witgo.NewWitgo(witgo.NewClient(*wittoken), &witHandler)
}

func talk(broker *tg.Broker, update tg.APIMessage) {
}

func (h *ClessyHandler) Action(session *witgo.Session, action string) (response *witgo.Session, err error) {
	response = session
	response.Context.Set("forecast", "sunny")
	return
}

func (h *ClessyHandler) Say(session *witgo.Session, msg string) (response *witgo.Session, err error) {
	response = session
	fmt.Printf("< %v\n", msg)
	return
}

func (h *ClessyHandler) Merge(session *witgo.Session, entities witgo.EntityMap) (response *witgo.Session, err error) {
	var (
		value string
	)
	response = session
	if value, err = entities.FirstEntityValue("location"); err != nil {
		response.Context = witgo.Context{}
		err = nil
	} else {
		response.Context.Merge(witgo.Context{
			"loc": value,
		})
	}
	return
}

func (h *ClessyHandler) Error(session *witgo.Session, msg string) {
}