package generator

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"math/rand"
	"os"
	"strings"
)


type EmojipastaConfig struct {
	WordDelimiter string
	MaxEmojisPerWord int
	FixedEmojiNumber bool
}

func SplitWordByDelimiter(word string, delimiter string) []string{
	return strings.Split(word, delimiter)
}

func AddEmojisToSlice(phrase []string, maxEmojisPerWord int, fixedEmojiNumber bool) string{
	////emj := retrieveEmojis()
	//var p fastjson.Parser
	//f, err := ioutil.ReadAll("assets/emojis.json")
	//if err != nil {
	//	log.Fatal(err)
	//}
	//v, err2 := p.Parse(string(f))
	//if err2 != nil {
	//	log.Fatal(err2)
	//}
	//fmt.Println(v.GetStringBytes("dlc"))
	// Open our jsonFile

	jsonFile, err := os.Open("assets/emojis.json")
	// if we os.Open returns an error then handle it
	if err != nil {
		fmt.Println(err)
	}
	// defer the closing of our jsonFile so that we can parse it later on
	defer jsonFile.Close()

	byteValue, _ := ioutil.ReadAll(jsonFile)

	var result map[string]interface{}
	var emojis []string

	var finalString string

	err2 := json.Unmarshal(byteValue, &result)
	if err2 != nil {
		return ""
	}

	if fixedEmojiNumber {
		for j, word := range phrase {
			if j == 0 {
				finalString += word
			} else {
				finalString +=  " " + word
			}

			emojis = strings.Split(fmt.Sprintf("%v", result[strings.ToLower(word)]), " ")
			for i := 1; i <= maxEmojisPerWord; i++{
				index := rand.Intn(len(emojis))
				if emojis[index] != "<nil>"{
					finalString += emojis[index]
				}
			}
		}
	} else {
		rnd := rand.Intn(maxEmojisPerWord)
		for j, word := range phrase {
			if j == 0 {
				finalString += word
			} else {
				finalString +=  " " + word
			}

			emojis = strings.Split(fmt.Sprintf("%v", result[strings.ToLower(word)]), " ")
			for i := 0; i <= rnd; i++{
				index := rand.Intn(len(emojis))
				if emojis[index] != "<nil>"{
					finalString += emojis[index]
				}
			}
			rnd = rand.Intn(maxEmojisPerWord)
		}
	}
	return strings.ReplaceAll(strings.ReplaceAll(finalString, "[", ""), "]", "")

}