package generators

import (
	"encoding/json"
	"math/rand"
	"os"
)

type DeepGnomeData struct {
	Male struct {
		Nm1 []string `json:"nm1"`
		Nm2 []string `json:"nm2"`
		Nm3 []string `json:"nm3"`
		Nm4 []string `json:"nm4"`
		Nm5 []string `json:"nm5"`
	} `json:"male"`
	Female struct {
		Nm6  []string `json:"nm6"`
		Nm7  []string `json:"nm7"`
		Nm8  []string `json:"nm8"`
		Nm9  []string `json:"nm9"`
		Nm10 []string `json:"nm10"`
		Nm11 []string `json:"nm11"`
		Nm12 []string `json:"nm12"`
	} `json:"female"`
	Surname1 []string `json:"surname1"`
	Surname2 []string `json:"surname2"`
}

var deepGnomeData DeepGnomeData

func LoadDeepGnomeData(path string) error {
	file, err := os.Open(path)
	if err != nil {
		return err
	}
	defer file.Close()
	return json.NewDecoder(file).Decode(&deepGnomeData)
}

func GenerateDeepGnomeName(gender string) string {
	var nMs string
	if gender == "female" {
		nMs = generateDeepGnomeFemaleName()
	} else {
		nMs = generateDeepGnomeMaleName()
	}
	sur1 := deepGnomeData.Surname1[rand.Intn(len(deepGnomeData.Surname1))]
	sur2 := deepGnomeData.Surname2[rand.Intn(len(deepGnomeData.Surname2))]
	return nMs + " " + sur1 + sur2
}

func generateDeepGnomeMaleName() string {
	m := deepGnomeData.Male
	rnd := rand.Intn(len(m.Nm1))
	rnd2 := rand.Intn(len(m.Nm2))
	rnd3 := rand.Intn(len(m.Nm3))
	rnd4 := rand.Intn(len(m.Nm4))
	rnd5 := rand.Intn(len(m.Nm5))
	for m.Nm3[rnd3] == m.Nm1[rnd] || m.Nm3[rnd3] == m.Nm5[rnd5] {
		rnd3 = rand.Intn(len(m.Nm3))
	}
	return m.Nm1[rnd] + m.Nm2[rnd2] + m.Nm3[rnd3] + m.Nm4[rnd4] + m.Nm5[rnd5]
}

func generateDeepGnomeFemaleName() string {
	f := deepGnomeData.Female
	i := rand.Intn(10)
	if i < 5 {
		rnd := rand.Intn(len(f.Nm6))
		rnd2 := rand.Intn(len(f.Nm7))
		rnd3 := rand.Intn(len(f.Nm8))
		rnd4 := rand.Intn(len(f.Nm9))
		rnd5 := rand.Intn(len(f.Nm12))
		if rnd < 5 && rnd5 < 7 {
			for rnd5 < 7 {
				rnd5 = rand.Intn(len(f.Nm12))
			}
		}
		for f.Nm8[rnd3] == f.Nm6[rnd] || f.Nm8[rnd3] == f.Nm12[rnd5] {
			rnd3 = rand.Intn(len(f.Nm8))
		}
		return f.Nm6[rnd] + f.Nm7[rnd2] + f.Nm8[rnd3] + f.Nm9[rnd4] + f.Nm12[rnd5]
	} else {
		rnd := rand.Intn(len(f.Nm6))
		rnd2 := rand.Intn(len(f.Nm7))
		rnd3 := rand.Intn(len(f.Nm8))
		rnd4 := rand.Intn(len(f.Nm9))
		rnd5 := rand.Intn(len(f.Nm10))
		rnd6 := rand.Intn(len(f.Nm11))
		for f.Nm10[rnd5] == f.Nm8[rnd3] || f.Nm8[rnd3] == f.Nm6[rnd] {
			rnd3 = rand.Intn(len(f.Nm8))
		}
		return f.Nm6[rnd] + f.Nm7[rnd2] + f.Nm8[rnd3] + f.Nm9[rnd4] + f.Nm10[rnd5] + f.Nm11[rnd6]
	}
}