package generators

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

type DuergarArrays struct {
	Nm1  []string `json:"nm1"`
	Nm2  []string `json:"nm2"`
	Nm3  []string `json:"nm3"`
	Nm4  []string `json:"nm4"`
	Nm5  []string `json:"nm5"`
	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"`
	Nm13 []string `json:"nm13"`
}

func LoadDuergarArrays(path string) (*DuergarArrays, error) {
	file, err := os.Open(path)
	if err != nil {
		return nil, err
	}
	defer file.Close()
	var arrays DuergarArrays
	if err := json.NewDecoder(file).Decode(&arrays); err != nil {
		return nil, err
	}
	return &arrays, nil
}

func DuergarNameMas(arr *DuergarArrays, checkSwear func(string) bool) string {
	rnd := rand.Intn(len(arr.Nm1))
	rnd2 := rand.Intn(len(arr.Nm2))
	nMs := arr.Nm1[rnd] + arr.Nm2[rnd2]
	if checkSwear != nil && checkSwear(nMs) {
		return ""
	}
	return nMs
}

func DuergarNameFem(arr *DuergarArrays, checkSwear func(string) bool) string {
	rnd := rand.Intn(len(arr.Nm3))
	rnd2 := rand.Intn(len(arr.Nm4))
	nMs := arr.Nm3[rnd] + arr.Nm4[rnd2]
	if checkSwear != nil && checkSwear(nMs) {
		return ""
	}
	return nMs
}

func DuergarNameSur(arr *DuergarArrays, checkSwear func(string) bool) string {
	nTp := rand.Intn(2)
	rnd := rand.Intn(len(arr.Nm5))
	rnd2 := rand.Intn(len(arr.Nm6))
	rnd3 := rand.Intn(len(arr.Nm7))
	rnd4 := rand.Intn(len(arr.Nm10))
	rnd5 := rand.Intn(len(arr.Nm11))
	if nTp == 0 {
		for arr.Nm11[rnd5] == arr.Nm7[rnd3] && arr.Nm7[rnd3] == arr.Nm5[rnd] {
			rnd3 = rand.Intn(len(arr.Nm7))
		}
		nMs := arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm7[rnd3] + arr.Nm10[rnd4] + arr.Nm11[rnd5]
		if checkSwear != nil && checkSwear(nMs) {
			return ""
		}
		return nMs
	} else {
		rnd6 := rand.Intn(len(arr.Nm8))
		rnd7 := rand.Intn(len(arr.Nm9))
		for arr.Nm11[rnd5] == arr.Nm9[rnd6] && arr.Nm9[rnd6] == arr.Nm7[rnd3] {
			rnd6 = rand.Intn(len(arr.Nm9))
		}
		nMs := arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm7[rnd3] + arr.Nm8[rnd6] + arr.Nm9[rnd7] + arr.Nm10[rnd4] + arr.Nm11[rnd5]
		if checkSwear != nil && checkSwear(nMs) {
			return ""
		}
		return nMs
	}
}

func DuergarNameFull(arr *DuergarArrays, gender string, checkSwear func(string) bool) string {
	var first string
	if gender == "female" {
		first = DuergarNameFem(arr, checkSwear)
	} else {
		first = DuergarNameMas(arr, checkSwear)
	}
	surname := DuergarNameSur(arr, checkSwear)
	return first + " " + surname
}