package generators

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

type ElfArrays 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"`
	Nm14 []string `json:"nm14"`
	Nm15 []string `json:"nm15"`
	Nm16 []string `json:"nm16"`
	Nm17 []string `json:"nm17"`
	Nm18 []string `json:"nm18"`
}

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

func ElfNameFem(arr *ElfArrays, check func(string) bool) string {
	rnd := rand.Intn(len(arr.Nm3))
	rnd2 := rand.Intn(len(arr.Nm4))
	nMs := arr.Nm3[rnd] + arr.Nm4[rnd2]
	if check(strings.ToLower(nMs)) {
		return ""
	}
	return nMs
}

func ElfNameMas(arr *ElfArrays, check func(string) bool) string {
	rnd := rand.Intn(len(arr.Nm1))
	rnd2 := rand.Intn(len(arr.Nm2))
	nMs := arr.Nm1[rnd] + arr.Nm2[rnd2]
	if check(strings.ToLower(nMs)) {
		return ""
	}
	return nMs
}

func ElfNameSur(arr *ElfArrays, check func(string) bool) string {
	nTp := rand.Intn(8)
	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))
	var nMs string
	if nTp < 3 {
		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]
	} 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] {
			rnd7 = rand.Intn(len(arr.Nm9))
		}
		if nTp < 6 {
			nMs = arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm7[rnd3] + arr.Nm8[rnd6] + arr.Nm9[rnd7] + arr.Nm10[rnd4] + arr.Nm11[rnd5]
		} else {
			rnd8 := rand.Intn(len(arr.Nm8))
			rnd9 := rand.Intn(len(arr.Nm9))
			for arr.Nm11[rnd5] == arr.Nm9[rnd6] && arr.Nm9[rnd6] == arr.Nm9[rnd9] {
				rnd7 = rand.Intn(len(arr.Nm9))
			}
			for rnd9 < 8 && rnd7 < 8 {
				rnd7 = rand.Intn(len(arr.Nm9))
			}
			if nTp == 6 {
				nMs = arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm7[rnd3] + arr.Nm8[rnd6] + arr.Nm9[rnd7] + arr.Nm8[rnd8] + arr.Nm9[rnd9] + arr.Nm10[rnd4] + arr.Nm11[rnd5]
			} else {
				nMs = arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm9[rnd7] + arr.Nm8[rnd8] + arr.Nm7[rnd3] + arr.Nm8[rnd6] + arr.Nm9[rnd9] + arr.Nm10[rnd4] + arr.Nm11[rnd5]
			}
		}
	}
	if check(strings.ToLower(nMs)) {
		return ""
	}
	return nMs
}

func ElfNameChild(arr *ElfArrays, check func(string) bool) string {
	nTp := rand.Intn(2)
	rnd := rand.Intn(len(arr.Nm14))
	rnd2 := rand.Intn(len(arr.Nm15))
	rnd3 := rand.Intn(len(arr.Nm18))
	var nMs string
	if nTp == 0 {
		if arr.Nm14[rnd] == "" {
			for arr.Nm18[rnd3] == "" {
				rnd3 = rand.Intn(len(arr.Nm18))
			}
		}
		if arr.Nm18[rnd3] == "" {
			rnd2 = rand.Intn(7)
		}
		nMs = arr.Nm14[rnd] + arr.Nm15[rnd2] + arr.Nm18[rnd3]
	} else {
		rnd4 := rand.Intn(len(arr.Nm16))
		rnd5 := rand.Intn(len(arr.Nm17))
		nMs = arr.Nm14[rnd] + arr.Nm15[rnd2] + arr.Nm16[rnd4] + arr.Nm17[rnd5] + arr.Nm18[rnd3]
	}
	if check(strings.ToLower(nMs)) {
		return ""
	}
	return nMs
}