package generators

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

type GnomeArrays 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"`
}

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

func GnomeNameFem(arr *GnomeArrays, swearFilter func(string) bool) string {
	rnd := rand.Intn(len(arr.Nm3))
	rnd2 := rand.Intn(len(arr.Nm4))
	return arr.Nm3[rnd] + arr.Nm4[rnd2]
}

func GnomeNameMas(arr *GnomeArrays, swearFilter func(string) bool) string {
	rnd := rand.Intn(len(arr.Nm1))
	rnd2 := rand.Intn(len(arr.Nm2))
	return arr.Nm1[rnd] + arr.Nm2[rnd2]
}

func GnomeNameSur(arr *GnomeArrays, swearFilter func(string) bool) string {
	nTp := rand.Intn(8)
	if nTp < 2 {
		rnd := rand.Intn(len(arr.Nm5))
		rnd2 := rand.Intn(len(arr.Nm10))
		rnd3 := rand.Intn(len(arr.Nm12))
		rnd4 := rand.Intn(len(arr.Nm5))
		rnd5 := rand.Intn(len(arr.Nm10))
		for arr.Nm5[rnd] == "" {
			rnd = rand.Intn(len(arr.Nm5))
		}
		for arr.Nm5[rnd4] == "" {
			rnd4 = rand.Intn(len(arr.Nm5))
		}
		return arr.Nm5[rnd] + arr.Nm10[rnd2] + arr.Nm12[rnd3] + "e" + arr.Nm5[rnd4] + arr.Nm10[rnd5] + arr.Nm12[rnd3] + "e"
	} else {
		rnd := rand.Intn(len(arr.Nm5))
		rnd2 := rand.Intn(len(arr.Nm6))
		rnd3 := rand.Intn(len(arr.Nm7))
		rnd4 := rand.Intn(len(arr.Nm8))
		rnd5 := rand.Intn(len(arr.Nm11))
		if nTp < 3 {
			for arr.Nm7[rnd3] == arr.Nm5[rnd] || arr.Nm7[rnd3] == arr.Nm11[rnd5] {
				rnd3 = rand.Intn(len(arr.Nm7))
			}
			return arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm7[rnd3] + arr.Nm8[rnd4] + arr.Nm11[rnd5]
		} else {
			rnd6 := rand.Intn(len(arr.Nm9))
			rnd7 := rand.Intn(len(arr.Nm10))
			for arr.Nm7[rnd3] == arr.Nm9[rnd6] || arr.Nm9[rnd6] == arr.Nm11[rnd5] {
				rnd6 = rand.Intn(len(arr.Nm9))
			}
			if nTp < 5 {
				return arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm7[rnd3] + arr.Nm8[rnd4] + arr.Nm9[rnd6] + arr.Nm10[rnd7] + arr.Nm11[rnd5]
			} else {
				rnd8 := rand.Intn(len(arr.Nm9))
				rnd9 := rand.Intn(len(arr.Nm10))
				for arr.Nm7[rnd3] == arr.Nm9[rnd8] || arr.Nm9[rnd6] == arr.Nm9[rnd8] {
					rnd8 = rand.Intn(len(arr.Nm9))
				}
				return arr.Nm5[rnd] + arr.Nm6[rnd2] + arr.Nm7[rnd3] + arr.Nm8[rnd4] + arr.Nm9[rnd6] + arr.Nm10[rnd7] + arr.Nm9[rnd8] + arr.Nm10[rnd9] + arr.Nm11[rnd5]
			}
		}
	}
}

func GenerateGnomeNames(arr *GnomeArrays, gender string, swearFilter func(string) bool) []string {
	names := make([]string, 0, 10)
	for i := 0; i < 10; i++ {
		var nMs, baseName string
		if i < 5 {
			rnd := rand.Intn(len(arr.Nm13))
			rnd2 := rand.Intn(len(arr.Nm14))
			for arr.Nm13[rnd] == arr.Nm14[rnd2] {
				rnd2 = rand.Intn(len(arr.Nm14))
			}
			baseName = arr.Nm13[rnd] + arr.Nm14[rnd2]
		} else {
			baseName = GnomeNameSur(arr, swearFilter)
			for baseName == "" {
				baseName = GnomeNameSur(arr, swearFilter)
			}
		}
		if gender == "female" {
			nMs = GnomeNameFem(arr, swearFilter)
			for nMs == "" {
				nMs = GnomeNameFem(arr, swearFilter)
			}
		} else {
			nMs = GnomeNameMas(arr, swearFilter)
			for nMs == "" {
				nMs = GnomeNameMas(arr, swearFilter)
			}
		}
		names = append(names, nMs+" "+baseName)
	}
	return names
}