package generators

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

type FairyArrays 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"`
}

func LoadFairyArrays(path string) (FairyArrays, error) {
	var arrays FairyArrays
	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 GenerateFairyNames(arr FairyArrays, gender string, swearFilter func(string) bool) []string {
	var names []string
	for i := range 10 {
		var n string
		if gender == "female" {
			if i < 3 {
				for {
					n = arr.Nm3[rand.Intn(len(arr.Nm3))] + arr.Nm4[rand.Intn(len(arr.Nm4))]
					if !swearFilter(n) {
						break
					}
				}
			} else if i < 6 {
				for {
					n = arr.Nm7[rand.Intn(len(arr.Nm7))] + arr.Nm8[rand.Intn(len(arr.Nm8))]
					if !swearFilter(n) {
						break
					}
				}
			} else {
				n = arr.Nm10[rand.Intn(len(arr.Nm10))]
			}
		} else {
			if i < 3 {
				for {
					n = arr.Nm1[rand.Intn(len(arr.Nm1))] + arr.Nm2[rand.Intn(len(arr.Nm2))]
					if !swearFilter(n) {
						break
					}
				}
			} else if i < 6 {
				for {
					n = arr.Nm5[rand.Intn(len(arr.Nm5))] + arr.Nm6[rand.Intn(len(arr.Nm6))]
					if !swearFilter(n) {
						break
					}
				}
			} else {
				n = arr.Nm9[rand.Intn(len(arr.Nm9))]
			}
		}
		names = append(names, n)
	}
	return names
}