package generators

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

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

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

func GenerateTieflingName(arr *TieflingArrays, gender string) string {
	switch gender {
	case "female":
		rnd := rand.Intn(len(arr.Nm4))
		rnd2 := rand.Intn(len(arr.Nm5))
		return arr.Nm4[rnd] + arr.Nm5[rnd2]
	case "virtue":
		rnd := rand.Intn(len(arr.Nm3))
		return arr.Nm3[rnd]
	default:
		rnd := rand.Intn(len(arr.Nm1))
		rnd2 := rand.Intn(len(arr.Nm2))
		return arr.Nm1[rnd] + arr.Nm2[rnd2]
	}
}

func GenerateTieflingNames(arr *TieflingArrays, gender string, swearFilter func(string) bool) []string {
	names := make([]string, 0, 10)
	for i := 0; i < 10; i++ {
		var n string
		switch gender {
		case "female":
			n = GenerateTieflingName(arr, "female")
		case "virtue":
			n = GenerateTieflingName(arr, "virtue")
		default:
			n = GenerateTieflingName(arr, "male")
		}
		for n == "" || swearFilter(n) {
			switch gender {
			case "female":
				n = GenerateTieflingName(arr, "female")
			case "virtue":
				n = GenerateTieflingName(arr, "virtue")
			default:
				n = GenerateTieflingName(arr, "male")
			}
		}
		names = append(names, n)
	}
	return names
}