package generators

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

type KalashtarArrays 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"`
}

func LoadKalashtarArrays(path string) (KalashtarArrays, error) {
	var arrays KalashtarArrays
	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 KalashtarNameMas(arr *KalashtarArrays, swearFilter func(string) bool) string {
	nTp := rand.Intn(4)
	rnd := rand.Intn(len(arr.Nm1))
	rnd2 := rand.Intn(len(arr.Nm2))
	var nMs string
	if nTp < 2 {
		if nTp == 0 {
			nMs = arr.Nm1[rnd]
		} else {
			nMs = arr.Nm1[rnd] + arr.Nm2[rnd2]
		}
	} else {
		rnd3 := rand.Intn(len(arr.Nm3))
		rnd4 := rand.Intn(len(arr.Nm4))
		if nTp == 2 {
			nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm3[rnd3]
		} else {
			nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm3[rnd3] + arr.Nm4[rnd4]
		}
	}
	if swearFilter == nil || !swearFilter(nMs) {
		return nMs
	}
	return ""
}

func GenerateKalashtarNames(arr *KalashtarArrays, swearFilter func(string) bool) []string {
	names := make([]string, 0, 10)
	for i := 0; i < 10; i++ {
		nMs := KalashtarNameMas(arr, swearFilter)
		for nMs == "" {
			nMs = KalashtarNameMas(arr, swearFilter)
		}
		names = append(names, nMs)
	}
	return names
}