package generators

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

type VerdanArrays 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"`
}

func LoadVerdanArrays(path string) (VerdanArrays, error) {
	var arr VerdanArrays
	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 GenerateVerdanNames(arr *VerdanArrays, swearFilter func(string) bool) []string {
	names := make([]string, 0, 10)
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	for i := 0; i < 10; i++ {
		var nMs string
		nTp := r.Intn(5)
		rnd := r.Intn(len(arr.Nm1))
		rnd2 := r.Intn(len(arr.Nm2))
		rnd5 := r.Intn(len(arr.Nm7))
		if nTp < 2 {
			for arr.Nm7[rnd5] == "" {
				rnd5 = r.Intn(len(arr.Nm7))
			}
			nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm7[rnd5]
		} else if nTp < 4 {
			rnd3 := r.Intn(len(arr.Nm3))
			rnd4 := r.Intn(len(arr.Nm4))
			for arr.Nm3[rnd3] == arr.Nm7[rnd5] || arr.Nm3[rnd3] == arr.Nm1[rnd] {
				rnd3 = r.Intn(len(arr.Nm3))
			}
			nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm3[rnd3] + arr.Nm4[rnd4] + arr.Nm7[rnd5]
		} else {
			rnd3 := r.Intn(len(arr.Nm3))
			rnd4 := r.Intn(len(arr.Nm4))
			rnd6 := r.Intn(len(arr.Nm6))
			rnd7 := r.Intn(len(arr.Nm5))
			for arr.Nm3[rnd5] == arr.Nm5[rnd7] || arr.Nm5[rnd7] == arr.Nm7[rnd5] {
				rnd7 = r.Intn(len(arr.Nm5))
			}
			nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm3[rnd3] + arr.Nm4[rnd4] + arr.Nm5[rnd7] + arr.Nm6[rnd6] + arr.Nm7[rnd5]
		}
		for nMs == "" || swearFilter(nMs) {
			nTp = r.Intn(5)
			rnd = r.Intn(len(arr.Nm1))
			rnd2 = r.Intn(len(arr.Nm2))
			rnd5 = r.Intn(len(arr.Nm7))
			if nTp < 2 {
				for arr.Nm7[rnd5] == "" {
					rnd5 = r.Intn(len(arr.Nm7))
				}
				nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm7[rnd5]
			} else if nTp < 4 {
				rnd3 := r.Intn(len(arr.Nm3))
				rnd4 := r.Intn(len(arr.Nm4))
				for arr.Nm3[rnd3] == arr.Nm7[rnd5] || arr.Nm3[rnd3] == arr.Nm1[rnd] {
					rnd3 = r.Intn(len(arr.Nm3))
				}
				nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm3[rnd3] + arr.Nm4[rnd4] + arr.Nm7[rnd5]
			} else {
				rnd3 := r.Intn(len(arr.Nm3))
				rnd4 := r.Intn(len(arr.Nm4))
				rnd6 := r.Intn(len(arr.Nm6))
				rnd7 := r.Intn(len(arr.Nm5))
				for arr.Nm3[rnd5] == arr.Nm5[rnd7] || arr.Nm5[rnd7] == arr.Nm7[rnd5] {
					rnd7 = r.Intn(len(arr.Nm5))
				}
				nMs = arr.Nm1[rnd] + arr.Nm2[rnd2] + arr.Nm3[rnd3] + arr.Nm4[rnd4] + arr.Nm5[rnd7] + arr.Nm6[rnd6] + arr.Nm7[rnd5]
			}
		}
		names = append(names, nMs)
	}
	return names
}