package config

import (
	"fmt"
	"os"

	"gitea.micah.wiki/pandora/naive/pkg/filex"
)

type Config struct {
	ShellConfig string    `yaml:"shell_config" toml:"shell_config" json:"shell_config"`
	Nginx       []*Nginx  `yaml:"nginx" toml:"nginx" json:"nginx"`
	AcmeShs     []*AcmeSh `yaml:"acme_sh" toml:"acme_sh" json:"acme_sh"`
}

var (
	config      *Config
	configTypes = []string{"yaml", "toml", "json"}
	fileName    = ""
	configType  = ""
)

func init() {
	homeDir, _ := os.UserHomeDir()
	for _, cType := range configTypes {
		name := fmt.Sprintf("%s/.magic/config.%s", homeDir, cType)
		exist, err := filex.Exists(name)
		if err != nil {
			panic(err)
		}
		if exist {
			fileName = name
			configType = cType
			break
		}
	}
	conf, err := parseByType()
	if err != nil {
		panic(err)
	}
	config = conf
}

func parseByType() (*Config, error) {
	conf := &Config{}
	switch configType {
	case "yaml":
		err := filex.ParseYAML(fileName, conf)
		if err != nil {
			return nil, err
		}
	case "toml":
		err := filex.ParseTOML(fileName, conf)
		if err != nil {
			return nil, err
		}
	case "json":
		err := filex.ParseJSON(fileName, conf)
		if err != nil {
			return nil, err
		}
	}
	return conf, nil
}

func Save(conf *Config) error {
	if configType == "" {
		configType = "yaml"
		homeDir, _ := os.UserHomeDir()
		fileName = fmt.Sprintf("%s/.magic/config.%s", homeDir, configType)
	}
	switch configType {
	case "yaml":
		err := filex.GenerateYAML(fileName, conf)
		if err != nil {
			return err
		}
	case "toml":
		err := filex.ParseTOML(fileName, conf)
		if err != nil {
			return err
		}
	case "json":
		err := filex.ParseJSON(fileName, conf)
		if err != nil {
			return err
		}
	}
	return nil
}

func Get() *Config {
	return config
}