package main

import (
	"errors"
	"fmt"
	"github.com/go-playground/validator/v10"
	"github.com/urfave/cli/v2"
	"gopkg.in/yaml.v2"
	"os"
)

type Config struct {
	InstanceUrl string `yaml:"instance_url"`
}

func LoadConfig(configLocation string) (Config, error) {
	c := Config{}
	dat, err := os.ReadFile(configLocation)
	if err != nil {
		return c, errors.New(fmt.Sprintf("could not read config file %s", configLocation))
	}

	err = yaml.Unmarshal(dat, &c)
	if err != nil {
		return c, errors.New("could not parse yaml")
	}

	validate := validator.New()
	err = validate.Struct(c)
	if err != nil {
		return c, err
	}

	return c, nil
}

func LoadConfigFromContext(cCtx *cli.Context) (Config, error) {
	return LoadConfig(cCtx.String("config"))
}

func SaveConfig(configLocation string, config Config) error {
	dat, err := yaml.Marshal(config)
	if err != nil {
		return errors.New("could not cast config to yaml")
	}

	err = os.WriteFile(configLocation, dat, 0644)
	if err != nil {
		return errors.New(fmt.Sprintf("could not write config file %s", configLocation))
	}

	return nil
}

func SaveConfigFromContext(cCtx *cli.Context, config Config) error {
	return SaveConfig(cCtx.String("config"), config)
}