gator_rss/internal/config/config.go

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2025-10-05 17:59:35 +00:00
package config
import (
"encoding/json"
"fmt"
"os"
)
type Config struct {
DBURL string `json:"db_url"`
CurrentUsername string `json:"current_user_name"`
}
func getConfigFilePath() (string, error) {
const configFileName = ".gatorconfig.json"
homeDir, err := os.UserHomeDir()
if err != nil {
return "", err
}
configFilePath := homeDir + "/" + configFileName
return configFilePath, nil
}
func write(cfg *Config) error {
configFilePath, err := getConfigFilePath()
if err != nil {
return err
}
configPretty, err := json.MarshalIndent(cfg, "", " ")
if err != nil {
return err
}
err = os.WriteFile(configFilePath, configPretty, 0644)
if err != nil {
return err
}
return nil
}
func (cfg *Config) Read() Config {
configFilePath, err := getConfigFilePath()
if err != nil {
panic(err)
}
configFile, err := os.ReadFile(configFilePath)
if err != nil {
panic(err)
}
var configData Config
if err := json.Unmarshal(configFile, &configData); err != nil {
panic(err)
}
return configData
}
func (cfg *Config) SetUser(userName string) error {
if userName == "" {
return fmt.Errorf("username cannot be empty string")
}
cfg.CurrentUsername = userName
if err := write(cfg); err != nil {
return fmt.Errorf("could not set current user! Err: %w", err)
}
return nil
}