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// Eko: A terminal based social media platform
// Copyright (C) 2025 Kyren223
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package config
import (
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
"reflect"
"github.com/kyren223/eko/internal/client/ui/colors"
)
type Config struct {
ServerName string `json:"server_name"`
PrivateKeyPath string `json:"private_key_path"`
InsertModeTabToSpace bool `json:"insert_mode_tab_to_space"`
InsertModeSpacesPerTab uint8 `json:"insert_mode_spaces_per_tab"`
InsecureDebugMode bool `json:"insecure_debug_mode"`
Colors []string `json:"colors"`
AnonymousDeviceAnalytics bool `json:"anonymous_device_analytics"`
ScreenBorders bool `json:"screen_borders"`
}
func DefaultConfig() Config {
return Config{
ServerName: "eko.kyren.codes",
PrivateKeyPath: "",
InsertModeTabToSpace: true,
InsertModeSpacesPerTab: 4,
InsecureDebugMode: false,
Colors: nil,
AnonymousDeviceAnalytics: true,
ScreenBorders: true,
}
}
func VerifyAndFixConfig(config *Config) error {
if config.ServerName == "" {
config.ServerName = DefaultConfig().ServerName
}
if config.Colors != nil {
for i, color := range config.Colors {
if !colors.IsHex(color) {
return fmt.Errorf("color at %v is not a valid hex color", i)
}
}
if len(config.Colors) != colors.Count {
return fmt.Errorf(
"expected %v colors, got %v colors, set this value to null to use the default colors",
colors.Count, len(config.Colors),
)
}
colors.LoadStrings(config.Colors)
}
return nil
}
var (
config = Config{}
ConfigDir string
ConfigFile string
)
func LoadConfig() error {
userConfigDir, err := os.UserConfigDir()
if err != nil {
return err
}
ConfigDir = filepath.Join(userConfigDir, "eko")
err = os.MkdirAll(ConfigDir, 0o750)
if err != nil {
return err
}
ConfigFile = filepath.Join(ConfigDir, "config.json")
contents, err := os.ReadFile(ConfigFile) // #nosec 304
if errors.Is(err, os.ErrNotExist) {
config = DefaultConfig()
return writeConfig()
}
if err != nil {
return err
}
var rawMap map[string]json.RawMessage
if err := json.Unmarshal(contents, &rawMap); err != nil {
return err
}
defaultVal := reflect.ValueOf(DefaultConfig())
finalConfig := reflect.New(defaultVal.Type()).Elem()
finalConfig.Set(defaultVal)
for i := 0; i < defaultVal.NumField(); i++ {
field := defaultVal.Type().Field(i)
jsonTag := field.Tag.Get("json")
if jsonTag == "" {
jsonTag = field.Name
}
rawValue, found := rawMap[jsonTag]
fieldValue := finalConfig.Field(i)
if !found || !fieldValue.CanAddr() {
continue
}
err := json.Unmarshal(rawValue, fieldValue.Addr().Interface())
if err != nil {
return fmt.Errorf("error unmarshaling field %s: %w", field.Name, err)
}
}
config = finalConfig.Interface().(Config)
err = VerifyAndFixConfig(&config)
if err != nil {
return err
}
return writeConfig()
}
func writeConfig() error {
b, err := json.MarshalIndent(config, "", " ")
if err != nil {
return err
}
return os.WriteFile(ConfigFile, b, 0o600)
}
func ReadConfig() Config {
return config
}
func UseConfig(f func(config *Config)) error {
f(&config)
return writeConfig()
}
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