83 lines
1.6 KiB
Go
83 lines
1.6 KiB
Go
package d2config
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import (
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"encoding/json"
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"errors"
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"log"
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"os"
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"path"
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)
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var (
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ErrNotInit = errors.New("configuration is not initialized")
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ErrHasInit = errors.New("configuration has already been initialized")
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)
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var singleton *Configuration
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func Initialize() error {
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if singleton != nil {
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return ErrHasInit
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}
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configDir, err := os.UserConfigDir()
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if err != nil {
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singleton = getDefaultConfiguration()
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return nil
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}
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configDir = path.Join(configDir, "OpenDiablo2")
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configPath := path.Join(configDir, "config.json")
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log.Printf("loading configuration file from %s...", configPath)
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configFile, err := os.Open(configPath)
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if err == nil {
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var config Configuration
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decoder := json.NewDecoder(configFile)
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defer configFile.Close()
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if err := decoder.Decode(&config); err == nil {
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singleton = &config
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return nil
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}
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}
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singleton = getDefaultConfiguration()
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return nil
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}
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func Save() error {
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if singleton == nil {
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return ErrNotInit
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}
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configDir, err := os.UserConfigDir()
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if err != nil {
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return err
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}
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configDir = path.Join(configDir, "OpenDiablo2")
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if err := os.MkdirAll(configDir, 0755); err != nil {
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return err
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}
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configPath := path.Join(configDir, "config.json")
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log.Printf("saving configuration file to %s...", configPath)
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configFile, err := os.Create(configPath)
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if err != nil {
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return err
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}
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encoder := json.NewEncoder(configFile)
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encoder.SetIndent("", " ")
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if err := encoder.Encode(singleton); err != nil {
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return err
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}
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return nil
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}
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func Get() (*Configuration, error) {
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if singleton == nil {
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return nil, ErrNotInit
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}
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return singleton, nil
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}
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