101 lines
2.4 KiB
Go
101 lines
2.4 KiB
Go
package config
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"log/slog"
|
|
"reflect"
|
|
"strings"
|
|
|
|
"github.com/spf13/viper"
|
|
"go.yaml.in/yaml/v3"
|
|
)
|
|
|
|
const EnvPrefix string = "JOBSEARCH"
|
|
const EtcConfigPath string = "/etc/job-search"
|
|
|
|
// Each field's cfg tag must match the section's JSCK* constant.
|
|
type JobSearchConfig struct {
|
|
Logging JobSearchConfigLogging `cfg:"logging"`
|
|
Sources JobSearchConfigSources `cfg:"sources"`
|
|
}
|
|
|
|
// Default configuration, taken from the default struct tags
|
|
func LoadDefaultConfig() {
|
|
var conf JobSearchConfig
|
|
if err := applyDefaults(&conf); err != nil {
|
|
panic(fmt.Sprintf("config: %v", err))
|
|
}
|
|
LoadToViper(conf)
|
|
}
|
|
|
|
func (c JobSearchConfig) Map() map[string]any { return mapOf(c) }
|
|
|
|
func (c JobSearchConfig) Flatten() map[string]any { return flattenOf("", c) }
|
|
|
|
func (c JobSearchConfig) TypeOf(key string) (reflect.Kind, error) {
|
|
return typeOf(c, key)
|
|
}
|
|
|
|
func (c JobSearchConfig) ValueOf(key string) (any, error) {
|
|
return valueOf(c, key)
|
|
}
|
|
|
|
func (c *JobSearchConfig) SetValue(key string, value any) error {
|
|
return setValue(c, key, value)
|
|
}
|
|
|
|
// Utility method for loading a configuration from Viper
|
|
func LoadFromViper(conf *JobSearchConfig) {
|
|
keys := viper.AllKeys()
|
|
for idx := range keys {
|
|
key := keys[idx]
|
|
keyType, _ := conf.TypeOf(key)
|
|
if keyType == reflect.Invalid {
|
|
continue
|
|
}
|
|
switch keyType {
|
|
case reflect.String:
|
|
conf.SetValue(key, viper.GetString(key))
|
|
case reflect.Int:
|
|
conf.SetValue(key, viper.GetInt(key))
|
|
case reflect.Bool:
|
|
conf.SetValue(key, viper.GetBool(key))
|
|
default:
|
|
slog.Error(fmt.Sprintf("unknown key type: %s", keyType))
|
|
}
|
|
}
|
|
}
|
|
|
|
// Utility method for loading a configuration into Viper as defaults
|
|
func LoadToViper(conf JobSearchConfig) {
|
|
flatMap := conf.Flatten()
|
|
for key := range flatMap {
|
|
viper.SetDefault(key, flatMap[key])
|
|
}
|
|
}
|
|
|
|
// Converts configuration to a string in flat dotted format
|
|
func (conf JobSearchConfig) String() string {
|
|
var sb strings.Builder
|
|
for k, v := range conf.Flatten() {
|
|
typ, _ := conf.TypeOf(k)
|
|
sb.WriteString(fmt.Sprint(k, " = ", v, " <", typ, ">\n"))
|
|
}
|
|
return sb.String()
|
|
}
|
|
|
|
// Converts configuration to JSON
|
|
func (conf JobSearchConfig) JSON() string {
|
|
confMap := conf.Map()
|
|
jbytes, _ := json.MarshalIndent(confMap, "", " ")
|
|
return string(jbytes)
|
|
}
|
|
|
|
// Converts configuration to YAML
|
|
func (conf JobSearchConfig) YAML() string {
|
|
confMap := conf.Map()
|
|
ybytes, _ := yaml.Marshal(confMap)
|
|
return string(ybytes)
|
|
}
|