Files
gluetun/internal/configuration/sources/mux/reader.go
2022-02-20 03:04:16 +00:00

67 lines
1.6 KiB
Go

package mux
import (
"fmt"
"strings"
"github.com/qdm12/gluetun/internal/configuration/settings"
"github.com/qdm12/gluetun/internal/configuration/sources"
)
var _ sources.Source = (*Reader)(nil)
type Reader struct {
sources []sources.Source
}
func New(sources ...sources.Source) *Reader {
return &Reader{
sources: sources,
}
}
func (r *Reader) String() string {
sources := make([]string, len(r.sources))
for i := range r.sources {
sources[i] = r.sources[i].String()
}
return strings.Join(sources, ", ")
}
// Read reads the settings for each source, merging unset fields
// with field set by the next source.
// It then set defaults to remaining unset fields.
func (r *Reader) Read() (settings settings.Settings, err error) {
for _, source := range r.sources {
settingsFromSource, err := source.Read()
if err != nil {
return settings, fmt.Errorf("reading from %s: %w", source, err)
}
settings.MergeWith(settingsFromSource)
}
settings.SetDefaults()
return settings, nil
}
// ReadHealth reads the health settings for each source, merging unset fields
// with field set by the next source.
// It then set defaults to remaining unset fields, and validate
// all the fields.
func (r *Reader) ReadHealth() (settings settings.Health, err error) {
for _, source := range r.sources {
settingsFromSource, err := source.ReadHealth()
if err != nil {
return settings, fmt.Errorf("reading from %s: %w", source, err)
}
settings.MergeWith(settingsFromSource)
}
settings.SetDefaults()
err = settings.Validate()
if err != nil {
return settings, err
}
return settings, nil
}