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package service
import (
"fmt"
"os"
"path"
"path/filepath"
"time"
"git.server.ky/slackcoder/mirror/internal"
"github.com/BurntSushi/toml"
)
type Duration struct {
time.Duration
}
func DurationRef(v time.Duration) *Duration {
return &Duration{v}
}
func (s Duration) MarshalText() ([]byte, error) {
return []byte(s.Duration.String()), nil
}
func (s *Duration) UnmarshalText(text []byte) error {
v, err := time.ParseDuration(string(text))
if err != nil {
return err
}
*s = Duration{v}
return nil
}
// Global parameters
type GlobalConfig struct {
MaxInterval *Duration `toml:"max-interval"`
MinInterval *Duration `toml:"min-interval"`
}
type Config struct {
GlobalConfig `toml:"global"`
Mirrors []*Mirror `toml:"mirrors,omitempty"`
}
func (c *Config) String() string {
return internal.MustTOML(c)
}
var DefaultConfig = Config{
GlobalConfig: GlobalConfig{
MaxInterval: DurationRef(24 * time.Hour),
MinInterval: DurationRef(time.Hour),
},
}
// Read the given configuration file.
func ReadConfig(fp string) (*Config, error) {
var config Config
f, err := os.Open(fp)
if err != nil {
return nil, err
}
defer f.Close()
_, err = toml.NewDecoder(f).Decode(&config)
if err != nil {
return nil, fmt.Errorf("loading configuration file: %w", err)
}
return &config, nil
}
// Read all configuration in the given directory.
func ReadConfigDir(fp string) (*Config, error) {
var cfg Config
confDPath := path.Join(path.Join(fp, "conf.d"))
confDDir, err := os.ReadDir(confDPath)
if os.IsNotExist(err) {
// No directory is an empty one.
return &Config{}, nil
} else if err != nil {
return nil, err
}
for _, entry := range confDDir {
if filepath.Ext(entry.Name()) != ".toml" {
continue
}
entryCfg, err := ReadConfig(filepath.Join(confDPath, entry.Name()))
if err != nil {
return nil, err
}
cfg.Append(entryCfg)
}
return &cfg, nil
}
// Apply the given configuration parameters.
func (c *Config) Append(src *Config) {
if src.MaxInterval != nil {
c.MaxInterval = src.MaxInterval
}
if src.MinInterval != nil {
c.MinInterval = src.MinInterval
}
c.Mirrors = append(c.Mirrors, src.Mirrors...)
}
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