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firebase.go
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firebase.go
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package firebase
import (
"fmt"
"os"
"strings"
"sync"
)
type App struct {
name string
creds *Credentials
}
const (
defaultAppName = "[DEFAULT]"
)
var apps = struct {
sync.RWMutex
m map[string]*App
}{
m: make(map[string]*App),
}
func GetApp(name string) (*App, error) {
name = normalizeName(name)
if name == "" {
name = defaultAppName
}
apps.RLock()
defer apps.RUnlock()
app, ok := apps.m[name]
if !ok {
return nil, fmt.Errorf("App %s not yet initialized!", name)
}
return app, nil
}
func New(options ...Option) (*App, error) {
cfg := defaultConfig()
for _, option := range options {
if err := option(cfg); err != nil {
return nil, err
}
}
if cfg.Credentials == nil {
r, err := os.Open(cfg.CredentialsPath)
if err != nil {
return nil, err
}
c, err := loadCredential(r)
if err != nil {
return nil, err
}
cfg.Credentials = c
}
app := &App{
name: cfg.Name,
creds: cfg.Credentials,
}
apps.Lock()
defer apps.Unlock()
if _, ok := apps.m[app.name]; ok {
return nil, fmt.Errorf("App %s already exists!", app.name)
}
apps.m[app.name] = app
return app, nil
}
func (a *App) Auth() *Auth {
return &Auth{
app: a,
}
}
func (a *App) Name() string {
return a.name
}
func normalizeName(name string) string {
return strings.TrimSpace(name)
}