ussd/internal/storage/storageservice.go

104 lines
2.6 KiB
Go

package storage
import (
"context"
"fmt"
"os"
"path"
"git.defalsify.org/vise.git/db"
fsdb "git.defalsify.org/vise.git/db/fs"
"git.defalsify.org/vise.git/persist"
"git.defalsify.org/vise.git/resource"
"git.defalsify.org/vise.git/logging"
)
var (
logg = logging.NewVanilla().WithDomain("storage")
)
type StorageService interface {
GetPersister(ctx context.Context) (*persist.Persister, error)
GetUserdataDb(ctx context.Context) db.Db
GetResource(ctx context.Context) (resource.Resource, error)
EnsureDbDir() error
}
type MenuStorageService struct{
dbDir string
resourceDir string
resourceStore db.Db
stateStore db.Db
userDataStore db.Db
}
func NewMenuStorageService(dbDir string, resourceDir string) *MenuStorageService {
return &MenuStorageService{
dbDir: dbDir,
resourceDir: resourceDir,
}
}
func (ms *MenuStorageService) GetPersister(ctx context.Context) (*persist.Persister, error) {
ms.stateStore = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, "state.gdbm")
err := ms.stateStore.Connect(ctx, storeFile)
if err != nil {
return nil, err
}
pr := persist.NewPersister(ms.stateStore)
logg.TraceCtxf(ctx, "menu storage service", "persist", pr, "store", ms.stateStore)
return pr, nil
}
func (ms *MenuStorageService) GetUserdataDb(ctx context.Context) (db.Db, error) {
ms.userDataStore = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, "userdata.gdbm")
err := ms.userDataStore.Connect(ctx, storeFile)
if err != nil {
return nil, err
}
return ms.userDataStore, nil
}
func (ms *MenuStorageService) GetResource(ctx context.Context) (resource.Resource, error) {
ms.resourceStore = fsdb.NewFsDb()
err := ms.resourceStore.Connect(ctx, ms.resourceDir)
if err != nil {
return nil, err
}
rfs := resource.NewDbResource(ms.resourceStore)
return rfs, nil
}
func (ms *MenuStorageService) GetStateStore(ctx context.Context) (db.Db, error) {
if ms.stateStore != nil {
panic("set up store when already exists")
}
ms.stateStore = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, "state.gdbm")
err := ms.stateStore.Connect(ctx, storeFile)
if err != nil {
return nil, err
}
return ms.stateStore, nil
}
func (ms *MenuStorageService) EnsureDbDir() error {
err := os.MkdirAll(ms.dbDir, 0700)
if err != nil {
return fmt.Errorf("state dir create exited with error: %v\n", err)
}
return nil
}
func (ms *MenuStorageService) Close() error {
errA := ms.stateStore.Close()
errB := ms.userDataStore.Close()
errC := ms.resourceStore.Close()
if errA != nil || errB != nil || errC != nil {
return fmt.Errorf("%v %v %v", errA, errB, errC)
}
return nil
}