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implement postgres for the state store

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This commit is contained in:
Alfred Kamanda 2024-10-19 15:27:23 +03:00
parent f13f5996c1
commit a40fc37da4
Signed by: Alfred-mk
GPG Key ID: 7EA3D01708908703
1 changed files with 50 additions and 31 deletions
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81
internal/storage/storageservice.go
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@ -53,40 +53,58 @@ func NewMenuStorageService(dbDir string, resourceDir string) *MenuStorageService
}
}
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) {
func (ms *MenuStorageService) getOrCreateDb(ctx context.Context, existingDb db.Db, fileName string) (db.Db, error) {
database, ok := ctx.Value("Database").(string)
if !ok {
return nil, fmt.Errorf("failed to select the database")
}
if database == "postgres" {
ms.userDataStore = NewPostgresDb()
connStr := buildConnStr()
err := ms.userDataStore.Connect(ctx, connStr)
if err != nil {
return nil, err
}
} else {
ms.userDataStore = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, "userdata.gdbm")
err := ms.userDataStore.Connect(ctx, storeFile)
if err != nil {
return nil, err
}
if existingDb != nil {
return existingDb, nil
}
var newDb db.Db
var err error
if database == "postgres" {
newDb = NewPostgresDb()
connStr := buildConnStr()
err = newDb.Connect(ctx, connStr)
} else {
newDb = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, fileName)
err = newDb.Connect(ctx, storeFile)
}
if err != nil {
return nil, err
}
return newDb, nil
}
func (ms *MenuStorageService) GetPersister(ctx context.Context) (*persist.Persister, error) {
stateStore, err := ms.GetStateStore(ctx)
if err != nil {
return nil, err
}
pr := persist.NewPersister(stateStore)
logg.TraceCtxf(ctx, "menu storage service", "persist", pr, "store", stateStore)
return pr, nil
}
func (ms *MenuStorageService) GetUserdataDb(ctx context.Context) (db.Db, error) {
if ms.userDataStore != nil {
return ms.userDataStore, nil
}
userDataStore, err := ms.getOrCreateDb(ctx, ms.userDataStore, "userdata.gdbm")
if err != nil {
return nil, err
}
ms.userDataStore = userDataStore
return ms.userDataStore, nil
}
@ -102,14 +120,15 @@ func (ms *MenuStorageService) GetResource(ctx context.Context) (resource.Resourc
func (ms *MenuStorageService) GetStateStore(ctx context.Context) (db.Db, error) {
if ms.stateStore != nil {
panic("set up store when already exists")
return ms.stateStore, nil
}
ms.stateStore = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, "state.gdbm")
err := ms.stateStore.Connect(ctx, storeFile)
stateStore, err := ms.getOrCreateDb(ctx, ms.stateStore, "state.gdbm")
if err != nil {
return nil, err
}
ms.stateStore = stateStore
return ms.stateStore, nil
}