115 lines
2.2 KiB
Go
115 lines
2.2 KiB
Go
package simplectx
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import (
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"blackforestbytes.com/simplecloudnotifier/db"
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"context"
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"errors"
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"github.com/rs/zerolog/log"
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"gogs.mikescher.com/BlackForestBytes/goext/sq"
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"time"
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)
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type SimpleContext struct {
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inner context.Context
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cancelFunc context.CancelFunc
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cancelled bool
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transaction sq.Tx
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}
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func CreateSimpleContext(innerCtx context.Context, cancelFn context.CancelFunc) *SimpleContext {
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return &SimpleContext{
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inner: innerCtx,
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cancelFunc: cancelFn,
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cancelled: false,
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transaction: nil,
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}
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}
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func (sc *SimpleContext) Deadline() (deadline time.Time, ok bool) {
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return sc.inner.Deadline()
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}
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func (sc *SimpleContext) Done() <-chan struct{} {
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return sc.inner.Done()
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}
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func (sc *SimpleContext) Err() error {
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return sc.inner.Err()
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}
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func (sc *SimpleContext) Value(key any) any {
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return sc.inner.Value(key)
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}
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func (sc *SimpleContext) Cancel() {
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sc.cancelled = true
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if sc.transaction != nil {
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log.Error().Msg("Rollback transaction")
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err := sc.transaction.Rollback()
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if err != nil {
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panic("failed to rollback transaction: " + err.Error())
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}
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sc.transaction = nil
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}
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if sc.cancelFunc != nil {
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sc.cancelFunc()
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}
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}
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func (sc *SimpleContext) GetOrCreateTransaction(db db.DatabaseImpl) (sq.Tx, error) {
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if sc.cancelled {
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return nil, errors.New("context cancelled")
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}
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if sc.transaction != nil {
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return sc.transaction, nil
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}
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tx, err := db.BeginTx(sc)
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if err != nil {
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return nil, err
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}
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sc.transaction = tx
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return tx, nil
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}
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func (sc *SimpleContext) CommitTransaction() error {
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if sc.transaction == nil {
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return nil
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}
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err := sc.transaction.Commit()
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if err != nil {
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return err
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}
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sc.transaction = nil
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return nil
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}
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func (sc *SimpleContext) RollbackTransaction() {
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if sc.transaction == nil {
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return
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}
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err := sc.transaction.Rollback()
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if err != nil {
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log.Err(err).Stack().Msg("Failed to rollback transaction")
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panic(err)
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}
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sc.transaction = nil
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return
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}
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func Run[TResp any](outctx context.Context, f func(ctx db.TxContext) (TResp, error)) (TResp, error) {
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sctx := CreateSimpleContext(outctx, nil)
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defer sctx.Cancel()
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res, err := f(sctx)
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if err != nil {
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return *new(TResp), err
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}
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err = sctx.CommitTransaction()
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if err != nil {
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return *new(TResp), err
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}
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return res, nil
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}
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