124 lines
2.7 KiB
Go
124 lines
2.7 KiB
Go
package handlers
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import (
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"io"
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"git.defalsify.org/vise.git/db"
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"git.defalsify.org/vise.git/engine"
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"git.defalsify.org/vise.git/persist"
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"git.defalsify.org/vise.git/resource"
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"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
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"git.grassecon.net/urdt/ussd/internal/storage"
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)
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type BaseSessionHandler struct {
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cfgTemplate engine.Config
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rp RequestParser
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rs resource.Resource
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hn *ussd.Handlers
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provider storage.StorageProvider
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}
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func NewBaseSessionHandler(cfg engine.Config, rs resource.Resource, stateDb db.Db, userdataDb db.Db, rp RequestParser, hn *ussd.Handlers) *BaseSessionHandler {
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return &BaseSessionHandler{
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cfgTemplate: cfg,
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rs: rs,
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hn: hn,
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rp: rp,
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provider: storage.NewSimpleStorageProvider(stateDb, userdataDb),
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}
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}
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func(f* BaseSessionHandler) Shutdown() {
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err := f.provider.Close()
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if err != nil {
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logg.Errorf("handler shutdown error", "err", err)
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}
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}
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func(f *BaseSessionHandler) GetEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) engine.Engine {
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en := engine.NewEngine(cfg, rs)
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en = en.WithPersister(pr)
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return en
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}
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func(f *BaseSessionHandler) Process(rqs RequestSession) (RequestSession, error) {
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var r bool
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var err error
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var ok bool
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logg.InfoCtxf(rqs.Ctx, "new request", rqs)
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rqs.Storage, err = f.provider.Get(rqs.Config.SessionId)
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if err != nil {
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logg.ErrorCtxf(rqs.Ctx, "", "storage error", "err", err)
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return rqs, ErrStorage
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}
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f.hn = f.hn.WithPersister(rqs.Storage.Persister)
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eni := f.GetEngine(rqs.Config, f.rs, rqs.Storage.Persister)
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en, ok := eni.(*engine.DefaultEngine)
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if !ok {
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return rqs, ErrEngineType
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}
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en = en.WithFirst(f.hn.Init)
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if rqs.Config.EngineDebug {
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en = en.WithDebug(nil)
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}
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rqs.Engine = en
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r, err = rqs.Engine.Init(rqs.Ctx)
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if err != nil {
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return rqs, err
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}
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if r && len(rqs.Input) > 0 {
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r, err = rqs.Engine.Exec(rqs.Ctx, rqs.Input)
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}
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if err != nil {
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return rqs, err
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}
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rqs.Continue = r
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return rqs, nil
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}
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func(f *BaseSessionHandler) Output(rqs RequestSession) (RequestSession, error) {
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var err error
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_, err = rqs.Engine.WriteResult(rqs.Ctx, rqs.Writer)
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return rqs, err
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}
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func (f *BaseSessionHandler) AtOutput(rqs RequestSession) (RequestSession, error) {
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var err error
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var prefix string
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if rqs.Continue {
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prefix = "CON "
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} else {
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prefix = "END "
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}
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_, err = io.WriteString(rqs.Writer, prefix)
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if err != nil {
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return rqs, err
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}
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_, err = rqs.Engine.WriteResult(rqs.Ctx, rqs.Writer)
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return rqs, err
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}
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func(f *BaseSessionHandler) Reset(rqs RequestSession) (RequestSession, error) {
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defer f.provider.Put(rqs.Config.SessionId, rqs.Storage)
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return rqs, rqs.Engine.Finish()
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}
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func(f *BaseSessionHandler) GetConfig() engine.Config {
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return f.cfgTemplate
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}
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func(f *BaseSessionHandler) GetRequestParser() RequestParser {
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return f.rp
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}
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