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41 results

main.go

Blame
  • implementation.go 1.82 KiB
    ////////////////////////////////////////////////////////////////////////////////
    // Copyright © 2022 xx foundation                                             //
    //                                                                            //
    // Use of this source code is governed by a license that can be found in the  //
    // LICENSE file.                                                              //
    ////////////////////////////////////////////////////////////////////////////////
    
    //go:build js && wasm
    
    package main
    
    import (
    	"encoding/json"
    	"github.com/hack-pad/go-indexeddb/idb"
    	"github.com/pkg/errors"
    	"gitlab.com/elixxir/wasm-utils/utils"
    	"gitlab.com/elixxir/xxdk-wasm/indexedDb/impl"
    	"syscall/js"
    )
    
    // stateModel implements [ClientState] interface backed by IndexedDb.
    // NOTE: This model is NOT thread safe - it is the responsibility of the
    // caller to ensure that its methods are called sequentially.
    type stateModel struct {
    	db *idb.Database
    }
    
    func (s *stateModel) Get(key string) ([]byte, error) {
    	result, err := impl.Get(s.db, stateStoreName, js.ValueOf(key))
    	if err != nil {
    		return nil, err
    	}
    
    	stateObj := &State{}
    	err = json.Unmarshal([]byte(utils.JsToJson(result)), stateObj)
    	if err != nil {
    		return nil, err
    	}
    
    	return stateObj.Value, err
    }
    
    func (s *stateModel) Set(key string, value []byte) error {
    	state := &State{
    		Id:    key,
    		Value: value,
    	}
    
    	// Convert to jsObject
    	newStateJSON, err := json.Marshal(state)
    	if err != nil {
    		return errors.Errorf("Unable to marshal State: %+v", err)
    	}
    	stateObj, err := utils.JsonToJS(newStateJSON)
    	if err != nil {
    		return errors.Errorf("Unable to marshal State: %+v", err)
    	}
    
    	// Store State to database
    	_, err = impl.Put(s.db, stateStoreName, stateObj)
    	if err != nil {
    		return errors.Errorf("Unable to put State: %+v\n%s",
    			err, newStateJSON)
    	}
    	return nil
    }