package diagram

import (
	"errors"
	"fmt"
	"sync"
)

// anchorValueOverview define struct of storage all anchor value
var anchorValueOverview sync.Map

// GetAnchorValue define func of get circuit diagram data by global uuid
func GetAnchorValue(uuid string) (string, error) {
	value, ok := diagramsOverview.Load(uuid)
	if !ok {
		return "", fmt.Errorf("can not find anchor value by global uuid:%s", uuid)
	}
	anchorValue, ok := value.(string)
	if !ok {
		return "", errors.New("convert to string failed")
	}
	return anchorValue, nil
}

// UpdateAnchorValue define func of update anchor value by global uuid and anchor name
func UpdateAnchorValue(uuid string, anchorValue string) bool {
	_, result := anchorValueOverview.Swap(uuid, anchorValue)
	return result
}

// StoreAnchorValue define func of store anchor value with global uuid and anchor name
func StoreAnchorValue(uuid string, anchorValue string) {
	anchorValueOverview.Store(uuid, anchorValue)
	return
}

// DeleteAnchorValue define func of delete anchor value with global uuid
func DeleteAnchorValue(uuid string) {
	anchorValueOverview.Delete(uuid)
	return
}