package diagram

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

// graphOverview define struct of storage all circuit diagram topologic data
var graphOverview sync.Map

// PrintGrapMap define func of print circuit diagram topologic info data
func PrintGrapMap() {
	graphOverview.Range(func(key, value interface{}) bool {
		fmt.Println(key, value)
		return true
	})
}

// GetGraphMap define func of get circuit diagram topologic data by pageID
func GetGraphMap(pageID int64) (*Graph, error) {
	value, ok := graphOverview.Load(pageID)
	if !ok {
		return nil, fmt.Errorf("can not find graph by pageID:%d", pageID)
	}
	graph, ok := value.(*Graph)
	if !ok {
		return nil, errors.New("convert to graph struct failed")
	}
	return graph, nil
}

// UpdateGrapMap define func of update circuit diagram data by pageID and topologic info
func UpdateGrapMap(pageID int64, graphInfo *Graph) bool {
	_, result := graphOverview.Swap(pageID, graphInfo)
	return result
}

// StoreGraphMap define func of store circuit diagram topologic data with pageID and topologic info
func StoreGraphMap(pageID int64, graphInfo *Graph) {
	graphOverview.Store(pageID, graphInfo)
	return
}

// DeleteGraphMap define func of delete circuit diagram topologic data with pageID
func DeleteGraphMap(pageID int64) {
	graphOverview.Delete(pageID)
	return
}