package owrt

import "fmt"

// UCINetworkInterface describes uci network inteface (uci show network)
type UCINetworkInterface struct {
	UciClient *UCI
	Name      string
	Proto     string
	IFName    string
	IPAddr    string
	Netmask   string
	DNS       string
	IFType    string
	Metric    string
	DHCP      *UCIDHCPConf
}

// NewUCINetworkInterface builds a new UCIWirelessConf instance
func NewUCINetworkInterface(uci *UCI) *UCINetworkInterface {
	return &UCINetworkInterface{
		UciClient: uci,
		DHCP: &UCIDHCPConf{
			UciClient: uci,
		},
	}
}

// Create add a new entry for wifi interface in UCI Configuration
func (ni *UCINetworkInterface) Create() *Action {
	uci := ni.UciClient
	conf := make(map[string]string)

	conf["proto"] = ni.Proto
	conf["ifname"] = ni.IFName
	conf["ipaddr"] = ni.IPAddr
	conf["netmask"] = ni.Netmask
	conf["dns"] = ni.DNS
	conf["type"] = ni.IFType
	conf["metric"] = ni.Metric

	result := uci.Set(fmt.Sprintf("network.%s", ni.Name), "interface")
	if result.ReturnCode != 0 {
		return result
	}
	for key, value := range conf {
		result := uci.Set(fmt.Sprintf("network.%s.%s", ni.Name, key), value)
		if result.ReturnCode != 0 {
			return result
		}
	}

	if ni.DHCP.Name != "" {
		dhCreate := ni.DHCP.Create()
		if dhCreate.ReturnCode != 0 {
			return dhCreate
		}
	}

	return &Action{
		CommandResult: &CommandResult{
			Stdout:     "",
			Stderr:     "",
			ReturnCode: 0,
		},
	}
}

// Save commit and relaod configuration (writes it to files !)
func (ni *UCINetworkInterface) Save() *Action {
	return ni.UciClient.Save()
}

// Delete remove wifi interface from UCI Configuration
func (ni *UCINetworkInterface) Delete() *Action {
	uci := ni.UciClient

	if ni.DHCP.Name != "" {
		toDelete := fmt.Sprintf("dhcp.%s", ni.Name)
		del := uci.Delete(toDelete)
		if del.ReturnCode != 0 {
			return del
		}
	}

	toDelete := fmt.Sprintf("network.%s", ni.Name)
	del := uci.Delete(toDelete)
	if del.ReturnCode != 0 {
		return del
	}

	return uci.Commit()
}

// Update add a new entry for wifi interface in UCI Configuration
func (ni *UCINetworkInterface) Update() *Action {
	uci := ni.UciClient
	ni.Delete()
	create := ni.Create()
	if create.ReturnCode != 0 {
		return create
	}
	return uci.Commit()
}