package openwrt

import (
	"fmt"
	"time"
)

// Action is the result of an UCI action output and return code
type Action struct {
	*CommandResult
}

// UCI "Object"
type UCI struct {
	exec     Executor
	Wireless *UCIWirelessConf
}

// NewUCI return an UCI instance to interact with UCI
func NewUCI() *UCI {
	exec := &localExecutor{}
	wireless := &UCIWirelessConf{}
	return &UCI{exec, wireless}
}

// NewUCIWithExecutor returns a UCI Instance an gives you the ability to provide
// a different command executor than the default one.
func NewUCIWithExecutor(exec Executor) *UCI {
	wireless := &UCIWirelessConf{}
	return &UCI{exec, wireless}
}

// uciRun, private method to run the UCI command
func (u *UCI) uciRun(param ...string) *Action {
	cmd := "/sbin/uci"
	res := u.exec.Run(cmd, param...)
	return &Action{res}
}

// Add add an entry to UCI configuration, specify the Module and the value
func (u *UCI) Add(module string, name string) *Action {
	commandRes := u.exec.Run("uci add", module, name)
	return &Action{commandRes}
}

// Delete delete an entry from UCI configuration specify the entry name
func (u *UCI) Delete(entry string) *Action {
	return u.uciRun("delete", entry)
}

// Set set a value ton an UCI configuration entry
func (u *UCI) Set(entry string, value string) *Action {
	return u.uciRun("set", fmt.Sprintf("%s=%s", entry, value))
}

// Commit the recent actions to UCI
func (u *UCI) Commit() *Action {
	res := u.uciRun("commit")
	return res
}

// Reload reload uci configuration
func (u *UCI) Reload() *Action {
	cmdResult := u.exec.Run("reload_config")

	time.Sleep(5 * time.Second)

	return &Action{cmdResult}
}

// Show returns the output of uci show command
func (u *UCI) Show(target string) *Action {
	cmdRes := u.uciRun("show", target)
	return cmdRes
}

// AddWireless Create a new Wireless entry in UCI configuration
func (u *UCI) AddWireless() *Action {
	res := u.uciRun("add", "wireless", "wifi-iface")
	return res
}

// LoadWirelessConf scan UCI configuration and loads saved Wireless configuration
func (u *UCI) LoadWirelessConf() {
	u.Wireless = NewUCIWirelessConf(u)
	u.Wireless.Load()
}

// GetWifiIface returns the system name of the Interface
func (u *UCI) GetWifiIface(idx int) *UCIWirelessInterface {
	ifaces := u.Wireless.Interfaces
	if len(ifaces) < idx {
		return nil
	}
	return ifaces[idx]
}

// GetWifiIfaces wifi interfaces in configuration
func (u *UCI) GetWifiIfaces() []*UCIWirelessInterface {
	return u.Wireless.Interfaces
}

// GetWifiDevices returns the wifi devices in configuration
func (u *UCI) GetWifiDevices() []map[string]string {
	return u.Wireless.Devices
}