boltrest/boltrest-server/main.go

130 lines
2.7 KiB
Go

package main
import (
"errors"
"math/rand"
"os"
"syscall"
"time"
"github.com/br0xen/boltrest"
"github.com/nsf/termbox-go"
)
var adminDB *boltrest.DB
func main() {
initialize()
adminDB = boltrest.Open("admin.db")
err := termbox.Init()
if err != nil {
panic(err)
}
defer termbox.Close()
stl := getDefaultStyle()
termbox.SetOutputMode(termbox.Output256)
mainLoop(stl)
}
func mainLoop() {
screens := defaultScreens()
displayScreen := screens[NasomiScreenIndex]
layoutAndDrawScreen(displayScreen, stl)
eventChan := make(chan termbox.Event)
go readUserInput(eventChan)
go sendNoneEvent(eventChan)
for {
event := <-eventChan
if event.Type == termbox.EventKey {
if event.Key == termbox.KeyCtrlZ {
process, _ := os.FindProcess(os.Getpid())
termbox.Close()
process.Signal(syscall.SIGSTOP)
termbox.Init()
} else if event.Key == termbox.KeyCtrlC {
termbox.Close()
os.Exit(0)
}
newScreenIndex := displayScreen.handleKeyEvent(event)
if newScreenIndex < len(screens) {
displayScreen = screens[newScreenIndex]
layoutAndDrawScreen(displayScreen, stl)
} else {
termbox.Close()
break
}
}
if event.Type == termbox.EventResize || event.Type == termbox.EventNone {
layoutAndDrawScreen(displayScreen, stl)
}
}
}
func readUserInput(e chan termbox.Event) {
for {
e <- termbox.PollEvent()
}
}
func sendNoneEvent(e chan termbox.Event) {
for {
time.Sleep(time.Second)
e <- termbox.Event{Type: termbox.EventNone}
}
}
func initialize() error {
// Make sure that the necessary files/directories are in place
var tstDir *os.File
var tstDirInfo os.FileInfo
var err error
if tstDir, err = os.Open("dbs"); err != nil {
if err = os.Mkdir("dbs", 0755); err != nil {
return err
}
if tstDir, err = os.Open("dbs"); err != nil {
return err
}
}
if tstDirInfo, err = tstDir.Stat(); err != nil {
return err
}
if !tstDirInfo.IsDir() {
return errors.New("'dbs' exists and is not a directory")
}
// We were able to open the db path and it was a directory
return nil
}
const (
// ServerScreenIndex is the index
ServerScreenIndex = iota
// AboutScreenIndex The idx number for the 'About' Screen
AboutScreenIndex
// ExitScreenIndex The idx number for Exiting
ExitScreenIndex
)
func defaultScreens() []Screen {
serverScreen := ServerScreen{}
aboutScreen := AboutScreen{}
screens := []Screen{
&serverScreen,
&aboutScreen,
}
return screens
}
const keyChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
func generateAPIKey() string {
b := make([]byte, 34)
for i := range b {
if i%5 == 4 {
b[i] = '-'
} else {
b[i] = keyChars[rand.Int63()%int64(len(keyChars))]
}
}
return string(b)
}