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Gastenboek/menu.go
2013-10-22 00:10:52 +02:00

96 lines
4.9 KiB
Go

package main
import (
"fmt"
"math"
"os"
"os/exec"
"strconv"
"strings"
)
const (
ascii string = " -hMMMMMMMMMMMd:\n -hMMMMMMMMMMMd: \n-:::::::::::: :::::::::::::`.::::::::::::::::::::::::::.-hMMMMMMMMMMMd: \n`oNMMMMMMMMMM.MMMMMMMMMMMMM.ssmMMMMMMMMMMMMMMMMMMMMMMdshMMMMMMMMMMMd: \n `oNMMMMMMMM.MMMMMMMMMMMMM.NNysmMMMMMMMMMMMMMMMMMMmshMMMMMMMMMMMd: \n `oNMMMMMM.MMMMMMMMMMMMM.NMMNysmMMMMMMMMMMMMMMmshMMMMMMMMMMMd/ \n `oNMMMM.MMMMMMMMMMMMM.NMMMMNysmMMMMMMMMMMm+ohddddddddddh/` \n `oNMM.MMMMMMMMMMMMM.NMMMMMMNysmMMMMMMm/` ```````````` \n .oN.MMMMMMMMMMMMM.NMMMMMMMMNysmMMm/` \n . :::::::::::::`NMMMMMMMMMMNys+` \n NMMMMMMMMMMMMNo. \n NMMMMMMMMMMMMMMmo` \n NMMMMMMMMMMMMMMMMmo` \n NMMMMMMMMMMMMMMMMMy. \n NMMMMMMMMMMMMMMMh- \n NMMMMMMMMMMMMMh: \n NMMMMMMMMMMMh: \n NMMMMMMMMMh: \n NMMMMMMMdyo \n NMMMMMdydMy \n NMMMdsdMMMy \n NMdsdMMMMMy \n dsdMMMMMMMy \n :hMMMMMMMMMy \n :hMMMMMMMMMMMy \n -hMMMMMMMMMMMMMy \n -hMMMMMMMMMMMMMMMy \n -yMMMMMMMMMMMMMMMMMy \n :dMMMMMMMMMMMMMMMMMy \n :dMMMMMMMMMMMMMMMy \n /dMMMMMMMMMMMMMy \n /dMMMMMMMMMMMy-. \n /dMMMMMMMMMy+Ns. \n /dMMMMMMMy+MMNs. \n /mMMMMMy+MMMMNs. \n /mMMMy+MMMMMMMs. \n /mMy+MMMMMMMMMs. \n /++MMMMMMMMMMMy. "
asciiLen int = 75
tekst string = "Thalia Constitutieborrel Gastenboek\n1) Schrijf een nieuw bericht.\n2) Lees oude berichten."
)
var (
menu string = ""
menuwidth int = 0
Message string = ""
)
func terminalSize() (width, height int) {
cmd := exec.Command("stty", "size")
cmd.Stdin = os.Stdin
out, _ := cmd.Output()
sizes := strings.Trim(string(out), "\n")
size := strings.Split(sizes, " ")
width, _ = strconv.Atoi(size[1])
height, _ = strconv.Atoi(size[0])
return width, height
}
func clear() {
_, height := terminalSize()
fmt.Printf("%v", strings.Repeat("\n", height+1))
}
func generateMenu() string {
var width, height int = terminalSize()
if menu == "" && width != menuwidth {
menuwidth = width
if width >= asciiLen+4 {
var content []string = strings.Split(ascii, "\n")
var options []string = strings.Split(tekst, "\n")
content = append(content, make([]string, ((height-4)-len(content)-len(options))/2)...)
content = append(content, options...)
content = append(content, make([]string, ((height-4)-len(content)-len(options))/2)...)
menu += strings.Repeat("-", width-1) + "\n"
for _, value := range content {
var length int = len(value)
menu += "|"
menu += strings.Repeat(" ", int(math.Floor(float64((width-length-3)/2.0))))
menu += value
menu += strings.Repeat(" ", int(math.Ceil(float64((width-length-2)/2.0))))
menu += "|\n"
}
menu += strings.Repeat("-", width-1) + "\n"
} else {
menu = tekst
}
}
return menu
}
func showMenu() {
for {
clear()
fmt.Print(generateMenu())
fmt.Println(Message)
fmt.Print("Maak uw keuze: ")
var i int
fmt.Scan(&i)
switch i {
default:
Message = "Was dat een keuze? Ik dacht van niet, probeer maar opnieuw!"
case 1:
if makeEntry() {
Message = ""
} else {
Message = "Something went terribly wrong! Wat heb je nou weer gedaan??"
}
case 2:
viewEntry()
case 88888888:
os.Exit(0)
}
}
}