M1cr0S Installer

--M1cr0S Installer
term.clear()
print("M1cr0S Installation\n")
local apidir, link = "/files", "YfV1CAHb"
if fs.exists("/disk/m1") ~= true then
    print("M1cr0API not found, Download now? (http_api must be enabled)")
    if string.lower(read()) == "yes" then
        print("Downloading...")
        shell.run("pastebin", "get", link, "/disk/m1")
    else error("Please put m1cr0api in /disk/m1") end
end
print("Select a Program (1, 2 or 3):\n")
print("1. Server")
print("2. MEMail Client")
print("3. Door Locker")
local choice = tonumber(read())
if fs.exists("/startup") then fs.delete("/startup") end
if choice < 1 or choice > 3 then error("Invalid Choice, please type 1, 2 or 3")
elseif choice == 1 then
    print("Please Wait, Floppy will eject momentarily...")
    fs.copy("/disk/server", "/startup")
    if fs.exists(apidir) ~= true then fs.makeDir(apidir) end
    if fs.exists(apidir.."/m1") then fs.delete(apidir.."/m1") end
    fs.copy("/disk/m1", apidir.."/m1")
    shell.run(apidir.."/m1")
elseif choice == 2 then
    print("Please Wait, Floppy will eject momentarily...")
    fs.copy("/disk/memail", "/startup")
    if fs.exists("/m1") then fs.delete("/m1") end
    fs.copy("/disk/m1", "/m1")
    shell.run("/m1")
elseif choice == 3 then
    print("Please Wait, Floppy will eject momentarily...")
    fs.copy("/disk/door", "/startup")
    if fs.exists("/m1") then fs.delete("/m1") end
    fs.copy("/disk/m1", "/m1")
    shell.run("/m1")
end
disk.eject(getperipheral("drive"))
os.reboot()