Northbridge Terminal Install

local northbridgeBuildAPI = "http://builds.northbridge.dx.am/"
local x, y = term.getSize()

local function putFilesFromDirArray(array, build, basePath)
    for k,v in pairs(array) do
        if (type(array[k]) == "string") then
            if (basePath ~= nil) then
                v = basePath.."/"..v
            end
            fileData = http.get(northbridgeBuildAPI..build.."/"..v)
            if (fileData ~= nil) then
                local file = fs.open(v, "w")
                file.write(fileData.readAll(), "w")
                file.close()
            end
        else
            if (basePath ~= nil) then
                k = basePath.."/"..k
            end
            fs.makeDir(k)
            putFilesFromDirArray(v, build, k)
        end
    end
end

local function arrayToDir(dirArray, dir)
    if (dir == nil) then dir = "" end
    for k,v in pairs(dirArray) do
        print(dir.."/"..k..": "..v.type)
        if (v.type == "file") then
            if (not fs.exists(dir)) then fs.makeDir(dir) end
            local file = fs.open(dir.."/"..k,'w')
            file.write(v.contents)
            file.close()
        elseif (v.type == "dir") then
            fs.makeDir(dir.."/"..k)
            arrayToDir(v.contents,dir.."/"..k)
        end
    end
end

local function firstToUpper(str)
    return (str:gsub("^%l", string.upper))
end

local function split(self, inSplitPattern, outResults )
    if not outResults then
        outResults = { }
    end
    local theStart = 1
    local theSplitStart, theSplitEnd = string.find( self, inSplitPattern, theStart )
    while theSplitStart do
        table.insert( outResults, string.sub( self, theStart, theSplitStart-1 ) )
        theStart = theSplitEnd + 1
        theSplitStart, theSplitEnd = string.find( self, inSplitPattern, theStart )
    end
    table.insert( outResults, string.sub( self, theStart ) )
    return outResults
end

local function splitToLines(longString)
    if (#longString > x) then
        local chars = split(longString,"")
        local lines = (#chars+3)/x
        for i=1,#lines do
            chars:insert(i*x,"\n   ")
        end
        local outString = ""
        for i=1,#chars do
            outString = outString..chars[i]
        end
        return outString
    else
        return longString
    end
end

local function pagedPrint(input)
    local linedinput = split(input,"\n")
    local x,y = term.getSize()
    term.setCursorPos(1,2)
    for i=1,y-2 do
        print(linedInput[i])
    end
    print("Press a key to continue")
    for i=y+1,#linedInput-y do
        term.setCursorPos(1,1)
        term.setTextColor(colors.white)
        if (term.isColor()) then term.setBackgroundColor(colors.lightGray) end
        for i=1, x do
            write(" ")
        end
        term.setCursorPos(1, 1)
        print("Northbridge Terminal OS Build Info:")
        if (term.isColor()) then term.setBackgroundColor(colors.black) end
        os.pullEvent("key")
        term.setCursorPos(1,i)
        print(linedInput[i])
    end
end

write("Getting build info... ")
builds = http.get(northbridgeBuildAPI.."build.php?cmd=getBuilds&versions=true&changelogs=true")
if (builds ~= nil) then
    builds = textutils.unserialize(builds.readAll())
else
    error("can't access the Northbridge Network Build API")
end
local outer = true
while (outer) do
    term.clear()
    term.setCursorPos(1, 1)
    term.setTextColor(colors.white)
    --[=[if (term.isColor()) then term.setBackgroundColor(colors.lightGray) end
    for i=1, x do
        write(" ")
    end
    term.setCursorPos(1, 1)
    print("Northbridge Terminal OS Build Info:")
    if (term.isColor()) then term.setBackgroundColor(colors.black) end
    local info = ""
    for k, v in pairs(builds.msg) do
        if (type(k) ~= "number") then
            info = info..firstToUpper(k)..":".."\n"
            if (v.version ~= nil) then
                info = info.." Version: "..v.version.."\n"
            end
            if (v.changelog ~= nil) then
                info = info.." Changelog:".."\n"
                for i=1, #v.changelog do
                    --print(" "..v.changelog[i])
                    info = info.." "..splitToLines(v.changelog[i]).."\n"
                end
            end
        end
    end
    pagedPrint(info)
    --[[term.setCursorPos(1, y)
    write("Press a key to continue.")
    os.pullEvent("key")]]
    sleep(0)]=]
    local inner = true
    while (inner) do
        term.clear()
        term.setCursorPos(1, 1)
        term.setTextColor(colors.white)
        if (term.isColor()) then term.setBackgroundColor(colors.lightGray) end
        for i=1, x do
            write(" ")
        end
        term.setCursorPos(1, 1)
        print("Northbridge Terminal OS Build Selection:")
        term.setBackgroundColor(colors.black)
        print("Which build would you like to install?")
        local cursorPos = {term.getCursorPos(1,1)}
        for i = 1, #builds.msg do
            print(i.."> "..firstToUpper(builds.msg[i]))
        end
        --print(1+#builds.msg.."> ".."Show previous page")
        print(2+#builds.msg.."> ".."Cancel")
        reply = tonumber(read())
        if (reply == nil) or (reply < 0) or (reply > #builds.msg+2) then
            print("Invalid reply")
            sleep(2)
            term.setCursorPos(cursorPos[1], cursorPos[2])
        elseif (reply == #builds.msg+1) then
            inner = false
        elseif (reply == #builds.msg+2) then
            term.clear()
            term.setCursorPos(1,1)
            print("Nevermind then...")
            inner = false
            outer = false
        else
            print("Getting build files...")
            buildData = http.get(northbridgeBuildAPI.."build.php?cmd=getBuildFiles&build="..builds.msg[reply])
            if (buildData == nil) then
                error("can't access the Northbridge Network Build API")
            end
            buildData = textutils.unserialize(buildData.readAll())
            if (fs.exists("/startup")) then
                fs.move("/startup","/autorun")
            end
            putFilesFromDirArray(buildData.msg, builds.msg[reply])

            if (fs.exists("files")) then
                local files = fs.open("files",'r')
                arrayToDir(textutils.unserialise(files.readAll()))
                files.close()
                fs.delete("files")
            end

            local file = fs.open("/northbridge/build", "w")
            file.write(builds.msg[reply])
            file.close()

            fs.delete("json")
            fs.delete("version")
            print("Rebooting...")
            sleep(2)
            os.reboot()
        end
    end
end