ComputerCraft christmas music

_G["HyTunes"] = {}
HyTunes["speaker"] = peripheral.find("speaker")
if HyTunes.speaker == null then
    print("Could not find a speaker!")
    return
end
HyTunes["songs"] = {}
HyTunes["Volume"] = 1
HyTunes.songs[1] = {
        ["title"] = "Padoru",
        ["track"] = "minecraft:music_disc.11",
        ["artist"] = "Senzawa"
    }
HyTunes.songs[2] = {
        ["title"] = "Feliz Navidad",
        ["track"] = "minecraft:music_disc.far",
        ["artist"] = "Jose Faliciano"
    }
HyTunes.songs[3] = {
        ["title"] = "Last Christmas",
        ["track"] = "minecraft:music_disc.mall",
        ["artist"] = "Wham!"
    }
HyTunes.songs[4] = {
        ["title"] = "Carol of the Bells",
        ["track"] = "minecraft:music_disc.wait",
        ["artist"] = "Some choir Archie found"
    }
HyTunes.songs[5] = {
        ["title"] = "Beginning to Look a Lot like Christmas",
        ["track"] = "minecraft:music_disc.chirp",
        ["artist"] = "Michael Bubble"
    }
HyTunes.songs[6] = {
        ["title"] = "Rubber Tree",
        ["track"] = "minecraft:music_disc.13",
        ["artist"] = "Duncan Lalna"
    }
HyTunes.songs[7] = {
        ["title"] = "Jingle Bells",
        ["track"] = "minecraft:music_disc.stal",
        ["artist"] = "Kidz Music Official"
    }
HyTunes.songs[8] = {
        ["title"] = "Christmas Time",
        ["track"] = "minecraft:music_disc.pigstep",
        ["artist"] = "The Darkness"
    }
HyTunes.songs[9] = {
        ["title"] = "Christmas Tree",
        ["track"] = "minecraft:music_disc.cat",
        ["artist"] = "Crouch-End Festival Chorus"
    }
HyTunes.songs[10] = {
        ["title"] = "We wish you a merry Christmas",
        ["track"] = "minecraft:music_disc.blocks",
        ["artist"] = "Some Orchestra Archie found"
    }
HyTunes.songs[11] = {
        ["title"] = "Fairytale of New York",
        ["track"] = "minecraft:music_disc.strad",
        ["artist"] = "Pogues"
    }
HyTunes.songs[12] = {
        ["title"] = "The Christmas Song",
        ["track"] = "minecraft:music_disc.ward",
        ["artist"] = "Nat King Cole"
}

HyTunes["currentSong"] = HyTunes.songs[1]

HyTunes["termSize"] = { term.getSize() }

function renderList()
    term.setBackgroundColor(colors.lightGray)
    term.clear()

    paintutils.drawLine(1,1,HyTunes.termSize[1],1,colors.magenta)
    term.setCursorPos(1,1)
    term.setTextColor(colors.black)
    write("HyTunes 0.5")
    for i=1,HyTunes.termSize[2]-1 do
        local color = i % 2 == 1 and colors.cyan or colors.lightBlue
        paintutils.drawLine(1,i+1,HyTunes.termSize[1],i+1,color)
    end

    term.setCursorPos(1,2)
    color = colors.cyan
    for i = 1,#HyTunes.songs do
        name = HyTunes.songs[i].title
        if #name > HyTunes.termSize[1] then
            print(name:sub(1,HyTunes.termSize[1] - 3).."...")
        else
            print(name)
        end
        color = color == colors.lightBlue and colors.cyan or colors.lightBlue
        term.setBackgroundColor(color)
    end

    term.setCursorPos(HyTunes.termSize[1]-2,1)
    for i = 1,3 do
        if HyTunes.Volume == i then
            term.setBackgroundColor(colors.pink)
        else
            term.setBackgroundColor(colors.magenta)
        end
        write(i)
    end

    HyTunes.currentHandler = handleList
end

function breakIntoLines(text)
    if #text > HyTunes.termSize[1] then
        words = {}
        for word in text:gmatch("%w+") do table.insert(words,word) end
        lines = {}
        line = ""
        for _,word in pairs(words) do
            if #line + #word > HyTunes.termSize[1] then
                table.insert(lines, line)
                line = word
            else
                if #line > 0 then line = line.." "..word else line = word end
            end
        end
        if #line > 0 then
            table.insert(lines, line)
        end
        return lines
    else
        return { text }
    end
end

function renderMusic()
    color = colors.cyan
    term.setBackgroundColor(colors.cyan)
    term.clear()
    lines = breakIntoLines(HyTunes.currentSong.title)
    titleWord = "Currently Playing"

    lineNum = ((HyTunes.termSize[2] / 2) - (#lines / 2)) - 3
    term.setCursorPos((HyTunes.termSize[1] / 2) - (#titleWord / 2), lineNum - 1)
    write(titleWord)
    for _,line in pairs(lines) do
        term.setCursorPos((HyTunes.termSize[1] / 2) - (#line / 2), lineNum)
        write(line)
        lineNum = lineNum + 1
    end
    lineNum = lineNum + 1
    artistWord = "Artist"
    lines = breakIntoLines(HyTunes.currentSong.artist)
    for _,line in pairs(lines) do
        term.setCursorPos((HyTunes.termSize[1] / 2) - (#line / 2), lineNum)
        write(line)
        lineNum = lineNum + 1
    end

    paintutils.drawLine(1,HyTunes.termSize[2],HyTunes.termSize[1],HyTunes.termSize[2],colors.lightBlue)
    term.setCursorPos(1,HyTunes.termSize[2])
    write("Back")

    HyTunes.currentHandler = handleMusic
end

function handleMusic()
    local event, button, x, y = os.pullEvent("mouse_click")
    if x < 5 and y == HyTunes.termSize[2] then
        HyTunes.currentPage = renderList
    end
end

function handleList()
    local event, button, x, y = os.pullEvent("mouse_click")
    if y > 1 then
        if HyTunes.songs[y-1] then
            HyTunes.currentSong = HyTunes.songs[y-1]
            HyTunes.speaker.playSound(HyTunes.currentSong.track, HyTunes.Volume)
            HyTunes.currentPage = renderMusic
        end
    else
        if x >= HyTunes.termSize[1] - 2 then
            HyTunes.Volume = 3 - (HyTunes.termSize[1] - x)
            term.setCursorPos(HyTunes.termSize[1]-2,1)
            for i = 1,3 do
                if HyTunes.Volume == i then
                    term.setBackgroundColor(colors.pink)
                else
                    term.setBackgroundColor(colors.magenta)
                end
                write(i)
            end
        end
    end
end

HyTunes["currentPage"] = renderList

function doInteractions()
    processedPage = HyTunes.currentPage
    processedPage()
    processedHandler = HyTunes.currentHandler
    while true do
        processedHandler()
        if processedHandler ~= HyTunes.currentHandler then
            processedHandler = HyTunes.currentHandler
        end
        if processedPage ~= HyTunes.currentPage then
            processedPage = HyTunes.currentPage
            processedPage()
            processedHandler = HyTunes.currentHandler
        end
    end
end

doInteractions()