[CC] chest search

MODEM_SIDE = 'top'
sensorId = nil

function clearScreen()
    term.clear()
    term.setCursorPos(1,1)
end

function mainScreen()
    term.setBackgroundColor(colors.black)
    clearScreen()
    term.setBackgroundColor(colors.blue)
    term.write("> ")
    width = term.getSize()
    for i=3,width do
        term.write(' ')
    end

    term.setBackgroundColor(colors.black)
    term.setCursorPos(3,1)
end

function retreiveData()
    rednet.send(sensorId, {type='query'})
    while true do
        snd,data = rednet.receive()
        if(snd == sensorId) then
            return data
        end
    end
end

function processRequest(req)
    data = retreiveData()

    result = {}

    for label,val in pairs(data) do
        for slotId,content in pairs(val.Slots) do
            if(string.lower(content.Name):find(req) ~= nil) then
                result[#result+1] = val.Position
                break
            end
        end
    end
    return result
end

function displayResult(res)
    _,height = term.getSize()
    if(#res > 0) then
        for line = 2, math.min(#res+1, height) do
            term.setCursorPos(1,line)
            pos = res[line - 1]
            rangee = 0
            if(pos.Z == 0) then
                rangee = 2
            elseif(pos.Z > 0) then
                rangee = 1
            else
                rangee = 3
            end

            profondeur = math.floor((pos.X + 5) / 2) + 1

            hauteur = pos.Y + 8

            term.write('Rangée '..rangee..' ; profondeur '..profondeur..' ; hauteur '..hauteur)
        end
    else
        term.setCursorPos(1,2)
        term.write("Aucun résultat.")
    end
    term.setCursorPos(3,1)
end

function main()
    clearScreen()
    print("Loading...")

    rednet.open(MODEM_SIDE)
    os.sleep(3)
    sensorId = rednet.lookup('sensor', 'chests')
    if(sensorId == nil) then
        print("Sensor unavailable.")
        os.sleep(5)
        return
    end

    mainScreen()

    while(true) do
        term.setBackgroundColor(colors.blue)
        req = read()
        mainScreen()

        res = processRequest(req)
        displayResult(res)
    end
end
main()