Computercraft/Computronics Tape DJ Program - Play

args = {...}
-- Change this to any connected monitor you want to use for system output
mon = peripheral.wrap("monitor_2")
-- This is the terminal's screen. Do not touch this!
ter = term.current()
-- If there are no arguments in the command then...
if args == nil then
term.setTextColor(colors.red)
print("Warning: No parameters given!")
print("Use \"play #\" to select a drive")
-- Otherwise, if there are arguments, if they match the case do...
else
    if args[1] == "1" then
        print("Playing Drive 1")
        -- Sets the tape command to refer to the connected tape drive. Change this to whatever drive you want to use
        -- Copy this if/elseif section to connect more drives
        tape = peripheral.wrap("tape_drive_0")
        -- Displays a "Now Playing" message on the connected monitor
        print("Now Playing: " .. tape.getLabel())
        term.redirect(mon)
        term.setTextColor(colors.orange)
        print("Now Playing:")
        print(tape.getLabel())
        term.redirect(ter)
    elseif args[1] == "2" then
        print("Playing Drive 2")
        tape = peripheral.wrap("tape_drive_1")
        print("Now Playing: " .. tape.getLabel())
        term.redirect(mon)
        term.setTextColor(colors.orange)
        print("Now Playing:")
        print(tape.getLabel())
        term.redirect(ter)
    elseif args[1] == "3" then
        print("Playing Drive 3")
        tape = peripheral.wrap("tape_drive_2")
        print("Now Playing: " .. tape.getLabel())
        term.redirect(mon)
        term.setTextColor(colors.orange)
        print("Now Playing:")
        print(tape.getLabel())
        term.redirect(ter)
    elseif args[1] == "all" then
        print("Playing All Drives. This is a bad idea, but you're the DJ, not me...")
        -- Drive 1
        tape = peripheral.wrap("tape_drive_0")
        if args[2] == nil then
            tape.seek(-tape.getSize())
        elseif args[2] == "hot" then
            term.setTextColor(colors.orange)
            print("hot parameter used! Not rewinding the tapes!")
            term.setTextColor(colors.white)
        else
            term.setTextColor(colors.red)
            print("Parameter 2 Invalid! Using Default Value...")
            term.setTextColor(colors.white)
            tape.seek(-tape.getSize())
        end
        print("Now Playing: " .. tape.getLabel())
        term.redirect(mon)
        term.setTextColor(colors.orange)
        print("Now Playing:")
        print(tape.getLabel())
        term.redirect(ter)
        tape.play()
        -- Drive 2
        tape = peripheral.wrap("tape_drive_1")
        if args[2] == nil then
            tape.seek(-tape.getSize())
        elseif args[2] == "hot" then
            term.setTextColor(colors.orange)
            print("hot parameter used! Not rewinding the tapes!")
            term.setTextColor(colors.white)
        else
            term.setTextColor(colors.red)
            print("Parameter 2 Invalid! Using Default Value...")
            term.setTextColor(colors.white)
            tape.seek(-tape.getSize())
        end
        print("Now Playing: " .. tape.getLabel())
        term.redirect(mon)
        term.setTextColor(colors.orange)
        print(tape.getLabel())
        term.redirect(ter)
        -- Drive 3
        tape.play()
        tape = peripheral.wrap("tape_drive_2")
        if args[2] == nil then
            tape.seek(-tape.getSize())
        elseif args[2] == "hot" then
            term.setTextColor(colors.orange)
            print("hot parameter used! Not rewinding the tapes!")
            term.setTextColor(colors.white)
        else
            term.setTextColor(colors.red)
            print("Parameter 2 Invalid! Using Default Value...")
            term.setTextColor(colors.white)
            tape.seek(-tape.getSize())
        end
        print("Now Playing: " .. tape.getLabel())
        term.redirect(mon)
        term.setTextColor(colors.orange)
        print(tape.getLabel())
        term.redirect(ter)
    else
        term.setTextColor(colors.red)
        print("Error: Parameter 1 Invalid! Please select a valid drive!")
        term.setTextColor(colors.white)
    end
    -- Rewinds and plays the tape for the selected drive
    if args[2] == nil then
        if tape == nil then
            sleep(0.1)
        else
            tape.seek(-tape.getSize())
        end
    elseif args[2] == "hot" then
        term.setTextColor(colors.orange)
        print("hot parameter used! Not rewinding the tape!")
        term.setTextColor(colors.white)
    else
        term.setTextColor(colors.red)
        print("Parameter 2 Invalid! Using Default Value...")
        term.setTextColor(colors.white)
        tape.seek(-tape.getSize())
    end
    if tape == nil then
        sleep(0.1)
    else
        tape.play()
    end
end