import mido
import time
import winsound
import math


#plays a Note through windows
def playNote(freq, dur):
    winsound.Beep(freq, dur)


#convert a note to a frequency
def noteToFreq(note):
    return (2**((note-69)/12))*440

#select which midi channel you want to convert. Can be multiple, but it often doesn't work. Not like anything else does.
channelIsole = [0]

# set the midi file here
file = mido.MidiFile("MIDIs/laputa.mid")

# use this to modify the tempo.
tempoMult = 1/1

# use this to modify the key. I've found out my routerboards is less tone deaf with a higher key. Mileage will vary.
freqMult = 1.3

# start of the shitty code
tabNote = [msg for msg in file]
# print(f"tab lenght is {len(tabNote)}")
note1 = tabNote[0]
note2 = tabNote[0]
i = 0
isFound = False
biMode = False


out = open("out.txt",'w')

while i < len(tabNote):
    while((not isFound) and i < len(tabNote)):
        # print("b1", i, tabNote[i])
        if tabNote[i].type == "note_on":
            if(tabNote[i].channel in channelIsole):
                note1 = tabNote[i]
                isFound = True
        i += 1


    isFound = False
    # print("found note 1", i-1, note1)


    while((not isFound) and i < len(tabNote)):
        # print("b2", i, tabNote[i])
        if tabNote[i].type == "note_off":
            if(tabNote[i].channel in channelIsole ):
                note2 = tabNote[i]
                isFound = True
                biMode = True

        elif tabNote[i].type == "note_on":
            if( tabNote[i].channel in channelIsole):
                biMode = False
                isFound = True
        i += 1


    isFound = False

    if(biMode):
        # print("######")
        # print("lol",note1)
        # print("mdr",note2)
        # print("######")

        freq = int(noteToFreq(note1.note))
        duration = int((note1.time + note2.time) *1000) # in ms

        if(duration == 0):
            duration = 150

        # print(freq, duration)

        #if(msg.time>0.1):
        # playNote(freq, int(duration*tempoMult))
        out.write(f":beep frequency={int(freq*freqMult)} length={int(duration*tempoMult)}ms;\n")
        out.write(f":delay {int(note2.time/8*1000 + duration*tempoMult)}ms;\n")

        # time.sleep((note2.time/8)*1000)

    elif note1.type == "note_on":
        # break
        # print(note1)
        freq = int(noteToFreq(note1.note))
        duration = int((note1.time) *1000) # in ms

        if(duration == 0):
            duration = 15

        # print(freq, duration)

        # if(msg.time>0.1):
        # out.write(f":beep frequency={freq} length={int(duration*tempoMult)}ms;\n")
        # out.write(f":delay {int(note1.time/8*1000 + duration*tempoMult)}ms;\n")


        # playNote(freq, duration)
        out.write(f":beep frequency={int(freq*freqMult)} length={duration}ms;\n")
        out.write(f":delay {duration}ms;\n")
        #time.sleep(note1.time/8)




out.close()