#!/usr/bin/env python3

import sys
import configparser
from glob import glob


class Config:
    def __init__(self, config_path):
        cp = configparser.ConfigParser()
        cp.read(config_path)

        # Print non-keyboard keys.
        for key in cp.keys():
            if key in ('KEYBOARD', 'DEFAULT'):
                continue
            print('[' + key + ']')
            conf = cp[key]
            for k in conf.keys():
                print('{0} = {1}'.format(k, conf[k]))

        conf = cp['KEYBOARD']

        self.midi_min = conf.getint('midi_min', 21)
        self.midi_max = conf.getint('midi_max', 109)
        self.amp_low = conf.getfloat('amp_low', 0.24)
        self.amp_high = conf.getfloat('amp_high', 0.04)
        self.rms_time_low = conf.getfloat('rms_time_low', 500)
        self.rms_time_high = conf.getfloat('rms_time_high', 50)


class Tuning:
    def __init__(self, path):
        self.cp = configparser.ConfigParser()
        self.cp.read(path)
        self.conf = self.cp['TUNING']

    def get_freq(self, note):
        # TODO!
        return None


class Note:
    def __init__(self, idx, conf):
        self.conf = conf
        self.idx = idx
        self.path = "samples/*{0:03}-*-*.flac".format(idx)

    def name(self):
        return "note-{0:03}".format(self.idx)

    def _linear(self, low, high):
        m = (high - low) / 87.0
        return low + m * (self.idx - 21)

    def amp(self):
        return self._linear(conf.amp_low, conf.amp_high)

    def rms_time(self):
        return self._linear(conf.rms_time_low, conf.rms_time_high)

    def conf_path(self):
        return 'path = ' + self.path

    def conf_fx(self):
        return 'fx = divide_rms({0}) amp({1})'.format(
            self.rms_time(), self.amp())


def noteFromFile(fn):
    base = os.path.splitext(fn)[0]
    return int(base.split('-')[-3])


if __name__ == '__main__':
    conf = Config(sys.argv[1])

    # Create the notes.
    notes = []
    for idx in range(conf.midi_min, conf.midi_max + 1):
        notes.append(Note(idx, conf))

    # Print triggers.
    print('\n[TRIGGERS]')
    for note in notes:
        print('{0} = {1}'.format(note.idx, note.name()))

    print('\n[GLOBAL]')
    print('tau_off = 100')

    # Print notes.
    for note in notes:
        print('')
        print('[{0}]'.format(note.name()))
        print(note.conf_path())
        print(note.conf_fx())