# -*- coding: utf-8 -*-
# -----------------------------------------------------------------------------
# Name:         tree/__init__.py
# Purpose:      Tools for grouping notes and chords into a searchable tree
#               organized by start and stop offsets
#
# Authors:      Josiah Wolf Oberholtzer
#               Michael Scott Asato Cuthbert
#
# Copyright:    Copyright © 2013-2015 Michael Scott Asato Cuthbert
# License:      BSD, see license.txt
# -----------------------------------------------------------------------------
'''
Tools for grouping notes and chords into a searchable tree
organized by start and stop offsets.

This is a lower-level tool that for now at least normal music21
users won't need to worry about.

This directory will change significantly and may even be removed in v10.
Developers who depend on certain tree features (chirp...chirp...) should
speak up on the music21list or GitHub -- but in > 12 years of having it
no one has said they use it -- hence why it should be modified!
'''
from __future__ import annotations

__all__ = [
    'analysis',
    'core',
    'fromStream',
    'node',
    'spans',
    'toStream',
    'trees',
    'verticality',

    'makeExampleScore',
]

# import unittest

from music21.tree import analysis
from music21.tree import core
from music21.tree import fromStream
from music21.tree import node
from music21.tree import spans
from music21.tree import toStream
from music21.tree import trees
from music21.tree import verticality


# -----------------------------------------------------------------------------

# TODO: Test with scores with Voices: cpebach/h186

def makeExampleScore():
    r'''
    Makes example score for use in stream-to-tree conversion docs.

    >>> sc = tree.makeExampleScore()
    >>> sc.show('text')
    {0.0} <music21.stream.Part ...>
        {0.0} <music21.instrument.Instrument 'PartA: : '>
        {0.0} <music21.stream.Measure 1 offset=0.0>
            {0.0} <music21.clef.BassClef>
            {0.0} <music21.meter.TimeSignature 2/4>
            {0.0} <music21.note.Note C>
            {1.0} <music21.note.Note D>
        {2.0} <music21.stream.Measure 2 offset=2.0>
            {0.0} <music21.note.Note E>
            {1.0} <music21.note.Note F>
        {4.0} <music21.stream.Measure 3 offset=4.0>
            {0.0} <music21.note.Note G>
            {1.0} <music21.note.Note A>
        {6.0} <music21.stream.Measure 4 offset=6.0>
            {0.0} <music21.note.Note B>
            {1.0} <music21.note.Note C>
            {2.0} <music21.bar.Barline type=final>
    {0.0} <music21.stream.Part ...>
        {0.0} <music21.instrument.Instrument 'PartB: : '>
        {0.0} <music21.stream.Measure 1 offset=0.0>
            {0.0} <music21.clef.BassClef>
            {0.0} <music21.meter.TimeSignature 2/4>
            {0.0} <music21.note.Note C#>
        {2.0} <music21.stream.Measure 2 offset=2.0>
            {0.0} <music21.note.Note G#>
        {4.0} <music21.stream.Measure 3 offset=4.0>
            {0.0} <music21.note.Note E#>
        {6.0} <music21.stream.Measure 4 offset=6.0>
            {0.0} <music21.note.Note D#>
            {2.0} <music21.bar.Barline type=final>
    '''
    from music21 import converter
    from music21 import stream
    streamA = converter.parse('tinynotation: 2/4 C4 D E F G A B C')
    streamB = converter.parse('tinynotation: 2/4 C#2  G#  E#  D#')
    streamA.makeMeasures(inPlace=True)
    streamB.makeMeasures(inPlace=True)
    partA = stream.Part()
    for x in streamA:
        partA.append(x)
    instrumentA = partA.getInstrument()
    instrumentA.partId = 'PartA'
    partA.insert(0, instrumentA)
    partB = stream.Part()
    for x in streamB:
        partB.append(x)
    instrumentB = partB.getInstrument()
    instrumentB.partId = 'PartB'
    partB.insert(0, instrumentB)
    score = stream.Score(id='exampleScore')
    score.insert(0, partA)
    score.insert(0, partB)
    return score


# -----------------------------------------------------------------------------


if __name__ == '__main__':
    import music21
    music21.mainTest()