Merge pull request #21 from Stepland/more-stuff

More stuff

CHANGELOG.md

@@ -1,10 +1,20 @@
 # v1.4.0
 ## Added
-- Jubeatools can now handle HAKUs, in the following formats :
+- Jubeatools can now handle HAKUs in the following formats :
   - [memon:v1.0.0]
-- [memon] 🎉 inital support for v1.0.0 !
+  - [eve]
+  - [jbsq]
+- [memon]
+  - 🎉 inital support for v1.0.0 !
+  - `--merge` option allows for several memon files to be merged when
+    jubeatools is called on a folder
 ## Changed
 - Improved the merging procedure for song objects
+- Re-enable calling the CLI on a folder, this was disabled for some reason ?
+- The song class now uses a regular dict to map difficuty names to chart
+  objects, dissalowing files with duplicate difficulties (`memon:legacy` was the
+  only format that *technically* supported this anyway, I conscider it an edge
+  case not really worth handling)
 
 # v1.3.0
 ## Added

jubeatools/cli/cli.py

@@ -5,21 +5,23 @@ from typing import Any, Dict, Optional
 
 import click
 
-from jubeatools.formats import DUMPERS, LOADERS
+from jubeatools.formats import DUMPERS, LOADERS, Format
-from jubeatools.formats.enum import Format
 from jubeatools.formats.guess import guess_format
 
 from .helpers import dumper_option, loader_option
 
 
 @click.command()
-@click.argument("src", type=click.Path(exists=True, dir_okay=False))
+@click.argument("src", type=click.Path(exists=True, dir_okay=True))
 @click.argument("dst", type=click.Path())
 @click.option(
     "--input-format",
     "input_format",
     type=click.Choice(list(f._value_ for f in LOADERS.keys())),
-    help="Input file format",
+    help=(
+        "Force jubeatools to read the input file/folder as the given format."
+        "If this option is not used jubeatools will try to guess the format"
+    ),
 )
 @click.option(
     "-f",
@@ -45,6 +47,11 @@ from .helpers import dumper_option, loader_option
         "the nearest 1/beat_snap beat"
     ),
 )
+@loader_option(
+    "--merge",
+    is_flag=True,
+    help="For memon, if called on a folder, merge all the .memon files found",
+)
 def convert(
     src: str,
     dst: str,

jubeatools/cli/tests/data/memon_merge/Sky Bus For Hire ADV.memon

@@ -0,0 +1,25 @@
+{
+    "data": {
+        "ADV": {
+            "level": 5,
+            "notes": [
+                {
+                    "l": 0,
+                    "n": 1,
+                    "p": 0,
+                    "t": 1680
+                }
+            ],
+            "resolution": 240
+        }
+    },
+    "metadata": {
+        "BPM": 180.28199768066406,
+        "album cover path": "2a03puritans.png",
+        "artist": "commandycan",
+        "music path": "Sky Bus For Hire.ogg",
+        "offset": -0.028,
+        "song title": "Sky Bus For Hire"
+    },
+    "version": "0.1.0"
+}

jubeatools/cli/tests/data/memon_merge/Sky Bus For Hire BSC.memon

@@ -0,0 +1,25 @@
+{
+    "data": {
+        "BSC": {
+            "level": 1,
+            "notes": [
+                {
+                    "l": 0,
+                    "n": 2,
+                    "p": 0,
+                    "t": 1680
+                }
+            ],
+            "resolution": 240
+        }
+    },
+    "metadata": {
+        "BPM": 180.28199768066406,
+        "album cover path": "2a03puritans.png",
+        "artist": "commandycan",
+        "music path": "Sky Bus For Hire.ogg",
+        "offset": -0.028,
+        "song title": "Sky Bus For Hire"
+    },
+    "version": "0.1.0"
+}

jubeatools/cli/tests/data/memon_merge/Sky Bus For Hire EXT.memon

@@ -0,0 +1,25 @@
+{
+    "data": {
+        "EXT": {
+            "level": 10,
+            "notes": [
+                {
+                    "l": 0,
+                    "n": 15,
+                    "p": 0,
+                    "t": 1680
+                }
+            ],
+            "resolution": 240
+        }
+    },
+    "metadata": {
+        "BPM": 180.28199768066406,
+        "album cover path": "2a03puritans.png",
+        "artist": "commandycan",
+        "music path": "Sky Bus For Hire.ogg",
+        "offset": -0.028,
+        "song title": "Sky Bus For Hire"
+    },
+    "version": "0.1.0"
+}

jubeatools/cli/tests/data/memon_merge/__init__.py

@@ -0,0 +1,2 @@
+"""This file is here so the test code can use importlib as a portable way to
+open test data in this folder"""

jubeatools/cli/tests/test_cli.py

@@ -1,15 +1,17 @@
 from importlib import resources
+from pathlib import Path
 
 from click.testing import CliRunner
 
+from jubeatools import song as jbt
+from jubeatools.formats import LOADERS, Format
+
 from ..cli import convert
 from . import data
 
 
 def test_that_ommiting_beat_snap_works() -> None:
-    """
+    """As pointed out by https://github.com/Stepland/jubeatools/issues/17"""
-    As pointed out by https://github.com/Stepland/jubeatools/issues/17
-    """
     runner = CliRunner()
     with runner.isolated_filesystem(), resources.path(
         data, "Life Without You.eve"
@@ -20,3 +22,50 @@ def test_that_ommiting_beat_snap_works() -> None:
         if result.exception:
             raise result.exception
         assert result.exit_code == 0
+
+
+def test_that_is_flag_works_the_way_intended() -> None:
+    """It's unclear to me what the default value is for an option with
+    is_flag=True"""
+    with resources.path(data, "Life Without You.eve") as p:
+        called_with_the_flag = convert.make_context(
+            "convert",
+            [str(p.resolve(strict=True)), "out.txt", "-f", "memo2", "--circlefree"],
+        )
+        assert called_with_the_flag.params["dumper_options"]["circle_free"] is True
+
+        called_without_the_flag = convert.make_context(
+            "convert", [str(p.resolve(strict=True)), "out.txt", "-f", "memo2"]
+        )
+        dumper_options = called_without_the_flag.params.get("dumper_options")
+        if dumper_options is not None:
+            circle_free = dumper_options.get("circle_free")
+            assert not circle_free
+
+
+def test_that_the_merge_option_works_for_memon_files() -> None:
+    runner = CliRunner()
+    with runner.isolated_filesystem(), resources.path(data, "memon_merge") as p:
+        result = runner.invoke(
+            convert,
+            [
+                "--input-format",
+                "memon:v0.1.0",
+                str(p.resolve(strict=True)),
+                "--merge",
+                "out.memon",
+                "-f",
+                "memon:v0.1.0",
+            ],
+        )
+        if result.exception:
+            raise result.exception
+        assert result.exit_code == 0
+
+        memon_loader = LOADERS[Format.MEMON_0_1_0]
+        bsc = memon_loader(p / "Sky Bus For Hire BSC.memon")
+        adv = memon_loader(p / "Sky Bus For Hire ADV.memon")
+        ext = memon_loader(p / "Sky Bus For Hire EXT.memon")
+        merged_by_cli = LOADERS[Format.MEMON_0_1_0](Path("out.memon"))
+        merged_with_python = jbt.Song.from_monochart_instances(bsc, adv, ext)
+        assert merged_by_cli == merged_with_python

jubeatools/formats/__init__.py

@@ -1,5 +1,5 @@
 """
 Module containing all the load/dump code for all file formats
 """
-from .enum import Format
+from .format_names import Format
 from .loaders_and_dumpers import DUMPERS, LOADERS

jubeatools/formats/enum.py

@@ -1,16 +0,0 @@
-from enum import Enum
-
-
-class Format(str, Enum):
-    EVE = "eve"
-    JBSQ = "jbsq"
-    MALODY = "malody"
-    MEMON_LEGACY = "memon:legacy"
-    MEMON_0_1_0 = "memon:v0.1.0"
-    MEMON_0_2_0 = "memon:v0.2.0"
-    MEMON_0_3_0 = "memon:v0.3.0"
-    MEMON_1_0_0 = "memon:v1.0.0"
-    MONO_COLUMN = "mono-column"
-    MEMO = "memo"
-    MEMO_1 = "memo1"
-    MEMO_2 = "memo2"

jubeatools/formats/guess.py

@@ -2,7 +2,7 @@ import json
 import re
 from pathlib import Path
 
-from .enum import Format
+from .format_names import Format
 
 
 def guess_format(path: Path) -> Format:

jubeatools/formats/jubeat_analyser/memo/load.py

@@ -349,4 +349,4 @@ def _load_memo_file(lines: List[str]) -> Song:
 def load_memo(path: Path, **kwargs: Any) -> Song:
     files = load_folder(path)
     charts = [_load_memo_file(lines) for _, lines in files.items()]
-    return Song.from_monochart_instances(charts)
+    return Song.from_monochart_instances(*charts)

jubeatools/formats/jubeat_analyser/memo1/load.py

@@ -340,4 +340,4 @@ def _load_memo1_file(lines: List[str]) -> Song:
 def load_memo1(path: Path, **kwargs: Any) -> Song:
     files = load_folder(path)
     charts = [_load_memo1_file(lines) for _, lines in files.items()]
-    return Song.from_monochart_instances(charts)
+    return Song.from_monochart_instances(*charts)

jubeatools/formats/jubeat_analyser/memo2/load.py

@@ -459,4 +459,4 @@ def _load_memo2_file(lines: List[str]) -> Song:
 def load_memo2(path: Path, **kwargs: Any) -> Song:
     files = load_folder(path)
     charts = [_load_memo2_file(lines) for _, lines in files.items()]
-    return Song.from_monochart_instances(charts)
+    return Song.from_monochart_instances(*charts)

jubeatools/formats/jubeat_analyser/mono_column/load.py

@@ -246,7 +246,7 @@ class MonoColumnParser(JubeatAnalyserParser):
 def load_mono_column(path: Path, **kwargs: Any) -> Song:
     files = load_folder(path)
     charts = [_load_mono_column_file(lines) for _, lines in files.items()]
-    return Song.from_monochart_instances(charts)
+    return Song.from_monochart_instances(*charts)
 
 
 def _load_mono_column_file(lines: List[str]) -> Song:

jubeatools/formats/jubeat_analyser/tests/memo/test_memo.py

@@ -7,7 +7,7 @@ from hypothesis import note as hypothesis_note
 from hypothesis import strategies as st
 
 from jubeatools import song
-from jubeatools.formats.enum import Format
+from jubeatools.formats.format_names import Format
 from jubeatools.formats.jubeat_analyser.memo.dump import _dump_memo_chart
 from jubeatools.formats.jubeat_analyser.memo.load import MemoParser
 from jubeatools.testutils import strategies as jbst

jubeatools/formats/konami/dump_tools.py

@@ -1,7 +1,7 @@
 import math
 from fractions import Fraction
 from functools import singledispatch
-from typing import List
+from typing import List, Optional, Set
 
 from more_itertools import numeric_range
 
@@ -11,10 +11,12 @@ from jubeatools.formats.timemap import TimeMap
 from .commons import AnyNote, Command, Event, bpm_to_value, ticks_at_beat
 
 
-def make_events_from_chart(notes: List[AnyNote], timing: song.Timing) -> List[Event]:
+def make_events_from_chart(
+    notes: List[AnyNote], timing: song.Timing, hakus: Optional[Set[song.BeatsTime]]
+) -> List[Event]:
     time_map = TimeMap.from_timing(timing)
     note_events = make_note_events(notes, time_map)
-    timing_events = make_timing_events(notes, timing, time_map)
+    timing_events = make_timing_events(notes, timing, hakus, time_map)
     return sorted(note_events + timing_events)
 
 
@@ -38,14 +40,21 @@ def make_long_note_event(note: song.LongNote, time_map: TimeMap) -> Event:
 
 
 def make_timing_events(
-    notes: List[AnyNote], timing: song.Timing, time_map: TimeMap
+    notes: List[AnyNote],
+    timing: song.Timing,
+    hakus: Optional[Set[song.BeatsTime]],
+    time_map: TimeMap,
 ) -> List[Event]:
     bpm_events = [make_bpm_event(e, time_map) for e in timing.events]
     end_beat = choose_end_beat(notes)
     end_event = make_end_event(end_beat, time_map)
     measure_events = make_measure_events(end_beat, time_map)
-    beat_events = make_beat_events(end_beat, time_map)
+    if hakus is not None:
-    return bpm_events + measure_events + beat_events + [end_event]
+        haku_events = dump_hakus(hakus, time_map)
+    else:
+        haku_events = make_regular_hakus(end_beat, time_map)
+
+    return bpm_events + measure_events + haku_events + [end_event]
 
 
 def make_bpm_event(bpm_change: song.BPMEvent, time_map: TimeMap) -> Event:
@@ -94,14 +103,18 @@ def make_measure_event(beat: song.BeatsTime, time_map: TimeMap) -> Event:
     return Event(time=ticks, command=Command.MEASURE, value=0)
 
 
-def make_beat_events(end_beat: song.BeatsTime, time_map: TimeMap) -> List[Event]:
+def dump_hakus(hakus: Set[song.BeatsTime], time_map: TimeMap) -> List[Event]:
+    return [make_haku_event(beat, time_map) for beat in sorted(hakus)]
+
+
+def make_regular_hakus(end_beat: song.BeatsTime, time_map: TimeMap) -> List[Event]:
     start = song.BeatsTime(0)
     stop = end_beat + song.BeatsTime(1, 2)
     step = song.BeatsTime(1)
     beats = numeric_range(start, stop, step)
-    return [make_beat_event(beat, time_map) for beat in beats]
+    return [make_haku_event(beat, time_map) for beat in beats]
 
 
-def make_beat_event(beat: song.BeatsTime, time_map: TimeMap) -> Event:
+def make_haku_event(beat: song.BeatsTime, time_map: TimeMap) -> Event:
     ticks = ticks_at_beat(beat, time_map)
     return Event(time=ticks, command=Command.HAKU, value=0)

jubeatools/formats/konami/eve/dump.py

@@ -10,8 +10,8 @@ from ..dump_tools import make_events_from_chart
 
 def _dump_eve(song: song.Song, **kwargs: dict) -> List[ChartFile]:
     res = []
-    for dif, chart, timing in song.iter_charts_with_applicable_timing():
+    for dif, chart, timing, hakus in song.iter_charts():
-        events = make_events_from_chart(chart.notes, timing)
+        events = make_events_from_chart(chart.notes, timing, hakus)
         chart_text = "\n".join(e.dump() for e in events)
         chart_bytes = chart_text.encode("ascii")
         res.append(ChartFile(chart_bytes, song, dif, chart))

jubeatools/formats/konami/eve/load.py

@@ -11,7 +11,7 @@ from ..load_tools import make_chart_from_events
 def load_eve(path: Path, *, beat_snap: int = 240, **kwargs: Any) -> song.Song:
     files = load_folder(path)
     charts = [_load_eve(l, p, beat_snap=beat_snap) for p, l in files.items()]
-    return song.Song.from_monochart_instances(charts)
+    return song.Song.from_monochart_instances(*charts)
 
 
 def load_file(path: Path) -> List[str]:

jubeatools/formats/konami/jbsq/dump.py

@@ -15,8 +15,8 @@ from . import construct
 
 def _dump_jbsq(song: song.Song, **kwargs: dict) -> List[ChartFile]:
     res = []
-    for dif, chart, timing in song.iter_charts_with_applicable_timing():
+    for dif, chart, timing, hakus in song.iter_charts():
-        events = make_events_from_chart(chart.notes, timing)
+        events = make_events_from_chart(chart.notes, timing, hakus)
         jbsq_chart = make_jbsq_chart(events, chart.notes)
         chart_bytes = construct.jbsq.build(jbsq_chart)
         res.append(ChartFile(chart_bytes, song, dif, chart))

jubeatools/formats/konami/jbsq/load.py

@@ -15,7 +15,7 @@ def load_jbsq(path: Path, *, beat_snap: int = 240, **kwargs: Any) -> song.Song:
         load_jbsq_file(bytes_, path, beat_snap=beat_snap)
         for path, bytes_ in files.items()
     ]
-    return song.Song.from_monochart_instances(charts)
+    return song.Song.from_monochart_instances(*charts)
 
 
 def load_file(path: Path) -> bytes:

jubeatools/formats/konami/load_tools.py

@@ -1,5 +1,7 @@
 from decimal import Decimal
-from typing import Iterable, List
+from typing import Iterable, List, Optional, Set
+
+from more_itertools import numeric_range
 
 from jubeatools import song
 from jubeatools.formats.load_tools import round_beats
@@ -36,17 +38,22 @@ def make_chart_from_events(events: Iterable[Event], beat_snap: int = 240) -> son
     ]
     all_notes = sorted(tap_notes + long_notes, key=lambda n: (n.time, n.position))
     timing = time_map.convert_to_timing_info(beat_snap=beat_snap)
-    return song.Chart(level=Decimal(0), timing=timing, notes=all_notes)
+    end_tick = events_by_command[Command.END].pop().time
+    hakus = make_hakus(
+        [e.time for e in events_by_command[Command.HAKU]],
+        end_tick,
+        time_map,
+        beat_snap,
+    )
+    return song.Chart(level=Decimal(0), timing=timing, notes=all_notes, hakus=hakus)
 
 
 def make_tap_note(
     ticks: int, value: int, time_map: TimeMap, beat_snap: int
 ) -> song.TapNote:
-    seconds = ticks_to_seconds(ticks)
+    time = beats_at_tick(ticks, time_map, beat_snap)
-    raw_beats = time_map.beats_at(seconds)
-    beats = round_beats(raw_beats, beat_snap)
     position = song.NotePosition.from_index(value)
-    return song.TapNote(time=beats, position=position)
+    return song.TapNote(time=time, position=position)
 
 
 def make_long_note(
@@ -67,3 +74,52 @@ def make_long_note(
     return song.LongNote(
         time=beats, position=position, duration=beats_duration, tail_tip=tail_pos
     )
+
+
+def make_hakus(
+    hakus: List[int], end: int, time_map: TimeMap, beat_snap: int
+) -> Optional[Set[song.BeatsTime]]:
+    """Try to detect if the haku pattern is regular, in which case return None,
+    otherwise return the parsed hakus"""
+    roughly_rounded_hakus = make_raw_hakus(hakus, time_map, beat_snap=4)
+    rough_end = beats_at_tick(end, time_map, beat_snap=4)
+    if follows_regular_haku_pattern(roughly_rounded_hakus, rough_end):
+        return None
+    else:
+        return make_raw_hakus(hakus, time_map, beat_snap)
+
+
+def make_raw_hakus(
+    hakus: List[int], time_map: TimeMap, beat_snap: int
+) -> Set[song.BeatsTime]:
+    return set(beats_at_tick(haku, time_map, beat_snap) for haku in hakus)
+
+
+def follows_regular_haku_pattern(
+    hakus: Set[song.BeatsTime], end_command: song.BeatsTime
+) -> bool:
+    """Regular hakus extend at least till the END command in a 4/4 rhythm"""
+    if len(hakus) == 0:
+        return False
+
+    start = min(hakus)
+    if (start % 1) != 0:
+        return False
+
+    haku_end = max(hakus)
+    if (haku_end % 1) != 0:
+        return False
+
+    if haku_end < end_command:
+        return False
+
+    stop = haku_end + song.BeatsTime(1, 2)
+    step = song.BeatsTime(1)
+    regular = numeric_range(start, stop, step)
+    return sorted(hakus) == list(regular)
+
+
+def beats_at_tick(tick: int, time_map: TimeMap, beat_snap: int) -> song.BeatsTime:
+    seconds = ticks_to_seconds(tick)
+    raw_beats = time_map.beats_at(seconds)
+    return round_beats(raw_beats, beat_snap)

jubeatools/formats/konami/testutils.py

@@ -12,7 +12,7 @@ simple_beat_strat = jbst.beat_time(
 
 @st.composite
 def eve_compatible_song(draw: st.DrawFn) -> song.Song:
-    """eve only keeps notes, timing info and difficulty,
+    """eve only keeps notes, hakus, timing info and difficulty,
     the precision you can get out of it is also severly limited"""
     diff = draw(st.sampled_from(list(song.Difficulty)))
     chart = draw(
@@ -42,6 +42,7 @@ def eve_compatible_song(draw: st.DrawFn) -> song.Song:
                 beat_time_strat=simple_beat_strat,
             ),
             level_strat=st.just(Decimal(0)),
+            hakus_strat=st.one_of(st.none(), st.sets(simple_beat_strat)),
         )
     )
     return song.Song(

jubeatools/formats/loaders_and_dumpers.py

@@ -1,7 +1,7 @@
 from typing import Dict
 
 from . import jubeat_analyser, konami, malody, memon
-from .enum import Format
+from .format_names import Format
 from .typing import Dumper, Loader
 
 LOADERS: Dict[Format, Loader] = {

jubeatools/formats/malody/load.py

@@ -18,7 +18,7 @@ from . import schema as malody
 def load_malody(path: Path, **kwargs: Any) -> song.Song:
     files = load_folder(path)
     charts = [load_malody_file(d) for d in files.values()]
-    return song.Song.from_monochart_instances(charts)
+    return song.Song.from_monochart_instances(*charts)
 
 
 def load_file(path: Path) -> Any:

jubeatools/formats/memon/tools.py

@@ -31,7 +31,7 @@ def make_memon_folder_loader(memon_loader: Callable[[Any], jbt.Song]) -> Loader:
             )
 
         charts = [memon_loader(d) for d in files.values()]
-        return jbt.Song.from_monochart_instances(charts)
+        return jbt.Song.from_monochart_instances(*charts)
 
     return load
 

jubeatools/formats/memon/v0/load.py

@@ -1,7 +1,5 @@
 from pathlib import Path
-from typing import Any, Union
+from typing import Any, Dict, Union
-
-from multidict import MultiDict
 
 from jubeatools import song as jbt
 from jubeatools.utils import none_or
@@ -38,18 +36,17 @@ def _load_memon_legacy(raw_memon: Any) -> jbt.Song:
         events=[jbt.BPMEvent(time=jbt.BeatsTime(0), BPM=file["metadata"]["BPM"])],
         beat_zero_offset=jbt.SecondsTime(-file["metadata"]["offset"]),
     )
-    charts: MultiDict[jbt.Chart] = MultiDict()
+    charts: Dict[str, jbt.Chart] = {}
     for memon_chart in file["data"]:
-        charts.add(
+        difficulty = memon_chart["dif_name"]
-            memon_chart["dif_name"],
+        chart = jbt.Chart(
-            jbt.Chart(
             level=memon_chart["level"],
             notes=[
                 _load_memon_note_v0(note, memon_chart["resolution"])
                 for note in memon_chart["notes"]
             ],
-            ),
         )
+        charts[difficulty] = chart
 
     return jbt.Song(metadata=metadata, charts=charts, common_timing=common_timing)
 
@@ -70,18 +67,16 @@ def _load_memon_0_1_0(raw_memon: Any) -> jbt.Song:
         events=[jbt.BPMEvent(time=jbt.BeatsTime(0), BPM=file["metadata"]["BPM"])],
         beat_zero_offset=jbt.SecondsTime(-file["metadata"]["offset"]),
     )
-    charts: MultiDict[jbt.Chart] = MultiDict()
+    charts: Dict[str, jbt.Chart] = {}
     for difficulty, memon_chart in file["data"].items():
-        charts.add(
+        chart = jbt.Chart(
-            difficulty,
-            jbt.Chart(
             level=memon_chart["level"],
             notes=[
                 _load_memon_note_v0(note, memon_chart["resolution"])
                 for note in memon_chart["notes"]
             ],
-            ),
         )
+        charts[difficulty] = chart
 
     return jbt.Song(metadata=metadata, charts=charts, common_timing=common_timing)
 
@@ -109,18 +104,16 @@ def _load_memon_0_2_0(raw_memon: Any) -> jbt.Song:
         events=[jbt.BPMEvent(time=jbt.BeatsTime(0), BPM=file["metadata"]["BPM"])],
         beat_zero_offset=jbt.SecondsTime(-file["metadata"]["offset"]),
     )
-    charts: MultiDict[jbt.Chart] = MultiDict()
+    charts: Dict[str, jbt.Chart] = {}
     for difficulty, memon_chart in file["data"].items():
-        charts.add(
+        chart = jbt.Chart(
-            difficulty,
-            jbt.Chart(
             level=memon_chart["level"],
             notes=[
                 _load_memon_note_v0(note, memon_chart["resolution"])
                 for note in memon_chart["notes"]
             ],
-            ),
         )
+        charts[difficulty] = chart
 
     return jbt.Song(metadata=metadata, charts=charts, common_timing=common_timing)
 
@@ -149,18 +142,16 @@ def _load_memon_0_3_0(raw_memon: Any) -> jbt.Song:
         events=[jbt.BPMEvent(time=jbt.BeatsTime(0), BPM=file["metadata"]["BPM"])],
         beat_zero_offset=jbt.SecondsTime(-file["metadata"]["offset"]),
     )
-    charts: MultiDict[jbt.Chart] = MultiDict()
+    charts: Dict[str, jbt.Chart] = {}
     for difficulty, memon_chart in file["data"].items():
-        charts.add(
+        chart = jbt.Chart(
-            difficulty,
-            jbt.Chart(
             level=memon_chart["level"],
             notes=[
                 _load_memon_note_v0(note, memon_chart["resolution"])
                 for note in memon_chart["notes"]
             ],
-            ),
         )
+        charts[difficulty] = chart
 
     return jbt.Song(metadata=metadata, charts=charts, common_timing=common_timing)
 

jubeatools/formats/memon/v0/test_v0.py

@@ -4,7 +4,7 @@ import hypothesis.strategies as st
 from hypothesis import given
 
 from jubeatools import song
-from jubeatools.formats.enum import Format
+from jubeatools.formats.format_names import Format
 from jubeatools.testutils import strategies as jbst
 from jubeatools.testutils.test_patterns import dump_and_load_then_compare
 

jubeatools/formats/memon/v1/dump.py

@@ -12,9 +12,7 @@ from ..tools import make_memon_dumper
 from . import schema as memon
 
 
-def _dump_memon_1_0_0(
+def _dump_memon_1_0_0(song: jbt.Song, **kwargs: Any) -> SongFile:
-    song: jbt.Song, use_fractions: bool = False, **kwargs: Any
-) -> SongFile:
     metadata = dump_metadata(song.metadata)
     common_timing = dump_file_timing(song)
     charts = {

jubeatools/formats/memon/v1/tests/test_v1.py

@@ -5,7 +5,7 @@ import hypothesis.strategies as st
 from hypothesis import given
 
 from jubeatools import song
-from jubeatools.formats.enum import Format
+from jubeatools.formats.format_names import Format
 from jubeatools.testutils import strategies as jbst
 from jubeatools.testutils.test_patterns import dump_and_load_then_compare
 

jubeatools/song.py

@@ -17,6 +17,7 @@ from pathlib import Path
 from typing import (
     Any,
     Callable,
+    Dict,
     Iterable,
     Iterator,
     List,
@@ -28,8 +29,6 @@ from typing import (
     Union,
 )
 
-from multidict import MultiDict
-
 from jubeatools.utils import none_or
 
 BeatsTime = Fraction
@@ -223,14 +222,13 @@ class Metadata:
     preview_file: Optional[Path] = None
 
     @classmethod
-    def permissive_merge(cls, metadatas: Iterable["Metadata"]) -> "Metadata":
+    def permissive_merge(cls, *metadatas: "Metadata") -> "Metadata":
         """Make the "sum" of all the given metadata instances, if possible. If
         several instances have different defined values for the same field,
         merging will fail. Fields with Noneor empty values (empty string or
         empty path) are conscidered undefined and their values can be replaced
         by an actual value if supplied by at least one object from the given
         iterable."""
-        metadatas = list(metadatas)
         return cls(
             **{f.name: _get_common_value(f, metadatas) for f in fields(cls)},
         )
@@ -280,18 +278,18 @@ class Song:
     A Song is a set of charts with associated metadata"""
 
     metadata: Metadata
-    charts: Mapping[str, Chart] = field(default_factory=MultiDict)
+    charts: Mapping[str, Chart] = field(default_factory=dict)
     common_timing: Optional[Timing] = None
     common_hakus: Optional[Set[BeatsTime]] = None
 
     @classmethod
-    def from_monochart_instances(cls, songs: Iterable["Song"]) -> "Song":
+    def from_monochart_instances(cls, *songs: "Song") -> "Song":
-        metadata = Metadata.permissive_merge(song.metadata for song in songs)
+        metadata = Metadata.permissive_merge(*(song.metadata for song in songs))
-        charts: MultiDict[Chart] = MultiDict()
+        charts: Dict[str, Chart] = {}
         for song in songs:
             song.remove_common_timing()
             song.remove_common_hakus()
-            charts.extend(song.charts)
+            charts.update(song.charts)
 
         merged = cls(
             metadata=metadata,
@@ -351,3 +349,15 @@ class Song:
                     f"Neither song nor {dif} chart have any timing information"
                 )
             yield dif, chart, timing
+
+    def iter_charts(
+        self,
+    ) -> Iterator[Tuple[str, Chart, Timing, Optional[Set[BeatsTime]]]]:
+        for dif, chart in self.charts.items():
+            timing = chart.timing or self.common_timing
+            if timing is None:
+                raise ValueError(
+                    f"Neither song nor {dif} chart have any timing information"
+                )
+            hakus = chart.hakus if chart.hakus is not None else self.common_hakus
+            yield dif, chart, timing, hakus

jubeatools/testutils/strategies.py

@@ -10,7 +10,6 @@ from pathlib import Path
 from typing import Dict, Iterable, Optional, Set, Union
 
 import hypothesis.strategies as st
-from multidict import MultiDict
 
 from jubeatools.song import (
     BeatsTime,
@@ -286,14 +285,9 @@ def song(
     chart_strat: st.SearchStrategy[Chart] = chart(),
     metadata_strat: st.SearchStrategy[Metadata] = metadata(),
 ) -> Song:
-    diffs = draw(diffs_strat)
-    charts: MultiDict[Chart] = MultiDict()
-    for diff_name in diffs:
-        charts.add(diff_name, draw(chart_strat))
-
     return Song(
         metadata=draw(metadata_strat),
-        charts=charts,
+        charts={difficulty: draw(chart_strat) for difficulty in draw(diffs_strat)},
         common_timing=draw(common_timing_strat),
         common_hakus=draw(common_hakus_strat),
     )

jubeatools/testutils/test_patterns.py

@@ -6,8 +6,7 @@ from typing import Callable, ContextManager, Iterator, Optional
 from hypothesis import note
 
 from jubeatools import song
-from jubeatools.formats import DUMPERS, LOADERS
+from jubeatools.formats import DUMPERS, LOADERS, Format
-from jubeatools.formats.enum import Format
 from jubeatools.formats.guess import guess_format
 
 

poetry.lock

@@ -238,14 +238,6 @@ category = "main"
 optional = false
 python-versions = ">=3.5"
 
-[[package]]
-name = "multidict"
-version = "5.2.0"
-description = "multidict implementation"
-category = "main"
-optional = false
-python-versions = ">=3.6"
-
 [[package]]
 name = "mypy"
 version = "0.910"
@@ -523,7 +515,7 @@ typing-extensions = ">=3.7.4"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "41155bca4070edc9eb6e6369890af55397251caeab4e5c2db62ef7785410853e"
+content-hash = "971f32ab1478240f072615b119a1df87aebccfb26e6ee4cf013d938ff15db690"
 
 [metadata.files]
 atomicwrites = [
@@ -596,80 +588,6 @@ more-itertools = [
     {file = "more-itertools-8.12.0.tar.gz", hash = "sha256:7dc6ad46f05f545f900dd59e8dfb4e84a4827b97b3cfecb175ea0c7d247f6064"},
     {file = "more_itertools-8.12.0-py3-none-any.whl", hash = "sha256:43e6dd9942dffd72661a2c4ef383ad7da1e6a3e968a927ad7a6083ab410a688b"},
 ]
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pyproject.toml

@@ -8,7 +8,6 @@ repository = "https://github.com/Stepland/jubeatools"
 
 [tool.poetry.dependencies]
 python = "^3.8"
-multidict = "^5.1.0"
 click = "^8.0.3"
 path = "^15.1.2"
 simplejson = "^3.17.0"