Files
audio_splitter/web/backend/api/split_file.py
T

152 lines
4.8 KiB
Python

"""Endpoint for splitting with a tracklist file upload."""
import json
from pathlib import Path
from typing import Optional
from fastapi import APIRouter, UploadFile, File, Form, HTTPException, BackgroundTasks
from backend.config import settings
from backend.services.task_manager import task_manager
from backend.services.splitter import run_split_task
from backend.models.request import TracklistEntry
from backend.models.response import SplitResponse, TaskStatus
router = APIRouter(prefix="/api", tags=["split"])
from audio_splitter.tracklist import parse_format, read_tracklist
@router.post("/split-file", response_model=SplitResponse)
async def split_from_file(
background_tasks: BackgroundTasks,
task_id: str = Form(...),
tracklist_file: UploadFile = File(...),
# New fields
container: Optional[str] = Form(None),
audio_codec: str = Form("copy"),
video_codec: str = Form("copy"),
subtitle_codec: str = Form("copy"),
video_quality: Optional[int] = Form(None),
drop_video: bool = Form(False),
drop_subs: bool = Form(False),
number_tracks: bool = Form(False),
replace_bad_chars: bool = Form(False),
replacement_char: str = Form("_"),
bad_chars: str = Form(r'!@#№$;:%^&?*(){}[]\/<>+=~`\' '),
skip_existing: bool = Form(False),
output_template: str = Form("%an-%tn.%ext"),
album: Optional[str] = Form(None),
comment: Optional[str] = Form(None),
no_comment: bool = Form(False),
comment_stream: Optional[int] = Form(None),
merge_comments: bool = Form(False),
comment_separator: str = Form("; "),
options: str = Form("{}"), # backward-compatible, but we now use explicit fields
tracklist_format: str = Form("%ts %tn - %an"),
):
# Validate task exists
if not task_manager.has_task(task_id):
raise HTTPException(status_code=404, detail=f"Task {task_id} not found")
status = task_manager.get_status(task_id)
if status and status["status"] in (TaskStatus.PROCESSING, TaskStatus.DONE):
raise HTTPException(
status_code=409,
detail=f"Task {task_id} is already {status['status']}"
)
if not tracklist_file.filename.endswith(('.txt', '.text')):
raise HTTPException(
status_code=400,
detail="Tracklist file must be a text file (.txt or .text)"
)
try:
content = await tracklist_file.read()
text = content.decode('utf-8')
except UnicodeDecodeError:
raise HTTPException(
status_code=400,
detail="Tracklist file must be UTF-8 encoded"
)
if not text.strip():
raise HTTPException(
status_code=400,
detail="Tracklist file is empty"
)
# Parse tracklist using CLI logic
try:
tokens = parse_format(tracklist_format)
temp_tracklist_path = settings.temp_dir / task_id / "tracklist.txt"
temp_tracklist_path.parent.mkdir(parents=True, exist_ok=True)
temp_tracklist_path.write_text(text, encoding='utf-8')
tracklist_dicts = read_tracklist(str(temp_tracklist_path), tokens)
except Exception as e:
raise HTTPException(
status_code=400,
detail=f"Failed to parse tracklist: {str(e)}"
)
if not tracklist_dicts:
raise HTTPException(
status_code=400,
detail="No valid tracks found in tracklist file"
)
# Convert dicts to TracklistEntry objects
try:
tracklist_entries = [TracklistEntry(**entry) for entry in tracklist_dicts]
except Exception as e:
raise HTTPException(
status_code=400,
detail=f"Invalid tracklist data: {str(e)}"
)
# Build options dict from explicit fields (ignore `options` parameter)
options = {
"container": container,
"audio_codec": audio_codec,
"video_codec": video_codec,
"subtitle_codec": subtitle_codec,
"video_quality": video_quality,
"drop_video": drop_video,
"drop_subs": drop_subs,
"number_tracks": number_tracks,
"replace_bad_chars": replace_bad_chars,
"replacement_char": replacement_char,
"bad_chars": bad_chars,
"skip_existing": skip_existing,
"output_template": output_template,
"album": album,
"comment": comment,
"no_comment": no_comment,
"comment_stream": comment_stream,
"merge_comments": merge_comments,
"comment_separator": comment_separator,
}
# Update task status
task_manager.update_task(
task_id,
status=TaskStatus.PROCESSING,
progress=0,
message="Preparing to split..."
)
background_tasks.add_task(
run_split_task,
task_id,
tracklist_entries,
options
)
return SplitResponse(
task_id=task_id,
status=TaskStatus.PROCESSING
)