394 lines
14 KiB
Python
394 lines
14 KiB
Python
import json
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import sqlite3
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from datetime import datetime, timezone
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from pathlib import Path
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from typing import Any, Dict, List, Optional
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import uuid
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from .models import SentenceBoundary, SentenceBoundaryDocument
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from .store import normalize_video_hash
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def utc_now() -> str:
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return datetime.now(timezone.utc).isoformat()
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class VideoRepository:
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def __init__(self, database_path: Path):
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self.database_path = Path(database_path)
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self.database_path.parent.mkdir(parents=True, exist_ok=True)
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self._initialize()
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def _connect(self) -> sqlite3.Connection:
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connection = sqlite3.connect(self.database_path, timeout=30)
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connection.row_factory = sqlite3.Row
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connection.execute("PRAGMA foreign_keys = ON")
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connection.execute("PRAGMA journal_mode = WAL")
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return connection
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def _initialize(self) -> None:
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with self._connect() as connection:
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connection.executescript(
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"""
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CREATE TABLE IF NOT EXISTS videos (
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video_hash TEXT PRIMARY KEY,
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title TEXT NOT NULL,
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filename TEXT NOT NULL,
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stored_filename TEXT NOT NULL,
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content_type TEXT NOT NULL,
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size_bytes INTEGER NOT NULL,
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duration_ms INTEGER,
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language TEXT,
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status TEXT NOT NULL,
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error_message TEXT,
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algorithm_version TEXT,
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transcription TEXT,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL
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);
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CREATE TABLE IF NOT EXISTS sentences (
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video_hash TEXT NOT NULL,
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sentence_index INTEGER NOT NULL,
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start_ms INTEGER NOT NULL,
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end_ms INTEGER NOT NULL,
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text TEXT,
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language TEXT,
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reference_speech_duration_ms INTEGER,
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PRIMARY KEY (video_hash, sentence_index),
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FOREIGN KEY (video_hash) REFERENCES videos(video_hash) ON DELETE CASCADE
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);
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CREATE TABLE IF NOT EXISTS attempts (
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attempt_id TEXT PRIMARY KEY,
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video_hash TEXT NOT NULL,
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sentence_index INTEGER NOT NULL,
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result_json TEXT NOT NULL,
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audio_filename TEXT,
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created_at TEXT NOT NULL,
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FOREIGN KEY (video_hash) REFERENCES videos(video_hash) ON DELETE CASCADE
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);
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CREATE TABLE IF NOT EXISTS dub_shares (
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share_id TEXT PRIMARY KEY,
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video_hash TEXT NOT NULL,
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title TEXT NOT NULL,
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created_at TEXT NOT NULL,
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FOREIGN KEY (video_hash) REFERENCES videos(video_hash) ON DELETE CASCADE
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);
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CREATE TABLE IF NOT EXISTS dub_share_segments (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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share_id TEXT NOT NULL,
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sentence_index INTEGER NOT NULL,
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start_ms INTEGER NOT NULL,
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end_ms INTEGER NOT NULL,
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text TEXT,
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audio_filename TEXT NOT NULL,
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audio_size_bytes INTEGER NOT NULL,
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FOREIGN KEY (share_id) REFERENCES dub_shares(share_id) ON DELETE CASCADE,
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UNIQUE (share_id, sentence_index)
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);
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"""
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)
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def upsert_upload(
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self,
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*,
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video_hash: str,
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title: str,
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filename: str,
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stored_filename: str,
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content_type: str,
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size_bytes: int,
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language: Optional[str],
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) -> None:
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normalized_hash = normalize_video_hash(video_hash)
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now = utc_now()
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with self._connect() as connection:
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existing = connection.execute(
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"SELECT created_at FROM videos WHERE video_hash = ?",
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(normalized_hash,),
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).fetchone()
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created_at = existing["created_at"] if existing else now
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connection.execute(
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"""
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INSERT INTO videos (
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video_hash, title, filename, stored_filename, content_type,
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size_bytes, duration_ms, language, status, error_message,
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algorithm_version, transcription, created_at, updated_at
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) VALUES (?, ?, ?, ?, ?, ?, NULL, ?, 'uploaded', NULL, NULL, NULL, ?, ?)
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ON CONFLICT(video_hash) DO UPDATE SET
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title = excluded.title,
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filename = excluded.filename,
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stored_filename = excluded.stored_filename,
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content_type = excluded.content_type,
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size_bytes = excluded.size_bytes,
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language = excluded.language,
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status = 'uploaded',
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error_message = NULL,
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updated_at = excluded.updated_at
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""",
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(
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normalized_hash,
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title,
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filename,
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stored_filename,
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content_type,
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size_bytes,
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language,
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created_at,
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now,
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),
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)
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def mark_processing(self, video_hash: str) -> None:
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self._update_status(video_hash, "processing", None)
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def mark_failed(self, video_hash: str, message: str) -> None:
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self._update_status(video_hash, "failed", message[:4000])
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def _update_status(self, video_hash: str, status: str, error_message: Optional[str]) -> None:
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with self._connect() as connection:
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connection.execute(
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"UPDATE videos SET status = ?, error_message = ?, updated_at = ? WHERE video_hash = ?",
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(status, error_message, utc_now(), normalize_video_hash(video_hash)),
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)
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def save_processing_result(
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self,
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document: SentenceBoundaryDocument,
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transcription: Optional[str],
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) -> None:
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with self._connect() as connection:
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connection.execute(
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"DELETE FROM sentences WHERE video_hash = ?",
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(document.video_hash,),
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)
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connection.executemany(
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"""
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INSERT INTO sentences (
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video_hash, sentence_index, start_ms, end_ms, text,
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language, reference_speech_duration_ms
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) VALUES (?, ?, ?, ?, ?, ?, ?)
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""",
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[
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(
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document.video_hash,
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sentence.index,
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sentence.start_ms,
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sentence.end_ms,
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sentence.text,
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sentence.language,
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sentence.reference_speech_duration_ms,
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)
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for sentence in document.sentences
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],
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)
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connection.execute(
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"""
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UPDATE videos SET duration_ms = ?, status = 'ready', error_message = NULL,
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algorithm_version = ?, transcription = ?, updated_at = ?
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WHERE video_hash = ?
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""",
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(
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document.duration_ms,
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document.algorithm_version,
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transcription,
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utc_now(),
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document.video_hash,
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),
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)
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def list_videos(self) -> List[Dict[str, Any]]:
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with self._connect() as connection:
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rows = connection.execute(
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"""
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SELECT v.*, COUNT(s.sentence_index) AS sentence_count
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FROM videos v
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LEFT JOIN sentences s ON s.video_hash = v.video_hash
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GROUP BY v.video_hash
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ORDER BY v.created_at DESC
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"""
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).fetchall()
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return [dict(row) for row in rows]
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def get_video(self, video_hash: str) -> Optional[Dict[str, Any]]:
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with self._connect() as connection:
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row = connection.execute(
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"""
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SELECT v.*, COUNT(s.sentence_index) AS sentence_count
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FROM videos v
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LEFT JOIN sentences s ON s.video_hash = v.video_hash
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WHERE v.video_hash = ?
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GROUP BY v.video_hash
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""",
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(normalize_video_hash(video_hash),),
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).fetchone()
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return dict(row) if row else None
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def get_document(self, video_hash: str) -> Optional[SentenceBoundaryDocument]:
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video = self.get_video(video_hash)
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if video is None or video["duration_ms"] is None:
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return None
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with self._connect() as connection:
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rows = connection.execute(
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"SELECT * FROM sentences WHERE video_hash = ? ORDER BY sentence_index",
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(normalize_video_hash(video_hash),),
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).fetchall()
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return SentenceBoundaryDocument(
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video_hash=video["video_hash"],
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duration_ms=video["duration_ms"],
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algorithm_version=video["algorithm_version"] or "unknown",
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sentences=[
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SentenceBoundary(
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index=row["sentence_index"],
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start_ms=row["start_ms"],
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end_ms=row["end_ms"],
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text=row["text"],
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language=row["language"],
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reference_speech_duration_ms=row["reference_speech_duration_ms"],
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)
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for row in rows
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],
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)
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def update_sentence_text(
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self,
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video_hash: str,
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sentence_index: int,
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text: str,
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language: Optional[str],
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) -> Optional[SentenceBoundary]:
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normalized_hash = normalize_video_hash(video_hash)
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with self._connect() as connection:
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cursor = connection.execute(
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"""
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UPDATE sentences SET text = ?, language = COALESCE(?, language)
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WHERE video_hash = ? AND sentence_index = ?
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""",
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(text.strip(), language, normalized_hash, sentence_index),
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)
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if cursor.rowcount == 0:
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return None
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connection.execute(
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"UPDATE videos SET updated_at = ? WHERE video_hash = ?",
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(utc_now(), normalized_hash),
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)
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row = connection.execute(
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"SELECT * FROM sentences WHERE video_hash = ? AND sentence_index = ?",
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(normalized_hash, sentence_index),
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).fetchone()
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return SentenceBoundary(
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index=row["sentence_index"],
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start_ms=row["start_ms"],
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end_ms=row["end_ms"],
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text=row["text"],
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language=row["language"],
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reference_speech_duration_ms=row["reference_speech_duration_ms"],
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)
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def create_dub_share(
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self,
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*,
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video_hash: str,
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title: str,
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segments: List[Dict[str, Any]],
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) -> Optional[Dict[str, Any]]:
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normalized_hash = normalize_video_hash(video_hash)
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if self.get_video(normalized_hash) is None:
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return None
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share_id = uuid.uuid4().hex
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now = utc_now()
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with self._connect() as connection:
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connection.execute(
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"""
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INSERT INTO dub_shares (share_id, video_hash, title, created_at)
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VALUES (?, ?, ?, ?)
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""",
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(share_id, normalized_hash, title[:200], now),
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)
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connection.executemany(
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"""
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INSERT INTO dub_share_segments (
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share_id, sentence_index, start_ms, end_ms, text,
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audio_filename, audio_size_bytes
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) VALUES (?, ?, ?, ?, ?, ?, ?)
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""",
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[
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(
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share_id,
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segment["sentence_index"],
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segment["start_ms"],
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segment["end_ms"],
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segment["text"],
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segment["audio_filename"],
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segment["audio_size_bytes"],
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)
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for segment in segments
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],
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)
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return {
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"share_id": share_id,
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"video_hash": normalized_hash,
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"title": title[:200],
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"created_at": now,
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}
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def get_dub_share(self, share_id: str) -> Optional[Dict[str, Any]]:
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with self._connect() as connection:
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share = connection.execute(
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"SELECT * FROM dub_shares WHERE share_id = ?", (share_id,)
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).fetchone()
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if share is None:
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return None
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rows = connection.execute(
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"""
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SELECT * FROM dub_share_segments
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WHERE share_id = ?
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ORDER BY sentence_index
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""",
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(share_id,),
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).fetchall()
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result = dict(share)
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result["segments"] = [dict(row) for row in rows]
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return result
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def record_attempt(
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self,
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*,
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attempt_id: str,
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video_hash: str,
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sentence_index: int,
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result: Dict[str, Any],
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audio_filename: Optional[str],
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) -> None:
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with self._connect() as connection:
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connection.execute(
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"""
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INSERT INTO attempts (
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attempt_id, video_hash, sentence_index, result_json,
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audio_filename, created_at
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) VALUES (?, ?, ?, ?, ?, ?)
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""",
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(
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attempt_id,
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normalize_video_hash(video_hash),
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sentence_index,
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json.dumps(result, ensure_ascii=False),
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audio_filename,
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utc_now(),
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),
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)
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def delete_video(self, video_hash: str) -> Optional[Dict[str, Any]]:
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video = self.get_video(video_hash)
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if video is None:
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return None
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with self._connect() as connection:
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connection.execute(
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"DELETE FROM videos WHERE video_hash = ?",
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(normalize_video_hash(video_hash),),
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)
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return video
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