Files
LinedanceAfspiller/linedance-app/local/sync_manager.py
2026-04-13 07:23:37 +02:00

246 lines
9.7 KiB
Python

"""
sync_manager.py — Synkronisering mellem lokal SQLite og server API.
Kører i baggrundstråd — blokerer aldrig GUI.
"""
import json
import sqlite3
import threading
import urllib.request
import urllib.error
import logging
from pathlib import Path
logger = logging.getLogger(__name__)
class SyncManager:
def __init__(self, db_path: str, server_url: str, token: str):
self._db_path = db_path
self._server_url = server_url.rstrip("/")
self._token = token
self._lock = threading.Lock()
def _headers(self):
return {
"Content-Type": "application/json",
"Authorization": f"Bearer {self._token}",
}
def _post(self, path: str, data: dict) -> dict:
body = json.dumps(data).encode("utf-8")
req = urllib.request.Request(
f"{self._server_url}{path}", data=body,
headers=self._headers(), method="POST"
)
try:
with urllib.request.urlopen(req, timeout=30) as resp:
return json.loads(resp.read())
except urllib.error.HTTPError as e:
detail = e.read().decode("utf-8", errors="replace")
raise Exception(f"HTTP {e.code}: {detail}")
def _get(self, path: str) -> dict:
req = urllib.request.Request(
f"{self._server_url}{path}",
headers=self._headers(), method="GET"
)
with urllib.request.urlopen(req, timeout=30) as resp:
return json.loads(resp.read())
# ── Push ──────────────────────────────────────────────────────────────────
def push(self, on_done=None, on_error=None):
"""Push lokal data til server i baggrundstråd."""
def _run():
try:
payload = self._build_push_payload()
result = self._post("/sync/push", payload)
# Gem server-IDs lokalt
self._save_playlist_ids(result.get("playlist_id_map", {}))
logger.info(f"Sync push: {result}")
if on_done:
on_done(result)
except Exception as e:
logger.error(f"Sync push fejl: {e}")
if on_error:
on_error(str(e))
threading.Thread(target=_run, daemon=True).start()
def _save_playlist_ids(self, id_map: dict):
"""Gem server-IDs (api_project_id) på lokale playlister."""
if not id_map:
return
conn = sqlite3.connect(self._db_path)
for local_id, server_id in id_map.items():
try:
conn.execute(
"UPDATE playlists SET api_project_id=? WHERE id=?",
(server_id, int(local_id))
)
except Exception:
pass
conn.commit()
conn.close()
def pull(self, on_done=None, on_error=None):
"""Pull server-data ned i baggrundstråd."""
def _run():
try:
result = self._get("/sync/pull")
self._apply_pull(result)
logger.info(f"Sync pull: {len(result.get('dances', []))} danse")
if on_done:
on_done(result)
except Exception as e:
logger.error(f"Sync pull fejl: {e}")
if on_error:
on_error(str(e))
threading.Thread(target=_run, daemon=True).start()
def push_and_pull(self, on_done=None, on_error=None):
"""Push og derefter pull i samme tråd."""
def _run():
try:
payload = self._build_push_payload()
push_result = self._post("/sync/push", payload)
pull_result = self._get("/sync/pull")
self._apply_pull(pull_result)
if on_done:
on_done({"push": push_result, "pull": pull_result})
except Exception as e:
logger.error(f"Sync fejl: {e}")
if on_error:
on_error(str(e))
threading.Thread(target=_run, daemon=True).start()
# ── Byg payload ───────────────────────────────────────────────────────────
def _build_push_payload(self) -> dict:
conn = sqlite3.connect(self._db_path)
conn.row_factory = sqlite3.Row
# Sange
songs = []
for row in conn.execute(
"SELECT id, title, artist, album, bpm, duration_sec, file_format "
"FROM songs WHERE file_missing=0"
).fetchall():
songs.append({
"local_id": str(row["id"]),
"title": row["title"] or "",
"artist": row["artist"] or "",
"album": row["album"] or "",
"bpm": row["bpm"] or 0,
"duration_sec": row["duration_sec"] or 0,
"file_format": row["file_format"] or "",
})
# Danse
dances = []
for row in conn.execute(
"SELECT d.name, dl.name as level_name, d.choreographer, "
"d.video_url, d.stepsheet_url, d.notes "
"FROM dances d LEFT JOIN dance_levels dl ON dl.id = d.level_id"
).fetchall():
dances.append({
"name": row["name"] or "",
"level_name": row["level_name"] or "",
"choreographer": row["choreographer"] or "",
"video_url": row["video_url"] or "",
"stepsheet_url": row["stepsheet_url"] or "",
"notes": row["notes"] or "",
})
# Dans-tags per sang
song_dances = []
for row in conn.execute("""
SELECT sd.song_id, d.name as dance_name, dl.name as level_name, sd.dance_order
FROM song_dances sd
JOIN dances d ON d.id = sd.dance_id
LEFT JOIN dance_levels dl ON dl.id = d.level_id
""").fetchall():
song_dances.append({
"song_local_id": str(row["song_id"]),
"dance_name": row["dance_name"],
"level_name": row["level_name"] or "",
"dance_order": row["dance_order"],
})
# Alternativ-danse
song_alts = []
for row in conn.execute("""
SELECT sad.song_id, d.name as dance_name, dl.name as level_name, sad.note
FROM song_alt_dances sad
JOIN dances d ON d.id = sad.dance_id
LEFT JOIN dance_levels dl ON dl.id = d.level_id
""").fetchall():
song_alts.append({
"song_local_id": str(row["song_id"]),
"dance_name": row["dance_name"],
"level_name": row["level_name"] or "",
"note": row["note"] or "",
})
# Playlister (kun navngivne — ikke __aktiv__)
playlists = []
for pl in conn.execute(
"SELECT id, name, description, tags FROM playlists "
"WHERE name != '__aktiv__'"
).fetchall():
pl_songs = []
for ps in conn.execute("""
SELECT song_id, position, status, is_workshop, dance_override
FROM playlist_songs WHERE playlist_id=? ORDER BY position
""", (pl["id"],)).fetchall():
pl_songs.append({
"song_local_id": ps["song_id"] or "",
"position": int(ps["position"] or 1),
"status": ps["status"] or "pending",
"is_workshop": bool(ps["is_workshop"]),
"dance_override": ps["dance_override"] or "",
})
playlists.append({
"local_id": str(pl["id"]),
"name": pl["name"],
"description": pl["description"] or "",
"tags": pl["tags"] or "",
"visibility": "private",
"songs": pl_songs,
})
conn.close()
return {
"songs": songs,
"dances": dances,
"song_dances": song_dances,
"song_alts": song_alts,
"playlists": playlists,
}
# ── Anvend pull ───────────────────────────────────────────────────────────
def _apply_pull(self, data: dict):
"""Gem server-data lokalt — opdaterer dans-info og community forslag."""
conn = sqlite3.connect(self._db_path)
conn.row_factory = sqlite3.Row
# Opdater dans-info fra server (koreograf, links, noter)
for d in data.get("dances", []):
if not d.get("name"):
continue
existing = conn.execute(
"SELECT id FROM dances WHERE name=? COLLATE NOCASE", (d["name"],)
).fetchone()
if existing and (d.get("choreographer") or d.get("video_url") or d.get("stepsheet_url")):
conn.execute("""
UPDATE dances SET
choreographer = CASE WHEN choreographer='' THEN ? ELSE choreographer END,
video_url = CASE WHEN video_url='' THEN ? ELSE video_url END,
stepsheet_url = CASE WHEN stepsheet_url='' THEN ? ELSE stepsheet_url END
WHERE id=?
""", (d.get("choreographer",""), d.get("video_url",""),
d.get("stepsheet_url",""), existing["id"]))
conn.commit()
conn.close()