Files
bambuddy/backend/app/api/routes/system.py
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maziggy 0f0fac9b32 Show database engine and version on System Information page
Display the active database backend (SQLite or PostgreSQL) and its
  version in the Database section of the System Info page. SQLite queries
  sqlite_version(), PostgreSQL queries SELECT version() and
  pg_database_size(). Helps users verify which database is in use.
2026-04-04 09:05:35 +02:00

577 lines
19 KiB
Python

"""System information API routes."""
import asyncio
import os
import platform
import time
from collections.abc import Callable
from datetime import datetime
from pathlib import Path
import psutil
from fastapi import APIRouter, Depends
from sqlalchemy import func, select
from sqlalchemy.ext.asyncio import AsyncSession
from backend.app.core.auth import RequirePermissionIfAuthEnabled
from backend.app.core.config import APP_VERSION, settings
from backend.app.core.database import get_db
from backend.app.core.permissions import Permission
from backend.app.models.archive import PrintArchive
from backend.app.models.filament import Filament
from backend.app.models.printer import Printer
from backend.app.models.project import Project
from backend.app.models.smart_plug import SmartPlug
from backend.app.models.user import User
from backend.app.services.printer_manager import printer_manager
router = APIRouter(prefix="/system", tags=["system"])
STORAGE_USAGE_CACHE_SECONDS = 300
_storage_usage_cache: dict | None = None
_storage_usage_cache_ts: float | None = None
_storage_usage_lock = asyncio.Lock()
def get_directory_size(path: Path) -> int:
"""Calculate total size of a directory in bytes."""
total = 0
try:
for entry in path.rglob("*"):
if entry.is_file():
total += entry.stat().st_size
except (PermissionError, OSError):
pass # Return partial total if directory traversal is interrupted
return total
def format_bytes(bytes_value: int) -> str:
"""Format bytes to human-readable string."""
for unit in ["B", "KB", "MB", "GB", "TB"]:
if bytes_value < 1024:
return f"{bytes_value:.1f} {unit}"
bytes_value /= 1024
return f"{bytes_value:.1f} PB"
def format_uptime(seconds: float) -> str:
"""Format uptime in seconds to human-readable string."""
days = int(seconds // 86400)
hours = int((seconds % 86400) // 3600)
minutes = int((seconds % 3600) // 60)
parts = []
if days > 0:
parts.append(f"{days}d")
if hours > 0:
parts.append(f"{hours}h")
if minutes > 0:
parts.append(f"{minutes}m")
return " ".join(parts) if parts else "< 1m"
def _is_under(path: Path, root: Path) -> bool:
try:
path.resolve().relative_to(root.resolve())
return True
except ValueError:
return False
def _get_database_paths() -> list[Path]:
from backend.app.core.db_dialect import is_sqlite
if not is_sqlite():
return [] # PostgreSQL — no local DB files
candidates = [settings.base_dir / "bambuddy.db", settings.base_dir / "bambutrack.db"]
return [path for path in candidates if path.exists()]
def _get_database_items() -> list[dict]:
items: list[dict] = []
for path in _get_database_paths():
try:
size = path.stat().st_size
except OSError:
continue
items.append(
{
"name": path.name,
"path": str(path),
"bytes": size,
"formatted": format_bytes(size),
}
)
items.sort(key=lambda item: item["bytes"], reverse=True)
return items
def _get_app_dir() -> Path:
return settings.static_dir.parent
def _get_data_dirs() -> list[Path]:
return [
settings.archive_dir,
settings.log_dir,
settings.plate_calibration_dir,
settings.base_dir / "virtual_printer",
settings.base_dir / "firmware",
]
def _is_system_path(path: Path) -> bool:
app_dir = _get_app_dir()
if not _is_under(path, app_dir):
return False
return all(not _is_under(path, data_dir) for data_dir in _get_data_dirs())
def _get_storage_rules() -> list[tuple[str, str, Callable]]:
base_dir = settings.base_dir
archive_dir = settings.archive_dir
library_dir = archive_dir / "library"
virtual_printer_dir = base_dir / "virtual_printer"
upload_dir = virtual_printer_dir / "uploads"
db_paths = set(_get_database_paths())
return [
(
"database",
"Database",
lambda path: path in db_paths,
),
(
"library_thumbnails",
"Library Thumbnails",
lambda path: _is_under(path, library_dir / "thumbnails"),
),
(
"library_files",
"Library Files",
lambda path: _is_under(path, library_dir / "files"),
),
(
"library_other",
"Library Other",
lambda path: _is_under(path, library_dir),
),
(
"archive_timelapses",
"Timelapses",
lambda path: _is_under(path, archive_dir) and "timelapse" in path.name.lower(),
),
(
"archive_thumbnails",
"Thumbnails",
lambda path: _is_under(path, archive_dir) and path.name.lower().startswith("thumbnail"),
),
(
"archive_files",
"Archives",
lambda path: _is_under(path, archive_dir),
),
(
"virtual_printer_upload_cache",
"Virtual Printer Upload Cache",
lambda path: _is_under(path, upload_dir / "cache"),
),
(
"virtual_printer_uploads",
"Virtual Printer Uploads",
lambda path: _is_under(path, upload_dir),
),
(
"virtual_printer_certs",
"Virtual Printer Certs",
lambda path: _is_under(path, virtual_printer_dir / "certs"),
),
(
"virtual_printer_other",
"Virtual Printer Other",
lambda path: _is_under(path, virtual_printer_dir),
),
(
"downloads",
"Downloads",
lambda path: _is_under(path, base_dir / "firmware"),
),
(
"plate_calibration",
"Plate Calibration",
lambda path: _is_under(path, settings.plate_calibration_dir),
),
(
"logs",
"Logs",
lambda path: _is_under(path, settings.log_dir),
),
]
def _classify_file(path: Path, rules: list[tuple[str, str, Callable]]) -> tuple[str, str]:
for key, label, matcher in rules:
try:
if matcher(path):
return key, label
except OSError:
continue
return "other_data", "Other"
def _format_percentage(part: int, total: int) -> float:
if total <= 0:
return 0.0
return round((part / total) * 100, 2)
def _get_other_bucket(path: Path, base_dir: Path) -> str:
try:
relative = path.resolve().relative_to(base_dir.resolve())
except ValueError:
return path.parent.name or path.name
parts = relative.parts
return parts[0] if parts else path.name
def _walk_files(roots: list[Path]) -> list[Path]:
files: list[Path] = []
stack = [root for root in roots if root.exists()]
while stack:
current = stack.pop()
try:
with os.scandir(current) as entries:
for entry in entries:
try:
if entry.is_symlink():
continue
if entry.is_dir(follow_symlinks=False):
stack.append(Path(entry.path))
elif entry.is_file(follow_symlinks=False):
files.append(Path(entry.path))
except OSError:
continue
except OSError:
continue
return files
def _scan_storage_usage() -> dict:
base_dir = settings.base_dir
rules = _get_storage_rules()
roots = _get_data_dirs()
seen_roots = set()
unique_roots = []
for root in roots:
resolved = root.resolve()
if resolved not in seen_roots:
seen_roots.add(resolved)
unique_roots.append(root)
total_bytes = 0
error_count = 0
category_sizes: dict[str, dict] = {}
other_breakdown: dict[tuple[str, str], int] = {}
database_items = _get_database_items()
files = _walk_files(unique_roots)
for file_path in files:
try:
size = file_path.stat().st_size
except OSError:
error_count += 1
continue
total_bytes += size
key, label = _classify_file(file_path, rules)
if key not in category_sizes:
category_sizes[key] = {"key": key, "label": label, "bytes": 0}
category_sizes[key]["bytes"] += size
if key == "other_data":
bucket = _get_other_bucket(file_path, base_dir)
kind = "system" if _is_system_path(file_path) else "data"
other_breakdown[(bucket, kind)] = other_breakdown.get((bucket, kind), 0) + size
for item in database_items:
total_bytes += item["bytes"]
key = "database"
label = "Database"
if key not in category_sizes:
category_sizes[key] = {"key": key, "label": label, "bytes": 0}
category_sizes[key]["bytes"] += item["bytes"]
categories = []
for item in category_sizes.values():
bytes_value = item["bytes"]
categories.append(
{
"key": item["key"],
"label": item["label"],
"bytes": bytes_value,
"formatted": format_bytes(bytes_value),
"percent_of_total": _format_percentage(bytes_value, total_bytes),
}
)
categories.sort(key=lambda entry: entry["bytes"], reverse=True)
other_items = []
for (bucket, kind), size in other_breakdown.items():
other_items.append(
{
"bucket": bucket,
"label": bucket,
"kind": kind,
"deletable": kind != "system",
"bytes": size,
"formatted": format_bytes(size),
"percent_of_total": _format_percentage(size, total_bytes),
}
)
other_items.sort(key=lambda entry: entry["bytes"], reverse=True)
return {
"roots": [str(root) for root in unique_roots],
"total_bytes": total_bytes,
"total_formatted": format_bytes(total_bytes),
"categories": categories,
"other_breakdown": other_items,
"scan_errors": error_count,
}
async def _get_storage_usage_cached(refresh: bool, max_age_seconds: int) -> dict:
global _storage_usage_cache
global _storage_usage_cache_ts
now = time.time()
if not refresh and _storage_usage_cache and _storage_usage_cache_ts is not None:
age = now - _storage_usage_cache_ts
if age < max_age_seconds:
return {
**_storage_usage_cache,
"cache": {
"hit": True,
"age_seconds": round(age, 2),
"max_age_seconds": max_age_seconds,
},
}
async with _storage_usage_lock:
now = time.time()
if not refresh and _storage_usage_cache and _storage_usage_cache_ts is not None:
age = now - _storage_usage_cache_ts
if age < max_age_seconds:
return {
**_storage_usage_cache,
"cache": {
"hit": True,
"age_seconds": round(age, 2),
"max_age_seconds": max_age_seconds,
},
}
snapshot = await asyncio.to_thread(_scan_storage_usage)
_storage_usage_cache = {
**snapshot,
"generated_at": datetime.now().isoformat(),
}
_storage_usage_cache_ts = time.time()
return {
**_storage_usage_cache,
"cache": {
"hit": False,
"age_seconds": 0,
"max_age_seconds": max_age_seconds,
},
}
@router.get("/info")
async def get_system_info(
db: AsyncSession = Depends(get_db),
_: User | None = RequirePermissionIfAuthEnabled(Permission.SYSTEM_READ),
):
"""Get comprehensive system information."""
# Database stats
archive_count = await db.scalar(select(func.count(PrintArchive.id)))
printer_count = await db.scalar(select(func.count(Printer.id)))
filament_count = await db.scalar(select(func.count(Filament.id)))
project_count = await db.scalar(select(func.count(Project.id)))
smart_plug_count = await db.scalar(select(func.count(SmartPlug.id)))
# Archive stats by status
completed_count = await db.scalar(select(func.count(PrintArchive.id)).where(PrintArchive.status == "completed"))
failed_count = await db.scalar(select(func.count(PrintArchive.id)).where(PrintArchive.status == "failed"))
printing_count = await db.scalar(select(func.count(PrintArchive.id)).where(PrintArchive.status == "printing"))
# Total print time
total_print_time = (
await db.scalar(
select(func.sum(PrintArchive.print_time_seconds)).where(PrintArchive.print_time_seconds.isnot(None))
)
or 0
)
# Total filament used
total_filament = (
await db.scalar(
select(func.sum(PrintArchive.filament_used_grams)).where(PrintArchive.filament_used_grams.isnot(None))
)
or 0
)
# Connected printers
connected_printers = []
for printer_id, client in printer_manager._clients.items():
state = client.state
if state and state.connected:
# Get printer name and model from database
result = await db.execute(select(Printer.name, Printer.model).where(Printer.id == printer_id))
row = result.first()
name = row[0] if row else f"Printer {printer_id}"
model = row[1] if row else "unknown"
connected_printers.append(
{
"id": printer_id,
"name": name,
"state": state.state,
"model": model,
}
)
# Storage info
archive_dir = settings.archive_dir
archive_size = get_directory_size(archive_dir) if archive_dir.exists() else 0
# Database info (engine type, version, size)
from backend.app.core.db_dialect import is_postgres, is_sqlite
db_engine_info: dict = {"engine": "unknown", "version": "unknown"}
db_size = 0
try:
if is_postgres():
from sqlalchemy import text
result = await db.execute(text("SELECT version()"))
pg_version_full = result.scalar() or "unknown"
# e.g. "PostgreSQL 16.2 on x86_64..." → "PostgreSQL 16.2"
pg_version = " ".join(pg_version_full.split()[:2])
result = await db.execute(text("SELECT pg_database_size(current_database())"))
db_size = result.scalar() or 0
db_engine_info = {
"engine": "PostgreSQL",
"version": pg_version,
}
elif is_sqlite():
from sqlalchemy import text
result = await db.execute(text("SELECT sqlite_version()"))
sqlite_ver = result.scalar() or "unknown"
db_path = settings.base_dir / "bambuddy.db"
db_size = db_path.stat().st_size if db_path.exists() else 0
db_engine_info = {
"engine": "SQLite",
"version": f"SQLite {sqlite_ver}",
}
except Exception:
pass
# Disk usage
disk = psutil.disk_usage(str(settings.base_dir))
# System info
memory = psutil.virtual_memory()
boot_time = datetime.fromtimestamp(psutil.boot_time())
uptime_seconds = (datetime.now() - boot_time).total_seconds()
# Python and system info
import sys
return {
"app": {
"version": APP_VERSION,
"base_dir": str(settings.base_dir),
"archive_dir": str(archive_dir),
},
"database": {
"engine": db_engine_info["engine"],
"version": db_engine_info["version"],
"archives": archive_count,
"archives_completed": completed_count,
"archives_failed": failed_count,
"archives_printing": printing_count,
"printers": printer_count,
"filaments": filament_count,
"projects": project_count,
"smart_plugs": smart_plug_count,
"total_print_time_seconds": total_print_time,
"total_print_time_formatted": format_uptime(total_print_time),
"total_filament_grams": round(total_filament, 1),
"total_filament_kg": round(total_filament / 1000, 2),
},
"printers": {
"total": printer_count,
"connected": len(connected_printers),
"connected_list": connected_printers,
},
"storage": {
"archive_size_bytes": archive_size,
"archive_size_formatted": format_bytes(archive_size),
"database_size_bytes": db_size,
"database_size_formatted": format_bytes(db_size),
"disk_total_bytes": disk.total,
"disk_total_formatted": format_bytes(disk.total),
"disk_used_bytes": disk.used,
"disk_used_formatted": format_bytes(disk.used),
"disk_free_bytes": disk.free,
"disk_free_formatted": format_bytes(disk.free),
"disk_percent_used": disk.percent,
},
"system": {
"platform": platform.system(),
"platform_release": platform.release(),
"platform_version": platform.version(),
"architecture": platform.machine(),
"hostname": platform.node(),
"python_version": sys.version.split()[0],
"uptime_seconds": uptime_seconds,
"uptime_formatted": format_uptime(uptime_seconds),
"boot_time": boot_time.isoformat(),
},
"memory": {
"total_bytes": memory.total,
"total_formatted": format_bytes(memory.total),
"available_bytes": memory.available,
"available_formatted": format_bytes(memory.available),
"used_bytes": memory.used,
"used_formatted": format_bytes(memory.used),
"percent_used": memory.percent,
},
"cpu": {
"count": psutil.cpu_count(),
"count_logical": psutil.cpu_count(logical=True),
"percent": psutil.cpu_percent(interval=0.1),
},
}
@router.get("/storage-usage")
async def get_storage_usage(
refresh: bool = False,
max_age_seconds: int = STORAGE_USAGE_CACHE_SECONDS,
_: User | None = RequirePermissionIfAuthEnabled(Permission.SYSTEM_READ),
):
"""Get storage usage breakdown for Bambuddy data directories."""
max_age_seconds = max(0, min(max_age_seconds, 3600))
return await _get_storage_usage_cached(refresh=refresh, max_age_seconds=max_age_seconds)