641 lines
17 KiB
Python
641 lines
17 KiB
Python
#!/usr/bin/env python3
|
|
"""
|
|
Terminal-Dashboard für den Statserver.
|
|
|
|
Liest dieselbe Datei wie `web/app.py` (`page_counts.json`) und zeigt
|
|
Seitenzahl, Bildanzahl, Wachstum, einen Sparkline-Verlauf und die
|
|
letzten Messwerte direkt im Terminal. Startet keinen Webserver und
|
|
benötigt keine zusätzlichen Pakete (nur curses aus der Standardlib).
|
|
|
|
Aufruf:
|
|
python3 web/tui.py # interaktiv (q beendet)
|
|
python3 web/tui.py --once # Momentaufnahme für Skripte/Logs
|
|
python3 web/tui.py --window 7d # 24h (Default) | 7d | 30d | all
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import argparse
|
|
import curses
|
|
import json
|
|
import locale
|
|
import shutil
|
|
import sys
|
|
import time
|
|
from datetime import datetime, timedelta
|
|
from pathlib import Path
|
|
|
|
DB_DATA = Path(__file__).parent / "page_counts.json"
|
|
|
|
# Muss zu EXACT_IMAGE_INTERVAL in web/app.py passen (dort per Test
|
|
# abgesichert): Bilder werden nur alle 2 Stunden exakt gezählt.
|
|
EXACT_IMAGE_INTERVAL = 2 * 60 * 60 # Sekunden
|
|
|
|
REFRESH_SECONDS = 2.0
|
|
DEFAULT_WINDOW = "24h"
|
|
WINDOWS = {
|
|
"24h": timedelta(hours=24),
|
|
"7d": timedelta(days=7),
|
|
"30d": timedelta(days=30),
|
|
"all": None,
|
|
}
|
|
WINDOW_ORDER = ("24h", "7d", "30d", "all")
|
|
WINDOW_LABELS = {
|
|
"24h": "last 24 h",
|
|
"7d": "last 7 days",
|
|
"30d": "last 30 days",
|
|
"all": "all data",
|
|
}
|
|
|
|
SPARK_BLOCKS = "▁▂▃▄▅▆▇█"
|
|
ASCII_BLOCKS = ".:-=+*#%"
|
|
|
|
TABLE_ROWS_ONCE = 15
|
|
|
|
|
|
class StatsDataError(Exception):
|
|
"""Die Statistikdatei fehlt nicht, ist aber nicht lesbar/parsebar."""
|
|
|
|
|
|
# --------------------------------------------------------------------------
|
|
# Daten
|
|
# --------------------------------------------------------------------------
|
|
|
|
def parse_timestamp(value):
|
|
"""ISO-Zeitstempel -> naive lokale datetime (oder None)."""
|
|
if not isinstance(value, str) or not value.strip():
|
|
return None
|
|
|
|
text = value.strip()
|
|
if text.endswith("Z"):
|
|
text = text[:-1] + "+00:00"
|
|
|
|
try:
|
|
timestamp = datetime.fromisoformat(text)
|
|
except ValueError:
|
|
return None
|
|
|
|
if timestamp.tzinfo is not None:
|
|
timestamp = timestamp.astimezone().replace(tzinfo=None)
|
|
|
|
return timestamp
|
|
|
|
|
|
def load_entries(path=DB_DATA):
|
|
"""
|
|
Messwerte laden, sortiert nach Zeitstempel.
|
|
|
|
Akzeptiert sowohl die Liste aus `page_counts.json` als auch das
|
|
Format der API (`{"values": [...]}`). Einträge ohne gültigen
|
|
Zeitstempel oder ohne Seitenzahl werden übersprungen.
|
|
"""
|
|
path = Path(path)
|
|
|
|
try:
|
|
raw = json.loads(path.read_text(encoding="utf-8"))
|
|
except FileNotFoundError:
|
|
return []
|
|
except OSError as exc:
|
|
raise StatsDataError(f"{path}: {exc}") from exc
|
|
except json.JSONDecodeError as exc:
|
|
raise StatsDataError(
|
|
f"{path}: invalid JSON (line {exc.lineno}: {exc.msg})"
|
|
) from exc
|
|
|
|
if isinstance(raw, dict):
|
|
raw = raw.get("values", [])
|
|
|
|
if not isinstance(raw, list):
|
|
raise StatsDataError(f"{path}: expected a JSON list of samples")
|
|
|
|
entries = []
|
|
|
|
for item in raw:
|
|
if not isinstance(item, dict):
|
|
continue
|
|
|
|
timestamp = parse_timestamp(item.get("timestamp"))
|
|
if timestamp is None:
|
|
continue
|
|
|
|
try:
|
|
count = int(item.get("count"))
|
|
except (TypeError, ValueError):
|
|
continue
|
|
|
|
entry = dict(item)
|
|
entry["timestamp"] = timestamp
|
|
entry["count"] = count
|
|
|
|
images = item.get("images")
|
|
if images is None:
|
|
entry["images"] = None
|
|
else:
|
|
try:
|
|
entry["images"] = int(images)
|
|
except (TypeError, ValueError):
|
|
entry["images"] = None
|
|
|
|
entries.append(entry)
|
|
|
|
entries.sort(key=lambda entry: entry["timestamp"])
|
|
return entries
|
|
|
|
|
|
def select_window(entries, window, now=None):
|
|
"""Nur Messwerte innerhalb des gewählten Zeitfensters."""
|
|
delta = WINDOWS.get(window, WINDOWS[DEFAULT_WINDOW])
|
|
if delta is None:
|
|
return list(entries)
|
|
|
|
now = now or datetime.now()
|
|
cutoff = now - delta
|
|
return [entry for entry in entries if entry["timestamp"] >= cutoff]
|
|
|
|
|
|
def latest_images(entries):
|
|
"""
|
|
(images, images_exact, timestamp) des neuesten Eintrags mit
|
|
Bildanzahl. Ältere Dateien haben kein `images`-Feld -> None.
|
|
"""
|
|
for entry in reversed(entries):
|
|
if entry.get("images") is not None:
|
|
return (
|
|
entry["images"],
|
|
entry.get("images_exact") is True,
|
|
entry["timestamp"],
|
|
)
|
|
return None, False, None
|
|
|
|
|
|
def next_exact_text(entries, now):
|
|
"""Wann die nächste exakte Bildzählung fällig ist."""
|
|
last_exact = None
|
|
|
|
for entry in reversed(entries):
|
|
if entry.get("images_exact") is True:
|
|
last_exact = entry["timestamp"]
|
|
break
|
|
|
|
if last_exact is None:
|
|
return "no exact count yet"
|
|
|
|
remaining = EXACT_IMAGE_INTERVAL - (now - last_exact).total_seconds()
|
|
if remaining <= 0:
|
|
return "exact count due now"
|
|
return f"next exact in {fmt_duration(remaining)}"
|
|
|
|
|
|
# --------------------------------------------------------------------------
|
|
# Formatierung
|
|
# --------------------------------------------------------------------------
|
|
|
|
def fmt_int(value):
|
|
if value is None:
|
|
return "-"
|
|
return f"{int(value):,}".replace(",", ".")
|
|
|
|
|
|
def fmt_delta(value):
|
|
if value is None:
|
|
return "-"
|
|
value = int(value)
|
|
if value == 0:
|
|
return "0"
|
|
if value > 0:
|
|
return "+" + fmt_int(value)
|
|
return "-" + fmt_int(abs(value))
|
|
|
|
|
|
def fmt_duration(seconds):
|
|
seconds = max(0, int(round(seconds)))
|
|
|
|
if seconds < 60:
|
|
return f"{seconds} s"
|
|
|
|
minutes = seconds // 60
|
|
if minutes < 60:
|
|
return f"{minutes} min"
|
|
|
|
hours, minutes = divmod(minutes, 60)
|
|
if hours < 24:
|
|
return f"{hours} h {minutes} min"
|
|
|
|
days, hours = divmod(hours, 24)
|
|
return f"{days} d {hours} h"
|
|
|
|
|
|
def relative_time(timestamp, now):
|
|
seconds = (now - timestamp).total_seconds()
|
|
if seconds < 5:
|
|
return "just now"
|
|
return f"{fmt_duration(seconds)} ago"
|
|
|
|
|
|
def sparkline(values, width, blocks=SPARK_BLOCKS):
|
|
"""Sparkline aus Zahlen; links mit Leerzeichen auf `width` aufgefüllt."""
|
|
if width <= 0 or not values:
|
|
return ""
|
|
|
|
values = list(values)[-width:]
|
|
low, high = min(values), max(values)
|
|
|
|
if high == low:
|
|
chars = [blocks[len(blocks) // 2]] * len(values)
|
|
else:
|
|
span = high - low
|
|
last = len(blocks) - 1
|
|
chars = [
|
|
blocks[min(last, int((value - low) / span * last + 0.5))]
|
|
for value in values
|
|
]
|
|
|
|
return " " * (width - len(values)) + "".join(chars)
|
|
|
|
|
|
def _fit(text, width):
|
|
return text[:max(0, width)]
|
|
|
|
|
|
def _samples_label(count):
|
|
return f"{count} sample" if count == 1 else f"{count} samples"
|
|
|
|
|
|
def _rate(window_entries):
|
|
"""Wachstum in Seiten pro Stunde (None bei < 2 Messwerten)."""
|
|
if len(window_entries) < 2:
|
|
return None
|
|
|
|
first, last = window_entries[0], window_entries[-1]
|
|
hours = (last["timestamp"] - first["timestamp"]).total_seconds() / 3600
|
|
|
|
if hours <= 0:
|
|
return None
|
|
|
|
return (last["count"] - first["count"]) / hours
|
|
|
|
|
|
def _deltas(entries):
|
|
"""Änderung der Seitenzahl gegenüber dem vorherigen Messwert."""
|
|
result = {}
|
|
previous = None
|
|
|
|
for entry in entries:
|
|
result[id(entry)] = (
|
|
None if previous is None else entry["count"] - previous
|
|
)
|
|
previous = entry["count"]
|
|
|
|
return result
|
|
|
|
|
|
def _time_label(timestamp, now, compact):
|
|
if compact:
|
|
return timestamp.strftime("%H:%M")
|
|
if timestamp.date() == now.date():
|
|
return timestamp.strftime("%H:%M")
|
|
return timestamp.strftime("%d.%m. %H:%M")
|
|
|
|
|
|
def _table_line(time_text, pages, delta, images, flag, compact):
|
|
if compact:
|
|
return (
|
|
f" {time_text:<6} {pages:>10} {delta:>8}"
|
|
f" {images:>6} {flag}"
|
|
)
|
|
return (
|
|
f" {time_text:<13} {pages:>12} {delta:>9}"
|
|
f" {images:>10} {flag}"
|
|
)
|
|
|
|
|
|
def _build_table(window_entries, delta_by_id, now, width, limit):
|
|
"""Neueste Messwerte zuerst; Kopfzeile als erste Zeile."""
|
|
compact = width < 62
|
|
header = _table_line(
|
|
"Time",
|
|
"Pages",
|
|
"Chg" if compact else "Change",
|
|
"Images",
|
|
"",
|
|
compact,
|
|
)
|
|
|
|
rows = []
|
|
newest_first = list(reversed(window_entries))
|
|
|
|
for entry in newest_first[:limit]:
|
|
flag = ""
|
|
if entry.get("images") is not None:
|
|
flag = "exact" if entry.get("images_exact") is True else "est."
|
|
|
|
rows.append(_table_line(
|
|
_time_label(entry["timestamp"], now, compact),
|
|
fmt_int(entry["count"]),
|
|
fmt_delta(delta_by_id.get(id(entry))),
|
|
fmt_int(entry.get("images")),
|
|
flag,
|
|
compact,
|
|
))
|
|
|
|
return header, rows
|
|
|
|
|
|
# --------------------------------------------------------------------------
|
|
# Darstellung
|
|
# --------------------------------------------------------------------------
|
|
|
|
def render_dashboard(entries, window=DEFAULT_WINDOW, now=None, width=80,
|
|
rows=None, source=None, error=None,
|
|
blocks=SPARK_BLOCKS):
|
|
"""
|
|
Dashboard als Liste von Textzeilen.
|
|
|
|
Reine Funktion ohne curses: dadurch testbar und auch für `--once`
|
|
bzw. Umleitungen nutzbar. `rows` begrenzt die Höhe (Terminal);
|
|
ohne Angabe werden bis zu 15 Messwerte angezeigt.
|
|
"""
|
|
now = now or datetime.now()
|
|
width = max(24, int(width))
|
|
source = str(source or DB_DATA)
|
|
|
|
lines = [_fit(" JonasSearch stats", width)]
|
|
|
|
if error:
|
|
lines.append("")
|
|
lines.append(_fit(f" ! {error}", width))
|
|
lines.append("")
|
|
lines.append(_fit(" q quit | r retry", width))
|
|
return lines[:rows] if rows else lines
|
|
|
|
if not entries:
|
|
lines.append("")
|
|
lines.append(_fit(" No samples yet.", width))
|
|
lines.append(_fit(f" Waiting for the collector to write {source}", width))
|
|
lines.append("")
|
|
lines.append(_fit(" q quit | r reload", width))
|
|
return lines[:rows] if rows else lines
|
|
|
|
latest = entries[-1]
|
|
previous = entries[-2] if len(entries) > 1 else None
|
|
delta = None if previous is None else latest["count"] - previous["count"]
|
|
|
|
window_entries = select_window(entries, window, now)
|
|
window_note = ""
|
|
if not window_entries:
|
|
window_entries = [latest]
|
|
window_note = " (no recent samples)"
|
|
|
|
rate = _rate(window_entries)
|
|
images, images_exact, images_ts = latest_images(entries)
|
|
|
|
lines.append(_fit(
|
|
f" updated {latest['timestamp']:%d.%m.%Y %H:%M:%S}"
|
|
f" ({relative_time(latest['timestamp'], now)})",
|
|
width,
|
|
))
|
|
lines.append("")
|
|
|
|
lines.append(_fit(f" Pages {fmt_int(latest['count'])}", width))
|
|
|
|
growth = [fmt_delta(delta) + " since previous" if delta is not None
|
|
else "first sample"]
|
|
if rate is not None:
|
|
growth.append(
|
|
f"{fmt_delta(round(rate))}/h over {WINDOW_LABELS[window]}"
|
|
f" ({_samples_label(len(window_entries))})"
|
|
)
|
|
lines.append(_fit(" " + " | ".join(growth), width))
|
|
lines.append("")
|
|
|
|
lines.append(_fit(f" Images {fmt_int(images)}", width))
|
|
|
|
if images is None:
|
|
images_detail = "not counted yet"
|
|
else:
|
|
kind = "exact" if images_exact else "estimated"
|
|
images_detail = (
|
|
f"{kind} | counted {images_ts:%H:%M} | exact every 2 h"
|
|
f" | {next_exact_text(entries, now)}"
|
|
)
|
|
lines.append(_fit(" " + images_detail, width))
|
|
lines.append("")
|
|
|
|
values = [entry["count"] for entry in window_entries]
|
|
low, high = min(values), max(values)
|
|
lines.append(_fit(
|
|
f" Pages | {WINDOW_LABELS[window]}{window_note}"
|
|
f" | {_samples_label(len(window_entries))}",
|
|
width,
|
|
))
|
|
|
|
range_text = f" ({fmt_int(low)} - {fmt_int(high)})"
|
|
spark_width = max(8, min(64, width - len(range_text) - 2))
|
|
spark = sparkline(values, spark_width, blocks)
|
|
lines.append(_fit(" " + spark + range_text, width))
|
|
|
|
delta_by_id = _deltas(entries)
|
|
footer = ["", _fit(
|
|
f" q quit | r reload | t window ({window}) | file: {source}",
|
|
width,
|
|
)]
|
|
|
|
if rows is None:
|
|
limit = TABLE_ROWS_ONCE
|
|
else:
|
|
# 3 Zeilen Overhead: Leerzeile, "Recent samples", Tabellenkopf
|
|
limit = max(0, rows - len(lines) - len(footer) - 3)
|
|
|
|
if limit > 0:
|
|
header, table = _build_table(
|
|
window_entries, delta_by_id, now, width, limit
|
|
)
|
|
lines += ["", _fit(" Recent samples", width), _fit(header, width)]
|
|
lines += [_fit(row, width) for row in table]
|
|
|
|
lines += footer
|
|
|
|
if rows is not None and len(lines) > rows:
|
|
# Sehr kleines Terminal: Kerninfo kürzen, Footer unten halten.
|
|
lines = lines[:max(0, rows - 1)] + [lines[-1]]
|
|
|
|
return lines
|
|
|
|
|
|
# --------------------------------------------------------------------------
|
|
# Interaktiv / einmalig
|
|
# --------------------------------------------------------------------------
|
|
|
|
def _blocks_for(args):
|
|
if args.ascii:
|
|
return ASCII_BLOCKS
|
|
|
|
encoding = (getattr(sys.stdout, "encoding", None) or "").lower()
|
|
return SPARK_BLOCKS if "utf" in encoding else ASCII_BLOCKS
|
|
|
|
|
|
def _render(args, entries, now, width, rows=None):
|
|
return render_dashboard(
|
|
entries,
|
|
window=args.window,
|
|
now=now,
|
|
width=width,
|
|
rows=rows,
|
|
source=args.file,
|
|
blocks=_blocks_for(args),
|
|
)
|
|
|
|
|
|
def emit_once(args, stream=None, errors=None):
|
|
"""Momentaufnahme ausgeben (kein curses). Rückgabe: Exit-Code."""
|
|
stream = stream or sys.stdout
|
|
errors = errors or sys.stderr
|
|
|
|
try:
|
|
entries = load_entries(args.file)
|
|
except StatsDataError as exc:
|
|
errors.write(f"error: {exc}\n")
|
|
return 1
|
|
|
|
width = args.width or shutil.get_terminal_size((80, 24)).columns
|
|
lines = _render(args, entries, datetime.now(), width)
|
|
stream.write("\n".join(lines) + "\n")
|
|
return 0
|
|
|
|
|
|
def next_window(window):
|
|
try:
|
|
index = WINDOW_ORDER.index(window)
|
|
except ValueError:
|
|
index = 0
|
|
return WINDOW_ORDER[(index + 1) % len(WINDOW_ORDER)]
|
|
|
|
|
|
def run_interactive(args):
|
|
try:
|
|
curses.wrapper(_interactive_loop, args)
|
|
except KeyboardInterrupt:
|
|
pass
|
|
except curses.error as exc:
|
|
print(
|
|
f"Terminal-Dashboard nicht möglich ({exc}); "
|
|
f"gebe Momentaufnahme aus.",
|
|
file=sys.stderr,
|
|
)
|
|
return emit_once(args)
|
|
|
|
return 0
|
|
|
|
|
|
def _interactive_loop(stdscr, args):
|
|
try:
|
|
curses.curs_set(0)
|
|
except curses.error:
|
|
pass
|
|
|
|
stdscr.timeout(max(50, int(args.interval * 1000)))
|
|
|
|
entries = []
|
|
error = None
|
|
loaded_at = 0.0
|
|
window = args.window
|
|
|
|
while True:
|
|
monotonic_now = time.monotonic()
|
|
|
|
if monotonic_now - loaded_at >= args.interval:
|
|
try:
|
|
entries = load_entries(args.file)
|
|
error = None
|
|
except StatsDataError as exc:
|
|
error = str(exc)
|
|
loaded_at = monotonic_now
|
|
|
|
height, width = stdscr.getmaxyx()
|
|
lines = render_dashboard(
|
|
entries,
|
|
window=window,
|
|
now=datetime.now(),
|
|
width=width,
|
|
rows=height,
|
|
source=args.file,
|
|
error=error,
|
|
blocks=_blocks_for(args),
|
|
)
|
|
|
|
stdscr.erase()
|
|
for index, line in enumerate(lines[:height]):
|
|
attributes = curses.A_BOLD if index == 0 else 0
|
|
try:
|
|
stdscr.addnstr(index, 0, line, max(0, width - 1), attributes)
|
|
except curses.error:
|
|
pass
|
|
stdscr.refresh()
|
|
|
|
key = stdscr.getch()
|
|
|
|
if key in (ord("q"), 27):
|
|
return
|
|
if key == ord("r"):
|
|
loaded_at = 0.0
|
|
elif key == ord("t"):
|
|
window = next_window(window)
|
|
|
|
|
|
def main(argv=None):
|
|
parser = argparse.ArgumentParser(
|
|
description=(
|
|
"Terminal-Dashboard für den Statserver "
|
|
"(liest web/page_counts.json)."
|
|
),
|
|
)
|
|
parser.add_argument(
|
|
"--file",
|
|
default=str(DB_DATA),
|
|
help=f"Statistikdatei (Default: {DB_DATA})",
|
|
)
|
|
parser.add_argument(
|
|
"--window",
|
|
choices=WINDOW_ORDER,
|
|
default=DEFAULT_WINDOW,
|
|
help="Zeitfenster für Verlauf und Tabelle (Default: 24h)",
|
|
)
|
|
parser.add_argument(
|
|
"--once",
|
|
action="store_true",
|
|
help="nur einmal ausgeben und beenden",
|
|
)
|
|
parser.add_argument(
|
|
"--width",
|
|
type=int,
|
|
default=None,
|
|
help="Breite für --once (Default: Terminalbreite)",
|
|
)
|
|
parser.add_argument(
|
|
"--interval",
|
|
type=float,
|
|
default=REFRESH_SECONDS,
|
|
help=f"Reload-Intervall in Sekunden (Default: {REFRESH_SECONDS})",
|
|
)
|
|
parser.add_argument(
|
|
"--ascii",
|
|
action="store_true",
|
|
help="ASCII-Sparkline statt Unicode-Blöcke",
|
|
)
|
|
|
|
args = parser.parse_args(argv)
|
|
|
|
try:
|
|
locale.setlocale(locale.LC_ALL, "")
|
|
except locale.Error:
|
|
pass
|
|
|
|
if args.once or not (sys.stdin.isatty() and sys.stdout.isatty()):
|
|
return emit_once(args)
|
|
|
|
return run_interactive(args)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main())
|