Create progress.py

bot/core/progress.py

@@ -0,0 +1,38 @@
+# PATH: bot/core/progress.py
+import time
+
+class SpeedETA:
+    def __init__(self):
+        self.t0 = time.time()
+        self.last_t = self.t0
+        self.last_bytes = 0
+        self.total = 0
+
+    def update(self, done_bytes: int, total_bytes: int) -> dict:
+        now = time.time()
+        self.total = total_bytes
+        dt = max(1e-6, now - self.last_t)
+        db = done_bytes - self.last_bytes
+        speed = db / dt  # bytes/sec
+        remaining = max(0, total_bytes - done_bytes)
+        eta = remaining / max(1e-6, speed)
+        self.last_t = now
+        self.last_bytes = done_bytes
+        return {"done": done_bytes, "total": total_bytes, "speed_bps": speed, "eta_sec": eta}
+
+def human_bytes(n: float) -> str:
+    units = ["B", "KB", "MB", "GB"]
+    x = float(n)
+    for u in units:
+        if x < 1024 or u == units[-1]:
+            return f"{x:.2f}{u}"
+        x /= 1024
+    return f"{x:.2f}GB"
+
+def human_eta(sec: float) -> str:
+    s = int(max(0, sec))
+    m, s = divmod(s, 60)
+    h, m = divmod(m, 60)
+    if h: return f"{h}h {m}m"
+    if m: return f"{m}m {s}s"
+    return f"{s}s"