From bbf4e3e360c11606523f42428a42dcc230e29359 Mon Sep 17 00:00:00 2001
From: hajk1 <k1.tehrani@gmail.com>
Date: Mon, 18 May 2026 17:05:15 +0400
Subject: [PATCH] apply ticket changes

---
 simulator/__main__.py                         |  44 ++++++--
 .../__pycache__/__init__.cpython-311.pyc      | Bin 184 -> 0 bytes
 simulator/config/default.yaml                 |   2 +
 .../core/__pycache__/__init__.cpython-311.pyc | Bin 189 -> 0 bytes
 .../core/__pycache__/carrier.cpython-311.pyc  | Bin 2196 -> 0 bytes
 .../__pycache__/greenhouse.cpython-311.pyc    | Bin 3246 -> 0 bytes
 .../core/__pycache__/spider.cpython-311.pyc   | Bin 2766 -> 0 bytes
 .../core/__pycache__/world.cpython-311.pyc    | Bin 4679 -> 0 bytes
 simulator/core/world.py                       |   5 +-
 .../dtn/__pycache__/__init__.cpython-311.pyc  | Bin 188 -> 0 bytes
 .../dtn/__pycache__/base.cpython-311.pyc      | Bin 1039 -> 0 bytes
 .../dtn/__pycache__/epidemic.cpython-311.pyc  | Bin 1834 -> 0 bytes
 .../dtn/__pycache__/prophet.cpython-311.pyc   | Bin 3110 -> 0 bytes
 .../spray_and_wait.cpython-311.pyc            | Bin 1978 -> 0 bytes
 .../__pycache__/__init__.cpython-311.pyc      | Bin 192 -> 0 bytes
 .../__pycache__/collector.cpython-311.pyc     | Bin 3033 -> 0 bytes
 simulator/metrics/collector.py                |  25 ++++-
 storage/__pycache__/__init__.cpython-311.pyc  | Bin 182 -> 0 bytes
 .../__pycache__/__init__.cpython-311.pyc      | Bin 191 -> 0 bytes
 .../eviction/__pycache__/base.cpython-311.pyc | Bin 897 -> 0 bytes
 .../eviction/__pycache__/lru.cpython-311.pyc  | Bin 1243 -> 0 bytes
 .../__pycache__/priority.cpython-311.pyc      | Bin 1839 -> 0 bytes
 tests/__pycache__/__init__.cpython-311.pyc    | Bin 180 -> 0 bytes
 .../test_dtn.cpython-311-pytest-9.0.3.pyc     | Bin 11487 -> 0 bytes
 .../test_spider.cpython-311-pytest-9.0.3.pyc  | Bin 6856 -> 0 bytes
 .../test_storage.cpython-311-pytest-9.0.3.pyc | Bin 5631 -> 0 bytes
 .../test_world.cpython-311-pytest-9.0.3.pyc   | Bin 5861 -> 0 bytes
 tests/test_summary.py                         | 103 ++++++++++++++++++
 28 files changed, 163 insertions(+), 16 deletions(-)
 delete mode 100644 simulator/__pycache__/__init__.cpython-311.pyc
 delete mode 100644 simulator/core/__pycache__/__init__.cpython-311.pyc
 delete mode 100644 simulator/core/__pycache__/carrier.cpython-311.pyc
 delete mode 100644 simulator/core/__pycache__/greenhouse.cpython-311.pyc
 delete mode 100644 simulator/core/__pycache__/spider.cpython-311.pyc
 delete mode 100644 simulator/core/__pycache__/world.cpython-311.pyc
 delete mode 100644 simulator/dtn/__pycache__/__init__.cpython-311.pyc
 delete mode 100644 simulator/dtn/__pycache__/base.cpython-311.pyc
 delete mode 100644 simulator/dtn/__pycache__/epidemic.cpython-311.pyc
 delete mode 100644 simulator/dtn/__pycache__/prophet.cpython-311.pyc
 delete mode 100644 simulator/dtn/__pycache__/spray_and_wait.cpython-311.pyc
 delete mode 100644 simulator/metrics/__pycache__/__init__.cpython-311.pyc
 delete mode 100644 simulator/metrics/__pycache__/collector.cpython-311.pyc
 delete mode 100644 storage/__pycache__/__init__.cpython-311.pyc
 delete mode 100644 storage/eviction/__pycache__/__init__.cpython-311.pyc
 delete mode 100644 storage/eviction/__pycache__/base.cpython-311.pyc
 delete mode 100644 storage/eviction/__pycache__/lru.cpython-311.pyc
 delete mode 100644 storage/eviction/__pycache__/priority.cpython-311.pyc
 delete mode 100644 tests/__pycache__/__init__.cpython-311.pyc
 delete mode 100644 tests/__pycache__/test_dtn.cpython-311-pytest-9.0.3.pyc
 delete mode 100644 tests/__pycache__/test_spider.cpython-311-pytest-9.0.3.pyc
 delete mode 100644 tests/__pycache__/test_storage.cpython-311-pytest-9.0.3.pyc
 delete mode 100644 tests/__pycache__/test_world.cpython-311-pytest-9.0.3.pyc
 create mode 100644 tests/test_summary.py

diff --git a/simulator/__main__.py b/simulator/__main__.py
index 8b840c1..df7a7d6 100644
--- a/simulator/__main__.py
+++ b/simulator/__main__.py
@@ -1,7 +1,9 @@
-"""Entry point: python -m simulator [--config path/to/config.yaml] [--headless]"""
+"""Entry point: python -m simulator [--config FILE] [--headless] [--output FILE]"""
 from __future__ import annotations
 
 import argparse
+import json
+import logging
 import math
 import random
 
@@ -24,12 +26,11 @@
     ),
 }
 
+log = logging.getLogger(__name__)
+
 
 def _build_greenhouse(cfg: dict) -> Greenhouse:
     gh = cfg["greenhouse"]
-    rng = random.Random(42)
-
-    # Place nodes on a rough grid with jitter
     cols, rows = 5, 4
     nodes = []
     for r in range(rows):
@@ -37,10 +38,9 @@ def _build_greenhouse(cfg: dict) -> Greenhouse:
             nid = f"n{r * cols + c}"
             x = c * (gh["width"] / (cols - 1))
             y = r * (gh["height"] / (rows - 1))
-            hotspot = rng.random() if len(nodes) < gh["hotspot_count"] else 0.0
+            hotspot = random.random() if len(nodes) < gh["hotspot_count"] else 0.0
             nodes.append(Node(id=nid, x=x, y=y, hotspot=hotspot))
 
-    # Connect nearby nodes
     edges = []
     for i, a in enumerate(nodes):
         for b in nodes[i + 1:]:
@@ -82,30 +82,52 @@ def _build_world(cfg: dict) -> World:
 
 
 def main() -> None:
-    parser = argparse.ArgumentParser()
+    parser = argparse.ArgumentParser(description="RoboGreeno swarm simulator")
     parser.add_argument("--config", default="simulator/config/default.yaml")
     parser.add_argument("--headless", action="store_true", help="Run without visualization")
+    parser.add_argument("--output", metavar="FILE", help="Write run summary JSON to FILE")
     args = parser.parse_args()
 
     with open(args.config) as f:
         cfg = yaml.safe_load(f)
 
+    sim = cfg["simulation"]
+
+    log_level = getattr(logging, sim.get("log_level", "INFO").upper(), logging.INFO)
+    logging.basicConfig(level=log_level, format="%(asctime)s %(levelname)s %(name)s — %(message)s")
+
+    seed = sim.get("seed")
+    random.seed(seed)
+    log.info("seed=%s", seed if seed is not None else "random")
+
     world = _build_world(cfg)
-    ticks = cfg["simulation"]["ticks"]
+    ticks = sim["ticks"]
+    log.info("starting: ticks=%d spiders=%d carriers=%d algorithm=%s",
+             ticks, len(world.spiders), len(world.carriers), cfg["dtn"]["algorithm"])
 
     if args.headless:
         for _ in range(ticks):
             world.step()
     else:
-        renderer = Renderer(world, fps=cfg["simulation"]["fps"])
+        renderer = Renderer(world, fps=sim["fps"])
         for _ in range(ticks):
             world.step()
             if not renderer.draw(world):
                 break
 
     summary = world.metrics.summary()
-    print(f"Done — {summary['total_transfers']} transfers, "
-          f"{summary['total_bytes'] / 1024:.1f} KB delivered in {world.tick} ticks")
+    log.info(
+        "done: ticks=%d total_bytes=%.0f delivery_ratio=%.2f avg_battery=%.3f",
+        summary["ticks"],
+        summary["total_bytes"],
+        summary["delivery_ratio"],
+        summary["avg_battery_remaining"],
+    )
+
+    if args.output:
+        with open(args.output, "w") as f:
+            json.dump(summary, f, indent=2)
+        log.info("summary written to %s", args.output)
 
 
 if __name__ == "__main__":
diff --git a/simulator/__pycache__/__init__.cpython-311.pyc b/simulator/__pycache__/__init__.cpython-311.pyc
deleted file mode 100644
index 89c0db8ed9ca03e33c970bf9b0cf30e6018a0a41..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/simulator/config/default.yaml b/simulator/config/default.yaml
index 83dbc44..4f920ff 100644
--- a/simulator/config/default.yaml
+++ b/simulator/config/default.yaml
@@ -21,3 +21,5 @@ dtn:
 simulation:
   ticks: 500
   fps: 10                    # visualization frame rate (0 = headless / max speed)
+  seed: null                 # integer → reproducible run; null → random each run
+  log_level: INFO            # DEBUG | INFO | WARNING | ERROR
diff --git a/simulator/core/__pycache__/__init__.cpython-311.pyc b/simulator/core/__pycache__/__init__.cpython-311.pyc
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diff --git a/simulator/core/__pycache__/carrier.cpython-311.pyc b/simulator/core/__pycache__/carrier.cpython-311.pyc
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diff --git a/simulator/core/world.py b/simulator/core/world.py
index a2dfc7b..90a36ec 100644
--- a/simulator/core/world.py
+++ b/simulator/core/world.py
@@ -42,9 +42,10 @@ def _accumulate_data(self) -> None:
         for spider in self.spiders:
             if not spider.alive:
                 continue
-            # Hotspot areas yield more data (exponential burst)
             burst = 1.0 + spider.node.hotspot * random.expovariate(1.0)
-            spider.accumulate_data(1024 * burst)  # ~1 KB/tick baseline
+            bytes_generated = 1024 * burst  # ~1 KB/tick baseline
+            spider.accumulate_data(bytes_generated)
+            self.metrics.record_accumulation(bytes_generated)
             spider.drain_battery(0.001)
 
     def _run_ble_exchanges(self) -> None:
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diff --git a/simulator/metrics/collector.py b/simulator/metrics/collector.py
index fdbc698..df65e93 100644
--- a/simulator/metrics/collector.py
+++ b/simulator/metrics/collector.py
@@ -7,6 +7,7 @@
 class MetricsCollector:
     transfers: list[dict] = field(default_factory=list)
     snapshots: list[dict] = field(default_factory=list)
+    total_bytes_accumulated: float = 0.0
 
     def record(self, world) -> None:
         self.snapshots.append({
@@ -30,9 +31,27 @@ def record_transfer(self, spider_id: str, carrier_id: str, bytes_: float, tick:
             "bytes": bytes_,
         })
 
+    def record_accumulation(self, bytes_: float) -> None:
+        """Track bytes generated by spiders (denominator for delivery_ratio)."""
+        self.total_bytes_accumulated += bytes_
+
     def summary(self) -> dict:
+        total_bytes = sum(t["bytes"] for t in self.transfers)
+        delivery_ratio = (
+            min(1.0, total_bytes / self.total_bytes_accumulated)
+            if self.total_bytes_accumulated > 0 else 0.0
+        )
+
+        avg_battery = 0.0
+        if self.snapshots:
+            batteries = [s["battery"] for s in self.snapshots[-1]["spiders"]]
+            avg_battery = sum(batteries) / len(batteries) if batteries else 0.0
+
+        ticks = self.snapshots[-1]["tick"] + 1 if self.snapshots else 0
+
         return {
-            "total_transfers": len(self.transfers),
-            "total_bytes": sum(t["bytes"] for t in self.transfers),
-            "ticks_recorded": len(self.snapshots),
+            "ticks": ticks,
+            "total_bytes": total_bytes,
+            "delivery_ratio": round(delivery_ratio, 4),
+            "avg_battery_remaining": round(avg_battery, 4),
         }
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diff --git a/tests/test_summary.py b/tests/test_summary.py
new file mode 100644
index 0000000..0c08222
--- /dev/null
+++ b/tests/test_summary.py
@@ -0,0 +1,103 @@
+"""Tests for issue #02 — Logging + reproducible run summary."""
+from __future__ import annotations
+
+import json
+import random
+import subprocess
+import sys
+from pathlib import Path
+
+from simulator.core.carrier import Carrier
+from simulator.core.greenhouse import Greenhouse, Node
+from simulator.core.spider import Spider
+from simulator.core.world import World
+from simulator.dtn.epidemic import EpidemicRouter
+
+_PROJECT_ROOT = Path(__file__).parent.parent
+
+
+def _run_world(seed: int | None, ticks: int = 30) -> dict:
+    """Build and run a minimal world with the given seed; return summary."""
+    random.seed(seed)
+    n0 = Node(id="n0", x=0.0, y=0.0, hotspot=0.5)
+    n1 = Node(id="n1", x=1.0, y=0.0, hotspot=0.0)
+    gh = Greenhouse(width=5, height=5, nodes=[n0, n1], edges=[("n0", "n1")])
+    spiders = [Spider(id="S0", node=random.choice([n0, n1]), storage_capacity=1_000_000)]
+    carriers = [Carrier(id="C0", node=random.choice([n0, n1]), storage_capacity=10_000_000)]
+    world = World(greenhouse=gh, spiders=spiders, carriers=carriers, router=EpidemicRouter())
+    for _ in range(ticks):
+        world.step()
+    return world.metrics.summary()
+
+
+# ── summary shape ─────────────────────────────────────────────────────────────
+
+def test_summary_has_required_keys():
+    summary = _run_world(seed=1)
+    assert set(summary) == {"ticks", "total_bytes", "delivery_ratio", "avg_battery_remaining"}
+
+
+def test_summary_ticks_matches_run_length():
+    summary = _run_world(seed=1, ticks=30)
+    assert summary["ticks"] == 30
+
+
+def test_delivery_ratio_in_valid_range():
+    summary = _run_world(seed=1, ticks=50)
+    assert 0.0 <= summary["delivery_ratio"] <= 1.0
+
+
+def test_avg_battery_remaining_in_valid_range():
+    summary = _run_world(seed=1, ticks=50)
+    assert 0.0 <= summary["avg_battery_remaining"] <= 1.0
+
+
+def test_total_bytes_positive_after_run():
+    summary = _run_world(seed=1, ticks=50)
+    assert summary["total_bytes"] >= 0.0
+
+
+# ── reproducibility ───────────────────────────────────────────────────────────
+
+def test_same_seed_produces_identical_summary():
+    s1 = _run_world(seed=42)
+    s2 = _run_world(seed=42)
+    assert s1 == s2
+
+
+def test_different_seeds_produce_different_accumulated_bytes():
+    # expovariate bursts are seeded → different seeds produce different totals
+    totals = []
+    for seed in range(5):
+        random.seed(seed)
+        n0 = Node(id="n0", x=0.0, y=0.0, hotspot=0.5)
+        n1 = Node(id="n1", x=1.0, y=0.0, hotspot=0.0)
+        gh = Greenhouse(width=5, height=5, nodes=[n0, n1], edges=[("n0", "n1")])
+        spiders = [Spider(id="S0", node=random.choice([n0, n1]), storage_capacity=1_000_000)]
+        carriers = [Carrier(id="C0", node=random.choice([n0, n1]), storage_capacity=10_000_000)]
+        world = World(greenhouse=gh, spiders=spiders, carriers=carriers, router=EpidemicRouter())
+        for _ in range(50):
+            world.step()
+        totals.append(world.metrics.total_bytes_accumulated)
+    assert len(set(totals)) > 1
+
+
+# ── --output flag (CLI) ───────────────────────────────────────────────────────
+
+def test_output_flag_writes_valid_json(tmp_path):
+    out = tmp_path / "summary.json"
+    result = subprocess.run(
+        [
+            sys.executable, "-m", "simulator",
+            "--headless",
+            "--config", str(_PROJECT_ROOT / "simulator" / "config" / "default.yaml"),
+            "--output", str(out),
+        ],
+        cwd=_PROJECT_ROOT,
+        capture_output=True,
+        timeout=60,
+    )
+    assert result.returncode == 0, result.stderr.decode()
+    assert out.exists()
+    data = json.loads(out.read_text())
+    assert set(data) == {"ticks", "total_bytes", "delivery_ratio", "avg_battery_remaining"}