"""
Site Evolution Log — tracks all improvements made by evolution agents.
Appended to by sub-agents, displayed on NOC dashboard.
"""
import json, os
from datetime import datetime
from pathlib import Path

LOG_PATH = Path(os.path.expanduser("~/auto-publisher/core/evolution_log.json"))

def log_evolution(vertical: str, agent: str, feature: str, details: str, status: str = "completed"):
    """Record an evolution event."""
    log = []
    if LOG_PATH.exists():
        log = json.loads(LOG_PATH.read_text())
    
    log.append({
        "vertical": vertical,
        "agent": agent,
        "feature": feature,
        "details": details[:500],
        "status": status,
        "timestamp": datetime.now().isoformat(),
    })
    
    # Keep last 200 entries
    log = log[-200:]
    LOG_PATH.write_text(json.dumps(log, indent=2))


def get_recent_evolutions(limit: int = 20) -> list[dict]:
    """Get recent evolution events."""
    if not LOG_PATH.exists():
        return []
    log = json.loads(LOG_PATH.read_text())
    return sorted(log, key=lambda x: x["timestamp"], reverse=True)[:limit]


def get_evolution_stats() -> dict:
    """Aggregate evolution statistics."""
    if not LOG_PATH.exists():
        return {"total": 0, "by_vertical": {}, "recent": []}
    
    log = json.loads(LOG_PATH.read_text())
    by_v = {}
    for entry in log:
        v = entry["vertical"]
        by_v[v] = by_v.get(v, 0) + 1
    
    return {
        "total": len(log),
        "by_vertical": by_v,
        "latest": log[-1]["timestamp"][:19] if log else None,
        "recent": [e["feature"] for e in log[-5:]],
    }


if __name__ == "__main__":
    import argparse
    ap = argparse.ArgumentParser()
    ap.add_argument("--log", action="store_true")
    ap.add_argument("--vertical", type=str, default="all")
    ap.add_argument("--feature", type=str, default="test")
    ap.add_argument("--details", type=str, default="")
    ap.add_argument("--agent", type=str, default="manual")
    ap.add_argument("--status", type=str, default="completed")
    args = ap.parse_args()
    
    if args.log:
        log_evolution(args.vertical, args.agent, args.feature, args.details, args.status)
        print(f"Logged: {args.vertical} — {args.feature}")
    else:
        stats = get_evolution_stats()
        print(json.dumps(stats, indent=2))