import asyncio
import json
import logging
from datetime import datetime, timezone
from pathlib import Path
try:
import uvloop # type: ignore
asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
except Exception:
pass
from mcp.server.fastmcp import FastMCP
from mcp.types import TextContent
from tools.card_lookup import lookup as mtg_lookup, CardLookupError
APP_VERSION = "0.1.0"
BASE_DIR = Path(__file__).resolve().parent.parent
LOG_DIR = BASE_DIR / "logs"
LOG_DIR.mkdir(parents=True, exist_ok=True)
STREAK_FILE = BASE_DIR / "streak.json"
logging.basicConfig(
level=logging.INFO,
format="%(asctime)s | %(levelname)s | %(name)s | %(message)s",
handlers=[
logging.FileHandler(LOG_DIR / "week1.log"),
logging.StreamHandler()
]
)
logger = logging.getLogger("mcp-mtg-week1")
mcp = FastMCP("mcp-mtg-week1")
def _load_streak() -> int:
if STREAK_FILE.exists():
try:
data = json.loads(STREAK_FILE.read_text())
return int(data.get("streak_days", 0))
except Exception:
return 0
return 0
def _save_streak(days: int) -> None:
STREAK_FILE.write_text(json.dumps({"streak_days": days}, indent=2))
@mcp.tool()
async def health_check() -> dict:
"""Return server version, current time (UTC), and learning streak days."""
now = datetime.now(timezone.utc).isoformat()
days = _load_streak()
# Nudge the counter once per run (simple Day-1 behavior)
_save_streak(days + 1)
payload = {"version": APP_VERSION, "now": now, "streak_days": days + 1}
logger.info("health.check -> %s", payload)
return payload
@mcp.tool()
async def mtg_card_lookup(name: str) -> dict:
"""Fuzzy-lookup a Magic card by name using Scryfall API."""
start = datetime.now(timezone.utc)
try:
result = await mtg_lookup(name=name)
logger.info("mtg.card_lookup name=%r -> ok", name)
return result
except CardLookupError as e:
logger.warning("mtg.card_lookup name=%r -> %s: %s", name, e.error_type, e)
return {
"error": e.error_type,
"message": str(e),
"query": e.query
}
finally:
end = datetime.now(timezone.utc)
elapsed_ms = int((end - start).total_seconds() * 1000)
logger.info("mtg.card_lookup elapsed_ms=%d", elapsed_ms)
def main() -> None:
mcp.run()
if __name__ == "__main__":
main()
