telFP4.py

import json
import logging
import os
import time
from concurrent.futures import ThreadPoolExecutor, as_completed
from typing import Any, Dict, List, Optional, Tuple, Union

import fastf1
import numpy as np
import pandas as pd
import requests

import utils

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
    handlers=[logging.FileHandler("telemetry_extraction.log"), logging.StreamHandler()],
)
logger = logging.getLogger("telemetry_extractor")
logging.getLogger("fastf1").setLevel(logging.WARNING)
logging.getLogger("fastf1").propagate = False

# Enable caching
fastf1.Cache.enable_cache("cache")

DEFAULT_YEAR = 2021
PROTO = "https"
HOST = "api.multiviewer.app"
HEADERS = {"User-Agent": f"FastF1/"}

# Global cache for session objects to prevent reloading
SESSION_CACHE = {}
CIRCUIT_INFO_CACHE = {}


class TelemetryExtractor:
    """Optimized class to handle extraction of F1 telemetry data."""

    def __init__(
        self,
        year: int = DEFAULT_YEAR,
        events: List[str] = None,
        sessions: List[str] = None,
    ):
        """Initialize the TelemetryExtractor."""
        self.year = year
        self.events = events or [
 'Emilia Romagna Grand Prix', 
     'French Grand Prix',
   
    
      
     
]
        self.sessions = sessions or  ["Practice 1" , "Practice 2", "Practice 3", "Qualifying" ,"Race"]

    def get_session(
        self, event: Union[str, int], session: str, load_telemetry: bool = False
    ) -> fastf1.core.Session:
        """Get a cached session object to prevent reloading."""
        cache_key = f"{self.year}-{event}-{session}"
        if cache_key not in SESSION_CACHE:
            f1session = fastf1.get_session(self.year, event, session)
            f1session.load(telemetry=load_telemetry, weather=False, messages=False)
            SESSION_CACHE[cache_key] = f1session
        return SESSION_CACHE[cache_key]

    def session_drivers_list(self, event: Union[str, int], session: str) -> List[str]:
        """Get list of driver codes for a given event and session."""
        try:
            f1session = self.get_session(event, session)
            return list(f1session.laps["Driver"].unique())
        except Exception as e:
            logger.error(f"Error getting driver list for {event} {session}: {str(e)}")
            return []

    def session_drivers(
        self, event: Union[str, int], session: str
    ) -> Dict[str, List[Dict[str, str]]]:
        """Get drivers available for a given event and session."""
        try:
            f1session = self.get_session(event, session)
            laps = f1session.laps
            team_colors = utils.team_colors(self.year)
            laps["color"] = laps["Team"].map(team_colors)

            unique_drivers = laps["Driver"].unique()

            drivers = [
                {
                    "driver": driver,
                    "team": laps[laps.Driver == driver].Team.iloc[0],
                }
                for driver in unique_drivers
            ]

            return {"drivers": drivers}
        except Exception as e:
            logger.error(f"Error getting drivers for {event} {session}: {str(e)}")
            return {"drivers": []}


    def laps_data(
        self, event: Union[str, int], session: str, driver: str, f1session=None
    ) -> Dict[str, List]:
        """Get lap data for a specific driver in a session."""
        try:
            if f1session is None:
                f1session = self.get_session(event, session)

            laps = f1session.laps
            driver_laps = laps.pick_drivers(driver).copy()  # Create a copy here

            # Convert lap times to seconds and handle NaN values
            lap_times = []
            for lap_time in driver_laps["LapTime"]:
                if hasattr(lap_time, "total_seconds"):
                    lap_times.append(lap_time.total_seconds())
                elif pd.isna(lap_time):  # Check if it's NaN
                    lap_times.append(None)  # Use None instead of NaN
                else:
                    lap_times.append(None)

            # Handle NaN values in compounds
            compounds = []
            for compound in driver_laps["Compound"]:
                if pd.isna(compound):
                    compounds.append(None)  # Use None instead of NaN
                else:
                    compounds.append(compound)

            return {
                "time": lap_times,
                "lap": driver_laps["LapNumber"].tolist(),
                "compound": compounds,
            }
        except Exception as e:
            logger.error(
                f"Error getting lap data for {driver} in {event} {session}: {str(e)}"
            )
            return {"time": [], "lap": [], "compound": []}

    def accCalc(
        self, telemetry: pd.DataFrame, Nax: int, Nay: int, Naz: int
    ) -> pd.DataFrame:
        """Calculate acceleration components from telemetry data."""
        # Convert speed from km/h to m/s
        vx = telemetry["Speed"] / 3.6
        time_float = telemetry["Time"] / np.timedelta64(1, "s")
        dtime = np.gradient(time_float)
        ax = np.gradient(vx) / dtime

        # Clean up outliers
        for i in np.arange(1, len(ax) - 1).astype(int):
            if ax[i] > 25:
                ax[i] = ax[i - 1]

        # Smooth x-acceleration
        ax_smooth = np.convolve(ax, np.ones((Nax,)) / Nax, mode="same")

        # Get position data
        x = telemetry["X"]
        y = telemetry["Y"]
        z = telemetry["Z"]

        # Calculate gradients
        dx = np.gradient(x)
        dy = np.gradient(y)
        dz = np.gradient(z)

        # Calculate theta (angle in xy-plane)
        theta = np.arctan2(dy, (dx + np.finfo(float).eps))
        theta[0] = theta[1]
        theta_noDiscont = np.unwrap(theta)

        # Calculate distance and curvature
        dist = telemetry["Distance"]
        ds = np.gradient(dist)
        dtheta = np.gradient(theta_noDiscont)

        # Clean up outliers
        for i in np.arange(1, len(dtheta) - 1).astype(int):
            if abs(dtheta[i]) > 0.5:
                dtheta[i] = dtheta[i - 1]

        # Calculate curvature and lateral acceleration
        C = dtheta / (ds + 0.0001)  # To avoid division by 0
        ay = np.square(vx) * C

        # Remove extreme values
        indexProblems = np.abs(ay) > 150
        ay[indexProblems] = 0

        # Smooth y-acceleration
        ay_smooth = np.convolve(ay, np.ones((Nay,)) / Nay, mode="same")

        # Calculate z-acceleration (similar process)
        z_theta = np.arctan2(dz, (dx + np.finfo(float).eps))
        z_theta[0] = z_theta[1]
        z_theta_noDiscont = np.unwrap(z_theta)

        z_dtheta = np.gradient(z_theta_noDiscont)

        # Clean up outliers
        for i in np.arange(1, len(z_dtheta) - 1).astype(int):
            if abs(z_dtheta[i]) > 0.5:
                z_dtheta[i] = z_dtheta[i - 1]

        # Calculate z-curvature and vertical acceleration
        z_C = z_dtheta / (ds + 0.0001)
        az = np.square(vx) * z_C

        # Remove extreme values
        indexProblems = np.abs(az) > 150
        az[indexProblems] = 0

        # Smooth z-acceleration
        az_smooth = np.convolve(az, np.ones((Naz,)) / Naz, mode="same")

        # Add acceleration columns to telemetry
        telemetry["Ax"] = ax_smooth
        telemetry["Ay"] = ay_smooth
        telemetry["Az"] = az_smooth

        return telemetry

    def process_lap(
        self,
        event: str,
        session: str,
        driver: str,
        lap_number: int,
        driver_dir: str,
        f1session=None,
        driver_laps=None,
    ) -> bool:
        """Process a single lap for a driver."""
        file_path = f"{driver_dir}/{lap_number}_tel.json"

        # Skip if file already exists
        if os.path.exists(file_path):
            return True

        try:
            if f1session is None:
                f1session = self.get_session(event, session, load_telemetry=True)

            if driver_laps is None:
                laps = f1session.laps
                driver_laps = laps.pick_drivers(driver)
                driver_laps["LapTime"] = driver_laps["LapTime"].apply(
                    lambda x: x.total_seconds() if hasattr(x, "total_seconds") else x
                )

            # Get the telemetry for lap_number
            selected_lap = driver_laps[driver_laps.LapNumber == lap_number]

            if selected_lap.empty:
                logger.warning(
                    f"No data for {driver} lap {lap_number} in {event} {session}"
                )
                return False

            telemetry = selected_lap.get_telemetry()
            acc_tel = self.accCalc(telemetry, 3, 9, 9)
            acc_tel["Time"] = acc_tel["Time"].dt.total_seconds()

            # Create a unique data key for this telemetry
            data_key = f"{self.year}-{event}-{session}-{driver}-{lap_number}"

            # Convert DRS and Brake to binary values
            acc_tel["DRS"] = acc_tel["DRS"].apply(
                lambda x: 1 if x in [10, 12, 14] else 0
            )
            acc_tel["Brake"] = acc_tel["Brake"].apply(lambda x: 1 if x == True else 0)

            telemetry_data = {
                "tel": {
                    "time": acc_tel["Time"].tolist(),
                    "rpm": acc_tel["RPM"].tolist(),
                    "speed": acc_tel["Speed"].tolist(),
                    "gear": acc_tel["nGear"].tolist(),
                    "throttle": acc_tel["Throttle"].tolist(),
                    "brake": acc_tel["Brake"].tolist(),
                    "drs": acc_tel["DRS"].tolist(),
                    "distance": acc_tel["Distance"].tolist(),
                    "rel_distance": acc_tel["RelativeDistance"].tolist(),
                    "acc_x": acc_tel["Ax"].tolist(),
                    "acc_y": acc_tel["Ay"].tolist(),
                    "acc_z": acc_tel["Az"].tolist(),
                    "x": acc_tel["X"].tolist(),
                    "y": acc_tel["Y"].tolist(),
                    "z": acc_tel["Z"].tolist(),
                    "dataKey": data_key,
                }
            }

            with open(file_path, "w") as json_file:
                json.dump(telemetry_data, json_file)

            return True
        except Exception as e:
            logger.error(f"Error processing lap {lap_number} for {driver}: {str(e)}")
            return False

    def get_circuit_info(self, event: str, session: str) -> Optional[Dict[str, List]]:
        """Get circuit corner information."""
        cache_key = f"{self.year}-{event}-{session}"

        if cache_key in CIRCUIT_INFO_CACHE:
            return CIRCUIT_INFO_CACHE[cache_key]

        try:
            f1session = self.get_session(event, session)
            circuit_key = f1session.session_info["Meeting"]["Circuit"]["Key"]

            # Try to get corner data from fastf1 first
            try:
                circuit_info = f1session.get_circuit_info().corners
                corner_info = {
                    "CornerNumber": circuit_info["Number"].tolist(),
                    "X": circuit_info["X"].tolist(),
                    "Y": circuit_info["Y"].tolist(),
                    "Angle": circuit_info["Angle"].tolist(),
                    "Distance": circuit_info["Distance"].tolist(),
                }
                CIRCUIT_INFO_CACHE[cache_key] = corner_info
                return corner_info
            except (AttributeError, KeyError):
                # Fall back to API method if fastf1 method fails
                circuit_info = self._get_circuit_info_from_api(circuit_key)
                if circuit_info is not None:
                    corner_info = {
                        "CornerNumber": circuit_info["Number"].tolist(),
                        "X": circuit_info["X"].tolist(),
                        "Y": circuit_info["Y"].tolist(),
                        "Angle": circuit_info["Angle"].tolist(),
                        "Distance": (circuit_info["Distance"] / 10).tolist(),
                    }
                    CIRCUIT_INFO_CACHE[cache_key] = corner_info
                    return corner_info

            logger.warning(f"Could not get corner data for {event} {session}")
            return None
        except Exception as e:
            logger.error(f"Error getting circuit info for {event} {session}: {str(e)}")
            return None

    def _get_circuit_info_from_api(self, circuit_key: int) -> Optional[pd.DataFrame]:
        """Get circuit information from the MultiViewer API."""
        url = f"{PROTO}://{HOST}/api/v1/circuits/{circuit_key}/{self.year}"
        try:
            response = requests.get(url, headers=HEADERS)
            if response.status_code != 200:
                logger.debug(f"[{response.status_code}] {response.content.decode()}")
                return None

            data = response.json()
            rows = []
            for entry in data["corners"]:
                rows.append(
                    (
                        float(entry.get("trackPosition", {}).get("x", 0.0)),
                        float(entry.get("trackPosition", {}).get("y", 0.0)),
                        int(entry.get("number", 0)),
                        str(entry.get("letter", "")),
                        float(entry.get("angle", 0.0)),
                        float(entry.get("length", 0.0)),
                    )
                )

            return pd.DataFrame(
                rows, columns=["X", "Y", "Number", "Letter", "Angle", "Distance"]
            )
        except Exception as e:
            logger.error(f"Error fetching circuit data from API: {str(e)}")
            return None

    def process_driver(
        self, event: str, session: str, driver: str, base_dir: str, f1session=None
    ) -> None:
        """Process all laps for a single driver."""
        driver_dir = f"{base_dir}/{driver}"
        os.makedirs(driver_dir, exist_ok=True)

        try:
            if f1session is None:
                f1session = self.get_session(event, session, load_telemetry=True)

            # Save lap times
            laptimes = self.laps_data(event, session, driver, f1session)
            # Replace NaN values with None before JSON serialization
            laptimes["time"] = ["None" if pd.isna(x) else x for x in laptimes["time"]]
            laptimes["lap"] = ["None" if pd.isna(x) else x for x in laptimes["lap"]]
            laptimes["compound"] = ["None" if pd.isna(x) else x for x in laptimes["compound"]]
            with open(f"{driver_dir}/laptimes.json", "w") as json_file:
                json.dump(laptimes, json_file)

            # Get driver laps
            laps = f1session.laps
            driver_laps = laps.pick_drivers(driver).copy()  # Create a copy here
            driver_laps["LapNumber"] = driver_laps["LapNumber"].astype(int)
            driver_laps["LapTime"] = driver_laps["LapTime"].apply(
                lambda x: x.total_seconds() if hasattr(x, "total_seconds") else x
            )
            lap_numbers = driver_laps["LapNumber"].tolist()

            # Process laps in parallel
            with ThreadPoolExecutor(max_workers=4) as executor:
                futures = [
                    executor.submit(
                        self.process_lap,
                        event,
                        session,
                        driver,
                        lap_number,
                        driver_dir,
                        f1session,
                        driver_laps,
                    )
                    for lap_number in lap_numbers
                ]

                for future in as_completed(futures):
                    future.result()  # Just to catch any exceptions

        except Exception as e:
            logger.error(f"Error processing driver {driver}: {str(e)}")

    def process_event_session(self, event: str, session: str) -> None:
        """Process a single event and session, extracting all telemetry data."""
        logger.info(f"Processing {event} - {session}")

        # Create base directory for this event/session
        base_dir = f"{event}/{session}"
        os.makedirs(base_dir, exist_ok=True)

        try:
            # Load session data once
            f1session = self.get_session(event, session, load_telemetry=True)

            # Save drivers information
            drivers_info = self.session_drivers(event, session)
            with open(f"{base_dir}/drivers.json", "w") as json_file:
                json.dump(drivers_info, json_file)

            # Save circuit corner information
            corner_info = self.get_circuit_info(event, session)
            if corner_info:
                with open(f"{base_dir}/corners.json", "w") as json_file:
                    json.dump(corner_info, json_file)

            # Get driver list
            drivers = self.session_drivers_list(event, session)

            # Process drivers in parallel
            with ThreadPoolExecutor(max_workers=8) as executor:
                futures = [
                    executor.submit(
                        self.process_driver, event, session, driver, base_dir, f1session
                    )
                    for driver in drivers
                ]

                for future in as_completed(futures):
                    future.result()  # Just to catch any exceptions

        except Exception as e:
            logger.error(f"Error processing {event} - {session}: {str(e)}")

    def process_all_data(self, max_workers: int = 4) -> None:
        """Process all configured events and sessions, with parallelization."""
        logger.info(f"Starting optimized telemetry extraction for {self.year} season")
        logger.info(f"Events: {self.events}")
        logger.info(f"Sessions: {self.sessions}")

        start_time = time.time()

        # Process each event and session in parallel
        with ThreadPoolExecutor(max_workers=max_workers) as executor:
            futures = []
            for event in self.events:
                for session in self.sessions:
                    futures.append(
                        executor.submit(self.process_event_session, event, session)
                    )

            # Wait for all tasks to complete
            for future in as_completed(futures):
                try:
                    future.result()
                except Exception as e:
                    logger.error(f"Error in processing task: {str(e)}")

        elapsed_time = time.time() - start_time
        logger.info(f"Telemetry extraction completed in {elapsed_time:.2f} seconds")


import gc
import logging
import os

import psutil

logger = logging.getLogger("memory_monitor")


def check_memory_usage(threshold_percent=80):
    """
    Check if memory usage exceeds threshold and clear caches if needed.

    Args:
        threshold_percent: Memory usage percentage threshold

    Returns:
        True if memory was cleared, False otherwise
    """
    process = psutil.Process(os.getpid())
    memory_info = process.memory_info()
    memory_percent = process.memory_percent()

    logger.info(
        f"Current memory usage: {memory_percent:.2f}% ({memory_info.rss / 1024 / 1024:.2f} MB)"
    )

    if memory_percent > threshold_percent:
        logger.warning(
            f"Memory usage exceeds {threshold_percent}% threshold, clearing caches"
        )
        # Clear the session cache

        SESSION_CACHE.clear()
        CIRCUIT_INFO_CACHE.clear()

        # Force garbage collection
        gc.collect()

        # Log new memory usage
        new_memory_percent = psutil.Process(os.getpid()).memory_percent()
        logger.info(
            f"New memory usage after clearing caches: {new_memory_percent:.2f}%"
        )
        return True

    return False


def is_data_available(year, events, sessions):
    """
    Check if data is available for the specified year, events, and sessions.

    Args:
        year: The F1 season year
        events: List of event names to check
        sessions: List of session names to check

    Returns:
        bool: True if data is available, False otherwise
    """
    try:
        # Try to load the first event and session as a test
        if not events or not sessions:
            logger.warning("No events or sessions specified to check")
            return False

        event = events[0]
        session = sessions[0]

        logger.info(f"Checking data availability for {year} {event} {session}...")

        # Try to get the session without loading telemetry
        f1session = fastf1.get_session(year, event, session)
        f1session.load(telemetry=False, weather=False, messages=False)

        # Check if we have lap data
        if f1session.laps.empty:
            logger.info(f"No lap data available yet for {year} {event} {session}")
            return False

        # Check if we have at least one driver
        if len(f1session.laps["Driver"].unique()) == 0:
            logger.info(f"No driver data available yet for {year} {event} {session}")
            return False

        logger.info(f"Data is available for {year} {event} {session}")
        return True

    except Exception as e:
        logger.info(f"Data not yet available: {str(e)}")
        return False


def main():
    """Main entry point for the script."""
    try:
        # Create extractor
        extractor = TelemetryExtractor()

        # Use more workers on GitHub Actions
        is_github_actions = os.environ.get("GITHUB_ACTIONS") == "true"
        max_workers = 12 if is_github_actions else 8

        # Wait for data to be available
        wait_time = 30  # seconds between checks
        max_attempts = 720  # 12 hours max wait time (720 * 60 seconds)
        attempt = 0

        logger.info(f"Starting to wait for {extractor.year} season data...")

        while attempt < max_attempts:
            if is_data_available(extractor.year, extractor.events, extractor.sessions):
                logger.info(
                    f"Data is available for {extractor.year} season. Starting extraction..."
                )
                extractor.process_all_data(max_workers=max_workers)
                break
            else:
                attempt += 1
                logger.info(
                    f"Data not yet available. Waiting {wait_time} seconds before retry ({attempt}/{max_attempts})..."
                )
                time.sleep(wait_time)

                # Check memory usage and clear if needed
                check_memory_usage()

        if attempt >= max_attempts:
            logger.error(
                f"Exceeded maximum wait time ({max_attempts * wait_time / 3600} hours). Exiting."
            )

    except Exception as e:
        logger.error(f"Error in main function: {str(e)}")
        raise


if __name__ == "__main__":
    main()