"""
Handle submissions to the GuardBench leaderboard.
"""

import json
import os
import tempfile
from datetime import datetime
from typing import Dict, List, Tuple
import shutil
import threading
import time

from huggingface_hub import HfApi
from datasets import load_dataset
import subprocess

from src.display.formatting import styled_error, styled_message
from src.envs import RESULTS_DATASET_ID, TOKEN, REPO_ID
from src.leaderboard.processor import process_jsonl_submission
from circleguardbench.evaluator import Evaluator
from circleguardbench.context import GuardbenchContext
from circleguardbench.models_config import ModelType


def validate_submission(file_path: str) -> Tuple[bool, str]:
    """
    Validate a submission file.
    """
    try:
        entries, message = process_jsonl_submission(file_path)
        if not entries:
            return False, message
        return True, "Submission is valid"
    except Exception as e:
        return False, f"Error validating submission: {e}"


def submit_entry_to_hub(entry: Dict, model_name: str, mode: str, version="v0") -> Tuple[bool, str]:
    """
    Submit a model's evaluation entry to the HuggingFace dataset. The entry is uniquely identified by model_name, mode, and version.
    """
    try:
        # Create safe model name for file path
        model_name_safe = model_name.replace("/", "_").replace(" ", "_")
        mode_safe = str(mode).replace("/", "_").replace(" ", "_").lower()

        # Create entry path in entries folder
        entry_path = f"entries/entry_{model_name_safe}_{mode_safe}_{version}.json"

        # Save entry to temporary file
        with tempfile.NamedTemporaryFile(mode='w', suffix='.json', delete=False) as temp_file:
            json.dump(entry, temp_file, indent=2)
            temp_path = temp_file.name

        # Upload file
        api = HfApi(token=TOKEN)
        api.upload_file(
            path_or_fileobj=temp_path,
            path_in_repo=entry_path,
            repo_id=RESULTS_DATASET_ID,
            repo_type="dataset",
            commit_message=f"Add evaluation entry for {model_name} (mode {mode}, version {version})"
        )

        os.unlink(temp_path)
        return True, f"Successfully uploaded evaluation entry for {model_name} (mode {mode})"
    except Exception as e:
        return False, f"Error submitting entry to dataset: {e}"


def submit_leaderboard_to_hub(entries: List[Dict], version="v0") -> Tuple[bool, str]:
    """
    Submit updated leaderboard to the HuggingFace dataset.
    """
    try:
        # Create leaderboard data
        leaderboard_data = {
            "entries": entries,
            "last_updated": datetime.now().isoformat(),
            "version": version
        }

        # Save to temporary file
        with tempfile.NamedTemporaryFile(mode='w', suffix='.json', delete=False) as temp_file:
            json.dump(leaderboard_data, temp_file, indent=2)
            temp_path = temp_file.name

        # Upload file
        api = HfApi(token=TOKEN)
        api.upload_file(
            path_or_fileobj=temp_path,
            path_in_repo=f"leaderboards/leaderboard_{version}.json",
            repo_id=RESULTS_DATASET_ID,
            repo_type="dataset",
            commit_message=f"Update leaderboard for version {version}"
        )

        os.unlink(temp_path)
        return True, "Leaderboard updated successfully"
    except Exception as e:
        return False, f"Error updating leaderboard: {e}"


def restart_space_after_delay(delay_seconds: int = 2) -> None:
    """
    Restart the Hugging Face Space after a delay.
    """
    def _restart_space():
        time.sleep(delay_seconds)
        try:
            api = HfApi(token=TOKEN)
            api.restart_space(repo_id=REPO_ID)
        except Exception as e:
            print(f"Error restarting space: {e}")

    # Start the restart in a separate thread
    thread = threading.Thread(target=_restart_space)
    thread.daemon = True
    thread.start()


def process_submission(file_path: str, metadata: Dict, version="v0") -> str:
    """
    Process a submission to the GuardBench leaderboard.
    """
    try:
        # Validate submission
        is_valid, validation_message = validate_submission(file_path)
        if not is_valid:
            return styled_error(validation_message)

        # Get GuardBench results directory path
        guardbench_dir = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), "guard-bench-submodule")
        results_dir = os.path.join(guardbench_dir, "results")
        os.makedirs(results_dir, exist_ok=True)

        # Copy submission to GuardBench results directory
        model_name = metadata.get("model_name", "unknown")
        model_name_safe = model_name.replace("/", "_").replace(" ", "_")
        guard_model_type = metadata.get("guard_model_type", "unknown")
        target_file = os.path.join(results_dir + "/circleguardbench_public", f"{model_name_safe}.jsonl")

        # Upload raw submission file
        api = HfApi(token=TOKEN)
        submission_path = f"submissions_{version}/{model_name_safe}_{datetime.now().strftime('%Y%m%d_%H%M%S')}.jsonl"
        api.upload_file(
            path_or_fileobj=file_path,
            path_in_repo=submission_path,
            repo_id=RESULTS_DATASET_ID,
            repo_type="dataset",
            commit_message=f"Add raw submission for {model_name}"
        )
        os.makedirs(results_dir + "/circleguardbench_public", exist_ok=True)

        # (f"Submission path: {submission_path}")
        # print(f"Target file: {target_file}")
        # printprint(f"Results dir: {results_dir}")


        shutil.copy2(file_path, target_file)
        # print(f"Copied file to target file: {target_file}")
        # print(f" ls /home/user/app/guard-bench-submodule/results/guardbench_dataset_1k_public/: {subprocess.check_output('ls /home/user/app/guard-bench-submodule/results/guardbench_dataset_1k_public/', shell=True).decode('utf-8')}")

        try:
            # Initialize GuardBench context
            ctx = GuardbenchContext()
            # Set results directory
            ctx.results_dir = results_dir
            # Set bench name from the results directory
            ctx.bench_name = "circleguardbench_public"
            # Load dataset
            ctx.load_dataset("whitecircle-ai/circleguardbench_public")
            # Mark as initialized
            ctx.is_initialized = True

            evaluator = Evaluator(ctx, force=True, using_cached=True)

            # Run evaluation and get entry
            evaluator.evaluate_model(model_name_safe, str(guard_model_type).lower())

            # Get the entry from results
            with open(os.path.join(results_dir + "/" + ctx.bench_name, "leaderboard.json"), 'r') as f:
                results_data = json.load(f)
                model_entry = next(
                    (entry for entry in results_data.get("entries", [])
                     if entry.get("model_name") == model_name_safe),
                    None
                )

            if not model_entry:
                return styled_error("No evaluation results found")

            # Add metadata to entry
            model_entry.update({
                "model_name": metadata.get("model_name"),  # Use original model name
                "model_type": metadata.get("model_type"),
                "guard_model_type": str(metadata.get("guard_model_type")).lower(),
                "mode": metadata.get("mode"),
                "base_model": metadata.get("base_model"),
                "revision": metadata.get("revision"),
                "precision": metadata.get("precision"),
                "weight_type": metadata.get("weight_type"),
                "version": version,
                "submission_date": datetime.now().isoformat()
            })

            # Submit entry to entries folder
            success, message = submit_entry_to_hub(model_entry, model_name, metadata.get("mode"), version)
            if not success:
                return styled_error(message)

            # Get all entries from HF dataset
            api = HfApi(token=TOKEN)
            files = api.list_repo_files(repo_id=RESULTS_DATASET_ID, repo_type="dataset")
            entry_files = [f for f in files if f.startswith("entries/") and f.endswith(f"_{version}.json")]

            all_entries = []
            for entry_file in entry_files:
                try:
                    entry_path = api.hf_hub_download(
                        repo_id=RESULTS_DATASET_ID,
                        filename=entry_file,
                        repo_type="dataset",
                    )
                    with open(entry_path, 'r') as f:
                        entry_data = json.load(f)
                        all_entries.append(entry_data)
                except Exception as e:
                    print(f"Error loading entry {entry_file}: {e}")

            # Update leaderboard with all entries
            success, message = submit_leaderboard_to_hub(all_entries, version)
            if not success:
                return styled_error(message)

            restart_space_after_delay(5)

            return styled_message("Submission successful! Model evaluated and leaderboard updated.")

        except Exception as eval_error:
            return styled_error(f"Error during evaluation: {eval_error}")

    except Exception as e:
        return styled_error(f"Error processing submission: {e}")
    finally:
        # Clean up temporary files
        try:
            if os.path.exists(file_path):
                os.remove(file_path)
            if os.path.exists(target_file):
                os.remove(target_file)
        except:
            pass