"""
Clean chatbot arena battle log.

Usage:
python3 clean_battle_data.py --mode conv_release
"""
import argparse
import datetime
import json
import os
import sys
from pytz import timezone
import time
import PIL
from PIL import ImageFile
ImageFile.LOAD_TRUNCATED_IMAGES = True

from tqdm import tqdm

from .basic_stats import get_log_files, NUM_SERVERS, LOG_ROOT_DIR
from .utils import detect_language, get_time_stamp_from_date

VOTES = ["tievote", "leftvote", "rightvote", "bothbad_vote"]

def parse_model_name(model_name):
    return NotImplementedError()
    return model_source, model_name, model_type

def remove_html(raw):
    if raw.startswith("<h3>"):
        return raw[raw.find(": ") + 2 : -len("</h3>\n")]
    if raw.startswith("### Model A: ") or raw.startswith("### Model B: "):
        return raw[13:]
    return raw


def to_openai_format(messages):
    roles = ["user", "assistant"]
    ret = []
    for i, x in enumerate(messages):
        ret.append({"role": roles[i % 2], "content": x[1]})
    return ret


def replace_model_name(old_name, tstamp):
    replace_dict = {
        "PlayGroundV2": "PlayGround V2",
        "PlayGroundV2.5": "PlayGround V2.5",
        "FluxTimestep": "FLUX1schnell",
        "FluxGuidance": "FLUX1dev"
    }
    if old_name in replace_dict:
        old_name =  replace_dict[old_name]
    if "Flux" in old_name:
        print(f"Invalid model names: {old_name}")
        exit(1)
    return old_name


def read_file(filename):
    data = []
    for retry in range(5):
        try:
            # lines = open(filename).readlines()
            for l in open(filename):
                row = json.loads(l)
                if row["type"] in VOTES:
                    data.append(row)
            break
        except FileNotFoundError:
            time.sleep(2)
        except json.JSONDecodeError:
            print(f"Error in reading {filename}")
            print(row)
            exit(0)
    return data


def read_file_parallel(log_files, num_threads=16):
    data_all = []
    if num_threads == 1:
        for log_file in tqdm(log_files, desc="Reading"):
            data_all.extend(read_file(log_file))
        return data_all
    else:
        from multiprocessing import Pool

        with Pool(num_threads) as p:
            ret_all = list(tqdm(p.imap(read_file, log_files), total=len(log_files)))
            for ret in ret_all:
                data_all.extend(ret)
        return data_all

def load_image(image_path):
    try:
        return PIL.Image.open(image_path)
    except:
        return None

def clean_battle_data(
    log_files, exclude_model_names, ban_ip_list=None, sanitize_ip=False, mode="simple", task_name="image_editing"
):
    data = read_file_parallel(log_files, num_threads=1)

    convert_type = {
        "leftvote": "model_a",
        "rightvote": "model_b",
        "tievote": "tie",
        "bothbad_vote": "tie (bothbad)",
    }
    
    all_models = set()
    all_ips = dict()
    ct_anony = 0
    ct_invalid = 0
    ct_leaked_identity = 0
    ct_banned = 0
    battles = []
    for row in tqdm(data, desc="Cleaning"):
        if row["models"][0] is None or row["models"][1] is None:
            print(f"Invalid model names: {row['models']}")
            continue

        # Resolve model names
        models_public = [remove_html(row["models"][0]), remove_html(row["models"][1])]
        if "model_name" in row["states"][0]:
            models_hidden = [
                row["states"][0]["model_name"],
                row["states"][1]["model_name"],
            ]
            if models_hidden[0] is None:
                models_hidden = models_public
        else:
            models_hidden = models_public

        if (models_public[0] == "" and models_public[1] != "") or (
            models_public[1] == "" and models_public[0] != ""
        ):
            ct_invalid += 1
            print(f"Invalid model names: {models_public}")
            continue

        if models_public[0] == "" or models_public[0] == "Model A":
            anony = True
            models = models_hidden
            ct_anony += 1
        else:
            anony = False
            models = models_public
            if not models_public == models_hidden:
                print(f"Model names mismatch: {models_public} vs {models_hidden}")
                ct_invalid += 1
                continue
        
        def preprocess_model_name(m):
            if m == "Playground v2":
                return 'playground_PlayGroundV2_generation'
            if m == "Playground v2.5":
                return 'playground_PlayGroundV2.5_generation'
            return m
        models = [preprocess_model_name(m) for m in models]

        # Replace bard with palm
        if task_name == "image_editing":
            valid = True
            for _model in models:
                try:
                    platform, model_name, task = _model.split("_")
                except ValueError:
                    valid = False
                    break
                if not (platform in ["playground", "imagenhub"] and task == "edition"):
                    valid = False
                    break
            if not valid:
                ct_invalid += 1
                continue
            for i, _model in enumerate(models):
                platform, model_name, task = _model.split("_")
                models[i] = model_name

        elif task_name == "t2i_generation":
            valid = True
            for _model in models:
                try:
                    platform, model_name, task = _model.split("_")
                except ValueError:
                    valid = False
                    break
                if not (platform.lower() in ["playground", "imagenhub", 'fal'] and (task == "generation" or task == "text2image")):
                    valid = False
                    break
            if not valid:
                ct_invalid += 1
                continue
            for i, _model in enumerate(models):
                platform, model_name, task = _model.split("_")
                models[i] = model_name
            
        elif task_name == "video_generation":
            valid = True
            for _model in models:
                try:
                    platform, model_name, task = _model.split("_")
                except ValueError:
                    valid = False
                    break
                if not (platform in ["videogenhub", "fal"] and task == "generation" or task == "text2video"):
                    valid = False
                    break
            if not valid:
                ct_invalid += 1
                continue
            for i, _model in enumerate(models):
                platform, model_name, task = _model.split("_")
                models[i] = model_name

        else:
            raise ValueError(f"Invalid task_name: {task_name}")
        
        models = [replace_model_name(m, row["tstamp"]) for m in models]
        
        # Exclude certain models
        if exclude_model_names and any(x in exclude_model_names for x in models):
            ct_invalid += 1
            continue

        if mode == "conv_release":
            # assert the two images are the same
            date = datetime.datetime.fromtimestamp(row["tstamp"], tz=timezone("US/Pacific")).strftime("%Y-%m-%d") # 2024-02-29
            image_path_format = f"{LOG_ROOT_DIR}/{date}-convinput_images/input_image_"
            image_path_0 = image_path_format + str(row["states"][0]["conv_id"]) + ".png"
            image_path_1 = image_path_format + str(row["states"][1]["conv_id"]) + ".png"
            if not os.path.exists(image_path_0) or not os.path.exists(image_path_1):
                print(f"Image not found for {image_path_0} or {image_path_1}")
                ct_invalid += 1
                continue
            
            image_0 = load_image(image_path_0)
            image_1 = load_image(image_path_1)
            if image_0 is None or image_1 is None:
                print(f"Image not found for {image_path_0} or {image_path_1}")
                ct_invalid += 1
                continue
            if image_0.tobytes() != image_1.tobytes():
                print(f"Image not the same for {image_path_0} and {image_path_1}")
                ct_invalid += 1
                continue
        
        
        question_id = row["states"][0]["conv_id"]

        ip = row["ip"]
        if ip not in all_ips:
            all_ips[ip] = {"ip": ip, "count": 0, "sanitized_id": len(all_ips)}
        all_ips[ip]["count"] += 1
        if sanitize_ip:
            user_id = f"arena_user_{all_ips[ip]['sanitized_id']}"
        else:
            user_id = f"{all_ips[ip]['ip']}"

        if ban_ip_list is not None and ip in ban_ip_list:
            ct_banned += 1
            print(f"User {user_id} is banned")
            continue

        # Save the results
        battles.append(
            dict(
                question_id=question_id,
                model_a=models[0],
                model_b=models[1],
                winner=convert_type[row["type"]],
                judge=f"arena_user_{user_id}",
                anony=anony,
                tstamp=row["tstamp"],
            )
        )

        all_models.update(models_hidden)
    battles.sort(key=lambda x: x["tstamp"])
    last_updated_tstamp = battles[-1]["tstamp"]

    last_updated_datetime = datetime.datetime.fromtimestamp(
        last_updated_tstamp, tz=timezone("US/Pacific")
    ).strftime("%Y-%m-%d %H:%M:%S %Z")

    print(
        f"#votes: {len(data)}, #invalid votes: {ct_invalid}, "
        f"#leaked_identity: {ct_leaked_identity} "
        f"#banned: {ct_banned} "
    )
    print(f"#battles: {len(battles)}, #anony: {ct_anony}")
    print(f"#models: {len(all_models)}, {all_models}")
    print(f"last-updated: {last_updated_datetime}")

    if ban_ip_list is not None:
        for ban_ip in ban_ip_list:
            if ban_ip in all_ips:
                del all_ips[ban_ip]
    print("Top 30 IPs:")
    print(sorted(all_ips.values(), key=lambda x: x["count"], reverse=True)[:30])
    return battles


if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("--max-num-files", type=int)
    parser.add_argument(
        "--mode", type=str, choices=["simple", "conv_release"], default="simple"
    )
    parser.add_argument("--task_name", type=str, default="image_editing", choices=["image_editing", "t2i_generation", "video_generation"])
    parser.add_argument("--exclude-model-names", type=str, nargs="+")
    parser.add_argument("--ban-ip-file", type=str)
    parser.add_argument("--sanitize-ip", action="store_true", default=False)
    args = parser.parse_args()

    log_files = get_log_files(args.max_num_files)
    ban_ip_list = json.load(open(args.ban_ip_file)) if args.ban_ip_file else None

    battles = clean_battle_data(
        log_files, args.exclude_model_names or [], ban_ip_list, args.sanitize_ip, args.mode, args.task_name
    )
    last_updated_tstamp = battles[-1]["tstamp"]
    cutoff_date = datetime.datetime.fromtimestamp(
        last_updated_tstamp, tz=timezone("US/Pacific")
    ).strftime("%Y%m%d")

    if args.mode == "simple":
        for x in battles:
            for key in [
                "conversation_a",
                "conversation_b",
                "question_id",
            ]:
                if key in x:
                    del x[key]
        print("Samples:")
        for i in range(min(4, len(battles))):
            print(battles[i])
        output = f"clean_battle_{args.task_name}_{cutoff_date}.json"
    elif args.mode == "conv_release":
        output = f"clean_battle_{args.task_name}_conv_{cutoff_date}.json"

    with open(output, "w") as fout:
        json.dump(battles, fout, indent=2, ensure_ascii=False)
    print(f"Write cleaned data to {output}")
    
    with open("cut_off_date.txt", "w") as fout:
        fout.write(cutoff_date)