import json
import locale
import os
from pathlib import Path
import threading
from typing import Any
from uuid import uuid4

from loguru import logger

from app.models import const


def get_response(status: int, data: Any = None, message: str = ""):
    obj = {
        "status": status,
    }
    if data:
        obj["data"] = data
    if message:
        obj["message"] = message
    return obj


def to_json(obj):
    try:
        # Define a helper function to handle different types of objects
        def serialize(o):
            # If the object is a serializable type, return it directly
            if isinstance(o, (int, float, bool, str)) or o is None:
                return o
            # If the object is binary data, convert it to a base64-encoded string
            elif isinstance(o, bytes):
                return "*** binary data ***"
            # If the object is a dictionary, recursively process each key-value pair
            elif isinstance(o, dict):
                return {k: serialize(v) for k, v in o.items()}
            # If the object is a list or tuple, recursively process each element
            elif isinstance(o, (list, tuple)):
                return [serialize(item) for item in o]
            # If the object is a custom type, attempt to return its __dict__ attribute
            elif hasattr(o, "__dict__"):
                return serialize(o.__dict__)
            # Return None for other cases (or choose to raise an exception)
            else:
                return None

        # Use the serialize function to process the input object
        serialized_obj = serialize(obj)

        # Serialize the processed object into a JSON string
        return json.dumps(serialized_obj, ensure_ascii=False, indent=4)
    except Exception as e:
        logger.error(f"failed to serialize object to json: {str(e)}")
        return None


def get_uuid(remove_hyphen: bool = False):
    u = str(uuid4())
    if remove_hyphen:
        u = u.replace("-", "")
    return u


def root_dir():
    return os.path.dirname(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))


def storage_dir(sub_dir: str = "", create: bool = False):
    d = os.path.join(root_dir(), "storage")
    if sub_dir:
        d = os.path.join(d, sub_dir)
    if create and not os.path.exists(d):
        os.makedirs(d)

    return d


def resource_dir(sub_dir: str = ""):
    d = os.path.join(root_dir(), "resource")
    if sub_dir:
        d = os.path.join(d, sub_dir)
    return d


def task_dir(sub_dir: str = ""):
    d = os.path.join(storage_dir(), "tasks")
    if sub_dir:
        d = os.path.join(d, sub_dir)
    if not os.path.exists(d):
        os.makedirs(d)
    return d


def font_dir(sub_dir: str = ""):
    d = resource_dir("fonts")
    if sub_dir:
        d = os.path.join(d, sub_dir)
    if not os.path.exists(d):
        os.makedirs(d)
    return d


def song_dir(sub_dir: str = ""):
    d = resource_dir("songs")
    if sub_dir:
        d = os.path.join(d, sub_dir)
    if not os.path.exists(d):
        os.makedirs(d)
    return d


def public_dir(sub_dir: str = ""):
    d = resource_dir("public")
    if sub_dir:
        d = os.path.join(d, sub_dir)
    if not os.path.exists(d):
        os.makedirs(d)
    return d


def run_in_background(func, *args, **kwargs):
    def run():
        try:
            func(*args, **kwargs)
        except Exception as e:
            logger.error(f"run_in_background error: {e}", exc_info=True)

    thread = threading.Thread(target=run, daemon=False)
    thread.start()
    return thread


def time_convert_seconds_to_hmsm(seconds) -> str:
    hours = int(seconds // 3600)
    seconds = seconds % 3600
    minutes = int(seconds // 60)
    milliseconds = int(seconds * 1000) % 1000
    seconds = int(seconds % 60)
    return "{:02d}:{:02d}:{:02d},{:03d}".format(hours, minutes, seconds, milliseconds)


def text_to_srt(idx: int, msg: str, start_time: float, end_time: float) -> str:
    start_time = time_convert_seconds_to_hmsm(start_time)
    end_time = time_convert_seconds_to_hmsm(end_time)
    srt = """%d
%s --> %s
%s
        """ % (
        idx,
        start_time,
        end_time,
        msg,
    )
    return srt


def str_contains_punctuation(word):
    for p in const.PUNCTUATIONS:
        if p in word:
            return True
    return False


def split_string_by_punctuations(s):
    result = []
    txt = ""

    previous_char = ""
    next_char = ""
    for i in range(len(s)):
        char = s[i]
        if char == "\n":
            result.append(txt.strip())
            txt = ""
            continue

        if i > 0:
            previous_char = s[i - 1]
        if i < len(s) - 1:
            next_char = s[i + 1]

        if char == "." and previous_char.isdigit() and next_char.isdigit():
            # # In the case of "withdraw 10,000, charged at 2.5% fee", the dot in "2.5" should not be treated as a line break marker
            txt += char
            continue

        if char == "," and previous_char.isdigit() and next_char.isdigit():
            # 英文数字里的千分位逗号不是断句符，例如 "1,000 years"。
            # Edge TTS 的 word boundary 通常会把这种数字整体作为连续内容返回；
            # 如果这里拆成 "1" 和 "000 years"，后续字幕聚合会无法匹配脚本原文，
            # 进而错误回退到 Whisper。
            txt += char
            continue

        if char not in const.PUNCTUATIONS:
            txt += char
        else:
            result.append(txt.strip())
            txt = ""
    result.append(txt.strip())
    # filter empty string
    result = list(filter(None, result))
    return result


def md5(text):
    import hashlib

    return hashlib.md5(text.encode("utf-8")).hexdigest()


def get_system_locale():
    try:
        loc = locale.getdefaultlocale()
        # zh_CN, zh_TW return zh
        # en_US, en_GB return en
        language_code = loc[0].split("_")[0]
        return language_code
    except Exception:
        return "en"


def load_locales(i18n_dir):
    _locales = {}
    for root, dirs, files in os.walk(i18n_dir):
        for file in files:
            if file.endswith(".json"):
                lang = file.split(".")[0]
                with open(os.path.join(root, file), "r", encoding="utf-8") as f:
                    _locales[lang] = json.loads(f.read())
    return _locales


def parse_extension(filename):
    return Path(filename).suffix.lower().lstrip('.')
