import logging
import math
import random
import re
import string
from typing import Union
from urllib.parse import urlparse

from decouple import config

import schemas
from chalicelib.utils import smtp
from chalicelib.utils.TimeUTC import TimeUTC


def get_stage_name():
    return "OpenReplay"


def random_string(length=36):
    return "".join(random.choices(string.hexdigits, k=length))


def list_to_camel_case(items: list[dict], flatten: bool = False) -> list[dict]:
    for i in range(len(items)):
        if flatten:
            items[i] = flatten_nested_dicts(items[i])
        items[i] = dict_to_camel_case(items[i])

    return items


def dict_to_camel_case(variable, delimiter='_', ignore_keys=[]):
    if variable is None:
        return None
    if isinstance(variable, str):
        return variable
    elif isinstance(variable, dict):
        aux = {}
        for key in variable.keys():
            if key in ignore_keys:
                aux[key] = variable[key]
            elif isinstance(variable[key], dict):
                aux[key_to_camel_case(key, delimiter)] = dict_to_camel_case(variable[key])
            elif isinstance(variable[key], list):
                aux[key_to_camel_case(key, delimiter)] = list_to_camel_case(variable[key])
            else:
                aux[key_to_camel_case(key, delimiter)] = variable[key]
        return aux
    else:
        return variable


def dict_to_CAPITAL_keys(variable):
    if variable is None:
        return None
    if isinstance(variable, str):
        return variable.upper()
    elif isinstance(variable, dict):
        aux = {}
        for key in variable.keys():
            if isinstance(variable[key], dict):
                aux[key.upper()] = dict_to_CAPITAL_keys(variable[key])
            else:
                aux[key.upper()] = variable[key]
        return aux
    else:
        return variable


def variable_to_snake_case(variable, delimiter='_', split_number=False):
    if isinstance(variable, str):
        return key_to_snake_case(variable, delimiter, split_number)
    elif isinstance(variable, dict):
        aux = {}
        for key in variable.keys():
            if isinstance(variable[key], dict):
                aux[key_to_snake_case(key, delimiter, split_number)] = variable_to_snake_case(variable[key], delimiter,
                                                                                              split_number)
            else:
                aux[key_to_snake_case(key, delimiter, split_number)] = variable[key]
        return aux
    else:
        return variable


def key_to_camel_case(snake_str, delimiter='_'):
    if snake_str.startswith(delimiter):
        snake_str = snake_str[1:]
    components = snake_str.split(delimiter)
    return components[0] + ''.join(x.title() for x in components[1:])


def key_to_snake_case(name, delimiter='_', split_number=False):
    s1 = re.sub('(.)([A-Z][a-z]+)', fr'\1{delimiter}\2', name)
    return re.sub('([a-z])([A-Z0-9])' if split_number else '([a-z0-9])([A-Z])', fr'\1{delimiter}\2', s1).lower()


TRACK_TIME = True


def allow_captcha():
    return config("captcha_server", default=None) is not None and config("captcha_key", default=None) is not None \
        and len(config("captcha_server")) > 0 and len(config("captcha_key")) > 0


def string_to_sql_like(value):
    value = re.sub(' +', ' ', value)
    value = value.replace("*", "%")
    if value.startswith("^"):
        value = value[1:]
    elif not value.startswith("%"):
        value = '%' + value

    if value.endswith("$"):
        value = value[:-1]
    elif not value.endswith("%"):
        value = value + '%'
    # value = value.replace(" ", "%")
    return value


def string_to_sql_like_with_op(value, op):
    if isinstance(value, list):
        r = []
        for v in value:
            r.append(string_to_sql_like_with_op(v, op))
        return r
    else:
        _value = value
        if _value is None:
            return _value
        if op.upper() != 'ILIKE':
            return _value.replace("%", "%%")
        _value = _value.replace("*", "%")
        if _value.startswith("^"):
            _value = _value[1:]
        elif not _value.startswith("%"):
            _value = '%' + _value

        if _value.endswith("$"):
            _value = _value[:-1]
        elif not _value.endswith("%"):
            _value = _value + '%'
        return _value.replace("%", "%%")


likable_operators = [schemas.SearchEventOperator._starts_with, schemas.SearchEventOperator._ends_with,
                     schemas.SearchEventOperator._contains, schemas.SearchEventOperator._not_contains]


def is_likable(op: schemas.SearchEventOperator):
    return op in likable_operators


def values_for_operator(value: Union[str, list], op: schemas.SearchEventOperator):
    if not is_likable(op):
        return value
    if isinstance(value, list):
        r = []
        for v in value:
            r.append(values_for_operator(v, op))
        return r
    else:
        if value is None:
            return value
        if op == schemas.SearchEventOperator._starts_with:
            return f"{value}%"
        elif op == schemas.SearchEventOperator._ends_with:
            return f"%{value}"
        elif op == schemas.SearchEventOperator._contains or op == schemas.SearchEventOperator._not_contains:
            return f"%{value}%"
    return value


def is_alphabet_space_dash(word):
    r = re.compile("^[a-zA-Z -]*$")
    return r.match(word) is not None


def merge_lists_by_key(l1, l2, key):
    merged = {}
    for item in l1 + l2:
        if item[key] in merged:
            merged[item[key]].update(item)
        else:
            merged[item[key]] = item
    return [val for (_, val) in merged.items()]


def flatten_nested_dicts(obj):
    if obj is None:
        return None
    result = {}
    for key in obj.keys():
        if isinstance(obj[key], dict):
            result = {**result, **flatten_nested_dicts(obj[key])}
        else:
            result[key] = obj[key]
    return result


def delete_keys_from_dict(d, to_delete):
    if isinstance(to_delete, str):
        to_delete = [to_delete]
    if isinstance(d, dict):
        for single_to_delete in set(to_delete):
            if single_to_delete in d:
                del d[single_to_delete]
        for k, v in d.items():
            delete_keys_from_dict(v, to_delete)
    elif isinstance(d, list):
        for i in d:
            delete_keys_from_dict(i, to_delete)
    return d


def explode_widget(data, key=None):
    result = []
    for k in data.keys():
        if k.endswith("Progress") or k == "chart":
            continue
        result.append({"key": key_to_snake_case(k) if key is None else key, "data": {"value": data[k]}})
        if k + "Progress" in data:
            result[-1]["data"]["progress"] = data[k + "Progress"]
        if "chart" in data:
            result[-1]["data"]["chart"] = []
            for c in data["chart"]:
                result[-1]["data"]["chart"].append({"timestamp": c["timestamp"], "value": c[k]})
    return result


def get_issue_title(issue_type):
    return {'click_rage': "Click Rage",
            'dead_click': "Dead Click",
            'excessive_scrolling': "Excessive Scrolling",
            'bad_request': "Bad Request",
            'missing_resource': "Missing Image",
            'memory': "High Memory Usage",
            'cpu': "High CPU",
            'slow_resource': "Slow Resource",
            'slow_page_load': "Slow Page",
            'crash': "Crash",
            'ml_cpu': "High CPU",
            'ml_memory': "High Memory Usage",
            'ml_dead_click': "Dead Click",
            'ml_click_rage': "Click Rage",
            'ml_mouse_thrashing': "Mouse Thrashing",
            'ml_excessive_scrolling': "Excessive Scrolling",
            'ml_slow_resources': "Slow Resource",
            'custom': "Custom Event",
            'js_exception': "Error",
            'custom_event_error': "Custom Error",
            'js_error': "Error"}.get(issue_type, issue_type)


def __progress(old_val, new_val):
    return ((old_val - new_val) / new_val) * 100 if new_val > 0 else 0 if old_val == 0 else 100


def __decimal_limit(value, limit):
    factor = pow(10, limit)
    value = math.floor(value * factor)
    if value % factor == 0:
        return value // factor
    return value / factor


def old_search_payload_to_flat(values):
    # in case the old search body was passed
    if values.get("events") is not None:
        for v in values["events"]:
            v["isEvent"] = True
        for v in values.get("filters", []):
            v["isEvent"] = False
        values["filters"] = values.pop("events") + values.get("filters", [])
    return values


def custom_alert_to_front(values):
    # to support frontend format for payload
    if values.get("seriesId") is not None and values["query"]["left"] == schemas.AlertColumn.custom:
        values["query"]["left"] = values["seriesId"]
        values["seriesId"] = None
    return values


def __time_value(row):
    row["unit"] = schemas.TemplatePredefinedUnits.millisecond
    factor = 1
    if row["value"] > TimeUTC.MS_MINUTE:
        row["value"] = row["value"] / TimeUTC.MS_MINUTE
        row["unit"] = schemas.TemplatePredefinedUnits.minute
        factor = TimeUTC.MS_MINUTE
    elif row["value"] > 1 * 1000:
        row["value"] = row["value"] / 1000
        row["unit"] = schemas.TemplatePredefinedUnits.second
        factor = 1000

    if "chart" in row and factor > 1:
        for r in row["chart"]:
            r["value"] /= factor


def is_saml2_available():
    return config("hastSAML2", default=False, cast=bool)


def get_domain():
    _url = config("SITE_URL")
    if not _url.startswith("http"):
        _url = "http://" + _url
    return '.'.join(urlparse(_url).netloc.split(".")[-2:])


def obfuscate(text, keep_last: int = 4):
    if text is None or not isinstance(text, str):
        return text
    if len(text) <= keep_last:
        return "*" * len(text)
    return "*" * (len(text) - keep_last) + text[-keep_last:]