import asyncio
import datetime
from dataclasses import dataclass
from typing import Optional

import logging
import aiohttp
from aiohttp import ClientTimeout
import os

from exceptions import DatabaseError, APITimeoutError

AUTH_TOKEN = {"Authorization": f"Bearer {os.environ.get('API_TOKEN')}"}
ENV_DATABASE = os.getenv("DATABASE", "dev").lower()
DB_URL = (
    "https://pd.manticorum.com/api"
    if "prod" in ENV_DATABASE
    else "https://pddev.manticorum.com/api"
)
master_debug = True
PLAYER_CACHE = {}
logger = logging.getLogger("discord_app")


def param_char(other_params):
    if other_params:
        return "&"
    else:
        return "?"


def get_req_url(
    endpoint: str,
    api_ver: int = 2,
    object_id: Optional[int] = None,
    params: Optional[list] = None,
):
    req_url = f"{DB_URL}/v{api_ver}/{endpoint}{'/' if object_id is not None else ''}{object_id if object_id is not None else ''}"

    if params:
        other_params = False
        for x in params:
            req_url += f"{param_char(other_params)}{x[0]}={x[1]}"
            other_params = True

    return req_url


def log_return_value(log_string: str):
    start = 0
    end = 3000
    while end < 300000:
        line = log_string[start:end]
        if len(line) == 0:
            return
        logger.info(f"{'\n\nreturn: ' if start == 0 else ''}{log_string[start:end]}")
        start += 3000
        end += 3000
    logger.warning("[ S N I P P E D ]")
    # if master_debug:
    #     logger.info(f'return: {log_string[:1200]}{"  [ S N I P P E D ]" if len(log_string) > 1200 else ""}\n')
    # else:
    #     logger.debug(f'return: {log_string[:1200]}{"  [ S N I P P E D ]" if len(log_string) > 1200 else ""}\n')


async def db_get(
    endpoint: str,
    api_ver: int = 2,
    object_id: Optional[int] = None,
    params: Optional[list] = None,
    none_okay: bool = True,
    timeout: int = 5,
    retries: int = 3,
):
    """
    GET request to the API with timeout and retry logic.

    Args:
        endpoint: API endpoint path
        api_ver: API version (default 2)
        object_id: Optional object ID to append to URL
        params: Optional list of (key, value) tuples for query params
        none_okay: If True, return None on non-200 response; if False, raise DatabaseError
        timeout: Request timeout in seconds (default 5)
        retries: Number of retry attempts on timeout (default 3)

    Returns:
        JSON response or None if none_okay and request failed

    Raises:
        APITimeoutError: If all retry attempts fail due to timeout
        DatabaseError: If response is non-200 and none_okay is False
    """
    req_url = get_req_url(endpoint, api_ver=api_ver, object_id=object_id, params=params)
    log_string = f"db_get - get: {endpoint} id: {object_id} params: {params}"
    logger.info(log_string) if master_debug else logger.debug(log_string)

    for attempt in range(retries):
        try:
            client_timeout = ClientTimeout(total=timeout)
            async with aiohttp.ClientSession(
                headers=AUTH_TOKEN, timeout=client_timeout
            ) as session:
                async with session.get(req_url) as r:
                    if r.status == 200:
                        js = await r.json()
                        log_return_value(f"{js}")
                        return js
                    elif none_okay:
                        e = await r.text()
                        logger.error(e)
                        return None
                    else:
                        e = await r.text()
                        logger.error(e)
                        raise DatabaseError(e)
        except asyncio.TimeoutError:
            if attempt < retries - 1:
                wait_time = 2**attempt  # 1s, 2s, 4s
                logger.warning(
                    f"Timeout on GET {endpoint}, retry {attempt + 1}/{retries} in {wait_time}s"
                )
                await asyncio.sleep(wait_time)
            else:
                logger.error(
                    f"Connection timeout to host {req_url} after {retries} attempts"
                )
                raise APITimeoutError(f"Connection timeout to host {req_url}")


async def db_patch(
    endpoint: str, object_id: int, params: list, api_ver: int = 2, timeout: int = 5
):
    """
    PATCH request to the API with timeout (no retry - not safe for mutations).

    Args:
        endpoint: API endpoint path
        object_id: Object ID to patch
        params: List of (key, value) tuples for query params
        api_ver: API version (default 2)
        timeout: Request timeout in seconds (default 5)

    Raises:
        APITimeoutError: If request times out
        DatabaseError: If response is non-200
    """
    req_url = get_req_url(endpoint, api_ver=api_ver, object_id=object_id, params=params)
    log_string = f"db_patch - patch: {endpoint} {params}"
    logger.info(log_string) if master_debug else logger.debug(log_string)

    try:
        client_timeout = ClientTimeout(total=timeout)
        async with aiohttp.ClientSession(
            headers=AUTH_TOKEN, timeout=client_timeout
        ) as session:
            async with session.patch(req_url) as r:
                if r.status == 200:
                    js = await r.json()
                    log_return_value(f"{js}")
                    return js
                else:
                    e = await r.text()
                    logger.error(e)
                    raise DatabaseError(e)
    except asyncio.TimeoutError:
        logger.error(f"Connection timeout to host {req_url}")
        raise APITimeoutError(f"Connection timeout to host {req_url}")


async def db_post(
    endpoint: str, api_ver: int = 2, payload: Optional[dict] = None, timeout: int = 5
):
    """
    POST request to the API with timeout (no retry - not safe for mutations).

    Args:
        endpoint: API endpoint path
        api_ver: API version (default 2)
        payload: Optional JSON payload
        timeout: Request timeout in seconds (default 5)

    Raises:
        APITimeoutError: If request times out
        DatabaseError: If response is non-200
    """
    req_url = get_req_url(endpoint, api_ver=api_ver)
    log_string = f"db_post - post: {endpoint} payload: {payload}\ntype: {type(payload)}"
    logger.info(log_string) if master_debug else logger.debug(log_string)

    try:
        client_timeout = ClientTimeout(total=timeout)
        async with aiohttp.ClientSession(
            headers=AUTH_TOKEN, timeout=client_timeout
        ) as session:
            async with session.post(req_url, json=payload) as r:
                if r.status == 200:
                    js = await r.json()
                    log_return_value(f"{js}")
                    return js
                else:
                    e = await r.text()
                    logger.error(e)
                    raise DatabaseError(e)
    except asyncio.TimeoutError:
        logger.error(f"Connection timeout to host {req_url}")
        raise APITimeoutError(f"Connection timeout to host {req_url}")


async def db_put(
    endpoint: str, api_ver: int = 2, payload: Optional[dict] = None, timeout: int = 5
):
    """
    PUT request to the API with timeout (no retry - not safe for mutations).

    Args:
        endpoint: API endpoint path
        api_ver: API version (default 2)
        payload: Optional JSON payload
        timeout: Request timeout in seconds (default 5)

    Raises:
        APITimeoutError: If request times out
        DatabaseError: If response is non-200
    """
    req_url = get_req_url(endpoint, api_ver=api_ver)
    log_string = f"db_put - put: {endpoint} payload: {payload}\ntype: {type(payload)}"
    logger.info(log_string) if master_debug else logger.debug(log_string)

    try:
        client_timeout = ClientTimeout(total=timeout)
        async with aiohttp.ClientSession(
            headers=AUTH_TOKEN, timeout=client_timeout
        ) as session:
            async with session.put(req_url, json=payload) as r:
                if r.status == 200:
                    js = await r.json()
                    log_return_value(f"{js}")
                    return js
                else:
                    e = await r.text()
                    logger.error(e)
                    raise DatabaseError(e)
    except asyncio.TimeoutError:
        logger.error(f"Connection timeout to host {req_url}")
        raise APITimeoutError(f"Connection timeout to host {req_url}")


async def db_delete(endpoint: str, object_id: int, api_ver: int = 2, timeout: int = 5):
    """
    DELETE request to the API with timeout (no retry - not safe for mutations).

    Args:
        endpoint: API endpoint path
        object_id: Object ID to delete
        api_ver: API version (default 2)
        timeout: Request timeout in seconds (default 5)

    Raises:
        APITimeoutError: If request times out
        DatabaseError: If response is non-200
    """
    req_url = get_req_url(endpoint, api_ver=api_ver, object_id=object_id)
    log_string = f"db_delete - delete: {endpoint} {object_id}"
    logger.info(log_string) if master_debug else logger.debug(log_string)

    try:
        client_timeout = ClientTimeout(total=timeout)
        async with aiohttp.ClientSession(
            headers=AUTH_TOKEN, timeout=client_timeout
        ) as session:
            async with session.delete(req_url) as r:
                if r.status == 200:
                    js = await r.json()
                    log_return_value(f"{js}")
                    return js
                else:
                    e = await r.text()
                    logger.error(e)
                    raise DatabaseError(e)
    except asyncio.TimeoutError:
        logger.error(f"Connection timeout to host {req_url}")
        raise APITimeoutError(f"Connection timeout to host {req_url}")


async def get_team_by_abbrev(abbrev: str):
    all_teams = await db_get("teams", params=[("abbrev", abbrev)])

    if not all_teams or not all_teams["count"]:
        return None

    return all_teams["teams"][0]


async def post_to_dex(player, team):
    return await db_post(
        "paperdex", payload={"team_id": team["id"], "player_id": player["id"]}
    )


def team_hash(team):
    hash_string = f"{team['sname'][-1]}{team['gmid'] / 6950123:.0f}{team['sname'][-2]}{team['gmid'] / 42069123:.0f}"
    return hash_string