import requests
import json
from datetime import datetime
import pytz
import config

shanghai_tz = pytz.timezone(config.SHANGHAI_TZ_STR)

def api_login(email, password):
    payload = {"email": email, "password": password}
    try:
        response = requests.post(config.LOGIN_URL, json=payload, timeout=10)
        response.raise_for_status()
        data = response.json()
        cookies = response.cookies
        jwt_token = cookies.get("jwt_token")

        if data.get("code") == 0 and jwt_token:
            return jwt_token, None
        else:
            error_message = data.get('message', "未知登录错误")
            if data.get("code") == 0 and not jwt_token:
                error_message = "响应成功但未返回 jwt_token。"
            return None, f"{error_message} (Code: {data.get('code')})"
    except requests.exceptions.Timeout:
        return None, "登录请求超时。"
    except requests.exceptions.RequestException as e:
        return None, f"登录请求错误: {str(e)}"
    except json.JSONDecodeError:
        return None, "登录响应不是有效的 JSON。"

def get_api_profile(email, token):
    if not token:
        return None, "Token 为空，无法获取 Profile。"
    
    cookies = {"jwt_token": token}
    try:
        response = requests.get(config.PROFILE_URL, cookies=cookies, timeout=10)
        response.raise_for_status()
        profile_data = response.json()
        if profile_data.get("code") == 0 and profile_data.get("data"):
            return profile_data.get("data"), None
        else:
            error_message = profile_data.get('message', "未知 Profile 错误")
            if profile_data.get("code") == 0 and not profile_data.get("data"):
                error_message = "响应成功但未返回 Profile 数据。"
            return None, f"{error_message} (Code: {profile_data.get('code')})"
    except requests.exceptions.Timeout:
        return None, "获取 Profile 请求超时。"
    except requests.exceptions.RequestException as e:
        return None, f"获取 Profile 请求错误: {str(e)}"
    except json.JSONDecodeError:
        return None, "Profile 响应不是有效的 JSON。"

def get_api_card_info(email, token):
    if not token:
        return None, "Token 为空，无法获取卡片信息。"
    
    cookies = {"jwt_token": token}
    print(f"[{datetime.now(shanghai_tz)}] 尝试为账户 {email} 获取卡片信息...")
    try:
        response = requests.get(config.CARD_INFO_URL, cookies=cookies, timeout=10)
        response.raise_for_status()
        card_data = response.json()
        if card_data.get("code") == 0 and "items" in card_data.get("data", {}):
            items = card_data["data"]["items"]
            if items:
                item = items[0]
                provider_bin = None
                if item.get("provider"):
                    parts = item["provider"].split('_')
                    if len(parts) > 1 and parts[-1].isdigit():
                        provider_bin = parts[-1]
                
                processed_card_info = {
                    "provider_bin": provider_bin,
                    "card_last_four_digits": item.get("card_last_four_digits"),
                    "consumption_limit": item.get("consumption_limit"),
                    "status": item.get("status"),
                    "name": item.get("name"),
                    "available_balance": item.get("available_balance")
                }
                return processed_card_info, None
            else:
                return None, None
        elif card_data.get("code") == 0 and not card_data.get("data", {}).get("items"):
             return None, None
        else:
            error_message = card_data.get('message', "未知卡片信息错误")
            if card_data.get("code") == 0 and not card_data.get("data"):
                error_message = "响应成功但未返回卡片数据。"
            return None, f"{error_message} (Code: {card_data.get('code')})"
    except requests.exceptions.Timeout:
        return None, "获取卡片信息请求超时。"
    except requests.exceptions.RequestException as e:
        return None, f"获取卡片信息请求错误: {str(e)}"
    except json.JSONDecodeError:
        return None, "卡片信息响应不是有效的 JSON。"

def get_statement_records(token, page=1, size=10):
    if not token:
        return None, "Token 为空，无法获取账单记录。"
    
    cookies = {"jwt_token": token}
    payload = {"page": page, "size": size}
    statement_url = f"{config.BASE_API_URL}/user/statement/record"

    try:
        response = requests.post(statement_url, json=payload, cookies=cookies, timeout=20)
        response.raise_for_status()
        data = response.json()

        if data.get("code") == 0:
            return data, None
        else:
            error_message = data.get('message', "获取账单记录时发生未知错误")
            return None, f"{error_message} (Code: {data.get('code')})"
    except requests.exceptions.Timeout:
        return None, "获取账单记录请求超时。"
    except requests.exceptions.RequestException as e:
        return None, f"获取账单记录请求错误: {str(e)}"
    except json.JSONDecodeError:
        return None, "账单记录响应不是有效的 JSON。"