# -*- coding: utf-8 -*-
import os
import json
import random
import time
import sqlite3
import httpx
from httpx import BasicAuth


class CategoryDownloader:
    def __init__(self):
        self.base_api_url = 'https://api.worldquantbrain.com'
        self.db_path = os.path.join(os.getcwd(), 'data_sets.db')
        self.client = self.login()

    def create_database_if_not_exists(self):
        """创建数据库和表（如果不存在）"""
        conn = sqlite3.connect(self.db_path)
        cursor = conn.cursor()

        # 创建category表
        cursor.execute('''
                       CREATE TABLE IF NOT EXISTS category
                       (
                           name
                           TEXT,
                           base_url
                           TEXT,
                           category_id
                           TEXT,
                           region
                           TEXT,
                           universe
                           TEXT,
                           instrumentType
                           TEXT,
                           delay
                           TEXT,
                           downloaded
                           INTEGER
                       )
                       ''')

        # 创建data_sets表
        cursor.execute('''
                       CREATE TABLE IF NOT EXISTS data_sets
                       (
                           name
                           TEXT,
                           description
                           TEXT,
                           dataset_id
                           TEXT,
                           dataset_name
                           TEXT,
                           category_id
                           TEXT,
                           category_name
                           TEXT,
                           region
                           TEXT,
                           delay
                           TEXT,
                           universe
                           TEXT,
                           type
                           TEXT
                       )
                       ''')

        conn.commit()
        conn.close()

    def login(self):
        """登录并返回客户端实例"""
        username, password = "jack0210_@hotmail.com", "!QAZ2wsx+0913"
        client = httpx.Client(auth=BasicAuth(username, password))

        try:
            response = client.post(f'{self.base_api_url}/authentication')
            print(f"登录状态: {response.status_code}")

            if response.status_code in [200, 201]:
                print("登录成功!")
                return client
            else:
                print(f"登录失败: {response.json()}")
                return None
        except Exception as e:
            print(f"登录过程中出现错误: {e}")
            return None

    def save_to_database(self, category, category_id, region, universe, instrumentType, delay):
        """保存数据到SQLite数据库"""
        conn = sqlite3.connect(self.db_path)
        cursor = conn.cursor()

        # 检查是否已存在相同记录
        cursor.execute('''
                       SELECT COUNT(*)
                       FROM category
                       WHERE name = ?
                         AND category_id = ?
                         AND region = ?
                         AND universe = ?
                       ''', (category, category_id, region, universe))

        if cursor.fetchone()[0] == 0:
            cursor.execute('''
                           INSERT INTO category (name, base_url, category_id, region, universe, instrumentType, delay, downloaded)
                           VALUES (?, ?, ?, ?, ?, ?, ?, ?)
                           ''', (category, 'https://api.worldquantbrain.com/data-fields',
                                 category_id, region, universe, instrumentType, delay, 0))
            print(f"已保存: {category} - {category_id} - {region} - {universe}")
        else:
            print(f"记录已存在: {category} - {category_id} - {region} - {universe}")

        conn.commit()
        conn.close()

    def fetch_category_data(self, category, delay, instrumentType, region_list, universe_list):
        """获取分类数据并保存到数据库"""
        # 确保数据库已创建
        self.create_database_if_not_exists()

        if not self.client:
            print("客户端未初始化，无法获取数据")
            return []

        for region in region_list:
            for universe in universe_list:
                url = f'https://api.worldquantbrain.com/data-sets?category={category}&delay={delay}&instrumentType={instrumentType}&limit=50&offset=0&region={region}&universe={universe}'
                print(f"请求URL: {url}")

                try:
                    response = self.client.get(url)

                    if response.status_code == 200:
                        data = response.json()

                        if data.get('count', 0) > 0:
                            for item in data.get('results', []):
                                category_id = item.get('id', '')
                                region = item.get('region', '')
                                universe = item.get('universe', '')

                                # 保存到数据库
                                self.save_to_database(category, category_id, region, universe, instrumentType, delay)
                        else:
                            print(f"未找到数据: {category} - {region} - {universe}")
                    else:
                        print(f"请求失败: {response.status_code}")

                except Exception as e:
                    print(f"请求过程中出现错误: {e}")

                sleep_time = random.uniform(10, 15)
                print(f"等待 {sleep_time} 秒后继续请求")
                time.sleep(sleep_time)

        print(f"数据获取完成，已保存到数据库: {self.db_path}")

    def check_database_records(self):
        """检查数据库中的记录"""
        conn = sqlite3.connect(self.db_path)
        cursor = conn.cursor()

        cursor.execute("SELECT COUNT(*) FROM category")
        count = cursor.fetchone()[0]
        print(f"category表中总记录数: {count}")

        conn.close()


if __name__ == "__main__":
    downloader = CategoryDownloader()

    if downloader.client:
        category_list = [
            'analyst',
            'broker',
            'earnings',
            'fundamental',
            'imbalance',
            'insiders',
            'institutions',
            'macro',
            'model',
            'news',
            'option',
            'other',
            'pv',
            'risk',
            'sentiment',
            'shortinterest',
            'socialmedia'
            ]

        delay = '1'
        instrumentType = 'EQUITY'

        region_list = [
            'USA',
            'GLB',
            'EUR',
            'ASI',
            'CHN',
            'KOR',
            'TWN',
            'IND'
        ]
        universe_list = [
            'TOP3000',
            'TOP1000',
            'TOP500',
            'TOP200',
            'TOPSP500',
            'ILLIQUID_MINVOL1M',
            'MINVOL1M'
        ]

        for category in category_list:
            downloader.fetch_category_data(category, delay, instrumentType, region_list, universe_list)
            downloader.check_database_records()
            sleep_time = 30
            print(f'{category} 数据已下载, 程序休眠 {sleep_time} 秒')
            time.sleep(sleep_time)