# coding=utf-8
import asyncio
import logging
import os
import sys
import time
from Apps.TelaiDian.Kit import take_screenshot, get_image_content_md5, clean_station_name
from Apps.TelaiDian.ReadImageKit import ReadImageKit
from Apps.TelaiDian.Service import TelaiDianService
from Apps.TelaiDian.Config.Setting import (
    SCROLL_DISTANCE_RATIO, WAIT_AFTER_SCROLL, MAX_STATIONS_COUNT,
    SAFE_EXCLUDE_RATIO, BOTTOM_SAFE_EXCLUDE_RATIO, WAIT_DETAIL_PAGE_LOAD,
    WAIT_BACK_TO_LIST
)
from Core.BaseCrawler import BaseCrawler
import uiautomator2 as u2

# 项目根目录处理
project_root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
if project_root not in sys.path:
    sys.path.append(project_root)

logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
logger = logging.getLogger("TelaiDianCrawler")

class TelaiDianCrawler(BaseCrawler):
    def __init__(self, service=None):
        super().__init__(service or TelaiDianService())
        self.read_image_kit = ReadImageKit()

    async def start(self):
        """
        实现 BaseCrawler 的启动入口
        """
        success = await self.open_app()
        if not success:
            logger.error("打开特来电小程序失败。")
            return

        d = u2.connect()
        await self.crawl_list_logic(d)

    async def open_app(self):
        """
        打开特来电小程序
        """
        from Apps.TelaiDian import Opener
        return await Opener.open_mini_program()

    async def crawl_list_logic(self, d):
        processed_count = 0
        last_md5 = None
        
        while processed_count < MAX_STATIONS_COUNT:
            # 1. 截图并分析
            screenshot_path = take_screenshot(d, f"tld_list_{int(time.time())}.jpg")
            
            # 检测是否滚动到底部
            curr_md5 = get_image_content_md5(screenshot_path, top_ratio=SAFE_EXCLUDE_RATIO, bottom_ratio=BOTTOM_SAFE_EXCLUDE_RATIO)
            if last_md5 == curr_md5:
                logger.info("内容无变化，判定已到底部")
                if os.path.exists(screenshot_path): os.remove(screenshot_path)
                break
            last_md5 = curr_md5
            
            stations = await self.read_image_kit.analyze_station_list(screenshot_path)
            if not stations:
                logger.info("本页未检测到场站，尝试滑动...")
                d.swipe_ext("up", scale=SCROLL_DISTANCE_RATIO)
                await asyncio.sleep(WAIT_AFTER_SCROLL)
                continue
            
            for station in stations:
                if processed_count >= MAX_STATIONS_COUNT:
                    break
                
                name = station.get("name")
                point = station.get("point")
                
                if not name or not point:
                    continue
                
                logger.info(f"处理场站: {name}")
                
                # 点击进入详情
                d.click(point[0], point[1])
                await asyncio.sleep(WAIT_DETAIL_PAGE_LOAD)
                
                # 爬取详情
                await self.crawl_detail_logic(d, station)
                
                # 返回列表
                d.press("back")
                await asyncio.sleep(WAIT_BACK_TO_LIST)
                processed_count += 1
            
            # 滑动到下一页
            d.swipe_ext("up", scale=SCROLL_DISTANCE_RATIO)
            await asyncio.sleep(WAIT_AFTER_SCROLL)
            
            if os.path.exists(screenshot_path): os.remove(screenshot_path)

    async def crawl_detail_logic(self, d, station_info):
        """
        在详情页提取价格和状态信息
        """
        screenshot_path = take_screenshot(d, f"tld_detail_{int(time.time())}.jpg")
        
        # 1. 提取价格
        prices = await self.read_image_kit.analyze_detail_price(screenshot_path)
        
            # 2. 保存数据
        if prices:
            station_name = clean_station_name(station_info.get("name"))
            address = station_info.get("address")
            
            logger.info(f"场站 {station_name} 提取到 {len(prices)} 条价格信息，准备保存...")
            await self.service.save_station_data(station_name, address, prices)
        
        if os.path.exists(screenshot_path): os.remove(screenshot_path)

async def main(service=None):
    crawler = TelaiDianCrawler(service=service)
    await crawler.start()

if __name__ == "__main__":
    asyncio.run(main())