# coding=utf-8
import os
from flask import Flask
from flask import request
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from time import sleep

import html2img_ping
import img_pdf_png

# 配置
server_port = 7109
# chrome_drive_path = "E:/chromedriver-win64/chromedriver.exe"  # 谷歌浏览器驱动目录
chrome_drive_path = "/usr/local/bin/chromedriver"  # 谷歌浏览器驱动目录
image_folder = './imgs'  # 转换过程中生成的图片目录, 最终会合并为一个长图
output_file = './screenshot'  # 最后的输出目录

# hug接口输出为json格式
app = Flask(__name__)


@app.route('/api/report/server')
def report_server():
    return 1


@app.route('/api/report/html2img', methods=['POST'])
def report_detail2img():
    req_data = request.get_json()
    if req_data is None:
        return {"code": 403, "data": "", "error": "参数有误"}

    report_url = req_data['report_url']
    file_name = req_data['file_name']
    output_type = req_data['output_type']

    # report_url参数, 报告的分享地址
    if report_url is None or report_url == "":
        return {"code": 403, "data": "", "error": "report_url parameter is missing"}
    print("report_url: ", report_url)

    # file_name参数, 生成的文件名
    if file_name is None or file_name == "":
        return {"code": 403, "data": "", "error": "file_name parameter is missing"}
    print("file_name: ", file_name)

    # output_type参数, 非必填, img或pdf, 为空则都生成

    try:
        # 生成图片
        create_img_and_pdf(report_url, file_name, output_type)

        # 清空imgs临时图片文件夹
        for fn in os.listdir(image_folder):
            fp = os.path.join(image_folder, fn)
            if os.path.isfile(fp):
                os.remove(fp)

        # 获取根目录
        current_file_path = os.path.abspath(__file__)
        project_root = os.path.dirname(current_file_path)

        # 生成的文件目录
        img_path = project_root + "/screenshot/" + file_name + ".png"
        pdf_path = project_root + "/screenshot/" + file_name + ".pdf"
        print(img_path)
        print(pdf_path)
        return {"code": 200, "data": [img_path, pdf_path], "error": ""}
    except Exception as e:
        err_msg = str(e)
        print(err_msg)
        return {"code": 403, "data": "", "error": err_msg}


@app.route('/api/report/clear_local_file', methods=['POST'])
def clear_local_file():
    req_data = request.get_json()
    if req_data is None:
        return {"code": 403, "data": "", "error": "参数有误"}

    file_name = req_data['file_name']
    if file_name is None or file_name == "":
        return {"code": 403, "data": "", "error": "file_name parameter is missing"}

    file_path = output_file + "/" + file_name
    if os.path.exists(file_path) is True:
        os.remove(file_path)
    print("clear success: ", file_path)
    return {"code": 200, "data": "", "error": ""}


def create_img_and_pdf(report_url, file_name, output_type=""):
    # 加载驱动
    options = webdriver.ChromeOptions()  # 创建一个谷歌WebDriver实例
    options.add_argument("no-sandbox")
    options.add_argument("disable-dev-shm-usage")
    options.add_argument("disable-extensions")
    options.add_argument("headless")  # 无头浏览器模式
    s = Service(executable_path=chrome_drive_path)
    driver = webdriver.Chrome(options=options)

    # 加载页面
    print("加载页面")
    driver.get(report_url)
    sleep(5)
    print("加载完成")

    # html页面转换为图片
    html2img_ping.html2img(driver, image_folder)

    # 合并图片为长图/PDF
    img_pdf_png.merge_images(image_folder, output_file, file_name, output_type)
    driver.quit()

    # 退出驱动
    driver.quit()
    return


if __name__ == "__main__":
    app.run(host='0.0.0.0', port=server_port, debug=True)