from gevent import monkey
from gevent.pywsgi import WSGIServer
from gevent import signal as geventsig
import gevent
from flask import Flask
import base64
from io import BytesIO
from matplotlib.figure import Figure
import json
from DataCenter import dataCenter
from MchDataCenter import mchDataCenter

# from plog import initLog
from flask import request, jsonify
import logging
from logging.handlers import RotatingFileHandler
import time
import signal as sig
import sys, getopt

app = Flask(__name__)
app.debug = True

curname = __name__

logging.basicConfig(filename='/var/www/html/data/log/flask.log',
                    format='%(levelname)10s  %(asctime)s  %(name)10s %(thread)d %(message)s',
                    level=logging.DEBUG)
logger = logging.getLogger('plot')

from refill import ChannelPainter,MerchantPainter
from refill import filter_chname,filter_cardtype,filter_mchids

def parse_parmeter():
    end_time = request.args.get('end_time')
    end_time = None if end_time is None else int(end_time.strip())

    start_time = request.args.get('start_time')
    start_time = None if start_time is None else int(start_time.strip())

    card_types = request.args.get('card_types')
    card_types = filter_cardtype(card_types)

    spec = request.args.get('spec')
    if spec is not None:
        spec = int(spec.strip())

    filter_wave = request.args.get('filter_wave')
    if filter_wave is not None:
        filter_wave = int(filter_wave.strip())

    return start_time,end_time,card_types,spec,filter_wave

def onError(ex):
    logger.error(ex)
    data = base64.b64encode(b'').decode("ascii")
    return f"<img src='data:image/png;base64,{data}'/>"


@app.route('/plot/ch_ratio')
def ch_ratio():
    try:
        logger.debug('start chratio')
        start_time, end_time, card_types, spec, filter_wave = parse_parmeter()
        chnames = request.args.get('chnames')
        chnames = filter_chname(chnames)

        painter = ChannelPainter(start_time=start_time, end_time=end_time, chnames=chnames, card_types=card_types, spec=spec, filter_wave=filter_wave)
        buf = painter.paint()
        data = base64.b64encode(buf.getbuffer()).decode("ascii")

        return f"<img src='data:image/png;base64,{data}'/>"
    except Exception as ex:
        return onError(ex)

@app.route('/plot/mch_ratio')
def mch_ratio():
    try:
        logger.debug('start mchratio')
        start_time, end_time, card_types, spec, filter_wave = parse_parmeter()
        mchids = request.args.get('mchids')
        mchids = filter_mchids(mchids)

        painter = MerchantPainter(start_time=start_time, end_time=end_time, mchids=mchids, card_types=card_types, spec=spec, filter_wave=filter_wave)
        buf = painter.paint_ratios()
        data = base64.b64encode(buf.getbuffer()).decode("ascii")

        return f"<img src='data:image/png;base64,{data}'/>"
    except Exception as ex:
        return onError(ex)

@app.route('/plot/mch_order_send')
def mch_order_send():
    try:
        logger.debug('start mch_order_send')
        start_time, end_time, card_types, spec, filter_wave = parse_parmeter()
        mchids = request.args.get('mchids')
        mchids = filter_mchids(mchids)

        painter = MerchantPainter(start_time=start_time, end_time=end_time, mchids=mchids, card_types=card_types, spec=spec, filter_wave=filter_wave)
        buf = painter.paint_refilling()
        data = base64.b64encode(buf.getbuffer()).decode("ascii")

        return f"<img src='data:image/png;base64,{data}'/>"
    except Exception as ex:
        return onError(ex)

@app.route('/plot/index')
def index():
    app.logger.debug('start')
    time_stamp = request.args.get('time_stamp')
    interval = request.args.get('interval')
    chname = request.args.get('chname')
    quality = request.args.get('quality')
    card_type = request.args.get('card_type')
    amount = request.args.get('amount')

    app.logger.info('time_stamp=%s interval= %s chname=%s quality=%s card_type=%s amount=%s',
                    time_stamp, interval, chname, quality, card_type, amount)

    if time_stamp is None:
        time_stamp = time.time()
    else:
        time_stamp = int(time_stamp)

    if interval is None:
        interval = 300
    else:
        interval = int(interval)

    buf = dataCenter.draw_plot(time_stamp, 
                               interval=interval,
                               chname=chname,
                               quality=quality,
                               card_type=card_type,
                               amount=amount)
    data = base64.b64encode(buf.getbuffer()).decode("ascii")
    return f"<img src='data:image/png;base64,{data}'/>"


@app.route('/plot/days')
def days():
    s_time = time.time()
    dates = dataCenter.days()
    e_time = time.time()
    print('time=', e_time - s_time)
    dates.reverse()
    dates = dates[0:30]
    return jsonify(dates)

@app.route('/plot/paths')
def paths():
    time_stamp = request.args.get('time_stamp')
    time_stamp = int(time_stamp)
    paths = dataCenter.paths(time_stamp)
    return jsonify(paths)


@app.route('/plot/mchdays')
def mchdays():
    dates = mchDataCenter.days()
    dates.reverse()
    dates = dates[0:30]
    return jsonify(dates)


@app.route('/plot/mchpaths')
def mchpaths():
    time_stamp = request.args.get('time_stamp')
    time_stamp = int(time_stamp)
    paths = mchDataCenter.paths(time_stamp)
    return jsonify(paths)


@app.route('/plot/mchplot')
def mchplot():
    time_stamp = request.args.get('time_stamp')
    interval = request.args.get('interval')
    mchid = request.args.get('mchid')
    quality = request.args.get('quality')
    card_type = request.args.get('card_type')
    amount = request.args.get('amount')

    app.logger.info('time_stamp=%s interval= %s chname=%s quality=%s card_type=%s amount=%s',
                    time_stamp, interval, mchid, quality, card_type, amount)

    if time_stamp is None:
        time_stamp = time.time()
    else:
        time_stamp = int(time_stamp)

    if interval is None:
        interval = 300
    else:
        interval = int(interval)

    buf = mchDataCenter.draw_plot(time_stamp, interval=interval, mchid=mchid, quality=quality, card_type=card_type,
                                  amount=amount)
    data = base64.b64encode(buf.getbuffer()).decode("ascii")
    return f"<img src='data:image/png;base64,{data}'/>"


if __name__ == "__main__":
    debug_mode = False
    if debug_mode:
        app.run(debug=True, host='0.0.0.0', port=5000)
    else:
        from gevent import monkey
        from gevent.pywsgi import WSGIServer
        from gevent import signal as geventsig

        monkey.patch_all()
        http_server = WSGIServer(('0.0.0.0', 5000), app)
        geventsig.signal(sig.SIGTERM, lambda: http_server.stop())
        geventsig.signal(sig.SIGINT, lambda: http_server.stop())
        http_server.serve_forever()