from flask import Flask, request, jsonify
app = Flask(__name__)

import base64
from io import BytesIO
from matplotlib.figure import Figure
import json

import logging
import time
import signal as sig
import sys, getopt

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

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')

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)


if __name__ == "__main__":
    debug_mode = True
    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()