import flask
from flask import request, jsonify, g
from flask_apscheduler import APScheduler
from datetime import datetime,timedelta,timezone
import sqlite3

DATABASE='deadswitch.sqlite3'


class Config(object):
    JOBS = [
        {
            'id': 'job1',
            'func': 'api1:expiryCheck',
            'trigger': 'interval',
            'seconds': 10
        }
    ]

    SCHEDULER_API_ENABLED = True


def expiryCheck():
    print('LA ')
    db=sqlite3.connect(DATABASE,detect_types=sqlite3.PARSE_DECLTYPES)
    cursor = db.cursor()
    for theRow in cursor.execute("select expiry,topic from entries where expiry < datetime()"):
        print(theRow)
    db.close()

if __name__ == '__main__':
    app = flask.Flask(__name__)
    app.config["DEBUG"] = True

    app.config.from_object(Config())
    scheduler = APScheduler()
    # it is also possible to enable the API directly
    # scheduler.api_enabled = True
    scheduler.init_app(app)
    scheduler.start()

    def get_db():
        db = getattr(g, '_database', None)
        if db is None:
            db = g._database = sqlite3.connect(DATABASE,detect_types=sqlite3.PARSE_DECLTYPES)
        return db

    @app.teardown_appcontext
    def close_connection(exception):
        db = getattr(g, '_database', None)
        if db is not None:
            db.commit()
            db.close()

    @app.route('/', methods=['GET'])
    def home():
        return "<h1>Hello</h1>"


    @app.route('/api/v1', methods=['GET'])
    def api_getByTopic():
        if 'topic' in request.args:
            topic=request.args['topic']
        else:
            return "Error: need topic"

        cursor = get_db().cursor()
        cursor.execute("select expiry from entries where topic=?",[topic])
        expdatetime=cursor.fetchone()[0]

        return "<h1>GET</h1>" + topic + ": " + expdatetime.strftime("%Y-%m-%d %H:%M:%S")

    @app.route('/api/v1', methods=['PUT','POST'])
    def api_setRecord():
        if 'topic' in request.args:
            topic = request.args['topic']
        else:
            return "Error: need topic"
        
        if 'secs' in request.args:
            secs = int(request.args['secs'])
        else:
            return "Errof: need secs"

        expiryDateTime=datetime.now(tz=timezone.utc) + timedelta(seconds=secs)
        
        cursor = get_db().cursor()
        cursor.execute("update entries set expiry=? where topic=?",[expiryDateTime,topic])
        if cursor.rowcount == 0:
            cursor.execute("Insert into entries (topic,expiry) values (?,?)",[topic,expiryDateTime])

        return "<h1>SET</h1>" + expiryDateTime.strftime("%Y-%m-%d %H:%M:%S")

    app.run(use_reloader=False)