from flask import Flask, request, jsonify
import requests, re, json, os, yaml
from db import *
from aliexpress import *

app = Flask(__name__)

def get_conf():
    '''return settings in settings.yaml file'''
    settings = dict()
    with open(os.path.dirname(os.path.realpath(__file__))+"/settings.yaml", 'r') as conf_file:
        settings = yaml.safe_load(conf_file)
    settings["db"] = {
            "host": os.environ.get('POSTGRES_HOST'),
            "port": os.environ.get('POSTGRES_PORT'),
            "database": os.environ.get('POSTGRES_DB'),
            "user": os.environ.get('POSTGRES_USER'),
            "password": os.environ.get('POSTGRES_PASSWORD')
            }

    return settings

@app.route('/init')
def init_db():
    print("init")
    settings = get_conf()
    initialize(settings["db"])
    return 'Hello, World!'

@app.route('/update')
def update_hist():
    print("update")
    settings = get_conf()
    fill_db(settings["db"], check_items(settings["item"]))
    return 'Hello, World!'

@app.route('/add',methods = ['POST'])
def add_item():
    print("adding item")
    itemid = request.form['itemid']
    attributes = request.form['attributes'].split(',')
    new_item = [(itemid, attributes)]
    extr = check_items(new_item)
    return str(extr['skuid'])

@app.route('/datahistory',methods = ['POST', 'GET'])
def data_history_request():
    if request.method == 'GET':
        print("fetching data history")
        settings = get_conf()
        return jsonify(get_history(settings["db"]))

@app.route('/dataitem',methods = ['POST', 'GET'])
def data_item_request():
    if request.method == 'GET':
        print("fetching data item")
        settings = get_conf()
        return jsonify(get_item(settings["db"]))

if __name__ == '__main__':
   app.run(debug = True)