eba-pedidos/back/web.py

#!/usr/bin/env python3
import json
import urllib
import datetime
import os

from db import db
from flask import Flask, jsonify, request, send_file

from wand.image import Image
from wand.drawing import Drawing 
from wand.color import Color

app = Flask(__name__)
PORT = 8981
BASE_PATH="/back" #changes based on webserver

d = db()
@app.route(BASE_PATH + '/cliente/<_hash>')
def client(_hash):
	out=d.client(_hash)
	if out is None:
		return "{}", 400
	out["pedidos"] = d.pedidos(int(out["id"]))
	return json.dumps(out)

@app.route(BASE_PATH + '/pedido/<_hash>/<pedidoid>')
def get_pedido(_hash, pedidoid):
	c = d.client(_hash)
	out = d.get_pedido(c["id"], pedidoid)
	if out is None:
		return "{}", 400
	return json.dumps(out)

@app.route(BASE_PATH + '/productos/<_hash>')
def products(_hash):
	c=d.client(_hash)
	if c is None:
		return "{}", 400

	out=d.products()
	return json.dumps(out)

@app.route(BASE_PATH + '/pedido', methods=["POST"])
def pedido():
	t = datetime.datetime.now()
	r = request.get_json()
	productos = r["pedido"]["productos"]
	cliente = r["pedido"]["cliente"]
	obs = r["pedido"]["observaciones"]

	if "id" in r["pedido"]:
		d.update_pedido(productos, cliente, obs, r["pedido"]["id"])
	else:
		d.create_pedido(productos, cliente, obs)

	return "{}"

@app.route(BASE_PATH + '/confirm/<_hash>/<pedidoid>', methods=["POST"])
def confirm(_hash, pedidoid):
	d.confirm(_hash, pedidoid)
	return "{}"

@app.route(BASE_PATH + '/image/<_hash>')
def image(_hash):
	filename = '/var/www/pedido/back/images/%s.png' % _hash
	if not os.path.isfile(filename) or True:
		c=d.client(_hash)
		draw = Drawing()
		with Image(width=300,height=150,background=Color('#2A3A49')) as img:
			with Image(filename="/var/www/pedido/back/images/logo.png") as logo:
				img.composite(logo, left=int(img.width/2-logo.width/2), top=int(img.height/2-logo.height/2))

			draw.fill_color = Color('white')
			draw.gravity = "north"
			draw.text(0,10, "Pedido")

			draw.gravity = "south"
			draw.text(0,10, c["nombre"] + " " + c["apellido"])

			draw(img)
			img.save(filename=filename)
	return send_file(filename, mimetype='image/png')

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