hello.py

from flask import Flask, Response
from flask import request, render_template, make_response
import maze_display as md
from mazelib import *

app = Flask(__name__)


@app.route("/")
def hello():
    width = request.args.get("width", default=20, type=int)
    height = request.args.get("height", default=26, type=int)
    difficulty = request.args.get("difficulty", default=1.0, type=float)

    m = Maze()
    m.generator = BacktrackingGenerator(height, width)
    m.solver = WallFollower()
    m.generate_monte_carlo(10, 10, difficulty)

    maze_html, maze_css = md.toHTML(m.grid, m.start, m.end)
    return render_template("index.html", maze_repr=maze_html, html_css=maze_css)


@app.route("/image")
def image_maze():
    width = request.args.get("width", default=20, type=int)
    height = request.args.get("height", default=26, type=int)
    difficulty = request.args.get("difficulty", default=1.0, type=float)

    m = Maze()
    m.generator = BacktrackingGenerator(height, width)
    m.solver = WallFollower()
    #m.generate_monte_carlo(10, 10, difficulty)
    m.generate()
    m.generate_entrances()

    imagebytes = md.render_image(m.grid, m.start, m.end)

    resp = Response(response=imagebytes, status=200, mimetype="image/png")
    return resp


@app.route("/pdf")
def pdf_maze():

    from fpdf import FPDF

    width = request.args.get("width", default=12, type=int)
    height = request.args.get("height", default=12, type=int)
    m = Maze()
    m.generator = BacktrackingGenerator(height, width)

    pdf = FPDF()
    pdf.add_page()
    pdf.set_font("Arial", "B", 16)
    pdf.cell(40, 10, str(m))
    pdf.output("tuto1.pdf", "F")
    with open("tuto1.pdf", "rb") as f:
        response = make_response(f.read())
        response.headers["Content-Type"] = "application/pdf"
        response.headers["Content-Disposition"] = (
            "inline; filename=%s.pdf" % "yourfilename"
        )
        return response