def buy_solution(problem_name, seller_name):
current_problem = None
error = None
for name, problem in parsed_problem_file:
if name == problem_name:
current_problem = lg.Problem.fromString(problem)
break
if not current_problem:
return render_template(
"error_page.html", logged_in_user=current_user, error="You entered a URL for a non-existent problem."
)
username = current_user.name
user_stats = generate_user_stats(username, user_pool)
categorized_problems = categorize_problems(user_stats, parsed_problem_file)
if not problem_name in (name for name, _ in categorized_problems["to_solve"]):
return render_template(
"error_page.html",
logged_in_user=current_user,
error="You have either solved the problem or you are not allowed to access it yet.",
)
all_commodities = rc.list_all_commodities(User.user_database, user_pool)
found = False
for prob, user, price_requested in all_commodities:
if prob == problem_name and user == seller_name:
found = True
break
if not found:
error = "The seller is not selling the solution to this problem."
return render_template("error_page.html", logged_in_user=current_user, error=error)
if get_user_points(username, user_pool) < price_requested:
error = "You don't have enough points to buy the solution to this problem."
return render_template("error_page.html", logged_in_user=current_user, error=error)
rc.pay_user(seller_name, price_requested, user_pool)
rc.charge_user(current_user.name, price_requested, user_pool)
result, points = rc.submit_solution(current_problem.answer, current_problem.name, problem_pool)
if not result:
error = "Something really bad happened."
return render_template("error_page.html", logged_in_user=current_user, error=error)
else:
rc.update_user_solution(points, current_problem.name, current_user.name, user_pool)
rc.add_to_purchases(current_user.name, current_problem.name, user_pool)
log_purchase(current_user.name, seller_name, current_problem.name, price_requested, points)
message = "You bought the solution of {0} from {1} at the price of {2} points. Check the stats page for the solution".format(
current_problem.display_name.lower(), get_display_name(seller_name), price_requested
)
return render_template("success_page.html", logged_in_user=current_user, message=message)
def generate_user_stats(username, user_pool):
user_info = rc.get_user_from_redis(username, user_pool)
user_stats = {}
user_stats['display_name'] = User.user_database[username][1]
user_stats['current_points'] = lg.UserLogic.scoreFromTuple(user_info)
user_stats['starting_points'] = user_info[1]
user_stats['points_for_solving'] = user_info[2]
user_stats['points_for_selling'] = user_info[3]
user_stats['expenditure'] = user_info[4]
user_stats['problems_solved'] = user_info[5]
user_stats['solutions_bought'] = user_info[6]
user_stats['solutions_sold'] = user_info[7]
return user_stats
def show_scores():
users = [(user, User.user_database[user][1]) for user in User.user_database]
users_info = []
for user, display_name in users:
try:
user_info = rc.get_user_from_redis(user, user_pool)
users_info.append((user, display_name, lg.UserLogic.scoreFromTuple(user_info), len(user_info[5])))
except TypeError:
pass
users_info.sort(key=lambda x: x[2], reverse=True)
positions = enumerate(users_info)
if current_user.is_anonymous:
return render_template("scores.html", scores=positions)
else:
return render_template("scores.html", scores=positions, logged_in_user=current_user)
def list_solutions_for_sale(problem_name):
current_problem = None
error = None
for name, problem in parsed_problem_file:
if name == problem_name:
current_problem = lg.Problem.fromString(problem)
break
if not current_problem:
return render_template(
"error_page.html", logged_in_user=current_user, error="You entered a URL for a non-existent problem."
)
username = current_user.name
user_stats = generate_user_stats(username, user_pool)
categorized_problems = categorize_problems(user_stats, parsed_problem_file)
if not problem_name in (name for name, _ in categorized_problems["to_solve"]):
return render_template(
"error_page.html",
logged_in_user=current_user,
error="You have either already solved the problem, or you are not allowed to solve it.",
)
all_commodities = rc.list_all_commodities(User.user_database, user_pool)
problem_commodities = [
(prob, user, get_display_name(user), price)
for (prob, user, price) in all_commodities
if prob == current_problem.name
]
return render_template(
"list_problems.html",
logged_in_user=current_user,
current_problem=current_problem,
commodities=problem_commodities,
)
def get_user_points(username, user_pool):
user_info = rc.get_user_from_redis(username, user_pool)
return lg.UserLogic.scoreFromTuple(user_info)
def change_solution_price(problem_name):
current_problem = None
error = None
for name, problem in parsed_problem_file:
if name == problem_name:
current_problem = lg.Problem.fromString(problem)
break
if not current_problem:
error = "You entered a URL for a non-existent problem."
return render_template("error_page.html", logged_in_user=current_user, error=error)
username = current_user.name
user_stats = generate_user_stats(username, user_pool)
categorized_problems = categorize_problems(user_stats, parsed_problem_file)
if not problem_name in (name for name, _ in categorized_problems["on_market"]):
error = "You have not put this problem up on the market yet."
return render_template("error_page.html", logged_in_user=current_user, error=error)
if get_user_points(username, user_pool) < lg.MARKET_FEE_CHANGE_PRICE:
error = "You don't have enough points to change the price of the solution."
return render_template("error_page.html", logged_in_user=current_user, error=error)
form = PriceForm(request.form)
if request.method == "POST":
price_requested_str = request.form["price"]
try:
price_requested = int(price_requested_str)
if price_requested < 0:
error = "The price must be a non-negative integer."
return render_template(
"change_price.html",
form=form,
error=error,
logged_in_user=current_user,
current_problem=current_problem,
market_fee=lg.MARKET_FEE_CHANGE_PRICE,
)
result = rc.change_solution_price(
current_user.name, current_problem.name, price_requested, user_pool, User.user_database
)
log_changed_price(current_user.name, current_problem.name, price_requested, lg.MARKET_FEE_CHANGE_PRICE)
if result:
return render_template(
"success_page.html",
logged_in_user=current_user,
message="You successfully changed the price of the solution of {0} to {1} points.".format(
current_problem.display_name.lower(), price_requested
),
)
else:
return render_template(
"error_page.html", logged_in_user=current_user, error="Something wrong happened. Try again."
)
except ValueError:
error = "The price must be a non-negative integer."
return render_template(
"change_price.html",
form=form,
error=error,
logged_in_user=current_user,
current_problem=current_problem,
market_fee=lg.MARKET_FEE_CHANGE_PRICE,
)
return render_template(
"change_price.html",
form=form,
error=error,
logged_in_user=current_user,
current_problem=current_problem,
market_fee=lg.MARKET_FEE_CHANGE_PRICE,
)
def put_solution_on_market(problem_name):
current_problem = None
error = None
for name, problem in parsed_problem_file:
if name == problem_name:
current_problem = lg.Problem.fromString(problem)
break
if not current_problem:
error = "You entered a URL for a non-existent problem."
return render_template("error_page.html", logged_in_user=current_user, error=error)
username = current_user.name
user_stats = generate_user_stats(username, user_pool)
categorized_problems = categorize_problems(user_stats, parsed_problem_file)
if not problem_name in (name for name, _ in categorized_problems["to_sell"]):
error = "You have either already put up the solution for sale, or you have not solved the problem yet."
return render_template("error_page.html", logged_in_user=current_user, error=error)
if get_user_points(username, user_pool) < lg.MARKET_FEE_NEW_ITEM:
error = "You don't have enough points to put up the solution on market."
return render_template("error_page.html", logged_in_user=current_user, error=error)
form = PriceForm(request.form)
if request.method == "POST":
price_requested_str = request.form["price"]
try:
price_requested = int(price_requested_str)
if price_requested < 0:
error = "The price must be a non-negative integer."
return render_template(
"sale_page.html",
form=form,
error=error,
logged_in_user=current_user,
current_problem=current_problem,
market_fee=lg.MARKET_FEE_NEW_ITEM,
)
rc.sell_solution(current_user.name, current_problem.name, price_requested, user_pool)
log_on_market(current_user.name, current_problem.name, price_requested, lg.MARKET_FEE_NEW_ITEM)
return render_template(
"success_page.html",
logged_in_user=current_user,
message="You successfully put up the solution of {0} for the price of {1} points.".format(
current_problem.display_name.lower(), price_requested
),
)
except ValueError:
error = "The price must be a non-negative integer."
return render_template(
"sale_page.html",
form=form,
error=error,
logged_in_user=current_user,
current_problem=current_problem,
market_fee=lg.MARKET_FEE_NEW_ITEM,
)
return render_template(
"sale_page.html",
form=form,
error=error,
logged_in_user=current_user,
current_problem=current_problem,
market_fee=lg.MARKET_FEE_NEW_ITEM,
)
def post_solution(prob_name):
current_problem = None
error = None
for name, problem in parsed_problem_file:
if name == prob_name:
current_problem = lg.Problem.fromString(problem)
break
if not current_problem:
return render_template(
"error_page.html", logged_in_user=current_user, error="You entered a URL for a non-existent problem."
)
username = current_user.name
user_stats = generate_user_stats(username, user_pool)
categorized_problems = categorize_problems(user_stats, parsed_problem_file)
if not prob_name in (name for name, _ in categorized_problems["to_solve"]):
return render_template(
"error_page.html",
logged_in_user=current_user,
error="You have either solved the problem or you are not allowed to solve it.",
)
form = AnswerForm(request.form)
if request.method == "POST":
submitted_answer = request.form["answer"]
if submitted_answer != current_problem.answer:
if not submitted_answer:
error = "Enter an answer"
else:
error = "Wrong answer. Try again."
return render_template(
"submit_answer.html",
form=form,
error=error,
logged_in_user=current_user,
current_problem=current_problem,
)
else:
result, points = rc.submit_solution(submitted_answer, current_problem.name, problem_pool)
if result:
status = rc.update_user_solution(points, current_problem.name, current_user.name, user_pool)
if not status:
return render_template(
"error_page.html",
logged_in_user=current_user,
error="Something went wrong. Try submitting your answer again.",
)
else:
log_submission(current_user.name, current_problem.name, points)
return render_template(
"success_page.html",
logged_in_user=current_user,
message="Your answer was correct. You gained {0} points.".format(points),
)
return render_template(
"submit_answer.html", form=form, error=error, logged_in_user=current_user, current_problem=current_problem
)