The-Hunt/app/main/routes.py

import json
from datetime import datetime, timedelta
from flask import render_template, redirect, url_for, request, abort, send_file, current_app
from flask_login import current_user, login_required
from werkzeug.security import safe_join
from app import db
from app.main import bp
from app.utils import get_game_if_owner, get_caught_bunny_photo_directory, get_bunny_photo_filename
from app.models import User, Game, Role, GamePlayer, ObjectiveMinimalEncoder, LocationEncoder, \
                       PlayerCaughtPlayer, Review, Location

@bp.before_app_request
def before_request():
    if current_user.is_authenticated:
        current_user.last_login = datetime.utcnow()
        db.session.commit()

@bp.route('/')
@bp.route('/index')
@login_required
def index():
    if len(current_user.games) == 1:
        return redirect(url_for('main.game_dashboard', game_name=current_user.games[0].name))
    return render_template("index.html", title='Home')

@bp.route('/game/<game_name>/dashboard')
@login_required
def game_dashboard(game_name):
    game = Game.query.filter_by(name=game_name).first_or_404()
    role = current_user.role_in_game(game)
    if role == Role.owner:
        return render_template('game_owner_dashboard.html', title='Game Dashboard', game=game,
                               json=json, objective_encoder=ObjectiveMinimalEncoder,
                               location_encoder=LocationEncoder)
    if role == Role.bunny:
        return render_template('game_bunny_dashboard.html', title='Game Dashboard', game=game,
                               json=json, location_encoder=LocationEncoder)
    if role == Role.hunter:
        hunter_delay = current_app.config['HUNTER_LOCATION_DELAY']
        return render_template('game_hunter_dashboard.html', title='Game Dashboard', game=game,
                               hunter_delay=hunter_delay, json=json,
                               location_encoder=LocationEncoder)
    if role == Role.none:
        return render_template('game_hunter_dashboard.html', title='Game Dashboard', game=game,
                               json=json, location_encoder=LocationEncoder)
    if role is None:
        abort(403)

@bp.route('/game/<game_name>/caught_bunny_photo', methods=['GET'])
@login_required
def caught_bunny_photo(game_name):
    game = Game.query.filter_by(name=game_name).first_or_404()
    timestamp = request.args['timestamp']
    bunny_name = request.args['bunny_name']
    hunter_name = request.args['hunter_name']
    hunter = GamePlayer.query.join(User).filter(
        (GamePlayer.user_id == User.id) &
        (GamePlayer.game_id == game.id) &
        (User.name == hunter_name) &
        (GamePlayer.role == Role.hunter)).first_or_404()
    if not (game.owned_by(current_user) or current_user.player_in(game) == hunter):
        abort(403)
    directory = get_caught_bunny_photo_directory(game)
    filename = get_bunny_photo_filename(directory, timestamp, hunter_name, bunny_name)
    photo_path = safe_join(directory, filename)
    #TODO: Implement switch between serve self and serve by webserver
    return send_file(photo_path, conditional=True, as_attachment=False)

@bp.route('/game/<game_name>/review')
@login_required
def review_caught_bunny_photos(game_name):
    game = get_game_if_owner(game_name)
    pcp_id = request.args.get('pcp_id', default=-1, type=int)
    action = request.args.get('action', default='none', type=str).lower()
    if pcp_id != -1:
        pcp = PlayerCaughtPlayer.query.filter_by(id=pcp_id).first_or_404()
        review = Review.parse_string(action)
        pcp.review = review
        db.session.commit()
    return render_template('review_caught_bunny_photos.html', game=game)

@bp.route('/user/<username>/send_location', methods=['POST'])
@login_required
def send_location(username):
    user = User.query.filter_by(name=username).first_or_404()
    last_location = user.last_location()

    latitude = request.form.get('lat', default=None, type=float)
    longitude = request.form.get('long', default=None, type=float)
    if latitude is None or longitude is None:
        return '', 400

    # Check if previous two locations are exactly the same,
    # if so, only update timestamp of last location
    if last_location:
        if datetime.utcnow() - last_location.timestamp < timedelta(seconds=30):
            return '', 204
        if (latitude == last_location.latitude and
                longitude == last_location.longitude and
                len(user.locations) >= 2):
            before_last_location = user.locations[-2]
            if before_last_location:
                if (latitude == before_last_location.latitude and
                        longitude == before_last_location.longitude):
                    last_location.timestamp = datetime.utcnow()
                    db.session.commit()
                    return '', 204

    user.locations.append(Location(longitude=longitude, latitude=latitude))
    db.session.commit()
    return '', 204

@bp.route('/game/<game_name>/get_locations', methods=['POST'])
@login_required
def poll_locations(game_name):
    game = Game.query.filter_by(name=game_name).first_or_404()
    role = current_user.role_in_game(game)
    if role is None or role == Role.none:
        abort(403)
    
    payload = request.get_json()
    if payload is None:
        abort(400)
    mode = get_value_if_key_exists(payload, 'mode', 'last')
    last_update = get_value_if_key_exists(payload, 'last_update', 'none')
    last_update = datetime.strptime(last_update, '%Y-%m-%d %H:%M:%S:%f') if last_update != 'none' else datetime.min
    requested_users = get_value_if_key_exists(payload, 'requested_users', 'none')
    #print(f'mode: {mode}\nlast_request: {last_update}\nrequested_users: {requested_users}')
    response_objects = []
    if role in (Role.owner, Role.hunter):
        for username in requested_users:
            locations = get_user_locations(game, username, mode, last_update, role == Role.hunter)
            #print(locations)
            if locations:
                response_objects.append(locations)
    response_objects = [obj for obj_list in response_objects for obj in obj_list]
    return json.dumps(response_objects, cls=LocationEncoder)

def get_value_if_key_exists(dictionary, key, default=None):
    return dictionary[key] if key in dictionary else default

def get_user_locations(game, username, mode, last_update, hunter=False):
    user = User.query.filter_by(name=username).first()
    if user is None:
        return None
    if hunter and user.role_in_game(game) != Role.bunny:
        return None
    if mode == 'accumulative':
        if game.end_time or datetime.max < last_update: # Don't return locations when the game is finished
            return []
        offset = current_app.config['HUNTER_LOCATION_DELAY'] if hunter else 0
        locations = user.locations_during_game(game, offset)
        if not locations:
            return None
        return [location for location in locations if location.timestamp - last_update > timedelta(milliseconds=1)]

@bp.route('/user/<username>')
@login_required
def user_profile(username):
    user = User.query.filter_by(name=username).first_or_404()
    if current_user != user:
        abort(403)
    return render_template('user_profile.html', user=user)