from typing import Union
from datetime import date, timedelta

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from contextlib import asynccontextmanager

from src.classes import boardgame_classes, play_classes, statistic_classes
from src.modules import data_connection

@asynccontextmanager
async def lifespan(app: FastAPI):
    # Startup
    data_connection.delete_database()
    data_connection.create_db_and_tables()
    yield
    # Shutdown

app = FastAPI(lifespan=lifespan)

origins = [
    "http://127.0.0.1:8080",
    "http://0.0.0.0:8080" #Will become something like 'bordspellen2.yarnecoppens.com'
]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

@app.get("/")
def read_root():
    return {"Hello": "World"}

@app.get("/boardgame", response_model=boardgame_classes.BoardGame)
def get_boardgame_by_id(id: int):
    requested_boardgame: boardgame_classes.BoardGame = data_connection.get_boardgame(id)
    return requested_boardgame

@app.get("/owned", response_model=list[Union[boardgame_classes.OwnedBoardGame, boardgame_classes.OwnedBoardGameExpansion]])
def get_owned_collection():
    to_return_boardgames = data_connection.get_user_owned_collection()
    return to_return_boardgames


@app.get("/wishlist", response_model=list[Union[boardgame_classes.WishlistBoardGame, boardgame_classes.WishlistBoardGameExpansion]])
def get_wishlist_collection(priority: int = 0):
    return data_connection.get_user_wishlist_collection(priority)


@app.get("/plays", response_model=list[play_classes.Play])
def get_plays():
    requested_plays: list[play_classes.Play] = data_connection.get_plays()[0:10]
    
    return requested_plays


@app.get('/players', response_model=list[play_classes.PlayPlayer])
def get_players_from_play(play_id):
    requested_players: list[play_classes.PlayPlayer] = data_connection.get_players_from_play(play_id)

    return requested_players


@app.get('/statistics/amount_of_games', response_model=statistic_classes.NumberStatistic)
def get_amount_of_games():

    statistic_dict = {
        "name":"Amount of games in owned collection",
        "result":len(data_connection.get_user_owned_collection())
    }

    statistic_to_return = statistic_classes.NumberStatistic(**statistic_dict)

    return statistic_to_return

@app.get('/statistics/amount_of_games_over_time', response_model=statistic_classes.TimeLineStatistic)
def get_amount_of_games_over_time():

    def daterange(start_date: date, end_date: date):
        days = int((end_date - start_date).days)
        for n in range(days):
            yield start_date + timedelta(n)

    games_in_owned_collection = data_connection.get_user_owned_collection()
    games_in_owned_collection.sort(key=lambda x: x.acquisition_date)

    timeline_dict = {}

    for current_date in daterange(games_in_owned_collection[0].acquisition_date, date.today()):
        games_in_collection_at_date = list(filter(lambda game: game.acquisition_date <= current_date, games_in_owned_collection))
        timeline_dict[current_date] = len(games_in_collection_at_date)
    
    statistic_dict = {
        "name":"Amount of games in owned collection over time",
        "result":timeline_dict
    }

    statistic_to_return = statistic_classes.TimeLineStatistic(**statistic_dict)

    return statistic_to_return


@app.get('/statistics/most_expensive_games', response_model=statistic_classes.GameOrderStatistic)
def get_most_expensive_game(top_amount: int = 10):
    
    most_expensive_games: list[Union[boardgame_classes.OwnedBoardGame, boardgame_classes.OwnedBoardGameExpansion]] = data_connection.get_user_owned_collection()

    most_expensive_games.sort(key=lambda x: x.price_paid, reverse=True)

    most_expensive_games = most_expensive_games[0:top_amount]

    statistic_dict = {
        "name":"Most expensive games",
        "result":most_expensive_games
    }

    statistic_to_return = statistic_classes.GameOrderStatistic(**statistic_dict)

    return statistic_to_return