#!/usr/bin/env python3
"""
A music steaming application.
"""
import random

import asyncpg
from fastapi import FastAPI, Request
from fastapi.templating import Jinja2Templates
from fastapi.staticfiles import StaticFiles
from fastapi.responses import HTMLResponse

import config
#import buckler_fastapi
import database as db

app = FastAPI()
#app.add_middleware(buckler_fastapi.BucklerSessionMiddleware)

app.mount("/static", StaticFiles(directory="static"), name="static")
templates = Jinja2Templates(directory="templates")


@app.get("/", response_class=HTMLResponse)
async def index(request: Request):
	playlist_name = request.cookies.get('playlist', '')
	artists = await db.get_artists(request, playlist_name)
	playlists = await db.get_playlists(request)
	context = {'request': request, 'artists': artists, 'playlists': playlists}
	return templates.TemplateResponse('index.html', context)


@app.get("/rand_track/")
async def get_rand_track(request: Request, playlist: str = ''):
	"""Return a random track."""
	track = await db.get_random_track(request, playlist)
	return track


@app.get("/albums/")
async def get_albums(request: Request, albumartist: str, playlist: str = ''):
	"""Return all albums associated with a particular albumartist."""
	albums = await db.get_albums(request, albumartist, playlist)
	return albums


@app.get("/tracks/")
async def get_tracks(request: Request, albumartist: str, album: str, date: str, playlist: str = ''):
	"""Select an album and return all associated tracks."""
	tracks = await db.get_tracks(request, albumartist, album, date, playlist)
	return tracks


@app.on_event("startup")
async def startup():
	app.state.db_pool = await asyncpg.create_pool(**config.db)