import os
from datetime import datetime, timedelta
from pathlib import Path
from time import time

from flask import (
    Blueprint,
    abort,
    make_response,
    render_template,
    request,
    send_file,
)
import magic
from htmlmin import minify
from musicbrainzngs import get_image_front

from .modules.api.lb import data as lb_data
from .modules.api.steam import data as steam_data

def tmsmp(sec: int) -> str:
    if sec == 0:
        return 0
    elif sec < 60:
        return f"{sec} s"
    elif sec < 60*60:
        minutes = round(sec / 60, 1)
        return f"{minutes:.0f} m" if minutes.is_integer() else f"{minutes:.1f} m"
    elif sec < 60*60*24:
        hours = round(sec / 3600, 1)
        return f"{hours:.0f} h" if hours.is_integer() else f"{hours:.1f} h"
    else:
        days = round(sec / 86400, 1)
        return f"{days:.0f} d" if days.is_integer() else f"{days:.1f} d"

def utmsmp(unix: int) -> str:
    return datetime \
        .utcfromtimestamp(unix) \
        .strftime('%Y-%m-%d %H:%M:%S')

def rtmsmp(unix: int) -> str:
    return tmsmp(int(time() - unix))

bp = Blueprint(
    "risdeveau",
    __name__,
    subdomain="risdeveau",
    template_folder="..",
    static_folder=None
)

def render_tmpl(filename: str, **kwargs) -> str:
    template_path = os.path.join("risdeveau/templates", filename)
    return minify(
        render_template(template_path, **kwargs),
        remove_empty_space=True
    )

@bp.route("/static/<path:filename>")
def static(filename: str):
    static_folders = ("static", "../root/static")
    for dir in static_folders:
        if os.path.exists(path := os.path.join("blueprints/risdeveau", dir, filename)):
            return send_file(path)
    return abort(404)

@bp.route("/asset/mb/<mbid>")
def mb_cover(mbid):
    r = make_response(image := get_image_front(mbid, "250"))
    r.headers['Content-Type'] = magic.from_buffer(image[:2048], mime=True)
    r.headers['Cache-Control'] = 'public, max-age=86400'
    r.headers['Expires'] = (datetime.now() + timedelta(days=1)) \
        .strftime('%a, %d %b %Y %H:%M:%S GMT')
    return r

args = {
    "lb":     lb_data,
    "steam":  steam_data,
    "tmsmp":  tmsmp,
    "utmsmp": utmsmp,
    "rtmsmp": rtmsmp
}

@bp.route("/")
def index():
    return render_tmpl('index.pug', **args)

@bp.route("/m/<module>")
def module(module):
    if none_match := request.headers.get('if-none-match'):
        match module:
            case "listenbrainz":
                if none_match == lb_data['etag']:
                    return '', 304

            case "steam":
                if none_match == steam_data['etag']:
                    return '', 304

    return render_tmpl(f'{module}.pug', **args)