#!/usr/bin/env python3

import json
import csv
import os.path
import requests

__author__ = "Alexander Popov"
__version__ = "2.1.0"
__license__ = "Unlicense"


def get_pages(username, api_key, limit=200):
    """ Getting the number of pages with scrobbling data """

    response = requests.get(
        "https://ws.audioscrobbler.com/2.0/"
        "?method=user.getrecenttracks&user="
        "{0}&api_key={1}&format=json&limit={2}".format(username, api_key, limit)
    )

    data = json.loads(response.content.decode("utf8"))

    return int(data["recenttracks"]["@attr"]["totalPages"])


def get_page(username, api_key, page, limit=200):
    """ Getting scrobbling data from a page """

    response = requests.get(
        "https://ws.audioscrobbler.com/2.0/"
        "?method=user.getrecenttracks&user={0}&api_key={1}&format=json"
        "&limit={2}&page={3}".format(username, api_key, limit, page)
    )

    data = json.loads(response.content.decode("utf8"))

    return data["recenttracks"]["track"]


def get_now_scrobbling(username, api_key):
    """ Getting now scrobbling track """

    response = requests.get(
        "https://ws.audioscrobbler.com/2.0/"
        "?method=user.getrecenttracks&user={0}"
        "&api_key={1}&format=json&limit=1".format(username, api_key)
    )

    data = json.loads(response.content.decode("utf-8"))

    if "@attr" in data["recenttracks"]["track"][0]:
        return True
    else:
        return False


def scrobbling_export(tracks, username, export_format="dump"):
    """ Save scrobbled track via various format """

    if export_format == "dump":
        with open("%s.json" % (username), "w", encoding="utf-8") as f:
            data = json.dumps(tracks, indent=4, sort_keys=True, ensure_ascii=False)
            f.write(data)

    elif export_format == "simple":
        _ = []

        for track in tracks:
            _.append(
                {
                    "artist": track["artist"]["#text"],
                    "name": track["name"],
                    "album": track["album"]["#text"],
                    "date": int(track["date"]["uts"]),
                }
            )

        with open("%s.json" % (username), "w", encoding="utf-8") as f:
            data = json.dumps(_, indent=4, sort_keys=True, ensure_ascii=False)
            f.write(data)

    elif export_format == "csv":
        _ = []

        for track in tracks:
            _.append(
                [
                    track["artist"]["#text"],
                    track["name"],
                    track["album"]["#text"],
                    int(track["date"]["uts"]),
                ]
            )

        with open("%s.csv" % (username), "w", encoding="utf-8", newline="") as f:
            data = csv.writer(f, quoting=csv.QUOTE_NONNUMERIC, delimiter=",")
            data.writerow(["artist", "track", "album", "date"])
            data.writerows(_)

    return 1


if __name__ == "__main__":
    _ = dict()

    if os.path.exists("./config.json"):
        with open("./config.json") as f:
            _ = json.loads(f.read())
    else:
        _["api_key"] = input("API Key: ")
        _["username"] = input("Username: ")
    api_key, username = _["api_key"], _["username"]

    total_pages = get_pages(username, api_key)
    current_page = 1
    scrobbled = []

    while current_page <= total_pages:
        print(
            "\r{0:.2f}% [{1} of {2}]".format(
                (current_page * 100 / total_pages), current_page, total_pages
            ),
            end="",
        )

        response = get_page(username, api_key, current_page)

        for track in response:
            scrobbled.append(track)

        current_page += 1

    # if get_now_scrobbling(username, api_key):
    #     scrobbled.pop(0)

    if scrobbling_export(scrobbled, username, _["export_format"]):
        print("\n{0} tracks saved!".format(len(scrobbled), username))