#!/usr/bin/env python3

import os
import sys
import requests


TMDB_TOKEN = "eyJhbGciOiJIUzI1NiJ9.eyJhdWQiOiJlOTIwMzJlMDk1NmEzMWEyZjQ4MDA4NGI0MTg4OTIyZCIsIm5iZiI6MTc5MDQzMjc5NS42NjcsInN1YiI6IjZhYjdkNjFiZDY5NmI1ZGFjNGM5NDRkMyIsInNjb3BlcyI6WyJhcGlfcmVhZCJdLCJ2ZXJzaW9uIjoxfQ.IjddKtQ5X62A63kYslH24Pxg_TFCzu-QpGak_Pemgr8"

if not TMDB_TOKEN:
    print("ERROR: TMDB_API_TOKEN is not set.")
    print()
    print("Example:")
    print("  export TMDB_API_TOKEN='your_token'")
    sys.exit(1)


BASE_URL = "https://api.themoviedb.org/3"

HEADERS = {
    "Authorization": f"Bearer {TMDB_TOKEN}",
    "accept": "application/json",
}


def tmdb_get(endpoint, params=None):
    """Perform a GET request against TMDb."""

    url = BASE_URL + endpoint

    response = requests.get(
        url,
        headers=HEADERS,
        params=params,
        timeout=15,
    )

    response.raise_for_status()

    return response.json()


def find_by_imdb(imdb_id):
    """
    Find a movie/TV show/person using an IMDb ID.

    Example:
        tt1234567
    """

    data = tmdb_get(
        f"/find/{imdb_id}",
        {
            "external_source": "imdb_id",
        },
    )

    return data


def find_by_tvdb(tvdb_id):
    """
    Try to find a TV show using a TVDB ID.

    TMDb's external ID system does not expose every external
    ID through the same /find mechanism, so we first try the
    external ID endpoint.
    """

    data = tmdb_get(
        f"/find/{tvdb_id}",
        {
            "external_source": "tvdb_id",
        },
    )

    return data


def get_tv_details(tmdb_id):
    """
    Retrieve TV show details in German.
    """

    return tmdb_get(
        f"/tv/{tmdb_id}",
        {
            "language": "de-DE",
        },
    )


def get_movie_details(tmdb_id):
    """
    Retrieve movie details in German.
    """

    return tmdb_get(
        f"/movie/{tmdb_id}",
        {
            "language": "de-DE",
        },
    )


def print_results(data):
    """Print useful IDs returned by TMDb."""

    print()
    print("TMDb result")
    print("=" * 60)

    movies = data.get("movie_results", [])
    tv = data.get("tv_results", [])

    if movies:
        print()
        print("MOVIE")

        for movie in movies:
            print(f"TMDb ID:       {movie.get('id')}")
            print(f"Title:         {movie.get('title')}")
            print(f"Original:      {movie.get('original_title')}")
            print(f"Release date:  {movie.get('release_date')}")

    if tv:
        print()
        print("TV SHOW")

        for show in tv:
            print(f"TMDb ID:       {show.get('id')}")
            print(f"Name:          {show.get('name')}")
            print(f"Original:      {show.get('original_name')}")
            print(f"First air:     {show.get('first_air_date')}")

    if not movies and not tv:
        print("No result found.")


def main():

    if len(sys.argv) != 3:
        print("Usage:")
        print()
        print("  python tmdb_lookup.py imdb tt1234567")
        print("  python tmdb_lookup.py tvdb 417272")
        sys.exit(1)

    id_type = sys.argv[1].lower()
    external_id = sys.argv[2]

    if id_type == "imdb":

        print(f"Looking up IMDb ID: {external_id}")

        data = find_by_imdb(external_id)

    elif id_type == "tvdb":

        print(f"Looking up TVDB ID: {external_id}")

        data = find_by_tvdb(external_id)

    else:
        print("ERROR: ID type must be:")
        print("  imdb")
        print("  tvdb")
        sys.exit(1)

    print_results(data)

    # --------------------------------------------------------
    # Get detailed German metadata
    # --------------------------------------------------------

    movies = data.get("movie_results", [])
    tv = data.get("tv_results", [])

    if tv:

        tmdb_id = tv[0]["id"]

        details = get_tv_details(tmdb_id)

        print()
        print("German TV metadata")
        print("=" * 60)

        print(f"TMDb ID:       {details.get('id')}")
        print(f"German name:   {details.get('name')}")
        print(f"Original name: {details.get('original_name')}")
        print(f"First air:     {details.get('first_air_date')}")
        print(f"Overview:      {details.get('overview')}")

    elif movies:

        tmdb_id = movies[0]["id"]

        details = get_movie_details(tmdb_id)

        print()
        print("German movie metadata")
        print("=" * 60)

        print(f"TMDb ID:       {details.get('id')}")
        print(f"German title:  {details.get('title')}")
        print(f"Original:      {details.get('original_title')}")
        print(f"Release date:  {details.get('release_date')}")
        print(f"Overview:      {details.get('overview')}")

    else:

        print()
        print("No movie or TV result found.")


if __name__ == "__main__":
    main()