konfluks/lumbunglib/video.py

#!/bin/python3

# lumbung.space video feed generator
# c 2021 roel roscam abbing gpvl3 etc

import ast
import datetime
import json
import os
import shutil
from pathlib import Path

import arrow
import jinja2
import peertube
import requests


# jinja filters & config
def duration(n):
    """
    convert '6655' in '1:50:55'

    """
    return str(datetime.timedelta(seconds=n))


def linebreaks(text):
    if not text:
        return text
    else:
        import re

        br = re.compile(r"(\r\n|\r|\n)")
        return br.sub(r"<br />\n", text)


env = jinja2.Environment(loader=jinja2.FileSystemLoader(os.path.curdir))
env.filters["duration"] = duration
env.filters["linebreaks"] = linebreaks

host = "https://tv.lumbung.space"

configuration = peertube.Configuration(host=host + "/api/v1")

client = peertube.ApiClient(configuration)

v = peertube.VideoApi(client)

response = v.videos_get(count=100, filter="local", tags_one_of="publish")

videos = response.to_dict()
videos = videos["data"]


def create_post(post_directory, video_metadata):
    global client  # lazy

    if not os.path.exists(post_dir):
        os.mkdir(post_directory)

    preview_image = video_metadata["preview_path"].split("/")[-1]

    if not os.path.exists(os.path.join(post_directory, preview_image)):
        # download preview image
        response = requests.get(host + video_metadata["preview_path"], stream=True)
        with open(os.path.join(post_directory, preview_image), "wb") as img_file:
            shutil.copyfileobj(response.raw, img_file)
            print("Downloaded cover image")

    # replace the truncated description with the full video description
    # peertube api is some broken thing in between a py dict and a json file
    api_response = peertube.VideoApi(client).videos_id_description_get(
        video_metadata["uuid"]
    )
    long_description = ast.literal_eval(api_response)
    video_metadata["description"] = long_description["description"]

    with open(os.path.join(post_directory, "index.md"), "w") as f:
        post = template.render(v=video_metadata, host=host, preview_image=preview_image)
        f.write(post)

    with open(os.path.join(post_directory, ".timestamp"), "w") as f:
        timestamp = arrow.get(video_metadata["updated_at"])
        f.write(timestamp.format("X"))


def update_post(post_directory, video_metadata):
    if os.path.exists(post_directory):
        if os.path.exists(os.path.join(post_directory, ".timestamp")):
            old_timestamp = open(os.path.join(post_directory, ".timestamp")).read()

            # FIXME: this is ugly but I need to do this because arrow removes miliseconds
            current_timestamp = arrow.get(video_metadata["updated_at"])
            current_timestamp = arrow.get(current_timestamp.format("X"))

            if current_timestamp > arrow.get(old_timestamp):
                print(
                    "Updating",
                    video_metadata["name"],
                    "({})".format(video_metadata["uuid"]),
                )
                create_post(post_dir, video_metadata)
            else:
                print(
                    "Video current: ",
                    video_metadata["name"],
                    "({})".format(video_metadata["uuid"]),
                )
        else:
            # compat for when there is no timestamp yet..
            create_post(post_dir, video_metadata)


output_dir = os.environ.get(
    "OUTPUT_DIR", "/home/r/Programming/lumbung.space/lumbung.space-web/content/video"
)

if not os.path.exists(output_dir):
    os.mkdir(output_dir)

cwd = Path.resolve()
template = env.get_template(os.path.join(cwd, "templates" "video.md"))

existing_posts = os.listdir(output_dir)

for video_metadata in videos:
    post_dir = os.path.join(output_dir, video_metadata["uuid"])

    if (
        video_metadata["uuid"] not in existing_posts
    ):  # if there is a video we dont already have, make it
        print("New: ", video_metadata["name"], "({})".format(video_metadata["uuid"]))
        create_post(post_dir, video_metadata)

    elif (
        video_metadata["uuid"] in existing_posts
    ):  # if we already have the video do nothing, possibly update
        update_post(post_dir, video_metadata)
        existing_posts.remove(
            video_metadata["uuid"]
        )  # create list of posts which have not been returned by peertube

for post in existing_posts:
    print("deleted", post)  # rm posts not returned
    shutil.rmtree(os.path.join(output_dir, post))