Download all thumbnails of a yt channel.py

import os.path

import googleapiclient.discovery
import urllib.request
import datetime

# Script Written by LLM

# Set up API credentials - Created here (API Keys): https://console.cloud.google.com/apis/credentials
api_key = '' # Replace with your API key

# Create a YouTube API client
youtube = googleapiclient.discovery.build('youtube', 'v3', developerKey=api_key)

# Specify the channel name
channel_name = ''  # Replace with a channel name

# Request the channel ID using the channel name
channel_response = youtube.channels().list(
    part='id',
    forUsername=channel_name
).execute()

# Retrieve the channel ID
channel_id = channel_response['items'][0]['id']
os.mkdir(channel_id)

# Define time range for the search
published_before = datetime.datetime.now()
published_after = datetime.datetime(year=2000, month=1, day=1)  # Adjust as needed

# Request the uploads playlist ID of the channel
uploads_response = youtube.channels().list(
    part='contentDetails',
    id=channel_id
).execute()

# Retrieve the uploads playlist ID
uploads_playlist_id = uploads_response['items'][0]['contentDetails']['relatedPlaylists']['uploads']


# Request the list of videos uploaded to the channel (with pagination)
next_page_token = None
video_ids = []

while True:
    response = youtube.playlistItems().list(
        part='snippet',
        playlistId=uploads_playlist_id,
        maxResults=50,  # Adjust the number of results per page as per your requirements
        pageToken=next_page_token
    ).execute()

    # Retrieve video IDs from the current page
    for item in response['items']:
        video_ids.append(item['snippet']['resourceId']['videoId'])

    # Check if there are more pages
    if 'nextPageToken' in response:
        next_page_token = response['nextPageToken']
    else:
        break

# Batch video retrieval
batch_size = 50  # Adjust the batch size as per your requirements

for i in range(0, len(video_ids), batch_size):
    batch_video_ids = video_ids[i:i+batch_size]

    response = youtube.videos().list(
        part='snippet',
        id=','.join(batch_video_ids)
    ).execute()

    for item in response['items']:
        video_id = item['id']

        sizes = ['standard', 'high', 'medium', 'default']
        tsize = next((size for size in sizes if size in item['snippet']['thumbnails']), '')

        thumbnail_url = item['snippet']['thumbnails'][tsize]['url']
        thumbnail_file_name = f'{channel_id}/{video_id}.jpg'
        if not os.path.isfile(thumbnail_file_name):
            urllib.request.urlretrieve(thumbnail_url, thumbnail_file_name)
            print(f'Downloaded thumbnail for video {video_id}.')

        published_at=datetime.datetime.fromisoformat(item['snippet']['publishedAt']).timestamp()
        os.utime(thumbnail_file_name, (published_at,published_at))

print('Thumbnail download completed.')