# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.

import requests
import os

def get_all_releases(token):
    url = f"https://api.github.com/repos/meta-llama/llama-stack/releases"
    headers = {"Accept": "application/vnd.github.v3+json"}
    
    if token:
        headers["Authorization"] = f"token {token}"
    
    response = requests.get(url, headers=headers)
    
    if response.status_code == 200:
        return response.json()
    else:
        raise Exception(f"Error fetching releases: {response.status_code}, {response.text}")


def merge_release_notes(output_file, token=None):
    releases = get_all_releases(token)
    
    with open(output_file, "w", encoding="utf-8") as md_file:
        md_file.write(f"# Changelog\n\n")
        
        for release in releases:
            md_file.write(f"# {release['tag_name']}\n")
            md_file.write(f"Published on: {release['published_at']}\n\n")
            md_file.write(f"{release['body']}\n\n")
            md_file.write("---\n\n")
    
    print(f"Merged release notes saved to {output_file}")

if __name__ == "__main__":
    OUTPUT_FILE = "CHANGELOG.md"
    TOKEN = os.getenv("GITHUB_TOKEN")
    merge_release_notes(OUTPUT_FILE, TOKEN)