import os
import json
import base64
import requests
from github import Github

# Path to the GitHub Actions event payload
event_path = os.environ.get("GITHUB_EVENT_PATH")
if not event_path or not os.path.exists(event_path):
    print("No event payload found.")
    exit(1)

with open(event_path, "r") as f:
    event = json.load(f)

# Only proceed if this is a PR comment event
if "pull_request" not in event.get("issue", {}):
    print("Not a PR comment event.")
    exit(0)

pr_number = event["issue"]["number"]
comment_body = event["comment"]["body"]
repo_full_name = event["repository"]["full_name"]
token = os.environ.get("GITHUB_TOKEN")

if not token:
    print("No GITHUB_TOKEN found in environment.")
    exit(1)

gh = Github(token)
repo = gh.get_repo(repo_full_name)
pr = repo.get_pull(pr_number)

files = []
for file in pr.get_files():
    cf = repo.get_contents(file.filename, ref=pr.head.sha)
    content = base64.b64decode(cf.content).decode("utf-8")
    files.append({"filename": file.filename, "content": content})

fastapi_url = "http://127.0.0.1:8000/pr-comments"
payload = {
    "comment": comment_body,
    "files": files
}
response = requests.post(fastapi_url, json=payload)
print(f"FastAPI response: {response.status_code} {response.text}")