import json
import sys
def main():
    try:
        from instagrapi import Client
    except ImportError:
        print(json.dumps({"error": "instagrapi not installed (pip install -r requirements.txt)"}))
        return
    try:
        req = json.loads(sys.stdin.read() or "{}")
    except Exception as e:
        print(json.dumps({"error": f"bad input: {e}"}))
        return
    action = req.get("action", "user")
    username = (req.get("username") or "").lstrip("@")
    if not username:
        print(json.dumps({"error": "username required"}))
        return
    try:
        cl = Client()
        cl.delay_range = [1, 3]
        if action == "user":
            info = cl.user_info_by_username_v1(username)
            print(json.dumps({
                "found": True, "platform": "instagram", "username": username,
                "fullName": info.full_name, "biography": info.biography,
                "followers": info.follower_count, "following": info.following_count,
                "posts": info.media_count, "private": info.is_private,
                "verified": info.is_verified, "profileUrl": f"https://instagram.com/{username}",
            }))
        elif action == "posts":
            uid = cl.user_id_from_username(username)
            medias = cl.user_medias(uid, amount=int(req.get("count", 12) or 12))
            print(json.dumps({
                "username": username,
                "posts": [{
                    "id": str(m.id), "caption": (m.caption_text or "")[:500],
                    "likes": m.like_count, "takenAt": str(m.taken_at),
                } for m in medias],
            }))
        else:
            print(json.dumps({"error": f"unknown action {action}"}))
    except Exception as e:
        print(json.dumps({"found": False, "username": username, "error": str(e)[:500]}))


if __name__ == "__main__":
    main()