from typing import *
import httpx
from mcp.server.fastmcp import FastMCP

server = FastMCP(name="streamable-http-mcp-server-test", json_response=False, stateless_http=False)

async def make_request(url: str, data: Dict[str, Any]):
    headers = {"Accept": "application/json"}
    async with httpx.AsyncClient(verify=False) as client:
        try:
            response = await client.post(url, headers=headers, json=data)
            response.raise_for_status()
            return response.json()
        except:
            return None
        
@server.tool()
async def search_academic_papers_arxiv(keyword: str, limit: int = 5) -> str:
    """
    Search papers from arXiv database with specified keywords [optional: a limit of papers the user wants]
    Args: keyword: string, [optional: limit: integer, set limit to 5 if not specified]
    """
    response = await make_request("https://organizedprogrammers-arxiv.hf.space/search", {"keyword": keyword, "limit": limit})
    if not response:
        return "Unable to find papers | No papers has been found"
    return "\n".join([f"arXiv n°{paper_id} - {paper_meta['title']} by {paper_meta['authors']} : {paper_meta['abstract']}" for paper_id, paper_meta in response['message'].items()])

@server.tool()
async def get_arxiv_pub_text(arxiv_id: str) -> str:
    """
    Extract publication PDF via arXiv ID
    Returns the full content of the publication
    Args: arxiv_id -> string
    """
    response = await make_request("https://organizedprogrammers-arxiv.hf.space/extract_pdf/arxiv_id", {"doc_id": arxiv_id})
    if not response:
        return "Unable to extract PDF | arXiv PDF not found"
    return response["message"]["text"]

@server.tool()
async def get_document_url(doc_id: str) -> str:
    """
    Find technical document or specification from 3GPP / ETSI / GP by a document ID
    Returns the URL (also scope + version if doc is a specification [not all specifications have a version or scope])
    Arguments: doc_id -> string
    """
    response = await make_request('https://organizedprogrammers-docfinder.hf.space/find/single', {"doc_id": doc_id})
    if not response:
        return "Unable to find document/specification"
    version = response.get('version', 'unavailable')
    scope = response.get('scope', 'unavailable')
    return f'Downloadable !\nDoc No. {doc_id}\nURL : {response.get("url")}\nVersion : {version}\nScope : {scope}'

@server.tool()
async def search_specifications_with_keywords(keywords: str, threshold: int = 60, source: Literal["3GPP", "ETSI", "all"] = "all", spec_type: Optional[Literal["TS", "TR"]] = None):
    """
    Search specifications from 3GPP and/or ETSI with keywoeds (Based off BM25 scoring)
    Returns a list of specifications metadata that matches the similarity score threshold, the keywords, the source and specification type
    Arguments:
        - keywords -> string
        - threshold -> integer (by default, set to 60) [between 0-100]
        - source -> string (either '3GPP', 'ETSI' or 'all', by default, set to 'all')
        - spec_type -> string (either 'TS' or 'TR' or None, by default, set to None)
    """
    response = await make_request('https://organizedprogrammers-docfinder.hf.space/search/bm25', {"keywords": keywords, "threshold": threshold, "source": source, "spec_type": spec_type})
    if not response:
        return "Unable to search specifications | No specifications has been found"
    results = response["results"]
    return "\n---\n".join([f"Specification ID: {spec['id']}\nTitle: {spec['title']}\nType: {'Technical Specification' if spec['spec_type'] == 'TS' else 'Technical Report'}\nVersion: {spec.get('version', 'unavailable')}\nScope: {spec.get('scope', 'unavailable')}\nWorking Group: {spec.get('working_group', 'not defined')}\nURL: {spec.get('url', 'unavailable')}" for spec in results])

@server.tool()
async def get_spec_text(spec_id: str) -> Union[Dict[str, str], str]:
    """
    Extract specification from 3GPP or ETSI
    Returns a dictionary k:v where k is the section (1., 2.2.1, ...) and v, the content of k, or a string if failed
    Args: spec_id -> string
    """
    response = await make_request('https://organizedprogrammers-specsplitter.hf.space/extract_text/structured', {"spec_id": spec_id})
    if not response:
        return "Unable to extract specification text"
    return response

app = server.streamable_http_app