import json
from typing import Any, Dict, List, Union
import requests
import pandas as pd
import streamlit as st

def echa_request(cas_num: str) -> Dict[str, Any]:
    url = 'https://api.cosmoguard.it/api/v1/echa/search'
    response = requests.post(url, json={'cas': cas_num})
    data = response.json()
    if data['success'] == True:
        return data['data']
    else:
        return data['error']

def cosing_request(cas_num: str) -> Dict[str, Any]:
    url = 'https://api.cosmoguard.it/api/v1/cosing/search'
    response = requests.post(url, json={
        "full": True,
        "mode": "cas",
        "text": cas_num
    })
    data = response.json()
    if data['success'] == True:
        return data['data']
    else:
        return data['error']
    
def generate_pdf_download(cas, origin, link):
    url = 'https://api.cosmoguard.it/api/v1/common/generate-pdf'
    name = f'{cas}_{origin}'
    if link is not None:
        response = requests.post(
            url,
            json = {
                'link': link,
                'name': name
            }
        )
        data = response.json()
    else:
        data = {
            'success': False,
            'error': 'No dossier exists for this origin.'
        }
    if data['success'] == True:
        url = f'https://api.cosmoguard.it/api/v1/common/download-pdf/{name}'
        response = requests.get(url)
        response.raise_for_status()
        return response.content
    else:
        return data['error']
    
def cosing_download(ref_no: str):
    url = f'https://api.tech.ec.europa.eu/cosing20/1.0/api/cosmetics/{ref_no}/export-pdf'
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0',
        'Accept': 'application/json, text/plain, */*',
        'Accept-Language': 'it-IT,it;q=0.9',
        'Cache-Control': 'No-Cache',
        'Origin': 'https://ec.europa.eu',
        'Referer': 'https://ec.europa.eu/',
        'Sec-Fetch-Dest': 'empty',
        'Sec-Fetch-Mode': 'cors',
        'Sec-Fetch-Site': 'same-site',
    }
    response = requests.get(url, headers=headers)
    if response.status_code == 200:
        return response.content
    else:
        return f"Error: {response.status_code} - {response.text}"