import json, asyncio
import requests
from requests.models import PreparedRequest
from requests_auth_aws_sigv4 import AWSSigV4
from datetime import datetime
from datetime import UTC
from dateutil.relativedelta import relativedelta

# lib by drago
async def bedrock_model_available(session, key_id="", secret_key="", region="us-east-1", model="anthropic.claude-3-sonnet-20240229-v1%3A"):
    try:
        model = model.replace(":","%3A")
    except Exception as e:
        pass
    endpoint = f'https://bedrock.{region}.amazonaws.com/foundation-model-availability/'+model
    
    headers = {
    'authority': 'bedrock.us-east-1.amazonaws.com',
    'accept': '*/*',
    'accept-language': 'en-GB,en-US;q=0.9,en;q=0.8,pl;q=0.7',
    'amz-sdk-invocation-id': '17a6e1df-4d2a-41c8-87fd-991da34b2a92',
    'amz-sdk-request': 'attempt=1; max=3',
    'origin': 'https://us-east-1.console.aws.amazon.com',
    'referer': 'https://us-east-1.console.aws.amazon.com/',
    'sec-ch-ua': '"Chromium";v="122", "Not(A:Brand";v="24", "Google Chrome";v="122"',
    'sec-ch-ua-mobile': '?0',
    'sec-ch-ua-platform': '"Windows"',
    'sec-fetch-dest': 'empty',
    'sec-fetch-mode': 'cors',
    'sec-fetch-site': 'cross-site',
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36',
    }
    aws_auth = AWSSigV4("bedrock",
        aws_access_key_id=key_id,
        aws_secret_access_key=secret_key,
        region=region
    )
    
    loop = asyncio.get_event_loop()
    req = requests.Request('GET', endpoint,  headers=headers)
    prepared_req = req.prepare()
    signed_req = await loop.run_in_executor(None, aws_auth, prepared_req)

    async with session.get(endpoint, headers=signed_req.headers, data=signed_req.body) as response:
        if response.status != 200:
            response_data = await response.text()
            return json.loads(response_data)
            
        return await response.json() 
        
async def bedrock_send_fake_form(session, key_id="", secret_key="", region="us-east-1", form_data=""):
    endpoint = f'https://bedrock.{region}.amazonaws.com/use-case-for-model-access'
    
    headers = {
    'authority': 'bedrock.us-east-1.amazonaws.com',
    'accept': '*/*',
    'accept-language': 'en-GB,en-US;q=0.9,en;q=0.8,pl;q=0.7',
    'amz-sdk-invocation-id': '17a6e1df-4d2a-41c8-87fd-991da34b2a92',
    'amz-sdk-request': 'attempt=1; max=3',
    'origin': 'https://us-east-1.console.aws.amazon.com',
    'referer': 'https://us-east-1.console.aws.amazon.com/',
    'sec-ch-ua': '"Chromium";v="122", "Not(A:Brand";v="24", "Google Chrome";v="122"',
    'sec-ch-ua-mobile': '?0',
    'sec-ch-ua-platform': '"Windows"',
    'sec-fetch-dest': 'empty',
    'sec-fetch-mode': 'cors',
    'sec-fetch-site': 'cross-site',
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36',
    }
    

    aws_auth = AWSSigV4("bedrock",
        aws_access_key_id=key_id,
        aws_secret_access_key=secret_key,
        region=region
    )
    
    loop = asyncio.get_event_loop()
    req = requests.Request('POST', endpoint, headers=headers)
    prepared_req = req.prepare()
    signed_req = await loop.run_in_executor(None, aws_auth, prepared_req)

    async with session.post(endpoint, headers=signed_req.headers, data=signed_req.body) as response:
        if response.status != 200:
            response_data = await response.text()
            return json.loads(response_data)
            
        return await response.json()

async def send_signed_request_bedrock(session, payload, model="", key_id="", secret_key="", region="us-east-1"):
    try:
        model = model.replace(":","%3A")
    except Exception as e:
        pass
        
    endpoint = f'https://bedrock-runtime.{region}.amazonaws.com/model/{model}/invoke'
    
    headers = {
        "Content-Type": "application/json"
    }
    
    aws_auth = AWSSigV4("bedrock",
        aws_access_key_id=key_id,
        aws_secret_access_key=secret_key,
        region=region
    )
    
    loop = asyncio.get_event_loop()
    req = requests.Request('POST', endpoint, data=payload, headers=headers)
    prepared_req = req.prepare()
    signed_req = await loop.run_in_executor(None, aws_auth, prepared_req)

    async with session.post(endpoint, headers=signed_req.headers, data=signed_req.body) as response:
        if response.status != 200:
            response_data = await response.text()
            return json.loads(response_data)
            
        return await response.json()

async def send_signed_request_ce(session, service, payload, key_id="", secret_key=""):
    ce_endpoint = 'https://ce.us-east-1.amazonaws.com'
    headers = {
        "Content-Type": "application/x-www-form-urlencoded",
        "Accept": "application/json",
    }

    aws_auth = AWSSigV4(service,
        aws_access_key_id=key_id,
        aws_secret_access_key=secret_key,
        region="us-east-1"
    )

    # Creating the request with required headers for AWS Cost Explorer
    headers = {
        "Content-Type": "application/x-amz-json-1.1",
        "Accept": "application/json",
        "X-Amz-Target": f"AWSInsightsIndexService.GetCostAndUsage"  # This header is specific for the GetCostAndUsage operation
    }

    loop = asyncio.get_event_loop()
    req = PreparedRequest()
    req.prepare_url(ce_endpoint, {})
    req.prepare_method('POST')
    req.prepare_headers(headers)
    req.prepare_body(data=payload, files=None)

    signed_req = await loop.run_in_executor(None, aws_auth, req)
    
    async with session.post(ce_endpoint, headers=signed_req.headers, data=signed_req.body) as response:
        response_text = await response.text()
        
        if response.status != 200:
            try:
                return json.loads(response_text)
            except:
                return {}
        return json.loads(response_text)

async def get_service_cost_and_usage(session, key, secret, service="Claude 3 Sonnet (Amazon Bedrock Edition)"):
    now = datetime.now(UTC)  # Use UTC for AWS requests
    six_months_ago = now - relativedelta(months=6)
    start_date = six_months_ago.replace(day=1).strftime('%Y-%m-%d')
    end_date = now.replace(day=30).strftime('%Y-%m-%d')
    
    payload = {
        "TimePeriod": {
            "Start": start_date,
            "End": end_date
        },
        "Granularity": "MONTHLY",
        "Metrics": ["BlendedCost"],
        "Filter": {
            "Dimensions": {
                "Key": "SERVICE",
                "Values": [service]          
            }
        }
    }

    json_payload = json.dumps(payload)

    return await send_signed_request_ce(session, "ce", json_payload, key_id=key, secret_key=secret), service