import os
import json
import dotenv
import requests
import time

dotenv.load_dotenv()
HSD_IP = os.getenv("HSD_IP")
HSD_API = os.getenv("HSD_API")

if not os.path.exists("data/listings.json"):
    with open("data/listings.json", "w") as f:
        f.write("[]")


# region Classes
class Listing:
    def __init__(self, **kwargs):
        self.domain = ''
        self.price = 0
        self.description = ''
        self.tx = ''
        self.updated = -1

        for key, value in kwargs.items():
            setattr(self, key, value)
        
        self.updated = int(time.time())

    def __str__(self):
        return f"Listing of {self.domain} for {self.price}, Description: {self.description}, Contact: {self.contact}, Signed: {self.signed}, Signature: {self.signature}, Updated: {self.updated}"
    
    def toHTML(self):
        return f"""
        <div class="card">
            <div class="card-body">
                <h4 class="card-title">{self.domain}/</h4>
                <h6 class="text-muted card-subtitle mb-2">{self.price} HNS</h6>
                <p class="card-text">{self.description}</p>
                <p class="card-text">TX: <code>{self.tx}</code></p>
            </div>
        </div>
        """
    
    def toJSON(self):
        return {
            'domain': self.domain,
            'description': self.description,
            'price': self.price,
            'tx': self.tx,
            'updated': self.updated
        }

    def to_dict(self):
        return self.toJSON()

    def txValid(self):
        # TODO Validate tx is valid
        return True

# endregion

def get_listings() -> list[Listing]:
    with open("data/listings.json", "r") as f:
        data = json.loads(f.read())

    listings = []
    for listing in data:
        listings.append(Listing(**listing))
    return listings

def search_listings(domain) -> Listing:
    listings = get_listings()
    for listing in listings:
        if listing.domain == domain:
            return listing
    return None

def remove_listing(domain) -> bool:
    listings = get_listings()
    for listing in listings:
        if listing.domain == domain:
            listings.remove(listing)
            saveListings(listings)
            return True
    return False

def get_listings_rendered() -> str:
    listings = get_listings()
    html = ""
    for listing in listings:
        html += listing.toHTML()
    return html

def saveListings(listings:list[Listing]):
    with open("data/listings.json", "w") as f:
        f.write(json.dumps(listings,default=Listing.toJSON,indent=4))

def add_listing(listing:Listing):
    if not listing.txValid():
        return "Invalid tx"

    # Remove any listings with the same domain
    remove_listing(listing.domain)

    listings = get_listings()
    listings.append(listing)
    saveListings(listings)
    return True

    
def validate_signature(domain,signature,message) -> bool:
    response = requests.post(f"http://x:{HSD_API}@{HSD_IP}:12037", json={
        "method":"verifymessagewithname",
        "params":[
            domain,
            signature,
            message
        ]
    })
    if response.status_code != 200:
        return False
    
    response = response.json()
    if response['result'] != True:
        return False
    return True

def validate_buy_tx(domain,tx) -> bool:
    return False

def validate_cancel_signature(domain,signature) -> bool:
    message = f"FS: {domain}"
    if (not validate_signature(domain,signature,message)):
        return False
    return True