lnbits-legend/lnbits/extensions/lnticket/views_api.py

import re
from quart import g, jsonify, request
from http import HTTPStatus

from fastapi import FastAPI, Query
from fastapi.encoders import jsonable_encoder
from fastapi.responses import JSONResponse
from pydantic import BaseModel

from lnbits.core.crud import get_user, get_wallet
from lnbits.core.services import create_invoice, check_invoice_status
from lnbits.decorators import api_check_wallet_key, api_validate_post_request

from . import lnticket_ext
from .crud import (
    create_ticket,
    set_ticket_paid,
    get_ticket,
    get_tickets,
    delete_ticket,
    create_form,
    update_form,
    get_form,
    get_forms,
    delete_form,
)


# FORMS


@lnticket_ext.get("/api/v1/forms")
@api_check_wallet_key("invoice")
async def api_forms():
    wallet_ids = [g.wallet.id]

    if "all_wallets" in request.args:
        wallet_ids = (await get_user(g.wallet.user)).wallet_ids

    return (
        [form._asdict() for form in await get_forms(wallet_ids)],
        HTTPStatus.OK,
    )

class CreateData(BaseModel):
    wallet: str = Query(...)
    name: str = Query(...)
    webhook: str = Query(None)
    description: str = Query(..., min_length=0)
    amount: int = Query(..., ge=0)
    flatrate: int = Query(...)

@lnticket_ext.post("/api/v1/forms")
@lnticket_ext.put("/api/v1/forms/{form_id}")
@api_check_wallet_key("invoice")
# @api_validate_post_request(
#     schema={
#         "wallet": {"type": "string", "empty": False, "required": True},
#         "name": {"type": "string", "empty": False, "required": True},
#         "webhook": {"type": "string", "required": False},
#         "description": {"type": "string", "min": 0, "required": True},
#         "amount": {"type": "integer", "min": 0, "required": True},
#         "flatrate": {"type": "integer", "required": True},
#     }
# )
async def api_form_create(data: CreateData, form_id=None):
    if form_id:
        form = await get_form(form_id)

        if not form:
            return {"message": "Form does not exist."}, HTTPStatus.NOT_FOUND

        if form.wallet != g.wallet.id:
            return jsonify{"message": "Not your form."}, HTTPStatus.FORBIDDEN

        form = await update_form(form_id, **data)
    else:
        form = await create_form(**data)
    return form._asdict(), HTTPStatus.CREATED


@lnticket_ext.delete("/api/v1/forms/{form_id}")
@api_check_wallet_key("invoice")
async def api_form_delete(form_id):
    form = await get_form(form_id)

    if not form:
        return {"message": "Form does not exist."}, HTTPStatus.NOT_FOUND

    if form.wallet != g.wallet.id:
        return {"message": "Not your form."}, HTTPStatus.FORBIDDEN

    await delete_form(form_id)

    return "", HTTPStatus.NO_CONTENT


#########tickets##########


@lnticket_ext.get("/api/v1/tickets")
@api_check_wallet_key("invoice")
async def api_tickets(all_wallets: bool = Query(None)):
    wallet_ids = [g.wallet.id]

    if all_wallets:
        wallet_ids = (await get_user(g.wallet.user)).wallet_ids

    return (
        [form._asdict() for form in await get_tickets(wallet_ids)],
        HTTPStatus.OK,
    )

class CreateTicketData(BaseModel):
    form: str = Query(...)
    name: str = Query(...)
    email: str = Query("")
    ltext: str = Query(...)
    sats: int = Query(..., ge=0)

@lnticket_ext.post("/api/v1/tickets/{form_id}")
# @api_validate_post_request(
#     schema={
#         "form": {"type": "string", "empty": False, "required": True},
#         "name": {"type": "string", "empty": False, "required": True},
#         "email": {"type": "string", "empty": True, "required": True},
#         "ltext": {"type": "string", "empty": False, "required": True},
#         "sats": {"type": "integer", "min": 0, "required": True},
#     }
# )
async def api_ticket_make_ticket(data: CreateTicketData, form_id):
    form = await get_form(form_id)
    if not form:
        return {"message": "LNTicket does not exist."}, HTTPStatus.NOT_FOUND

    nwords = len(re.split(r"\s+", data["ltext"]))
    sats = data["sats"]

    try:
        payment_hash, payment_request = await create_invoice(
            wallet_id=form.wallet,
            amount=sats,
            memo=f"ticket with {nwords} words on {form_id}",
            extra={"tag": "lnticket"},
        )
    except Exception as e:
        return {"message": str(e)}, HTTPStatus.INTERNAL_SERVER_ERROR

    ticket = await create_ticket(
        payment_hash=payment_hash, wallet=form.wallet, **data
    )

    if not ticket:
        return (
            {"message": "LNTicket could not be fetched."},
            HTTPStatus.NOT_FOUND,
        )

    return
        {"payment_hash": payment_hash, "payment_request": payment_request},
        HTTPStatus.OK


@lnticket_ext.get("/api/v1/tickets/{payment_hash}")
async def api_ticket_send_ticket(payment_hash):
    ticket = await get_ticket(payment_hash)
    try:
        status = await check_invoice_status(ticket.wallet, payment_hash)
        is_paid = not status.pending
    except Exception:
        return {"paid": False}, HTTPStatus.OK

    if is_paid:
        wallet = await get_wallet(ticket.wallet)
        payment = await wallet.get_payment(payment_hash)
        await payment.set_pending(False)
        ticket = await set_ticket_paid(payment_hash=payment_hash)
        return {"paid": True}, HTTPStatus.OK

    return {"paid": False}, HTTPStatus.OK


@lnticket_ext.delete("/api/v1/tickets/{ticket_id}")
@api_check_wallet_key("invoice")
async def api_ticket_delete(ticket_id):
    ticket = await get_ticket(ticket_id)

    if not ticket:
        return {"message": "Paywall does not exist."}, HTTPStatus.NOT_FOUND

    if ticket.wallet != g.wallet.id:
        return {"message": "Not your ticket."}, HTTPStatus.FORBIDDEN

    await delete_ticket(ticket_id)

    return "", HTTPStatus.NO_CONTENT