refactor(withdraw): migrate extension to Vue

lnbits/extensions/withdraw/models.py

@@ -0,0 +1,46 @@
+from flask import url_for
+from lnurl import Lnurl, LnurlWithdrawResponse, encode as lnurl_encode
+from os import getenv
+from typing import NamedTuple
+
+
+class WithdrawLink(NamedTuple):
+    id: str
+    wallet: str
+    title: str
+    min_withdrawable: int
+    max_withdrawable: int
+    uses: int
+    wait_time: int
+    is_unique: bool
+    unique_hash: str
+    k1: str
+    open_time: int
+    used: int
+
+    @property
+    def is_spent(self) -> bool:
+        return self.used >= self.uses
+
+    @property
+    def is_onion(self) -> bool:
+        return getenv("LNBITS_WITH_ONION", 1) == 1
+
+    @property
+    def lnurl(self) -> Lnurl:
+        scheme = None if self.is_onion else "https"
+        url = url_for("withdraw.api_lnurl_response", unique_hash=self.unique_hash, _external=True, _scheme=scheme)
+        return lnurl_encode(url)
+
+    @property
+    def lnurl_response(self) -> LnurlWithdrawResponse:
+        scheme = None if self.is_onion else "https"
+        url = url_for("withdraw.api_lnurl_callback", unique_hash=self.unique_hash, _external=True, _scheme=scheme)
+
+        return LnurlWithdrawResponse(
+            callback=url,
+            k1=self.k1,
+            min_withdrawable=self.min_withdrawable * 1000,
+            max_withdrawable=self.max_withdrawable * 1000,
+            default_description="LNbits LNURL withdraw",
+        )