Boltz.exchange Extension (#922)

* initial commit and still draft, ready for review

* forgot to uncomment this line

* fee estimation and blockheight

* resolve conversation with michael, to use mempool websockets instead of boltz status event

* Update lnbits/extensions/boltz/boltz.py

Co-authored-by: michael1011 <me@michael1011.at>

* add status to swaps, add sorting and data into listing

* add swap status checks, change urls to docker test setup, dynamic minimum and maximum limits

* fix docker hosts for development

* add api endpoints to _api_docs

* add wallet name and id, to list and status information

* fix status_update for reverse_swaps

* chore: format with black

* more blackformatting and refactoring create_swap()

* fix variable bug

* check if swap is already refunded

* use create_task instead of ensure_future

* add mempool and boltz urls depending on DEBUG .env

* raise exception in mempool fails

* fix onchain txs, sending funds to wrong address and add a refund address for normal swaps beforehand

* add status to swaps, add sorting and data into listing

* add swap status checks, change urls to docker test setup, dynamic minimum and maximum limits

* add wallet name and id, to list and status information

* fix status_update for reverse_swaps

* chore: format with black

* use create_task instead of ensure_future

* add mempool and boltz urls depending on DEBUG .env

* fix onchain txs, sending funds to wrong address and add a refund address for normal swaps beforehand

* black formatting

* add some logging with loguru, and remove function duplication

* cleanup readme

* updates/suggestions from calle

Co-authored-by: calle <93376500+callebtc@users.noreply.github.com>

* remove unused comments

* Update API Endpoints

Co-authored-by: calle <93376500+callebtc@users.noreply.github.com>

* un-factor get_boltz_pairs

* added a explaination for the onchain tx

* remove unused template file

* rename api endpoints

* fix isort and prettier

* more verbose logging!!

* add boltz to mock_data.zip

* new mockdata

* remove comment

* better readme

* fix mempool urls

* change /refund /check /status to post requests

* first step in tests2

* add first tests

* change refund,check,status to post requests

* next try on tests

* overall code improvements

* just testing tests

* throw http exceptions in views_api

* require admincheck for refund,check,status and added fastapi documentation for those

* added more tests

* black

* many code improvements

* adding tests

* temp fix test

* fix race condition when pay_invoice fails

* test are working

* add boltz env variables

* add startup check, bugfixes, improvements

* improve on status checking

* remove check_invoice_status

* more fixes and tests

* testing testing testing

* make tests run again inside regtest

* fix bad error :O

* fix postgres boolean bug and add swap test

* Update README.md

Update README.md

Update README.md

Update README.md

* some mypy

* blacked

* the missing commit?

* fix api_docs readme link

* better refunding error catching

fix

* check swaps now also shows pending reverse swap, ui improvements, tooltips

* add backend check for boltz limits

fixup

* many improvements, startup check for swaps working, reverse needs more testing

* little last fixes

* remove unused logic

* fastapi documentation

fixup

* formatting and remove unused tests

* fix test

* fix swapstatus model

* Update lnbits/extensions/boltz/tasks.py

Co-authored-by: calle <93376500+callebtc@users.noreply.github.com>

* Update lnbits/extensions/boltz/views_api.py

Co-authored-by: calle <93376500+callebtc@users.noreply.github.com>

* balance check msg, format

* fix mypy data override

* fix swapstatus, remove can refund column

* Update lnbits/extensions/boltz/README.md

Co-authored-by: michael1011 <me@michael1011.at>

* empty lines

* fix error message when swap is not found

* remove preimage_hash from database

* fix api_docs html

fix api_docs html

* catch boltz network exceptions better

* formatting

* check for timeout on swap at get request

Co-authored-by: michael1011 <me@michael1011.at>
Co-authored-by: fusion44 <some.fusion@gmail.com>
Co-authored-by: calle <93376500+callebtc@users.noreply.github.com>

tests/mocks.py

@@ -5,7 +5,7 @@ from lnbits.settings import WALLET
 from lnbits.wallets.base import PaymentResponse, PaymentStatus, StatusResponse
 from lnbits.wallets.fake import FakeWallet
 
-from .helpers import get_random_string
+from .helpers import get_random_string, is_fake
 
 
 # generates an invoice with FakeWallet
@@ -16,12 +16,13 @@ async def generate_mock_invoice(**x):
     return invoice
 
 
-WALLET.status = AsyncMock(
-    return_value=StatusResponse(
-        "",  # no error
-        1000000,  # msats
+if is_fake:
+    WALLET.status = AsyncMock(
+        return_value=StatusResponse(
+            "",  # no error
+            1000000,  # msats
+        )
     )
-)
 
 # Note: if this line is uncommented, invoices will always be generated by FakeWallet
 # WALLET.create_invoice = generate_mock_invoice
@@ -51,26 +52,27 @@ WALLET.status = AsyncMock(
 # )
 
 
-def pay_invoice_side_effect(
-    payment_request: str, fee_limit_msat: int
-) -> PaymentResponse:
-    invoice = bolt11.decode(payment_request)
-    return PaymentResponse(
-        True,  # ok
-        invoice.payment_hash,  # checking_id (i.e. payment_hash)
-        0,  # fee_msat
-        "",  # no error
-    )
+if is_fake:
 
+    def pay_invoice_side_effect(
+        payment_request: str, fee_limit_msat: int
+    ) -> PaymentResponse:
+        invoice = bolt11.decode(payment_request)
+        return PaymentResponse(
+            True,  # ok
+            invoice.payment_hash,  # checking_id (i.e. payment_hash)
+            0,  # fee_msat
+            "",  # no error
+        )
 
-WALLET.pay_invoice = AsyncMock(side_effect=pay_invoice_side_effect)
-WALLET.get_invoice_status = AsyncMock(
-    return_value=PaymentStatus(
-        True,  # paid
+    WALLET.pay_invoice = AsyncMock(side_effect=pay_invoice_side_effect)
+    WALLET.get_invoice_status = AsyncMock(
+        return_value=PaymentStatus(
+            True,  # paid
+        )
     )
-)
-WALLET.get_payment_status = AsyncMock(
-    return_value=PaymentStatus(
-        True,  # paid
+    WALLET.get_payment_status = AsyncMock(
+        return_value=PaymentStatus(
+            True,  # paid
+        )
     )
-)