lightning network

[tiero]

Overview

This propose a change to the UI/UX as specified in #255 and adds Lightning Network payments via Boltz submarine swaps. NOTICE: this is just a PoC, need serious work and cleanup to reach production.

How to test

Assuming you restore/create a wallet, pick password ciaociao you should be able to

0. Select Testnet
1. Click on Receive
2. Select Liquid Bitcoin
3. Select Lightning Network
4. Enter an amount > 0.0005
5. Pay an invoice with HTLC.me in
6. After invoice paid, Marina will broadcast Liquid tx and after a minute you will have the new LBTC deposited

   TODOs

• [x] Show Modal to pick Liquid or Lightning when sending/receiving L-BTC
• [ ] Fix the the Modal be a Bottom Sheet Modal as per design
• [ ] Reverse Submarine flow: Use Redux to persist state and make of use of two separated pages
  • [ ] Enter Amount page
  • [ ] Show Invoice/Success/Failure page
  • [ ] Prompt user password to Unlock and Sign the Boltz claim transaction
• [ ] Re-implement constructClaimTransaction with Psbt class in order to exploit LDK's identity (now it extracts keys, drop this)
• [ ] Make correct transaction size estimation based on the HTLC swap script

[tiero]

For the Submarine flow instead, I guess the new UX should be:

1. Click on Send
2. Select Liquid Bitcoin
3. Select Lightning Network
4. Enter an amount user want to withdraw > 0.0005
5. Paste the LN invoice inside the next screen in marina
6. Send the request to boltx which will answer with the lockup address
7. Send L-BTC funds to that

After funds are locked onchain, Boltz will pay the invoice on our behalf

[bordalix]

4. Enter an amount user want to withdraw > 0.0005

I believe there's also a max amount of 0.1 BTC on Boltz.

Do you confirm?

[tiero]

4. Enter an amount user want to withdraw > 0.0005

I believe there's also a max amount of 0.1 BTC on Boltz.

Do you confirm?

Correct! We should shot those limits in the UI eventually/show errors