feat: save user announcements to local storage and last fetched block

[marcomariscal]

Description

Updates to fetch and scan only the latest blocks. The latest blocks are those after the initial scan, where each subsequent scan saves the latest fetched block to local storage, allowing for appropriate updating of the scan range:

1. Initial scan --> fetch/scan blocks 1 to x
2. Next scan --> fetch/scan blocks x + 1 to latest block (y)
3. Subsequent scan --> fetch/scan blocks y + 1 to latest block etc.

Methodology:

• User announcements are updated in local storage on each fetch/scan
• The latest fetched block is updated in local storage on each fetch/scan
• The most recent announcement block data is updated in local storage on each fetch/scan to accurately show if there are no announcements fetched in the current scan
• The startBlock for the scan is appropriately updated to the latest fetched block

Other Updates:

1. Show fetching/scanning latest verbiage above the top right of the AccountReceiveTable, intentionally omitting the large scan indicator at the bottom of the table
2. Implemented a clear local storage button with auto app refresh

Comments:

• There were instances where querying the subgraph potentially hung (using goldsky, so outdated); while this may not be directly affected by this PR, it's worth noting for testing purposes

To Test:

1. Perform the initial scan using account A
2. Navigate to a different route/page using account A
3. Validate: Navigate back to the receive page to confirm: a) The initial user announcements are present b) The fetching/scanning sequence is reflected appropriately (it's fetching/scanning only the latest blocks)
4. Perform a send transaction from a different account to account A, then navigate to the receive view connected with account A; validate as in step 3
5. Test the clear local storage functionality and ensure the app refreshes correctly

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[marcomariscal]

Ran into an interesting UX loose end.. connected my wallet and did scan for received transactions.. had to sign to get them.. did so and got the list displayed.. went back to home and hit the receive tab again.. got the list immediate. Very nice...

Then closed that browser tab.. went back to the app via the deploy preview URL.. went to scan for receives, and got the list I had previously as well as a request to sign. Something might need to be cleared?

Yee, that's intentional. When the user refreshes the page, they need to sign again to scan because the keys are no longer available in memory. Sensitive data won't be cached to ensure security and privacy.

We've updated the sign-to-scan verbiage slightly for this scenario but welcome any feedback on clearer or less confusing language, and the ux in general.

[jferas]

Yee, that's intentional. When the user refreshes the page, they need to sign again to scan because the keys are no longer available in memory. Sensitive data won't be cached to ensure security and privacy.

We've updated the sign-to-scan verbiage slightly for this scenario but welcome any feedback on clearer or less confusing language, and the ux in general.

Understood.. thanks!

[github-actions[bot]]

Coverage after merging feat/last-fetched-block-usage into master will be

81.12%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
contracts-periphery/src
UmbraBatchSend.sol	100%	100%	100%	100%
UniswapWithdrawHook.sol	81.82%	100%	66.67%	83.33%	14
umbra-js/src
ethers.ts	76.27%	100%	61.11%	100%
types.ts	50%	100%	0%	100%
umbra-js/src/classes
KeyPair.ts	98.65%	96.49%	100%	100%	31–32
RandomNumber.ts	100%	100%	100%	100%
StealthKeyRegistry.ts	100%	100%	100%	100%
TxHistoryProvider.ts	77.55%	76.47%	66.67%	79.31%	11, 11, 19–20, 31, 38, 44, 53, 57, 8
Umbra.ts	75.41%	63.69%	82.93%	82.09%	105, 135–136, 157, 229–231, 315–318, 380, 394, 401–403, 405–406, 409–410, 428, 430, 432, 432, 432, 432–433, 433, 433–435, 450, 450, 450–451, 455, 458, 478, 496–498, 585, 602, 615–616, 626–627, 640, 643–644, 674–675, 751, 755, 755, 755–758, 758, 758, 758, 758, 758, 758–759, 759, 759, 759, 759, 759, 759, 759, 759, 759, 759, 761, 761, 761–762, 765, 765, 765, 765, 765–766, 769, 778, 778, 787, 790, 790, 790–792, 805, 809, 812–813, 819–821, 828, 828, 828–831, 862, 867–868, 868–869
umbra-js/src/typechain
index.ts	70.59%	100%	37.50%	100%
umbra-js/src/typechain/factories
index.ts	100%	100%	100%	100%
umbra-js/src/typechain/factories/@openzeppelin
index.ts	100%	100%	100%	100%
umbra-js/src/typechain/factories/@openzeppelin/contracts
index.ts	100%	100%	100%	100%
umbra-js/src/typechain/factories/@openzeppelin/contracts/access
Ownable__factory.ts	50%	100%	0%	66.67%	70, 76
index.ts	50%	100%	0%	100%
umbra-js/src/typechain/factories/@openzeppelin/contracts/token
index.ts	100%	100%	100%	100%
umbra-js/src/typechain/factories/@openzeppelin/contracts/token/ERC20
ERC20__factory.ts	29.03%	0%	12.50%	47.06%	310, 314, 314, 314–315, 317, 326, 326, 326, 333, 333, 333, 336, 339, 345
IERC20__factory.ts	50%	100%	0%	66.67%	201, 204
index.ts	50%	100%	0%	100%
umbra-js/src/typechain/factories/contracts
IUmbraHookReceiver__factory.ts	50%	100%	0%	66.67%	61, 67
MockHook__factory.ts	22.58%	0%	0%	41.18%	107, 111, 111, 111–112, 114, 121, 121, 121, 126, 126, 126, 129, 132, 138, 144
StealthKeyRegistry__factory.ts	22.58%	0%	0%	41.18%	202, 206, 206, 206–207, 209, 216, 216, 216, 221, 221, 221, 224, 227, 233, 239
TestToken__factory.ts	64.52%	66.67%	50%	70.59%	329–330, 348, 351, 354, 360, 366
Umbra__factory.ts	70.97%	66.67%	62.50%	76.47%	495–496, 525, 529, 532, 538
index.ts	50%	100%	0%	100%
umbra-js/src/utils
cns.ts	50%	33.33%	50%	55%	33–36, 40, 40, 40, 40, 40–41, 44–46
constants.ts	100%	100%	100%	100%
ens.ts	36.11%	25%	33.33%	40%	25–27, 35, 56–57, 57, 57–58, 63–64, 66, 70, 70, 70, 70, 70–71, 75–77
utils.ts	76.67%	68.66%	76.92%	82%	109–111, 113–115, 121, 139–140, 169, 190, 246, 253–260, 260, 260, 260, 260, 260, 260–261, 263, 294, 296–297, 306, 306, 306–307, 309, 312, 321–322, 363, 380, 380, 380, 400, 429, 431, 436, 448, 448–449, 454, 456–457, 468–472, 478, 480, 522–523, 523, 523–525, 525, 525, 536, 59–60, 779–780, 792–793, 85, 93, 93
umbra-js/test
testPrivateKeys.ts	100%	100%	100%	100%
utils.ts	100%	100%	100%	100%

[garyghayrat]

Thank you @marcomariscal !