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Special page that is used as loading screen. Takes text to display and event when to switch next.

Example of usage: generation of wallet after password setup, decryption of wallet after unlocking your wallet.

Related to #68. Display:

• Tx id (copy on tap)
• Label of tx
• Blockexplorer url
• Fee
• Confirmations
• Which block was included in
• Raw bytes of tx (with copy on tap)
• Outputs (boxes in ergo) created (copy address on tap)
• Inputs (boxes in erg) spent (copy address on tap)

Widget that adds header with black background on the top of most pages. It contains:

• Name of wallet (by default is default_wallet)
• Button for menu (three vertical points)

When user taps on menu button, dropdown or sliding menu appears. The menu will eventually contains options and wallet changing button.

Develop function that allows to send bitcoin/ergo address with amount into another app.

• Create new cabal package that will hold API for indexer only.

• The package will be compiled with GHCJS, GHC and under Android platform. So, only crossplatform packages are allowed. Template Haskell is allowed but limited.

• Define API endpoints and types for:

• Getting balance of given BTC/Ergo address
• Getting transactions of given address
• Posting signed transaction into BTC/Ergo blockchain
• Versioning of API (url prefix like v1 v2)
• Abstract API for different crypto types (BTC, Ergo)

Related to #10

Slider that allows to choose miner fee with desired ETA:

• From likely 1 block
• To 25 blocks
• Add aditional description about estimation like. "Transactions that has that fee were confirmed withing 25 blocks in past several days."

The page should consists of two buttons:

• Create wallet
• Restore wallet

1. Show user generated seed phrase.
2. Ask to write down.
3. Verification: from 3-4 options select all seed words one by one.
4. Output resulted entropy as widget result.

• Description
• Features
• How to build
• How to contribute

• ErgveinError -- Error ADT
• Localization for ErgveinError
• MonadErrorPoster
• Error popup widgets

Add pagination to API endpoints that returns array.

Use:

• For API: http://hackage.haskell.org/package/pagination-0.2.1
• For DB: http://hackage.haskell.org/package/persistent-pagination-0.1.1.0

Related to #10

Make DB (using persistent + esqueleto) backbone (stub schema with migrations and connection to PostgreSQL)
Parent ticket : Backbone servant server for indexer

Use PubKeyScriptHash as key to be able to calculate balance.

Investigate:

• How mnemonic phrase for master seed is generated in Ergo.

• Which format of private keys Ergo uses.

• How private keys are derived from master seed.

Reference:
https://github.com/ergoplatform/ergo-js
https://github.com/ergoplatform/ergo-wallet

Factor out package that add localization utilities for strings in reflex-dom

• Deploy local bitcoin node (testnet or mainet)
• Connect to it with https://github.com/hexresearch/haskell-bitcoin-api
• Parse blocks with haskoin package
• Make process that scans blockchain from last scanned height.
• Actual index construction is for next ticket.

Datatype to store wallet data in a file:

• EncryptedWalletData
• Public keys with addresses
• Transactions concerning the addresses
• Settings

Make it extendable just in case

Make JSON instances to allow for encrypt/decrypt operations

Make PlatformNatives use configurable storeDir.

storeDir is going to be provided in Settings and will be in Env

Add helpers to load settings from file

• QR code
• Address display
• Amount to request
• Label for tx
• Request next address
• Button to save request
• View saved requests
• Share button to send address or invoice info

• Packages
• Nix scripts
• Basic reflex-dom app

Implement page for graphic pattern input (will be used as pincode to decrypt private keys).

Should look like this:
https://github.com/aritraroy/PatternLockView

Display:

• Form with address, amount, label, fee.
• Button to switch to camera for QR code recognition.
• Button to paste info from clipboard
• Clear button
• Pay button

1. Field to input words
2. Autocomplete suggestions
3. Validation
4. Output of widget is entropy

Words list and spec: https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki

Page with password input or simulation of modal window. The page will be used instead of #8 in desktop platform.

Module that abstracts storage of encrypted private keys in memory.

• Define API that always takes pincode/password to return decrypted keys. Like:

getKeys :: Currency -> SecretKeySelector -> Password -> ([SecretKey] -> m a) -> m a

• SecretKeySelector is some not yet designed type to define which keys we need. Typical scenarios:
  • Getting all keys to sign given transaction inputs (boxes in ergo).
  • Getting master key of currency to generate more keys
• Keys must be encrypted 99% of time.
• API to add new keys to storage.
• API to serialize storage and deserialize it.

Paying invocies (e.x. from bitpay) according to https://github.com/bitcoin/bips/blob/master/bip-0070.mediawiki

Widget that connects to camera, draws additional overlay to center QR code, returns recognized QR code.

Page where password are set, including double check field and "view password" toggle.

Implement server package for indexer:

• Make stub endpoints for API
• Make DB (using persistent + esqueleto) backbone (stub schema with migrations and connection to PostgreSQL)
• Assemble into server exectutable.

Actual implementation of logic is postponed for the next step.

Connect Java API for system back button to the new reflex-dom-retractable library

https://medium.com/grinswap/first-grin-atomic-swap-a16b4cc19196

Integrate functions from #3 to the seed page in frontend.

Implement helper monad for reflex-dom that allows to define workflow of widgets with saving history and states of widgets.

Additional important features are needed:

• A way to clear stack of history
• Mark widget to not store it in history

Display in and out transactions in list with date and amounts. Make redirect to page with tx additional information (id, rawbytes, etc).

Make transition from seed generation (and check) widget to password setup.

Languages: English, Russian

We need that library in Android platform to use haskoin-core.

Title says it all

Parent ticket : Backbone servant server for indexer

Default page that is visible when you create, restore or unlock your wallet.

Displays:

• List of currencies
• Their total balances (confirmed + unconfirmed)
• State of sync (days behind head)