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Merge pull request #108 from input-output-hk/erikd/genesis-address
webapi: Implement /api/genesis/address endpoint
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| packages: | ||
| cardano-explorer-db | ||
| cardano-explorer-db/test | ||
| cardano-explorer-node | ||
| cardano-explorer | ||
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113 changes: 113 additions & 0 deletions
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cardano-explorer/src/Explorer/Web/Server/GenesisAddress.hs
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| {-# LANGUAGE OverloadedStrings #-} | ||
| module Explorer.Web.Server.GenesisAddress | ||
| ( genesisAddressInfo | ||
| ) where | ||
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| import Control.Monad (when) | ||
| import Control.Monad.IO.Class (MonadIO) | ||
| import Control.Monad.Trans.Reader (ReaderT) | ||
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| import Data.Maybe (fromMaybe) | ||
| import Data.Text (Text) | ||
| import Data.Word (Word64) | ||
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| import Database.Esqueleto (InnerJoin (..), Value, (^.), (==.), | ||
| desc, from, limit, offset, on, orderBy, select, unValue, val, where_) | ||
| import Database.Persist.Sql (SqlBackend) | ||
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| import Explorer.DB (EntityField (..), txOutSpentB, txOutSpentP, txOutUnspentP) | ||
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| import Explorer.Web.ClientTypes (CAddress (..), CAddressesFilter (..), | ||
| CGenesisAddressInfo (..), mkCCoin) | ||
| import Explorer.Web.Error (ExplorerError (..)) | ||
| import Explorer.Web.Server.Types (PageNo (..), PageSize (..)) | ||
| import Explorer.Web.Server.Util (runQuery, toPageSize) | ||
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| import Servant (Handler) | ||
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| genesisAddressInfo | ||
| :: SqlBackend -> Maybe PageNo -> Maybe PageSize -> Maybe CAddressesFilter | ||
| -> Handler (Either ExplorerError [CGenesisAddressInfo]) | ||
| -- filter redeemed addresses | ||
| genesisAddressInfo backend mPage mPageSize mAddrFilter = | ||
| if unPageSize pageSize < 1 | ||
| then pure $ Left (Internal "Page size must be greater than 1.") | ||
| else genesisAddrInfo backend page pageSize addrFilter | ||
| where | ||
| pageSize = toPageSize mPageSize | ||
| page = fromMaybe (PageNo 0) mPage | ||
| addrFilter = fromMaybe AllAddresses mAddrFilter | ||
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| genesisAddrInfo | ||
| :: SqlBackend -> PageNo -> PageSize -> CAddressesFilter | ||
| -> Handler (Either ExplorerError [CGenesisAddressInfo]) | ||
| -- filter redeemed addresses | ||
| genesisAddrInfo backend page pageSize addrFilter = | ||
| runQuery backend $ | ||
| case addrFilter of | ||
| RedeemedAddresses -> Right <$> queryRedeemedGenesisAddresses page pageSize | ||
| NonRedeemedAddresses -> Right <$> queryNonRedeemedGenesisAddresses page pageSize | ||
| AllAddresses -> Right <$> queryAllGenesisAddresses page pageSize | ||
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| queryRedeemedGenesisAddresses | ||
| :: MonadIO m | ||
| => PageNo -> PageSize | ||
| -> ReaderT SqlBackend m [CGenesisAddressInfo] | ||
| queryRedeemedGenesisAddresses (PageNo page) (PageSize pageSize) = do | ||
| rows <- select . from $ \ (blk `InnerJoin` tx `InnerJoin` txOut) -> do | ||
| on (tx ^. TxId ==. txOut ^. TxOutTxId) | ||
| on (blk ^. BlockId ==. tx ^. TxBlock) | ||
| -- Only the initial genesis block has a size of 0. | ||
| where_ (blk ^. BlockSize ==. val 0) | ||
| txOutSpentP txOut | ||
| orderBy [desc (txOut ^. TxOutValue)] | ||
| when (page > 0) $ | ||
| offset (fromIntegral page) | ||
| limit (fromIntegral pageSize) | ||
| pure (txOut ^. TxOutAddress, txOut ^. TxOutValue, txOutSpentB txOut) | ||
| pure $ map mkCGenesisAddressInfo rows | ||
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| queryNonRedeemedGenesisAddresses | ||
| :: MonadIO m | ||
| => PageNo -> PageSize | ||
| -> ReaderT SqlBackend m [CGenesisAddressInfo] | ||
| queryNonRedeemedGenesisAddresses (PageNo page) (PageSize pageSize) = do | ||
| rows <- select . from $ \ (blk `InnerJoin` tx `InnerJoin` txOut) -> do | ||
| on (tx ^. TxId ==. txOut ^. TxOutTxId) | ||
| on (blk ^. BlockId ==. tx ^. TxBlock) | ||
| -- Only the initial genesis block has a size of 0. | ||
| where_ (blk ^. BlockSize ==. val 0) | ||
| txOutUnspentP txOut | ||
| orderBy [desc (txOut ^. TxOutValue)] | ||
| when (page > 0) $ | ||
| offset (fromIntegral page) | ||
| limit (fromIntegral pageSize) | ||
| pure (txOut ^. TxOutAddress, txOut ^. TxOutValue, txOutSpentB txOut) | ||
| pure $ map mkCGenesisAddressInfo rows | ||
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| queryAllGenesisAddresses | ||
| :: MonadIO m | ||
| => PageNo -> PageSize | ||
| -> ReaderT SqlBackend m [CGenesisAddressInfo] | ||
| queryAllGenesisAddresses (PageNo page) (PageSize pageSize) = do | ||
| rows <- select . from $ \ (blk `InnerJoin` tx `InnerJoin` txOut) -> do | ||
| on (tx ^. TxId ==. txOut ^. TxOutTxId) | ||
| on (blk ^. BlockId ==. tx ^. TxBlock) | ||
| -- Only the initial genesis block has a size of 0. | ||
| where_ (blk ^. BlockSize ==. val 0) | ||
| orderBy [desc (txOut ^. TxOutValue)] | ||
| when (page > 0) $ | ||
| offset (fromIntegral page) | ||
| limit (fromIntegral pageSize) | ||
| pure (txOut ^. TxOutAddress, txOut ^. TxOutValue, txOutSpentB txOut) | ||
| pure $ map mkCGenesisAddressInfo rows | ||
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| mkCGenesisAddressInfo :: (Value Text, Value Word64, Value Bool) -> CGenesisAddressInfo | ||
| mkCGenesisAddressInfo (vaddr, vvalue, vRedeemed) = | ||
| CGenesisAddressInfo | ||
| { cgaiCardanoAddress = CAddress (unValue vaddr) | ||
| , cgaiGenesisAmount = mkCCoin (fromIntegral $ unValue vvalue) | ||
| , cgaiIsRedeemed = unValue vRedeemed | ||
| } |