added functions to process the pool data and match based on the provided input

store/pools.go

@@ -1,9 +1,11 @@
 package store
 
 import (
+	"context"
 	"fmt"
 	"strings"
 
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
 	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
 )
 
@@ -31,3 +33,61 @@ func ProcessPools(pools []dataserviceapi.PoolDetails) PoolsMetadata {
 
 	return data
 }
+
+// GetPoolData retrieves and matches pool data
+// if no match is found, it fetches the API with the symbol
+func GetPoolData(ctx context.Context, db storedb.PrefixDb, input string) (*dataserviceapi.PoolDetails, error) {
+	keys := []storedb.DataTyp{
+		storedb.DATA_POOL_NAMES,
+		storedb.DATA_POOL_SYMBOLS,
+		storedb.DATA_POOL_ADDRESSES,
+	}
+	data := make(map[storedb.DataTyp]string)
+
+	for _, key := range keys {
+		value, err := db.Get(ctx, storedb.ToBytes(key))
+		if err != nil {
+			return nil, fmt.Errorf("failed to get prefix key %x: %v", storedb.ToBytes(key), err)
+		}
+		data[key] = string(value)
+	}
+
+	name, symbol, address := MatchPool(input,
+		data[storedb.DATA_POOL_NAMES],
+		data[storedb.DATA_POOL_SYMBOLS],
+		data[storedb.DATA_POOL_ADDRESSES],
+	)
+
+	if symbol == "" {
+		return nil, nil
+	}
+
+	return &dataserviceapi.PoolDetails{
+		PoolName:     string(name),
+		PoolSymbol:         string(symbol),
+		PoolContractAdrress:   string(address),
+	}, nil
+}
+
+// MatchPool finds the matching pool name, symbol and pool contract address based on the input.
+func MatchPool(input, names, symbols, addresses string) (name, symbol, address string) {
+	nameList := strings.Split(names, "\n")
+	symList := strings.Split(symbols, "\n")
+	addrList := strings.Split(addresses, "\n")
+
+	for i, sym := range symList {
+		parts := strings.SplitN(sym, ":", 2)
+
+		if input == parts[0] || strings.EqualFold(input, parts[1]) {
+			symbol = parts[1]
+			if i < len(nameList) {
+				name = strings.SplitN(nameList[i], ":", 2)[1]
+			}
+			if i < len(addrList) {
+				address = strings.SplitN(addrList[i], ":", 2)[1]
+			}
+			break
+		}
+	}
+	return
+}