From eb80a8dbb1274e813d696436ec0b45c3c5592cf8 Mon Sep 17 00:00:00 2001
From: DMcP89 <davemcpherson@wochstudios.com>
Date: Wed, 26 Jun 2024 21:00:57 -0400
Subject: [PATCH] Begining to implement Append command

---
 internal/modules/string/commands.go  |  5 +++++
 internal/modules/string/key_funcs.go | 12 ++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/internal/modules/string/commands.go b/internal/modules/string/commands.go
index 5537c60..c71254d 100644
--- a/internal/modules/string/commands.go
+++ b/internal/modules/string/commands.go
@@ -17,6 +17,7 @@ package str
 import (
 	"errors"
 	"fmt"
+
 	"github.com/echovault/echovault/internal"
 	"github.com/echovault/echovault/internal/constants"
 )
@@ -166,6 +167,10 @@ func handleSubStr(params internal.HandlerFuncParams) ([]byte, error) {
 	return []byte(fmt.Sprintf("$%d\r\n%s\r\n", len(str), str)), nil
 }
 
+func handleAppend(params internal.HandlerFuncParams) ([]byte, error) {
+	return []byte("Hello World"), nil
+}
+
 func Commands() []internal.Command {
 	return []internal.Command{
 		{
diff --git a/internal/modules/string/key_funcs.go b/internal/modules/string/key_funcs.go
index 960e784..1eff2b6 100644
--- a/internal/modules/string/key_funcs.go
+++ b/internal/modules/string/key_funcs.go
@@ -16,6 +16,7 @@ package str
 
 import (
 	"errors"
+
 	"github.com/echovault/echovault/internal"
 	"github.com/echovault/echovault/internal/constants"
 )
@@ -52,3 +53,14 @@ func subStrKeyFunc(cmd []string) (internal.KeyExtractionFuncResult, error) {
 		WriteKeys: make([]string, 0),
 	}, nil
 }
+
+func appendKeyFunc(cmd []string) (internal.KeyExtractionFuncResult, error) {
+	if len(cmd) != 4 {
+		return internal.KeyExtractionFuncResult{}, errors.New(constants.WrongArgsResponse)
+	}
+	return internal.KeyExtractionFuncResult{
+		Channels:  make([]string, 0),
+		ReadKeys:  cmd[1:2],
+		WriteKeys: make([]string, 0),
+	}, nil
+}