From 18b7911c656b531fc5d7fe15245e765951f3e65e Mon Sep 17 00:00:00 2001
From: omagdy <omar.professional8777@gmail.com>
Date: Wed, 16 Jul 2025 06:42:23 +0300
Subject: feat: Finished ECHO command

---
 src/resp_commands.rs | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/resp_commands.rs

(limited to 'src/resp_commands.rs')

diff --git a/src/resp_commands.rs b/src/resp_commands.rs
new file mode 100644
index 0000000..82c0079
--- /dev/null
+++ b/src/resp_commands.rs
@@ -0,0 +1,59 @@
+use crate::resp_parser::*;
+
+pub enum RespCommands {
+    PING,
+    ECHO(String),
+    GET(String),
+    SET(String),
+    Invalid,
+}
+
+impl RespCommands {
+    pub fn execute(self) -> Vec<u8> {
+        match self {
+            RespCommands::PING => b"+PONG\r\n".to_vec(),
+            RespCommands::ECHO(echo_string) => echo_string.into_bytes(),
+            RespCommands::GET(_) => todo!(),
+            RespCommands::SET(_) => todo!(),
+            RespCommands::Invalid => todo!(),
+        }
+    }
+}
+
+impl From<RespType> for RespCommands {
+    fn from(value: RespType) -> Self {
+        match value {
+            RespType::Array(vec) if vec.len() > 1 => match (&vec[0], &vec[1]) {
+                (RespType::BulkString(command), RespType::BulkString(argument)) => {
+                    if let Ok(command) = str::from_utf8(&command) {
+                        match command {
+                            "PING" => Self::PING,
+                            "ECHO" => Self::ECHO(format!(
+                                "+{}\r\n",
+                                String::from_utf8(argument.clone()).unwrap()
+                            )),
+                            _ => Self::Invalid,
+                        }
+                    } else {
+                        Self::Invalid
+                    }
+                }
+                _ => todo!(),
+            },
+            RespType::Array(vec) => match &vec[0] {
+                RespType::BulkString(command) => {
+                    if let Ok(command) = str::from_utf8(&command) {
+                        match command {
+                            "PING" => Self::PING,
+                            _ => Self::Invalid,
+                        }
+                    } else {
+                        Self::Invalid
+                    }
+                }
+                _ => Self::Invalid,
+            },
+            _ => todo!(),
+        }
+    }
+}
-- 
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