working on todo command

src/commands/todo_cmds.rs

@@ -3,6 +3,9 @@ use regex_command_attr::command;
 use serenity::{
     client::Context,
     model::{
+        id::{
+            UserId, GuildId, ChannelId,
+        },
         channel::{
             Message,
         },
@@ -11,23 +14,9 @@ use serenity::{
 };
 
 enum TodoTarget {
-    User,
-    Channel,
-    Guild,
-}
-
-impl TodoTarget {
-    fn from_str(string: &str) -> Option<Self> {
-        match string {
-            "user" => Some(Self::User),
-
-            "channel" => Some(Self::Channel),
-
-            "server" | "guild" => Some(Self::Guild),
-
-            _ => None
-        }
-    }
+    User(UserId),
+    Channel(ChannelId),
+    Guild(GuildId),
 }
 
 enum SubCommand {
@@ -39,6 +28,63 @@ enum SubCommand {
 
 #[command]
 async fn todo_parse(ctx: &Context, msg: &Message, args: String) -> CommandResult {
+
+    let mut split = args.split(" ");
+
+    if let Some(target) = split.next() {
+        target_opt = match target {
+            "user" =>
+                TodoTarget::User(msg.author.id),
+
+            "channel" =>
+                TodoTarget::Channel(msg.channel_id),
+
+            "server" | "guild" => {
+                if let Some(gid) = msg.guild_id {
+                    TodoTarget::Guild(gid)
+                }
+                else {
+                    None
+                }
+            },
+
+            _ => {
+                 None
+            },
+        };
+
+        if let Some(target) = target_opt {
+
+            let subcommand_opt = match split.next() {
+
+                Some("add") => Some(SubCommand::Add),
+
+                Some("remove") => Some(SubCommand::Remove),
+
+                Some("clear") => Some(SubCommand::Clear),
+
+                None => Some(SubCommand::View),
+
+                Some(_unrecognised) => None,
+            };
+
+            if let Some(subcommand) = subcommand_opt {
+                todo(ctx, target, subcommand).await;
+            }
+            else {
+                let _ = msg.channel_id.say(&ctx, "Todo help").await;
+            }
+
+        }
+        else {
+            let _ = msg.channel_id.say(&ctx, "Todo help").await;
+        }
+
+    }
+    else {
+        let _ = msg.channel_id.say(&ctx, "Todo help").await;
+    }
+
     Ok(())
 }