From ef4c01dfb322fc2de74abdcdd9c97331c2475943 Mon Sep 17 00:00:00 2001
From: kageru <kageru@encode.moe>
Date: Thu, 31 Oct 2019 22:35:07 +0100
Subject: [PATCH] Add !pb help/!pacbot help command

---
 src/commands/mod.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index d238e9b..c30a678 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -45,6 +45,18 @@ impl EventHandler for Handler {
     }
 }
 
+fn help(ctx: Context, msg: Message, _args: Vec<&str>) {
+    let command_triggers = COMMANDS
+        .iter()
+        .filter(|&c| !c.trigger.contains("help"))
+        .map(|c| c.trigger.clone())
+        .collect::<Vec<_>>()
+        .join(", ");
+    send(msg.channel_id,
+         &format!("Usage: `<command> <search term>`\nSupported commands: `{}`\nSource code: https://git.kageru.moe/kageru/pacbot",
+                  command_triggers), &ctx)
+}
+
 lazy_static! {
     static ref COMMANDS: Vec<Command> = {
         let mut command_list = Vec::new();
@@ -52,6 +64,8 @@ lazy_static! {
         command_list.push(Command::new("apt", apt::query_apt));
         command_list.push(Command::new("nix", nix::query_nix));
         command_list.push(Command::new("dnf", dnf::query_dnf));
+        command_list.push(Command::new("pacbot help", help));
+        command_list.push(Command::new("pb help", help));
         command_list
     };
 }