README.md

@@ -1,4 +1,3 @@
 # duplikate
 
-Monitors a Discord server and notifies users if a duplicate link has been posted in the last week in
-the same channel.
+Duplicate Discord link monitor

flake.nix

@@ -13,46 +13,45 @@
     docker-utils.url = "github:collinarnett/docker-utils";
   };
 
-  outputs = {
-    self,
-    nixpkgs,
-    crane,
-    flake-utils,
-    docker-utils,
-    ...
-  }:
-    flake-utils.lib.eachDefaultSystem (system: let
+  outputs = { self, nixpkgs, crane, flake-utils, docker-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
         pkgs = nixpkgs.legacyPackages.${system};
 
         craneLib = crane.mkLib pkgs;
 
+        # Common arguments can be set here to avoid repeating them later
+        # Note: changes here will rebuild all dependency crates
         commonArgs = {
           src = craneLib.cleanCargoSource ./.;
           strictDeps = true;
 
-        buildInputs = with pkgs;
-          [
+          buildInputs = with pkgs;[
             openssl
             pkg-config
-          ]
-          ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [
+          ] ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [
+            # Additional darwin specific inputs can be set here
             pkgs.libiconv
           ];
         };
 
-      my-crate = craneLib.buildPackage (commonArgs
-        // {
+        my-crate = craneLib.buildPackage (commonArgs // {
           cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+
+          # Additional environment variables or build phases/hooks can be set
+          # here *without* rebuilding all dependency crates
+          # MY_CUSTOM_VAR = "some value";
         });
 
         dockerImage = pkgs.dockerTools.buildImage {
           name = "git.gmem.ca/arch/duplikate";
           tag = "latest-${system}";
           config = {
-          Cmd = ["${my-crate}/bin/duplikate"];
+            Cmd = [ "${my-crate}/bin/duplikate" ];
           };
         };
-    in {
+      in
+      {
         checks = {
           inherit my-crate;
         };
@@ -79,8 +78,13 @@
         };
 
         devShells.default = craneLib.devShell {
+          # Inherit inputs from checks.
           checks = self.checks.${system};
 
+          # Additional dev-shell environment variables can be set directly
+          # MY_CUSTOM_DEVELOPMENT_VAR = "something else";
+
+          # Extra inputs can be added here; cargo and rustc are provided by default.
           packages = with pkgs; [
             rust-analyzer
           ];

src/main.rs

@@ -3,7 +3,7 @@ use std::time::Duration;
 
 use dotenv::dotenv;
 use once_cell::sync::Lazy;
-use redis::{Commands, SetExpiry, SetOptions};
+use redis::Commands;
 use regex::Regex;
 use serenity::all::{
     ChannelId, CreateButton, CreateEmbed, CreateEmbedFooter, CreateMessage, GuildId, ReactionType,
@@ -23,11 +23,11 @@ impl EventHandler for Handler {
     async fn message_delete(
         &self,
         _ctx: Context,
-        channel_id: ChannelId,
+        _channel_id: ChannelId,
         deleted_message_id: MessageId,
-        _guild_id: Option<GuildId>,
+        guild_id: Option<GuildId>,
     ) {
-        let meta = format!("{}-{}", channel_id.get(), deleted_message_id);
+        let meta = format!("{}-{}", guild_id.unwrap(), deleted_message_id);
         let existing: Result<String, redis::RedisError> =
             self.redis.get_connection().unwrap().get(&meta);
 
@@ -67,16 +67,14 @@ impl EventHandler for Handler {
             }
         }
         if links.len() > 0 {
-            let opts = SetOptions::default()
-                .with_expiration(SetExpiry::EX(60 * 60 * 24 * 7));
             let mut exists = vec![];
-            let channel_id = msg.channel_id.get();
+            let guild_id = msg.guild_id.unwrap();
             for link in links {
                 let mut s = DefaultHasher::new();
-                format!("{}-{}", link, channel_id).hash(&mut s);
+                format!("{}-{}", link, guild_id).hash(&mut s);
                 let h = s.finish();
                 let hash = format!("{:x}", h);
-                let meta = format!("{}-{}", channel_id, msg.id.get());
+                let meta = format!("{}-{}", guild_id, msg.id.get());
                 let existing: Result<String, redis::RedisError> =
                     self.redis.get_connection().unwrap().get(&hash);
                 if existing.is_ok() {
@@ -86,24 +84,24 @@ impl EventHandler for Handler {
                         .redis
                         .get_connection()
                         .unwrap()
-                        .set_options(&hash, &msg.link(), opts.clone())
+                        .set(&hash, &msg.link())
                         .unwrap();
                     let _: () = self
                         .redis
                         .get_connection()
                         .unwrap()
-                        .set_options(meta, hash, opts)
+                        .set(meta, hash)
                         .unwrap();
                 }
             }
             if exists.len() > 0 {
                 // Links have already been posted, let's tell them
                 let desc = format!(
-                    "{} been posted in the last 7 days in this channel",
+                    "{} have already been posted!",
                     if exists.len() > 1 {
-                        "Some of these have"
+                        "Some of these"
                     } else {
-                        "One of these has"
+                        "One of these"
                     }
                 );
                 let mut fields = vec![];