Prefix configuration

migrations/2018-02-11-111637_create_discord_prefix_list/down.sql

@@ -0,0 +1 @@
+DROP TABLE prefixes

migrations/2018-02-11-111637_create_discord_prefix_list/up.sql

@@ -0,0 +1,4 @@
+CREATE TABLE prefixes (
+	id BIGINT PRIMARY KEY,
+	prefix VARCHAR NOT NULL
+)

src/commands/feed.rs

@@ -4,7 +4,6 @@ use serenity::model::*;
 
 use ::diesel;
 use ::diesel::prelude::*;
-use ::diesel::pg::PgConnection;
 use ::diesel::result::DatabaseErrorKind;
 
 use ::serde_json;
@@ -12,11 +11,13 @@ use ::serde_json::Value;
 
 use ::reqwest;
 
-use ::std::{env, thread};
+use ::std::thread;
 
 use failure;
 use failure::Error;
 
+use super::establish_connection;
+
 pub fn territory_livefeed() {
 	use models::LivefeedListener;
 	use schema::livefeedlisteners::dsl::*;
@@ -179,10 +180,3 @@ pub fn wc_unwarfeed(msg: &Message) -> Result<(), Error> {
 
 	Ok(())
 }
-
-fn establish_connection() -> PgConnection {
-    let database_url = env::var("DATABASE_URL")
-        .expect("DATABASE_URL must be set");
-    PgConnection::establish(&database_url)
-        .expect(&format!("Error connecting to {}", database_url))
-}

src/commands/mod.rs

@@ -8,9 +8,15 @@ use ::reqwest;
 use ::serde_json;
 use ::serde_json::Value;
 
+use diesel;
+use diesel::pg::PgConnection;
+use diesel::prelude::*;
+
 use failure;
 use failure::Error;
 
+use std::env;
+
 pub mod player;
 pub mod guild;
 pub mod feed;
@@ -19,6 +25,29 @@ pub use player::*;
 pub use guild::*;
 pub use feed::{wc_livefeed, wc_unlivefeed, wc_warfeed, wc_unwarfeed};
 
+pub fn wc_prefix(command: &str, msg: &Message) -> Result<(), Error> {
+	use models::PrefixConfig;
+	use schema::prefixes::dsl::*;
+
+	let connection = establish_connection();
+
+	let new_prefix = &command[7..].to_owned();
+
+	diesel::insert_into(prefixes)
+        .values(&PrefixConfig {
+			id: msg.guild_id().unwrap().0 as i64,
+			prefix: new_prefix.clone()
+		})
+		.on_conflict(id)
+		.do_update()
+		.set(prefix.eq(new_prefix))
+		.execute(&connection)?;
+
+	msg.channel_id.say(format!("Prefix is now {:?}", new_prefix))?;
+
+	Ok(())
+}
+
 pub fn wc_status(msg: &Message) -> Result<(), Error> {
 	let resp = reqwest::get("https://api.wynncraft.com/public_api.php?action=onlinePlayersSum")?.text().unwrap();
 
@@ -205,4 +234,11 @@ pub fn wc_shout(command: &str, msg: &Message) -> Result<(), Error> {
 	}
 	msg.channel_id.say("Success!")?;
 	Ok(())
+}
+
+pub fn establish_connection() -> PgConnection {
+    let database_url = env::var("DATABASE_URL")
+        .expect("DATABASE_URL must be set");
+    PgConnection::establish(&database_url)
+        .expect(&format!("Error connecting to {}", database_url))
 }

src/main.rs

@@ -10,6 +10,7 @@ extern crate serde_json;
 
 #[macro_use]
 extern crate diesel;
+use diesel::prelude::*;
 
 #[macro_use]
 extern crate failure;
@@ -36,6 +37,7 @@ use std::thread;
 
 mod models;
 mod schema;
+use schema::prefixes;
 mod commands;
 use commands::*;
 
@@ -84,7 +86,19 @@ impl EventHandler for Handler {
     // Event handlers are dispatched through multi-threading, and so multiple
     // of a single event can be dispatched simultaneously.
     fn on_message(&self, _: Context, msg: Message) {
-		if let Err(error) = self.process_message(&msg) {
+		let cfg = Config::generate().unwrap();
+		let prefix = cfg.prefix;
+		let connection = commands::establish_connection();
+
+		let prefix = prefixes::table
+			.select(prefixes::prefix)
+			.filter(prefixes::id.eq(msg.guild_id().unwrap_or(GuildId(0)).0 as i64))
+			.load::<String>(&connection)
+			.expect("Error loading prefix").get(0)
+			.map(|x| x.to_owned())
+			.unwrap_or(prefix);
+
+		if let Err(error) = self.process_message(&msg, &prefix) {
 			//eprintln!("Error: {}", error);
 			let _ = msg.channel_id.say(format!("Error: {}", error));
 			for cause in error.causes().skip(1) {
@@ -92,8 +106,7 @@ impl EventHandler for Handler {
 				let _ = msg.channel_id.say(format!("caused by: {}", cause));
 			}
 		}
-		let cfg = Config::generate().unwrap();
+
-		let prefix = cfg.prefix;
 		if msg.content.starts_with(&prefix) {
 			let command = &msg.content[prefix.len()..];
 			// log
@@ -117,10 +130,7 @@ impl EventHandler for Handler {
 }
 
 impl Handler {
-	fn process_message(&self, msg: &Message) -> Result<(), Error> {
+	fn process_message(&self, msg: &Message, prefix: &str) -> Result<(), Error> {
-		let cfg = Config::generate()?;
-		let prefix = cfg.prefix;
-
 		if msg.content == "<@392763365409292298> has big gay" {
 			let _ = msg.channel_id.broadcast_typing();
 			thread::sleep_ms(5000);
@@ -165,6 +175,8 @@ impl Handler {
 			} else {
 				"<@210743594061922306>".parse::<User>().unwrap().dm(|f| f.content(format!("{} tried to shout {:?}", msg.author, &command[6..]))).unwrap();
 			}
+		} else if command.starts_with("prefix ") {
+			wc_prefix(command, msg)?;
 		} else {
 			bail!(ResponseError::UnknownCommand { name: command.to_owned() });
 		}

src/models.rs

@@ -10,4 +10,11 @@ pub struct LivefeedListener {
 #[table_name="warfeedlisteners"]
 pub struct WarfeedListener {
     pub id: i64
+}
+
+#[derive(Queryable, Insertable)]
+#[table_name="prefixes"]
+pub struct PrefixConfig {
+    pub id: i64,
+	pub prefix: String
 }

src/schema.rs

@@ -4,6 +4,13 @@ table! {
     }
 }
 
+table! {
+    prefixes (id) {
+        id -> Int8,
+        prefix -> Varchar,
+    }
+}
+
 table! {
     warfeedlisteners (id) {
         id -> Int8,
@@ -12,5 +19,6 @@ table! {
 
 allow_tables_to_appear_in_same_query!(
     livefeedlisteners,
+    prefixes,
     warfeedlisteners,
 );