Add setSubmissionChannel command

.gitignore

@@ -9,4 +9,5 @@ Cargo.lock
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
-.env
+.env
+guilds.json

src/commands/owner.rs

@@ -2,8 +2,55 @@ use serenity::framework::standard::{macros::command, CommandResult};
 use serenity::model::prelude::*;
 use serenity::prelude::*;
 
+use serde_json::Map;
+use serde_json::Value;
+use serde_json::json;
+use std::fs::File;
+use std::fs::OpenOptions;
+use std::io::Read;
+use std::io::Write;
+use std::path::Path;
+use std::process::Command;
+
 use crate::ShardManagerContainer;
 
+const GUILD_DATA_PATH: &str = "guilds.json";
+
+fn get_guild_data() -> Map<String, Value> {
+    let guild_data_json = match File::open(GUILD_DATA_PATH) {
+        Ok(mut file) => {
+            let mut json = String::new();
+            file.read_to_string(&mut json).unwrap();
+            json
+        }
+        Err(ref e) if e.kind() == std::io::ErrorKind::NotFound => {
+            let mut file = File::create(GUILD_DATA_PATH).unwrap();
+            file.write_all(b"{}").unwrap();
+            file.flush().unwrap();
+            String::from("{}")
+        }
+        Err(_) => panic!("Failed to open guild data file"),
+    };
+    let mut submission_data: Value = serde_json::from_str(&guild_data_json).unwrap();
+    submission_data.as_object_mut().unwrap().clone()
+}
+
+fn set_guild_data(guild_data: Map<String, Value>) {
+    let guild_data: Value = guild_data.into();
+    let mut guild_data_file = OpenOptions::new()
+        .write(true)
+        .truncate(true)
+        .open(GUILD_DATA_PATH)
+        .unwrap();
+    guild_data_file
+        .write_all(
+            serde_json::to_string_pretty(&guild_data)
+                .unwrap()
+                .as_bytes(),
+        )
+        .unwrap();
+}
+
 #[command]
 #[owners_only]
 async fn sleep(ctx: &Context, msg: &Message) -> CommandResult {
@@ -21,3 +68,23 @@ async fn sleep(ctx: &Context, msg: &Message) -> CommandResult {
 
     Ok(())
 }
+
+#[command]
+#[owners_only]
+#[allow(non_snake_case)]
+async fn setSubmissionChannel(ctx: &Context, msg: &Message) -> CommandResult {
+    let mut guild_data = get_guild_data();
+    let guild = msg.guild_id.unwrap().as_u64().to_string();
+    let channel = msg.channel_id.as_u64().to_string();
+    if guild_data.contains_key(&guild) {
+        guild_data[&guild].as_object_mut().unwrap()["submissionChannel"] = channel.into();
+    } else {
+        guild_data.insert(guild, json!({
+            "submissionChannel": channel
+        }));
+    }
+    set_guild_data(guild_data);
+    // TODO: Add guild name in message
+    msg.reply(&ctx.http, format!("Submission channel set to <#{}>.", msg.channel_id)).await?;
+    Ok(())
+}

src/main.rs

@@ -55,7 +55,8 @@ impl EventHandler for Handler {
     images,
     imageDelete,
     help,
-    sleep
+    sleep,
+    setSubmissionChannel
 )]
 struct General;