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use std::fmt::Debug;
use color_eyre::eyre::Result;
use log::*;
use poise::serenity_prelude::{GuildId, MessageId};
use redis::{AsyncCommands, Client, FromRedisValue, ToRedisArgs};
mod reactboard;
mod settings;
// these are purposefully private. see the comment below
use reactboard::REACTBOARD_KEY;
use settings::SETTINGS_KEY;
pub use reactboard::ReactBoardEntry;
pub use settings::{Settings, SettingsProperties};
#[derive(Clone, Debug)]
pub struct Storage {
pub client: Client,
}
impl Storage {
pub fn new(redis_url: &str) -> Result<Self> {
let client = Client::open(redis_url)?;
Ok(Self { client })
}
/*
these are mainly light abstractions to avoid the `let mut con`
boilerplate, as well as not require the caller to format the
strings for keys
*/
async fn get_key<T>(&self, key: &str) -> Result<T>
where
T: FromRedisValue,
{
debug!("Getting key {key}");
let mut con = self.client.get_async_connection().await?;
let res: T = con.get(key).await?;
Ok(res)
}
async fn set_key<'a>(
&self,
key: &str,
value: impl ToRedisArgs + Debug + Send + Sync + 'a,
) -> Result<()> {
debug!("Creating key {key}:\n{value:#?}");
let mut con = self.client.get_async_connection().await?;
con.set(key, value).await?;
Ok(())
}
async fn key_exists(&self, key: &str) -> Result<bool> {
debug!("Checking if key {key} exists");
let mut con = self.client.get_async_connection().await?;
let exists: u64 = con.exists(key).await?;
Ok(exists > 0)
}
async fn delete_key(&self, key: &str) -> Result<()> {
debug!("Deleting key {key}");
let mut con = self.client.get_async_connection().await?;
con.del(key).await?;
Ok(())
}
async fn expire_key(&self, key: &str, expire_seconds: usize) -> Result<()> {
debug!("Expiring key {key} in {expire_seconds}");
let mut con = self.client.get_async_connection().await?;
con.expire(key, expire_seconds).await?;
Ok(())
}
async fn add_to_index<'a>(
&self,
key: &str,
member: impl ToRedisArgs + Send + Sync + 'a,
) -> Result<()> {
let index = format!("{key}:index");
debug!("Appending index {index}");
let mut con = self.client.get_async_connection().await?;
con.sadd(index, member).await?;
Ok(())
}
async fn get_from_index<T>(&self, key: &str) -> Result<Vec<T>>
where
T: FromRedisValue,
{
let index = format!("{key}:index");
debug!("Fetching index {index}");
let mut con = self.client.get_async_connection().await?;
let mems = con.smembers(key).await?;
Ok(mems)
}
// guild settings
pub async fn create_guild_settings(&self, settings: Settings) -> Result<()> {
let key = format!("{SETTINGS_KEY}:{}", settings.guild_id);
self.set_key(&key, &settings).await?;
// adding to index since we need to look all of these up sometimes
self.add_to_index(SETTINGS_KEY, settings.guild_id.as_u64())
.await?;
Ok(())
}
pub async fn get_guild_settings(&self, guild_id: &GuildId) -> Result<Settings> {
debug!("Fetching guild settings for {guild_id}");
let key = format!("{SETTINGS_KEY}:{guild_id}");
let settings: Settings = self.get_key(&key).await?;
Ok(settings)
}
pub async fn delete_guild_settings(&self, guild_id: &GuildId) -> Result<()> {
let key = format!("{SETTINGS_KEY}:{guild_id}");
self.delete_key(&key).await?;
Ok(())
}
pub async fn guild_settings_exist(&self, guild_id: &GuildId) -> Result<bool> {
let key = format!("{SETTINGS_KEY}:{guild_id}");
self.key_exists(&key).await
}
pub async fn get_all_guild_settings(&self) -> Result<Vec<Settings>> {
debug!("Fetching all guild settings");
let guild_ids: Vec<u64> = self.get_from_index(SETTINGS_KEY).await?;
let mut guilds = vec![];
for id in guild_ids {
let settings = self.get_guild_settings(&GuildId::from(id)).await?;
guilds.push(settings);
}
Ok(guilds)
}
/// get guilds that have enabled optional commands
pub async fn get_opted_guilds(&self) -> Result<Vec<GuildId>> {
debug!("Fetching opted-in guilds");
let guilds = self.get_all_guild_settings().await?;
let opted: Vec<GuildId> = guilds
.iter()
.filter_map(|g| g.optional_commands_enabled.then_some(g.guild_id))
.collect();
Ok(opted)
}
// reactboard
pub async fn create_reactboard_entry(
&self,
guild_id: &GuildId,
entry: ReactBoardEntry,
) -> Result<()> {
let key = format!("{REACTBOARD_KEY}:{guild_id}:{}", entry.original_message_id);
self.set_key(&key, &entry).await?;
self.expire_key(&key, 30 * 24 * 60 * 60).await?; // 30 days
Ok(())
}
pub async fn get_reactboard_entry(
&self,
guild_id: &GuildId,
message_id: &MessageId,
) -> Result<ReactBoardEntry> {
debug!("Fetching reactboard entry in {guild_id}");
let key = format!("{REACTBOARD_KEY}:{guild_id}:{message_id}");
let entry: ReactBoardEntry = self.get_key(&key).await?;
Ok(entry)
}
pub async fn reactboard_entry_exists(
&self,
guild_id: &GuildId,
message_id: &MessageId,
) -> Result<bool> {
let key = format!("{REACTBOARD_KEY}:{guild_id}:{message_id}");
self.key_exists(&key).await
}
}
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