use anyhow::Result;
use lazy_static::lazy_static;
use r2d2_redis::{r2d2, redis, RedisConnectionManager};

use crate::config;

pub type RedisPool = r2d2::Pool<RedisConnectionManager>;
pub type ConnectionPool = r2d2::PooledConnection<RedisConnectionManager>;

pub fn establish_connection() -> Result<redis::Connection> {
    Ok(redis::Client::open(config::CONFIG.redis_url.as_str())?.get_connection()?)
}

pub fn pool() -> Result<RedisPool> {
    Ok(r2d2::Pool::builder().build(RedisConnectionManager::new(
        config::CONFIG.redis_url.as_str(),
    )?)?)
}

lazy_static! {
    pub static ref POOL: RedisPool = pool().unwrap();
}

pub mod keys {
    pub fn post_content(id: i32) -> String {
        format!("post_content:{}", id)
    }
}