automation_rs/src/config.rs
Dreaded_X dd4be4a2ee
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Switched from toml to yaml for configuration
2023-11-05 22:41:48 +01:00

144 lines
3.5 KiB
Rust

use std::{
fs,
net::{Ipv4Addr, SocketAddr},
time::Duration,
};
use indexmap::IndexMap;
use regex::{Captures, Regex};
use rumqttc::{MqttOptions, Transport};
use serde::{Deserialize, Deserializer};
use tracing::debug;
use crate::{
auth::OpenIDConfig,
device_manager::DeviceConfigs,
devices::PresenceConfig,
error::{ConfigParseError, MissingEnv},
};
#[derive(Debug, Deserialize)]
pub struct Config {
pub openid: OpenIDConfig,
#[serde(deserialize_with = "deserialize_mqtt_options")]
pub mqtt: MqttOptions,
#[serde(default)]
pub fullfillment: FullfillmentConfig,
pub ntfy: Option<NtfyConfig>,
pub presence: PresenceConfig,
pub devices: IndexMap<String, DeviceConfigs>,
}
#[derive(Debug, Clone, Deserialize)]
pub struct MqttConfig {
pub host: String,
pub port: u16,
pub client_name: String,
pub username: String,
pub password: String,
#[serde(default)]
pub tls: bool,
}
impl From<MqttConfig> for MqttOptions {
fn from(value: MqttConfig) -> Self {
let mut mqtt_options = MqttOptions::new(value.client_name, value.host, value.port);
mqtt_options.set_credentials(value.username, value.password);
mqtt_options.set_keep_alive(Duration::from_secs(5));
if value.tls {
mqtt_options.set_transport(Transport::tls_with_default_config());
}
mqtt_options
}
}
fn deserialize_mqtt_options<'de, D>(deserializer: D) -> Result<MqttOptions, D::Error>
where
D: Deserializer<'de>,
{
Ok(MqttOptions::from(MqttConfig::deserialize(deserializer)?))
}
#[derive(Debug, Deserialize)]
pub struct FullfillmentConfig {
#[serde(default = "default_fullfillment_ip")]
pub ip: Ipv4Addr,
#[serde(default = "default_fullfillment_port")]
pub port: u16,
}
impl From<FullfillmentConfig> for SocketAddr {
fn from(fullfillment: FullfillmentConfig) -> Self {
(fullfillment.ip, fullfillment.port).into()
}
}
impl Default for FullfillmentConfig {
fn default() -> Self {
Self {
ip: default_fullfillment_ip(),
port: default_fullfillment_port(),
}
}
}
fn default_fullfillment_ip() -> Ipv4Addr {
[0, 0, 0, 0].into()
}
fn default_fullfillment_port() -> u16 {
7878
}
#[derive(Debug, Deserialize)]
pub struct NtfyConfig {
#[serde(default = "default_ntfy_url")]
pub url: String,
pub topic: String,
}
fn default_ntfy_url() -> String {
"https://ntfy.sh".into()
}
#[derive(Debug, Clone, Deserialize)]
pub struct InfoConfig {
pub name: String,
pub room: Option<String>,
}
#[derive(Debug, Clone, Deserialize)]
pub struct MqttDeviceConfig {
pub topic: String,
}
impl Config {
pub fn parse_file(filename: &str) -> Result<Self, ConfigParseError> {
debug!("Loading config: {filename}");
let file = fs::read_to_string(filename)?;
// Substitute in environment variables
let re = Regex::new(r"\$\{(.*)\}").expect("Regex should be valid");
let mut missing = MissingEnv::new();
let file = re.replace_all(&file, |caps: &Captures| {
let key = caps.get(1).expect("Capture group should exist").as_str();
debug!("Substituting '{key}' in config");
match std::env::var(key) {
Ok(value) => value,
Err(_) => {
missing.add_missing(key);
"".into()
}
}
});
missing.has_missing()?;
let config: Config = serde_yaml::from_str(&file)?;
Ok(config)
}
}