first commit

src/config.rs

@@ -0,0 +1,57 @@
+use std::{env, net::SocketAddr, path::PathBuf};
+use anyhow::{Context, Result};
+use clap::Parser;
+use crate::models::{HomeAssistantSettings, RuntimeSettings};
+
+#[derive(Debug, Clone, Parser)]
+#[command(author, version, about)]
+pub struct Config {
+    #[arg(long, env = "GREE_CONTROLLER_BIND", default_value = "0.0.0.0:8787")]
+    pub bind: SocketAddr,
+    #[arg(long, env = "GREE_CONTROLLER_DATABASE", default_value = "./data/gree-controller.db")]
+    pub database: PathBuf,
+    #[arg(long, env = "GREE_CONTROLLER_APP_TOKEN", default_value = "")]
+    pub app_token: String,
+    #[arg(long, env = "GREE_CONTROLLER_SIMULATE", default_value_t = true)]
+    pub simulate: bool,
+    #[arg(long, env = "GREE_CONTROLLER_AUTO_SEED", default_value_t = true)]
+    pub auto_seed: bool,
+    #[arg(long, env = "GREE_CONTROLLER_POLL_INTERVAL_SECONDS", default_value_t = 15)]
+    pub poll_interval_seconds: u64,
+    #[arg(long, env = "GREE_CONTROLLER_ZONE_INTERVAL_SECONDS", default_value_t = 5)]
+    pub zone_interval_seconds: u64,
+    #[arg(long, env = "GREE_CONTROLLER_DISCOVERY_TIMEOUT_MS", default_value_t = 3000)]
+    pub discovery_timeout_ms: u64,
+    #[arg(long, env = "GREE_CONTROLLER_DISCOVERY_BROADCAST", default_value = "255.255.255.255:7000")]
+    pub discovery_broadcast: String,
+    #[arg(long, env = "GREE_CONTROLLER_ID", default_value = "gree-controller")]
+    pub controller_id: String,
+}
+
+impl Config {
+    pub fn load() -> Result<Self> {
+        dotenvy::dotenv().ok();
+        let config = Self::parse();
+        if let Some(parent) = config.database.parent() {
+            std::fs::create_dir_all(parent)
+                .with_context(|| format!("cannot create database directory {}", parent.display()))?;
+        }
+        Ok(config)
+    }
+
+    pub fn runtime_defaults(&self) -> RuntimeSettings {
+        RuntimeSettings {
+            controller_id: self.controller_id.clone(),
+            simulator_enabled: self.simulate,
+            poll_interval_seconds: self.poll_interval_seconds.max(2),
+            zone_interval_seconds: self.zone_interval_seconds.max(2),
+            discovery_timeout_ms: self.discovery_timeout_ms.clamp(300, 30_000),
+            discovery_broadcast: self.discovery_broadcast.clone(),
+            home_assistant: HomeAssistantSettings {
+                url: env::var("HA_URL").unwrap_or_default(),
+                token: env::var("HA_TOKEN").unwrap_or_default(),
+                default_entity_id: env::var("HA_ENTITY_ID").unwrap_or_default(),
+            },
+        }
+    }
+}