Start to implement energy consumption backend

central_backend/src/app_config.rs

@@ -1,6 +1,24 @@
-use clap::Parser;
+use clap::{Parser, Subcommand};
 use std::path::{Path, PathBuf};
 
+/// Electrical consumption fetcher backend
+#[derive(Subcommand, Debug, Clone)]
+pub enum ConsumptionBackend {
+    /// Constant consumption value
+    Constant {
+        #[clap(long, default_value_t = 500)]
+        value: i32,
+    },
+
+    /// Generate random consumption value
+    Random {
+        #[clap(long, default_value_t = -5000)]
+        min: i32,
+        #[clap(long, default_value_t = 20000)]
+        max: i32,
+    },
+}
+
 /// Solar system central backend
 #[derive(Parser, Debug)]
 #[command(version, about, long_about = None)]
@@ -20,6 +38,10 @@ pub struct AppConfig {
     /// Server storage path
     #[arg(short, long, env, default_value = "storage")]
     storage: String,
+
+    /// Consumption backend provider
+    #[clap(subcommand)]
+    pub consumption_backend: Option<ConsumptionBackend>,
 }
 
 lazy_static::lazy_static! {