feature: Create command system to handle actions

.idea/vcs.xml

@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GitSharedSettings">
+    <option name="FORCE_PUSH_PROHIBITED_PATTERNS">
+      <list />
+    </option>
+  </component>
   <component name="VcsDirectoryMappings">
     <mapping directory="" vcs="Git" />
   </component>

src/config.rs

@@ -1,4 +1,4 @@
-use clap::{Parser, ValueEnum};
+use clap::{Parser, Subcommand, ValueEnum};
 use serde::{Deserialize, Serialize};
 use std::fmt;
 use std::path::PathBuf;
@@ -57,9 +57,30 @@ impl Into<LevelFilter> for VerbosityLevel {
     }
 }
 
+#[derive(Debug, Subcommand)]
+#[clap(rename_all = "snake_case")]
+pub enum Command {
+    /// Load task into the database from [path]
+    LoadTasks{
+        /// Path to the file
+        path: PathBuf,
+    },
+    #[clap(skip)]
+    None,
+}
+
+impl Default for Command {
+    fn default() -> Self {
+        Command::None
+    }
+}
+
 #[derive(Debug, Parser, Serialize, Deserialize)]
 pub struct Config {
-    path: PathBuf,
+    #[command(subcommand)]
+    #[serde(skip)]
+    pub command: Command,
+
     #[arg(
         long,
         short = 'v',
@@ -71,9 +92,6 @@ pub struct Config {
 }
 
 impl Config {
-    pub fn path(&self) -> &PathBuf {
-        &self.path
-    }
 
     pub fn log_level(&self) -> LevelFilter {
         self.log_level.clone().into()

src/main.rs

@@ -1,5 +1,5 @@
-use clap::Parser;
-use readwise_bulk_upload::config::Config;
+use clap::{CommandFactory, Parser};
+use readwise_bulk_upload::config::{Command, Config};
 use readwise_bulk_upload::readwise::DocumentPayload;
 use readwise_bulk_upload::sql::TaskManager;
 use readwise_bulk_upload::{Error, Result};
@@ -9,8 +9,9 @@ use figment::{Figment, providers::{Serialized, Env}};
 
 #[tokio::main]
 async fn main() -> Result<()> {
+    let cli = Config::parse();
     let args: Config = Figment::new()
-        .merge(Serialized::defaults(Config::parse()))
+        .merge(Serialized::defaults(&cli))
         .merge(Env::prefixed("APP_"))
         .extract()?;
 
@@ -18,18 +19,32 @@ async fn main() -> Result<()> {
         .with_max_level(args.log_level())
         .init();
 
-    let file = File::open(args.path()).map_err(|_| {
-        Error::Runtime(format!(
-            r#"The file "{}" could not be open"#,
-            args.path().display()
-        ))
-    })?;
-
-    let documents: Vec<DocumentPayload> = serde_json::from_reader(file)?;
-
-    let task_manager = TaskManager::new().await?;
-
-    task_manager.load_tasks(documents).await?;
+    run(&cli.command).await?;
+
+    Ok(())
+}
+
+async fn run(command: &Command) -> Result<()> {
+
+    match command {
+        Command::LoadTasks { path } => {
+            let file = File::open(path).map_err(|_| {
+                Error::Runtime(format!(
+                    r#"The file "{}" could not be open"#,
+                    path.display()
+                ))
+            })?;
+
+            let documents: Vec<DocumentPayload> = serde_json::from_reader(file)?;
+
+            let task_manager = TaskManager::new().await?;
+
+            task_manager.load_tasks(documents).await?;
+        }
+        Command::None => {
+            Config::command().print_help()?;
+        }
+    }
 
     Ok(())
 }