basic feature set

src/vault.rs

@@ -0,0 +1,105 @@
+use crate::error;
+use crate::state;
+use crate::colour;
+use crate::config;
+
+use std::fs;
+use std::path;
+
+pub fn new(name : String, path : path::PathBuf, config : &mut config::Config) -> Result<(), error::Error> {
+
+    fn create_all_metadata(path : &path::Path) -> Result<(), error::Error> {
+        fs::create_dir(path.join("notes"))?;
+        let state = state::State::load(path)?;
+        //state.save()?;
+
+        Ok(())
+    }
+
+    // Configuration already contains a vault by the given name.
+    if config.contains_name(&name) {
+        Err(error::Error::Generic(format!("A vault named \"{}\" already exists", name)))
+    }
+    else if config.contains_path(&path) {
+        Err(error::Error::Generic(format!("A vault at the path {:?} already exists", path)))
+    }
+    else {
+        // Folder exists and contains data.
+        if path.exists() && path.is_dir() && path.read_dir()?.next().is_some() {
+            Err(error::Error::Generic(String::from("The specified folder already exists and contains other data, please provide a path to a new or empty folder")))
+        }
+        // Folder exists and is empty, so set up the vault metadata.
+        else if path.exists() && path.is_dir() {
+            
+            // Create the vault metadata.
+            create_all_metadata(&path)?;
+
+            config.add(name, path);
+
+            Ok(())
+        }
+        // Provided path is to a file, not a directory.
+        else if path.exists() {
+            Err(error::Error::Generic(String::from("The specified path already points to a file, please provide a path to a new or empty folder")))
+        }
+        // Path does not yet exist, and should be created.
+        else {
+            fs::create_dir_all(&path)?;
+
+            // Create the vault metadata.
+            create_all_metadata(&path)?;
+
+            config.add(name, path);
+
+            Ok(())
+        }
+    }
+}
+
+pub fn connect(name : String, path : path::PathBuf, config : &mut config::Config) -> Result<(), error::Error> {
+    // Configuration already contains a vault by the given name.
+    if config.contains_name(&name) {
+        Err(error::Error::Generic(format!("A vault named \"{}\" already exists", name)))
+    }
+    else if config.contains_path(&path) {
+        Err(error::Error::Generic(format!("A vault at the path {:?} is already set up", path)))
+    }
+    else {
+        // Folder exists and contains data.
+        if path.exists() && path.is_dir()  {
+            // Vault is missing required metadata files.
+            if !path.join("notes").exists() {
+                Err(error::Error::Generic(format!("Cannot connect the vault as it is missing the {} folder", colour::file("notes"))))
+            }
+            else if !path.join("state.toml").exists() {
+                Err(error::Error::Generic(format!("Cannot connect the vault as it is missing the {} file", colour::file("state.toml"))))
+            }
+            // Required metadata exists, so the vault is connected.
+            else {
+                config.add(name, path);
+
+                Ok(())
+            }
+        }
+        // Provided path is to a file, not a directory.
+        else if path.exists() {
+            Err(error::Error::Generic(String::from("The specified path points to a file, not a folder")))
+        }
+        // Path does not yet exist.
+        else {
+            Err(error::Error::Generic(format!("The path {:?} does not exist", path)))
+        }
+    }
+}
+
+pub fn disconnect(name : &String, config : &mut config::Config) -> Result<(), error::Error> {
+    config.remove(name)?;
+    Ok(())
+}
+
+pub fn delete(name : &String, config : &mut config::Config) -> Result<(), error::Error> {
+    let path = config.remove(name)?;
+    trash::delete(path)?;
+    Ok(())
+}
+