add: full initial

crates/buckets-core/src/config.rs

@@ -0,0 +1,59 @@
+use oiseau::config::{Configuration, DatabaseConfig};
+use pathbufd::PathBufD;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct Config {
+    /// The directory files are stored in (relative to cwd).
+    #[serde(default = "default_directory")]
+    pub directory: String,
+    /// Database configuration.
+    #[serde(default = "default_database")]
+    pub database: DatabaseConfig,
+}
+
+fn default_directory() -> String {
+    "buckets".to_string()
+}
+
+fn default_database() -> DatabaseConfig {
+    DatabaseConfig::default()
+}
+
+impl Configuration for Config {
+    fn db_config(&self) -> DatabaseConfig {
+        self.database.to_owned()
+    }
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        Self {
+            directory: default_directory(),
+            database: default_database(),
+        }
+    }
+}
+
+impl Config {
+    /// Read the configuration file.
+    pub fn read() -> Self {
+        toml::from_str(
+            &match std::fs::read_to_string(PathBufD::current().join("app.toml")) {
+                Ok(x) => x,
+                Err(_) => {
+                    let x = Config::default();
+
+                    std::fs::write(
+                        PathBufD::current().join("app.toml"),
+                        &toml::to_string_pretty(&x).expect("failed to serialize config"),
+                    )
+                    .expect("failed to write config");
+
+                    return x;
+                }
+            },
+        )
+        .expect("failed to deserialize config")
+    }
+}