1 files changed, 75 insertions, 0 deletions
diff --git a/src-tauri/src/storage.rs b/src-tauri/src/storage.rs
new file mode 100644
index 0000000..28b1f86
--- /dev/null
+++ b/src-tauri/src/storage.rs
@@ -0,0 +1,75 @@
+use std::fs;
+use std::path::PathBuf;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Settings {
+    pub work_duration_secs: u64,
+    pub short_break_secs: u64,
+    pub long_break_secs: u64,
+    pub sessions_before_long_break: u32,
+}
+
+impl Default for Settings {
+    fn default() -> Self {
+        Self {
+            work_duration_secs: 25 * 60,
+            short_break_secs: 5 * 60,
+            long_break_secs: 15 * 60,
+            sessions_before_long_break: 4,
+        }
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Task {
+    pub id: String,
+    pub name: String,
+    pub total_sessions: u32,
+    pub remaining_sessions: u32,
+    pub completed: bool,
+    pub created_at: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct AppData {
+    pub settings: Settings,
+    pub tasks: Vec<Task>,
+    pub current_task_id: Option<String>,
+}
+
+impl Default for AppData {
+    fn default() -> Self {
+        Self {
+            settings: Settings::default(),
+            tasks: Vec::new(),
+            current_task_id: None,
+        }
+    }
+}
+
+pub fn data_path(app_data_dir: &PathBuf) -> PathBuf {
+    app_data_dir.join("data.json")
+}
+
+pub fn load(app_data_dir: &PathBuf) -> AppData {
+    let path = data_path(app_data_dir);
+    if !path.exists() {
+        return AppData::default();
+    }
+    match fs::read_to_string(&path) {
+        Ok(contents) => serde_json::from_str(&contents).unwrap_or_default(),
+        Err(_) => AppData::default(),
+    }
+}
+
+pub fn save(app_data_dir: &PathBuf, data: &AppData) -> Result<(), String> {
+    fs::create_dir_all(app_data_dir)
+        .map_err(|e| format!("Failed to create data directory: {}", e))?;
+    let path = data_path(app_data_dir);
+    let contents = serde_json::to_string_pretty(data)
+        .map_err(|e| format!("Failed to serialize data: {}", e))?;
+    fs::write(&path, contents)
+        .map_err(|e| format!("Failed to write data file: {}", e))?;
+    Ok(())
+}