Add multi-theme system with random theme selection on app startup

src-tauri/.gitignore

@@ -0,0 +1,7 @@
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+
+# Generated by Tauri
+# will have schema files for capabilities auto-completion
+/gen/schemas

src-tauri/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "countdown"
+version = "0.1.0"
+description = "A Countdown app"
+authors = ["sangge"]
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+# The `_lib` suffix may seem redundant but it is necessary
+# to make the lib name unique and wouldn't conflict with the bin name.
+# This seems to be only an issue on Windows, see https://github.com/rust-lang/cargo/issues/8519
+name = "countdown_lib"
+crate-type = ["staticlib", "cdylib", "rlib"]
+
+[build-dependencies]
+tauri-build = { version = "2", features = [] }
+
+[dependencies]
+rusqlite = { version = "0.33.0", features = ["bundled"] }
+tauri = { version = "2", features = [] }
+tauri-plugin-opener = "2"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+chrono = "0.4.39"

src-tauri/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    tauri_build::build()
+}

src-tauri/capabilities/default.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Capability for the main window",
+  "windows": ["main"],
+  "permissions": [
+    "core:default",
+    "opener:default"
+  ]
+}

src-tauri/src/lib.rs

@@ -0,0 +1,174 @@
+use chrono::{Local, NaiveDate};
+use rusqlite::{Connection, Result};
+use serde::Serialize;
+use std::fs;
+use tauri::Manager;
+
+fn init_database(app: &tauri::App) -> Result<(), Box<dyn std::error::Error>> {
+    // 获取应用数据目录
+    let app_dir = app.path().app_data_dir()?;
+
+    // 确保目录存在
+    fs::create_dir_all(&app_dir)?;
+
+    // 构建数据库文件路径
+    let db_path = app_dir.join("anniversaries.db");
+
+    // 打开数据库连接
+    let conn = Connection::open(db_path)?;
+
+    // 创建表
+    conn.execute(
+        "CREATE TABLE IF NOT EXISTS anniversaries (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            title TEXT NOT NULL,
+            start_date TEXT NOT NULL,
+            created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+        )",
+        [],
+    )?;
+
+    Ok(())
+}
+
+#[derive(Serialize)]
+struct Anniversary {
+    id: i32,
+    title: String,
+    start_date: String,
+    days: i64,
+}
+#[tauri::command]
+async fn get_anniversaries(app_handle: tauri::AppHandle) -> Result<Vec<Anniversary>, String> {
+    // 返回主页数据
+    let app_dir = app_handle
+        .path()
+        .app_data_dir()
+        .map_err(|e| e.to_string())?;
+    let db_path = app_dir.join("anniversaries.db");
+    let conn = Connection::open(db_path).map_err(|e| e.to_string())?;
+
+    let mut stmt = conn
+        .prepare("SELECT id, title, start_date FROM anniversaries ORDER BY created_at DESC")
+        .map_err(|e| e.to_string())?;
+
+    let today = Local::now().date_naive();
+
+    let anniversaries = stmt
+        .query_map([], |row| {
+            let id: i32 = row.get(0)?;
+            let title: String = row.get(1)?;
+            let start_date: String = row.get(2)?;
+
+            // 计算天数
+            let start = NaiveDate::parse_from_str(&start_date, "%Y-%m-%d")
+                .map_err(|e| rusqlite::Error::InvalidParameterName(e.to_string()))?;
+            let days = (today - start).num_days();
+
+            Ok(Anniversary {
+                id,
+                title,
+                start_date,
+                days,
+            })
+        })
+        .map_err(|e| e.to_string())?;
+
+    let result: Result<Vec<_>, _> = anniversaries.collect();
+    result.map_err(|e| e.to_string())
+}
+
+#[tauri::command]
+async fn get_anniversary_by_id(
+    app_handle: tauri::AppHandle,
+    id: i32,
+) -> Result<Anniversary, String> {
+    // 返回详情页数据
+    let app_dir = app_handle
+        .path()
+        .app_data_dir()
+        .map_err(|e| e.to_string())?;
+    let db_path = app_dir.join("anniversaries.db");
+    let conn = Connection::open(db_path).map_err(|e| e.to_string())?;
+    let mut stmt = conn
+        .prepare("SELECT title, start_date FROM anniversaries WHERE id = ?")
+        .map_err(|e| e.to_string())?;
+
+    let today = Local::now().date_naive();
+
+    let result = stmt
+        .query_row([id], |row| {
+            let title: String = row.get(0)?;
+            let start_date: String = row.get(1)?;
+
+            // 计算天数
+            let start = NaiveDate::parse_from_str(&start_date, "%Y-%m-%d")
+                .map_err(|e| rusqlite::Error::InvalidParameterName(e.to_string()))?;
+            let days = (today - start).num_days();
+
+            Ok(Anniversary {
+                id,
+                title,
+                start_date,
+                days,
+            })
+        })
+        .map_err(|e| e.to_string())?;
+
+    Ok(result)
+}
+
+#[tauri::command]
+async fn delete_anniversary(app_handle: tauri::AppHandle, id: i64) -> Result<(), String> {
+    // 详情页删除
+    let app_dir = app_handle
+        .path()
+        .app_data_dir()
+        .map_err(|e| e.to_string())?;
+    let db_path = app_dir.join("anniversaries.db");
+    let conn = Connection::open(db_path).map_err(|e| e.to_string())?;
+    conn.execute("DELETE FROM anniversaries WHERE id = ?", [id])
+        .map_err(|e| e.to_string())?;
+
+    Ok(())
+}
+
+#[tauri::command]
+async fn add_anniversary(
+    app_handle: tauri::AppHandle,
+    title: String,
+    start_date: String,
+) -> Result<(), String> {
+    // 主页添加
+    let app_dir = app_handle
+        .path()
+        .app_data_dir()
+        .map_err(|e| e.to_string())?;
+    let db_path = app_dir.join("anniversaries.db");
+    let conn = Connection::open(db_path).map_err(|e| e.to_string())?;
+    conn.execute(
+        "INSERT INTO anniversaries (title, start_date) VALUES (?1, ?2)",
+        [&title, &start_date],
+    )
+    .map_err(|e| e.to_string())?;
+
+    Ok(())
+}
+
+#[cfg_attr(mobile, tauri::mobile_entry_point)]
+pub fn run() {
+    tauri::Builder::default()
+        .plugin(tauri_plugin_opener::init())
+        .setup(|app| {
+            init_database(app).expect("failed to initialize database");
+            Ok(())
+        })
+        .invoke_handler(tauri::generate_handler![
+            get_anniversaries,
+            get_anniversary_by_id,
+            add_anniversary,
+            delete_anniversary,
+        ])
+        .run(tauri::generate_context!())
+        .expect("error while running tauri application");
+}

src-tauri/src/main.rs

@@ -0,0 +1,6 @@
+// Prevents additional console window on Windows in release, DO NOT REMOVE!!
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    countdown_lib::run()
+}

src-tauri/tauri.conf.json

@@ -0,0 +1,36 @@
+{
+  "$schema": "https://schema.tauri.app/config/2",
+  "productName": "countdown",
+  "version": "0.1.0",
+  "identifier": "com.countdown.app",
+  "build": {
+    "beforeDevCommand": "pnpm dev",
+    "devUrl": "http://localhost:1420",
+    "beforeBuildCommand": "pnpm build",
+    "frontendDist": "../dist"
+  },
+  "app": {
+    "windows": [
+      {
+        "title": "countdown",
+        "width": 800,
+        "height": 600
+      }
+    ],
+    "security": {
+      "csp": "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'"
+    }
+  },
+  "bundle": {
+    "active": true,
+    "targets": ["deb", "rpm", "appimage", "nsis", "msi", "dmg", "app"],
+    "icon": [
+      "icons/32x32.png",
+      "icons/128x128.png",
+      "icons/128x128@2x.png",
+      "icons/icon.png",
+      "icons/icon.icns",
+      "icons/icon.ico"
+    ]
+  }
+}