const { app, BrowserWindow, ipcMain, dialog, shell } = require("electron");
const path = require("path");
const fs = require("fs");

// 便携版：设置用户数据目录为程序目录下
const portableDataPath = path.join(__dirname, "data");

let mainWindow;

function createWindow() {
    mainWindow = new BrowserWindow({
        width: 820,
        height: 580,
        minWidth: 720,
        minHeight: 500,
        title: "备份管理器",
        webPreferences: {
            nodeIntegration: false,
            contextIsolation: true,
            sandbox: false,
            preload: path.join(__dirname, "preload.js")
        },
        frame: false,
        backgroundColor: "#faf7f2"
    });

    mainWindow.loadFile("index.html");

    // 开发时打开DevTools
    // mainWindow.webContents.openDevTools();
}

// 确保数据目录存在
function ensureDataDir() {
    if (!fs.existsSync(portableDataPath)) {
        fs.mkdirSync(portableDataPath, { recursive: true });
    }
}

app.whenReady().then(() => {
    ensureDataDir();
    createWindow();

    app.on("activate", () => {
        if (BrowserWindow.getAllWindows().length === 0) {
            createWindow();
        }
    });
});

app.on("window-all-closed", () => {
    if (process.platform !== "darwin") {
        app.quit();
    }
});

// ============ IPC 处理 ============

// 窗口控制
ipcMain.handle("window-minimize", () => mainWindow.minimize());
ipcMain.handle("window-maximize", () => {
    if (mainWindow.isMaximized()) {
        mainWindow.unmaximize();
    } else {
        mainWindow.maximize();
    }
});
ipcMain.handle("window-close", () => mainWindow.close());

// 获取数据目录路径
ipcMain.handle("get-data-path", () => portableDataPath);

// 选择导出目录
ipcMain.handle("select-export-dir", async () => {
    const result = await dialog.showOpenDialog(mainWindow, {
        properties: ["openDirectory"],
        title: "选择导出目录"
    });
    return result.canceled ? null : result.filePaths[0];
});

// 在文件管理器中显示文件
ipcMain.handle("show-in-folder", (event, filePath) => {
    shell.showItemInFolder(filePath);
});