const {app, BrowserWindow} = require('electron')
const path = require('path')
const {uIOhook} = require('uiohook-napi')
const electron = require('electron')

const remote = require('@electron/remote/main')
// 初始化
remote.initialize()

// modify your existing createWindow() function
const createWindow = () => {
    const area = electron.screen.getPrimaryDisplay().workAreaSize
    console.log(process.platform);
    let cusX = area.width
    let cusY = area.height
    // 当不是mac系统时，屏幕位置使用下面的计算方式，默认为mac系统的计算方式
    if (process.platform && process.platform !== 'darwin') {
        cusX = (area.width - area.width * 0.5)
        cusY = (area.height - area.height * 0.5)
    }
    const win = new BrowserWindow({
        x: cusX,
        y: cusY,
        width: area.width * 0.5,
        height: area.height * 0.5,
        frame: false, // 无边框
        transparent: true, // 透明度
        alwaysOnTop: true, // 窗口置顶
        resizable: false, // 是否可以改变大小
        webPreferences: {
            preload: path.join(__dirname, 'preload.js'),
            nodeIntegration: true, // 是否使用nodejs 的特性
            contextIsolation: false
        },
        // 禁用窗口阴影，否则在mac系统选中时会有图片的阴影
        hasShadow: false
    })
    // 允许窗口的 webcontents 访问
    remote.enable(win.webContents)
    // win.setIgnoreMouseEvents(true) // 设置鼠标忽略事件
    // 处理mac系统下，在全屏模式下，应用无法置顶的问题。
    if (process.platform === 'darwin') {
        app.dock.show()
        win.setAlwaysOnTop(true, "floating", 1);
        win.setVisibleOnAllWorkspaces(true, {visibleOnFullScreen: true});
        win.setFullScreenable(false);
    }
    // win.webContents.openDevTools()
    win.loadFile('index.html')

    listenerKeyboardEvent(win)
}


app.whenReady().then(() => {
    createWindow()
    app.on('activate', () => {
        if (BrowserWindow.getAllWindows().length === 0) createWindow()
    })
})

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

// 监听全局鼠标事件，并执行javascript脚本
const listenerKeyboardEvent = (win) => {
    uIOhook.on('keydown', (e) => {
        // 按下
        const type = 1
        const js = `if(window.onGlobalKeyBoard){window.onGlobalKeyBoard(${type},${e.keycode})}`;
        win.webContents.executeJavaScript(js)
    })

    uIOhook.on('keyup', (e) => {
        // 抬起
        const type = 2
        win.webContents.executeJavaScript(`if(window.onGlobalKeyBoard){window.onGlobalKeyBoard(${type}, ${e.keycode})}`)
    })
    uIOhook.start()
}