// main/window.js
const { app, BrowserWindow, dialog, ipcMain } = require('electron')
const path = require('path')
const fs = require('fs')
const { isProcessRunningWin } = require('./services/iosai')

function safeLoadURL(win, url, onFail) {
    if (!win || win.isDestroyed()) return
    win.loadURL(url).catch(err => { console.warn('[loadURL fail]', err); onFail?.(err) })
}

function createMainWindow({ updaterState }) {
    const win = new BrowserWindow({
        width: 1920,
        height: 1080,
        title: `YOLO（AI助手ios） v${app.getVersion()}`,
        frame: true,
        webPreferences: {
            preload: path.join(__dirname, 'preload.js'),
            contextIsolation: true,
            nodeIntegration: false,
            sandbox: true,
            webSecurity: true,
            backgroundThrottling: false,
            enableRemoteModule: false,
            offscreen: false,
            experimentalFeatures: true,
            autoplayPolicy: 'no-user-gesture-required',
            devTools: true,
        }
    })
    win.setMenu(null)
    win.maximize()

    const isProd = app.isPackaged
    const targetURL = isProd ? 'https://iosai.yolozs.com' : 'http://192.168.1.128:8080'
    console.log('[page] target:', targetURL)

    const tryNavigate = (reason = '') => {
        const ts = Date.now()
        const go = () => safeLoadURL(win, `${targetURL}?t=${ts}`)
        if (updaterState.updateInProgress) {
            console.log(`[Nav] blocked (${reason}): updating...`)
            updaterState.pendingNavs.push(go)
            return
        }
        go()
    }

    // 等待页
    const loadingFile = path.join(__dirname, '..', 'waiting.html')
    if (process.platform === 'win32') {
        if (fs.existsSync(loadingFile)) {
            win.loadFile(loadingFile).catch(() => win.loadURL('data:text/html,<h3>正在等待 iproxy.exe 启动…</h3>'))
        } else {
            win.loadURL('data:text/html,<h3>正在等待 iproxy.exe 启动…</h3>')
        }
        waitForProcessAndNavigate(win, targetURL, { exeName: 'iproxy.exe' }, tryNavigate)
    } else {
        tryNavigate('non-win-first')
    }

    // 选择文件对话框（放这也行，但我在 system.js 里也提供了封装）
    ipcMain.handle('select-apk-file', async () => {
        const r = await dialog.showOpenDialog({ title: '选择 APK 文件', filters: [{ name: 'APK', extensions: ['apk'] }], properties: ['openFile'] })
        return r.canceled ? null : r.filePaths[0]
    })
    ipcMain.handle('select-file', async () => {
        const r = await dialog.showOpenDialog({ title: '选择文件', properties: ['openFile'] })
        return r.canceled ? null : r.filePaths[0]
    })

    return win
}

function waitForProcessAndNavigate(win, targetURL, { intervalMs = 2000, timeoutMs = 999999, exeName = 'iproxy.exe' } = {}, tryNavigate) {
    let elapsed = 0
    win.setProgressBar(2, { mode: 'indeterminate' })
    const timer = setInterval(async () => {
        const ok = await isProcessRunningWin(exeName)
        if (ok) {
            clearInterval(timer)
            win.setProgressBar(-1)
            console.log(`[iproxy] running, go -> ${targetURL}`)
            tryNavigate('iproxy-ok')
            return
        }
        elapsed += intervalMs
        if (elapsed >= timeoutMs) {
            console.warn(`[iproxy] wait timeout ${timeoutMs / 1000}s`)
            win.setTitle('YOLO（AI助手ios） - 正在等待 iproxy.exe 启动…（可检查连接/杀软/权限）')
        }
    }, intervalMs)
}

module.exports = { createMainWindow, safeLoadURL }