import express from 'express'
import os from 'os'
import path from 'path'
import cors from 'cors'
import fs from 'fs'

if (!fs.existsSync('./static')) {
    fs.mkdirSync('./static')
}

const staticPath = path.join('./static')
const port = 17705

const prev = `/${'get'}`
const app = express()
app.use(cors())

// 不存在文件与文件夹同名的问题
app.use(prev, express.static(staticPath))
app.use(prev, (req, res) => {
    const directoryPath = path.join(staticPath, req.path)
    fs.readdir(directoryPath, (err, files) => {
        if (err) {
            console.log(err, directoryPath)
            return res.status(500).json({ error: 'Unable to scan directory' })
        }
        const fileDetails = files.map((file) => {
            const filePath = path.join(directoryPath, file)
            const stats = fs.statSync(filePath)
            return {
                name: file,
                size: stats.isDirectory() ? undefined : stats.size,
                type: stats.isDirectory() ? 'directory' : 'file',
                stats: {
                    atimeMs: stats.atimeMs,
                    birthtimeMs: stats.birthtimeMs,
                    ctimeMs: stats.ctimeMs,
                    mtimeMs: stats.mtimeMs
                }
            }
        })
        res.json(fileDetails)
    })
})

app.listen(port, '::', () => {
    const interfaces = os.networkInterfaces()
    console.log(`服务器正在以下地址运行：`)
    for (const name of Object.keys(interfaces)) {
        for (const iface of interfaces[name]) {
            iface.family === 'IPv6'
                ? console.log(`http://[${iface.address}]:${port}`)
                : console.log(`http://${iface.address}:${port}`)
        }
    }
    console.log(`以下地址访问文件/文件夹：`)
    for (const name of Object.keys(interfaces)) {
        for (const iface of interfaces[name]) {
            iface.family === 'IPv6'
                ? console.log(`http://[${iface.address}]:${port}${prev}`)
                : console.log(`http://${iface.address}:${port}${prev}`)
        }
    }
})