const os = require('os')
const bytes = require('bytes')
const sharp = require('sharp')
const morgan = require('morgan')
const express = require('express')
const PDFDocument = require('pdfkit')
const axios = require("axios")
const FormData = require("form-data")
const tfjs = require('@tensorflow/tfjs-node')
const nsfwjs = require('nsfwjs')
const jpegjs = require('jpeg-js')
const fileType = require("file-type")
//const Stress = require('./lib/ddos.js');
//const { BingChat } = (await import("bing-chat")).default
const { acytoo, chatgpt_4 } = require("./lib/chatgpt.js")
const { sss_instagram, gramvio } = require("./lib/instagram.js")
const { allToJpg } = require("./lib/convertFormat.js")
const apikey = "Kyouka"

const app = express()
app.set('json spaces', 4)
app.use(morgan('dev'))
app.use(express.json({ limit: "500mb" }))
app.use(express.urlencoded({ limit: '500mb', extended: true }))
app.use((req, res, next) => {
  load_model(),
  next()
})

app.all('/', (req, res) => {
	const status = {}
	const used = process.memoryUsage()
	for (let key in used) status[key] = formatSize(used[key])
	
	const totalmem = os.totalmem()
	const freemem = os.freemem()
	status.memoryUsage = `${formatSize(totalmem - freemem)} / ${formatSize(totalmem)}`
	
	res.json({
		creator: "@SadTeams",
		message: 'Hello World!!',
		uptime: new Date(process.uptime() * 1000).toUTCString().split(' ')[4],
		status
	})
})

app.post('/imagetopdf', async (req, res) => {
	try {
		console.log(req.body)
		const { images } = req.body
		if (!images) return res.json({ success: false, message: 'Required an array image url' })
		
		const buffer = await toPDF(images)
		res.setHeader('Content-Disposition', `attachment; filename=${Math.random().toString(36).slice(2)}.pdf`)
		res.setHeader('Content-Type', 'application/pdf')
		res.setHeader('Content-Length', buffer.byteLength)
		res.send(buffer)
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})

app.get('/fetch', async (req, res) => {
	try {
		if (!req.query.url) return res.json({ message: 'Required an url' })
		let json = await axios.get(req.query.url)
		res.json(json.data)
	} catch (e) {
		res.send(e)
	}
})

app.post('/api/chatgpt', async (req, res) => {
	try {
		console.log(req.body)
		const { prompt, model, status } = req.body
		if (!prompt) return res.json({ success: false, message: 'Required an prompt text!' })
        if (!model) return res.json({ success: false, message: 'Required an model version!' })
        if (!status) return res.json({ success: false, message: 'Required an prompt text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
        if(model == "gpt-4") {
          const response = await axios.request({
            method: "GET",
            url: "https://aemt.me/gpt4?text=" + prompt
          })
          res.json({
            status: "ok",
            result: response.data.result
          })
        } else if(model == "gpt-3.5") {
          const response = await acytoo(prompt, "gpt-4")
          res.json({
            status: "ok",
            result: response
          })
        } else if(model == "gpt-3") {
          const response = await acytoo(prompt, "gpt-3.5-turbo")
          res.json({
            status: "ok",
            result: response
          })
        }
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
app.post('/api/chatgpt2', async (req, res) => {
	try {
		console.log(req.body)
		const { data, prompt, status } = req.body
        if (!data) return res.json({ success: false, message: 'Required an data text!' })
		if (!prompt) return res.json({ success: false, message: 'Required an prompt text!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
		const response = await axios.request({
          method: "GET",
          url: `https://aemt.me/prompt/gpt?prompt=${data}&text=${prompt}`
        })
        res.json({
          status: "ok",
          result: response.data.result
        })
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
app.post('/api/toanime', async (req, res) => {
	try {
		console.log(req.body)
		const { url, status } = req.body
        if (!url) return res.json({ success: false, message: 'Required an url!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
		const response = await axios.request({
          method: "GET",
          url: "https://aemt.me/toanime?url=" + url
        })
        const image = await axios.request({
          method: "GET", 
          url: response.data.url.img_crop_single,
          responseType: "arraybuffer" 
        })
        res.setHeader('Content-Type', 'image/jpeg')
        res.send(image.data)
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
app.post('/api/upscaler', async (req, res) => {
	try {
		console.log(req.body)
		const { images, denoise, scale, format, type, status } = req.body
        if (!images) return res.json({ success: false, message: 'Required an images!' })
        if (!denoise) return res.json({ success: false, message: 'Required an denoise!' })
        if (!scale) return res.json({ success: false, message: 'Required an images!' })
        if (!format) return res.json({ success: false, message: 'Required an format size!' })
        if (!type) return res.json({ success: false, message: 'Required an images!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
        if (/^(https?|http):\/\//i.test(images)) {
          const data_img = await axios.request({
            method: "GET",
            url: images,
            responseType: "arraybuffer"
          })
          const response = await processImage(data_img.data, denoise, scale, format, type)
          const type_img = await fileType.fromBuffer(response)
          res.setHeader('Content-Type', type_img.mime)
          res.send(response)
        } else if (images && typeof images == 'string' && isBase64(images)) {
	   	  const response = await processImage(Buffer.from(images, "base64"), denoise, scale, format, type)
          const type_img = await fileType.fromBuffer(response)
          res.setHeader('Content-Type', type_img.mime)
          res.send(response)
        } else {
          res.json({
            success: false, message: 'No url or base64 detected!!' 
          })
        }
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
app.post('/api/nsfw-check', async (req, res) => {
	try {
		console.log(req.body)
		const { images, status } = req.body
        if (!images) return res.json({ success: false, message: 'Required an images!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
        if (/^(https?|http):\/\//i.test(images)) {
          const data_img = await axios.request({
            method: "GET",
            url: images,
            responseType: "arraybuffer"
          })
          const response = await check_nsfw(data_img.data)
          res.json({
            status: "ok",
            result: response
          })
        } else if (images && typeof images == 'string' && isBase64(images)) {
	   	  const img = Buffer.from(images, "base64")
          const type = await fileType.fromBuffer(img)
          if (type.ext == "jpg") {
            let response = await check_nsfw(img)
            res.json({
              status: "ok",
              result: response
            })
          }
          if (type.ext == "webp") {
            let converting = await allToJpg(img)
            let response = await check_nsfw(converting)
            res.json({
              status: "ok",
              result: response
            })
          }
        } else {
          res.json({
            success: false, message: 'No url or base64 detected!!' 
          })
        }
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
app.post('/api/instagram/stalk', async (req, res) => {
	try {
		console.log(req.body)
		const { username, status } = req.body
        if (!username) return res.json({ success: false, message: 'Required an username text!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
		const response = await gramvio(username)
        res.json({
          status: "ok",
          result: response
        })
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
app.post('/api/instagram/download', async (req, res) => {
	try {
		console.log(req.body)
		const { url, status } = req.body
        if (!url) return res.json({ success: false, message: 'Required an url!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
		const response = await sss_instagram(url)
        res.json({
          status: "ok",
          result: response
        })
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
/*app.post('/tools/ddos', async (req, res) => {
	try {
		console.log(req.body)
		const { url, interval, mount, status } = req.body
        if (!url) return res.json({ success: false, message: 'Required an url!' })
        if (!interval) return res.json({ success: false, message: 'Required an interval number!' })
        if (!mount) return res.json({ success: false, message: 'Required an mount number!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
		const response = await Stress.start({
          debug: true,
          url: url,
          interval: interval,
          max: mount,
          proxy: "./proxy.txt"
        })
      res.json({
        status: "ok",
        target: url,
        interval: interval,
        mount: mount,
        response
      })
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})*/
app.post('/api/bingchat', async (req, res) => {
	try {
		console.log(req.body)
		const { prompt, status } = req.body
        if (!prompt) return res.json({ success: false, message: 'Required an prompt text!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
		const response = await axios.request({
          method: "GET",
          url: "https://aemt.me/bingai?text=" + prompt
        })
        res.json({
          status: "ok",
          result: response.data.result
        })
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})
app.post('/convert/zombie', async (req, res) => {
	try {
		console.log(req.body)
		const { url, status } = req.body
        if (!url) return res.json({ success: false, message: 'Required an url!' })
        if (!status) return res.json({ success: false, message: 'Required an status text!' })

        if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
        const resp = await axios.request({
          method: "GET",
          url: "https://aemt.me/converter/zombie?url=" + url
        })
        const response = await axios.request({
          method: "GET",
          url: resp.data.url,
          contentType: "arraybuffer"
        })
        res.setHeader('Content-Type', 'image/jpeg')
        res.send(response.data)
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({ error: true, message: e === '[object Object]' ? 'Internal Server Error' : e })
	}
})

const PORT = process.env.PORT || 7860
app.listen(PORT, () => {
  console.log('App running on port', PORT)
})                         

function formatSize(num) {
	return bytes(+num || 0, { unitSeparator: ' ' })
}
function isBase64(str) {
	try {
		return btoa(atob(str)) === str
	} catch {
		return false
	}
}
function toPDF(urls) {
	return new Promise(async (resolve, reject) => {
		try {
			if (!Array.isArray(urls)) urls = [urls]
			const doc = new PDFDocument({ margin: 0, size: 'A4' })
			const buffers = []
			
			for (let i = 0; i < urls.length; i++) {
				const response = await fetch(urls[i], { headers: { referer: urls[i] }})
				if (!response.ok) continue
				
				const type = response.headers.get('content-type')
				if (!/image/.test(type)) continue
				
				let buffer = Buffer.from(await response.arrayBuffer())
				if (/gif|webp/.test(type)) buffer = await sharp(buffer).png().toBuffer()
				
				doc.image(buffer, 0, 0, { fit: [595.28, 841.89], align: 'center', valign: 'center' })
				if (urls.length !== i + 1) doc.addPage()
			}
			
			doc.on('data', (chunk) => buffers.push(chunk))
			doc.on('end', () => resolve(Buffer.concat(buffers)))
			doc.on('error', reject)
			doc.end()
		} catch (e) {
			console.log(e)
			reject(e)
		}
	})
}

async function processImage(image, denoise, scale, format, type) {
  return new Promise(async (resolve, reject) => {
    try {
      let type_img = await fileType.fromBuffer(image)
      let random_numbers = Math.floor(Math.random() * 1000);

      const formData = new FormData();
      formData.append("denoise", denoise);
      formData.append("scale", scale);
      formData.append("format", format);
      formData.append("type", type);
      formData.append("file", image, {
        filename:
          "images_" + random_numbers.toString().padStart(3, "0") + "." + type_img.ext,
        contentType: type_img.mime,
      });

      const response = await axios.request({
        method: "POST",
        url: "https://api.alcaamado.es/ns-api-waifu2x/v1/convert",
        data: formData,
        debug: true,
        headers: {
          Authority: "api.alcaamado.es",
          Accept: "application/json",
          Referer: "https://waifu2x.pro/",
          Origin: "https://waifu2x.pro",
          "User-Agent":
            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
        },
      });
      
      const images = await axios.request({
        method: "GET",
        url:
          "https://api.alcaamado.es/api/v2/waifu2x/get?hash=" +
          response.data.hash +
          "&type=" +
          format,
        headers: {
          Accept: "image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
          "Content-Type": "image/jpg",
          Referer: "https://waifu2x.pro/",
          "User-Agent":
            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
        },
        responseType: "arraybuffer",
      });

      // Mengonversi arraybuffer ke Buffer
      //const buffer = Buffer.from(images.data);
      resolve(images.data);
    } catch (error) {
      reject(error);
    }
  });
}

async function check_nsfw(buffer) {
  let _model = await load_model()
  const convert = async (img) => {
  // Decoded image in UInt8 Byte array
    const image = await jpegjs.decode(img, { useTArray: true })

    const numChannels = 3
    const numPixels = image.width * image.height
    const values = new Int32Array(numPixels * numChannels)

    for (let i = 0; i < numPixels; i++)
      for (let c = 0; c < numChannels; ++c)
        values[i * numChannels + c] = image.data[i * 4 + c]

    return tfjs.tensor3d(values, [image.height, image.width, numChannels], 'int32')
  }
  const image = await convert(buffer)
  const predictions = await _model.classify(image)
  image.dispose();
  const results = predictions.map(v => {
    return {
      class_name: v.className,
      probability: v.probability,
      probability_percent: (v.probability * 100).toFixed(2)
    }
  })
  return results
}
async function load_model() {
  return await nsfwjs.load()
}