import argparse
import std/httpclient
import std/base64
import std/oids
import std/json
import std/strutils

var parser = newParser:
    help("Abuse the dalle-mini API from the cli!")
    option("-o", "--output", help="Write output to this folder", default=some("/tmp/"))
    option("-n", "--number", help="number of images you'd like", default=some("9"))
    arg("prompt", nargs = -1)


try:
    let arguments = parser.parse()
    var client = newHttpClient(userAgent="Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0")
    client.headers = newHttpHeaders({
     "Accept":"application/json",
     "Accept-Language":"en-US,en;q=0.5",
     "Accept-Encoding":"gzip, deflate, br",
     "Referer":"https://hf.space/",
     "Content-Type":"application/json",
     "Origin":"https://hf.space",
     "DNT":"1",
     "Connection":"keep-alive",
     "Sec-Fetch-Dest":"empty",
     "Sec-Fetch-Mode":"cors",
     "Sec-Fetch-Site":"cross-site"
        })

    for parsedPrompt in arguments.prompt:
        echo "Now generating: " & parsedPrompt
        var data = "{\"prompt\":\"" & parsedPrompt & "\"}"
        var response: Response
        var max = (parseInt(arguments.number)/9 + 1)
        for i in countup(0,toInt(max)):
            echo "New run..."

            echo "Waiting for response..."
            response = client.request("https://bf.dallemini.ai/generate", httpMethod = HttpPost, body=data)
            while response.status != "200 OK":
                echo "Could not get response due to " & response.status & "! Trying again in 15 seconds!"
                sleep 15
                response = client.request("https://bf.dallemini.ai/generate", httpMethod = HttpPost, body=data)
    
            var JSONifiedResponse = parseJSON(response.body)
            for encodedImage in JSONifiedResponse["images"]:
                var stringImage = $encodedImage
                #var image = base64.decode(stringImage.replace("\\").replace("\"").replace("="))
                #echo stringImage.replace("\\n").replace("\"")
                var image = base64.decode(stringImage.replace("\\n").replace("\""))
                var filename = arguments.output & parsedPrompt & " - " & $oids.genOid() & ".jpg"
                echo "writing image to " & filename
                writeFile(filename, image)


except ShortCircuit as e:
  if e.flag == "argparse_help":
    echo parser.help
    quit(1)
except UsageError:
  stderr.writeLine getCurrentExceptionMsg()
  quit(1)