src/app/interface/bottom-bar/index.tsx

import { useStore } from "@/app/store"
import { HuggingClap } from "@/components/icons/hugging-clap"
import { Button } from "@/components/ui/button"
import { base64ToFile } from "@/lib/base64ToFile"
import { uploadToHuggingFace } from "@/lib/uploadToHuggingFace"
import { cn } from "@/lib/utils"
import { About } from "../about"
import { startTransition, useState } from "react"
import { upscaleImage } from "@/app/engine/render"
import { sleep } from "@/lib/sleep"

export function BottomBar() {
  const download = useStore(state => state.download)
  const isGeneratingStory = useStore(state => state.isGeneratingStory)
  const prompt = useStore(state => state.prompt)
  const panelGenerationStatus = useStore(state => state.panelGenerationStatus)
  const page = useStore(state => state.page)
  const preset = useStore(state => state.preset)
  const pageToImage = useStore(state => state.pageToImage)

  const allStatus = Object.values(panelGenerationStatus)
  const remainingImages = allStatus.reduce((acc, s) => (acc + (s ? 1 : 0)), 0)

  const upscaleQueue = useStore(state => state.upscaleQueue)
  const renderedScenes = useStore(state => state.renderedScenes)
  const removeFromUpscaleQueue = useStore(state => state.removeFromUpscaleQueue)
  const setRendered = useStore(state => state.setRendered)
  const [isUpscaling, setUpscaling] = useState(false)

  const handleUpscale = () => {
    setUpscaling(true)
    startTransition(() => {
      const fn = async () => {
        for (let [panelId, renderedScene] of Object.entries(upscaleQueue)) {
          try {
            console.log(`upscaling panel ${panelId} (${renderedScene.renderId})`)
            const result = await upscaleImage(renderedScene.assetUrl)
            await sleep(1000)
            if (result.assetUrl) {
              console.log(`upscale successful, removing ${panelId} (${renderedScene.renderId}) from upscale queue`)
              setRendered(panelId, {
                ...renderedScene,
                assetUrl: result.assetUrl
              })
              removeFromUpscaleQueue(panelId)
            }

          } catch (err) {
            console.error(`failed to upscale: ${err}`)
          }
        }
        
        setUpscaling(false)
      }

      fn()
    })
  }

  const handleShare = async () => {
    const dataUrl = await pageToImage()
    // console.log("dataUrl:", dataUrl)
    const fileToUpload = base64ToFile(dataUrl, "comic.png")
    let uploadUrl = ""
    try {
      uploadUrl = await uploadToHuggingFace(fileToUpload)
      console.log("uploadUrl:", uploadUrl)
    } catch (err) {
      console.error("Failed to upload the image to Hugging Face")
    }


    const descriptionMd = `
#### Prompt:
\`\`\`${prompt}\`\`\`

#### Preset:
\`\`\`${preset.label}\`\`\`

#### Comic:
${uploadUrl
  ? (`![${prompt}](${uploadUrl})`)
  : (`(please drag & drop your JPG image here)`)}
`;

    console.log("descriptionMd:", descriptionMd)

    const params = new URLSearchParams({
      title: `[Comic] ${prompt}`,
      description: descriptionMd,
      });
    const paramsStr = params.toString();
    window.open(`https://huggingface.co/spaces/jbilcke-hf/comic-factory/discussions/new?${paramsStr}`, '_blank');
  }

  const handlePrint = () => {
    window.print()
  }
  return (
    <div className={cn(
      `print:hidden`,
      `fixed bottom-2 md:bottom-4 left-2 right-0 md:left-3 md:right-1`,
      `flex flex-row`,
      `justify-between`,
      `pointer-events-none`
    )}>
      <div className={cn(
        `flex flex-row`,
        `items-end`,
        `pointer-events-auto`,
        `animation-all duration-300 ease-in-out`,
        isGeneratingStory ? `scale-0 opacity-0` : ``,
        `space-x-3`,
        `scale-[0.9]`
      )}>
        <About />
      </div>
      <div className={cn(
      `flex flex-row`,
      `pointer-events-auto`,
      `animation-all duration-300 ease-in-out`,
      isGeneratingStory ? `scale-0 opacity-0` : ``,
      `space-x-3`,
      `scale-[0.9]`
    )}>
      <div>
        {
       // there is an issue, this env check doesn't work..
        // process.env.NEXT_PUBLIC_CAN_UPSCALE === "true" ?
        <Button
          onClick={handleUpscale}
          disabled={!prompt?.length || remainingImages > 0 || isUpscaling || !Object.values(upscaleQueue).length}
        >
          {isUpscaling
            ? `${allStatus.length - Object.values(upscaleQueue).length}/${allStatus.length} ⌛`
            : "Upscale"}
        </Button>
        // : null
      }
      </div>
        <div>
          <Button
            onClick={handlePrint}
            disabled={!prompt?.length}
          >
            Print
          </Button>
        </div>
        <div>
          <Button
            onClick={download}
            disabled={!prompt?.length}
          >
            <span className="hidden md:inline">{
            remainingImages ? `${allStatus.length - remainingImages}/${allStatus.length} panels ⌛` : `Save`
            }</span>
            <span className="inline md:hidden">{
              remainingImages ? `${allStatus.length - remainingImages}/${allStatus.length} ⌛` : `Save`
            }</span>
           </Button>
        </div>
        <div>
          {
          // there is an issue, this env check doesn't work..
          // process.env.NEXT_PUBLIC_ENABLE_COMMUNITY_SHARING === "true" ? 
          <Button
            onClick={handleShare}
            disabled={!prompt?.length}
            className="space-x-2"
          >
            <div className="scale-105"><HuggingClap /></div>
            <div>
              <span className="hidden md:inline">Share to community</span>
              <span className="inline md:hidden">Share</span>
            </div>
          </Button> 
          //: null
        }
        </div>
      </div>
    </div>
  )
}