pragma ComponentBehavior

import QtQuick
import Quickshell
import Quickshell.Io
import qs.Common

Image {
  id: root

  property string imagePath: ""
  property string imageHash: ""
  property int maxCacheSize: 512
  readonly property string cachePath: imageHash ? `${Paths.stringify(
                                                    Paths.imagecache)}/${imageHash}@${maxCacheSize}x${maxCacheSize}.png` : ""

  asynchronous: true
  fillMode: Image.PreserveAspectCrop
  sourceSize.width: maxCacheSize
  sourceSize.height: maxCacheSize
  smooth: true
  onImagePathChanged: {
    if (imagePath) {
      hashProcess.command = ["sha256sum", Paths.strip(imagePath)]
      hashProcess.running = true
    } else {
      source = ""
      imageHash = ""
    }
  }
  onCachePathChanged: {
    if (imageHash && cachePath) {
      Paths.mkdir(Paths.imagecache)
      source = cachePath
    }
  }
  onStatusChanged: {
    if (source == cachePath && status === Image.Error) {
      source = imagePath
    } else if (source == imagePath && status === Image.Ready && imageHash
               && cachePath) {
      Paths.mkdir(Paths.imagecache)
      const grabPath = cachePath
      if (visible && width > 0 && height > 0 && Window.window
          && Window.window.visible)
      grabToImage(res => {
                    return res.saveToFile(grabPath)
                  })
    }
  }

  Process {
    id: hashProcess

    stdout: StdioCollector {
      onStreamFinished: {
        root.imageHash = text.split(" ")[0]
      }
    }
  }
}