import javax.imageio.ImageIO
import java.io.FileOutputStream


import org.springframework.beans.factory.InitializingBean

class ThumbnailController implements InitializingBean
{

  def grailsApplication
  def thumbnailService

  def show =
  {
    def rasterEntry = RasterEntry.get(params.id)
    if ( !rasterEntry )
    {
      flash.message = "RasterEntry not found with id ${params.id}"
      redirect(action: list)
    }
    else
    {
      def projectionType = params.projectionType;
      RasterDataSet rasterDataSet = rasterEntry.rasterDataSet
      RasterFile rasterFile = RasterFile.findWhere(rasterDataSet: rasterDataSet, type: "main")
      def size = params.size?.toInteger()
      def mimeType = "image/jpeg"

      if ( !size )
        size = grailsApplication.config.thumbnail.defaultSize

      String cacheDirPath = grailsApplication.config.thumbnail.cacheDir
      String thumbnailPrefix = "${rasterEntry.id}-${size}-${projectionType}"

      File outputFile = thumbnailService.getThumbnail(
          cacheDirPath,
          thumbnailPrefix,
          size,
          mimeType,
          rasterFile.name,
          rasterEntry.entryId,
          projectionType
      )

      if ( outputFile.exists() && (outputFile.length() > 0) )
      {
        def image = ImageIO.read(outputFile)

        response.contentType = mimeType
        ImageIO.write(image, "jpeg", response.outputStream)
      }
    }
  }

  def frame = {
    def videoDataSet = VideoDataSet.get(params.id)

    if ( !videoDataSet )
    {
      flash.message = "VideoDataSet not found with id ${params.id}"
      redirect(action: list)
    }
    else
    {

      response.contentType = "image/png"

      VideoFile videoFile = VideoFile.findWhere(videoDataSet: videoDataSet, type: "main")
      def size = params.size?.toInteger()

      if ( !size )
        grailsApplication.config.thumbnail.defaultSize

      String cacheDirPath = grailsApplication.config.thumbnail.cacheDir
      String thumbnailPrefix = "${videoDataSet.id}-${size}"


      File outputFile = thumbnailService.getFrame(cacheDirPath, thumbnailPrefix, size, videoFile.name)

      def image = ImageIO.read(outputFile)

      response.contentType = "image/png"
      ImageIO.write(image, "png", response.outputStream)
    }
  }

  def asHTML = {
    def size = params.size

    if ( !size )
      grailsApplication.config.thumbnail.defaultSize

    render(contentType: "text/html") {
      html {
        body {
          img(src: createLink(action: "show", id: params.id, params: params), width: size, height: size)
        }
      }
    }
  }

  def proxy = {

    def url = "${params.url}"

    params.each {
      url += "&${it}"
    }

    println url

    def text = url.toURL().text

    println text

    render(contentType: "text/xml", text: text)
  }

  public void afterPropertiesSet()
  {
    //To change body of implemented methods use File | Settings | File Templates.
  }
}