Class: TokenCollection

Inherits:
Artbase::Base show all
Defined in:
lib/artbase/collection/token.rb

Defined Under Namespace

Classes: Meta

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Artbase::Base

#_normalize_trait_type, #_normalize_trait_value, #calc_attribute_counters, #convert_images, #dump_attributes, #export_attributes, #make_composite, #make_strip

Constructor Details

#initialize(slug, count, token_base:, image_base: nil, image_base_id_format: nil, format:, source:, top_x: 0, top_y: 0, center_x: true, center_y: true, excludes: [], offset: 0) ⇒ TokenCollection 



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# File 'lib/artbase/collection/token.rb', line 83

def initialize( slug, count,
                token_base:,
                image_base: nil,
                image_base_id_format: nil,
                format:,
                source:,
                top_x: 0,
                top_y: 0,
                center_x: true,
                center_y: true,
                excludes: [],
                offset: 0  )   # check: rename count to items or such - why? why not?
  @slug = slug
  @count = count
  @offset = offset   ## starting by default at 0 (NOT 1 or such)

  @token_base = token_base
  @image_base = image_base
  @image_base_id_format = image_base_id_format

  @width, @height = _parse_dimension( format )


  ## note: allow multiple source formats / dimensions
  ### e.g. convert   512x512 into  [ [512,512] ]
  ##
  source = [source]  unless source.is_a?( Array )
  @sources = source.map { |dimension| _parse_dimension( dimension ) }

  @top_x = top_x    ## more (down)sampling / pixelate options
  @top_y = top_y
  @center_x = center_x
  @center_y = center_y

  @excludes = excludes
end

Instance Attribute Details

#count ⇒ Object (readonly)

Returns the value of attribute count.



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# File 'lib/artbase/collection/token.rb', line 81

def count
  @count
end

#slug ⇒ Object (readonly)

Returns the value of attribute slug.



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# File 'lib/artbase/collection/token.rb', line 81

def slug
  @slug
end

Instance Method Details

#_parse_dimension(str) ⇒ Object

e.g. convert dimension (width x height) “24x24” or “24 x 24” to [24,24]



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# File 'lib/artbase/collection/token.rb', line 122

def _parse_dimension( str )
  str.split( /x/i ).map { |str| str.strip.to_i }
end

#_range(offset: 0) ⇒ Object

return “default” range - make “private” helper public - why? why not?



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# File 'lib/artbase/collection/token.rb', line 127

def _range( offset: 0 )    ## return "default" range  - make "private" helper public - why? why not?
   ## note: range uses three dots (...) exclusive (NOT inclusive) range
   ##  e.g. 0...100 => [0,..,99]
   ##       1...101 => [1,..,100]
   ##
   ##  note: allow offset argument
   ##           (to start with different offset - note: in addition to builtin 0/1 offset)

   (0+@offset+offset...@count+@offset)
end

#download_images(range = _range, force: false, direct: @image_base ? true : false) ⇒ Object

note: default to direct true if image_base present/availabe

                 otherwise to false
todo/check: change/rename force para to overwrite - why? why not?



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# File 'lib/artbase/collection/token.rb', line 331

def download_images( range=_range, force: false,
                                         direct: @image_base ? true : false )
  start = Time.now
  delay_in_s = 0.3

  range.each do |id|

    ## note: skip if (downloaded) file already exists
    skip = false
    if !force
      ['png', 'gif', 'jgp', 'svg'].each do |format|
        if File.exist?( "./#{@slug}/token-i/#{id}.#{format}" )
          skip = true
          break
        end
      end
    end
    next if skip

    image_src = image_url( id: id, direct: direct )

    ## note: will auto-add format file extension (e.g. .png, .jpg)
    ##        depending on http content type!!!!!
    start_copy = Time.now
    copy_image( image_src, "./#{@slug}/token-i/#{id}" )

    stop = Time.now

    diff = stop - start_copy
    puts "    download image in #{diff} sec(s)"

    diff = stop - start
    mins = diff / 60  ## todo - use floor or such?
    secs = diff % 60
    puts "up #{mins} mins #{secs} secs (total #{diff} secs)"

    puts "sleeping #{delay_in_s}s..."
    sleep( delay_in_s )
  end
end

#download_meta(range = _range, force: false) ⇒ Object 



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# File 'lib/artbase/collection/token.rb', line 296

def download_meta( range=_range, force: false )
  start = Time.now
  delay_in_s = 0.3

  range.each do |id|
    outpath = "./#{@slug}/token/#{id}.json"
    if !force && File.exist?( outpath )
      next   ## note: skip if file already exists
    end

    dirname = File.dirname( outpath )
    FileUtils.mkdir_p( dirname )  unless Dir.exist?( dirname )

    puts "==> #{id} - #{@slug}..."

    token_src = meta_url( id: id )
    copy_json( token_src, outpath )

    stop = Time.now
    diff = stop - start
    puts "    download token metadata in #{diff} sec(s)"

    mins = diff / 60  ## todo - use floor or such?
    secs = diff % 60
    puts "up #{mins} mins #{secs} secs (total #{diff} secs)"

    puts "sleeping #{delay_in_s}s..."
    sleep( delay_in_s )
  end
end

#each_image(range = _range, exclude: true, &blk) ⇒ Object 



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# File 'lib/artbase/collection/token.rb', line 140

def each_image( range=_range,
                exclude: true,      &blk )
  range.each do |id|
    ####
    # filter out/skip
    # if exclude && @excludes.include?( id )
    #  puts "  skipping / exclude #{id}..."
    #  next
    # end

    puts "==> #{id}"
    img = Image.read( "./#{@slug}/#{@width}x#{@height}/#{id}.png" )
    blk.call( img, id )
  end
end

#each_meta(range = _range, exclude: true, &blk) ⇒ Object 



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# File 'lib/artbase/collection/token.rb', line 157

def each_meta( range=_range,
               exclude: true,      &blk )
  range.each do |id|  ## check: change/rename id to index - why? why not?
    meta = Meta.read( "./#{@slug}/token/#{id}.json" )

    ####
    # filter out/skip
    # if exclude && @excludes.include?( meta.name )
    #  puts "  skipping / exclude #{id} >#{meta.name}<..."
    #  next
    # end

    blk.call( meta, id )
  end
end

#image_url(id:, direct: @image_base ? true : false) ⇒ Object 



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# File 'lib/artbase/collection/token.rb', line 263

def image_url( id:,
                direct: @image_base ? true : false  )
   src =  if direct && @image_base
             ###
             ## todo/fix:
             ##   change image_base_id_format
             ##    to image_base proc with para id and call proc!!!!
             if @image_base_id_format
               @image_base.gsub( '{id}', @image_base_id_format % id )
             else
               @image_base.gsub( '{id}', id.to_s )
             end
          else
             ## todo/check - change/rename data to meta - why? why not?
             data = Meta.read( "./#{@slug}/token/#{id}.json" )

             meta_name  = data.name
             meta_image = data.image

             puts "==> #{id} - #{@slug}..."
             puts "   name: #{meta_name}"
             puts "   image: #{meta_image}"
             meta_image
         end
   src

   ## quick ipfs (interplanetary file system) hack - make more reusabele!!!
   src = handle_ipfs( src )
   src
end

#meta_url(id:) ⇒ Object Also known as: token_url 



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# File 'lib/artbase/collection/token.rb', line 253

def meta_url( id: )
  src = @token_base.gsub( '{id}', id.to_s )

  ## quick ipfs (interplanetary file system) hack - make more reusabele!!!
  src = handle_ipfs( src )
  src
end

#pixelate(range = _range, exclude: true, force: false, debug: false, zoom: nil) ⇒ Object 



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# File 'lib/artbase/collection/token.rb', line 177

def pixelate( range=_range, exclude: true,
                            force: false,
                            debug: false,
                            zoom: nil )

  range.each do |id|

    if exclude && @excludes.include?( id )
      puts "  skipping #{id}; listed in excludes #{@excludes.inspect}"
      next
    end

    outpath = "./#{@slug}/#{@width}x#{@height}/#{id}.png"
    if !force && File.exist?( outpath )
      next   ## note: skip if file already exists
    end

    center_x =  if @center_x.is_a?( Proc ) then @center_x.call( id ); else @center_x; end
    center_y =  if @center_y.is_a?( Proc ) then @center_y.call( id ); else @center_y; end



    puts "==> #{id}  - reading / decoding #{id} ..."
    start = Time.now

    img = Image.read( "./#{@slug}/token-i/#{id}.png" )

    stop = Time.now
    diff = stop - start

    puts "  in #{diff} sec(s)\n"


    source = nil
    @sources.each do |source_width, source_height|
      if img.width == source_width && img.height == source_height
          source = [source_width, source_height]
          break
      end
    end


    if source
        source_width  = source[0]
        source_height = source[1]

        steps_x = Image.calc_sample_steps( source_width-@top_x, @width,   center: center_x )
        steps_y = Image.calc_sample_steps( source_height-@top_y, @height, center: center_y )

        pix = if debug
              img.pixelate_debug( steps_x, steps_y,
                                  top_x: @top_x,
                                  top_y: @top_y )
            else
              img.pixelate( steps_x, steps_y,
                            top_x: @top_x,
                            top_y: @top_y )
            end
      ## todo/check: keep usingu slug e.g. 0001.png or "plain" 1.png - why? why not?
      ## slug = "%04d" % id
      pix.save( outpath )

      if zoom
        outpath = "./#{@slug}/#{@width}x#{@height}/#{id}@#{zoom}x.png"
        pix.zoom( zoom ).save( outpath )
      end
    else
      puts "!! ERROR - unknown/unsupported dimension - #{img.width}x#{img.height}; sorry - tried:"
      pp @sources
      exit 1
    end
  end
end