require "json"
require "securerandom"
require_relative "data.rb"
require_relative "opts.rb"
require_relative "file.rb"
module ChartJS
class LineChart
def initialize(&block)
@type = "line"
@data = nil
@opts = nil
@file = false
build(&block)
end
def build(&block)
instance_eval(&block)
if @file
f = SaveFile.new(@file, html: to_html)
f.save!
end
self
end
def to_h
{ type: @type, data: @data.to_h, options: @opts.to_h }
end
def to_json(type = :pretty)
return JSON.pretty_generate(to_h) if type == :pretty
to_h.to_json
end
def data(&block)
return @data unless block_given?
@data = Data.new.build(&block)
end
def opts(&block)
return @opts unless block_given?
@opts = Opts.new.build(&block)
end
def cdn(version: "2.6.0", min: true)
if min
""
else
""
end
end
def random_color
"##{SecureRandom.hex(3)}"
end
def random_id
SecureRandom.uuid
end
def script(config: to_json, id: random_id)
""
end
def to_html(width: "60%", heigth: width, head: true, cdn: head, version: "2.6.0", body: true, id: random_id, script: true)
str = []
if cdn
str << "#{cdn(version: version)}"
end
str << "" if body
str << ""
str << "
"
str << "" if body
str << script(id: id) if script
str.join("\n")
end
def file(path, &block)
@file = path
@file_block = block
end
end
end