require "sandoz/version"
require "p5"

module Sandoz
  	#https://github.com/processing/p5.js/wiki/p5.js-overview#instantiation--namespace
  	#todo Add html element argument
  	def defsketch(id, &block)
  		sketch = Proc.new do |p|
  			init(p)
  			block.call
  		end
  		@p5 = `new p5(#{sketch}, #{id})`
  	end

  	def view_p
  		`return #{@p5}`
  	end

  	def init(p)
  		@@p = p
  	end

  	def size(w, h)
  		`#{@@p}.createCanvas(#{w}, #{h})`
  	end

  	def background(r, g=nil, b=nil)
  		if g == nil && b == nil
  			`#{@@p}.background(#{r})`
  		else
  			`#{@@p}.background(#{r}, #{g}, #{b})`
  		end
  	end

  	def fill(r, g=nil, b=nil, a=nil)
  		if g==nil && b ==nil
  			`#{@@p}.fill(#{r})`
  		elsif a == nil
  			`#{@@p}.fill(#{r}, #{g}, #{b})`
  		else
  			`#{@@p}.fill(#{r}, #{g}, #{b}, #{a})`
  		end
  	end

  	def rect(x, y, w, h)
  		`#{@@p}.rect(#{x}, #{y}, #{w}, #{h})`
  	end

  	def ellipse(x, y, w, h)
  		`#{@@p}.ellipse(#{x}, #{y}, #{w}, #{h})`
  	end

  	def width
  		`#{@@p}.width`
  	end

  	def height
  		`#{@@p}.height`
  	end

  	def line(x1, y1, x2, y2)
  		`#{@@p}.line(#{x1}, #{y1}, #{x2}, #{y2})`
  	end

  	def point(x, y)
  		`#{@@p}.point(#{x}, #{y})`
  	end

  	def stroke(r, g=nil, b=nil, a=nil)
  		if g==nil && b ==nil
  			`#{@@p}.stroke(#{r})`
  		elsif a == nil
  			`#{@@p}.stroke(#{r}, #{g}, #{b})`
  		else
  			`#{@@p}.stroke(#{r}, #{g}, #{b}, #{a})`
  		end
  	end

  	def no_stroke
  		`#{@@p}.noStroke()`
  	end

  	def stroke_weight(weight)
  		`#{@@p}.strokeWeight(#{weight})`
  	end

    def setup(&block)
      `#{@@p}.setup = #{block}`
    end

    def draw(&block)
      `#{@@p}.draw = #{block}`
    end

  	def dist(x1, y1, x2, y2)
  		`return #{@@p}.dist(x1, y1, x2, y2)`
  	end

  	def random(min, max=nil)
  		if max
  			`return #{@@p}.random(#{min}, #{max})`
  		else
  			`return #{@@p}.random(#{min})`
  		end
  	end

  	def color(r, g=nil, b=nil, a=nil)
  		if g==nil && b ==nil
  			`return #{@@p}.color(#{r})`
  		elsif a == nil
  			`return #{@@p}.color(#{r}, #{g}, #{b})`
  		else
  			`return #{@@p}.color(#{r}, #{g}, #{b}, #{a})`
  		end
  	end

  	def map(value, start1, stop1, start2, stop2)
  		`return #{@@p}.map(#{value}, #{start1}, #{stop1}, #{start2}, #{stop2})`
  	end

  	def millis
  		`return #{@@p}.millis();`
  	end

  	def no_fill
  		`#{@@p}.noFill()`
  	end

  	def noise(x, y=nil, z=nil)
  		if y == nil && z == nil
  			`return #{@@p}.noise(#{x})`
  		elsif z == nil
  			`return #{@@p}.noise(#{x}, #{y})`
  		else
  			`return #{@@p}.noise(#{x}, #{y}, #{z})`
  		end
  	end

  	def text(text, x, y)
  		`#{@@p}.text(#{text}, #{x}, #{y})`
  	end
end