#!/usr/bin/env ruby

require 'dyndoc/document'

args=ARGV.select{|name|
  if (name[0,2]!="--" and name.include? "=")
    key,*val=name.split("=")
    val=val.join("=")
    Settings["cfg_dyn.user_input"] << [key,val]
    false
  else
    true
  end
}

args=["-h"] if args.empty?

# Default for dyn-yml is without :R and :jl and :exec_mode activated since it is tailor-made for managing task
# use option -R to activate :R (and :jl if declared in ~/.dyndoc.yml) 
Settings['cfg_dyn.ruby_only']=true
# use option -w (like write) to deactivate exec_mode
Settings["cfg_dyn.model_doc"] = "Content"
Settings["cfg_dyn.exec_mode"] = "yes"

require 'optparse'

OptionParser.new do |opts|
  opts.banner = "Usage: dyndoc-compile.rb [options]"

  opts.on("-d", "--docs one,two,three", Array, "list of documents to compile") do |list|
    Settings["cfg_dyn.doc_list"] = list
  end

  opts.on("-f", "--format ", "format of the dyndoc document") do |format|
    Settings["cfg_dyn.format_doc"] = format.to_sym
  end

  opts.on('-t','--tags TAGS',Array,'filter tags') {|t| Settings["cfg_dyn.tag_tmpl"] = t}

  opts.on('-C',"--content_only", "content only mode (no header!)") do
    Settings["cfg_dyn.model_doc"] = "Content"
  end

  opts.on('-w',"--no_exec_only", "exec only mode (no document!)") do
    Settings["cfg_dyn.model_doc"] = "default"
    Settings["cfg_dyn.exec_mode"] = "no"
  end

  opts.on('-c', '--cmd COMMAND','[a(rchive old)][r(emove old)][s(ave)][pdf(latex)]') {|c|
    cmd =[:make_content]
    cmd << :save_old if c.include? "a"
    cmd << :rm_old if c.include? "r"
    cmd << :save if c.include? "s"
    ## cmd << :cat if c.include? "c"
    cmd << :pdf  if c =~ /(E)?pdf([1-3])?/ #if c.include? "pdf"
    Settings["cfg_dyn.options.pdflatex_echo"]=true if $1 # useable for log sytem (to introduce possibly later)
    Settings["cfg_dyn.options.pdflatex_nb_pass"]=$2.to_i if $2
    ## cmd << :png if c.include? "png"
    ## cmd << :view if c.include? "v"
    ## cmd << :save << :view if c.include? "x"
    ## cmd =[:cat] if cmd.empty? #and  cfg_dyn[:model_doc]=="content"
    ## cmd = [:pdf] if c=="pdf" #only pdflatex
    Settings["cfg_dyn.cmd_doc"] = cmd
  }

  opts.on("-l", "--list", "list of documents available") do
    Settings["cfg_dyn.cmd_doc"] = [:list]
  end

  opts.on("-j", "--jl", "import julia") do
    Settings["cfg_dyn.langs"] << :jl
  end

  # opts.on("-r", "--remote", "pandoc or pdflatex (dyn)task performed remotely") do
  #   Settings["cfg_dyn.remote_dyntask"] = true
  # end

  opts.on('-D','--debug','debug mode') do
    Settings['cfg_dyn.debug']=true
  end

  opts.on('-R','--no_rb_only','no ruby only mode') do
    Settings['cfg_dyn.ruby_only']=false
  end

  opts.on("-p", "--pandoc ", "filter for pandoc (tex2docx,...)") do |f|
    #p [:pandoc,f]
    Settings["cfg_dyn.pandoc_filter"] = f
  end

  # opts.on('--docker',"docker mode") do
  #     Settings["cfg_dyn.docker_mode"]=true
  # end

end.parse!(args)

## ARGV is consumed before except
doc=args[0]

doc += "_dyn.yml" unless doc =~ /_dyn.yml$/
require 'yaml'
require 'fileutils'

cfg_yml=YAML::load_file(doc)

doc =~ /^(.*)_dyn\.yml$/
docname=$1

unless cfg_yml["dyntask"]
  #attempt to know if format is the simplified one for workflow
  ks=cfg_yml.keys
  cfg2={"dyntask" => "workflow", "params" => {"id" => ks[0], "workdir" => cfg_yml[ks[0]]}}
  tasks={}
  ks[1..-1].each do |t|
    kt,*pt=cfg_yml[t].strip.split("\n")
    wt,tn=kt.strip.split("->").map{|e| e.strip if e}
    if tn
      tasks[t]={"dyntask" => tn}
      wt="init" if wt.empty?
      tasks[t]["wait"]=wt
      pt=YAML::load(pt.join("\n"))  
      tasks[t]["params"]=pt
    else
      puts "Warning: task "+ t + " not considered because malformed"
    end
  end
  cfg2["params"]["tasks"]=tasks
  cfg_yml=cfg2
end

dyntaskname=cfg_yml["dyntask"]

if dyntaskname
  puts dyntaskname
  dyntaskname += "_task.dyn" unless dyntaskname=~/_task.dyn$/
  dyntaskpath=dyntaskname
  is_dyntask=File.exists? dyntaskpath
  unless is_dyntask
    dyntaskpath=File.join(ENV["HOME"],"dyndoc","tasks",dyntaskname)
    is_dyntask=File.exists? dyntaskpath
  end
  unless is_dyntask
    share_path=File.expand_path("../../share", __FILE__)
    dyntaskpath=File.join(share_path,"dyntasks",dyntaskname)
    is_dyntask=File.exists? dyntaskpath
  end
	if is_dyntask
		dynfile=docname+".dyn"
    FileUtils.cp dyntaskpath, dynfile
    $params=cfg_yml["params"]
    $dyntask=dyntaskname
		cfg_yml["params"].each do |key,val|
			Settings["cfg_dyn.user_input"] << [key,val]
		end

		d=Dyndoc::TemplateDocument.new(dynfile)
		d.make_all
	end
end