require "markd"
require "dir"
require "file"
require "path"

begin
	Dir.mkdir_p Path["dist/static"]
rescue
	if !Dir.exists? Path["dist/static"]
		puts "Could not create required folders. Exiting."
		exit 1
	end
end

Base = begin
	if File.file? "base.html"
		File.read "base.html"
	elsif File.file? Path[ENV["HOME"]+"/.config/blogtool/base.html"]
		File.read Path[ENV["HOME"]+"/.config/blogtool/base.html"]
	elsif File.file? Path["/etc/blogtool/base.html"]
		File.read Path["/etc/blogtool/base.html"]
	else
		puts "Can't find base.html"
		exit 1
	end
end


BaseCSS = begin
	if File.file? Path[ENV["HOME"]+"/.config/blogtool/styles.css"]
		File.read Path[ENV["HOME"]+"/.config/blogtool/styles.css"]
	elsif File.file? Path["/etc/blogtool/styles.css"]
		File.read Path["/etc/blogtool/styles.css"]
	else
		""
	end
end

def render_file(filename : String | Path)
	Base.sub("## CONTENT", Markd.to_html(File.read(filename), Markd::Options.new(smart: true, safe: false)))
end

index = Base
content = ""
Dir.entries("articles").select{ |i| i != "." && i != ".." }.each do |article|
	if article[article.size-3, article.size] == ".md"
		File.write Path.new("dist", article[0,article.size-3]+".html"), render_file("articles/"+article)
		content += "<h3><a href=\"/"+article[0,article.size-3]+".html\">"+article[0,article.size-3].gsub("-", " ")+"</a></h3>\n"
	else
		File.write Path.new("dist", article+".html"), render_file("articles/"+article)
		content += "<h3><a href=\"/"+article+".html\">"+article.gsub("-", " ")+"</a></h3>\n"
	end
end
index = index.gsub("## CONTENT") { content }
File.write Path["dist/index.html"], index

Dir.entries("assets").select{ |i| i != "." && i != ".." }.each do |asset|
	File.copy Path.new("assets", asset), Path.new("dist", "static", asset)
end

File.write Path.new("dist", "static", "styles.css"), BaseCSS+File.read("styles.css")
File.write Path.new("dist", "about.html"), render_file("about.md")