#!/usr/bin/env lua
local sitelib = require "sitelib"
local fs = require "lfs"
local articles = 4

print("Finding blog posts...")
local ftab = {}
for file in fs.dir(sitelib.srcpath.."/blog") do
 if file:sub(1,1) ~= "." then
  local index = tonumber(file:match("(%d+).md"))
  if index then
   ftab[index] = file
  end
 end
end

local pages = {}
for i = #ftab, #ftab-(articles-1), -1 do
 local f = io.open(sitelib.srcpath.."/blog/"..ftab[i])
 local c = f:read("*a")
 f:close()
 local page = sitelib.parsepage(c)
 pages[#pages+1] = {page.title,"/blog/"..tostring(i)..".html"}
end

print("Reading template...")
local f = io.open(sitelib.includepath.."/home-top.html","rb")
local header = f:read("*a")
f:close()
local f = io.open(sitelib.includepath.."/home-end.html","rb")
local footer = f:read("*a")
f:close()

print("Writing index...")
local f = io.open(sitelib.outpath.."/index.html","wb")
f:write(header)
while #pages > 0 do
 local lp, rp = table.remove(pages,1), table.remove(pages,1)
 f:write('<div class="wrapper">')
 f:write(' <div class="left-column">')
 f:write('  <h2><a href="'..lp[2]..'">'..lp[1]..'</a></h2>')
 f:write(' </div>')
 f:write(' <div class="right-column">')
 f:write('  <h2><a href="'..rp[2]..'">'..rp[1]..'</a></h2>')
 f:write(' </div>')
 f:write('</div>')
end
f:write(footer)
f:write(sitelib.footer)
f:close()