-- Compile Ink source (stories/*.ink) into the pre-parsed .lua books the game
-- loads.  LÖVE ships no lpeg, so parsing happens here, once, at author time;
-- the game only ever requires the compiled .lua.  Needs a standalone `lua` with
-- lpeg installed (Arch: pacman -S lua-lpeg).
--
-- Run from the project root:
--   lua tools/compile_ink.lua                 # compile every stories/*.ink
--   lua tools/compile_ink.lua start_sign      # compile stories/start_sign.ink
--   lua tools/compile_ink.lua stories/foo.ink # explicit path

package.path = package.path .. ";libs/narrator/?.lua"
local narrator = require("narrator.narrator")

local function compile(path)
	narrator.parse_file(path, { save = true })
	print("compiled " .. path .. " -> " .. (path:gsub("%.ink$", "") .. ".lua"))
end

local targets = {}
if #arg == 0 then
	local ls = io.popen("ls stories/*.ink 2>/dev/null")
	for line in ls:lines() do table.insert(targets, line) end
	ls:close()
else
	for _, a in ipairs(arg) do
		table.insert(targets, a:match("%.ink$") and a or ("stories/" .. a .. ".ink"))
	end
end

assert(#targets > 0, "no .ink files to compile")
for _, t in ipairs(targets) do compile(t) end