#!/usr/bin/lua

---@class Stylesheet
---@field name string
---@field lazy? boolean

---@type Stylesheet[]
local stylesheets = {
    {
        name = "reset",
    },
    {
        name = "main",
    },
    {
        name = "content",
        lazy = true
    },
    {
        name = "deco",
        lazy = true
    }
}

---@param path string
---@return string, integer
local function get_file_stem(path)
    return path
        :gsub(".[^.]*$", "") -- get rid of ext
        :gsub(".*/", "") -- get rid of prefix
end

local current_path = assert(os.getenv("ZS_FILE"))
local current_file = get_file_stem(current_path)

local f = io.open("assets/css/" .. current_file .. ".page.css")
if f ~= nil then
    f:close()
    table.insert(stylesheets, {
        name = current_file .. ".page"
    })
end

for _, stylesheet in ipairs(stylesheets) do
    local content = [[link rel="stylesheet" href="/assets/css/]] .. stylesheet.name .. [[.css"]]
    if stylesheet.lazy then
        print("<" .. content .. [[ media="print" onload="this.media='all'; this.onload = null">]])
        print("<noscript><" .. content .. "></noscript>")
    else
        print("<" .. content .. ">")
    end
end