-- make a copy of package.path
local sSrc = fs.getDir(shell.getRunningProgram())
local sRoot = fs.combine(sSrc, "..")
local sData = fs.combine(sRoot, "data")
local sPage = fs.combine(sData, "pages")

local ctx

local function init(...)
    -- [Context]
    ctx = { products = {}, theme = {}, config = {}, pages = {} }
    ctx.path = {
        page = sPage,
        src = sSrc,
        data = sData
    }

    -- Logger
    ctx.logger = require("logger"):new({ debugging = settings.get("kristify.debug"),
        log2file = settings.get("kristify.log2file") })


    -- [Pages]
    local pages = fs.list(sPage)
    for i = 1, #pages do
        local f = fs.open(fs.combine(sPage, pages[i]), 'r')
        ctx.pages[pages[i]] = f.readAll()
        f.close()
    end

    -- [Data] (config,theme,products, etc.)
    local function loadStr(str, begin, env)
        if not begin then begin = "" end
        local success, result = pcall(loadstring(begin .. str, "t", env))
        if success and type(result) == "table" then
            return result
        end
        return false
    end

    local function loadLuaFile(path, env)
        if fs.exists(path) and not fs.isDir(path) then
            local f = fs.open(path, 'r')
            local c = f.readAll()
            f.close()
            local result = loadStr(c, "", env)
            if not result then
                ctx.logger:error("Could not load \'" .. path .. "\' properly!\n" .. tostring(result))
                sleep(1)
            end
            return result
        else
            ctx.logger:error("Could not load \'" .. path .. "\'!")
            sleep(0.5)
        end
        return false
    end

    -- theme
    local col = { white = 0x1, orange = 0x2, magenta = 0x4, lightBlue = 0x8, yellow = 0x10, lime = 0x20, pink = 0x40,
        grey = 0x80, lightGrey = 0x100, cyan = 0x200, purple = 0x400, blue = 0x800, brown = 0x1000, green = 0x2000,
        red = 0x4000, black = 0x8000 }
    local inferiorcol = col;
    inferiorcol.gray = col.grey;
    inferiorcol.lightGray = col.lightGrey
    local result = loadLuaFile(fs.combine(sPage, "theme.lua"), { colours = col, colors = inferiorcol })
    if result then
        ctx.theme = result
    end
    -- config
    result = loadLuaFile(fs.combine(sData, "config.lua"))
    if result then
        ctx.config = result
    end
    -- products
    result = loadLuaFile(fs.combine(sData, "products.lua"))
    if result then
        ctx.products = result
    end

    -- Set debug mode
    settings.define("kristify.debug", {
        description = "If kristify should be debugging",
        default = false,
        type = "boolean"
    })

    settings.define("kristify.log2file", {
        description = "If kristify should log to a file",
        default = false,
        type = "boolean"
    })

    -- Load scripts
    ctx.kristly = require(fs.combine("libs", "kristly"))
    ctx.utils = require("utils")
    ctx.webhooks = require("webhook")
    ctx.speakerLib = require("speaker")

    ctx.logger.debug("Loading in inv lib")
    ctx.logger.debug("Configured storage: " .. textutils.serialize(ctx.config.storage))
    ctx.storage = require(fs.combine("libs", "inv"))(ctx.config.storage or {})

    return ctx
end

-- INIT
term.clear()
term.setCursorPos(1, 1)
local args = table.pack(...)
xpcall(function()
    init(table.unpack(args, 1, args.n))
end, function(err)
    ctx.logger:error(err)
    return
end)

-- MAIN
local function execFile(sPath)
    local script, err = loadfile(sPath, "t", _ENV)
    if not script then
        ctx.logger:error(err)
        return
    end
    script(ctx)
end

parallel.waitForAny(
    function()
        execFile(fs.combine(sSrc, "backend.lua"))
    end,
    function()
        execFile(fs.combine(sSrc, "frontend.lua"))
    end
)

ctx.logger:debug("Something exited (init.lua)")