--[[--
This module contains miscellaneous helper functions for FileManager
]]

local Device = require("device")
local DocSettings = require("docsettings")
local util = require("ffi/util")
local _ = require("gettext")

local filemanagerutil = {}

function filemanagerutil.getDefaultDir()
    return Device.home_dir or "."
end

function filemanagerutil.abbreviate(path)
    if not path then return "" end
    if G_reader_settings:nilOrTrue("shorten_home_dir") then
        local home_dir = G_reader_settings:readSetting("home_dir") or filemanagerutil.getDefaultDir()
        if path == home_dir then
            return _("Home")
        end
        local len = home_dir:len()
        local start = path:sub(1, len)
        if start == home_dir and path:sub(len+1, len+1) == "/" then
            return path:sub(len+2)
        end
    end
    return path
end

-- Purge doc settings in sidecar directory,
function filemanagerutil.purgeSettings(file)
    local file_abs_path = util.realpath(file)
    if file_abs_path then
        DocSettings:open(file_abs_path):purge()
    end
end

return filemanagerutil