---------------------------------------------------
-- Licensed under the GNU General Public License v2
--  * (c) 2010, Adrian C. <anrxc@sysphere.org>
---------------------------------------------------

-- {{{ Grab environment
local type = type
local tonumber = tonumber
local string = { match = string.match }

local helpers = require("vicious.helpers")
local spawn = require("vicious.spawn")
-- }}}


-- Gmail: provides count of new and subject of last e-mail on Gmail
-- vicious.widgets.gmail
local gmail_all = {}

-- {{{ Gmail widget type
local function parse(warg, stdout, stderr, exitreason, exitcode)
    local count =   -- Count comes before messages and matches at least 0
        tonumber(string.match(stdout, "<fullcount>([%d]+)</fullcount>")) or 0

    -- Find subject tag
    local title = string.match(stdout, "<entry>.-<title>(.-)</title>") or "N/A"

    -- Check if we should scroll, or maybe truncate
    if type(warg) == "number" then
        title = helpers.truncate(title, warg)
    elseif type(warg) == "table" then
        title = helpers.scroll(title, warg[1], warg[2])
    end

    return { ["{count}"] = count, ["{subject}"] = title }
end

function gmail_all.async(format, warg, callback)
    -- Get info from the Gmail atom feed using curl --netrc.
    -- With username 'user' and password 'pass'
    -- $HOME/.netrc should look similar to:
    -- machine mail.google.com login user password pass
    -- BE AWARE THAT MAKING THESE SETTINGS IS A SECURITY RISK!
    spawn.easy_async("curl -fsn https://mail.google.com/mail/feed/atom",
                     function (...) callback(parse(warg, ...)) end)
end
-- }}}

return helpers.setasyncall(gmail_all)