-- tracker.today — report total active time accrued today (local-day).
local lang = jarvis.context.language or "ru"
local now = jarvis.context.time.timestamp or os.time()

local data = jarvis.state.get("data") or {}
local sessions = data.sessions or {}

-- Local-day boundary: use the calendar fields (already in local time).
local t = jarvis.context.time
local y = tonumber(t.year) or 1970
local mo = tonumber(t.month) or 1
local d = tonumber(t.day) or 1
local h = tonumber(t.hour) or 0
local mi = tonumber(t.minute) or 0
local s = tonumber(t.second) or 0

-- Seconds since local midnight today, derived from the broken-down time.
local secs_today = h * 3600 + mi * 60 + s
local today_start = now - secs_today

local total = 0
for _, sess in ipairs(sessions) do
    local sstart = tonumber(sess.start) or 0
    local send = tonumber(sess["end"]) or 0
    -- Overlap with [today_start, now]
    local lo = math.max(sstart, today_start)
    local hi = math.min(send, now)
    if hi > lo then total = total + (hi - lo) end
end

-- Include the open session, if any, up to now.
local open_start = data.current_session_start
if open_start then
    local lo = math.max(tonumber(open_start) or 0, today_start)
    if now > lo then total = total + (now - lo) end
end

local function format_dur(sec)
    sec = math.floor(sec)
    local hh = math.floor(sec / 3600)
    local mm = math.floor((sec % 3600) / 60)
    if lang == "ru" then
        local function h_word(n)
            local n10 = n % 10; local n100 = n % 100
            if n100 >= 11 and n100 <= 14 then return "часов" end
            if n10 == 1 then return "час" end
            if n10 >= 2 and n10 <= 4 then return "часа" end
            return "часов"
        end
        local function m_word(n)
            local n10 = n % 10; local n100 = n % 100
            if n100 >= 11 and n100 <= 14 then return "минут" end
            if n10 == 1 then return "минута" end
            if n10 >= 2 and n10 <= 4 then return "минуты" end
            return "минут"
        end
        if hh > 0 and mm > 0 then
            return hh .. " " .. h_word(hh) .. " " .. mm .. " " .. m_word(mm)
        end
        if hh > 0 then return hh .. " " .. h_word(hh) end
        return mm .. " " .. m_word(mm)
    else
        if hh > 0 and mm > 0 then return hh .. "h " .. mm .. "m" end
        if hh > 0 then return hh .. "h" end
        return mm .. "m"
    end
end

-- Suppress unused-warning for y/mo/d — only h/mi/s feed the calc, but having
-- y/mo/d on hand keeps the script easy to extend later.
local _ = y + mo + d

if total < 60 then
    return jarvis.cmd.ok(lang == "ru"
        and "Сегодня ещё ничего не отработано, сэр."
        or  "Nothing tracked yet today, sir.")
end

return jarvis.cmd.ok(lang == "ru"
    and ("Сегодня отработано " .. format_dur(total) .. ".")
    or  ("Today: " .. format_dur(total) .. "."))