-- Sum of today's expenses (local calendar day).

local lang = jarvis.context.language
local raw_state = jarvis.state.get("entries") or ""

if raw_state == "" then
    return jarvis.cmd.not_found(lang == "ru"
        and "Сегодня ничего не тратили, сэр."
        or  "No expenses logged today, sir.")
end

local now = jarvis.context.time
local day_start = os.time({
    year = now.year, month = now.month, day = now.day,
    hour = 0, min = 0, sec = 0,
})
local day_end = day_start + 86400

local total = 0
for chunk in raw_state:gmatch("([^|]+)") do
    local ts, am = chunk:match("^(%d+),([%-%d%.]+),")
    ts = tonumber(ts); am = tonumber(am)
    if ts and am and ts >= day_start and ts < day_end then
        total = total + am
    end
end

if total == 0 then
    return jarvis.cmd.ok(lang == "ru"
        and "Сегодня ничего не тратили, сэр."
        or  "Nothing spent today, sir.")
end

return jarvis.cmd.ok(string.format(lang == "ru"
    and "Сегодня потратили %.0f."
    or  "Today's spending: %.0f.", total))