-- "Сколько сейчас Сбер" / "котировка газпром" — query MOEX ISS public API.
local phrase = (jarvis.context.phrase or ""):lower()

-- Common name → ticker map.
local TICKERS = {
    ["сбер"] = "SBER",       ["сбербанк"] = "SBER",
    ["газпром"] = "GAZP",
    ["лукойл"] = "LKOH",
    ["яндекс"] = "YDEX",      ["yandex"] = "YDEX",
    ["вк"] = "VKCO",          ["вконтакте"] = "VKCO",
    ["втб"] = "VTBR",
    ["магнит"] = "MGNT",
    ["мтс"] = "MTSS",
    ["роснефть"] = "ROSN",
    ["новатэк"] = "NVTK",
    ["норникель"] = "GMKN",   ["норильск"] = "GMKN",
    ["полюс"] = "PLZL",
    ["тинькофф"] = "T",       ["тбанк"] = "T",       ["т банк"] = "T",
    ["сургутнефтегаз"] = "SNGS",
    ["мосбиржа"] = "MOEX",    ["биржа"] = "MOEX",
    ["x5"] = "X5",            ["икс пять"] = "X5",
    ["алроса"] = "ALRS",
    ["русал"] = "RUAL",
    ["мечел"] = "MTLR",
    ["фосагро"] = "PHOR",
    ["сегежа"] = "SGZH",
    ["белуга"] = "BELU",
}

-- find ticker
local ticker, ticker_name
for name, tk in pairs(TICKERS) do
    if phrase:find(name, 1, true) then
        ticker = tk
        ticker_name = name
        break
    end
end

-- Allow direct ticker mention "сколько SBER" etc.
if not ticker then
    local maybe = phrase:upper():match("([A-Z][A-Z][A-Z]+)")
    if maybe then ticker = maybe; ticker_name = maybe end
end

if not ticker then
    jarvis.speak("Не понял какую бумагу. Скажите название.")
    jarvis.audio.play_error()
    return { chain = false }
end

local url = string.format(
    "https://iss.moex.com/iss/engines/stock/markets/shares/securities/%s.json?iss.meta=off",
    ticker
)

local data = jarvis.http.json(url)
if not data then
    jarvis.speak("Не получилось получить котировки.")
    jarvis.audio.play_error()
    return { chain = false }
end

-- MOEX ISS returns parallel arrays: columns + data rows. We want marketdata.LAST.
local md = data.marketdata
if not md or not md.columns or not md.data then
    jarvis.speak("Биржа вернула пустой ответ.")
    jarvis.audio.play_error()
    return { chain = false }
end

local cols = md.columns
local rows = md.data

-- find indexes
local idx_last, idx_change, idx_board
for i, c in ipairs(cols) do
    if c == "LAST" then idx_last = i end
    if c == "LASTTOPREVPRICE" then idx_change = i end
    if c == "BOARDID" then idx_board = i end
end

-- pick the TQBR (main board) row if present, else first non-nil LAST
local last, change
for _, row in ipairs(rows) do
    local board = idx_board and row[idx_board]
    if board == "TQBR" and row[idx_last] then
        last = row[idx_last]
        change = idx_change and row[idx_change]
        break
    end
end
if not last then
    for _, row in ipairs(rows) do
        if row[idx_last] then
            last = row[idx_last]
            change = idx_change and row[idx_change]
            break
        end
    end
end

if not last then
    jarvis.speak("По " .. ticker_name .. " сегодня нет торгов.")
    jarvis.audio.play_not_found()
    return { chain = false }
end

local rub = string.format("%.2f", last):gsub("%.", " и ")
local line = string.format("%s — %s рубля.", ticker_name, rub)
if change and tonumber(change) then
    local pct = tonumber(change)
    local sign = pct >= 0 and "плюс" or "минус"
    line = line .. string.format(" Сегодня %s %.2f процента.", sign, math.abs(pct))
end

jarvis.speak(line)
jarvis.audio.play_ok()
return { chain = false }