local phrase = (jarvis.context.phrase or ""):lower()

local target = "usd"
if phrase:find("евро") or phrase:find("eur") then target = "eur"
elseif phrase:find("юан") or phrase:find("cny") or phrase:find("yuan") then target = "cny"
elseif phrase:find("фунт") or phrase:find("gbp") then target = "gbp"
elseif phrase:find("йен") or phrase:find("jpy") then target = "jpy"
elseif phrase:find("тенге") or phrase:find("kzt") then target = "kzt"
end

local res = jarvis.http.json("https://www.cbr-xml-daily.ru/daily_json.js")
if not res or type(res) ~= "table" or not res.Valute then
    jarvis.system.notify("Курс", "Не получил данные ЦБ")
    jarvis.audio.play_error()
    return { chain = false }
end

local labels = {
    usd = "Доллар",  eur = "Евро",  cny = "Юань",
    gbp = "Фунт",    jpy = "Йена", kzt = "Тенге",
}
local code = target:upper()
local v = res.Valute[code]
if not v then
    jarvis.system.notify("Курс", "Нет данных по " .. code)
    jarvis.audio.play_not_found()
    return { chain = false }
end

local value = v.Value
local prev  = v.Previous or value
local diff  = value - prev
local arrow = diff > 0 and "▲" or (diff < 0 and "▼" or "=")
local nominal = v.Nominal or 1

local title = string.format("%s: %.2f ₽ %s", labels[target] or code, value / nominal, arrow)
local detail = string.format("вчера %.2f, изменение %+.2f", prev / nominal, diff / nominal)

jarvis.system.notify(title, detail)
jarvis.log("info", title .. " | " .. detail)

local say
if diff > 0 then
    say = string.format("%s стоит %.2f рубля, поднялся на %.2f.", labels[target] or code, value / nominal, math.abs(diff) / nominal)
elseif diff < 0 then
    say = string.format("%s стоит %.2f рубля, опустился на %.2f.", labels[target] or code, value / nominal, math.abs(diff) / nominal)
else
    say = string.format("%s стоит %.2f рубля, без изменений.", labels[target] or code, value / nominal)
end

local sapi = say:gsub("'", "''")
local ps = string.format(
    [[Add-Type -AssemblyName System.Speech; $s = New-Object System.Speech.Synthesis.SpeechSynthesizer; foreach ($v in $s.GetInstalledVoices()) { if ($v.VoiceInfo.Culture.TwoLetterISOLanguageName -eq 'ru') { try { $s.SelectVoice($v.VoiceInfo.Name); break } catch {} } } $s.Speak('%s')]],
    sapi
)
jarvis.system.exec(string.format('powershell -NoProfile -Command "%s"', ps:gsub('"', '\\"')))

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