Typing Analytics Logger Script

-- rebind: name=Typing Analytics Logger
-- rebind: description=Track personal typing speed, frequency, and patterns

local cfg = UI.Schema({
    enabled = UI.Toggle(true, { label = "Enable Logging" }),
    auto_save = UI.Toggle(true, { label = "Auto-save Every 100 Keys" }),
})

local stats = {
    total_keys = 0,
    total_time = 0,
    session_start = System.Time(),
    key_counts = {},
    wpm_samples = {},
    last_key_time = System.Time(),
    current_word_chars = 0,
    current_word_start = System.Time(),
}

local function saveStats()
    local filename = "typing_session_" .. os.date("%Y%m%d_%H%M%S") .. ".json"
    local data = {
        total_keys = stats.total_keys,
        total_time_ms = stats.total_time,
        session_duration = System.Time() - stats.session_start,
        key_frequency = stats.key_counts,
        average_wpm = #stats.wpm_samples > 0 and (stats.total_keys / 5) / (#stats.wpm_samples / 60) or 0,
        most_pressed = (function()
            local max_key, max_count = nil, 0
            for key, count in pairs(stats.key_counts) do
                if count > max_count then max_key, max_count = key, count end
            end
            return max_key
        end)(),
        timestamp = os.date("%Y-%m-%d %H:%M:%S"),
    }
    File.WriteJSON(filename, data)
    UI.Notify("Session saved: " .. filename, "success")
    Log.Info("Typing analytics saved")
end

function OnDown(key)
    if not cfg.enabled then return true end

    -- track only printable characters, not modifiers or system keys
    if #key == 1 or key == "Space" or key == "Enter" then
        stats.total_keys = stats.total_keys + 1
        stats.key_counts[key] = (stats.key_counts[key] or 0) + 1

        local now = System.Time()
        local time_since_last = now - stats.last_key_time
        stats.last_key_time = now

        -- WPM calculation: assume word break on space/enter (5 chars = 1 word)
        if key == "Space" or key == "Enter" then
            if stats.current_word_chars > 0 then
                local word_time = now - stats.current_word_start
                table.insert(stats.wpm_samples, word_time)
            end
            stats.current_word_chars = 0
            stats.current_word_start = now
        else
            stats.current_word_chars = stats.current_word_chars + 1
        end

        stats.total_time = stats.total_time + time_since_last

        -- auto-save every 100 keys
        if cfg.auto_save and stats.total_keys % 100 == 0 then
            After(500, function()
                Run(function()
                    saveStats()
                end)
            end)
        end
    end

    return true
end

function OnStop()
    if stats.total_keys > 0 then
        saveStats()
    end
end

function OnBlur()
    if stats.total_keys > 0 and cfg.auto_save then
        Run(function()
            saveStats()
        end)
    end
    stats.session_start = System.Time()
    stats.total_keys = 0
    stats.total_time = 0
    stats.key_counts = {}
    stats.wpm_samples = {}
end