自定义的显示器休眠模式

-- 屏保渐暗模式：进入屏保后 delayBeforeDim 分钟开始降亮度，dimDuration 降到 0
-- 退出屏保（比如按回车唤醒）后恢复原亮度

local brightness = require("hs.brightness")
local caffeinate = require("hs.caffeinate")
local timer = require("hs.timer")

-- 配置参数
local delayBeforeDim = 1 * 60      -- 进入屏保后等待 1 分钟再开始降亮度（秒）
local dimDuration    = 5           -- 从当前亮度降到 0 的总时长（秒）
local steps          = 2           -- 分多少步降完（越大越平滑）
local originalBrightness = nil
local dimTimer = nil
local delayTimer = nil

-- 停止所有计时器并恢复亮度
local function restoreBrightness()
    if delayTimer then
        delayTimer:stop()
        delayTimer = nil
    end
    if dimTimer then
        dimTimer:stop()
        dimTimer = nil
    end
    if originalBrightness then
        brightness.set(originalBrightness)
        originalBrightness = nil
    end
end

-- 开始渐暗
local function startDimming()
    -- 如果已经在渐暗，就不重复
    if dimTimer ~= nil then return end

    originalBrightness = brightness.get()
    if not originalBrightness or originalBrightness <= 0 then
        return
    end

    local currentStep = 0
    local stepInterval = dimDuration / steps
    local stepDelta = originalBrightness / steps

    dimTimer = timer.doEvery(stepInterval, function()
        currentStep = currentStep + 1
        local newValue = originalBrightness - stepDelta * currentStep
        if newValue < 0 then newValue = 0 end
        brightness.set(math.floor(newValue + 0.5))

        if currentStep >= steps then
            dimTimer:stop()
            dimTimer = nil
        end
    end)
end

-- 进入屏保时：先等 delayBeforeDim 分钟，再开始渐暗
local function onScreensaverStart()
    -- 防止重复
    restoreBrightness()

    delayTimer = timer.doAfter(delayBeforeDim, function()
        startDimming()
    end)
end

-- 退出屏保时：立刻恢复亮度
local function onScreensaverStop()
    restoreBrightness()
end

local watcher = caffeinate.watcher.new(function(event)
    if event == caffeinate.watcher.screensaverDidStart then
        -- 进入屏保
        onScreensaverStart()

    elseif event == caffeinate.watcher.screensaverDidStop then
        -- 退出屏保（一般是你按键/移动鼠标触发）
        onScreensaverStop()

    elseif event == caffeinate.watcher.screensDidLock then
        -- 屏幕被锁定（手动锁屏或自动锁屏）
        onScreensaverStart()

    elseif event == caffeinate.watcher.screensDidUnlock then
        -- 解锁成功（输入密码/Touch ID 后）
        onScreensaverStop()

    elseif event == caffeinate.watcher.systemDidWake then
        -- 机器从睡眠中唤醒
        restoreBrightness()

    elseif event == caffeinate.watcher.screensDidWake then
        -- 屏幕从睡眠中唤醒
        restoreBrightness()
    end
end)

watcher:start()