--[[
@module  common_ui
@summary 公共UI组件
@version 1.0
@date    2026.03.05
@author  李一玮
@usage
本文件提供公共UI组件功能，如电量显示等。
]]

local common_ui = {}
local time1_id = nil
local show_charge_info = false  -- 控制显示哪个文本
local switch_counter = 0  -- 计数器，用于控制文本切换频率
local shutdown_msgbox = nil  -- 跟踪关机弹窗状态

-- 在现有标题栏添加电量显示
-- @param title_bar 标题栏容器对象
-- @return battery_label 电量标签对象，用于后续更新
function common_ui.add_battery_display(parent)
    -- 电量图标
    airui.image({
        parent = parent,
        x = 410,
        y = 5,
        w = 40,
        h = 20,
        src = "/luadb/dian3.png",
        zoom = 200,
    })

    -- 电量值标签
    local battery_label = airui.label({
        parent = parent,
        text = "70%",
        x = 445,
        y = 8,
        w = 35,
        h = 20,
        font_size = 14,
        color = 0xFFFFFF,
    })

    -- 信号图标
    airui.image({
        parent = parent,
        x = 355,
        y = 5,
        w = 40,
        h = 20,
        src = "/luadb/4g3.png",
        zoom = 160,
    })

    -- 信号值标签
    local battery_label = airui.label({
        parent = parent,
        text = "4G",
        x = 390,
        y = 8,
        w = 45,
        h = 20,
        font_size = 14,
        color = 0xFFFFFF,
    })

    -- WIFI图标
    airui.image({
        parent = parent,
        x = 330,
        y = 5,
        w = 40,
        h = 20,
        src = "/luadb/wifi3.png",
        zoom = 150,
    })

    return battery_label
end

function common_ui.create_back_button(parent, cleanup_func)
    -- local back_btn = airui.button({
    --     parent = parent,
    --     x = 10,
    --     y = 3,
    --     w = 45,
    --     h = 25,
    --     text = "返回",
    --     on_click = function()
    --         -- 调用当前页面的清理函数
    --         if cleanup_func then
    --             cleanup_func()
    --         end
    --         -- 返回上一页
    --         go_back()
    --     end
    -- })

    local back_img = airui.image({
        parent = parent,
        x = 5,
        y = 4,
        w = 20,
        h = 25,                    
        src = "/luadb/back1.png",
        zoom = 256,
        opacity = 255,
        on_click = function()
            -- 调用当前页面的清理函数
            if cleanup_func then
                cleanup_func()
            end
            -- 返回上一页
            go_back()
        end
    })

    local back_label = airui.label({
        parent = parent,
        text = "返回",
        x = 22,
        y = 9,
        w = 45,
        h = 20,
        font_size = 15,
        color = 0xFFFFFF,
        on_click = function()
            -- 调用当前页面的清理函数
            if cleanup_func then
                cleanup_func()
            end
            -- 返回上一页
            go_back()
        end
    })

    -- local home_btn = airui.button({
    --     parent = parent,
    --     x = 60,
    --     y = 3,
    --     w = 45,
    --     h = 25,
    --     text = "首页",
    --     on_click = function()
    --         if cleanup_func then
    --             cleanup_func()
    --         end
    --         go_home()
    --     end
    -- })

    local home_img = airui.image({
        parent = parent,
        x = 65,
        y = 4,
        w = 20,
        h = 25,                    
        src = "/luadb/home2.png",
        zoom = 140,
        opacity = 255,
        on_click = function()
            if cleanup_func then
                cleanup_func()
            end
            go_home()
        end
    })

    local home_label = airui.label({
        parent = parent,
        text = "首页",
        x = 87,
        y = 9,
        w = 45,
        h = 20,
        font_size = 15,
        color = 0xFFFFFF,
        on_click = function()
            if cleanup_func then
                cleanup_func()
            end
            go_home()
        end
    })


    return back_img

    
end

function common_ui.add_background_png(parent)
    local background_img = airui.image({
        parent = parent,
        x = 0,
        y = 0,
        w = 480,
        h = 290,                    
        src = "/luadb/1.png",
        zoom = 256,
        opacity = 255
    })

    return background_img
end

-- 创建底部信息栏
-- @param main_container 主容器对象
-- @return status_bar 底部信息栏容器对象
function common_ui.create_status_bar(parent)
    -- 底部信息
    local status_bar = airui.container({
        parent = parent,
        x = 0,
        y = 300,
        w = 480,
        h = 20,
        color = 0xDFEAFF,
    })

    local version_charge_msg = airui.label({
        parent = status_bar,
        text = "TSB-3.0 v1.0.0",
        x = 0,
        y = 0,
        w = 180,
        h = 20,
        font_size = 14,
    })

    local shutdown_image = airui.image({
        parent = status_bar,
        x = 422,
        y = 0,
        w = 30,
        h = 20,                    
        src = "/luadb/shutdown.png",
        zoom = 200,
        opacity = 255,
        on_click = function(self)
            common_ui.show_shutdown_confirm(status_bar)
        end
    })

    local shutdwon_label = airui.label({
        parent = status_bar,
        text = "关机",
        x = 445,
        y = 2,
        w = 30,
        h = 18,
        font_size = 14,
        on_click = function(self)
            common_ui.show_shutdown_confirm(status_bar)
        end
    })

    local dynamic_label = airui.label({
        parent = status_bar,
        text = os.date("%Y-%m-%d %H:%M:%S"),
        x = 170,
        y = 0,
        w = 180,
        h = 20,
        font_size = 14,
    })

    -- 先停止已存在的定时器，避免多个定时器同时运行
    if time1_id then
        sys.timerStop(time1_id)
        time1_id = nil
    end

    -- 启动新的定时器
    time1_id = sys.timerLoopStart(function()
        local current_time = os.date("%Y-%m-%d %H:%M:%S")
        -- 检查dynamic_label是否仍然存在
        if dynamic_label then
            dynamic_label:set_text(current_time)
        else
            -- 如果标签不存在，停止定时器
            if time1_id then
                sys.timerStop(time1_id)
                time1_id = nil
            end
        end
        
        -- 每两次定时切换一次文本（即1800ms）
        if version_charge_msg then
            switch_counter = switch_counter + 1
            if switch_counter >= 2 then
                show_charge_info = not show_charge_info  -- 切换状态
                if show_charge_info then
                    version_charge_msg:set_text("充电中。。充电功率：7.5W")
                else
                    version_charge_msg:set_text("TSB-3.0 v1.0.0")
                end
                switch_counter = 0  -- 重置计数器
            end
        end
    end, 900)  -- 每900ms更新一次时间
    
    return status_bar
end

-- 显示关机确认弹窗
-- @param parent 父容器对象
function common_ui.show_shutdown_confirm(parent)
    -- 检查是否已经存在关机弹窗
    if shutdown_msgbox then
        log.info("shutdown", "关机弹窗已存在，不重复创建")
        return
    end
    
    shutdown_msgbox = airui.msgbox({
        title = "系统提示",
        text = "是否确认关机？",
        buttons = { "否", "是" },
        on_action = function(self, label)
            if label == "是" then
                -- 执行关机操作
                log.info("shutdown", "用户确认关机")
                pm.shutdown()
            else
                -- 取消关机操作
                log.info("shutdown", "用户取消关机")
            end
            self:hide()
            -- 重置弹窗状态
            shutdown_msgbox = nil
        end
    })
    shutdown_msgbox:show()
end

-- 清理函数，用于停止定时器
function common_ui.cleanup()
    if time1_id then
        sys.timerStop(time1_id)
        time1_id = nil
    end
end

return common_ui