main.lua

-------  大贝壳 出品 V1.0

local NAME = "DBK_Dashboard"
local VERSION = "v1.0"
local TopValue = 10
local crsf_field = { "Vbat", "Curr", "Hspd", "Capa", "Bat%", "Tesc", "Tmcu", "1RSS", "2RSS", "RQly", "Thr", "Vbec", "ARM", "Gov", "Vcel" }
local TELE_ITEMS = #crsf_field

local LOG_INFO_LEN = 22
local LOG_DATA_LEN = 115

local value_min_max = {}
local field_id = {}
local bank_info = { current = 1, name = "Bank 1" }
local tg_pic_obj
local default_pic_obj

-- 缓存变量
local cached_model_name = ""
local cached_pic_path = ""
local last_audio_time = 0
local led_cache = { last_start_color = 0, last_end_color = 0 }
local log_write_timer = 0

local hold_locked = false
local button_pressed = false

local file_name = ""
local file_path = ""
local file_obj
local log_info = ""
local log_data = {}
local fly_number = 0
local sele_number = 0
local second = { 0, 0, 0 }
local total_second = 0
local hours = 0
local minutes = { 0, 0 }
local seconds = { 0, 0 }
local power_max = { 0, 0 }

local write_en_flag = false
local arm_flag = false
local second_save = 0
local display_log_flag = false
local display_mode = 0

local options = {
    { "SquareColor", COLOR, WHITE },
    { "BackgroundColor", COLOR, BLACK },
    { "ValueColor", COLOR, GREEN },
    { "DispLED", BOOL, 0 },
    { "BankSwitch", SOURCE, 0 },
    { "HoldSwitch", SWITCH, 0 },
    { "ArmSwitch", SWITCH, 0 }
}

local radioH = 0
local radio_name, version = getVersion()

if version and string.find(version, "tx15") then
    radioH = 30
elseif version and string.find(version, "tx16s") then
    radioH = 0
else
    radioH = 0
end

-- Screen auto-scaling: base design is 480x272, scales up to any resolution
local BASE_W = 480
local BASE_H = 272
local scaleX = (LCD_W or BASE_W) / BASE_W
local scaleY = (LCD_H or BASE_H) / BASE_H
local function sx(v) return math.floor(v * scaleX + 0.5) end
local function sy(v) return math.floor(v * scaleY + 0.5) end
radioH = sy(radioH)
TopValue = sy(TopValue)



local function create(zone, options)
    local widget = {
        zone = zone,
        options = options
    }

    for i = 1, TELE_ITEMS do
        value_min_max[i] = { 0, 0, 0 }
        field_id[i] = { 0, false }
    end

    sele_number = 1
    display_log_flag = false
    display_mode = 0

    -- 初始化缓存的模型名称
    cached_model_name = ""

    for k, v in pairs(crsf_field) do
        local field_info = getFieldInfo(v)
        if field_info ~= nil then
            field_id[k][1] = field_info.id
            field_id[k][2] = true
        else
            field_id[k][1] = 0
            field_id[k][2] = false
        end
    end

    for i = 1, #second do
        second[i] = 0
    end
    total_second = 0

    write_en_flag = false
    arm_flag = false

    -- 先使用默认文件名，在refresh中动态更新
    file_name = "[DBK_Dashboard]" ..
        string.format("%d", getDateTime().year) ..
        string.format("%02d", getDateTime().mon) ..
        string.format("%02d", getDateTime().day) .. ".log"
    file_path = "/WIDGETS/DBK_Dashboard/logs/" .. file_name

    local file_info = fstat(file_path)
    local read_count = 1
    if file_info ~= nil then
        if file_info.size > 0 then
            file_obj = io.open(file_path, "r")
            log_info = io.read(file_obj, LOG_INFO_LEN + 1)
            while true do
                log_data[read_count] = io.read(file_obj, LOG_DATA_LEN + 1)
                if #log_data[read_count] == 0 then
                    break
                else
                    read_count = read_count + 1
                end
            end
            io.close(file_obj)

            hours = string.sub(log_info, 12, 13)
            minutes[2] = string.sub(log_info, 15, 16)
            seconds[2] = string.sub(log_info, 18, 19)

            total_second = tonumber(string.sub(log_info, 12, 13)) * 3600
            total_second = total_second + tonumber(string.sub(log_info, 15, 16)) * 60
            total_second = total_second + tonumber(string.sub(log_info, 18, 19))
        end
    else
        -- 不创建默认文件，设置默认的log_info
        log_info =
            string.format("%d", getDateTime().year) .. '/' ..
            string.format("%02d", getDateTime().mon) .. '/' ..
            string.format("%02d", getDateTime().day) .. '|' ..
            "00:00:00" .. '|' ..
            "00\n"
    end

    local str_temp = string.sub(log_info, 21, 23)
    if tonumber(str_temp) ~= nil then
        fly_number = tonumber(str_temp)
    end

    if fly_number == 0 then
        fly_number = 1
        sele_number = 1
        log_data[1] = "01|12:34:56|05:30|1850|025|2400|125.5|03500|25.2|22.8|+055|+025|+040|+020|-032|-072|-028|-065|100|095|080|12.6|11.8\n"
    end

    -- 只在create时加载默认图片
    default_pic_obj = Bitmap.open("/WIDGETS/DBK_Dashboard/default.png")

    return widget
end

local function update(widget, options)
    widget.options = options
end

local function background(widget)
end

local function get_bank_info(widget)
    if widget.options.BankSwitch ~= 0 then
        local bank_value = getValue(widget.options.BankSwitch) or 0
        local bank_num = 1
        if bank_value < -300 then
            bank_num = 1
        elseif bank_value > 300 then
            bank_num = 3
        else
            bank_num = 2
        end
        bank_info.current = bank_num
        return
    end

    local fm_value = getValue("FM")
    if fm_value ~= nil then
        local bank_num = math.floor(fm_value) + 1
        bank_info.current = math.max(1, math.min(6, bank_num))
        return
    end

    bank_info.current = 1
end

local function draw_rounded_rectangle(xs, ys, w, h, r, color)
    lcd.drawArc(xs + r, ys + r, r, 270, 360, color)
    lcd.drawArc(xs + r, ys + h - r, r, 180, 270, color)
    lcd.drawArc(xs + w - r, ys + r, r, 0, 90, color)
    lcd.drawArc(xs + w - r, ys + h - r, r, 90, 180, color)
    lcd.drawLine(xs + r, ys, xs + w - r, ys, SOLID, color)
    lcd.drawLine(xs + r, ys + h, xs + w - r, ys + h, SOLID, color)
    lcd.drawLine(xs, ys + r, xs, ys + h - r, SOLID, color)
    lcd.drawLine(xs + w, ys + r, xs + w, ys + h - r, SOLID, color)
end

local function fuel_percentage(xs, ys, capa, number, text_color)
    local color = lcd.RGB(255 - number * 2.55, number * 2.55, 0)
    if number ~= 0 and number ~= 100 then
        lcd.drawAnnulus(xs, ys, sx(45), sx(70), (100 - number) * 3.6, 360, color)
    end
    if number == 100 then
        lcd.drawAnnulus(xs, ys, sx(45), sx(70), 1, 360, color)
        lcd.drawAnnulus(xs, ys, sx(45), sx(70), -5, 5, color)
    end
    lcd.drawText(xs + sx(2), ys - sy(10), string.format("%d%%", number), CENTER + VCENTER + DBLSIZE + text_color)
    lcd.drawText(xs, ys + sy(15), string.format("%dmAh", capa), CENTER + VCENTER + text_color)
end

local function throttle_percentage_bar(xs, ys, thr_value, border_color, text_color)
    local bar_width = sx(150)
    local bar_height = sy(20)
    local fill_width = math.floor(bar_width * thr_value / 100)
    thr_value = math.max(0, math.min(100, thr_value))
    local color = lcd.RGB(thr_value * 2.55, 0, 255 - thr_value * 2.55)
    draw_rounded_rectangle(xs, ys, bar_width, bar_height, sx(8), border_color)
    if thr_value > 0 then
        if fill_width > sx(6) then
            lcd.drawFilledRectangle(xs + sx(2), ys + sy(2), fill_width - sx(4), bar_height - sy(4), color)
        end
    end
    lcd.drawText(xs + bar_width / 2, ys + bar_height / 2, string.format("%d%%", thr_value), CENTER + VCENTER + SMLSIZE + text_color)
end


local function rqly_signal_bars(xs, ys, rqly_percent, default_color)
    local block_size = sx(5)
    local block_spacing = sx(7)
    rqly_percent = math.max(0, math.min(100, rqly_percent))
    local active_blocks = math.floor((rqly_percent + 19) / 20)
    for i = 1, 5 do
        local block_x = xs + (i - 1) * block_spacing
        local block_y = ys
        local block_color = default_color
        if rqly_percent > 0 and i <= active_blocks then
            if i == 1 then
                block_color = RED
            elseif i == 2 then
                block_color = ORANGE
            elseif i == 3 then
                block_color = YELLOW
            elseif i == 4 then
                block_color = lcd.RGB(173, 255, 47)
            else
                block_color = GREEN
            end
        end
        lcd.drawFilledRectangle(block_x, block_y, block_size, block_size, block_color)
    end
end

local function draw_log_content(xs, ys, title, message, flags)
    local extract = {}
    local value
    local index, length = 4, 8
    extract[1] = string.sub(message, index, index + length - 1)
    index = 13
    length = 5
    extract[2] = string.sub(message, index, index + length - 1)
    for t = 1, 20 do
        index = index + length + 1
        if t == 2 or t == 16 or t == 17 or t == 18 then
            length = 3
        elseif t == 4 or t == 5 then
            length = 5
        else
            length = 4
        end
        value = tonumber(string.sub(message, index, index + length - 1))
        if t == 4 or t == 6 or t == 7 or t == 19 or t == 20 then
            extract[t + 2] = string.format("%.1f", value)
        else
            extract[t + 2] = string.format("%d", value)
        end
    end
    draw_rounded_rectangle(xs, ys, sx(400) - 1, sy(175) - 1, sx(2), flags)
    lcd.drawLine(xs, ys + sy(28), xs + sx(400) - 2, ys + sy(28), SOLID, flags)
    lcd.drawLine(xs + sx(200), ys + sy(28), xs + sx(200), ys + sy(175) - 2, SOLID, flags)
    lcd.drawText(xs + sx(5), ys + sy(5), title, flags)
    lcd.drawText(xs + sx(5), ys + sy(30),
        "Time: " .. extract[2] .. '\n' ..
        "Capa: " .. extract[3] .. "[mAh]\n" ..
        "Fuel: " .. extract[4] .. "[%]\n" ..
        "HSpd: " .. extract[5] .. "[rpm]\n" ..
        "Throttle: " .. extract[20] .. "[%]\n" ..
        "Current: " .. extract[6] .. "[A]\n" ..
        "Power: " .. extract[7] .. "[W]"
        , flags)
    lcd.drawText(xs + sx(205), ys + sy(30),
        "Battery: " .. extract[8] .. " -> " .. extract[9] .. "[V]\n" ..
        "BEC: " .. extract[22] .. " -> " .. extract[21] .. "[V]\n" ..
        "ESC: " .. extract[11] .. " -> " .. extract[10] .. "[°C]\n" ..
        "MCU: " .. extract[13] .. " -> " .. extract[12] .. "[°C]\n" ..
        crsf_field[8] .. ": " .. extract[14] .. " -> " .. extract[15] .. "[dB]\n" ..
        crsf_field[9] .. ": " .. extract[16] .. " -> " .. extract[17] .. "[dB]\n" ..
        crsf_field[10] .. ": " .. extract[18] .. " -> " .. extract[19] .. "[%]"
        , flags)
end

-- 音频播放辅助函数
local function safe_play_tone(freq, length, pause, flags, freqIncr)
    local current_time = getTime()
    if current_time - last_audio_time > 10 then -- 防止音频重叠，至少间隔100ms
        last_audio_time = current_time
        playTone(freq, length, pause, flags or PLAY_NOW, freqIncr)
    end
end

local function refresh(widget, event, touchState)
    local screen_width =  LCD_W or widget.zone.w
    local screen_height =  LCD_H or widget.zone.h
    if event == nil then
    elseif event ~= 0 then
        if touchState then
            if event == EVT_TOUCH_FIRST then
                safe_play_tone(100, 50, 50)
            elseif event == EVT_TOUCH_TAP then
                safe_play_tone(200, 50, 50)
            end
        end
        if event == EVT_VIRTUAL_NEXT_PAGE then
            display_mode = (display_mode + 1) % 3
            display_log_flag = (display_mode == 1)
            safe_play_tone(200, 100, 100)
        elseif event == EVT_VIRTUAL_PREV_PAGE then
            if display_mode == 0 then
                display_mode = 2
            elseif display_mode == 1 then
                display_mode = 0
            elseif display_mode == 2 then
                display_mode = 1
                display_log_flag = false
            end
            safe_play_tone(200, 100, 100)
        elseif event == EVT_VIRTUAL_NEXT then
            if display_mode == 1 and not display_log_flag then
                if fly_number > 0 then
                    if sele_number < fly_number then
                        sele_number = sele_number + 1
                    else
                        sele_number = 1
                    end
                    safe_play_tone(200, 50, 100)
                end
            end
        elseif event == EVT_VIRTUAL_PREV then
            if display_mode == 1 and not display_log_flag then
                if fly_number > 0 then
                    if sele_number > 1 then
                        sele_number = sele_number - 1
                    else
                        sele_number = fly_number
                    end
                    safe_play_tone(200, 50, 100)
                end
            end
        elseif event == EVT_VIRTUAL_ENTER then
            if display_mode == 1 then
                if fly_number > 0 and sele_number > 0 and sele_number <= fly_number and log_data[sele_number] then
                    display_log_flag = not display_log_flag
                    safe_play_tone(100, 200, 100, PLAY_NOW, 10)
                else
                    safe_play_tone(3000, 100, 50)
                end
            else
                safe_play_tone(600, 50, 50)
            end
        elseif event == EVT_VIRTUAL_EXIT then
            display_mode = 0
            display_log_flag = false
            safe_play_tone(10000, 200, 100, PLAY_NOW, -60)
        end
    end
    lcd.setColor(CUSTOM_COLOR, widget.options.BackgroundColor)
    local bg_color = lcd.getColor(CUSTOM_COLOR)
    lcd.setColor(CUSTOM_COLOR, widget.options.SquareColor)
    local square_color = lcd.getColor(CUSTOM_COLOR)
    lcd.setColor(CUSTOM_COLOR, widget.options.ValueColor)
    local value_color = lcd.getColor(CUSTOM_COLOR)

    -- LED控制逻辑：处理开启和关闭
    if LED_STRIP_LENGTH and LED_STRIP_LENGTH > 0 then
        if widget.options.DispLED == 1 then
            -- LED开关开启
            local start_color = widget.options.SquareColor
            local end_color = widget.options.ValueColor

            if led_cache.last_start_color ~= start_color or led_cache.last_end_color ~= end_color then
                led_cache.last_start_color = start_color
                led_cache.last_end_color = end_color

                local start_rgb565 = math.floor(start_color / 65536)
                local start_red = math.floor(start_rgb565 / 2048) * 8
                local start_green = (math.floor(start_rgb565 / 32) % 64) * 4
                local start_blue = (start_rgb565 % 32) * 8
                local end_rgb565 = math.floor(end_color / 65536)
                local end_red = math.floor(end_rgb565 / 2048) * 8
                local end_green = (math.floor(end_rgb565 / 32) % 64) * 4
                local end_blue = (end_rgb565 % 32) * 8

                for i = 0, LED_STRIP_LENGTH - 1 do
                    local ratio = 0.5
                    local ratio = (i % 2) / 1
                    local red = start_red + (end_red - start_red) * ratio
                    local green = start_green + (end_green - start_green) * ratio
                    local blue = start_blue + (end_blue - start_blue) * ratio
                    setRGBLedColor(i, math.floor(red), math.floor(green), math.floor(blue))
                end
                applyRGBLedColors()
            end
        else
            -- LED开关关闭，关闭所有LED
            if led_cache.last_start_color ~= 0 or led_cache.last_end_color ~= 0 then
                led_cache.last_start_color = 0
                led_cache.last_end_color = 0

                for i = 0, LED_STRIP_LENGTH - 1 do
                    setRGBLedColor(i, 0, 0, 0)  -- 设置为黑色（关闭）
                end
                applyRGBLedColors()
            end
        end
    end
    lcd.drawFilledRectangle(0, 0, screen_width, screen_height, bg_color)
    local title_height = sy(25)
    local current_time = getDateTime()
    local time_str = string.format("%02d:%02d:%02d", current_time.hour, current_time.min, current_time.sec)
    lcd.drawText(sx(385), sy(250)+radioH, time_str, BOLD + square_color)

    -- 检查模型名称是否改变，只在改变时重新加载图片和更新文件名
    local current_model_name = model.getInfo().name
    if cached_model_name ~= current_model_name then
        cached_model_name = current_model_name
        cached_pic_path = "/WIDGETS/DBK_Dashboard/"..string.sub(cached_model_name, 2)..".png"

        -- 更新文件名为模型名称（只在模型名称变化时执行一次）
        if current_model_name and current_model_name ~= "" then
            -- 清理文件名中的无效字符
            local safe_model_name = string.gsub(current_model_name, "[<>:\"/\\|?*]", "")
            local new_file_name = "[".. safe_model_name .. "]" ..
                string.format("%d", getDateTime().year) ..
                string.format("%02d", getDateTime().mon) ..
                string.format("%02d", getDateTime().day) .. ".log"
            local new_file_path = "/WIDGETS/DBK_Dashboard/logs/" .. new_file_name

            -- 只有文件名真的改变了才更新
            if new_file_path ~= file_path then
                file_name = new_file_name
                file_path = new_file_path
            end
        end

        if fstat(cached_pic_path) then
            tg_pic_obj = Bitmap.open(cached_pic_path)
        else
            tg_pic_obj = nil
        end
    end

    lcd.drawText(sx(255), sy(250)+radioH, cached_model_name, BOLD + value_color)

    local tx_voltage = getValue("tx-voltage") or getValue("TxBt") or 0
    local tx_battery_str = string.format("%.1fV", tx_voltage)

    local tx_color = value_color
    if tx_voltage < 6.5 then
        tx_color = RED
    elseif tx_voltage >= 6.5 and tx_voltage <= 7.0 then
        tx_color = YELLOW
    end

    lcd.drawText(sx(400), sy(13), "Tx", BOLD + square_color)
    lcd.drawText(sx(420), sy(13), tx_battery_str, BOLD + tx_color)
    lcd.drawText(sx(30), title_height / 2 + TopValue, "Bank" , CENTER + VCENTER + square_color)
    lcd.drawText(sx(100), title_height / 2 + TopValue, "HOLD" , CENTER + VCENTER + square_color)
    lcd.drawText(sx(170), title_height / 2 + TopValue, "RSSI" , CENTER + VCENTER + square_color)
    get_bank_info(widget)

    local bank_color = square_color
    if bank_info.current == 1 then
        bank_color = lcd.RGB(0, 100, 255)
    elseif bank_info.current == 2 then
        bank_color = lcd.RGB(255, 165, 0)
    elseif bank_info.current == 3 then
        bank_color = lcd.RGB(255, 255, 0)
    end
    lcd.drawText(sx(20), sy(35)+TopValue, tostring(bank_info.current), CENTER + VCENTER + BOLD + MIDSIZE + bank_color)

    local arm_status = (field_id[13][2] and value_min_max[13][1]) or 0
    local gov_status = (field_id[14][2] and value_min_max[14][1]) or 0

    local arm_switch_active = false
    if widget.options.ArmSwitch ~= 0 then
        local switch_value = getSwitchValue(widget.options.ArmSwitch)
        if switch_value and switch_value ~= 0 and switch_value ~= false then
            arm_switch_active = true
        else
            arm_switch_active = false
        end
    end

    local is_armed = false
    if field_id[13][2] then

        is_armed = (arm_status == 1 or arm_status == 3)
    else

        is_armed = arm_switch_active
    end

    local gov_state_names = { "OFF", "IDLE", "SPOOLUP", "RECOVERY", "ACTIVE", "THR-OFF", "LOST-HS", "AUTOROT", "BAILOUT" }
    if is_armed then
        lcd.drawText(sx(280), sy(13)+TopValue, "GOV:", CENTER + VCENTER + square_color)
        if field_id[14][2] then
            local gov_name = gov_state_names[gov_status + 1] or "UNK"
            if gov_name == "SPOOLUP" then
                lcd.drawText(sx(340), sy(12)+TopValue, gov_name, CENTER + VCENTER +  value_color)
            else
                lcd.drawText(sx(320), sy(12)+TopValue, gov_name, CENTER + VCENTER +  value_color)
            end
        else
            lcd.drawText(sx(340), sy(12)+TopValue, "ARMED", CENTER + VCENTER +  GREEN)
        end
    else
        lcd.drawText(sx(280), sy(13)+TopValue, "ARM:", CENTER + VCENTER + square_color)
        if field_id[13][2] then
            lcd.drawText(sx(345), sy(15)+TopValue, "DISARMED", CENTER + VCENTER +   RED)
        elseif widget.options.ArmSwitch ~= 0 then
            lcd.drawText(sx(345), sy(15)+TopValue, "DISARMED", CENTER + VCENTER +   RED)
        else
            lcd.drawText(sx(345), sy(15)+TopValue, "NO TELE", CENTER + VCENTER +   BLINK + RED)
        end
    end


    local hold_active = false
    if widget.options.HoldSwitch ~= 0 then
        local switch_value = getSwitchValue(widget.options.HoldSwitch)
        if switch_value and switch_value ~= 0 and switch_value ~= false then
            hold_active = true
        else
            hold_active = false
        end
    end

    local hold_status = hold_active and "On" or "Off"
    local hold_color = hold_active and GREEN or RED
    lcd.drawText(sx(97), sy(35)+TopValue, hold_status, CENTER + VCENTER + MIDSIZE + hold_color)

    for k = 1, TELE_ITEMS do
        if field_id[k][2] then
            local get_value = getValue(field_id[k][1])
            value_min_max[k][1] = get_value
            if not hold_active then
                if get_value > value_min_max[k][2] then
                    value_min_max[k][2] = get_value
                elseif get_value < value_min_max[k][3] then
                    value_min_max[k][3] = get_value
                end
            end
        end
    end

    if is_armed then
        if arm_flag == false then

            arm_flag = true

            for s = 1, TELE_ITEMS do
                if field_id[s][2] then
                    value_min_max[s][2] = value_min_max[s][1]
                    value_min_max[s][3] = value_min_max[s][1]
                end
            end
            second[1] = 0
            power_max[1] = 0
            power_max[2] = 0
            write_en_flag = false
        end
    else
        if arm_flag then

            arm_flag = false
            write_en_flag = true
        end
    end

    power_max[2] = math.min(math.floor(value_min_max[1][1] * value_min_max[2][1]), 99999)
    if power_max[1] < power_max[2] then
        power_max[1] = power_max[2]
    end

    second[3] = getRtcTime()
    if second[2] ~= second[3] then
        second[2] = second[3]
        if arm_flag then
            second[1] = second[1] + 1
            total_second = total_second + 1
        end
    end

    minutes[1] = string.format("%02d", math.floor(second[1] % 3600 / 60))
    seconds[1] = string.format("%02d", second[1] % 3600 % 60)
    hours = string.format("%02d", math.floor(total_second / 3600))
    minutes[2] = string.format("%02d", math.floor(total_second % 3600 / 60))
    seconds[2] = string.format("%02d", total_second % 3600 % 60)

    -- 优化日志写入：每5秒写入一次，避免频繁I/O
    log_write_timer = log_write_timer + 1
    if write_en_flag and fly_number < 57 and second[1] > 30 and log_write_timer >= 250 then -- 约5秒(假设50fps)
        log_write_timer = 0
        fly_number = fly_number + 1

        -- 强制使用模型名称，如果获取不到就不写入
        local current_model_name = model.getInfo().name
        if not current_model_name or current_model_name == "" then
            -- 如果没有模型名称，跳过写入
            write_en_flag = false
            return
        end

        -- 使用模型名称创建文件名
        local safe_model_name = string.gsub(current_model_name, "[<>:\"/\\|?*]", "")
        write_en_flag = true
        -- 如果模型名称包含 BK_Dashboard，不写文件
        if string.find(safe_model_name, "DBK_Dashboard") then
            write_en_flag = false
        end

        if write_en_flag then
            file_name = "[".. safe_model_name .."]" ..
                string.format("%d", getDateTime().year) ..
                string.format("%02d", getDateTime().mon) ..
                string.format("%02d", getDateTime().day) .. ".log"
            file_path = "/WIDGETS/DBK_Dashboard/logs/" .. file_name

            -- 检查文件是否存在
            local existing_file_info = fstat(file_path)
            if existing_file_info and existing_file_info.size > 0 then
                -- 文件存在，需要读取所有数据，更新记录数，然后重写整个文件
                local temp_file_obj = io.open(file_path, "r")
                local existing_log_data = {}
                local existing_log_info = ""
                local existing_fly_count = 0

                if temp_file_obj then
                    existing_log_info = io.read(temp_file_obj, LOG_INFO_LEN + 1)
                    if existing_log_info and string.len(existing_log_info) >= 23 then
                        local str_temp = string.sub(existing_log_info, 21, 23)
                        if tonumber(str_temp) ~= nil then
                            existing_fly_count = tonumber(str_temp)
                        end
                    end

                    -- 读取所有现有记录
                    local read_count = 1
                    while true do
                        local data = io.read(temp_file_obj, LOG_DATA_LEN + 1)
                        if #data == 0 then
                            break
                        else
                            existing_log_data[read_count] = data
                            read_count = read_count + 1
                        end
                    end
                    io.close(temp_file_obj)
                end

                -- 更新飞行记录数
                fly_number = existing_fly_count + 1

                -- 重写整个文件
                file_obj = io.open(file_path, "w")
                if not file_obj then
                    write_en_flag = false
                    return
                end

                -- 写入更新后的头部信息
                log_info =
                    string.format("%d", getDateTime().year) .. '/' ..
                    string.format("%02d", getDateTime().mon) .. '/' ..
                    string.format("%02d", getDateTime().day) .. '|' ..
                    hours .. ':' .. minutes[2] .. ':' .. seconds[2] .. '|' ..
                    string.format("%02d", fly_number) .. "\n"
                io.write(file_obj, log_info)

                -- 写入所有现有记录
                for i = 1, existing_fly_count do
                    if existing_log_data[i] then
                        io.write(file_obj, existing_log_data[i])
                    end
                end

                -- 写入新记录
                log_data[fly_number] =
                    string.format("%02d", fly_number) .. '|' ..
                    string.format("%02d", getDateTime().hour) .. ':' ..
                    string.format("%02d", getDateTime().min) .. ':' ..
                    string.format("%02d", getDateTime().sec) .. '|' ..
                    minutes[1] .. ':' .. seconds[1] .. '|' ..
                    string.format("%04d", math.max(0, value_min_max[4][1] - value_min_max[4][3])) .. '|' ..
                    string.format("%03d", math.max(0, value_min_max[5][2] - value_min_max[5][1])) .. '|' ..
                    string.format("%04d", value_min_max[3][2]) .. '|' ..
                    string.format("%05.1f", value_min_max[2][2]) .. '|' ..
                    string.format("%05d", power_max[1]) .. '|' ..
                    string.format("%04.1f", value_min_max[1][2]) .. '|' ..
                    string.format("%04.1f", value_min_max[1][3]) .. '|' ..
                    string.format("%+04d", value_min_max[6][2]) .. '|' ..
                    string.format("%+04d", value_min_max[6][3]) .. '|' ..
                    string.format("%+04d", value_min_max[7][2]) .. '|' ..
                    string.format("%+04d", value_min_max[7][3]) .. "|" ..
                    string.format("%+04d", value_min_max[8][2]) .. '|' ..
                    string.format("%+04d", value_min_max[8][3]) .. '|' ..
                    string.format("%+04d", value_min_max[9][2]) .. '|' ..
                    string.format("%+04d", value_min_max[9][3]) .. '|' ..
                    string.format("%03d", value_min_max[10][2]) .. '|' ..
                    string.format("%03d", value_min_max[10][3]) .. '|' ..
                    string.format("%03d", value_min_max[11][2]) .. '|' ..
                    string.format("%04.1f", value_min_max[12][2]) .. '|' ..
                    string.format("%04.1f", value_min_max[12][3]) .. "\n"

                io.write(file_obj, log_data[fly_number])
            else
                -- 文件不存在，创建新文件
                file_obj = io.open(file_path, "w")
                if not file_obj then
                    write_en_flag = false
                    return
                end

                log_info =
                    string.format("%d", getDateTime().year) .. '/' ..
                    string.format("%02d", getDateTime().mon) .. '/' ..
                    string.format("%02d", getDateTime().day) .. '|' ..
                    hours .. ':' .. minutes[2] .. ':' .. seconds[2] .. '|' ..
                    string.format("%02d", fly_number) .. "\n"
                io.write(file_obj, log_info)

                for w = 1, fly_number - 1 do
                    io.write(file_obj, log_data[w])
                end

                log_data[fly_number] =
                    string.format("%02d", fly_number) .. '|' ..
                    string.format("%02d", getDateTime().hour) .. ':' ..
                    string.format("%02d", getDateTime().min) .. ':' ..
                    string.format("%02d", getDateTime().sec) .. '|' ..
                    minutes[1] .. ':' .. seconds[1] .. '|' ..
                    string.format("%04d", math.max(0, value_min_max[4][1] - value_min_max[4][3])) .. '|' ..
                    string.format("%03d", math.max(0, value_min_max[5][2] - value_min_max[5][1])) .. '|' ..
                    string.format("%04d", value_min_max[3][2]) .. '|' ..
                    string.format("%05.1f", value_min_max[2][2]) .. '|' ..
                    string.format("%05d", power_max[1]) .. '|' ..
                    string.format("%04.1f", value_min_max[1][2]) .. '|' ..
                    string.format("%04.1f", value_min_max[1][3]) .. '|' ..
                    string.format("%+04d", value_min_max[6][2]) .. '|' ..
                    string.format("%+04d", value_min_max[6][3]) .. '|' ..
                    string.format("%+04d", value_min_max[7][2]) .. '|' ..
                    string.format("%+04d", value_min_max[7][3]) .. "|" ..
                    string.format("%+04d", value_min_max[8][2]) .. '|' ..
                    string.format("%+04d", value_min_max[8][3]) .. '|' ..
                    string.format("%+04d", value_min_max[9][2]) .. '|' ..
                    string.format("%+04d", value_min_max[9][3]) .. '|' ..
                    string.format("%03d", value_min_max[10][2]) .. '|' ..
                    string.format("%03d", value_min_max[10][3]) .. '|' ..
                    string.format("%03d", value_min_max[11][2]) .. '|' ..
                    string.format("%04.1f", value_min_max[12][2]) .. '|' ..
                    string.format("%04.1f", value_min_max[12][3]) .. "\n"

                io.write(file_obj, log_data[fly_number])
            end
            io.close(file_obj)
            write_en_flag = false
        end
    end

    local battery_voltage = (field_id[1][2] and value_min_max[1][1]) or 0
    lcd.drawText(sx(179), sy(75)+TopValue, "Volt" , CENTER + VCENTER + square_color)
    local battery_voltage_str = string.format("%.2fv", battery_voltage)
     if battery_voltage == 0 then
        lcd.drawText(sx(195), sy(95)+TopValue, battery_voltage_str, CENTER + VCENTER + MIDSIZE + value_color)
     else
        lcd.drawText(sx(200), sy(95)+TopValue, battery_voltage_str, CENTER + VCENTER + MIDSIZE + value_color)
     end

    lcd.drawText(sx(180), sy(125)+TopValue, "Vcel" , CENTER + VCENTER + square_color)
    local vcel_voltage = (field_id[15][2] and value_min_max[15][1]) or 0
    local vcel_voltage_str = "0.00v"
    if vcel_voltage > 0 then
        vcel_voltage_str = string.format("%.2fv", vcel_voltage)
    end
    lcd.drawText(sx(195), sy(145)+TopValue, vcel_voltage_str, CENTER + VCENTER + MIDSIZE + value_color)
    lcd.drawText(sx(179), sy(175)+TopValue, "Bec" , CENTER + VCENTER + square_color)
    local bec_voltage = (field_id[12][2] and value_min_max[12][1]) or 0
    local bec_voltage_str = "0.00v"
    if bec_voltage > 0 then
        bec_voltage_str = string.format(bec_voltage < 10 and "%.2fv" or "%.1fv", bec_voltage)
    end
    lcd.drawText(sx(195), sy(198)+TopValue, bec_voltage_str, CENTER + VCENTER + MIDSIZE + value_color)

    local battery_percent = (field_id[5][2] and value_min_max[5][1]) or 0
    local battery_capacity = (field_id[4][2] and value_min_max[4][1]) or 0
    fuel_percentage(sx(80), sy(150), battery_capacity, battery_percent, value_color)
    lcd.drawText(sx(280), sy(128), "Time" , CENTER + VCENTER + square_color)
    local flight_time_str = string.format("%s:%s", minutes[1], seconds[1])
    lcd.drawText(sx(340), sy(128), flight_time_str, CENTER + VCENTER + MIDSIZE + value_color)

    -- 统计当天这个模型的飞行记录数量
    local flight_count = 0
    local current_model_name = model.getInfo().name
    if current_model_name and current_model_name ~= "" then
        local safe_model_name = string.gsub(current_model_name, "[<>:\"/\\|?*]", "")
        local target_file_name = "[".. safe_model_name .."]" ..
            string.format("%d", getDateTime().year) ..
            string.format("%02d", getDateTime().mon) ..
            string.format("%02d", getDateTime().day) .. ".log"
        local target_file_path = "/WIDGETS/DBK_Dashboard/logs/" .. target_file_name

        local file_info = fstat(target_file_path)
        if file_info ~= nil and file_info.size > 0 then
            local temp_file_obj = io.open(target_file_path, "r")
            if temp_file_obj then
                local temp_log_info = io.read(temp_file_obj, LOG_INFO_LEN + 1)
                if temp_log_info and string.len(temp_log_info) >= 23 then
                    local str_temp = string.sub(temp_log_info, 21, 23)
                    if tonumber(str_temp) ~= nil then
                        flight_count = tonumber(str_temp)
                    end
                end
                io.close(temp_file_obj)
            end
        end
    end

    lcd.drawText(sx(400), sy(128), flight_count, CENTER + VCENTER + MIDSIZE + value_color)


    local throttle_percent = (field_id[11][2] and value_min_max[11][1]) or 0
    throttle_percentage_bar(sx(80), sy(250)+radioH, throttle_percent, value_color, value_color)
    lcd.drawText(sx(40), sy(260)+radioH, "Throttle" , CENTER + VCENTER + square_color)
    local rpm_value = (field_id[3][2] and value_min_max[3][1]) or 0
    local rpm_str = "0"
    if rpm_value > 0 then
        rpm_str = string.format("%d", rpm_value)
    end
    lcd.drawText(sx(335), sy(65)+TopValue, rpm_str, CENTER + VCENTER + DBLSIZE + BOLD + value_color)
    lcd.drawText(sx(430), sy(78)+TopValue, "Rpm" , CENTER + VCENTER + square_color)
    lcd.drawFilledRectangle(sx(260), sy(105), sx(190), 1, square_color)

    local rqly_percent = (field_id[10][2] and value_min_max[10][1]) or 0
    rqly_signal_bars(sx(200), sy(10)+TopValue, rqly_percent, WHITE)

    if rqly_percent > 0 then
        lcd.drawText(sx(175), sy(33)+TopValue, string.format("%ddB", rqly_percent), CENTER + VCENTER  + value_color)
    else
        lcd.drawText(sx(165), sy(33)+TopValue, "---", CENTER + VCENTER + MIDSIZE + RED)
    end

    if tg_pic_obj then
        if version and string.find(version, "tx15") then
             lcd.drawBitmap(tg_pic_obj, sx(250), sy(135)+radioH)
        else
             lcd.drawBitmap(tg_pic_obj, sx(250), sy(150)+radioH)
        end
    else
        if default_pic_obj then
            lcd.drawBitmap(default_pic_obj, sx(250), sy(135)+radioH)
        end
    end

    if version and string.find(version, "tx15") then

       local current_value = (field_id[2][2] and value_min_max[2][1]) or 0
       local current_str = "0.0A"
       if current_value > 0 then
           current_str = string.format("%.1fA", current_value)
       end
       lcd.drawText(sx(12), sy(240)+TopValue, "Current", BOLD +  square_color)
       lcd.drawText(sx(75), sy(240)+TopValue, current_str, BOLD +  value_color)

       local power_value = battery_voltage * current_value
       local power_str = "0.0W"
       if power_value > 0 then
           if power_value >= 1000 then
               power_str = string.format("%.1fkW", power_value / 1000)
           else
               power_str = string.format("%.0fW", power_value)
           end
       end
       lcd.drawText(sx(125), sy(240)+TopValue, "Power", BOLD +  square_color)
       lcd.drawText(sx(180), sy(240)+TopValue, power_str, BOLD +  value_color)
    end


end
return {
    name = NAME,
    options = options,
    create = create,
    update = update,
    refresh = refresh,
    background = background
}