local addonName, addon = ...
local LDB = LibStub('LibDataBroker-1.1')
local LDBI = LibStub('LibDBIcon-1.0')
local StdUi = LibStub('StdUi')

local faction = UnitFactionGroup('player')
if not faction then return end

local database = {
    Alliance = {
        ['羔羊公益之使-瓦里安'] = {true, '9', '0'},
        ['羔羊公益之命-末日行者'] = {true, '9', '0'},
        ['羔羊公益之心-冰霜之刃'] = {true, '9', '0'},
    },
    Horde = {
        ['羔羊公益之不-瓦拉纳'] = {true, '9', '0'},
        ['羔羊公益之忘-金色平原'] = {true, '9', '0'},
        ['羔羊公益之初-瓦里安'] = {true, '9', '0'},
        ['羔羊公益之牢-金色平原'] = {true, '9', '0'},
        ['咩咩的圣骑-冰霜之刃'] = {true, '9', '0'},
        ['想当坦公益-安苏'] = {true, '9', '0'},
        ['怜姐姐的术士-塞拉摩'] = {true, '9', '0'},
        ['怜姐姐的萨满-塞拉摩'] = {true, '9', '0'},
    },
}

local factionData = database[faction]
if not factionData then return end

-- Lua functions
local _G = _G
local bit_lshift, bit_bor, bit_bxor = bit.lshift, bit.bor, bit.bxor
local format, gsub, ipairs, next, pairs, random = format, gsub, ipairs, next, pairs, random
local select, strmatch, strupper, tinsert, type, wipe = select, strmatch, strupper, tinsert, type, wipe

-- WoW API / Variables
local AcceptGroup = AcceptGroup
local CreateFrame = CreateFrame
local GetDifficultyInfo = GetDifficultyInfo
local GetGameTime = GetGameTime
local GetInstanceInfo = GetInstanceInfo
local GetLegacyRaidDifficultyID = GetLegacyRaidDifficultyID
local GetNumSavedInstances = GetNumSavedInstances
local GetRaidDifficultyID = GetRaidDifficultyID
local GetSavedInstanceChatLink = GetSavedInstanceChatLink
local GetTime = GetTime
local IsInGroup = IsInGroup
local PlaySoundFile = PlaySoundFile
local SendChatMessage = SendChatMessage
local UnitClass = UnitClass

local C_Timer_After = C_Timer.After
local CooldownFrame_Set = CooldownFrame_Set
local UIDropDownMenu_SetAnchor = UIDropDownMenu_SetAnchor
local StaticPopup_Hide = StaticPopup_Hide

local DifficultyUtil_ID_Raid10Normal = DifficultyUtil.ID.Raid10Normal
local DifficultyUtil_ID_Raid10Heroic = DifficultyUtil.ID.Raid10Heroic
local DifficultyUtil_ID_Raid25Normal = DifficultyUtil.ID.Raid25Normal
local LE_PARTY_CATEGORY_HOME = LE_PARTY_CATEGORY_HOME

-- GLOBALS: FIFConfig

-- AddOn Engine
local F = CreateFrame('Frame')
F:SetScript('OnEvent', function(self, event, ...)
    self[event](self, event, ...)
end)
addon[1] = F

local buttons = {
    {
        name = "进",
        desc = "发送进组密语",
        func = function(self)
            if F:IsSendingInv() then
                F:Print("进组密语正在发送中")
                return
            end

            local now = GetTime()
            if F.prevInv and F.prevInv > now - 30 then
                F:Print("你每30秒只能发送一次进组密语")
                return
            end
            F.prevInv = now

            CooldownFrame_Set(self.cooldown, now, 30, 1)

            F:StartSendInv()

            if F.db.EnableSound and F.currentSkin and F.currentSkin.sound and F.currentSkin.sound[1] then
                PlaySoundFile(F.currentSkin.sound[1], 'Master')
            end
        end,
    },
    {
        name = "英",
        desc = "发送转英雄命令",
        func = function()
            if IsInGroup(LE_PARTY_CATEGORY_HOME) then
                SendChatMessage('h', 'PARTY')

                if F.db.EnableSound and F.currentSkin and F.currentSkin.sound and F.currentSkin.sound[3] then
                    PlaySoundFile(F.currentSkin.sound[3], 'Master')
                end
            end
        end,
    },
    {
        name = "普",
        desc = "发送转普通命令",
        func = function()
            if IsInGroup(LE_PARTY_CATEGORY_HOME) then
                SendChatMessage('n', 'PARTY')

                if F.db.EnableSound and F.currentSkin and F.currentSkin.sound and F.currentSkin.sound[4] then
                    PlaySoundFile(F.currentSkin.sound[4], 'Master')
                end
            end
        end,
    },
    {
        name = "团",
        desc = "发送转团队命令",
        func = function()
            if IsInGroup(LE_PARTY_CATEGORY_HOME) then
                SendChatMessage('raid', 'PARTY')
            end
        end,
    },
    {
        name = "退",
        desc = "发送退组命令",
        func = function()
            if IsInGroup(LE_PARTY_CATEGORY_HOME) then
                SendChatMessage('leave', 'PARTY')

                if F.db.EnableSound and F.currentSkin and F.currentSkin.sound and F.currentSkin.sound[5] then
                    PlaySoundFile(F.currentSkin.sound[5], 'Master')
                end
            end
        end,
    },
    {
        name = "帮",
        desc = "查看特殊CD使用步骤",
        func = function()
            F:ToggleSpecialSteps()
        end,
    },
    {
        name = "本",
        desc = "查看所有支持的副本",
        func = function()
            F:ToggleInstances()
        end,
    },
}

F.addonAbbr = "fif"
F.addonPrefix = "\124cFF70B8FF" .. addonName .. "\124r: "
F.addonLocaleName = "\124cFF70B8FF便利CD获取\124r: "
F.addonVersion = GetAddOnMetadata(addonName, 'Version')
--[==[@debug@
if F.addonVersion == 'v10.0.2-2-g6d66039' then
    F.addonVersion = 'Dev'
end
--@end-debug@]==]

F.mediaPath = 'Interface\\AddOns\\' .. addonName .. '\\Media\\'
F.playerName = UnitName('player')
-- 'player' workaround
if strmatch(F.playerName, '^Player') then
    local suffix = strsub(F.playerName, 7)
    F.playerName = 'player' .. strlower(suffix)
end

F.playerFullName = F.playerName .. '-' .. GetRealmName()

do
    local locale = GetLocale()
    if locale == 'koKR' then
        F.STANDARD_TEXT_FONT = 'Fonts\\2002.TTF'
    elseif locale == 'zhCN' then
        F.STANDARD_TEXT_FONT = 'Fonts\\ARKai_T.ttf'
    elseif locale == 'zhTW' then
        F.STANDARD_TEXT_FONT = 'Fonts\\blei00d.TTF'
    elseif locale == 'ruRU' then
        F.STANDARD_TEXT_FONT = 'Fonts\\FRIZQT___CYR.TTF'
    else
        F.STANDARD_TEXT_FONT = 'Fonts\\FRIZQT__.TTF'
    end
end

function F:Print(...)
    _G.DEFAULT_CHAT_FRAME:AddMessage(self.addonPrefix .. format(...))
end

function F:ToggleSpecialSteps()
    if not self.specialWindow then
        local window = StdUi:Window(_G.UIParent, 700, 500, "特殊CD使用步骤")
        window:SetPoint('CENTER')
        window:Hide()
        self.specialWindow = window

        local editbox = StdUi:MultiLineBox(window, 600, 400, [[
重要提醒: 插件版本更新，请使用推荐的地址下载，NGA、百度网盘、黑盒工坊、CurseForge等都可以更新，|cFFFF0000不要使用EUI更新器更新|r，有可能导致插件部分功能无法使用。
排队问题: 非周四时间如果排队超过10请微信联系我，周四排队超过30也可以私信我，大概率是卡队列了。
问题咨询: 微信 (wower_director) ===羔羊===

【奥迪尔】大剑幻化、【达萨罗】大工匠、【统御圣所】九武神坐骑CD获取方法

步骤1: 准备一个好友(游戏朋友)或者双开小号，处于随时待命状态，否则该CD将无法成功获取。
步骤2: 将需要染CD的号开到FB门口且小号就绪后，请点击插件[进]按钮排队进组。
步骤3: 当CD君组您进组后，请马上点击插件[团]功能按钮使CD君将小队转化为团队。
步骤4: 团队转换成功后，请立即提议邀请您的朋友进组（待命的游戏玩家），该玩家务必抓紧时间进队。
步骤5: 队友进队后此时您的团队里面应该有3个人(包括CD君在内)，此刻您迅速进本。
步骤6: 您进入FB或者进组满30秒后，CD君会自动退组，此后您才可以在集合石开团组人，成功完成上述步骤1-5后，集合石进组的人才能和您保持一个进度，切记、切记。

【英雄ICC】无敌CD获取方法

步骤1: 拍卖行买40级以上的绷带(治疗职业请忽略)。
步骤2: 进本前将团队FB难度调整为25人英雄模式。
步骤3: 然后进英雄ICC把一号BOSS打掉后随即出本。
步骤4: 出本以后不要做任何难度转换动作。直接使用CD插件进组即可，成功进组后进本去救绿龙，用刚刚买来的绷带把绿龙奶满血，过了绿龙立马出本，不要动巫妖王，这是普通模式不掉坐骑。
步骤5: 出本以后不要做任何难度转换动作，直接转身再进FB，通过传送器传送到上层，此时击杀巫妖王才有记录掉落无敌。

【帷纱集市】尾王坐骑CD进度使用方法

步骤1: 准备一个好友(游戏朋友)或者双开小号，处于随时待命状态，否则该CD将无法成功获取。
步骤2: 将需要染CD的号开到FB门口且小号就绪后，请点击插件[进]按钮排队进组。
步骤3: 当CD君组您进组后，请立即提议邀请您的朋友进组（待命的游戏玩家），该玩家务必抓紧时间进队。
步骤4: 队友进队后此时您的团队里面应该有3个人(包括CD君在内)，此刻您迅速进本。
步骤5: 您进入FB或者进组满30秒后，CD君会自动退组，此后您才可以在集合石开团组人，成功完成上述步骤1-5后，集合石进组的人才能和您保持一个进度，切记、切记。
备注: 如果未染成功，那么请将上面的步骤1、2、3、4、5在重新做一遍，直至成功。
        ]])
        editbox.editBox:Disable()
        StdUi:GlueTop(editbox, window, 0, -50, 'TOP')
    elseif self.specialWindow:IsShown() then
        self.specialWindow:Hide()
        return
    end

    self.specialWindow:Show()
end

do
    local function ICCDiffCheck()
        local _, _, difficultyID, _, _, _, _, instanceID = GetInstanceInfo()
        if instanceID ~= 631 or difficultyID == 6 then
            -- not in Icecrown Citadel or is 25 Player (Heroic)
            return
        end

        for i = 1, GetNumSavedInstances() do
            local link = GetSavedInstanceChatLink(i)
            local instanceID, bossList = strmatch(link, ':(%d+):%d+:(%d+)\124h')
            if instanceID == '631' then
                -- Icecrown Citadel found
                if bossList == '0' then
                    -- new progress
                    break
                end
                -- not new progress ignore
                return
            end
        end

        local RaidDifficulty = GetRaidDifficultyID()
        local LegacyRaidDifficulty = GetLegacyRaidDifficultyID()
        local isTenPlayer =
            LegacyRaidDifficulty == DifficultyUtil_ID_Raid10Normal or LegacyRaidDifficulty == DifficultyUtil_ID_Raid10Heroic

        local difficultyDisplayText =
            GetDifficultyInfo(isTenPlayer and DifficultyUtil_ID_Raid10Normal or DifficultyUtil_ID_Raid25Normal) ..
            GetDifficultyInfo(RaidDifficulty)

        -- In Icecrown Citadel and difficulty is not 25 Player (Heroic) and
        -- Icecrown Citadel new progress or not saved
        StdUi:Dialog("警告", format(
            "检测到你进入了冰冠堡垒，难度为: %s。\n" ..
            "如果需要使用无敌CD，请按以下步骤操作: \n" ..
            "1. 25人英雄难度自己击杀老一。\n" ..
            "2. 用CD插件进组救绿龙。\n" ..
            "3. 出本再进击杀巫妖王。",
            difficultyDisplayText
        ), 'FIF_ICC_WRONG_DIFF')
    end

    function F:PLAYER_ENTERING_WORLD()
        C_Timer_After(1, ICCDiffCheck)
    end
end

do
    local interval = 2

    local timeFrame = CreateFrame('Frame')
    timeFrame:Hide()
    timeFrame:SetScript('OnUpdate', function(self, elapsed)
        self.elapsed = self.elapsed + elapsed
        if self.elapsed < interval then return end

        self.elapsed = self.elapsed - interval

        local characterName, data = next(self.queue, self.prev)
        self.prev = characterName

        if not characterName then
            -- end of the list
            self:Hide()
            return
        end

        if self.dynamic and self.dynamicIndex and data[self.dynamicIndex] then
            SendChatMessage(self.dynamic, 'WHISPER', nil, characterName)
        else
            SendChatMessage(self.index and data[self.index] or data, 'WHISPER', nil, characterName)
        end

        if self.storeQueue then
            self.storeQueue[characterName] = self.storeIndex and data[self.storeIndex] or data
        end
    end)
    timeFrame:SetScript('OnShow', function(self)
        self.prev = nil
        self.elapsed = interval -- make it work at the very beginning
    end)

    local function StartTimer(queue, index, dynamic, dynamicIndex, storeQueue, storeIndex)
        timeFrame:Hide()

        timeFrame.queue = queue
        timeFrame.index = index
        timeFrame.dynamic = dynamic
        timeFrame.dynamicIndex = dynamicIndex
        timeFrame.storeQueue = storeQueue
        timeFrame.storeIndex = storeIndex
        timeFrame:Show()
    end

    local function StopTimer()
        timeFrame:Hide()
    end

    local function IsTimerStarted()
        return timeFrame:IsShown()
    end

    -- used to store characters touched
    local pendingClear = {}

    function F:StartSendInv()
        wipe(pendingClear)

        local postfix = '请组我'

        local iv = random(1, 0xFFFF)
        local quick = bit_bxor(
            bit_bor(bit_lshift(iv, 16), iv),
            self:CRC32(gsub(self.mainFrame.desc, self.addonLocaleName .. self.addonVersion, addonName))
        )

        local hour = GetGameTime()
        local hourText = format('%.2d', hour)
        local prefix = 'V201' .. hourText
        local final = self:CRC32(prefix .. self.playerFullName .. self:ToHex32(quick) .. postfix)

        local dynamic = prefix .. format('%.4X', iv) .. self:ToHex32(final) .. postfix

        StartTimer(factionData, 2, dynamic, 1, pendingClear, 3)
    end

    function F:StopSendInv()
        StopTimer()
    end

    function F:IsSendingInv()
        return IsTimerStarted()
    end

    function F:SendQuitExcept(name)
        pendingClear[name] = nil

        StartTimer(pendingClear)
    end
end

do
    local serverSuffix = '-' .. GetRealmName()

    function F:PARTY_INVITE_REQUEST(_, name)
        if factionData[name .. serverSuffix] then
            name = name .. serverSuffix
        elseif not factionData[name] then
            return
        end

        AcceptGroup()

        F:StopSendInv()
        F:SendQuitExcept(name)

        if self.db.EnableSound and self.currentSkin and self.currentSkin.sound and self.currentSkin.sound[2] then
            PlaySoundFile(self.currentSkin.sound[2], 'Master')
        end

        -- ui tweak
        for i = 1, 4 do
            local frame = _G['StaticPopup' .. i]
            if frame:IsVisible() and frame.which == 'PARTY_INVITE' then
                frame.inviteAccepted = true
                StaticPopup_Hide('PARTY_INVITE')
                return
            elseif frame:IsVisible() and frame.which == 'PARTY_INVITE_XREALM' then
                frame.inviteAccepted = true
                StaticPopup_Hide('PARTY_INVITE_XREALM')
                return
            end
        end
    end
end

do
    -- Public Adjust Func
    -- local function ShowMainText()
    --     F.mainFrame.text:Show()
    -- end

    local function HideMainText()
        F.mainFrame.text:Hide()
    end

    -- xxx: sound id stands for
    -- 1 -> send invite whisper
    -- 2 -> accept invite
    -- 3 -> convert to heroic
    -- 4 -> convert to normal
    -- 5 -> send quit whisper
    local skinList = {
        {
            name = "暗影国度",
            mainTexture = F.mediaPath .. 'Icon\\00_Major',
            subTexture = F.mediaPath .. 'Icon\\00_Minor',
            sound = {
                F.mediaPath .. 'Sound\\00_01.mp3',
                F.mediaPath .. 'Sound\\00_02.mp3',
                F.mediaPath .. 'Sound\\00_03.mp3',
                F.mediaPath .. 'Sound\\00_04.mp3',
                F.mediaPath .. 'Sound\\00_05.mp3',
            },
            func = HideMainText,
        },
        {
            name = "为了联盟",
            mainTexture = F.mediaPath .. 'Icon\\01_Major',
            subTexture = F.mediaPath .. 'Icon\\01_Minor',
            sound = {
                F.mediaPath .. 'Sound\\01_01.mp3',
                F.mediaPath .. 'Sound\\01_02.mp3',
                F.mediaPath .. 'Sound\\01_03.mp3',
                F.mediaPath .. 'Sound\\01_04.mp3',
                F.mediaPath .. 'Sound\\01_05.mp3',
            },
            func = HideMainText,
        },
        {
            name = "为了部落",
            mainTexture = F.mediaPath .. 'Icon\\02_Major',
            subTexture = F.mediaPath .. 'Icon\\02_Minor',
            sound = {
                F.mediaPath .. 'Sound\\02_01.mp3',
                F.mediaPath .. 'Sound\\02_02.mp3',
                F.mediaPath .. 'Sound\\02_03.mp3',
                F.mediaPath .. 'Sound\\02_04.mp3',
                F.mediaPath .. 'Sound\\02_05.mp3',
            },
            func = HideMainText,
        },
        {
            name = "蓝色火焰",
            mainTexture = F.mediaPath .. 'Icon\\03_Major',
            subTexture = F.mediaPath .. 'Icon\\03_Minor',
            func = HideMainText,
        },
        {
            name = "可爱喵咪",
            mainTexture = F.mediaPath .. 'Icon\\04_Major',
            subTexture = F.mediaPath .. 'Icon\\04_Minor',
            func = HideMainText,
        },
       {
            name = "职业图标",
            subTexture = F.mediaPath .. 'Icon\\00_Transparent',
            func = function()
                HideMainText()

                local classFilename = select(2, UnitClass('player'))
                F.mainFrame.texture:SetTexture(F.mediaPath .. 'Icon\\05_Major_' .. classFilename)
            end,
        },
        {
            name = "小软爱你哟",
            mainTexture = F.mediaPath .. 'Icon\\06_Major',
            subTexture = F.mediaPath .. 'Icon\\00_Transparent',
            sound = {
                F.mediaPath .. 'Sound\\06_01.mp3',
                F.mediaPath .. 'Sound\\06_02.mp3',
                F.mediaPath .. 'Sound\\06_03.mp3',
                F.mediaPath .. 'Sound\\06_04.mp3',
                F.mediaPath .. 'Sound\\06_05.mp3',
            },
            func = HideMainText,
        },
    }

    local menuTable
    local menuFrame = CreateFrame('Frame', addonName .. 'MenuFrame', _G.UIParent, 'UIDropDownMenuTemplate')

    local function Apply(_, arg1)
        F:ApplySkin(arg1)
    end

    function F:ShowConfigMenu(parent)
        if not menuTable then
            menuTable = {
                { text = "皮肤", isTitle = true, notCheckable = true },
            }
            for index, data in ipairs(skinList) do
                local currentIndex = index
                tinsert(menuTable, {
                    text = data.name, arg1 = currentIndex, func = Apply,
                    checked = function()
                        return currentIndex == self.db.Skin
                    end,
                })
            end

            tinsert(menuTable, {
                text = "设置", isTitle = true, notCheckable = true,
            })
            tinsert(menuTable, {
                text = "启用提示语音", isNotRadio = true,
                func = function()
                    self.db.EnableSound = not self.db.EnableSound
                end,
                checked = function()
                    return self.db.EnableSound
                end,
            })
            tinsert(menuTable, {
                text = "显示小地图图标", isNotRadio = true,
                func = function()
                    self:ToggleMinimap()
                end,
                checked = function()
                    return self.db.ShowMinimap
                end,
            })
            tinsert(menuTable, {
                text = "快速申请", isNotRadio = true, tooltipTitle = "启用左键点击小地图图标申请进组",
                func = function()
                    self.db.QuickAccess = not self.db.QuickAccess
                end,
                checked = function()
                    return self.db.QuickAccess
                end,
            })
        end

        UIDropDownMenu_SetAnchor(menuFrame, 0, 0, 'TOPLEFT', parent, 'TOPRIGHT')
        _G.EasyMenu(menuTable, menuFrame, nil, nil, nil, 'MENU')
    end

    function F:ApplySkin(index)
        if not skinList[index] then
            index = 1
        end

        local data = skinList[index]
        self.mainFrame.texture:SetTexture(data.mainTexture)
        for _, button in ipairs(self.mainFrame.subFrame.buttons) do
            button.texture:SetTexture(data.subTexture)
        end
        if data.func then
            data.func(data)
        end

        self.currentSkin = data
        self.db.Skin = index
    end
end

do
    local function MainFrameOnClick(self, button)
        if button == 'RightButton' then
            F:ShowConfigMenu(self)
        else
            if self.subFrame:IsShown() then
                self.subFrame:Hide()
            else
                self.subFrame:Show()
            end
        end
    end

    local function ButtonOnEnter(self)
        if self.desc then
            _G.GameTooltip:Hide()
            _G.GameTooltip:SetOwner(self, 'ANCHOR_RIGHT')
            _G.GameTooltip:ClearLines()

            _G.GameTooltip:AddLine(self.desc, 1, 1, 1)

            _G.GameTooltip:Show()
        end
    end

    local function ButtonOnLeave()
        _G.GameTooltip:Hide()
    end

    local MAIN_BUTTON_SIZE = 48
    local SUB_BUTTON_SIZE = 24
    local SUB_BUTTON_PADDING = 20
    local SUB_BUTTON_SPACING = 12

    function F:BuildFrame()
        local mainFrame = CreateFrame('Button', addonName .. 'Frame', _G.UIParent)
        mainFrame:SetClampedToScreen(true)
        mainFrame:SetMovable(true)
        mainFrame:RegisterForClicks('LeftButtonUp', 'RightButtonUp')
        mainFrame:RegisterForDrag('LeftButton')
        mainFrame:SetScript('OnDragStart', mainFrame.StartMoving)
        mainFrame:SetScript('OnDragStop', mainFrame.StopMovingOrSizing)
        mainFrame:SetScript('OnClick', MainFrameOnClick)
        mainFrame:SetScript('OnEnter', ButtonOnEnter)
        mainFrame:SetScript('OnLeave', ButtonOnLeave)
        mainFrame:SetSize(MAIN_BUTTON_SIZE, MAIN_BUTTON_SIZE)
        mainFrame:ClearAllPoints()
        mainFrame:SetPoint('TOPLEFT', 10, -100)
        self.mainFrame = mainFrame

        mainFrame.desc = self.addonLocaleName .. self.addonVersion .. "\n" ..
            "魔兽世界第一幻化交流群公益插件，公开免费下载。" .. "\n" ..
            "下载地址: https://bbs.nga.cn/read.php?tid=22958219" .. "\n" ..
            "Code by Rhythm w/ <3" .. "\n" ..
            "故障处理微信: wower_director"

        mainFrame.texture = mainFrame:CreateTexture('BACKGROUND')
        mainFrame.texture:ClearAllPoints()
        mainFrame.texture:SetAllPoints()
        mainFrame.texture:SetTexCoord(0, 1, 0, 1)

        mainFrame.text = mainFrame:CreateFontString(nil, 'OVERLAY')
        mainFrame.text:SetFont(self.STANDARD_TEXT_FONT, 12, 'OUTLINE')
        mainFrame.text:SetTextColor(1, 1, 1, 1)
        mainFrame.text:SetPoint('CENTER')
        mainFrame.text:SetJustifyH('CENTER')
        mainFrame.text:SetText("CD")

        local subFrame = CreateFrame('Frame', nil, mainFrame)
        subFrame:EnableMouse(true)
        subFrame:SetSize(#buttons * (SUB_BUTTON_SIZE + SUB_BUTTON_SPACING) - SUB_BUTTON_SPACING + SUB_BUTTON_PADDING * 2, 36)
        subFrame:ClearAllPoints()
        subFrame:SetPoint('LEFT', mainFrame, 'RIGHT', 0, 0)
        subFrame:Hide()
        mainFrame.subFrame = subFrame

        subFrame.buttons = {}
        for index, data in ipairs(buttons) do
            local button = CreateFrame('Button', nil, subFrame)
            button:RegisterForClicks('LeftButtonUp', 'RightButtonUp')
            button:SetScript('OnClick', data.func)
            button:SetScript('OnEnter', ButtonOnEnter)
            button:SetScript('OnLeave', ButtonOnLeave)
            button:SetSize(SUB_BUTTON_SIZE, SUB_BUTTON_SIZE)
            button:ClearAllPoints()
            button:SetPoint('LEFT', SUB_BUTTON_PADDING + (index - 1) * (SUB_BUTTON_SIZE + SUB_BUTTON_SPACING), 0)

            button.desc = data.desc

            button.texture = button:CreateTexture('BACKGROUND')
            button.texture:ClearAllPoints()
            button.texture:SetPoint('TOPLEFT', button, 'TOPLEFT', -5, 5)
            button.texture:SetPoint('BOTTOMRIGHT', button, 'BOTTOMRIGHT', 5, -5)
            button.texture:SetTexCoord(0, 1, 0, 1)

            button.text = button:CreateFontString(nil, 'OVERLAY')
            button.text:SetFont(self.STANDARD_TEXT_FONT, 14, 'OUTLINE')
            button.text:SetTextColor(1, 1, 1, 1)
            button.text:SetPoint('CENTER')
            button.text:SetJustifyH('CENTER')
            button.text:SetText(data.name)

            button.cooldown = CreateFrame('Cooldown', nil, button, 'CooldownFrameTemplate')
            button.cooldown:ClearAllPoints()
            button.cooldown:SetAllPoints()
            button.cooldown:SetDrawEdge(false)

            if _G.ElvUI then
                -- everyone has his fav addon right?
                button.cooldown.CooldownOverride = 'actionbar'
                _G.ElvUI[1]:RegisterCooldown(button.cooldown)
            end

            tinsert(subFrame.buttons, button)
        end
    end
end

do
    local defaultConfig = {
        DBVer = 2,
        Skin = 1,
        EnableSound = false,
        ShowMainFrame = true,
        ShowMinimap = true,
        QuickAccess = false,
    }

    local brokerConfig = {
        hide = false,
    }

    local function SlashCmdHandler(msg)
        if msg == 'show' then
            F:ToggleMainFrame(true)

            -- reset position
            F.mainFrame:ClearAllPoints()
            F.mainFrame:SetPoint('TOPLEFT', 10, -100)
            F.mainFrame:Show()
        elseif msg == 'hide' then
            F:ToggleMainFrame(false)
        else
            F:Print("\n    /%s show 重置界面位置并显示界面\n    /%s hide 隐藏界面", F.addonAbbr, F.addonAbbr)
        end
    end

    function F:ToggleMainFrame(target)
        if type(target) == 'boolean' then
            if not self.db.ShowMinimap and not target then
                F:Print('无法同时隐藏主界面和小地图按钮')
                return
            end

            self.db.ShowMainFrame = target
        else
            if not self.db.ShowMinimap and self.db.ShowMainFrame then
                F:Print('无法同时隐藏主界面和小地图按钮')
                return
            end

            self.db.ShowMainFrame = not self.db.ShowMainFrame
        end
        self.mainFrame:SetShown(self.db.ShowMainFrame)
    end

    function F:ToggleMinimap()
        if not self.db.ShowMainFrame and self.db.ShowMinimap then
            F:Print('无法同时隐藏主界面和小地图按钮')
            return
        end

        self.db.ShowMinimap = not self.db.ShowMinimap
        brokerConfig.hide = not self.db.ShowMinimap
        if brokerConfig.hide then
            LDBI:Hide(addonName)
        else
            LDBI:Show(addonName)
        end
    end

    function F:ADDON_LOADED(_, name)
        if name == addonName then
            self:UnregisterEvent('ADDON_LOADED')

            if not FIFConfig then
                FIFConfig = defaultConfig
            else
                -- old database version fallback
                if not FIFConfig.DBVer then
                    -- corrupted
                    FIFConfig = defaultConfig
                elseif FIFConfig.DBVer == 1 then
                    -- enforce show main frame once
                    FIFConfig.ShowMainFrame = true
                end
                FIFConfig.DBVer = 2

                -- handle deprecated
                for key in pairs(FIFConfig) do
                    if type(defaultConfig[key]) == 'nil' then
                        FIFConfig[key] = nil
                    end
                end
                -- apply default value
                for key, value in pairs(defaultConfig) do
                    if type(FIFConfig[key]) == 'nil' then
                        FIFConfig[key] = value
                    end
                end
            end
            self.db = FIFConfig

            self:BuildFrame()
            self:ApplySkin(self.db.Skin)
            self.mainFrame:SetShown(self.db.ShowMainFrame)

            self:RegisterEvent('PARTY_INVITE_REQUEST')
            self:RegisterEvent('PLAYER_ENTERING_WORLD')

            brokerConfig.hide = not self.db.ShowMinimap
            local broker = LDB:NewDataObject(addonName, {
                type = 'launcher',
                label = addonName,
                icon = F.mediaPath .. 'Icon\\00_Major',
                OnClick = function(self, button)
                    if button == 'RightButton' then
                        F:ShowConfigMenu(self)
                    elseif F.db.QuickAccess then
                        buttons[1].func(F.mainFrame.subFrame.buttons[1])
                    end
                end,
            })
            LDBI:Register(addonName, broker, brokerConfig)

            local upperAddonName = strupper(addonName)
            _G['SLASH_' .. upperAddonName .. '1'] = '/' .. addonName
            _G['SLASH_' .. upperAddonName .. '2'] = '/' .. self.addonAbbr

            _G.SlashCmdList[upperAddonName] = SlashCmdHandler
        end
    end
end

F:RegisterEvent('ADDON_LOADED')
