-- Modules/Changelog.lua
-- Displays the changelog in a scrollable window

local ADDON_NAME, BFL = ...
local L = BFL.L
local Changelog = BFL:RegisterModule("Changelog", {})

local changelogFrame = nil

-- Changelog content
local CHANGELOG_TEXT = [[# Changelog

All notable changes to BetterFriendlist will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

---

## [2.3.5]       - 2026-02-13
### Fixed
- **Settings Import Failing** - Fixed settings import always failing with "corrupted string" error, making it impossible to restore exported backups.
- **Settings Import Not Fully Replacing Data** - Fixed settings import not removing groups or settings that were created after the export. Importing a backup now fully restores the exact state from the export.

## [2.3.4]       - 2026-02-12
### Fixed
- **Streamer Mode Real ID Leaks** - Fixed several places where Real IDs could still be visible despite Streamer Mode being active:
  - Friend tooltip in Classic showed Real ID instead of BattleTag.
  - Data Broker tooltip showed Real ID for friends not currently playing WoW.
  - Recruit-A-Friend tab showed Real IDs without respecting Streamer Mode.
  - FriendListColors addon integration received unmasked Real IDs.
  - Copy Name popup could fall back to Real ID.
  - Drag ghost text could show Real ID when dragging a friend.

## [2.3.3]       - 2026-02-11
### Added
- **Note Cleanup Wizard** - Added a new wizard (Settings -> Advanced) to clean up FriendGroups-style note suffixes (#Group1#Group2) from friend notes. Features a searchable table showing Account Name, BattleTag, Original Note and Cleaned Note with inline editing. Supports both BNet and WoW friends. Includes automatic backup before applying changes. Per-row status icons (pending/success/error) with traffic-light colored backgrounds provide real-time visual feedback during the cleanup process. Respects Streamer Mode by masking Real IDs in the Account Name column and search filter.
- **Note Backup Viewer & Restore** - Added a backup viewer (Settings -> Advanced) to inspect all backed-up friend notes side-by-side with current notes. Changed notes are highlighted. The restore process uses sequential per-row status icons (pending/success/error) with traffic-light colored backgrounds, matching the Cleanup Wizard's visual feedback. Includes a Backup button to create new backups directly from the viewer.
- **Group Note Sync** - Added a new setting (Settings -> Advanced) to automatically sync group assignments to friend notes using the FriendGroups format (Note#Group1#Group2). Groups are ordered by their configured group order. Changes to group membership, group order, or external note modifications (e.g., via Note Cleanup Wizard) are automatically detected and corrected. Respects BNet (127 char) and WoW (48 char) note limits. Includes a confirmation dialog when enabling. Shows a live progress indicator ("Syncing notes: x / y") below the checkbox during the initial sync. Supports both BNet and WoW friends.

### Changed
- **Data Broker Tooltip Library** - Migrated the Data Broker tooltip from LibQTip-1.0 to LibQTip-2.0.

### Fixed
- **QuickJoin Secret Values** - Fixed a crash (`attempt to perform boolean test on field 'autoAccept'`) caused by Patch 12.0.0 (Midnight) where certain group finder fields (autoAccept) became secret and caused security violations when used in boolean checks.
- **Non-WoW Game Info Text** - Fixed friend info text for non-WoW games (Overwatch, Diablo, Hearthstone, etc.) showing raw client program codes (e.g., "Pro", "D4", "WTCG") instead of the rich presence text (e.g., "Competitive: In Game", "Greater Rift", "Ranked: In Game") like Blizzard's default UI does.
- **Empty Account Name for BattleTag-Only Friends** - Fixed BNet friends with empty `accountName` (kString) showing a blank display name instead of falling back to the short BattleTag. Now follows Blizzard's `BNet_GetBNetAccountName` pattern: if accountName is nil, empty, or "???", the short BattleTag (before #) is used as fallback.
- **Top Tab State Not Reset on Reopen** - Fixed a bug where closing the friends list while on the Recent Allies or RAF tab and reopening it would show the Friends tab as selected but display the content of the previously viewed tab. The top tab (FriendsTabHeader) state is now properly reset when reopening.
- **QuickJoin Crash During Combat (Issue #44)** - Fixed a crash caused by Patch 12.0.0 Secret Values when `C_LFGList.GetSearchResultInfo()` returns secret field values during combat lockdown (e.g., M+ keys). Implemented a Secret-Passthrough mode that stores and displays secret values directly (group title, leader name, member count, activity name/icon) instead of discarding them. Forbidden operations (comparisons, iteration) are safely skipped.
- **Group Count Font Size** - Fixed the Group Count text (e.g. "(3/10)") not respecting the global Group Header font size setting. Root cause: when the Group Name and Group Count were split into separate FontStrings for independent color support, the Count FontString received a hardcoded 12pt font override that was not properly cleared by subsequent font sync calls.
- **Assist All Checkbox** - Fixed an issue not disabling the 'Assist All' checkbox and its label when the player isn't raid leader.

### Performance
- **QuickJoin Module Optimizations** - Fifth iteration of performance fixes added. If anything feels odd don't hesitate to contact.

## [2.3.2]       - 2026-02-10
### Fixed
- **Midnight API Fix** - Fixed `C_RestrictedActions.IsAddOnRestrictionActive` error caused by missing required `Enum.AddOnRestrictionType` argument (API changed in 12.0.0).
- **Rendering Delay After Login/Reload** - Fixed a noticeable delay where groups appeared empty (with zero counts) before friends populated after `/reload` or login. Root cause was `BNGetNumFriends()` temporarily returning 0 while BNet reconnects, triggering a premature empty render.

## [2.3.1]       - 2026-02-10
### Special Thanks
- Huge shoutout to **R41z0r** again for another round of testing my addon <3
### Added
- **Context Menu Integration** - Added BFL options (Set Nickname, Groups, etc.) to friend right-click menus even when not opened from BFL (e.g. from chat links), provided the player is a recognized friend.
- **Favorite Icon Style** - Added a setting to choose between BFL and Blizzard favorite icons (with icon previews) in Retail.

### Changed
- **Font Dropdown UX** - Font dropdowns now use single-check checkbox menus so the current selection stays visible without reopening. Font dropdowns now preview the font.
- **Settings Layout** - Moved "Show Welcome Message" above Favorite Icon controls.
- **Favorite Icon Spacing** - Adjusted favorite icon sizing/padding in compact mode to keep names aligned.

### Fixed
- **UI Taint / Action Forbidden** - Fixed critical errors ("Action Forbidden") that could break the ESC key or Chat functionality during combat. Removed a conflict with Blizzard's window management system.
- **Localization** - Fixed capitalization in context menu headers ("BetterFriendList" -> "BetterFriendlist") for consistency.
- **Group Rename Display** - Fixed an issue where renaming groups (including built-in groups like "Favorites" or "No Group") would not visually update until a full UI reload.
- **Built-in Group Renames** - Fixed inconsistent behavior when renaming built-in groups like "In-Game" so changes are reflected correctly.
- **Settings Frame Viewport** - Fixed an issue where the Settings frame could be dragged outside the visible screen area. Frame is now clamped to screen boundaries.
- **Invite Group (Party Check)** - Fixed "Invite All to Party" to skip friends who are already in your party/raid or playing a different WoW version (e.g., Classic friends when you're on Retail).
- **Invite Group (Empty Groups)** - Fixed "Invite All to Party" context menu option to only appear when the group has invitable friends (online, same WoW version, not in party). The button shows the invitable count.
- **Story Mode Raid Tab** - Fixed the Raid tab to be properly disabled when in Story Mode instances (like Blizzard's FriendsFrame). Uses official `DifficultyUtil.InStoryRaid()` API. Disabled tab shows tooltip explaining why.
- **Dynamic Row Height** - Fixed friend list rows to dynamically adjust height based on font size settings, preventing text overlap at larger font sizes.
- **Group Color Picker Alpha** - Added alpha (transparency) support to all group color pickers (main color, count color, arrow color) allowing semi-transparent group colors.
- **Show Faction Icons** - Fixed the setting so faction icons display correctly when enabled.
- **Show Collapse Arrow** - Fixed the setting so collapse/expand arrows show when enabled.
- **Raid Right-Click MT/MA** - Fixed raid context menu options for Main Tank/Main Assist not working.
- **ElvUI Skin (Context Menus)** - Removed redundant context menu skinning code since ElvUI already handles this globally.
- **ElvUI Skin (Missing Hooks)** - Added ElvUI skinning for Checkbox+Dropdown rows (e.g. Favorite Icon), Input fields (e.g. Streamer Mode custom text), and Button rows that were previously unskinned.
- **Favorite Icon Cache** - Fixed favorite star icons incorrectly appearing on offline WoW friends due to a ScrollBox button recycling issue.
- **Assist All** - Fixed Assist All not showing assistant crown for raid players.
- **Tabs Resizing** - Improved Tabs resizing when using big font sizes.

## [2.3.0]       - 2026-02-07
### Special Thanks
- Huge shoutout to **R41z0r** for testing the shit out of my addon. He's awesome and so is his addon EQOL <3

### Added
- **Raid Tab** - Added Convert To Raid / Convert To Party button to raid tab.
- **Login Message Setting** - Added new setting to enable/disable BFL's login message.
- **Raid Shortcuts** - Added two new Raid Shortcuts for setting Raid Leader and Assistant
- **Raid Settings** - Added new Raid Tab in Settings. You can enable/disable and change the actual shortcut used for the four actions BFL supports.
- **Raid Help Frame** - Added descriptions for both new shortcuts. The text reflects what you have setup in Raid Settings.
- **Copy Dialogs** - Added auto-close function when Ctrl+C is pressed.
- **Translations** - Added new translations, fixed some awkward translations.
- **Groups Scrollbar** - Added Scrollbar for right-click menu for friends -> groups so that a massive list of created groups doesn't grow out of the screen.
- **Frame Clamped** - Added ClampedToScreen protection so that the friendlist window can't move out of screen.
- **Position Reset Command** - For any edge-case scenarios the command `/bfl reset` was added. It resets frame position, width, height and scale.

### Changed
- **Changelog** - Improved the "NEW" indicator on the changelog menu button to use a cleaner, native-style tag with less padding (Retail).
- **RAF Visibility** - Added RAF visibility check.
- **Copy Character Name** - Replaced all 'Copy Character Name' right-click menu options with BFL-native options. Please be aware that copying natively to clipboard is protected and a copy dialog variant is the only way to achieve it for addons.
- **Create/Rename Group** - Dialog for creating/renaming a group now checks if the given name is already used.
- **Groups Setting Fixes** - Added outline to groups color elements in settings, removed highlight hover effect, fixed inherit functions, standardized padding between elements, fixed missing translation key for renaming groups
- **Font Settings** - Removed options Font Outline and Font Shadow for now. Will be added again in a later update.
- **Group Header Counts** - Changed possible values to Filtered / Total, Online / Total, Filtered / Online / Total
- **Sorter** - Selected primary sorter can't be used as secondary sorter anymore, e.g. sorting by Name & Name doesn't make sense.
- **Empty Groups** - Changed default behaviour of empty groups so these will be shown when 'Hide Empty Groups' setting is disabled.
- **Simple Mode** - Removed empty spaces around the SearchBar.
- **Settings Visibility** - Data Broker and Global Sync options are now hidden when the features aren't enabled.
- **Send Message Button** - Send Message Button is disabled when you select a offline WoW friend.
- **Group Order Drag and Drop** - Changed group ordering in settings to use drag and drop instead of up and down buttons.
- **Data Broker Column Drag and Drop** - Changed data broker column ordering in settings to use drag and drop instead of up and down buttons.
- **Drag and Drop Ghosting** - Added a ghosting effect when you use drag so that you know what/who you're dragging!

### Fixed
- **Tab Width Calculation** - Fixed dynamic tab width calculation when toggling Streamer Mode.
- **Layouting** - Fixed and standardized layout of UI elements.
- **RAF Label** - Removed redundant friend label.
- **Changelog** - Fixed date alignment.
- **SearchBar Visibility** - Fixed SearchBar visibility in Normal Mode when swapping tabs.
- **Recent Allies Information** - Changed display of Recent Allies information to a approach closer to Blizzard's view of Recent Allies.
- **Recent Allies Rendering** - Fixed flickering of some Recent Allies elements.
- **Recent Allies Positioning** - Changed element positioning to better align character information and pipes.
- **Beta Fixes** - Added some new API Calls so that deprecated API isn't used anymore in WoW Midnight Beta, e.g. BNSetAFK().
- **Ignore List Label** - Fixed visibility of ignored label showing when you no entries in ignore list.
- **Groups Setting Layout** - Fixed Groups Setting layout cropping UI elements.
- **Streamer Mode Tooltip** - Fixed Streamer Mode tooltip enabled/disable state not updating properly after toggling the mode by pressing the button.
- **ColorPicker** - Fixed some lua errors and added proper color reset.
- **Global Sync** - Fixed a bug not saving note changes in Global Sync tab for friends.
- **Who List** - Fixed selection in who list, fixed sorting, fixed caching.
- **Performance** - Fourth iteration of performance fixes added. If anything feels odd don't hesitate to contact.
- **Streamer Mode (Classic)** - Fixed Streamer Mode in Classic not showing settings and button.
- **Friend Width Calculation (Classic)** - Fixed friend font string width calculation not properly updating in classic after changing the width of the friendlist.

## [2.2.9]       - 2026-02-03
### Fixed
- **Friend Button Layout** - Fixed an issue where Friend Name and Friend Info would not resize properly after adjusting Width via Settings.
- **Database Initialization** - Fixed a database initialization error.
- **QuickFilters** - Fixed a QuickFilter database issue causing filters to not update properly.

## [2.2.8]       - 2026-02-02
### Added
- **Streamer Mode** - Added Streamer Mode! When enabled you can toggle streamer mode to hide friend informations like Real IDs or your own battletag for privacy reasons. Real IDs will be hidden for following UI elements: Friend Name, Friend Tooltip, QuickJoin. You can change your own BattleTag with custom text in settings.
- **Favorite Icons** - Added an option to toggle the star icon for favorites directly on the friend button (Settings -> General). While enabled, favorite friends will be sorted above other friends in the same sorting subgroup.
- **Faction Backgrounds** - Added an option to show faction-colored backgrounds (Blue/Red) for friends in the list (Settings -> General).
- **Friend List Colors Support** - Automatically disables Name Format settings when "FriendListColors" addon is detected. When Friend List Colors is enabled all the name formatting actions will be led by the addon (Streamer Mode excluded).
- **Settings Layout** - Updated settings layout to better support future categories.
- **More Font Settings** - Added Font Settings for Tab Texts and Raid Player Name.
- **Window Lock Option** - Added option to lock the window to prevent moving it accidentally.

### Changed
- **Global Sync** - Global Sync is now flagged as stable feature and can be used without enabling beta features in BFL.

### Removed
- **Edit Mode** - Abandoned BFL's Edit Mode Support for now. Settings for width, height and scale can be found in settings instead. If the position, width, height or scale is different after the update please adjust it again - I wasn't able to restore all variants of Edit Mode Profiles to my settings. Sorry for the inconvenience!
- **Notification System** - Removed Notification Beta System for now. Might be added again in the future

### Fixed
- **Broker Tooltip** - Resolved an issue where the tooltip would not display correctly with display addons like ChocolateBar.
- **ElvUI Skin** - Fixed a Lua error ("index field 'BFLCheckmark'") that could occur when other addons (like ToyBoxEnhanced) create menus that BetterFriendlist tries to skin.
- **Groups Cache** - Fixed an issue with groups caching sometimes not updating properly when changing groups of a friend.

## [2.2.7]       - 2026-01-31
### Fixed
- **Library** - Fixed potential issues with LibQTip library integration.

## [2.2.6]       - 2026-01-31
### Added
- **Copy Character Name** - Added a new option to the context menu to copy character names (Name-Realm) for better inviting/messaging
- **Simple Mode** - Added Simple Mode in Settings -> General. Simple Mode hides specific elements (Search, Filter, Sort, BFL Avatar) and moves corresponding functions in the menu button
- **ElvUI Skin Tabs** - Improved alignment of tab text and overall layout of all tabs of BFL in ElvUI Skin

### Fixed
- **Friend Groups Migration** - Fixed an issue with FriendGroups Migration for WoW friends. Added more debug logs to better help with issues.
- **ElvUI Skin Retail** - Fixed an error with ElvUI Retail Skinning
- **ElvUI Skin Classic** - Fixed and enabled ElvUI Classic Skin
- **QuickJoin Informations** - Fixed an issue with shown QuickJoin informations lacking details of queued content type
- **Broker Integration** - Fixed an issue that disabled the Broker BFL Plugin
- **Performance** - Third iteration of performance added. If anything feels odd don't hesitate to contact
- **RAF** - Fixed an issue blocking the usage of copy link button in RAF Frame
- **Global Sync** - Fixed an error occuring while having own characters in sync added

---

*Older versions archived. Full history available in git.*
]]

-- Helper to set title safely across versions
local function SetTitle(frame, title)
	if frame.TitleText and frame.TitleText.SetText then
		frame.TitleText:SetText(title)
	elseif frame.TitleContainer and frame.TitleContainer.TitleText then
		frame.TitleContainer.TitleText:SetText(title)
	end
end

local function StripEmojis(text)
	-- 1. Replace specific symbols
	text = text:gsub("→", ">")

	-- 2. Remove known emojis
	local emojis = {
		"🚀",
		"⚡",
		"🔗",
		"🔌",
		"🎯",
		"🔔",
		"🐛",
		"🔧",
		"✨",
		"📝",
		"🌍",
		"🎮",
		"📨",
		"🛡️",
		"📊",
		"🎉",
		"🎨",
		"📋",
		"✅",
	}
	for _, emoji in ipairs(emojis) do
		text = text:gsub(emoji, "")
	end

	-- 3. Catch-all for 4-byte characters (Generic Emoji range)
	text = text:gsub("[\240-\247][\128-\191][\128-\191][\128-\191]", "")

	return text
end

local function CleanLine(line)
	-- Remove comments
	line = line:gsub("/%*.-%*/", "")
	-- Remove emojis
	line = StripEmojis(line)
	-- Remove backticks
	line = line:gsub("`", "")
	-- Trim whitespace
	return line:gsub("^%s+", "")
end

local function FormatInline(text)
	-- Bold **text**
	text = text:gsub("%*%*(.-)%*%*", "|cffffffff%1|r")
	-- Links
	text = text:gsub("%[(.-)%]%((.-)%)", "|cff66bbff%1|r")
	return text
end

local function ParseChangelog(text)
	local entries = {}
	local currentEntry = nil

	for line in text:gmatch("[^\r\n]+") do
		-- Match version and date with flexible whitespace handling
		local version, date = line:match("^## %[(.-)%]%s*-%s*(.+)")

		-- Fallback for entries with just version (like DRAFT or future unreleased)
		-- Although the previous code required date, sometimes [Unreleased] has no date
		if not version then
			version = line:match("^## %[(.-)%]%s*$")
			date = ""
		end

		if version and date ~= "" then -- Maintain previous behavior of requiring date mostly, or strictly adhering to "Header has date"
			-- Actually, let's stick closer to original logic but allow extra spaces
			-- Trim date just in case
			date = date:match("^%s*(.-)%s*$")

			if currentEntry then
				table.insert(entries, currentEntry)
			end
			currentEntry = {
				version = version,
				date = date,
				blocks = {},
			}
		elseif currentEntry then
			local cleanLine = CleanLine(line)
			if cleanLine ~= "" then
				-- Determine block type
				if cleanLine:match("^# ") then
					table.insert(currentEntry.blocks, {
						type = "h1",
						content = FormatInline(cleanLine:gsub("^# ", "")),
					})
				elseif cleanLine:match("^#### ") then
					table.insert(currentEntry.blocks, {
						type = "h4",
						content = FormatInline(cleanLine:gsub("^#### ", "")),
					})
				elseif cleanLine:match("^### ") then
					table.insert(currentEntry.blocks, {
						type = "h3",
						content = FormatInline(cleanLine:gsub("^### ", "")),
					})
				elseif cleanLine:match("^%- ") then
					table.insert(currentEntry.blocks, {
						type = "list_item",
						content = FormatInline(cleanLine:gsub("^%- ", "")),
					})
				elseif cleanLine:match("^%-%-%-") or cleanLine:match("^%*%*%*") or cleanLine:match("^___") then
					table.insert(currentEntry.blocks, {
						type = "separator",
					})
				else
					table.insert(currentEntry.blocks, {
						type = "text",
						content = FormatInline(cleanLine),
					})
				end
			end
		end
	end

	if currentEntry then
		table.insert(entries, currentEntry)
	end

	return entries
end

local function RecalculateHeight(contentFrame, entryFrames)
	local totalHeight = 10
	for _, frame in ipairs(entryFrames) do
		totalHeight = totalHeight + frame:GetHeight() + 5
	end
	contentFrame:SetHeight(totalHeight)
end

local function ShowCopyDialog(url, title)
	StaticPopupDialogs["BETTERFRIENDLIST_COPY_URL"] = {
		text = title or "Copy URL",
		button1 = "Close",
		hasEditBox = true,
		editBoxWidth = 350,
		OnShow = function(self)
			self.EditBox:SetText(url)
			self.EditBox:SetFocus()
			self.EditBox:HighlightText()
			self.EditBox:SetScript("OnKeyUp", function(editBox, key)
				if IsControlKeyDown() and key == "C" then
					editBox:GetParent():Hide()
				end
			end)
		end,
		EditBoxOnEnterPressed = function(self)
			self:GetParent():Hide()
		end,
		EditBoxOnEscapePressed = function(self)
			self:GetParent():Hide()
		end,
		timeout = 0,
		whileDead = true,
		hideOnEscape = true,
		preferredIndex = 3,
	}
	StaticPopup_Show("BETTERFRIENDLIST_COPY_URL")
end

function Changelog:ShowDiscordPopup()
	ShowCopyDialog("https://discord.gg/dpaV8vh3w3", L.CHANGELOG_POPUP_DISCORD)
end

function Changelog:IsNewVersion()
	local DB = BFL:GetModule("DB")
	local lastVersion = DB:Get("lastChangelogVersion", "0.0.0")
	local currentVersion = BFL.VERSION
	return lastVersion ~= currentVersion
end

function Changelog:Initialize()
	-- Setup PortraitButton for Classic - create entirely in Lua for full control
	if BFL.IsClassic and BetterFriendsFrame then
		self:SetupClassicPortraitButton()
	end

	-- Check version and show glow if needed
	self:CheckVersion()
end

function Changelog:SetupClassicPortraitButton()
	local frame = BetterFriendsFrame
	if not frame then
		return
	end

	-- Hide the default portrait from ButtonFrameTemplate
	if frame.portrait then
		frame.portrait:Hide()
	end

	-- Create clickable button as child of the frame (ensures correct Z-ordering with other windows)
	-- This fixes the issue where it covers other UI frames like CharacterInfo
	local button = CreateFrame("Button", "BFL_ClassicPortraitButton", frame)
	button:SetSize(60, 60)

	-- Ensure it sits above the frame background
	button:SetFrameLevel(frame:GetFrameLevel() + 5)

	button:EnableMouse(true)
	button:RegisterForClicks("LeftButtonUp", "RightButtonUp")

	-- Invisible hit rect (needed for click detection)
	local hitRect = button:CreateTexture(nil, "BACKGROUND")
	hitRect:SetAllPoints()
	hitRect:SetTexture("Interface\\BUTTONS\\WHITE8X8")
	hitRect:SetVertexColor(0, 0, 0, 0) -- Fully transparent

	-- Portrait Icon
	local icon = button:CreateTexture(nil, "ARTWORK")
	icon:SetTexture("Interface\\AddOns\\BetterFriendlist\\Textures\\PortraitIcon")
	icon:SetSize(60, 60)
	icon:SetPoint("CENTER")
	icon:SetTexCoord(0.08, 0.92, 0.08, 0.92)
	button.Icon = icon

	-- Apply circular mask to the icon
	local mask = button:CreateMaskTexture()
	mask:SetTexture("Interface\\CharacterFrame\\TempPortraitAlphaMask", "CLAMPTOBLACKADDITIVE", "CLAMPTOBLACKADDITIVE")
	mask:SetSize(60, 60)
	mask:SetPoint("CENTER")
	icon:AddMaskTexture(mask)

	-- Glow texture for new version notification (hidden by default)
	-- Using CurrentPlayer-Glow from tournamentorganizer (exists in Classic)
	-- Positioned like Retail: TOPLEFT x=-18 y=12, BOTTOMRIGHT x=64 y=-64 relative to 60x60 button
	local glow = button:CreateTexture(nil, "OVERLAY", nil, 7)
	glow:SetTexture("Interface\\PVPFrame\\TournamentOrganizer")
	glow:SetTexCoord(0.3173828125, 0.4423828125, 0.0341796875, 0.1591796875)
	glow:SetBlendMode("ADD")
	glow:ClearAllPoints()
	glow:SetPoint("TOPLEFT", button, "TOPLEFT", -18, 16)
	glow:SetPoint("BOTTOMRIGHT", button, "BOTTOMRIGHT", 64, -64)
	glow:SetVertexColor(1.0, 1.0, 1.0, 1.0) -- White like Retail
	glow:Hide()
	button.Glow = glow

	-- Position relative to main frame
	button:ClearAllPoints()
	button:SetPoint("TOPLEFT", -5, 7)

	-- Click handler
	button:SetScript("OnClick", function(self, btn)
		local Changelog = BFL:GetModule("Changelog")
		if Changelog then
			Changelog:ToggleChangelog()
		end
	end)

	-- Hover handlers
	button:SetScript("OnEnter", function(self)
		local Changelog = BFL:GetModule("Changelog")
		if Changelog then
			Changelog:OnPortraitEnter(self)
		end
	end)

	button:SetScript("OnLeave", function(self)
		GameTooltip:Hide()
	end)

	-- No need to manual sync visibility if it's a child, but let's be safe if it gets parented elsewhere in future
	-- Actually, child frame automatically hides when parent hides.
	-- But we keep the reference logic.

	-- Store reference
	frame.PortraitButton = button
	frame.PortraitIcon = icon

	-- BFL:DebugPrint("Changelog", "Classic PortraitButton created")
end

function Changelog:CheckVersion()
	local DB = BFL:GetModule("DB")
	local lastVersion = DB:Get("lastChangelogVersion", "0.0.0")
	local currentVersion = BFL.VERSION

	if lastVersion ~= currentVersion then
		self:ShowGlow(true)
	else
		self:ShowGlow(false)
	end
end

function Changelog:ShowGlow(show)
	if BetterFriendsFrame and BetterFriendsFrame.PortraitButton then
		local button = BetterFriendsFrame.PortraitButton

		-- Create NewLabel texture if it doesn't exist
		if not button.NewLabel then
			button.NewLabel = button:CreateTexture(nil, "OVERLAY")
			button.NewLabel:SetPoint("CENTER", button, "CENTER", 0, 0)
			if BFL.IsClassic then
				-- Use NewCharacter-Horde texture from CharacterCreate (exists in Classic)
				--button.NewLabel:SetTexture("interface\\encounterjournal\\adventureguide")
				--button.NewLabel:SetTexCoord(0.677734375, 0.75, 0.099609375, 0.171875)
				--button.NewLabel:SetSize(37, 37)  -- Scaled down from 112x58
				button.NewLabel:SetAtlas("communities-icon-invitemail")
				button.NewLabel:SetSize(64, 48)
			else
				button.NewLabel:SetAtlas("CharacterCreate-NewLabel")
				button.NewLabel:SetSize(64, 48)
			end
			-- Desaturate to remove the native color, then color it gold
			button.NewLabel:SetDesaturated(true)
			button.NewLabel:SetVertexColor(1, 0.82, 0, 1)
		end

		if show then
			if button.Glow then
				button.Glow:Show()
			end
			if button.NewLabel then
				button.NewLabel:Show()
			end
		else
			if button.Glow then
				button.Glow:Hide()
			end
			if button.NewLabel then
				button.NewLabel:Hide()
			end
		end
	end
end

function Changelog:ToggleChangelog()
	if not changelogFrame then
		self:CreateChangelogWindow()
	end

	if changelogFrame:IsShown() then
		changelogFrame:Hide()
	else
		changelogFrame:Show()
		-- Update version in DB
		local DB = BFL:GetModule("DB")
		DB:Set("lastChangelogVersion", BFL.VERSION)
		self:ShowGlow(false)
	end
end

function Changelog:OnPortraitEnter(button)
	GameTooltip:SetOwner(button, "ANCHOR_RIGHT")
	GameTooltip:SetText("BetterFriendlist " .. (BFL.VERSION or ""), 1, 0.82, 0)

	local DB = BFL:GetModule("DB")
	local lastVersion = DB:Get("lastChangelogVersion", "0.0.0")

	if lastVersion ~= BFL.VERSION then
		GameTooltip:AddLine(L.CHANGELOG_TOOLTIP_UPDATE, 0, 1, 0)
		GameTooltip:AddLine(L.CHANGELOG_TOOLTIP_CLICK, 1, 1, 1)
	else
		GameTooltip:AddLine(L.CHANGELOG_TOOLTIP_CLICK, 1, 1, 1)
	end

	GameTooltip:Show()
end

function Changelog:Show()
	self:ToggleChangelog()
end

function Changelog:CreateChangelogWindow()
	-- Use ButtonFrameTemplate to match Settings window
	local frame = CreateFrame("Frame", "BetterFriendlistChangelogFrame", UIParent, "ButtonFrameTemplate")
	frame:SetSize(600, 500)
	frame:SetPoint("CENTER")
	frame:SetFrameStrata("DIALOG")
	frame:EnableMouse(true)
	frame:SetMovable(true)
	frame:RegisterForDrag("LeftButton")
	frame:SetScript("OnDragStart", frame.StartMoving)
	frame:SetScript("OnDragStop", frame.StopMovingOrSizing)

	-- Setup ButtonFrameTemplate features
	if frame.portrait then
		frame.portrait:Hide()
	end
	if frame.PortraitContainer then
		frame.PortraitContainer:Hide()
	end

	if ButtonFrameTemplate_HidePortrait then
		ButtonFrameTemplate_HidePortrait(frame)
	end
	if ButtonFrameTemplate_HideAttic then
		ButtonFrameTemplate_HideAttic(frame)
	end

	-- Hide default Inset
	if frame.Inset then
		frame.Inset:Hide()
	end

	SetTitle(frame, L.CHANGELOG_TITLE)

	-- Create MainInset to match Settings style
	local mainInset = CreateFrame("Frame", nil, frame, "BackdropTemplate")
	frame.MainInset = mainInset
	mainInset:SetPoint("TOPLEFT", 10, -25) -- Adjusted y since we don't have tabs
	mainInset:SetPoint("BOTTOMRIGHT", -4, 5) -- Adjusted y since we don't have bottom buttons

	mainInset:SetBackdrop({
		edgeFile = "Interface\\DialogFrame\\UI-DialogBox-Border",
		tile = true,
		tileSize = 16,
		edgeSize = 6,
		insets = { left = 1, right = 1, top = 1, bottom = 1 },
	})
	mainInset:SetBackdropBorderColor(0.4, 0.4, 0.4, 0.8)

	-- Header Frame (Links)
	local headerFrame = CreateFrame("Frame", nil, mainInset)
	headerFrame:SetPoint("TOPLEFT", 1, -1)
	headerFrame:SetPoint("TOPRIGHT", -1, -1)
	headerFrame:SetHeight(40)

	-- Background for header
	local headerBg = headerFrame:CreateTexture(nil, "BACKGROUND")
	headerBg:SetAllPoints()
	headerBg:SetColorTexture(0.1, 0.1, 0.1, 0.5)

	-- Separator line
	local headerLine = headerFrame:CreateTexture(nil, "ARTWORK")
	headerLine:SetHeight(1)
	headerLine:SetPoint("BOTTOMLEFT", 0, 0)
	headerLine:SetPoint("BOTTOMRIGHT", 0, 0)
	headerLine:SetColorTexture(0.4, 0.4, 0.4, 0.8)

	-- Intro Text
	local headerText = headerFrame:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontNormal")
	headerText:SetPoint("LEFT", 10, 0)
	headerText:SetText(L.CHANGELOG_HEADER_COMMUNITY)

	-- Discord Button (Rightmost)
	local discordBtn = CreateFrame("Button", nil, headerFrame, "UIPanelButtonTemplate")
	frame.DiscordButton = discordBtn
	discordBtn:SetSize(130, 24)
	discordBtn:SetPoint("RIGHT", -10, 0)
	discordBtn:SetText(L.CHANGELOG_DISCORD)

	local dcIcon = discordBtn:CreateTexture(nil, "ARTWORK")
	dcIcon:SetSize(14, 14)
	dcIcon:SetPoint("LEFT", 10, 0)
	dcIcon:SetColorTexture(1, 0.82, 0) -- Gold

	local dcMask = discordBtn:CreateMaskTexture()
	dcMask:SetSize(14, 14)
	dcMask:SetPoint("LEFT", 10, 0)
	dcMask:SetTexture("Interface\\AddOns\\BetterFriendlist\\Icons\\discord.blp")
	dcIcon:AddMaskTexture(dcMask)

	discordBtn:SetScript("OnClick", function()
		ShowCopyDialog("https://discord.gg/dpaV8vh3w3", L.CHANGELOG_POPUP_DISCORD)
	end)

	-- GitHub Button (Left of Discord)
	local githubBtn = CreateFrame("Button", nil, headerFrame, "UIPanelButtonTemplate")
	frame.GitHubButton = githubBtn
	githubBtn:SetSize(130, 24)
	githubBtn:SetPoint("RIGHT", discordBtn, "LEFT", -10, 0)
	githubBtn:SetText(L.CHANGELOG_GITHUB)

	local ghIcon = githubBtn:CreateTexture(nil, "ARTWORK")
	ghIcon:SetSize(14, 14)
	ghIcon:SetPoint("LEFT", 10, 0)
	ghIcon:SetColorTexture(1, 0.82, 0) -- Gold

	local ghMask = githubBtn:CreateMaskTexture()
	ghMask:SetSize(14, 14)
	ghMask:SetPoint("LEFT", 10, 0)
	ghMask:SetTexture("Interface\\AddOns\\BetterFriendlist\\Icons\\github.blp")
	ghIcon:AddMaskTexture(ghMask)

	githubBtn:SetScript("OnClick", function()
		ShowCopyDialog("https://github.com/Hayato2846/BetterFriendlist/issues", L.CHANGELOG_POPUP_GITHUB)
	end)

	-- Ko-fi Button (Left of GitHub)
	local kofiBtn = CreateFrame("Button", nil, headerFrame, "UIPanelButtonTemplate")
	frame.KoFiButton = kofiBtn
	kofiBtn:SetSize(130, 24)
	kofiBtn:SetPoint("RIGHT", githubBtn, "LEFT", -10, 0)
	kofiBtn:SetText(L.CHANGELOG_SUPPORT)

	local kofiIcon = kofiBtn:CreateTexture(nil, "ARTWORK")
	kofiIcon:SetSize(14, 14)
	kofiIcon:SetPoint("LEFT", 10, 0)
	kofiIcon:SetColorTexture(1, 0.82, 0) -- Gold

	local kofiMask = kofiBtn:CreateMaskTexture()
	kofiMask:SetSize(14, 14)
	kofiMask:SetPoint("LEFT", 10, 0)
	kofiMask:SetTexture("Interface\\AddOns\\BetterFriendlist\\Icons\\kofi.blp")
	kofiIcon:AddMaskTexture(kofiMask)

	kofiBtn:SetScript("OnClick", function()
		ShowCopyDialog("https://ko-fi.com/hayato2846", L.CHANGELOG_POPUP_SUPPORT)
	end)

	-- ScrollFrame
	local scrollFrame

	if not BFL.IsClassic and ScrollUtil and ScrollUtil.InitScrollFrameWithScrollBar then
		-- Retail: Modern ScrollUtil
		scrollFrame = CreateFrame("ScrollFrame", nil, frame)
		frame.ScrollFrame = scrollFrame
		scrollFrame:SetPoint("TOPLEFT", mainInset, "TOPLEFT", 8, -45) -- Adjusted for header
		scrollFrame:SetPoint("BOTTOMRIGHT", mainInset, "BOTTOMRIGHT", -25, 5)

		-- Mixin CallbackRegistry (Required for ScrollUtil)
		if not scrollFrame.RegisterCallback then
			Mixin(scrollFrame, CallbackRegistryMixin)
			scrollFrame:OnLoad()
		end

		-- Create ScrollBar (EventFrame inheriting MinimalScrollBar)
		local scrollBar = CreateFrame("EventFrame", nil, frame, "MinimalScrollBar")
		frame.ScrollBar = scrollBar
		scrollBar:SetPoint("TOPLEFT", scrollFrame, "TOPRIGHT", 6, 0)
		scrollBar:SetPoint("BOTTOMLEFT", scrollFrame, "BOTTOMRIGHT", 6, 0)

		ScrollUtil.InitScrollFrameWithScrollBar(scrollFrame, scrollBar)
	else
		-- Classic: Legacy UIPanelScrollFrameTemplate
		scrollFrame = CreateFrame("ScrollFrame", nil, frame, "UIPanelScrollFrameTemplate")
		frame.ScrollFrame = scrollFrame
		scrollFrame:SetPoint("TOPLEFT", mainInset, "TOPLEFT", 8, -45) -- Adjusted for header
		scrollFrame:SetPoint("BOTTOMRIGHT", mainInset, "BOTTOMRIGHT", -25, 5)
	end

	-- Content
	local content = CreateFrame("Frame", nil, scrollFrame)
	content:SetSize(560, 1000) -- Height will be adjusted
	scrollFrame:SetScrollChild(content)

	local entries = ParseChangelog(CHANGELOG_TEXT)
	local entryFrames = {}
	local previousFrame = nil

	for i, entryData in ipairs(entries) do
		local entryFrame = CreateFrame("Frame", nil, content)
		entryFrame:SetWidth(530)

		if previousFrame then
			entryFrame:SetPoint("TOPLEFT", previousFrame, "BOTTOMLEFT", 0, -5)
		else
			entryFrame:SetPoint("TOPLEFT", 0, -5)
		end

		-- Header
		local header = CreateFrame("Button", nil, entryFrame)
		header:SetSize(530, 20)
		header:SetPoint("TOPLEFT")

		-- Icon
		local icon = header:CreateTexture(nil, "ARTWORK")
		icon:SetSize(16, 16)
		icon:SetPoint("LEFT", 5, 0)
		icon:SetTexture("Interface\\AddOns\\BetterFriendlist\\Icons\\chevron-right.blp")

		-- Title
		local title = header:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontNormal")
		title:SetPoint("LEFT", icon, "RIGHT", 5, 0)
		title:SetText(string.format(L.CHANGELOG_HEADER_VERSION, entryData.version))

		-- Date
		local dateLabel = header:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontNormal")
		dateLabel:SetWidth(85) -- Fixed width for alignment (fits YYYY-MM-DD)
		dateLabel:SetJustifyH("LEFT") -- Left align for clean column start
		dateLabel:SetPoint("RIGHT", header, "RIGHT", -5, 0)
		dateLabel:SetText(entryData.date)

		-- Content
		local entryContent = CreateFrame("Frame", nil, entryFrame)
		entryContent:SetWidth(530)
		entryContent:SetPoint("TOPLEFT", header, "BOTTOMLEFT", 0, -5)

		local currentY = -5
		for _, block in ipairs(entryData.blocks) do
			if block.type == "h1" then
				local fs = entryContent:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontLarge")
				fs:SetPoint("TOPLEFT", 10, currentY)
				fs:SetWidth(510)
				fs:SetJustifyH("LEFT")
				fs:SetText(block.content)
				currentY = currentY - fs:GetStringHeight() - 10
			elseif block.type == "h3" then
				local fs = entryContent:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontNormal")
				fs:SetPoint("TOPLEFT", 10, currentY)
				fs:SetWidth(510)
				fs:SetJustifyH("LEFT")
				fs:SetText(block.content)
				fs:SetTextColor(1, 0.82, 0) -- Gold
				currentY = currentY - fs:GetStringHeight() - 5
			elseif block.type == "h4" then
				local fs = entryContent:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontNormal")
				fs:SetPoint("TOPLEFT", 10, currentY)
				fs:SetWidth(510)
				fs:SetJustifyH("LEFT")
				fs:SetText(block.content)
				fs:SetTextColor(0.8, 0.8, 0.8) -- Light Gray
				currentY = currentY - fs:GetStringHeight() - 5
			elseif block.type == "separator" then
				local tex = entryContent:CreateTexture(nil, "ARTWORK")
				tex:SetTexture("Interface\\Common\\UI-TooltipDivider-Transparent")
				tex:SetPoint("TOPLEFT", 10, currentY)
				tex:SetSize(510, 8)
				currentY = currentY - 15
			elseif block.type == "list_item" then
				-- Bullet
				local bullet = entryContent:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontHighlight")
				bullet:SetPoint("TOPLEFT", 15, currentY)
				bullet:SetText("•")

				-- Text
				local fs = entryContent:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontHighlight")
				fs:SetPoint("TOPLEFT", 30, currentY)
				fs:SetWidth(490)
				fs:SetJustifyH("LEFT")
				fs:SetText(block.content)

				currentY = currentY - math.max(fs:GetStringHeight(), bullet:GetStringHeight()) - 5
			else -- text
				local fs = entryContent:CreateFontString(nil, "OVERLAY", "BetterFriendlistFontHighlight")
				fs:SetPoint("TOPLEFT", 10, currentY)
				fs:SetWidth(510)
				fs:SetJustifyH("LEFT")
				fs:SetText(block.content)
				currentY = currentY - fs:GetStringHeight() - 5
			end
		end

		local contentHeight = math.abs(currentY)
		entryContent:SetHeight(contentHeight)

		-- Toggle Logic
		local isExpanded = (i == 1)

		local function UpdateState()
			if isExpanded then
				entryContent:Show()
				entryFrame:SetHeight(20 + 5 + contentHeight)
				icon:SetTexture("Interface\\AddOns\\BetterFriendlist\\Icons\\chevron-down.blp")
			else
				entryContent:Hide()
				entryFrame:SetHeight(20)
				icon:SetTexture("Interface\\AddOns\\BetterFriendlist\\Icons\\chevron-right.blp")
			end
		end

		header:SetScript("OnClick", function()
			isExpanded = not isExpanded
			UpdateState()
			RecalculateHeight(content, entryFrames)
		end)

		UpdateState()

		table.insert(entryFrames, entryFrame)
		previousFrame = entryFrame
	end

	RecalculateHeight(content, entryFrames)

	changelogFrame = frame
	frame:Hide()
end
