local ElvSkins
if ElvUI then
    local E = unpack(ElvUI)
    ElvSkins = E:GetModule("Skins")
end

local panel = CreateFrame("Frame")
panel.name = "HideCoAUI"

local title = panel:CreateFontString(nil, "ARTWORK", "GameFontNormalLarge")
title:SetPoint("TOPLEFT", 16, -16)
title:SetText("HideCoAUI")

local sidebar = CreateFrame("Frame", nil, panel)
sidebar:SetPoint("TOPLEFT", title, "BOTTOMLEFT", 0, -20)
sidebar:SetPoint("BOTTOMLEFT", panel, "BOTTOMLEFT", 16, 16)
sidebar:SetWidth(150)

local content = CreateFrame("Frame", nil, panel)
content:SetPoint("TOPLEFT", sidebar, "TOPRIGHT", 16, 0)
content:SetPoint("BOTTOMRIGHT", panel, "BOTTOMRIGHT", -16, 16)

local classesContent = CreateFrame("Frame", nil, content)
classesContent:SetAllPoints(content)

local characterOverrideContent = CreateFrame("Frame", nil, content)
characterOverrideContent:SetAllPoints(content)
characterOverrideContent:Hide()

local aboutContent = CreateFrame("Frame", nil, content)
aboutContent:SetAllPoints(content)
aboutContent:Hide()

-- CLASSES TAB --

local classesTitle = classesContent:CreateFontString(nil, "ARTWORK", "GameFontNormalLarge")
classesTitle:SetPoint("TOPLEFT", classesContent, "TOPLEFT", 0, 0)

local titleFont, titleSize = classesTitle:GetFont()
classesTitle:SetFont(titleFont, titleSize + 4, "OUTLINE")
classesTitle:SetText("Classes")

local hideAllButton = CreateFrame("Button", "HideCoAHideAllButton", classesContent, "UIPanelButtonTemplate")
hideAllButton:SetPoint("TOPLEFT", classesTitle, "BOTTOMLEFT", 0, -12)
hideAllButton:SetSize(100, 22)
hideAllButton:SetText("Hide All")

local showAllButton = CreateFrame("Button", "HideCoAShowAllButton", classesContent, "UIPanelButtonTemplate")
showAllButton:SetPoint("LEFT", hideAllButton, "RIGHT", 8, 0)
showAllButton:SetSize(100, 22)
showAllButton:SetText("Show All")

if ElvSkins then
    ElvSkins:HandleButton(hideAllButton)
    ElvSkins:HandleButton(showAllButton)
end

local classDropDown = CreateFrame("Frame", "HideCoAClassDropDown", classesContent, "UIDropDownMenuTemplate")
classDropDown:SetPoint("TOPLEFT", hideAllButton, "BOTTOMLEFT", -16, -16)

if ElvSkins then
    ElvSkins:HandleDropDownBox(classDropDown, 140)
end

local checks = {}
local selectedClass = nil

local previousAnchor = classDropDown
local previousSpacing = -16
local previousXOffset = 16

for _, frameName in ipairs(HideCoA.FRAMES) do

    local check = CreateFrame("CheckButton", "HideCoAClassCheck" .. frameName, classesContent, "InterfaceOptionsCheckButtonTemplate")
    check:SetPoint("TOPLEFT", previousAnchor, "BOTTOMLEFT", previousXOffset, previousSpacing)
    _G[check:GetName() .. "Text"]:SetText("Hide " .. frameName)

    check.frameName = frameName

    if ElvSkins then
        ElvSkins:HandleCheckBox(check)
    end

    check:SetScript("OnClick", function(self)

        if not selectedClass then
            return
        end

        HideCoA.GetActiveClassSettings()[selectedClass][self.frameName] = self:GetChecked() and true or false
        HideCoA.ApplySetting()

    end)

    checks[frameName] = check
    previousAnchor = check
    previousSpacing = -8
    previousXOffset = 0

end

local function SelectClass(class)

    selectedClass = class

    local displayName = (LOCALIZED_CLASS_NAMES_MALE and LOCALIZED_CLASS_NAMES_MALE[class]) or class

    for _, frameName in ipairs(HideCoA.FRAMES) do
        checks[frameName]:SetChecked(HideCoA.GetActiveClassSettings()[class][frameName])
    end

    UIDropDownMenu_SetText(classDropDown, displayName)

end

local function ClassDropDown_OnClick(self)
    SelectClass(self.value)
end

UIDropDownMenu_Initialize(classDropDown, function(self, level)

    for _, class in ipairs(HideCoA.CUSTOM_CLASSES) do

        local displayName = (LOCALIZED_CLASS_NAMES_MALE and LOCALIZED_CLASS_NAMES_MALE[class]) or class

        local info = UIDropDownMenu_CreateInfo()
        info.text = displayName
        info.value = class
        info.func = ClassDropDown_OnClick
        info.checked = (selectedClass == class)

        UIDropDownMenu_AddButton(info, level)

    end

end)

UIDropDownMenu_SetWidth(classDropDown, 140)

hideAllButton:SetScript("OnClick", function()
    HideCoA.HideAllFrames()
    if selectedClass then
        SelectClass(selectedClass)
    end
end)

showAllButton:SetScript("OnClick", function()
    HideCoA.ShowAllFrames()
    if selectedClass then
        SelectClass(selectedClass)
    end
end)

-- CHARACTER OVERRIDE TAB --

local characterOverrideTitle = characterOverrideContent:CreateFontString(nil, "ARTWORK", "GameFontNormalLarge")
characterOverrideTitle:SetPoint("TOPLEFT", characterOverrideContent, "TOPLEFT", 0, 0)
characterOverrideTitle:SetFont(titleFont, titleSize + 4, "OUTLINE")
characterOverrideTitle:SetText("Character Override")

local overrideEnabledCheck = CreateFrame("CheckButton", "HideCoAOverrideEnabledCheck", characterOverrideContent, "InterfaceOptionsCheckButtonTemplate")
overrideEnabledCheck:SetPoint("TOPLEFT", characterOverrideTitle, "BOTTOMLEFT", 0, -12)
_G[overrideEnabledCheck:GetName() .. "Text"]:SetText("Override class options for this character.")

if ElvSkins then
    ElvSkins:HandleCheckBox(overrideEnabledCheck)
end

local overrideChecks = {}

local overridePreviousAnchor = overrideEnabledCheck
local overridePreviousSpacing = -16

for _, frameName in ipairs(HideCoA.FRAMES) do

    local check = CreateFrame("CheckButton", "HideCoAOverrideCheck" .. frameName, characterOverrideContent, "InterfaceOptionsCheckButtonTemplate")
    check:SetPoint("TOPLEFT", overridePreviousAnchor, "BOTTOMLEFT", 0, overridePreviousSpacing)
    _G[check:GetName() .. "Text"]:SetText("Hide " .. frameName)

    check.frameName = frameName

    if ElvSkins then
        ElvSkins:HandleCheckBox(check)
    end

    check:SetScript("OnClick", function(self)
        HideCoA.SetCharacterOverrideFrameHidden(self.frameName, self:GetChecked() and true or false)
    end)

    overrideChecks[frameName] = check
    overridePreviousAnchor = check
    overridePreviousSpacing = -8

end

local function SetOverrideCheckEnabled(check, enabled)

    if enabled then
        check:Enable()
        _G[check:GetName() .. "Text"]:SetTextColor(1, 1, 1)
    else
        check:Disable()
        _G[check:GetName() .. "Text"]:SetTextColor(0.5, 0.5, 0.5)
    end

end

local function RefreshCharacterOverrideTab()

    local override = HideCoA.GetCharacterOverride()

    overrideEnabledCheck:SetChecked(override.enabled)

    for _, frameName in ipairs(HideCoA.FRAMES) do
        overrideChecks[frameName]:SetChecked(override.frameSettings[frameName])
        SetOverrideCheckEnabled(overrideChecks[frameName], override.enabled)
    end

end

overrideEnabledCheck:SetScript("OnClick", function(self)
    HideCoA.SetCharacterOverrideEnabled(self:GetChecked() and true or false)
    RefreshCharacterOverrideTab()
end)

-- ABOUT TAB --

local aboutTitle = aboutContent:CreateFontString(nil, "ARTWORK", "GameFontNormalLarge")
aboutTitle:SetPoint("TOPLEFT", aboutContent, "TOPLEFT", 0, 0)
aboutTitle:SetFont(titleFont, titleSize + 4, "OUTLINE")
aboutTitle:SetText("About")

-- SIDEBAR TABS --

local TAB_HEIGHT = 18

local function CreateTabButton(name, index)

    local button = CreateFrame("Button", "HideCoATab" .. name, sidebar)
    button:SetHeight(TAB_HEIGHT)
    button:SetPoint("TOPLEFT", sidebar, "TOPLEFT", 0, -(index - 1) * TAB_HEIGHT)
    button:SetPoint("RIGHT", sidebar, "RIGHT", 0, 0)

    local selectedTexture = button:CreateTexture(nil, "BACKGROUND")
    selectedTexture:SetAllPoints()
    selectedTexture:SetTexture("Interface\\QuestFrame\\UI-QuestTitleHighlight")
    selectedTexture:SetBlendMode("ADD")
    selectedTexture:Hide()
    button.selectedTexture = selectedTexture

    button:SetHighlightTexture("Interface\\QuestFrame\\UI-QuestTitleHighlight", "ADD")

    local text = button:CreateFontString(nil, "OVERLAY", "GameFontNormalSmall")
    text:SetPoint("LEFT", 4, 0)
    text:SetText(name)
    text:SetTextColor(1, 0.82, 0)
    button.text = text

    return button

end

local classesTabButton = CreateTabButton("Classes", 1)
local characterOverrideTabButton = CreateTabButton("Character Override", 2)
local aboutTabButton = CreateTabButton("About", 3)

local sidebarTabButtons = { classesTabButton, characterOverrideTabButton, aboutTabButton }

local function SelectTab(activeButton, contentFrame)

    classesContent:Hide()
    characterOverrideContent:Hide()
    aboutContent:Hide()

    contentFrame:Show()

    for _, button in ipairs(sidebarTabButtons) do
        if button == activeButton then
            button.selectedTexture:Show()
            button.text:SetTextColor(1, 1, 1)
        else
            button.selectedTexture:Hide()
            button.text:SetTextColor(1, 0.82, 0)
        end
    end

end

local function ShowClassesTab()
    SelectTab(classesTabButton, classesContent)
    SelectClass(selectedClass or HideCoA.CUSTOM_CLASSES[1])
end

local function ShowCharacterOverrideTab()
    SelectTab(characterOverrideTabButton, characterOverrideContent)
    RefreshCharacterOverrideTab()
end

local function ShowAboutTab()
    SelectTab(aboutTabButton, aboutContent)
end

classesTabButton:SetScript("OnClick", ShowClassesTab)
characterOverrideTabButton:SetScript("OnClick", ShowCharacterOverrideTab)
aboutTabButton:SetScript("OnClick", ShowAboutTab)

panel:SetScript("OnShow", ShowClassesTab)

InterfaceOptions_AddCategory(panel)