-- UnitFrames.lua
local _;
local pairs = pairs;
local InCombatLockdown = InCombatLockdown;
local CTimerAfter = C_Timer.After;

local updateAuraTooltips = OmaUFAuras.UpdateAuraTooltips;

local UnitFrames = CreateFrame("Frame", "OmaUnitFrame", UIParent);

local M = {};
OmaUnitFrames = M;

local function initialize()
    UnitFrames:SetFrameStrata("LOW");
    UnitFrames:SetPoint("CENTER");
    UnitFrames:SetWidth(1);
    UnitFrames:SetHeight(1);
    local player = M.InitializePlayer(UnitFrames);
    M.InitializePet(player);
    local target = M.InitializeTarget(UnitFrames);
    --M.InitializeToT(target); -- might not do this
    M.InitializeBoss(UnitFrames);
end

local hidden = false;
local function hideBlizzardFrames()
    if hidden then return end
    hidden = true;

    local frames = {PlayerFrame, TargetFrame, TargetFrameToT, PetFrame,
        PlayerFrameAlternateManaBar, ComboFrame, PriestBarFrame, RuneFrame,
        WarlockPowerFrame, MonkHarmonyBarFrame, PaladinPowerBarFrame,
        MageArcaneChargesFrame, CastingBarFrame, PetCastingBarFrame};
    for i = 1,MAX_BOSS_FRAMES do
        table.insert(frames, _G["Boss"..i.."TargetFrame"]);
        table.insert(frames, _G["Boss"..i.."TargetFrameHealthBar"]);
        table.insert(frames, _G["Boss"..i.."TargetFrameManaBar"]);
        -- keep boss frame powerBarAlt
    end
    for _, frame in pairs(frames) do
        frame:UnregisterAllEvents();
        if frame.healthbar then frame.healthbar:UnregisterAllEvents() end
        if frame.manabar then frame.manabar:UnregisterAllEvents() end
        if frame.spellbar then frame.spellbar:UnregisterAllEvents() end
        --if frame.powerBarAlt then frame.powerBarAlt:UnregisterAllEvents() end
        frame:Hide();
    end

    -- from ShadowedUF, re-register vehicle events for default auras
    PlayerFrame:RegisterEvent("PLAYER_ENTERING_WORLD");
    PlayerFrame:RegisterEvent("UNIT_ENTERING_VEHICLE");
    PlayerFrame:RegisterEvent("UNIT_ENTERED_VEHICLE");
    PlayerFrame:RegisterEvent("UNIT_EXITING_VEHICLE");
    PlayerFrame:RegisterEvent("UNIT_EXITED_VEHICLE");
    PlayerFrame:SetMovable(true);
    PlayerFrame:SetUserPlaced(true);
    PlayerFrame:SetDontSavePosition(true);
end

-- untested, not playing arena, from ShadowedUF
local hiddenFrame = CreateFrame("Frame");
hiddenFrame:Hide();
local arenaHidden = false;
local function hideArenaFrames()
    -- not run if /reload happens in combat, may cause problems?
    if not arenaHidden and not InCombatLockdown() then
        arenaHidden = true;
        ArenaEnemyFrames:UnregisterAllEvents();
        ArenaEnemyFrames:SetParent(hiddenFrame);
        ArenaPrepFrames:UnregisterAllEvents();
        ArenaPrepFrames:SetParent(hiddenFrame);
        SetCVar("showArenaEnemyFrames", 0, "SHOW_ARENA_ENEMY_FRAMES_TEXT");
    end
end

local function updateTooltipFuncs()
    -- let MoveAnything hook these to anchor tooltip elsewhere
    M.UpdatePlayerTooltips();
    M.UpdatePetTooltips();
    M.UpdateTargetTooltips();
    M.UpdateBossTooltips();
    updateAuraTooltips();
end

UnitFrames:RegisterEvent("PLAYER_LOGIN");
UnitFrames:RegisterEvent("PLAYER_ENTERING_WORLD");
UnitFrames:RegisterEvent("ADDON_LOADED");
UnitFrames:SetScript("OnEvent", function(self, event, addon)
    if event == "PLAYER_ENTERING_WORLD" then
        CTimerAfter(0.01, updateTooltipFuncs);
    elseif event == "ADDON_LOADED" and addon == "Blizzard_ArenaUI" then
        hideArenaFrames();
    elseif event == "PLAYER_LOGIN" then
        OmaUFLoadChar();
        hideBlizzardFrames();
        initialize();
    end
end);