local addonname, shared = ...
---@cast shared HeimdallShared
---@cast addonname string
local ModuleName = "MinimapTagger"

---@diagnostic disable-next-line: missing-fields
shared.MinimapTagger = {}
function shared.MinimapTagger.Init()
	local alertFramePool = {}
	local alertFramePoolMaxSize = 20
	---@param x number
	---@param y number
	local function PlantAlert(x, y)
		local frame = nil
		for _, alertFrame in ipairs(alertFramePool) do
			if not alertFrame.custom.busy then
				frame = alertFrame
				break
			end
		end

		local w, h = BattlefieldMinimap:GetSize()
		w, h = w * BattlefieldMinimap:GetEffectiveScale(), h * BattlefieldMinimap:GetEffectiveScale()
		local maxSize = w > h and w or h
		if Heimdall_Data.config.minimapTagger.debug then
			print(string.format("[%s] Minimap size: %d", ModuleName, maxSize))
		end
		local iconSize = maxSize * 0.05

		x, y = x / 100, y / 100
		-- Could do with how... I have no idea, but this seems more accurate than without
		--x, y = x - 0.01, y - 0.01
		local offsetx, offsety = w * x, h * y
		if Heimdall_Data.config.minimapTagger.debug then
			print(string.format("[%s] Alert position: %d, %d", ModuleName, x, y))
			print(string.format("[%s] Alert offset: %d, %d", ModuleName, offsetx, offsety))
		end
		if not frame and #alertFramePool >= alertFramePoolMaxSize then
			if Heimdall_Data.config.minimapTagger.debug then
				print(string.format("[%s] Alert frame pool is full, skipping", ModuleName))
			end
			return
		end

		if not frame then
			if Heimdall_Data.config.minimapTagger.debug then
				print(string.format("[%s] Creating new alert frame", ModuleName))
			end
			frame = CreateFrame("Frame")
			frame:SetSize(iconSize, iconSize)
			frame:SetFrameStrata("HIGH")
			frame:SetFrameLevel(100)
			frame.custom = { busy = true }
			local alertFrameTexture = frame:CreateTexture(nil, "ARTWORK")
			alertFrameTexture:SetAllPoints(frame)
			alertFrameTexture:SetColorTexture(1, 0, 0, 0.5)
			alertFrameTexture:SetTexture("Interface\\AddOns\\WeakAuras\\PowerAurasMedia\\Auras\\Aura27")
			table.insert(alertFramePool, frame)
			if Heimdall_Data.config.minimapTagger.debug then
				print(string.format("[%s] Alert frame created, pool size: %d", ModuleName, #alertFramePool))
			end
		end

		frame:SetPoint("CENTER", BattlefieldMinimap, "TOPLEFT", offsetx, -offsety)
		if Heimdall_Data.config.minimapTagger.debug then
			print(string.format("[%s] Alert frame created, OnUpdate hooked", ModuleName))
		end
		frame:SetScript("OnShow", function(self)
			self:SetAlpha(1)
			self.custom.busy = true
			self.custom.progress = 0
			self:SetScript("OnUpdate", function(self, elapsed)
				self.custom.progress = self.custom.progress + elapsed
				local progress = self.custom.progress / Heimdall_Data.config.minimapTagger.ttl
				if Heimdall_Data.config.minimapTagger.debug then
					print(string.format("[%s] Alert progress%%: %f", ModuleName, progress))
					print(string.format("[%s] Alert progress: %f", ModuleName, self.custom.progress))
					print(string.format("[%s] Alert ttl: %f", ModuleName, Heimdall_Data.config.minimapTagger.ttl))
				end
				self:SetAlpha(1 - progress)

				if progress >= 1 then
					self:Hide()
					self.custom.busy = false
					self:SetScript("OnUpdate", nil)
				end
			end)
		end)
		frame:Show()
	end

	local frame = CreateFrame("Frame")
	frame:RegisterEvent("PLAYER_ENTERING_WORLD")
	frame:SetScript("OnEvent", function(self, event, addon)
		if not BattlefieldMinimap then
			if Heimdall_Data.config.minimapTagger.debug then
				print(string.format("[%s] BattlefieldMinimap not found", ModuleName))
			end
			return
		end
		if not Heimdall_Data.config.minimapTagger.enabled then
			if Heimdall_Data.config.minimapTagger.debug then
				print(string.format("[%s] MinimapTagger is disabled", ModuleName))
			end
			return
		end
		--local scale = Heimdall_Data.config.minimapTagger.scale
		local scale = 4
		BattlefieldMinimap:SetScale(scale)
		BattlefieldMinimap:SetMovable(true)
		BattlefieldMinimap:EnableMouse(true)
		BattlefieldMinimap:RegisterForDrag("LeftButton")
		BattlefieldMinimap:SetScript("OnDragStart", function(self) self:StartMoving() end)
		BattlefieldMinimap:SetScript("OnDragStop", function(self) self:StopMovingOrSizing() end)
		BattlefieldMinimapBackground:Hide()
		BattlefieldMinimapCloseButton:Hide()
		BattlefieldMinimapCorner:Hide()
		BattlefieldMinimap:HookScript("OnShow", function(self)
			for i = 1, 10 do
				local x = math.random()
				local y = math.random()
				PlantAlert(x * 100, y * 100)
			end
		end)
		BattlefieldMinimap:HookScript("OnHide", function(self)
			for _, alertFrame in ipairs(alertFramePool) do
				alertFrame:Hide()
				alertFrame.custom.busy = false
			end
		end)
		BattlefieldMinimap:Hide()
		BattlefieldMinimap:Show()
	end)

	print("[Heimdall] MinimapTagger loaded")
end

SlashCmdList["HEIMDALL_MINIMAPTAGGER"] = function(args)
	shared.MinimapTagger.Init()
end
SLASH_HEIMDALL_MINIMAPTAGGER1 = "/mf"