local CONFIG = require("Scripts\\InvasionNotifier\\Config")
local THEME = require("Scripts\\MasterHub\\Theme")

local InvasionNotifier = {
	Visible = false,
	Rows = {},
	Selected = 1,
	Mode = "list",
	Tick = 0,
	PanelX = nil,
	PanelY = nil,
	CompactX = nil,
	CompactY = nil,
	Minimized = true,
	Dragging = false,
	DragMoved = false,
	DragOffsetX = 0,
	DragOffsetY = 0,
	Buttons = {},
	ModelCache = {},
}

BridgeFunctionAttach("MainLoader", "InvasionNotifier_Preload")
BridgeFunctionAttach("MainInterfaceProcThread", "InvasionNotifier_Render")
BridgeFunctionAttach("UpdateMouseEvent", "InvasionNotifier_UpdateMouse")

local function clamp(value, minValue, maxValue)
	value = tonumber(value) or minValue

	if value < minValue then return minValue end
	if value > maxValue then return maxValue end

	return value
end

local function trimPacketString(value)
	value = tostring(value or "")
	value = string.gsub(value, "%z", "")
	value = string.gsub(value, "%s+$", "")
	return value
end

local function drawRect(x, y, w, h, color)
	if w <= 0 or h <= 0 then
		return
	end

	SetBlend(1)
	glColor4f(color[1], color[2], color[3], color[4])
	DrawBar(x, y, w, h)
	EndDrawBar()
end

local function drawSteppedRect(x, y, w, h, color)
	drawRect(x + 3, y, w - 6, h, color)
	drawRect(x + 1, y + 2, w - 2, h - 4, color)
	drawRect(x, y + 4, w, h - 8, color)
end

local function isMouseOver(x, y, w, h)
	local mouseX = MousePosX()
	local mouseY = MousePosY()

	return mouseX >= x and mouseX <= (x + w) and mouseY >= y and mouseY <= (y + h)
end

local function blockGameClick()
	if DisableCLick ~= nil then
		DisableCLick()
	elseif DisableClickClient ~= nil then
		DisableClickClient()
	end
end

local function resetMouseLeft()
	if ResetMouseL ~= nil then
		ResetMouseL()
	end
end

local function usingMasterHub()
	return (tonumber(CONFIG.UseMasterHub) or 0) == 1 and MasterHub ~= nil
end

local function mapIsOpen()
	if CheckWindowOpen == nil then
		return false
	end

	local full = (UIFullMap ~= nil and CheckWindowOpen(UIFullMap)) or 0
	local move = (UIMoveList ~= nil and CheckWindowOpen(UIMoveList)) or 0

	return full == 1 or move == 1
end

local function formatTime(seconds)
	seconds = math.max(0, tonumber(seconds) or 0)
	local minutes = math.floor(seconds / 60)
	local rest = seconds % 60

	return string.format("%dm %02ds", minutes, rest)
end

local function shortText(value, maxLength)
	value = tostring(value or "")

	if string.len(value) <= maxLength then
		return value
	end

	return string.sub(value, 1, maxLength - 2) .. ".."
end

local function detailNeedsBossLine(row)
	return row ~= nil and row.invasionName ~= "" and row.bossName ~= "" and row.invasionName ~= row.bossName
end

local function getPanelSize()
	local panel = CONFIG.Panel or {}
	local width = tonumber(panel.Width) or 260
	local rowHeight = tonumber(panel.RowHeight) or 22

	if InvasionNotifier.Mode == "detail" then
		local row = InvasionNotifier.Rows[InvasionNotifier.Selected]
		local base = 125

		if detailNeedsBossLine(row) then
			base = base + 15
		end

		return width, base
	end

	return width, 36 + (#InvasionNotifier.Rows * rowHeight) + 8
end

local function getPanelLayout()
	local panel = CONFIG.Panel or {}
	local width, height = getPanelSize()
	local screenHeight = tonumber(CONFIG.ScreenHeight) or 480
	local defaultX = tonumber(panel.PosX) or 18
	local defaultY = tonumber(panel.PosY) or 116

	InvasionNotifier.PanelX = clamp(tonumber(InvasionNotifier.PanelX) or defaultX, 0, math.max(0, GetWideX() - width))
	InvasionNotifier.PanelY = clamp(tonumber(InvasionNotifier.PanelY) or defaultY, 0, math.max(0, screenHeight - height))

	return InvasionNotifier.PanelX, InvasionNotifier.PanelY, width, height
end

local function getCompactLayout()
	local panel = CONFIG.Panel or {}
	local width = tonumber(panel.CompactWidth) or 42
	local height = tonumber(panel.CompactHeight) or 22
	local screenHeight = tonumber(CONFIG.ScreenHeight) or 480
	local defaultX = GetWideX() - width - 18
	local defaultY = tonumber(panel.PosY) or 116

	InvasionNotifier.CompactX = clamp(tonumber(InvasionNotifier.CompactX) or defaultX, 0, math.max(0, GetWideX() - width))
	InvasionNotifier.CompactY = clamp(tonumber(InvasionNotifier.CompactY) or defaultY, 0, math.max(0, screenHeight - height))

	return InvasionNotifier.CompactX, InvasionNotifier.CompactY, width, height
end

function InvasionNotifier.Clear()
	InvasionNotifier.Visible = false
	InvasionNotifier.Rows = {}
	InvasionNotifier.Selected = 1
	InvasionNotifier.Mode = "list"
	InvasionNotifier.Tick = 0
	InvasionNotifier.Dragging = false
	InvasionNotifier.DragMoved = false
end

function InvasionNotifier.ReadRows(packetName)
	local rows = {}
	local count = tonumber(GetBytePacket(packetName, -1)) or 0

	for i = 1, count do
		local monsterIndex = tonumber(GetWordPacket(packetName, -1)) or 0
		local bossClass = tonumber(GetWordPacket(packetName, -1)) or 0
		local map = tonumber(GetWordPacket(packetName, -1)) or 0
		local x = tonumber(GetBytePacket(packetName, -1)) or 0
		local y = tonumber(GetBytePacket(packetName, -1)) or 0
		local remaining = tonumber(GetWordPacket(packetName, -1)) or 0
		local duration = tonumber(GetWordPacket(packetName, -1)) or 0
		local wcp = tonumber(GetWordPacket(packetName, -1)) or 0
		local gp = tonumber(GetWordPacket(packetName, -1)) or 0
		local percent = tonumber(GetWordPacket(packetName, -1)) or 0
		local attackers = tonumber(GetBytePacket(packetName, -1)) or 0
		local invasionName = trimPacketString(GetCharPacketLength(packetName, -1, CONFIG.NameLength))
		local bossName = trimPacketString(GetCharPacketLength(packetName, -1, CONFIG.BossLength))
		local mapName = trimPacketString(GetCharPacketLength(packetName, -1, CONFIG.MapLength))

		table.insert(rows, {
			monsterIndex = monsterIndex,
			bossClass = bossClass,
			map = map,
			x = x,
			y = y,
			remaining = remaining,
			duration = duration,
			wcp = wcp,
			gp = gp,
			percent = percent,
			attackers = attackers,
			invasionName = invasionName,
			bossName = bossName,
			mapName = mapName,
		})
	end

	InvasionNotifier.Rows = rows
	InvasionNotifier.Selected = clamp(InvasionNotifier.Selected, 1, math.max(1, #rows))
	InvasionNotifier.Visible = #rows > 0
	InvasionNotifier.Tick = 0

	if #rows == 0 then
		InvasionNotifier.Mode = "list"
	elseif InvasionNotifier.Mode == "detail" and InvasionNotifier.Rows[InvasionNotifier.Selected] == nil then
		InvasionNotifier.Mode = "list"
	end
end

function InvasionNotifier.Protocol(packet, packetName)
	if CONFIG.Enable == 0 or packetName ~= CONFIG.PacketName then
		return false
	end

	local action = tonumber(GetBytePacket(packetName, -1)) or 0

	if action == 0 then
		InvasionNotifier.Clear()
		ClearPacket(packetName)
		return true
	end

	if action == 1 then
		InvasionNotifier.ReadRows(packetName)
	end

	ClearPacket(packetName)
	return true
end

function InvasionNotifier.Init()
	ProtocolFunctions.ClientProtocol(InvasionNotifier.Protocol)
end

function InvasionNotifier.DrawBadge()
	local colors = CONFIG.Colors
	local x, y, w, h = getCompactLayout()
	local hovered = isMouseOver(x, y, w, h)
	local border = hovered and colors.BadgeBorderHover or colors.BadgeBorder

	drawSteppedRect(x + 2, y + 2, w, h, colors.Shadow)
	drawSteppedRect(x, y, w, h, border)
	drawSteppedRect(x + 1, y + 1, w - 2, h - 2, colors.BadgeBack)
	drawRect(x + 6, y + 3, w - 12, 1, colors.BadgeShine)

	SetFontType(1)
	SetTextBg(0, 0, 0, 0)
	SetTextColor(210, 214, 222, 255)
	RenderText(x, y + 6, "Invasion Activa", w, ALIGN_CENTER)
end

function InvasionNotifier.DrawButton(id, text, x, y, w, h)
	local hovered = isMouseOver(x, y, w, h)

	InvasionNotifier.Buttons[id] = { x = x, y = y, w = w, h = h }

	drawRect(x, y, w, h, hovered and THEME.Colors.ButtonHover or THEME.Colors.Button)
	SetTextColor(222, 224, 230, 255)
	RenderText(x, y + 4, text, w, ALIGN_CENTER)
end

function InvasionNotifier.DrawFrame(title)
	local x, y, width, height = getPanelLayout()
	local closeX = x + width - 17
	local closeY = y + 5

	InvasionNotifier.Buttons = {}
	InvasionNotifier.Buttons.header = { x = x, y = y, w = width, h = 24 }

	THEME.DrawFrame(x, y, width, height, 24)

	SetFontType(1)
	SetTextBg(0, 0, 0, 0)
	THEME.SetTitleColor()
	RenderText(x, y + 7, title, width, ALIGN_CENTER)
	InvasionNotifier.DrawButton("close", "x", closeX, closeY, 12, 12)

	return x, y, width, height
end

function InvasionNotifier.DrawList()
	local panel = CONFIG.Panel or {}
	local rowHeight = tonumber(panel.RowHeight) or 22
	local x, y, width = InvasionNotifier.DrawFrame("INVASION ACTIVA")
	local startY = y + 31

	SetFontType(0)

	for i, row in ipairs(InvasionNotifier.Rows) do
		local rowY = startY + ((i - 1) * rowHeight)
		local hovered = isMouseOver(x + 7, rowY, width - 14, rowHeight - 2)
		local rowColor = hovered and THEME.Colors.RowHover or THEME.Colors.Row

		InvasionNotifier.Buttons["row" .. i] = { x = x + 7, y = rowY, w = width - 14, h = rowHeight - 2, row = i }
		drawRect(x + 7, rowY, width - 14, rowHeight - 2, rowColor)
		SetTextColor(214, 216, 222, 255)
		RenderText(x + 12, rowY + 4, shortText(row.bossName, 22), 118, ALIGN_LEFT)
		SetTextColor(150, 190, 214, 255)
		RenderText(x + 132, rowY + 4, shortText(row.mapName, 13), 66, ALIGN_LEFT)
		SetTextColor(198, 206, 214, 255)
		RenderText(x + width - 72, rowY + 4, formatTime(row.remaining), 58, ALIGN_RIGHT)
	end
end

function InvasionNotifier.GetBossModel(bossClass)
	bossClass = tonumber(bossClass) or 0

	if bossClass <= 0 or LoadMonster == nil then
		return nil
	end

	-- Recargar en cada frame: abrir el mapa (tecla M) u otros eventos del cliente
	-- descargan modelos y un handle cacheado quedaria invalido (imagen en blanco).
	-- LoadMonster devuelve el indice y recarga si hace falta, asi que es seguro.
	local ok, model = pcall(LoadMonster, bossClass)

	if ok and model ~= nil and model ~= 0 then
		return model
	end

	return nil
end

function InvasionNotifier.DrawBossPreview(row, x, y)
	local preview = CONFIG.Preview or {}

	if preview.Enable == 0 or row == nil then
		return
	end

	local colors = CONFIG.Colors
	local width = tonumber(preview.Width) or 70
	local height = tonumber(preview.Height) or 84
	local bossClass = tonumber(row.bossClass) or 0
	local classScale = nil

	if preview.ScaleByClass ~= nil then
		classScale = tonumber(preview.ScaleByClass[bossClass])
	end

	local size = classScale or tonumber(preview.Size) or 0.42
	local renderX = x + (width / 2)
	local renderY = y + height - 14
	local model = InvasionNotifier.GetBossModel(row.bossClass)

	drawRect(x, y, width, height, colors.PreviewBack or THEME.Colors.Row)
	drawRect(x, y, width, 1, THEME.Colors.GoldDark)
	drawRect(x, y + height - 1, width, 1, THEME.Colors.GoldDark)

	-- Con el mapa (M) abierto el cliente libera los modelos; no renderizamos
	-- el modelo esos frames para no perderlo (el recuadro queda dibujado).
	if mapIsOpen() then
		return
	end

	if model == nil or model == false then
		SetFontType(0)
		SetTextColor(150, 190, 214, 210)
		RenderText(x, y + 35, "BOSS", width, ALIGN_CENTER)
		return
	end

	if tonumber(preview.UseRotation) == 1 and RenderMonsterRotation ~= nil then
		pcall(RenderMonsterRotation, model, renderX, renderY, size)
	elseif RenderMonster ~= nil then
		pcall(RenderMonster, model, renderX, renderY, size)
	elseif RenderMonsterRotation ~= nil then
		pcall(RenderMonsterRotation, model, renderX, renderY, size)
	end
end

function InvasionNotifier.DrawDetail()
	local x, y, width, height = InvasionNotifier.DrawFrame("DETALLE INVASION")
	local row = InvasionNotifier.Rows[InvasionNotifier.Selected]

	if row == nil then
		InvasionNotifier.Mode = "list"
		return
	end

	local preview = CONFIG.Preview or {}
	local previewWidth = tonumber(preview.Width) or 74
	local tableX = x + 8
	local tableWidth = width - previewWidth - 27
	local lineY = y + 28

	SetFontType(0)
	SetTextBg(0, 0, 0, 0)

	-- Nombre del boss (una sola vez, sin fondo)
	SetTextColor(222, 236, 248, 255)
	RenderText(tableX + 3, lineY, shortText(row.bossName, 22), tableWidth, ALIGN_LEFT)
	lineY = lineY + 16

	-- Nombre de la invasion solo si difiere del boss (evita el duplicado)
	if detailNeedsBossLine(row) then
		SetTextColor(150, 168, 192, 255)
		RenderText(tableX + 3, lineY, shortText(row.invasionName, 24), tableWidth, ALIGN_LEFT)
		lineY = lineY + 15
	end

	-- Datos en tabla de 2 columnas (etiqueta | valor). Filas en zebra por tono,
	-- sin bordes. La Vida pasa a rojo cuando baja del 25%.
	local percent = clamp(row.percent, 0, 100)
	local rowsData = {
		{ "Mapa", string.format("%s (%d, %d)", row.mapName, row.x, row.y) },
		{ "Vida", string.format("%d%%", percent) },
		{ "Atacantes", string.format("%d", tonumber(row.attackers) or 0) },
		{ "Premio", string.format("%d WCP / %d GP", row.wcp, row.gp) },
		{ "Restante", formatTime(row.remaining) },
	}

	local rh = 15

	for i = 1, #rowsData do
		local ry = lineY + ((i - 1) * rh)
		local zebra = (i % 2 == 0) and THEME.Colors.RowHover or THEME.Colors.Row

		drawRect(tableX, ry, tableWidth, rh, zebra)

		SetTextColor(150, 168, 192, 255)
		RenderText(tableX + 5, ry + 2, rowsData[i][1], 70, ALIGN_LEFT)

		if rowsData[i][1] == "Vida" then
			if percent < 25 then
				SetTextColor(232, 96, 98, 255)
			else
				SetTextColor(120, 210, 240, 255)
			end
		else
			SetTextColor(200, 212, 228, 255)
		end

		RenderText(tableX, ry + 2, rowsData[i][2], tableWidth - 6, ALIGN_RIGHT)
	end

	-- El modelo 3D se dibuja al final: RenderMonster altera el estado del texto y
	-- ensuciaba el fondo del primer texto siguiente (el nombre del boss).
	InvasionNotifier.DrawBossPreview(row, x + width - previewWidth - 9, y + 28)
end

function InvasionNotifier_UpdateMouse()
	if CONFIG.Enable == 0 or not InvasionNotifier.Visible then
		return
	end

	local mouseX = MousePosX()
	local mouseY = MousePosY()
	local released = CheckReleasedKey(Keys.LButton) == 1
	local pressed = CheckPressedKey(Keys.LButton) == 1

	if InvasionNotifier.Minimized then
		if usingMasterHub() then
			return
		end

		local x, y, w, h = getCompactLayout()

		if InvasionNotifier.Dragging == "compact" then
			local screenHeight = tonumber(CONFIG.ScreenHeight) or 480
			local nextX = clamp(mouseX - InvasionNotifier.DragOffsetX, 0, math.max(0, GetWideX() - w))
			local nextY = clamp(mouseY - InvasionNotifier.DragOffsetY, 0, math.max(0, screenHeight - h))

			if math.abs(nextX - InvasionNotifier.CompactX) >= 2 or math.abs(nextY - InvasionNotifier.CompactY) >= 2 then
				InvasionNotifier.DragMoved = true
			end

			InvasionNotifier.CompactX = nextX
			InvasionNotifier.CompactY = nextY

			if released then
				if not InvasionNotifier.DragMoved then
					InvasionNotifier.Minimized = false
				end

				InvasionNotifier.Dragging = false
				InvasionNotifier.DragMoved = false
				resetMouseLeft()
			end

			return
		end

		if isMouseOver(x, y, w, h) then
			blockGameClick()

			if pressed then
				InvasionNotifier.Dragging = "compact"
				InvasionNotifier.DragOffsetX = mouseX - x
				InvasionNotifier.DragOffsetY = mouseY - y
				InvasionNotifier.DragMoved = false
				resetMouseLeft()
			end
		end

		return
	end

	local panelX, panelY, panelW, panelH = getPanelLayout()

	if isMouseOver(panelX, panelY, panelW, panelH) then
		blockGameClick()
	end

	if InvasionNotifier.Dragging == "panel" then
		local _, _, width, height = getPanelLayout()
		local screenHeight = tonumber(CONFIG.ScreenHeight) or 480

		InvasionNotifier.PanelX = clamp(mouseX - InvasionNotifier.DragOffsetX, 0, math.max(0, GetWideX() - width))
		InvasionNotifier.PanelY = clamp(mouseY - InvasionNotifier.DragOffsetY, 0, math.max(0, screenHeight - height))

		if released then
			InvasionNotifier.Dragging = false
			resetMouseLeft()
		end

		return
	end

	if pressed and isMouseOver(panelX, panelY, panelW, 24) and not isMouseOver(panelX + panelW - 17, panelY + 5, 12, 12) then
		InvasionNotifier.Dragging = "panel"
		InvasionNotifier.DragOffsetX = mouseX - panelX
		InvasionNotifier.DragOffsetY = mouseY - panelY
		resetMouseLeft()
		return
	end

	if not released then
		return
	end

	for id, button in pairs(InvasionNotifier.Buttons) do
		if id ~= "header" and isMouseOver(button.x, button.y, button.w, button.h) then
			if id == "close" then
				-- La (x) actua como "volver": en el detalle regresa a la lista
				-- (si hay varias invasiones); si no, minimiza al hub.
				if InvasionNotifier.Mode == "detail" and #InvasionNotifier.Rows > 1 then
					InvasionNotifier.Mode = "list"
				else
					InvasionNotifier.Minimized = true
				end
			elseif button.row ~= nil then
				InvasionNotifier.Selected = button.row
				InvasionNotifier.Mode = "detail"
			end

			resetMouseLeft()
			return
		end
	end
end

function InvasionNotifier_Render()
	if CONFIG.Enable == 0 or not InvasionNotifier.Visible then
		return
	end

	InvasionNotifier.Tick = InvasionNotifier.Tick + 1

	if InvasionNotifier.Tick > (tonumber(CONFIG.HideTicks) or 900) then
		InvasionNotifier.Clear()
		return
	end

	if InvasionNotifier.Minimized then
		if not usingMasterHub() then
			InvasionNotifier.DrawBadge()
		end
	elseif InvasionNotifier.Mode == "detail" then
		InvasionNotifier.DrawDetail()
	else
		InvasionNotifier.DrawList()
	end
end

function InvasionNotifier_Preload()
	if LoadMonster == nil then
		return
	end

	-- Precargar los modelos de los bosses de invasion conocidos al iniciar el
	-- cliente para que queden residentes (mitiga la perdida al abrir el mapa).
	local preview = CONFIG.Preview or {}

	for bossClass in pairs(preview.ScaleByClass or {}) do
		pcall(LoadMonster, bossClass)
	end
end

InvasionNotifier.Init()

-- ### MASTERHUB REGISTRO ###
MasterHubQueue = MasterHubQueue or {}
table.insert(MasterHubQueue, {
	Id = "invasiones",
	Label = "Invasiones",
	Order = 10,
	IsVisible = function()
		return CONFIG.Enable == 1
	end,
	GetCount = function()
		if InvasionNotifier.Visible then
			return #InvasionNotifier.Rows
		end

		return 0
	end,
	OnClick = function()
		if InvasionNotifier.Visible and #InvasionNotifier.Rows > 0 then
			InvasionNotifier.Minimized = false

			-- Con una sola invasion activa se abre directo el detalle;
			-- con 2 o mas se muestra la lista para elegir.
			if #InvasionNotifier.Rows == 1 then
				InvasionNotifier.Selected = 1
				InvasionNotifier.Mode = "detail"
			else
				InvasionNotifier.Mode = "list"
			end

			InvasionNotifier.Tick = 0
			return nil
		end

		return "No hay invasiones activas"
	end,
})

return InvasionNotifier