-- Neuron is a World of Warcraft® user interface addon.
-- Copyright (c) 2017-2021 Britt W. Yazel
-- Copyright (c) 2006-2014 Connor H. Chenoweth
-- This code is licensed under the MIT license (see LICENSE for details)

---@class PETBTN : BUTTON @define class PETBTN inherits from class BUTTON
local PETBTN = setmetatable({}, { __index = Neuron.BUTTON })
Neuron.PETBTN = PETBTN

local L = LibStub("AceLocale-3.0"):GetLocale("Neuron")

LibStub("AceEvent-3.0"):Embed(PETBTN)
LibStub("AceTimer-3.0"):Embed(PETBTN)


---Constructor: Create a new Neuron BUTTON object (this is the base object for all Neuron button types)
---@param bar BAR @Bar Object this button will be a child of
---@param buttonID number @Button ID that this button will be assigned
---@param defaults table @Default options table to be loaded onto the given button
---@return PETBTN @ A newly created PETBTN object
function PETBTN.new(bar, buttonID, defaults)
	--call the parent object constructor with the provided information specific to this button type
	local newButton = Neuron.BUTTON.new(bar, buttonID, PETBTN, "PetBar", "PetButton", "NeuronActionButtonTemplate")

	if defaults then
		newButton:SetDefaults(defaults)
	end

	return newButton
end


function PETBTN:SetType()
	self:RegisterEvent("PLAYER_ENTERING_WORLD")
	self:RegisterEvent("UNIT_PET")
	self:RegisterEvent("PET_BAR_UPDATE", "UpdateData")
	self:RegisterEvent("PET_BAR_UPDATE_COOLDOWN", "UpdateCooldown")
	self:RegisterEvent("PET_DISMISS_START", "PLAYER_ENTERING_WORLD")
	self:RegisterEvent("PLAYER_CONTROL_LOST", "UpdateData")
	self:RegisterEvent("PLAYER_CONTROL_GAINED", "UpdateData")
	self:RegisterEvent("PLAYER_FARSIGHT_FOCUS_CHANGED", "UpdateData")

	if not Neuron.isWoWClassicEra and not Neuron.isWoWClassic then
		self:RegisterEvent("PET_SPECIALIZATION_CHANGED", "PLAYER_ENTERING_WORLD")
	end

	self.actionID = self.id

	self:SetAttribute("type1", "pet")
	self:SetAttribute("type2", "macro")
	self:SetAttribute("*action1", self.actionID)

	self:SetScript("PostClick", function(self) self:UpdateData() self:UpdateStatus() end)
	self:SetScript("OnDragStart", function(self) self:OnDragStart() end)
	self:SetScript("OnReceiveDrag", function(self) self:OnReceiveDrag() end)
	self:SetScript("OnEnter", function(self,...) self:UpdateTooltip() end)
	self:SetScript("OnLeave", function() GameTooltip:Hide() end)

	self:SetScript("OnAttributeChanged", nil)

	self:SetSkinned()
end

function PETBTN:UpdateIcon()
	local _, texture, isToken = GetPetActionInfo(self.actionID)

	self.Name:SetText("")
	self.Count:SetText("")

	if texture then
		if isToken then
			self.Icon:SetTexture(_G[texture])
		else
			self.Icon:SetTexture(texture)
		end

		self.Icon:Show()
	else
		self.Icon:SetTexture("")
		self.Icon:Hide()
	end
end

function PETBTN:UpdateStatus()
	local _, _, _, isActive, allowed, enabled = GetPetActionInfo(self.actionID)

	if isActive then
		if IsPetAttackAction(self.actionID) then
			self:GetCheckedTexture():SetAlpha(0.5)
		else
			self:GetCheckedTexture():SetAlpha(1.0)
		end

		self:SetChecked(true)
	else
		self:GetCheckedTexture():SetAlpha(1.0)
		self:SetChecked(false)
	end

	if allowed then
		self.AutoCastable:Show()
	else
		self.AutoCastable:Hide()
	end

	if enabled then
		self.Shine:Show()
		AutoCastShine_AutoCastStart(self.Shine)
		self.AutoCastable:Hide()
	else
		self.Shine:Hide()
		AutoCastShine_AutoCastStop(self.Shine)

		if allowed then
			self.AutoCastable:Show()
		end
	end

	self:UpdateUsable()
end


function PETBTN:UpdateCooldown()
	if self.actionID and GetPetActionInfo(self.actionID) then
		local start, duration, enable, modrate = GetPetActionCooldown(self.actionID)
		self:SetCooldownTimer(start, duration, enable, self.cdText, modrate, self.cdcolor1, self.cdcolor2, self.cdAlpha)
	end
end

function PETBTN:UpdateNormalTexture()
	if not self:GetSkinned() then
		if GetPetActionInfo(self.actionID) then
			self:SetNormalTexture(self.hasAction or "")
			self:GetNormalTexture():SetVertexColor(1,1,1,1)
		else
			self:SetNormalTexture(self.noAction or "")
			self:GetNormalTexture():SetVertexColor(1,1,1,0.5)
		end
	end
end

function PETBTN:UpdateData()
	local spell = GetPetActionInfo(self.actionID)

	self.spell = spell

	self:UpdateNormalTexture()
	self:UpdateIcon()
	self:UpdateCooldown()


	if not InCombatLockdown() then
		if spell then
			self:SetAttribute("*macrotext2", "/petautocasttoggle "..spell)
		end
	end

	self:UpdateStatus()
end

function PETBTN:UpdateUsable()
	if self.editmode then
		self.Icon:SetVertexColor(0.2, 0.2, 0.2)
	elseif self.actionID and GetPetActionSlotUsable(self.actionID) then
		self.Icon:SetVertexColor(1.0, 1.0, 1.0)
	else
		self.Icon:SetVertexColor(0.4, 0.4, 0.4)
	end
end

function PETBTN:PLAYER_ENTERING_WORLD()
	self:UpdateData()
	self:UpdateUsable()
	self:UpdateIcon()
	self:UpdateStatus()
	self:UpdateNormalTexture()

	self:UpdateObjectVisibility(true) --have to set true at login or the buttons on the bar don't show

	self.Binder:ApplyBindings()

	--This part is so that the grid get's set properly on login
	self:ScheduleTimer(function() self:UpdateObjectVisibility() end, 2)
end

function PETBTN:UNIT_PET(event, unit)
	if unit ==  "player" then
		self:UpdateData()
	end
end

function PETBTN:OnDragStart()
	if InCombatLockdown() then
		return
	end

	if not self.barLock then
		self.drag = true
	elseif self.barLockAlt and IsAltKeyDown() then
		self.drag = true
	elseif self.barLockCtrl and IsControlKeyDown() then
		self.drag = true
	elseif self.barLockShift and IsShiftKeyDown() then
		self.drag = true
	end

	if self.drag then
		self:SetChecked(false)

		PickupPetAction(self.actionID)

		self:UpdateData()
	end

	for i,bar in pairs(Neuron.BARIndex) do
		if bar.class == "pet" then
			bar:UpdateBarObjectVisibility(true)
		end
	end
end


function PETBTN:OnReceiveDrag()
	if InCombatLockdown() then
		return
	end

	local cursorType = GetCursorInfo()

	if cursorType == "petaction" then
		self:SetChecked(false)
		PickupPetAction(self.actionID)
		self:UpdateData()
	end
end


function PETBTN:UpdateTooltip()
	if self.bar then
		if self.tooltipsCombat and InCombatLockdown() then
			return
		end

		if self.tooltips then
			if self.tooltipsEnhanced then
				self.UberTooltips = true

				GameTooltip:SetOwner(self, "ANCHOR_RIGHT")
			else
				self.UberTooltips = false
				GameTooltip:SetOwner(self, "ANCHOR_RIGHT")
			end

			if GetPetActionInfo(self.actionID) then
				if self.UberTooltips then
					GameTooltip:SetPetAction(self.actionID)
				else
					GameTooltip:SetText(self.spell)
				end
			end

			GameTooltip:Show()
		end
	end
end


function PETBTN:UpdateObjectVisibility(show)
	if show or self.showGrid or GetPetActionInfo(self.actionID) then
		self.isShown = true
	else
		self.isShown = false
	end

	Neuron.BUTTON.UpdateObjectVisibility(self) --call parent function
end