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--
-- All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
-- its licensors.
--
-- For complete copyright and license terms please see the LICENSE at the root of this
-- distribution (the "License"). All use of this software is governed by the License,
-- or, if provided, by the license below or the license accompanying this file. Do not
-- remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
--
--
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local SequenceStates = 
{
	Properties = 
	{
		SequenceName = {default = ""},
		StateText = {default = EntityId()},
		StartButton = {default = EntityId()},
		PauseButton = {default = EntityId()},
		ResumeButton = {default = EntityId()},
		StopButton = {default = EntityId()},
		AbortButton = {default = EntityId()},
		ResetButton = {default = EntityId()},
	},
}

function SequenceStates:OnActivate()
	self.tickBusHandler = TickBus.Connect(self);	
end

function SequenceStates:OnTick(deltaTime, timePoint)
	self.tickBusHandler:Disconnect()

	self.canvas = UiElementBus.Event.GetCanvas(self.entityId)
	self.canvasNotificationBusHandler = UiCanvasNotificationBus.Connect(self, self.canvas)
	
	self.animHandler = UiAnimationNotificationBus.Connect(self, self.canvas)
	
	-- Initialize button states
	UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StartButton, true)
	UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.PauseButton, false)
	UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResumeButton, false)
	UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StopButton, false)
	UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.AbortButton, false)
	UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResetButton, false)											
end


function SequenceStates:OnDeactivate()
	self.canvasNotificationBusHandler:Disconnect()
	self.animHandler:Disconnect()
end

function SequenceStates:OnAction(entityId, actionName)
	if actionName == "StartPressed" then
		-- Update button states
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StartButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.PauseButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResumeButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StopButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.AbortButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResetButton, false)		
	
		-- Start sequence
		UiAnimationBus.Event.StartSequence(self.canvas, self.Properties.SequenceName)
	elseif actionName == "PausePressed" then
		-- Update button states
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StartButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.PauseButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResumeButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StopButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.AbortButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResetButton, false)	
	
		-- Pause sequence
		UiAnimationBus.Event.PauseSequence(self.canvas, self.Properties.SequenceName)
	elseif actionName == "ResumePressed" then
		-- Update button states
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StartButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.PauseButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResumeButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StopButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.AbortButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResetButton, false)	
	
		-- Resume sequence
		UiAnimationBus.Event.ResumeSequence(self.canvas, self.Properties.SequenceName)	
	elseif actionName == "StopPressed" then	
		-- Stop sequence. Button states are updated in the animation handler	
		UiAnimationBus.Event.StopSequence(self.canvas, self.Properties.SequenceName)
	elseif actionName == "AbortPressed" then
		-- Abort sequence. Buttons states are updated in the animation handler
		UiAnimationBus.Event.AbortSequence(self.canvas, self.Properties.SequenceName)
	elseif actionName == "ResetPressed" then
		-- Update button states
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StartButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.PauseButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResumeButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StopButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.AbortButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResetButton, false)	

		-- Reset sequence
		UiAnimationBus.Event.ResetSequence(self.canvas, self.Properties.SequenceName)
	end
end

function SequenceStates:OnUiAnimationEvent(eventType, sequenceName)
	if (eventType == eUiAnimationEvent_Started) then
		-- Update state text
		UiTextBus.Event.SetText(self.Properties.StateText, "Sequence Started")
	elseif (eventType == eUiAnimationEvent_Stopped) then
		-- Update button states
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StartButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.PauseButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResumeButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StopButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.AbortButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResetButton, true)	
	
		-- Update state text
		UiTextBus.Event.SetText(self.Properties.StateText, "Sequence Stopped")
	elseif (eventType == eUiAnimationEvent_Aborted) then
		-- Update button states
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StartButton, true)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.PauseButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResumeButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.StopButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.AbortButton, false)
		UiInteractableBus.Event.SetIsHandlingEvents(self.Properties.ResetButton, true)		
		
		-- Update state text
		UiTextBus.Event.SetText(self.Properties.StateText, "Sequence Aborted")
	elseif (eventType == eUiAnimationEvent_Updated) then
		-- Update state text
		UiTextBus.Event.SetText(self.Properties.StateText, "Sequence Playing")
	end
end

return SequenceStates