--[[
   Copyright (c) The OpenRA Developers and Contributors
   This file is part of OpenRA, which is free software. It is made
   available to you under the terms of the GNU General Public License
   as published by the Free Software Foundation, either version 3 of
   the License, or (at your option) any later version. For more
   information, see COPYING.
]]
AlliedReinforcementsA = { "e1", "e1", "e1", "e1", "e1" }
AlliedReinforcementsB = { "e3", "e3", "e3", "e3", "e3" }
BadGuys = { BadGuy1, BadGuy2, BadGuy3 }

SovietDogPatrols =
{
	{ Patrol_1_e1, Patrol_1_dog },
	{ Patrol_2_e1, Patrol_2_dog },
	{ Patrol_3_e1, Patrol_3_dog },
	{ Patrol_4_e1, Patrol_4_dog }
}

SovietDogPatrolPaths =
{
	{ Patrol6.Location, Patrol7.Location, Patrol8.Location, Patrol1.Location, Patrol2.Location, Patrol3.Location, Patrol4.Location, Patrol5.Location },
	{ Patrol8.Location, Patrol1.Location, Patrol2.Location, Patrol3.Location, Patrol4.Location, Patrol5.Location, Patrol6.Location, Patrol7.Location },
	{ Patrol1.Location, Patrol2.Location, Patrol3.Location, Patrol4.Location, Patrol5.Location, Patrol6.Location, Patrol7.Location, Patrol8.Location },
	{ Patrol2.Location, Patrol3.Location, Patrol4.Location, Patrol5.Location, Patrol6.Location, Patrol7.Location, Patrol8.Location, Patrol1.Location }
}

Mammoths = { Mammoth1, Mammoth2, Mammoth3 }

SovietMammothPaths =
{
	{ TnkPatrol1.Location, TnkPatrol2.Location,TnkPatrol3.Location, TnkPatrol4.Location, TnkPatrol5.Location, TnkPatrol6.Location, TnkPatrol7.Location, TnkPatrol8.Location },
	{ TnkPatrol5.Location, TnkPatrol6.Location, TnkPatrol7.Location, TnkPatrol8.Location,  TnkPatrol1.Location, TnkPatrol2.Location, TnkPatrol3.Location, TnkPatrol4.Location },
	{ TnkPatrol8.Location, TnkPatrol1.Location, TnkPatrol2.Location, TnkPatrol3.Location, TnkPatrol4.Location, TnkPatrol5.Location,  TnkPatrol6.Location, TnkPatrol7.Location }
}

SovietSubPath = { SubPatrol3_1.Location, SubPatrol3_2.Location, SubPatrol3_3.Location }

ParadropWaypoints =
{
	easy = { UnitBStopLocation },
	normal = { UnitBStopLocation, UnitAStopLocation },
	hard = { UnitBStopLocation, MCVStopLocation, UnitAStopLocation }
}

SovietTechLabs = { TechLab1, TechLab2, TechLab3 }

GroupPatrol = function(units, waypoints, delay)
	local i = 1
	local stop = false

	Utils.Do(units, function(unit)
		Trigger.OnIdle(unit, function()
			if stop then
				return
			end
			if unit.Location == waypoints[i] then
				local bool = Utils.All(units, function(actor) return actor.IsIdle end)
				if bool then
					stop = true
					i = i + 1
					if i > #waypoints then
						i = 1
					end
					Trigger.AfterDelay(delay, function() stop = false end)
				end
			else
				unit.AttackMove(waypoints[i])
			end
		end)
	end)
end

InitialSovietPatrols = function()
	-- Dog Patrols
	for i = 1, 4 do
		GroupPatrol(SovietDogPatrols[i], SovietDogPatrolPaths[i], DateTime.Seconds(5))
	end

	-- Mammoth Patrols
	for i = 1, 3 do
		Trigger.AfterDelay(DateTime.Seconds(6 * (i - 1)), function()
			Trigger.OnIdle(Mammoths[i], function()
				Mammoths[i].Patrol(SovietMammothPaths[i])
			end)
		end)
	end

	-- Sub Patrols
	Patrol1Sub.Patrol({ SubPatrol1_1.Location, SubPatrol1_2.Location })
	Patrol2Sub.Patrol({ SubPatrol2_1.Location, SubPatrol2_2.Location })
	Patrol3Sub1.Patrol(SovietSubPath)
	Patrol3Sub2.Patrol(SovietSubPath)
end

InitialAlliedReinforcements = function()
	local camera = Actor.Create("Camera", true, { Owner = Greece, Location = DefaultCameraPosition.Location })
	Trigger.AfterDelay(DateTime.Seconds(30), camera.Destroy)

	Reinforcements.Reinforce(Greece, AlliedReinforcementsA, { AlliedEntry1.Location, UnitBStopLocation.Location }, 2)
	Trigger.AfterDelay(DateTime.Seconds(2), function()
		Reinforcements.Reinforce(Greece, AlliedReinforcementsB, { AlliedEntry2.Location, UnitAStopLocation.Location }, 2)
	end)
	Trigger.AfterDelay(DateTime.Seconds(5), function()
		Reinforcements.Reinforce(Greece, { "mcv" }, { AlliedEntry3.Location, MCVStopLocation.Location })
	end)
end

CaptureRadarDome = function()
	Trigger.OnKilled(RadarDome, function()
		Greece.MarkFailedObjective(CaptureRadarDomeObj)
	end)

	Trigger.OnCapture(RadarDome, function()
		Greece.MarkCompletedObjective(CaptureRadarDomeObj)

		Utils.Do(SovietTechLabs, function(a)
			if a.IsDead then
				return
			end

			Beacon.New(Greece, a.CenterPosition)
			if Difficulty ~= "hard" then
				Actor.Create("TECH.CAM", true, { Owner = Greece, Location = a.Location + CVec.New(1, 1) })
			end
		end)

		Media.DisplayMessage(UserInterface.Translate("soviet-tech-centers-discovered"))

		if Difficulty == "easy" then
			Actor.Create("Camera", true, { Owner = Greece, Location = Weapcam.Location })
		end
	end)
end

InfiltrateTechCenter = function()
	Utils.Do(SovietTechLabs, function(a)
		Trigger.OnInfiltrated(a, function()
			if Infiltrated then
				return
			end
			Infiltrated = true
			DestroySovietsObj = AddPrimaryObjective(Greece, "destroy-soviet-buildings-units")
			Greece.MarkCompletedObjective(InfiltrateTechCenterObj)

			local Proxy = Actor.Create("powerproxy.paratroopers", false, { Owner = USSR })
			Utils.Do(ParadropWaypoints[Difficulty], function(waypoint)
				Proxy.TargetParatroopers(waypoint.CenterPosition, Angle.South)
			end)
			Proxy.Destroy()
		end)

		Trigger.OnCapture(a, function()
			if not Infiltrated then
				Media.DisplayMessage(UserInterface.Translate("dont-capture-tech-centers"))
			end
		end)
	end)

	Trigger.OnAllKilledOrCaptured(SovietTechLabs, function()
		if not Greece.IsObjectiveCompleted(InfiltrateTechCenterObj) then
			Greece.MarkFailedObjective(InfiltrateTechCenterObj)
		end
	end)
end

Tick = function()
	if DateTime.GameTime > DateTime.Seconds(10) and Greece.HasNoRequiredUnits() then
		Greece.MarkFailedObjective(InfiltrateTechCenterObj)
	end

	if DestroySovietsObj and USSR.HasNoRequiredUnits() then
		Greece.MarkCompletedObjective(DestroySovietsObj)
	end
end

WorldLoaded = function()
	Greece = Player.GetPlayer("Greece")
	USSR = Player.GetPlayer("USSR")

	InitObjectives(Greece)

	InfiltrateTechCenterObj = AddPrimaryObjective(Greece, "infiltrate-tech-center-spy")
	CaptureRadarDomeObj = AddSecondaryObjective(Greece, "capture-radar-shore")

	Camera.Position = DefaultCameraPosition.CenterPosition

	Utils.Do(BadGuys, function(a)
		a.AttackMove(MCVStopLocation.Location)
	end)

	Trigger.AfterDelay(DateTime.Seconds(1), function()
		InitialAlliedReinforcements()
		InitialSovietPatrols()
	end)

	Trigger.OnEnteredProximityTrigger(SovietMiniBaseCam.CenterPosition, WDist.New(1024 * 6), function(a, id)
		if a.Owner == Greece then
			Trigger.RemoveProximityTrigger(id)
			local cam = Actor.Create("Camera", true, { Owner = Greece, Location = SovietMiniBaseCam.Location })
			Trigger.AfterDelay(DateTime.Seconds(15), cam.Destroy)
		end
	end)

	CaptureRadarDome()
	InfiltrateTechCenter()
	Trigger.AfterDelay(0, ActivateAI)
end