--[[
   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.
]]
if Difficulty == "easy" then
	remainingTime = DateTime.Minutes(7)
elseif Difficulty == "normal" then
	remainingTime = DateTime.Minutes(6)
elseif Difficulty == "hard" then
	remainingTime = DateTime.Minutes(5)
end

Dogs = { Dog1, Dog2, Dog3, Dog4, Dog5, Dog6, Dog7, Dog8, Dog9, Dog10, Dog11, Dog12, Dog13, Dog14, Dog15, Dog16, Dog17, Dog18, Dog19 }
Engineers = { Prisoner1, Prisoner2, Prisoner3, Prisoner4, Prisoner5 }
PrisonerGuards = { PrisonerGuard1, PrisonerGuard2, PrisonerGuard3 }
EntranceGuards = { EntranceGuard1, EntranceGuard2, EntranceGuard3, EntranceGuard4, EntranceGuard5, EntranceGuard6, EntranceGuard7, EntranceGuard8 }
GoalGuards = { GoalGuard1, GoalGuard2, GoalGuard3, GoalGuard4 }
CCGuards = { CCGuard1, CCGuard2, CCGuard3, CCGuard4 }
StartingUnitsReinforcements = { "e1", "e1", "e1", "e1" }

CameraCCTrigger = { CPos.New(83, 71), CPos.New(84,71) }
CameraGoalCenterTrigger = { CPos.New(74, 66), CPos.New(75, 66), CPos.New(76, 66), CPos.New(77, 66) }
CameraGoalLeftTrigger = { CPos.New(62, 59), CPos.New(62, 60), CPos.New(62, 62), CPos.New(62, 63) }
CameraGoalRightTrigger = { CPos.New(90, 59), CPos.New(90, 60), CPos.New(90, 62), CPos.New(90, 63) }
ControlCenterTrigger = { CPos.New(87, 67), CPos.New(88, 67) }
ControlCenterEngineerTrigger = { CPos.New(87, 67), CPos.New(88, 67) }
FTurBottomTrigger = { CPos.New(67, 82), CPos.New(67, 83) }
FTurLeftTrigger = { CPos.New(57, 70), CPos.New(58, 70), CPos.New(59, 70), CPos.New(60, 70) }
FTurRightTrigger = { CPos.New(97, 68), CPos.New(97, 69), CPos.New(97, 70) }
GoalCenterTrigger = { CPos.New(73, 52), CPos.New(74, 52), CPos.New(75, 52), CPos.New(76, 52), CPos.New(77, 52), CPos.New(78, 52) }
GoalLeft1Trigger = { CPos.New(65, 58), CPos.New(66, 58), CPos.New(67, 58), CPos.New(65, 59), CPos.New(66, 59), CPos.New(67, 59) }
GoalLeft2Trigger = { CPos.New(65, 64), CPos.New(66, 64), CPos.New(67, 64), CPos.New(65, 65), CPos.New(66, 65), CPos.New(67, 65) }
GoalRight1Trigger = { CPos.New(86, 57), CPos.New(87, 57), CPos.New(88, 57), CPos.New(86, 58), CPos.New(87, 58), CPos.New(88, 58) }
GoalRight2Trigger = { CPos.New(86, 64), CPos.New(87, 64), CPos.New(88, 64), CPos.New(86, 65), CPos.New(87, 65), CPos.New(88, 65) }
RSoldierTrapTrigger = { CPos.New(72, 72), CPos.New(72,73), CPos.New(72,74) }
SoldierTrap2Trigger = { CPos.New(51, 73), CPos.New(51, 74) }

Trigger.OnEnteredFootprint(CameraCCTrigger, function(a, id)
	if not cameraCCTrigger and a.Owner == player then
		cameraCCTrigger = true
		Actor.Create("camera", true, { Owner = player, Location = CameraCC.Location })
	end
end)

Trigger.OnEnteredFootprint(CameraGoalCenterTrigger, function(a, id)
	if not cameraGoalCenterTrigger and a.Owner == player then
		cameraGoalCenterTrigger = true
		if not controlCenterEngineerTrigger then
			Actor.Create("camera", true, { Owner = player, Location = CameraGoalCenter1.Location })
			Actor.Create("camera", true, { Owner = player, Location = CameraGoalCenter2.Location })
			Actor.Create("camera", true, { Owner = player, Location = CameraGoalCenter3.Location })
		end
	end
end)

Trigger.OnEnteredFootprint(CameraGoalLeftTrigger, function(a, id)
	if not cameraGoalLeftTrigger and a.Owner == player then
		cameraGoalLeftTrigger = true
		Actor.Create("camera", true, { Owner = player, Location = CameraGoalLeft1.Location })
		Actor.Create("camera", true, { Owner = player, Location = CameraGoalLeft2.Location })
	end
end)

Trigger.OnEnteredFootprint(CameraGoalRightTrigger, function(a, id)
	if not cameraGoalRightTrigger and a.Owner == player then
		cameraGoalRightTrigger = true
		Actor.Create("camera", true, { Owner = player, Location = CameraGoalRight1.Location })
		Actor.Create("camera", true, { Owner = player, Location = CameraGoalRight2.Location })
	end
end)

Trigger.OnEnteredFootprint(ControlCenterTrigger, function(a, id)
	if not controlCenterTrigger and a.Owner == player and a.Type == "e1" then
		controlCenterTrigger = true
		FTurPrisoners.Kill()
		FTurLeft.Kill()
		FTurRight.Kill()
		FTurBottom.Kill()
		player.MarkCompletedObjective(sovietObjective1)
	end
end)

Trigger.OnEnteredFootprint(ControlCenterEngineerTrigger, function(a, id)
	if not controlCenterEngineerTrigger and a.Owner == player and a.Type == "e6" then
		controlCenterEngineerTrigger = true
		local fturA = Actor.Create("ftur", true, { Owner = player, Location = FTur1Goal.Location})
		local fturB = Actor.Create("ftur", true, { Owner = player, Location = FTur2Goal.Location})
		Camera.Position = CameraGoalCenter1.CenterPosition

		if not cameraGoalRightTrigger then
			Actor.Create("camera", true, { Owner = player, Location = CameraGoalCenter1.Location })
			Actor.Create("camera", true, { Owner = player, Location = CameraGoalCenter2.Location })
			Actor.Create("camera", true, { Owner = player, Location = CameraGoalCenter3.Location })
		end

		Utils.Do(GoalGuards, function(actor)
			if not actor.IsDead then
				actor.AttackMove(FTur1Goal.Location)
			end
		end)

		if not Tanya.IsDead then
			Tanya.Demolish(fturA)
			Tanya.Demolish(fturB)
		end

		player.MarkCompletedObjective(sovietObjective4)
	end
end)

Trigger.OnEnteredFootprint(FTurBottomTrigger, function(a, id)
	if not fTurBottomTrigger and a.Owner == player then
		fTurBottomTrigger = true
		if not rSoldierTrapTrigger then
			Actor.Create("camera", true, { Owner = player, Location = CameraRSoldier.Location })
			Actor.Create("camera", true, { Owner = player, Location = CameraFTurBottom.Location })
		end
	end
end)

Trigger.OnEnteredFootprint(FTurLeftTrigger, function(a, id)
	if not fTurLeftTrigger and a.Owner == player then
		fTurLeftTrigger = true
		Actor.Create("camera", true, { Owner = player, Location = CameraFTurLeft.Location })
	end
end)

Trigger.OnEnteredFootprint(FTurRightTrigger, function(a, id)
	if not fTurRightTrigger and a.Owner == player then
		fTurRightTrigger = true
		Actor.Create("camera", true, { Owner = player, Location = CameraFTurRight.Location })
	end
end)

Trigger.OnEnteredFootprint(GoalCenterTrigger, function(a, id)
	if not goalCenterTrigger and a.Owner == player and a.Type == "e6" then
		goalCenterTrigger = true
		player.MarkCompletedObjective(sovietObjective5)
	end
end)

Trigger.OnEnteredFootprint(GoalLeft1Trigger, function(a, id)
	if not goalLeft1Trigger and a.Owner == player and a.Type == "e6" then
		goalLeft1Trigger = true
		Media.PlaySpeechNotification(player, "ControlCenterDeactivated")
	end
end)

Trigger.OnEnteredFootprint(GoalLeft2Trigger, function(a, id)
	if not goalLeft2Trigger and a.Owner == player and a.Type == "e6" then
		goalLeft2Trigger = true
		Media.PlaySpeechNotification(player, "ControlCenterDeactivated")
	end
end)

Trigger.OnEnteredFootprint(GoalRight1Trigger, function(a, id)
	if not goalRight1Trigger and a.Owner == player and a.Type == "e6" then
		goalRight1Trigger = true
		Media.PlaySpeechNotification(player, "ControlCenterDeactivated")
	end
end)

Trigger.OnEnteredFootprint(GoalRight2Trigger, function(a, id)
	if not goalRight2Trigger and a.Owner == player and a.Type == "e6" then
		goalRight2Trigger = true
		Media.PlaySpeechNotification(player, "ControlCenterDeactivated")
	end
end)

Trigger.OnEnteredFootprint(RSoldierTrapTrigger, function(a, id)
	if not rSoldierTrapTrigger and a.Owner == player then
		rSoldierTrapTrigger = true
		if not fTurBottomTrigger then
			Actor.Create("camera", true, { Owner = player, Location = CameraRSoldier.Location })
			Actor.Create("camera", true, { Owner = player, Location = CameraFTurBottom.Location })
		end

		if not RSoldier1.IsDead and not RSoldierTrap1.IsDead then
			RSoldier1.Attack(RSoldierTrap1)
		end

		if not RSoldier2.IsDead and not RSoldierTrap2.IsDead then
			RSoldier2.Attack(RSoldierTrap2)
		end
	end
end)

Trigger.OnEnteredFootprint(SoldierTrap2Trigger, function(a, id)
	if not soldierTrap2Trigger and a.Owner == player then
		soldierTrap2Trigger = true
		Actor.Create("camera", true, { Owner = player, Location = CameraSoldierTrap2.Location })
		if not SoldierTrap2.IsDead then
			PrisonEntranceGuard.Attack(SoldierTrap2)
		end
		PrisonEntranceGuard.Move(SoldierTrap2Waypoint.Location)
	end
end)

Trigger.OnAllKilled(Engineers, function()
	enemy.MarkCompletedObjective(alliedObjective)
end)

Trigger.OnAllKilled(PrisonerGuards, function()
	Utils.Do(Engineers, function(actor)
		actor.Owner = player
	end)

	Prisoner6.Owner = player
	player.MarkCompletedObjective(sovietObjective2)
end)

Trigger.OnKilled(BarlCC, function()
	if not cameraCCTrigger then
		Actor.Create("camera", true, { Owner = player, Location = CameraCC.Location })
		cameraCCTrigger = true
	end

	Utils.Do(CCGuards, function(actor)
		if not actor.IsDead then
			actor.Hunt()
		end
	end)
end)

Trigger.OnKilled(PBoxBrl, function()
	PBox.Kill()
	Utils.Do(Dogs, function(actor)
		actor.Owner = player
	end)
	player.MarkCompletedObjective(sovietObjective6)
end)

Trigger.OnKilled(PrisonEntranceGuard, function()
	if controlCenterTrigger then
		Utils.Do(PrisonerGuards, function(actor)
			if not actor.IsDead then
				actor.Hunt()
			end
		end)
	end
end)

IntroSequence = function()
	StartingUnits = Reinforcements.Reinforce(player, StartingUnitsReinforcements, { StartingUnitsSpawn.Location, SoldierTrap1Waypoint1.Location }, 0)
	Trigger.AfterDelay(DateTime.Seconds(3), function()
		Utils.Do(EntranceGuards, function(actor)
			if not SoldierTrap1.IsDead then
				actor.Attack(SoldierTrap1)
			end
			actor.AttackMove(SoldierTrap1Waypoint1.Location)
			actor.AttackMove(SoldierTrap1Waypoint2.Location)
			actor.AttackMove(SoldierTrap1Waypoint3.Location)
		end)
		Media.PlaySpeechNotification(player, "TimerStarted")
		timerStarted = true
	end)

	-- Trigger a game over if the player lost all human units before the security system has been deactivated
	Trigger.OnAllKilled(StartingUnits, function()
		if not controlCenterTrigger then
			enemy.MarkCompletedObjective(alliedObjective)
		end
	end)
end

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

	Camera.Position = SoldierTrap1Waypoint1.CenterPosition
	Actor.Create("camera", true, { Owner = player, Location = CameraStart1.Location })
	Actor.Create("camera", true, { Owner = player, Location = CameraStart2.Location })

	IntroSequence()

	InitObjectives(player)
	alliedObjective = AddPrimaryObjective(enemy, "")
	sovietObjective1 = AddPrimaryObjective(player, "deactivate-security-system")
	sovietObjective2 = AddPrimaryObjective(player, "rescue-engineers")
	sovietObjective3 = AddPrimaryObjective(player, "engineers-coolant-station")
	sovietObjective4 = AddPrimaryObjective(player, "engineer-reprogram-security")
	sovietObjective5 = AddPrimaryObjective(player, "engineer-reactor-core")
	sovietObjective6 = AddSecondaryObjective(player, "free-dogs")
end

Tick = function()
	if player.HasNoRequiredUnits() and timerStarted then
		enemy.MarkCompletedObjective(alliedObjective)
	end

	if remainingTime == DateTime.Minutes(5) and Difficulty ~= "hard" then
		Media.PlaySpeechNotification(player, "WarningFiveMinutesRemaining")
	elseif remainingTime == DateTime.Minutes(4) then
		Media.PlaySpeechNotification(player, "WarningFourMinutesRemaining")
	elseif remainingTime == DateTime.Minutes(3) then
		Media.PlaySpeechNotification(player, "WarningThreeMinutesRemaining")
	elseif remainingTime == DateTime.Minutes(2) then
		Media.PlaySpeechNotification(player, "WarningTwoMinutesRemaining")
	elseif remainingTime == DateTime.Minutes(1) then
		Media.PlaySpeechNotification(player, "WarningOneMinuteRemaining")
	end

	if goalLeft1Trigger and goalLeft2Trigger and goalRight1Trigger and goalRight2Trigger then
		player.MarkCompletedObjective(sovietObjective3)
	end

	if remainingTime > 0 and timerStarted then
		if (remainingTime % DateTime.Seconds(1)) == 0 then
			Timer = UserInterface.Translate("time-until-meltdown", { ["time"] = Utils.FormatTime(remainingTime) })
			UserInterface.SetMissionText(Timer, player.Color)
		end
		remainingTime = remainingTime - 1
	elseif remainingTime == 0 then
		UserInterface.SetMissionText("")
		enemy.MarkCompletedObjective(alliedObjective)
	end
end