--[[
   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.
]]

AtreidesMainBase = { AConYard1, AOutpost1, ARefinery1, ARefinery2, AHeavyFactory1, ALightFactory1, ALightFactory2, AHiTechFactory, AResearch, ARepair, AStarport, AGunt1, AGunt2, AGunt3, AGunt4, AGunt5, AGunt6, ARock1, ARock2, ARock3, ARock4, ARock5, ARock6, APower1, APower2, APower3, APower4, APower5, APower6, APower7, APower8, APower9, APower10, APower11, APower12, APower13, APower14, APower15, APower16, APower17, APower18, APower19, APower20, APower21, APower22, ASilo1, ASilo2, ASilo3 }

AtreidesSmallBase = { AOutpost2, ARefinery3, ABarracks, AHeavyFactory2, AGunt7, AGunt8, APower23, APower24, APower25, APower26, ASilo4, ASilo5, ASilo6, ASilo7 }

CorrinoBase = { CBarracks, COutpost, CPower1, CPower2, CPower3, CRock1, CRock2 }

EarlyGameStage = DateTime.Minutes(7)

AtreidesReinforcements =
{
	easy = { "sonic_tank" },
	normal = { "sonic_tank", "trooper" },
	hard = { "sonic_tank", "quad" }
}

CorrinoReinforcements =
{
	easy =
	{
		{ "sardaukar", "sardaukar", "sardaukar", "quad", "quad", "trike" },
		{ "sardaukar", "sardaukar", "combat_tank_h", "trike" }
	},

	normal =
	{
		{ "sardaukar", "sardaukar", "sardaukar", "combat_tank_h", "quad", "trike" },
		{ "sardaukar", "sardaukar", "combat_tank_h", "siege_tank" }
	},

	hard =
	{
		{ "sardaukar", "sardaukar", "sardaukar", "combat_tank_h", "quad", "quad", "trike" },
		{ "sardaukar", "sardaukar", "sardaukar", "combat_tank_h", "siege_tank" }
	}
}

EnemyAttackDelay =
{
	easy = 7000 ,
	normal = 6500 ,
	hard = 6000
}

CorrinoInitialAttackDelay =
{
	easy = DateTime.Minutes(4) ,
	normal = DateTime.Minutes(3) ,
	hard = DateTime.Minutes(2)
}

InitialAtreidesReinforcements =
{
	easy =
	{
		{ "trooper", "trooper", "trooper", "light_inf", "light_inf", "light_inf", "light_inf", "light_inf" },
		{ "combat_tank_a", "quad", "quad", "trike", "trike" },
		{ "trooper", "trooper", "quad", "quad" }
	},

	normal =
	{
		{ "trooper", "trooper", "trooper", "trooper", "light_inf", "light_inf", "light_inf", "light_inf", "light_inf", "light_inf" },
		{ "combat_tank_a", "combat_tank_a", "quad", "trike", "trike" },
		{ "trooper", "trooper", "trooper", "quad", "quad" }
	},

	hard =
	{
		{ "trooper", "trooper", "trooper", "trooper", "trooper", "light_inf", "light_inf", "light_inf", "light_inf", "light_inf", "light_inf", "light_inf" },
		{ "combat_tank_a", "combat_tank_a", "quad", "quad", "trike", "trike" },
		{ "trooper", "trooper", "trooper", "trooper", "quad", "quad" }
	}
}

InitialCorrinoReinforcements = { "trooper", "trooper", "trooper", "trooper", "trooper" }

AtreidesPath = { AtreidesEntry1.Location, AtreidesRally1.Location }

CorrinoPaths =
{
	{ CorrinoEntry1.Location, CorrinoRally1.Location },
	{ CorrinoEntry1.Location, CorrinoRally2.Location }
}

InitialAtreidesPaths =
{
	{ AtreidesEntry2.Location, AtreidesRally2.Location },
	{ AtreidesEntry3.Location, AtreidesRally3.Location },
	{ AtreidesEntry4.Location, AtreidesRally4.Location }
}

InitialCorrinoPath = { CorrinoEntry2.Location, CorrinoRally3.Location }

HarkonnenReinforcements =
{
	easy =
	{
		{ "trooper", "trooper", "light_inf", "light_inf", "light_inf", "light_inf", "light_inf" },
		{ "quad", "trike", "trike", "siege_tank", "combat_tank_h", "combat_tank_h" }
	},

	normal =
	{
		{ "trooper", "trooper", "light_inf", "light_inf", "light_inf", "light_inf" },
		{ "quad", "trike", "siege_tank", "combat_tank_h", "combat_tank_h" }
	},

	hard =
	{
		{ "trooper", "trooper", "light_inf", "light_inf", "light_inf", "light_inf" },
		{ "quad", "trike", "trike", "combat_tank_h", "combat_tank_h", "siege_tank" }
	},
}

HarkonnenPaths =
{
	{ HarkonnenEntry1.Location, HarkonnenRally1.Location },
	{ HarkonnenEntry2.Location, HarkonnenRally2.Location }
}

SendHarkonnenReinforcements = function(number)
	Reinforcements.ReinforceWithTransport(Harkonnen, "carryall.reinforce", HarkonnenReinforcements[Difficulty][number], HarkonnenPaths[number], { HarkonnenPaths[number][1] })
	Trigger.AfterDelay(DateTime.Seconds(9), function()
		Media.PlaySpeechNotification(Harkonnen, "Reinforce")
	end)
end

SendEnemyReinforcements = function(player, delay, path, unitTypes, customCondition, customHuntFunction)
	Trigger.AfterDelay(delay, function()
		if customCondition and customCondition() then
			return
		end

		local units = Reinforcements.ReinforceWithTransport(player, "carryall.reinforce", unitTypes, path, { path[1] })[2]

		if not customHuntFunction then
			customHuntFunction = IdleHunt
		end
		Utils.Do(units, customHuntFunction)

		SendEnemyReinforcements(player, delay, path, unitTypes, customCondition, customHuntFunction)
	end)
end

AirStrikeTimer = 7500
AirStrikeChargeTime = 7500
AirstrikeLogic = function(airstrikeProvider)
	if airstrikeProvider.IsDead then
		return
	end

	if DateTime.GameTime <= AirStrikeTimer then
		Trigger.AfterDelay(AirStrikeTimer - DateTime.GameTime + 1, function()
			AirstrikeLogic(airstrikeProvider)
		end)
		return
	end

	-- randomly choose if wait again or strike. During waiting Airstrike can still be used by DefensiveAirStrike
	if Utils.RandomInteger(1, 100) < 30 then
		Trigger.AfterDelay(1000, function() AirstrikeLogic(airstrikeProvider)end)
	else
		AirStrikeVSBuilding(airstrikeProvider)
		Trigger.AfterDelay(7500, function() AirstrikeLogic(airstrikeProvider) end)
		IsAirstrikeReady = false
	end
end

AirStrikeVSBuilding = function(airstrikeProvider)
	if airstrikeProvider.IsDead or  DateTime.GameTime < AirStrikeTimer  then
		return
	end

	local targets = Utils.Where(Harkonnen.GetActors(), function(actor)
		return
			actor.HasProperty("Sell") and
			actor.Type ~= "wall" and
			actor.Type ~= "medium_gun_turret" and
			actor.Type ~= "large_gun_turret" and
			actor.Type ~= "silo" and
			actor.Type ~= "wind_trap"
	end)

	if #targets > 0 then
		airstrikeProvider.TargetAirstrike(Utils.Random(targets).CenterPosition)
		AirStrikeTimer =  DateTime.GameTime + AirStrikeChargeTime
	end
end

DefensiveAirStrike = function(airstrikeProvider, possibleTargets)
	if airstrikeProvider.IsDead or DateTime.GameTime <= AirStrikeTimer then return end
	local bestValue = {}
	local bestIndex = 1
	for i = 1, #possibleTargets, 1 do
		local ActorsInCircle = Map.ActorsInCircle(possibleTargets[i].CenterPosition, WDist.FromCells(4), function(a)
			return
				a.Owner == Harkonnen
				and not a.IsDead
				and a.HasProperty("Attack")
		end)
		bestValue[i] = 0
		Utils.Do(ActorsInCircle, function(a)
			bestValue[i] = bestValue[i] + Actor.Cost(a.Type)
		end)
		if bestValue[i] > bestValue[bestIndex] then
			bestIndex = i
		end
	end
		airstrikeProvider.TargetAirstrike(possibleTargets[bestIndex].CenterPosition)
		AirStrikeTimer =  DateTime.GameTime + AirStrikeChargeTime
end

Tick = function()
	if Harkonnen.HasNoRequiredUnits() then
		AtreidesMain.MarkCompletedObjective(KillHarkonnen1)
		AtreidesSmall.MarkCompletedObjective(KillHarkonnen2)
		Corrino.MarkCompletedObjective(KillHarkonnen3)
	end

	if AtreidesMain.HasNoRequiredUnits() and AtreidesSmall.HasNoRequiredUnits() and not Harkonnen.IsObjectiveCompleted(KillAtreides) then
		Media.DisplayMessage(UserInterface.GetFluentMessage("atreides-annihilated"), Mentat)
		Harkonnen.MarkCompletedObjective(KillAtreides)
	end

	if Corrino.HasNoRequiredUnits() and not Harkonnen.IsObjectiveCompleted(KillCorrino) then
		Media.DisplayMessage(UserInterface.GetFluentMessage("emperor-annihilated"), Mentat)
		Harkonnen.MarkCompletedObjective(KillCorrino)
	end

	if (HEngineer.IsDead or AConYard2.IsDead) and not Harkonnen.IsObjectiveCompleted(CaptureAtreidesConYard) then
		Harkonnen.MarkFailedObjective(CaptureAtreidesConYard)
	end

	if (AHiTechFactory.IsDead or AHiTechFactory.Owner ~= AtreidesMain) and not HiTechIsDead then
		Media.DisplayMessage(UserInterface.GetFluentMessage("high-tech-factory-neutralized-imperial-reinforcements"), Mentat)
		HiTechIsDead = true
	end

	if DateTime.GameTime % DateTime.Seconds(10) == 0 and LastHarvesterEaten[AtreidesMain] then
		local units = AtreidesMain.GetActorsByType("harvester")

		if #units > 0 then
			LastHarvesterEaten[AtreidesMain] = false
			ProtectHarvester(units[1], AtreidesMain, AttackGroupSize[Difficulty])
		end
	end

	if DateTime.GameTime % DateTime.Seconds(10) == 0 and LastHarvesterEaten[OrdosSmall] then
		local units = OrdosSmall.GetActorsByType("harvester")

		if #units > 0 then
			LastHarvesterEaten[OrdosSmall] = false
			ProtectHarvester(units[1], OrdosSmall, AttackGroupSize[Difficulty])
		end
	end

	if IdlingUnits[AtreidesMain] == nil then return end
end

EmergencyBehaviour = function(player, target)
	if HiTechIsDead or not IsAirstrikeReady or player == Corrino then return end

	local targets = {}
	if player == AtreidesMain then
		targets = Map.ActorsInBox(Map.CenterOfCell(CPos.New(73,9)), Map.CenterOfCell(CPos.New(88,26)))
	else
		targets = Map.ActorsInBox(Map.CenterOfCell(CPos.New(5,18)), Map.CenterOfCell(CPos.New(16,32)))
	end

	targets = Utils.Where(targets, function(a)
		return a.Owner == Harkonnen
				and not a.IsDead
				and a.HasProperty("Attack")
	end)

	if targets[1] == nil  then return end
	DefensiveAirStrike(AHiTechFactory, targets)
end

WorldLoaded = function()
	AtreidesMain = Player.GetPlayer("Atreides Main Base")
	AtreidesSmall = Player.GetPlayer("Atreides Small Base")
	Corrino = Player.GetPlayer("Corrino")
	AtreidesMain.Cash = 5000
	AtreidesSmall.Cash = 5000
	Corrino.Cash = 5000
	Harkonnen = Player.GetPlayer("Harkonnen")
	InitObjectives(Harkonnen)

	CaptureAtreidesConYard = AddPrimaryObjective(Harkonnen, "capture-atreides-construction-yard-south")
	KillAtreides = AddPrimaryObjective(Harkonnen, "destroy-atreides")
	KillCorrino = AddPrimaryObjective(Harkonnen, "destroy-corrino")
	KillHarkonnen1 = AddPrimaryObjective(AtreidesMain, "")
	KillHarkonnen2 = AddPrimaryObjective(AtreidesSmall, "")
	KillHarkonnen3 = AddPrimaryObjective(Corrino, "")

	Media.DisplayMessage(UserInterface.GetFluentMessage("destroy-atreides-high-tech-factory-imperial-reinforcements"), Mentat)

	Camera.Position = HEngineer.CenterPosition
	AtreidesAttackLocation = AConYard2.Location
	Trigger.AfterDelay(EarlyGameStage,function() AirstrikeLogic(AHiTechFactory) end)

	Trigger.OnCapture(AConYard2, function()
		Harkonnen.MarkCompletedObjective(CaptureAtreidesConYard)
	end)

	Trigger.OnAllKilledOrCaptured(AtreidesMainBase, function()
		Utils.Do(AtreidesMain.GetGroundAttackers(), IdleHunt)
	end)

	Trigger.OnAllKilledOrCaptured(AtreidesSmallBase, function()
		Utils.Do(AtreidesSmall.GetGroundAttackers(), IdleHunt)
	end)

	Trigger.OnAllKilledOrCaptured(CorrinoBase, function()
		Utils.Do(Corrino.GetGroundAttackers(), IdleHunt)
	end)

	local atreidesWaveCondition = function() return Harkonnen.IsObjectiveCompleted(KillAtreides) or HiTechIsDead end
	local corrinoWaveCondition = function() return Harkonnen.IsObjectiveCompleted(KillCorrino) or HiTechIsDead end
	local huntFunction = function(unit)
		unit.AttackMove(AtreidesAttackLocation)
		IdleHunt(unit)
	end

	SendEnemyReinforcements(AtreidesMain, EnemyAttackDelay[Difficulty], AtreidesPath, AtreidesReinforcements[Difficulty], atreidesWaveCondition, huntFunction)

	Trigger.AfterDelay(CorrinoInitialAttackDelay[Difficulty], function()
		SendEnemyReinforcements(Corrino, EnemyAttackDelay[Difficulty], CorrinoPaths[1], CorrinoReinforcements[Difficulty][1], corrinoWaveCondition, huntFunction)
		SendEnemyReinforcements(Corrino, EnemyAttackDelay[Difficulty], CorrinoPaths[2], CorrinoReinforcements[Difficulty][2], corrinoWaveCondition, huntFunction)
	end)

	Actor.Create("upgrade.light", true, { Owner = AtreidesMain })
	Actor.Create("upgrade.heavy", true, { Owner = AtreidesMain })
	Actor.Create("upgrade.hightech", true, { Owner = AtreidesMain })
	Actor.Create("upgrade.barracks", true, { Owner = AtreidesSmall })
	Actor.Create("upgrade.heavy", true, { Owner = AtreidesSmall })
	Actor.Create("upgrade.barracks", true, { Owner = Corrino })
	Trigger.AfterDelay(0, ActivateAI)

	SendHarkonnenReinforcements(1)
	SendHarkonnenReinforcements(2)

	Trigger.AfterDelay(7000, function()
		SendHarkonnenReinforcements(1)
	end)

	Trigger.OnRemovedFromWorld(Crate1, function()
		VisionPoint.GrantCondition("activate", 100)
		Media.PlaySound("MULTI1.WAV")
		Camera.Position = VisionPoint.CenterPosition
	end)
end