----------------------------------------------------------------------------
--	Ranked Matchmaking AI v1.3 New Structure
--	Author: adamqqq		Email:adamqqq@163.com
----------------------------------------------------------------------------
--------------------------------------
-- General Initialization
--------------------------------------
local utility = require(GetScriptDirectory() .. "/utility")
local ability_item_usage_generic = require(GetScriptDirectory() .. "/ability_item_usage_generic")
local AbilityExtensions = require(GetScriptDirectory() .. "/util/AbilityAbstraction")
local ItemUsage = require(GetScriptDirectory() .. "/util/ItemUsage-New")

local debugmode = false
local npcBot = GetBot()
if npcBot == nil or npcBot:IsIllusion() then
	return
end

local Talents = {}
local Abilities = {}
local AbilitiesReal = {}

ability_item_usage_generic.InitAbility(Abilities, AbilitiesReal, Talents)

local AbilityToLevelUp =
{
	Abilities[3],
	Abilities[1],
	Abilities[1],
	Abilities[2],
	Abilities[1],
	Abilities[5],
	Abilities[1],
	Abilities[2],
	Abilities[2],
	"talent",
	Abilities[2],
	Abilities[5],
	Abilities[3],
	Abilities[3],
	"talent",
	Abilities[3],
	"nil",
	Abilities[5],
	"nil",
	"talent",
	"nil",
	"nil",
	"nil",
	"nil",
	"talent",
}

local TalentTree = {
	function()
		return Talents[1]
	end,
	function()
		return Talents[2]
	end,
	function()
		return Talents[6]
	end,
	function()
		return Talents[7]
	end
}

-- check skill build vs current level
utility.CheckAbilityBuild(AbilityToLevelUp)

function BuybackUsageThink()
	ability_item_usage_generic.BuybackUsageThink();
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink();
end

function AbilityLevelUpThink()
	ability_item_usage_generic.AbilityLevelUpThink2(AbilityToLevelUp, TalentTree)
end

--------------------------------------
-- Ability Usage Thinking
--------------------------------------
local cast = {}
cast.Desire = {}
cast.Target = {}
cast.Type = {}
local Consider = {}
local CanCast = { utility.NCanCast, utility.NCanCast, utility.NCanCast, function(t)
	return AbilityExtensions:StunCanCast(t, AbilitiesReal[4], true, false)
end }
local enemyDisabled = utility.enemyDisabled

function GetComboDamage()
	return ability_item_usage_generic.GetComboDamage(AbilitiesReal)
end

function GetComboMana()
	return ability_item_usage_generic.GetComboMana(AbilitiesReal)
end

Consider[1] = function()

	local abilityNumber = 1
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();
	local Radius = ability:GetAOERadius();


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(CastRange + 0, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange + 0, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)

	--try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (CanCast[abilityNumber](WeakestEnemy))
			then
				if (
					HeroHealth <= WeakestEnemy:GetActualIncomingDamage(Damage, DAMAGE_TYPE_MAGICAL) or
						(
						HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
							npcBot:GetMana() > ComboMana))
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy:GetLocation();
				end
			end
		end
	end
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--Last hit
	if (npcBot:GetActiveMode() == BOT_MODE_LANING)
	then
		if (WeakestCreep ~= nil)
		then
			if ((ManaPercentage > 0.5 or npcBot:GetMana() > ComboMana) and GetUnitToUnitDistance(npcBot, WeakestCreep) >= 300)
			then
				local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, Damage);
				if (locationAoE.count >= 1) then
					return BOT_ACTION_DESIRE_LOW - 0.02, locationAoE.targetloc;
				end
			end
		end
	end

	if (npcBot:GetActiveMode() == BOT_MODE_LANING)
	then
		if ((ManaPercentage > 0.5 or npcBot:GetMana() > ComboMana) and ability:GetLevel() >= 2)
		then
			local locationAoE = npcBot:FindAoELocation(true, true, npcBot:GetLocation(), CastRange, Radius, 0, 0);
			if (locationAoE.count >= 2) then
				return BOT_ACTION_DESIRE_LOW - 0.01, locationAoE.targetloc;
			end
		end
	end

	-- If we're farming and can kill 3+ creeps with LSA
	if (npcBot:GetActiveMode() == BOT_MODE_FARM) then
		local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, Damage);

		if (locationAoE.count >= 3) then
			return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
		end
	end

	-- If we're pushing or defending a lane and can hit 4+ creeps, go for it
	if (npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_BOT or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_BOT)
	then
		local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, 0);

		if (locationAoE.count >= 4)
		then
			return BOT_ACTION_DESIRE_LOW + 0.01, locationAoE.targetloc;
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcTarget = npcBot:GetTarget();

		if (npcTarget ~= nil)
		then
			if (CanCast[abilityNumber](npcTarget))
			then
				return BOT_ACTION_DESIRE_MODERATE, npcTarget:GetLocation();
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

CanCast[2] = function(t)
	return not t:IsInvulnerable() and not AbilityExtensions:CannotBeTargetted(t)
end
Consider[2] = function()

	local abilityNumber = 2
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local modifierName = "modifier_magnataur_empower"
	local CastRange = ability:GetCastRange();
	local Damage = 0

	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(CastRange + 300, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange + 300, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)

	-- If we're pushing or defending a lane
	if (npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_BOT or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_BOT)
	then
		if (ManaPercentage > 0.6)
		then
			for _, myFriend in pairs(allys) do
				if (GetUnitToUnitDistance(myFriend, npcBot) < CastRange and not myFriend:HasModifier(modifierName))
				then
					return BOT_ACTION_DESIRE_MODERATE, myFriend;
				end
			end
			if not npcBot:HasModifier(modifierName) then
				return BOT_ACTION_DESIRE_MODERATE, npcBot;
			end
		end
	end

	-- If my mana is enough,buff myfriend.
	if (ManaPercentage > 0.6 and npcBot:GetMana() > ComboMana)
	then
		for _, ally in pairs(allys) do
			if (not ally:HasModifier(modifierName))
			then
				return BOT_ACTION_DESIRE_MODERATE, ally;
			end
		end

		if not npcBot:HasModifier(modifierName) then
			return BOT_ACTION_DESIRE_MODERATE, npcBot;
		end

	end

	return BOT_ACTION_DESIRE_NONE, 0
end

Consider[3] = function()

	local abilityNumber = 3
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() or AbilityExtensions:CannotMove(npcBot) then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();
	local Radius = ability:GetAOERadius()
	local CastPoint = ability:GetCastPoint();

	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(CastRange + 300, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange + 300, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)

	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	-- Check for a channeling enemy
	for _, npcEnemy in pairs(enemys) do
		if (npcEnemy:IsChanneling())
		then
			return BOT_ACTION_DESIRE_HIGH, npcEnemy:GetLocation();
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	-- If we're farming and can kill 3+ creeps with LSA
	if (npcBot:GetActiveMode() == BOT_MODE_FARM) then
		local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, Damage);

		if (locationAoE.count >= 3) then
			return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
		end
	end

	-- If we're seriously retreating, see if we can land a stun on someone who's damaged us recently
	if (npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_HIGH)
	then
		if (npcBot:WasRecentlyDamagedByAnyHero(2.0))
		then
			return BOT_ACTION_DESIRE_HIGH, utility.Fountain(GetTeam());
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local locationAoE = npcBot:FindAoELocation(true, true, npcBot:GetLocation(), CastRange, Radius, 0, 0);
		if (locationAoE.count >= 2) then
			return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
		end

		local npcEnemy = npcBot:GetTarget();

		if (npcEnemy ~= nil)
		then
			if (CanCast[abilityNumber](npcEnemy))
			then
				return BOT_ACTION_DESIRE_MODERATE, npcEnemy:GetExtrapolatedLocation(CastPoint);
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

Consider[4] = function()
	local abilityNumber = 4
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber]

	if not ability:IsFullyCastable() or ability:IsHidden() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end
	local radius = ability:GetSpecialValueInt("radius")
	local pullAngle = ability:GetSpecialValueInt("pull_angle") / 2
	local CastPoint = ability:GetCastPoint()
	local function CanToss(target)
		local loc = target:GetExtrapolatedLocation(CastPoint)
		return GetUnitToLocationDistance(npcBot, loc) <= radius and npcBot:IsFacingLocation(loc, pullAngle)
	end

	local f = AbilityExtensions:Filter(AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, 500, true), CanToss)
	f = AbilityExtensions:Filter(f, function(t) AbilityExtensions:NormalCanCast(t) end)
	f = AbilityExtensions:GetEnemyHeroNumber(f)
	if AbilityExtensions:NotRetreating(npcBot) and f >= 2 or
		f == 1 and #AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, 1200, true) == 1 then
		return BOT_MODE_DESIRE_HIGH
	end

	local function CanTossAfterTurnBack(target)
		local loc = target:GetExtrapolatedLocation(CastPoint)
		return GetUnitToLocationDistance(npcBot, loc) <= radius and not npcBot:IsFacingLocation(loc, 180 - pullAngle)
	end

	f = AbilityExtensions:Filter(AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, 500, true), CanTossAfterTurnBack)
	f = AbilityExtensions:Filter(f, function(t) AbilityExtensions:NormalCanCast(t) end)
	f = AbilityExtensions:GetEnemyHeroNumber(f)
	if AbilityExtensions:NotRetreating(npcBot) and f >= 1 then
		npcBot:Action_MoveDirectly(utility.GetUnitsTowardsLocation(npcBot, f[1]:GetLocation(), 10))
		npcBot:ActionQueue_UseAbility(ability)
		return 0
	end

	return 0
end

Consider[5] = function()
	local abilityNumber = 5
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = 0
	local Damage = ability:GetAbilityDamage()
	local Radius = ability:GetAOERadius() - 50
	local CastPoint = ability:GetCastPoint()

	local blink = AbilityExtensions:GetAvailableBlink(npcBot)
	if (blink ~= nil and blink:IsFullyCastable())
	then
		CastRange = CastRange + 1200
		if (npcBot:GetActiveMode() == BOT_MODE_ATTACK)
		then
			local locationAoE = npcBot:FindAoELocation(true, true, npcBot:GetLocation(), CastRange, Radius, 0, 0);
			if (locationAoE.count >= 2)
			then
				ItemUsage.UseItemOnLocation(npcBot, blink, locationAoE.targetloc);
				return 0
			end
		end
	end

	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(Radius, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(Radius, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)
	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	--Try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (
				HeroHealth <= WeakestEnemy:GetActualIncomingDamage(Damage, DAMAGE_TYPE_MAGICAL) or
					(
					HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
						npcBot:GetMana() > ComboMana))
			then
				return BOT_ACTION_DESIRE_HIGH
			end
		end
	end
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--protect myself
	if ((npcBot:WasRecentlyDamagedByAnyHero(2) and #enemys >= 1) or #enemys >= 2)
	then
		for _, npcEnemy in pairs(enemys) do
			return BOT_ACTION_DESIRE_HIGH
		end
	end

	-- If my mana is enough,use it at enemy
	if (npcBot:GetActiveMode() == BOT_MODE_LANING)
	then
		if ((ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana))
		then
			if (WeakestEnemy ~= nil)
			then
				if (GetUnitToUnitDistance(npcBot, WeakestEnemy) < Radius - CastPoint * WeakestEnemy:GetCurrentMovementSpeed())
				then
					return BOT_ACTION_DESIRE_LOW
				end
			end
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = AbilityExtensions:GetTargetIfGood(npcBot)

		if (npcEnemy ~= nil)
		then
			if (GetUnitToUnitDistance(npcBot, npcEnemy) >= 300)
			then
				if (GetUnitToUnitDistance(npcBot, npcEnemy) <= 1200 + Radius and blink ~= nil)
				then
					ItemUsage.UseItemOnLocation(npcBot, blink, npcEnemy:GetExtrapolatedLocation(CastPoint));
					return 0
				end
			else
				return BOT_ACTION_DESIRE_MODERATE
			end

		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

AbilityExtensions:AutoModifyConsiderFunction(npcBot, Consider, AbilitiesReal)

local abilityUsedInfo = {}

function AbilityUsageThink()

	-- Check if we're already using an ability
	if (npcBot:IsUsingAbility() or npcBot:IsChanneling() or npcBot:IsSilenced()) then
		if npcBot:IsCastingAbility() then
			if npcBot:GetCurrentActiveAbility() == AbilitiesReal[5] then
				local radius = AbilitiesReal[5]:GetAOERadius()
				if AbilityExtensions:Count(AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, radius), CanCast[5]) == 0 then
					print("Magnataur: cancel ultimate")
					npcBot:Action_ClearActions(true)
				end
			end
		end
		return
	end
	abilityUsedInfo.index = nil

	ComboMana = GetComboMana()
	AttackRange = npcBot:GetAttackRange()
	ManaPercentage = npcBot:GetMana() / npcBot:GetMaxMana()
	HealthPercentage = npcBot:GetHealth() / npcBot:GetMaxHealth()

	cast = ability_item_usage_generic.ConsiderAbility(AbilitiesReal, Consider)
	---------------------------------debug--------------------------------------------
	if (debugmode == true)
	then
		ability_item_usage_generic.PrintDebugInfo(AbilitiesReal, cast)
	end
	local usedAbilityIndex, target, castType = ability_item_usage_generic.UseAbility(AbilitiesReal, cast)
	if usedAbilityIndex ~= nil then
		abilityUsedInfo.index = usedAbilityIndex
	end
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink()
end
