----------------------------------------------------------------------------
--	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 TeamItemThink = require(GetScriptDirectory() .. "/util/TeamItemThink")
local RoleUtil = require(GetScriptDirectory() .. "/util/RoleUtility")

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[2],
	Abilities[1],
	Abilities[2],
	Abilities[1],
	Abilities[2],
	Abilities[4],
	Abilities[2],
	Abilities[1],
	Abilities[1],
	"talent",
	Abilities[3],
	Abilities[4],
	Abilities[3],
	Abilities[3],
	"talent",
	Abilities[3],
	"nil",
	Abilities[4],
	"nil",
	"talent",
	"nil",
	"nil",
	"nil",
	"nil",
	"talent",
}

local TalentTree = {
	function()
		return Talents[1]
	end,
	function()
		return Talents[3]
	end,
	function()
		return Talents[6]
	end,
	function()
		return Talents[8]
	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 = { function(t)
	return AbilityExtensions:StunCanCast(t, AbilitiesReal[1], false, false, true, false)
end, function(npcTarget)
	return utility.NCanCast(npcTarget) and npcTarget:GetLevel() <= 5 and not npcTarget:IsAncientCreep()
end, AbilityExtensions.NormalCanCastFunction, function(t)
	return AbilityExtensions:NormalCanCast(t, false, DAMAGE_TYPE_PRUE, true)
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 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() and CanCast[abilityNumber](npcEnemy))
		then
			return BOT_ACTION_DESIRE_HIGH, npcEnemy
		end
	end

	--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;
				end
			end
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--protect myself
	local enemys2 = npcBot:GetNearbyHeroes(400, true, BOT_MODE_NONE);
	-- 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) or #enemys2 >
			0)
	then
		for _, npcEnemy in pairs(enemys) do
			if (
				(npcBot:WasRecentlyDamagedByHero(npcEnemy, 2.0) and CanCast[abilityNumber](npcEnemy)) or
					GetUnitToUnitDistance(npcBot, npcEnemy) < 400)
			then
				return BOT_ACTION_DESIRE_HIGH, npcEnemy;
			end
		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) and ability:GetLevel() >= 2)
		then
			if (WeakestEnemy ~= nil)
			then
				if (CanCast[abilityNumber](WeakestEnemy))
				then
					return BOT_ACTION_DESIRE_LOW, WeakestEnemy;
				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 = npcBot:GetTarget();

		if (npcEnemy ~= nil)
		then
			if (
				CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy) and
					GetUnitToUnitDistance(npcBot, npcEnemy) < CastRange + 75 * #allys)
			then
				return BOT_ACTION_DESIRE_MODERATE, npcEnemy
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

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 CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();
	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)
	local creeps2 = npcBot:GetNearbyCreeps(CastRange + 300, false)
	local WeakestCreep2, CreepHealth2 = utility.GetWeakestUnit(creeps2)
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--protect myself
	local enemys2 = npcBot:GetNearbyHeroes(400, true, BOT_MODE_NONE);
	--[[ 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) or #enemys2>0) 
	then
		if ( npcBot:WasRecentlyDamagedByAnyHero( 2.0 ) or GetUnitToUnitDistance(npcBot,npcEnemy)<400) 
		then
			for k,creep in pairs(creeps) do
				if(CanCast[abilityNumber](creep)) then
					return BOT_ACTION_DESIRE_HIGH, creep;
				end
			end
			for k,creep in pairs(creeps2) do
				if(CanCast[abilityNumber](creep)) then
					return BOT_ACTION_DESIRE_HIGH, creep;
				end
			end
		end
	end]]

	-- If my mana is enough,use it at enemy
	-- If we're farming and can hit 2+ creeps and kill 1+
	if (npcBot:GetActiveMode() == BOT_MODE_FARM or npcBot:GetActiveMode() == BOT_MODE_LANING)
	then
		if (#creeps >= 2)
		then
			for k, creep in pairs(creeps) do
				if (CanCast[abilityNumber](creep)) then
					return BOT_ACTION_DESIRE_HIGH, creep;
				end
			end
			for k, creep in pairs(creeps2) do
				if (CanCast[abilityNumber](creep)) then
					return BOT_ACTION_DESIRE_HIGH, creep;
				end
			end
		end
	end

	-- If we're pushing or defending a lane
	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
		for k, creep in pairs(creeps) do
			if (CanCast[abilityNumber](creep)) then
				return BOT_ACTION_DESIRE_HIGH, creep;
			end
		end
		for k, creep in pairs(creeps2) do
			if (CanCast[abilityNumber](creep)) then
				return BOT_ACTION_DESIRE_HIGH, creep;
			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 = npcBot:GetTarget();

		if (npcEnemy ~= nil)
		then
			if (CanCast[abilityNumber](npcEnemy) and GetUnitToUnitDistance(npcBot, npcEnemy) < CastRange + 75 * #allys)
			then
				for k, creep in pairs(creeps) do
					if (CanCast[abilityNumber](creep)) then
						return BOT_ACTION_DESIRE_HIGH, creep;
					end
				end
				for k, creep in pairs(creeps2) do
					if (CanCast[abilityNumber](creep)) then
						return BOT_ACTION_DESIRE_HIGH, creep;
					end
				end
			end
		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() 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 = AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, 1200, false)
	local npcNetWorth = npcBot:GetNetWorth()
	local killCreepsAlly = allys:Any(function(t)
		local name = t:GetUnitName()
		local carry = RoleUtil.hero_roles[name].carry
		local nw = t:GetNetWorth()
		if carry >= 2 and (nw >= npcNetWorth * 1.5 or nw >= 12000) or carry >= 3 and nw >= 9000 then
			return true
		end
		return false
	end)
	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
	--------------------------------------
	--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(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
						npcBot:GetMana() > ComboMana)
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy:GetExtrapolatedLocation(CastPoint);
				end
			end
		end
	end
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	if (npcBot:GetActiveMode() == BOT_MODE_FARM) then
		local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, 0)
		if locationAoE.count >= 4 and not killCreepsAlly 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
		if TeamItemThink.EnemyReadyToFight() < #allys then

			local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, 0);

			if (locationAoE.count >= 4) and not killCreepsAlly
			then
				return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
			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 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_HIGH, 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() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange()
	local Radius = ability:GetAOERadius() - 50
	local CastPoint = ability:GetCastPoint()

	local allys = AbilityExtensions:Filter(AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot),
		function(t) return AbilityExtensions:NotRetreating(t) end)
	local enemys = AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, CastRange + 300)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)

	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 channelingEnemies = AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot)
	channelingEnemies = AbilityExtensions:Filter(channelingEnemies,
		function(t) return AbilityExtensions:IsChannelingAbility(t) and not t:IsInvulnerable() and t:CanBeSeen() end)
	channelingEnemies = AbilityExtensions:Map(channelingEnemies, function(t) return { t, t:GetCurrentActiveAbility() } end)
	channelingEnemies = AbilityExtensions:Map(channelingEnemies,
		function(t) return { t[1], t[2] and t[2]:GetCooldown() or 25 } end)
	channelingEnemies = AbilityExtensions:SortByMaxFirst(channelingEnemies, function(t) return t[2] end)
	if AbilityExtensions:Any(channelingEnemies) then
		for _, channelingEnemy in ipairs(channelingEnemies) do
			if channelingEnemy[1]:IsMagicImmune() or not AbilitiesReal[1]:IsFullyCastable() then
				if channelingEnemy[2] > 60 then
					return RemapValClamped(channelingEnemy[2], 60, 120, 0.5, 0.7), channelingEnemy[1]:GetLocation()
				end
			end
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------

	local enemies = AbilityExtensions:Filter(AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot),
		function(t) return CanCast[4](t) end)
	local enemyCount = AbilityExtensions:GetEnemyHeroNumber(npcBot, enemies)
	local locationAoE = npcBot:FindAoELocation(true, true, npcBot:GetLocation(), CastRange, Radius, CastPoint, 0)
	if locationAoE.count >= 2 and locationAoE.count == enemyCount and #allys <= enemyCount / 2 then
		return RemapValClamped(locationAoE.count / enemyCount, 0.7, 1, 0.5, 1), locationAoE.targetloc
	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 (locationAoE.count >= 2)
		then
			return BOT_ACTION_DESIRE_LOW - 0.15, 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
		if (locationAoE.count >= 2) then
			return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc
		end
	end

	-- If we're in a teamfight, use it
	local tableNearbyAttackingAlliedHeroes = npcBot:GetNearbyHeroes(1000, false, BOT_MODE_ATTACK);
	if (#tableNearbyAttackingAlliedHeroes >= 2)
	then
		local npcEnemy = AbilityExtensions:GetTargetIfGood(npcBot)

		if (npcEnemy ~= nil and enemys ~= nil and #enemys >= 2)
		then
			return BOT_ACTION_DESIRE_HIGH, locationAoE.targetloc
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;
end

AbilityExtensions:AutoModifyConsiderFunction(npcBot, Consider, AbilitiesReal)

function AbilityUsageThink()

	-- Check if we're already using an ability
	if (npcBot:IsUsingAbility() or npcBot:IsChanneling() or npcBot:IsSilenced())
	then
		return
	end

	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
	ability_item_usage_generic.UseAbility(AbilitiesReal, cast)
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink()
end
