----------------------------------------------------------------------------
--	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 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[1],
	Abilities[2],
	Abilities[1],
	Abilities[3],
	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[4]
	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:NormalCanCast(t, false, DAMAGE_TYPE_PHYSICAL, true, true, true) and
		not AbilityExtensions:HasAbilityRetargetModifier(npcBot)
end, function(t)
	return AbilityExtensions:SpellCanCast(t, true, true, true) and not AbilityExtensions:HasAbilityRetargetModifier(npcBot)
end, utility.NCanCast, function(t)
	return AbilityExtensions:NormalCanCast(t, false, DAMAGE_TYPE_PHYSICAL, true, false, false)
end, utility.CanCastPassive }
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() --Target Ability Example
	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 = 65 + npcBot:GetAttackDamage() * (0.1 + 0.15 * ability:GetLevel())

	local HeroHealth = 10000
	local CreepHealth = 10000
	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
	--------------------------------------
	--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_PHYSICAL) or
						(
						HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_PHYSICAL) and
							npcBot:GetMana() > ComboMana))
				then
					return BOT_ACTION_DESIRE_HIGH - 0.04, WeakestEnemy;
				end
			end
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--protect myself
	if ((npcBot:WasRecentlyDamagedByAnyHero(5) and npcBot:GetActiveMode() == BOT_MODE_RETREAT))
	then
		for _, npcEnemy in pairs(enemys) do
			if (CanCast[abilityNumber](npcEnemy) and GetUnitToUnitDistance(npcBot, npcEnemy) <= CastRange)
			then
				return BOT_ACTION_DESIRE_HIGH - 0.03, npcEnemy
			end
		end
	end

	--Last hit
	if (npcBot:GetActiveMode() == BOT_MODE_LANING or
		npcBot:GetActiveMode() == BOT_MODE_FARM)
	then
		if (WeakestCreep ~= nil)
		then
			if (
				(ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana) and
					GetUnitToUnitDistance(npcBot, WeakestCreep) >= AttackRange + 300)
			then
				if (CreepHealth <= WeakestCreep:GetActualIncomingDamage(Damage, DAMAGE_TYPE_PHYSICAL))
				then
					return BOT_ACTION_DESIRE_MODERATE + 0.05, WeakestCreep;
				end
			end
		end
	end

	-- If my mana is enough, use it at enemy
	if (npcBot:GetActiveMode() == BOT_MODE_LANING)
	then
		if (ManaPercentage > 0.4 and ability:GetLevel() >= 3 or ManaPercentage > 0.7 and ability:GetLevel() >= 2) and
			CreepHealth >= 150
		then
			if (WeakestEnemy ~= nil)
			then
				if (CanCast[abilityNumber](WeakestEnemy))
				then
					return BOT_ACTION_DESIRE_MODERATE - 0.01, WeakestEnemy;
				end
			end
		end
	end

	-- If we're pushing or defending a lane
	if AbilityExtensions:IsFarmingOrPushing(npcBot)
	then
		if (#enemys >= 1)
		then
			if (ManaPercentage > 0.5 or npcBot:GetMana() > ComboMana and AbilitiesReal[abilityNumber]:GetLevel() >= 1)
			then
				if (WeakestEnemy ~= nil)
				then
					if (CanCast[abilityNumber](WeakestEnemy) and GetUnitToUnitDistance(npcBot, WeakestEnemy) < CastRange + 75 * #allys)
					then
						return BOT_ACTION_DESIRE_LOW, WeakestEnemy;
					end
				end
			end
		end

		if (#creeps >= 3)
		then
			if (ManaPercentage > 0.5 or npcBot:GetMana() > ComboMana and AbilitiesReal[abilityNumber]:GetLevel() >= 1)
			then
				if (CanCast[abilityNumber](creeps[1]) and GetUnitToUnitDistance(npcBot, creeps[1]) < CastRange + 75 * #allys)
				then
					return BOT_ACTION_DESIRE_LOW, creeps[1];
				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() or AbilityExtensions:CannotTeleport(npcBot) then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	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)

	--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_PHYSICAL) and
						npcBot:GetMana() > ComboMana and #allys >= #enemys)
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy;
				end
			end
		end
	end
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--protect myself
	if ((npcBot:WasRecentlyDamagedByAnyHero(5) and npcBot:GetActiveMode() == BOT_MODE_RETREAT))
	then
		local allydistance = npcBot:DistanceFromFountain()
		local npcEnemy
		for _, tempEnemy in pairs(allys) do
			local tempDistance = tempEnemy:DistanceFromFountain()
			if (tempDistance < allydistance)
			then
				npcEnemy = tempEnemy
				allydistance = tempDistance
			end
		end
		if (npcEnemy ~= nil)
		then
			if (CanCast[abilityNumber](npcEnemy))
			then
				return BOT_ACTION_DESIRE_HIGH, npcEnemy
			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 (ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana and #allys >= #enemys)
		then
			if (npcEnemy ~= nil)
			then
				if (
					CanCast[abilityNumber](npcEnemy) and GetUnitToUnitDistance(npcBot, npcEnemy) < CastRange + 75 * #allys and
						#allys >= #enemys)
				then
					return BOT_ACTION_DESIRE_MODERATE, npcEnemy;
				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:GetAOERadius();

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

	local dispellRadius = ability:GetCastRange()
	local realEnemiesNearby = AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, dispellRadius)

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--protect myself
	if npcBot:GetActiveMode() == BOT_MODE_LANING then
		if HealthPercentage >= 0.6 or HealthPercentage >= 0.3 and ManaPercentage <= 0.3 then
			return 0
		end
	end
	if (npcBot:WasRecentlyDamagedByAnyHero(1) or
		(npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_MODERATE))
	then
		if (#realEnemiesNearby == 0)
		then
			return BOT_ACTION_DESIRE_HIGH
		end
	end

	if AbilityExtensions:HasScepter(npcBot) then
		if AbilityExtensions:GetALlyDispellWorthModifiers(npcBot) then
			return BOT_ACTION_DESIRE_HIGH
		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 (GetUnitToUnitDistance(npcBot, npcEnemy) > CastRange + 75 * #allys)
			then
				return BOT_ACTION_DESIRE_MODERATE
			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
	end

	local CastRange = ability:GetAOERadius();

	local allys = AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, 1200, true)
	local enemys = AbilityExtensions:GetNearbyNonIllusionHeroes(npcBot, CastRange - 100, false)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)

	if AbilityExtensions:IsAttackingEnemies(npcBot) then
		if #enemys >= 2 or #enemys == 1 and #allys == 0 then
			return BOT_ACTION_DESIRE_HIGH
		end
	end
	return 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
