--[[ Generated with https://github.com/TypeScriptToLua/TypeScriptToLua ]]
local ____exports = {}
local requiemNextAiAt, onScriptedPhaseRequiem
function ____exports.nevermoreBumpRequiemAiCooldown(self)
    requiemNextAiAt = GameRules:GetGameTime() + RandomInt(____exports.NEVERMORE_REQUIEM_AI_CD_MIN, ____exports.NEVERMORE_REQUIEM_AI_CD_MAX)
end
--- Перед кастом реквиема после Terror Wave: очистка очередей серий ИИ + откладываем ульту у ИИ.
function ____exports.nevermoreNotifyScriptedPhaseRequiem(self)
    if onScriptedPhaseRequiem ~= nil then
        onScriptedPhaseRequiem(nil)
    end
    ____exports.nevermoreBumpRequiemAiCooldown(nil)
end
--- Кулдаун реквиема для ИИ, счётчик обязательных кастов ульты, принудительный каст.
____exports.NEVERMORE_REQUIEM_AI_CD_MIN = 72
____exports.NEVERMORE_REQUIEM_AI_CD_MAX = 96
--- Сколько раз босс должен скастовать реквием (ульт), чтобы снять «броню».
____exports.NEVERMORE_REQUIEM_REQUIRED_CASTS = 3
--- HP% строго ниже — включается −80% входящего, пока не набрано 3 каста.
____exports.NEVERMORE_REQUIEM_HP_THRESHOLD = 50
____exports.NEVERMORE_REQUIEM_DAMAGE_REDUCTION_PCT = 80
local REQUIEM_ABILITY = "boss_nevermore_requiem_barrage"
requiemNextAiAt = 0
local requiemCastCountByEnt = {}
function ____exports.nevermoreRegisterPhaseRequiemHook(self, fn)
    onScriptedPhaseRequiem = fn
end
function ____exports.nevermoreGetRequiemNextAiTime(self)
    return requiemNextAiAt
end
function ____exports.nevermoreGetRequiemCastCount(self, boss)
    return requiemCastCountByEnt[boss:entindex()] or 0
end
function ____exports.nevermoreIncrementRequiemCastCount(self, boss)
    local ent = boss:entindex()
    local next = math.min(____exports.NEVERMORE_REQUIEM_REQUIRED_CASTS, (requiemCastCountByEnt[ent] or 0) + 1)
    requiemCastCountByEnt[ent] = next
end
function ____exports.nevermoreClearRequiemCastCount(self, boss)
    requiemCastCountByEnt[boss:entindex()] = nil
end
--- Нужно добить касты ульты: уже ниже порога HP, а реквиемов < 3.
function ____exports.nevermoreNeedsMandatoryRequiem(self, boss)
    if not boss or boss:IsNull() or not boss:IsAlive() then
        return false
    end
    return boss:GetHealthPercent() < ____exports.NEVERMORE_REQUIEM_HP_THRESHOLD and ____exports.nevermoreGetRequiemCastCount(nil, boss) < ____exports.NEVERMORE_REQUIEM_REQUIRED_CASTS
end
local function getRequiemCastPositionForBoss(self, boss)
    local origin = GetGroundPosition(
        boss:GetAbsOrigin(),
        nil
    )
    local enemies = FindUnitsInRadius(
        boss:GetTeamNumber(),
        origin,
        nil,
        12000,
        DOTA_UNIT_TARGET_TEAM_ENEMY,
        bit.bor(DOTA_UNIT_TARGET_HERO, DOTA_UNIT_TARGET_BASIC),
        DOTA_UNIT_TARGET_FLAG_NONE,
        FIND_CLOSEST,
        false
    )
    for ____, e in ipairs(enemies) do
        do
            if not e or e:IsNull() or not e:IsAlive() then
                goto __continue11
            end
            local ep = GetGroundPosition(
                e:GetAbsOrigin(),
                nil
            )
            local to = ep - origin
            if to:Length2D() < 1 then
                goto __continue11
            end
            local fwd = to:Normalized()
            return GetGroundPosition(ep + fwd * 100, nil)
        end
        ::__continue11::
    end
    local f = boss:GetForwardVector()
    local len2d = math.sqrt(f.x * f.x + f.y * f.y)
    local dir = len2d < 0.01 and Vector(1, 0, 0) or Vector(f.x / len2d, f.y / len2d, 0)
    return GetGroundPosition(origin + dir * 400, nil)
end
--- Телепорт в центр (если есть) и каст реквиема.
function ____exports.tryForceNevermoreRequiemCast(self, boss)
    if not IsServer() then
        return false
    end
    if not boss or boss:IsNull() or not boss:IsAlive() then
        return false
    end
    if boss:IsChanneling() then
        return false
    end
    local req = boss:FindAbilityByName(REQUIEM_ABILITY)
    if not req or req:IsNull() then
        return false
    end
    if req:GetLevel() < 1 then
        req:SetLevel(1)
    end
    req:EndCooldown()
    if not req:IsFullyCastable() then
        return false
    end
    ____exports.nevermoreNotifyScriptedPhaseRequiem(nil)
    local center = Entities:FindByName(nil, "nevermore_center_point")
    if center and not center:IsNull() then
        FindClearSpaceForUnit(
            boss,
            center:GetAbsOrigin(),
            true
        )
    end
    local aim = getRequiemCastPositionForBoss(nil, boss)
    ExecuteOrderFromTable({
        UnitIndex = boss:entindex(),
        OrderType = DOTA_UNIT_ORDER_CAST_POSITION,
        AbilityIndex = req:entindex(),
        Position = aim
    })
    return true
end
return ____exports