namespace Luneraria.Core
{
    /// <summary>
    /// Every tunable number of Champions of Luneraria (reference: lune_balance.gd with
    /// data/luneraria/balance_default.tres). Tests may use variants; bots never get extras.
    /// </summary>
    public sealed class LuneBalance
    {
        // Simulation
        /// <summary>Fixed combat step in seconds (20 steps per second of combat time).</summary>
        public double SimStep = 0.05;
        /// <summary>Ends only the current combat phase, never the match.</summary>
        public double CombatTimeLimit = 180.0;
        public double MarchSpeedFactor = 1.6;
        public double AggroRadius = 7.0;
        /// <summary>Targets further away than this are dropped and re-acquired.</summary>
        public double LeashRadius = 10.0;
        public double LaneHalfWidth = 2.6;

        // Economy
        public int StartGold = 220;
        public int BaseIncome = 70;
        public int IncomePerRound = 4;
        public int IncomeGrowthCap = 80;
        public int SupplyCap = 12;
        public double SellRefund = 0.75;
        /// <summary>Share of lane kill gold for the lane player; the rest splits evenly in the team.</summary>
        public double LaneShare = 0.5;

        // Waves
        public int WaveBaseCount = 3;
        /// <summary>One more monster per lane every N rounds, up to WaveMaxCount.</summary>
        public int WaveCountEvery = 3;
        public int WaveMaxCount = 7;
        public double WaveHpGrowth = 0.11;
        public double WaveDamageGrowth = 0.07;
        public double WaveGrowthQuadratic = 0.0015;
        public double MonsterBountyScale = 2.0;
        public double BountyGrowth = 0.04;
        /// <summary>Monster types in rotation order; later indices unlock later.</summary>
        public string[] MonsterPool = { "e01", "e02", "e04", "e03", "e06", "e05" };

        // Buildings
        public double TowerOuterHp = 6000.0;
        public double TowerInnerHp = 7500.0;
        public double BaseTowerHp = 9000.0;
        public double CoreHp = 12000.0;
        public double TowerDamage = 90.0;
        public double BaseTowerDamage = 120.0;
        /// <summary>Must exceed the longest unit reach (6.5 m + building radius).</summary>
        public double TowerRange = 8.6;
        public double TowerAttackInterval = 1.0;
        public double BuildingRadius = 1.3;
        public int BountyOuterTower = 150;
        public int BountyInnerTower = 210;
        public int BountyBaseTower = 270;

        // Map
        public double InnerTowerFraction = 0.17;
        public double OuterTowerFraction = 0.35;
        public double TowerSideOffset = 3.4;

        // S1: extended rules (MatchOptions.Extended; the reference rules ignore all of these).
        /// <summary>Legion TD 2: a booked attack champion raises the booker's income by cost / this, for good.</summary>
        public int ChampionIncomeDivisor = 12;
        /// <summary>S3: share of a champion's bounty the defenders get under the extended rules (Legion TD 2: less than the send costs).</summary>
        public double ChampionBountyShare = 0.5;
        /// <summary>Dota 2 barracks: waves of a team on a lane whose enemy inner tower fell get stronger.</summary>
        public double BarracksBoost = 0.25;
        public int BarracksExtraMonsters = 1;
        /// <summary>Dota 2 buyback, adapted: a fallen hero starts the next combat exhausted, unless bought back.</summary>
        public double ExhaustedHp = 0.6;
        public int BuybackBase = 60;
        public int BuybackPerLevel = 20;
        /// <summary>League of Legends dragon souls: each grotto victory blesses the team, up to the soul.</summary>
        public double BlessingStep = 0.04;
        public int BlessingMax = 4;
        /// <summary>Moon soul (all stacks): heroes regenerate this share of their health per second.</summary>
        public double SoulRegen = 0.01;

        // S2: extended rules.
        /// <summary>Dota 2 glyph: a planned lane's towers turn invulnerable for this long once one falls below half health.</summary>
        public double GlyphSeconds = 5.0;
        public double GlyphThreshold = 0.5;
        public int GlyphCooldown = 4;
        /// <summary>Legion TD 2 king: Ancient levels bought by the team's players; price per level, attack and repair per level.</summary>
        public int CoreLevelMax = 3;
        public int CoreLevelPrice = 150;
        public double[] CoreDamage = { 0.0, 45.0, 75.0, 110.0 };
        public double CoreRange = 7.5;
        public double CoreRepair = 1000.0;

        public static LuneBalance Default() { return new LuneBalance(); }

        public int CoreUpgradeCost(int level) { return CoreLevelPrice * (level + 1); }

        public int BuybackCost(int level) { return BuybackBase + BuybackPerLevel * level; }

        public int RoundIncome(int roundNumber)
        {
            return BaseIncome + GdMath.Min(IncomeGrowthCap, IncomePerRound * GdMath.Max(0, roundNumber - 1));
        }
    }
}