Server persistence: EF Core profiles + coin ledger + authoritative rewards
- EF Core (SQLite dev / Postgres prod via config); ProfileRow JSON blob + LedgerRow audit; EnsureCreated at startup - C# Gamification port (ranks/elo/coins/xp/achievements/titles) → server computes match rewards; ProfileService (get/update/plan/buyCoins/applyMatch) - JWT endpoints: profile GET/PUT, plan, coins packs/buy, match/result; auth upserts the profile - Tested end-to-end (buy + ranked win+kot persisted & server-computed) - Client still mock-backed for now (wiring is the next step) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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soroush.asadi
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namespace Hokm.Server.Profiles;
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/// <summary>Server-side port of src/lib/online/gamification.ts.</summary>
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public static class Gamification
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{
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private static readonly (string id, int floor)[] Tiers =
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{ ("bronze", 0), ("silver", 1100), ("gold", 1300), ("platinum", 1500), ("diamond", 1700), ("master", 1900) };
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private static int RankValue(int rating)
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{
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int idx = 0;
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for (int i = 0; i < Tiers.Length; i++) if (rating >= Tiers[i].floor) idx = i;
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if (idx == Tiers.Length - 1) return idx * 10;
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double floor = Tiers[idx].floor, next = Tiers[idx + 1].floor, third = (next - floor) / 3.0;
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double within = rating - floor;
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int division = within < third ? 3 : within < 2 * third ? 2 : 1;
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return idx * 10 - division;
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}
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private const int K = 32;
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public static int RatingDelta(MatchSummaryDto s, int my, int opp)
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{
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if (!s.Ranked) return 0;
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double expected = 1.0 / (1.0 + Math.Pow(10, (opp - my) / 400.0));
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double delta = K * ((s.Won ? 1 : 0) - expected);
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if (s.Won && s.KotFor) delta += 8;
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if (!s.Won && s.KotAgainst) delta -= 8;
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int r = (int)Math.Round(delta);
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return s.Won ? Math.Max(1, r) : Math.Min(-1, r);
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}
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public static int CoinDelta(MatchSummaryDto s)
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{
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if (!s.Ranked) return 0;
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int kot = s.Won && s.KotFor ? 40 : 0;
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return (s.Won ? s.Stake : -s.Stake) + kot;
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}
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public static int XpForLevel(int level) => 100 * level;
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public static int MatchXp(MatchSummaryDto s) =>
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40 + (s.Won ? 80 : 0) + s.TricksWon * 5 + (s.KotFor ? 30 : 0);
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private record AchDef(string Id, string NameFa, string NameEn, string Icon, int Goal, int Coin);
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private static readonly AchDef[] Achs =
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{
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new("first_win", "اولین برد", "First Win", "🥇", 1, 100),
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new("first_kot", "اولین کُت", "First Kot", "🔥", 1, 150),
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new("wins_10", "۱۰ برد", "10 Wins", "🎯", 10, 300),
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new("wins_100", "۱۰۰ برد", "100 Wins", "👑", 100, 2000),
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new("streak_5", "نوار ۵ برد", "5 Win Streak", "⚡", 5, 400),
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new("reach_gold", "رسیدن به طلا", "Reach Gold", "🏅", 1, 500),
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new("games_50", "۵۰ بازی", "50 Games", "🎮", 50, 350),
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};
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private static int AchProgress(string id, StatsDto st, int rating) => id switch
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{
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"first_win" => Math.Min(1, st.Wins),
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"first_kot" => Math.Min(1, st.KotsFor),
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"wins_10" => Math.Min(10, st.Wins),
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"wins_100" => Math.Min(100, st.Wins),
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"streak_5" => Math.Min(5, st.BestWinStreak),
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"reach_gold" => rating >= 1300 ? 1 : 0,
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"games_50" => Math.Min(50, st.Games),
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_ => 0,
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};
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private record TitleDef(string Id, string NameFa, string NameEn);
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private static readonly TitleDef[] Titles =
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{
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new("novice", "تازهکار", "Novice"), new("winner", "برنده", "Winner"),
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new("kot_master", "استاد کُت", "Kot Master"), new("veteran", "کهنهکار", "Veteran"),
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new("champion", "قهرمان", "Champion"), new("legend", "اسطوره", "Legend"),
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};
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private static bool TitleUnlocked(string id, StatsDto st, int rating, int level) => id switch
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{
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"novice" => true,
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"winner" => st.Wins >= 10,
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"kot_master" => st.KotsFor >= 10,
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"veteran" => level >= 20,
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"champion" => rating >= 1300,
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"legend" => rating >= 1900,
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_ => false,
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};
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private static (int level, int xp, bool up) AddXp(int level, int xp, int gain)
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{
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bool up = false;
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xp += gain;
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while (xp >= XpForLevel(level)) { xp -= XpForLevel(level); level++; up = true; }
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return (level, xp, up);
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}
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/// <summary>Applies a finished match to the profile (mutates it) and returns the reward breakdown.</summary>
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public static RewardResultDto ApplyMatch(ProfileDto p, MatchSummaryDto s, int oppRating)
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{
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int ratingBefore = p.Rating, coinsBefore = p.Coins, levelBefore = p.Level;
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int rDelta = RatingDelta(s, p.Rating, oppRating);
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int ratingAfter = Math.Max(0, ratingBefore + rDelta);
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int cDelta = CoinDelta(s);
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var lvl = AddXp(p.Level, p.Xp, MatchXp(s));
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var st = p.Stats;
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int cur = s.Won ? st.CurrentWinStreak + 1 : 0;
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st.Games += 1;
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st.Wins += s.Won ? 1 : 0;
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st.Losses += s.Won ? 0 : 1;
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st.KotsFor += s.KotFor ? 1 : 0;
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st.KotsAgainst += s.KotAgainst ? 1 : 0;
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st.Tricks += s.TricksWon;
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st.CurrentWinStreak = cur;
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st.BestWinStreak = Math.Max(st.BestWinStreak, cur);
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var newAch = new List<AchievementUnlockDto>();
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int achCoins = 0;
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foreach (var d in Achs)
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{
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int prog = AchProgress(d.Id, st, ratingAfter);
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p.Achievements[d.Id] = prog;
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if (prog >= d.Goal && !p.Unlocked.Contains(d.Id))
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{
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p.Unlocked.Add(d.Id);
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achCoins += d.Coin;
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newAch.Add(new() { Id = d.Id, NameFa = d.NameFa, NameEn = d.NameEn, Icon = d.Icon, CoinReward = d.Coin });
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}
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}
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int coinsAfter = Math.Max(0, coinsBefore + cDelta + achCoins);
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var newTitles = new List<TitleUnlockDto>();
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foreach (var td in Titles)
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if (TitleUnlocked(td.Id, st, ratingAfter, lvl.level) && !p.OwnedTitles.Contains(td.Id))
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{
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p.OwnedTitles.Add(td.Id);
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newTitles.Add(new() { Id = td.Id, NameFa = td.NameFa, NameEn = td.NameEn });
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}
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bool promoted = RankValue(ratingAfter) > RankValue(ratingBefore);
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bool demoted = RankValue(ratingAfter) < RankValue(ratingBefore);
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p.Rating = ratingAfter;
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p.Coins = coinsAfter;
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p.Level = lvl.level;
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p.Xp = lvl.xp;
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return new RewardResultDto
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{
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RatingBefore = ratingBefore,
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RatingAfter = ratingAfter,
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RatingDelta = ratingAfter - ratingBefore,
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CoinsBefore = coinsBefore,
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CoinsAfter = coinsAfter,
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CoinsDelta = coinsAfter - coinsBefore,
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XpGained = MatchXp(s),
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LevelBefore = levelBefore,
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LevelAfter = lvl.level,
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LeveledUp = lvl.level > levelBefore,
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NewAchievements = newAch,
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NewTitles = newTitles,
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Promoted = promoted,
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Demoted = demoted,
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};
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}
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}
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