✨ Lotteries

2025-10-24 01:34:18 +08:00
parent 15954dbfe2
commit 7385caff9a
11 changed files with 3235 additions and 2 deletions
--- a/DysonNetwork.Pass/Lotteries/LotteryController.cs
+++ b/DysonNetwork.Pass/Lotteries/LotteryController.cs
@@ -0,0 +1,115 @@
+using System.ComponentModel.DataAnnotations;
+using DysonNetwork.Shared.Models;
+using DysonNetwork.Pass.Wallet;
+using DysonNetwork.Pass.Permission;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using NodaTime;
+
+namespace DysonNetwork.Pass.Lotteries;
+
+[ApiController]
+[Route("/api/lotteries")]
+public class LotteryController(AppDatabase db, LotteryService lotteryService) : ControllerBase
+{
+    public class CreateLotteryRequest
+    {
+        [Required]
+        public List<int> RegionOneNumbers { get; set; } = null!;
+        [Required]
+        [Range(0, 99)]
+        public int RegionTwoNumber { get; set; }
+        [Range(1, int.MaxValue)]
+        public int Multiplier { get; set; } = 1;
+    }
+
+    [HttpPost]
+    [Authorize]
+    public async Task<ActionResult<SnWalletOrder>> CreateLottery([FromBody] CreateLotteryRequest request)
+    {
+        if (HttpContext.Items["CurrentUser"] is not SnAccount currentUser) return Unauthorized();
+
+        try
+        {
+            var order = await lotteryService.CreateLotteryOrderAsync(
+                accountId: currentUser.Id,
+                region1: request.RegionOneNumbers,
+                region2: request.RegionTwoNumber,
+                multiplier: request.Multiplier);
+
+            return Ok(order);
+        }
+        catch (ArgumentException err)
+        {
+            return BadRequest(err.Message);
+        }
+    }
+
+    [HttpGet]
+    [Authorize]
+    public async Task<ActionResult<List<SnLottery>>> GetLotteries(
+        [FromQuery] int offset = 0,
+        [FromQuery] int limit = 20)
+    {
+        if (HttpContext.Items["CurrentUser"] is not SnAccount currentUser) return Unauthorized();
+
+        var lotteries = await lotteryService.GetUserTicketsAsync(currentUser.Id, offset, limit);
+        var total = await lotteryService.GetUserTicketCountAsync(currentUser.Id);
+
+        Response.Headers["X-Total"] = total.ToString();
+
+        return Ok(lotteries);
+    }
+
+    [HttpGet("{id}")]
+    [Authorize]
+    public async Task<ActionResult<SnLottery>> GetLottery(Guid id)
+    {
+        if (HttpContext.Items["CurrentUser"] is not SnAccount currentUser) return Unauthorized();
+
+        var lottery = await lotteryService.GetTicketAsync(id);
+        if (lottery == null || lottery.AccountId != currentUser.Id)
+            return NotFound();
+
+        return Ok(lottery);
+    }
+
+    [HttpPost("draw")]
+    [Authorize]
+    [RequiredPermission("maintenance", "lotteries.draw.perform")]
+    public async Task<IActionResult> PerformLotteryDraw()
+    {
+        await lotteryService.PerformDailyDrawAsync();
+        return Ok("Lottery draw performed successfully.");
+    }
+
+    [HttpGet("records")]
+    [Authorize]
+    public async Task<ActionResult<List<SnLotteryRecord>>> GetLotteryRecords(
+        [FromQuery] Instant? startDate = null,
+        [FromQuery] Instant? endDate = null,
+        [FromQuery] int offset = 0,
+        [FromQuery] int limit = 20)
+    {
+        if (HttpContext.Items["CurrentUser"] is not SnAccount currentUser) return Unauthorized();
+
+        var query = db.LotteryRecords.AsQueryable();
+
+        if (startDate.HasValue)
+            query = query.Where(r => r.DrawDate >= startDate.Value);
+        if (endDate.HasValue)
+            query = query.Where(r => r.DrawDate <= endDate.Value);
+
+        var total = await query.CountAsync();
+        Response.Headers["X-Total"] = total.ToString();
+
+        var records = await query
+            .OrderByDescending(r => r.DrawDate)
+            .Skip(offset)
+            .Take(limit)
+            .ToListAsync();
+
+        return Ok(records);
+    }
+}
--- a/DysonNetwork.Pass/Lotteries/LotteryDrawJob.cs
+++ b/DysonNetwork.Pass/Lotteries/LotteryDrawJob.cs
@@ -0,0 +1,21 @@
+using Quartz;
+
+namespace DysonNetwork.Pass.Lotteries;
+
+public class LotteryDrawJob(LotteryService lotteryService, ILogger<LotteryDrawJob> logger) : IJob
+{
+    public async Task Execute(IJobExecutionContext context)
+    {
+        logger.LogInformation("Starting daily lottery draw...");
+
+        try
+        {
+            await lotteryService.PerformDailyDrawAsync();
+            logger.LogInformation("Daily lottery draw completed successfully.");
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "Error occurred during daily lottery draw.");
+        }
+    }
+}
--- a/DysonNetwork.Pass/Lotteries/LotteryService.cs
+++ b/DysonNetwork.Pass/Lotteries/LotteryService.cs
@@ -0,0 +1,208 @@
+using DysonNetwork.Shared.Models;
+using DysonNetwork.Pass.Wallet;
+using Microsoft.EntityFrameworkCore;
+using NodaTime;
+
+namespace DysonNetwork.Pass.Lotteries;
+
+public class LotteryService(AppDatabase db, PaymentService paymentService, WalletService walletService)
+{
+    private static bool ValidateNumbers(List<int> region1, int region2)
+    {
+        if (region1.Count != 5 || region1.Distinct().Count() != 5)
+            return false;
+        if (region1.Any(n => n < 0 || n > 99))
+            return false;
+        if (region2 < 0 || region2 > 99)
+            return false;
+        return true;
+    }
+
+    public async Task<SnLottery> CreateTicketAsync(Guid accountId, List<int> region1, int region2, int multiplier = 1)
+    {
+        if (!ValidateNumbers(region1, region2))
+            throw new ArgumentException("Invalid lottery numbers");
+
+        var lottery = new SnLottery
+        {
+            AccountId = accountId,
+            RegionOneNumbers = region1,
+            RegionTwoNumber = region2,
+            Multiplier = multiplier
+        };
+
+        db.Lotteries.Add(lottery);
+        await db.SaveChangesAsync();
+
+        return lottery;
+    }
+
+    public async Task<List<SnLottery>> GetUserTicketsAsync(Guid accountId, int offset = 0, int limit = 20)
+    {
+        return await db.Lotteries
+            .Where(l => l.AccountId == accountId)
+            .OrderByDescending(l => l.CreatedAt)
+            .Skip(offset)
+            .Take(limit)
+            .ToListAsync();
+    }
+
+    public async Task<SnLottery?> GetTicketAsync(Guid id)
+    {
+        return await db.Lotteries.FirstOrDefaultAsync(l => l.Id == id);
+    }
+
+    public async Task<int> GetUserTicketCountAsync(Guid accountId)
+    {
+        return await db.Lotteries.CountAsync(l => l.AccountId == accountId);
+    }
+
+    private static decimal CalculateLotteryPrice(int multiplier)
+    {
+        return 10 + (multiplier - 1) * 10;
+    }
+
+    public async Task<SnWalletOrder> CreateLotteryOrderAsync(Guid accountId, List<int> region1, int region2, int multiplier = 1)
+    {
+        if (!ValidateNumbers(region1, region2))
+            throw new ArgumentException("Invalid lottery numbers");
+
+        var now = SystemClock.Instance.GetCurrentInstant();
+        var todayStart = new LocalDateTime(now.InUtc().Year, now.InUtc().Month, now.InUtc().Day, 0, 0).InUtc().ToInstant();
+        var hasPurchasedToday = await db.Lotteries.AnyAsync(l => l.AccountId == accountId && l.CreatedAt >= todayStart);
+        if (hasPurchasedToday)
+            throw new InvalidOperationException("You can only purchase one lottery per day.");
+
+        var price = CalculateLotteryPrice(multiplier);
+
+        return await paymentService.CreateOrderAsync(
+            null,
+            "isp",
+            price,
+            appIdentifier: "lottery",
+            productIdentifier: "lottery",
+            meta: new Dictionary<string, object>
+            {
+                ["account_id"] = accountId.ToString(),
+                ["region_one_numbers"] = region1,
+                ["region_two_number"] = region2,
+                ["multiplier"] = multiplier
+            });
+    }
+
+    public async Task HandleLotteryOrder(SnWalletOrder order)
+    {
+        if (order.Status != OrderStatus.Paid ||
+            !order.Meta.TryGetValue("account_id", out var accountIdValue) ||
+            !order.Meta.TryGetValue("region_one_numbers", out var region1Value) ||
+            !order.Meta.TryGetValue("region_two_number", out var region2Value) ||
+            !order.Meta.TryGetValue("multiplier", out var multiplierValue))
+            throw new InvalidOperationException("Invalid order.");
+
+        var accountId = Guid.Parse((string)accountIdValue!);
+        var region1Json = (System.Text.Json.JsonElement)region1Value;
+        var region1 = region1Json.EnumerateArray().Select(e => e.GetInt32()).ToList();
+        var region2 = Convert.ToInt32((string)region2Value!);
+        var multiplier = Convert.ToInt32((string)multiplierValue!);
+
+        await CreateTicketAsync(accountId, region1, region2, multiplier);
+    }
+
+    private static int CalculateReward(int region1Matches, bool region2Match)
+    {
+        var reward = region1Matches switch
+        {
+            0 => 0,
+            1 => 10,
+            2 => 20,
+            3 => 50,
+            4 => 100,
+            5 => 1000,
+            _ => 0
+        };
+        if (region2Match) reward *= 10;
+        return reward;
+    }
+
+    private static List<int> GenerateUniqueRandomNumbers(int count, int min, int max)
+    {
+        var numbers = new List<int>();
+        var random = new Random();
+        while (numbers.Count < count)
+        {
+            var num = random.Next(min, max + 1);
+            if (!numbers.Contains(num)) numbers.Add(num);
+        }
+        return numbers.OrderBy(n => n).ToList();
+    }
+
+    private int CountMatches(List<int> playerNumbers, List<int> winningNumbers)
+    {
+        return playerNumbers.Intersect(winningNumbers).Count();
+    }
+
+    public async Task PerformDailyDrawAsync()
+    {
+        var now = SystemClock.Instance.GetCurrentInstant();
+        var yesterdayStart = new LocalDateTime(now.InUtc().Year, now.InUtc().Month, now.InUtc().Day, 0, 0).InUtc().ToInstant().Minus(Duration.FromDays(1));
+        var todayStart = new LocalDateTime(now.InUtc().Year, now.InUtc().Month, now.InUtc().Day, 0, 0).InUtc().ToInstant();
+
+        // Tickets purchased yesterday that are still pending draw
+        var tickets = await db.Lotteries
+            .Where(l => l.CreatedAt >= yesterdayStart && l.CreatedAt < todayStart && l.DrawStatus == LotteryDrawStatus.Pending)
+            .ToListAsync();
+
+        if (!tickets.Any()) return;
+
+        // Generate winning numbers
+        var winningRegion1 = GenerateUniqueRandomNumbers(5, 0, 99);
+        var winningRegion2 = GenerateUniqueRandomNumbers(1, 0, 99)[0];
+
+        var drawDate = Instant.FromDateTimeUtc(DateTime.Today.AddDays(-1)); // Yesterday's date
+
+        var totalPrizesAwarded = 0;
+        long totalPrizeAmount = 0;
+
+        // Process each ticket
+        foreach (var ticket in tickets)
+        {
+            var region1Matches = CountMatches(ticket.RegionOneNumbers, winningRegion1);
+            var region2Match = ticket.RegionTwoNumber == winningRegion2;
+            var reward = CalculateReward(region1Matches, region2Match);
+
+            if (reward > 0)
+            {
+                var wallet = await walletService.GetWalletAsync(ticket.AccountId);
+                if (wallet != null)
+                {
+                    await paymentService.CreateTransactionAsync(
+                        payerWalletId: null,
+                        payeeWalletId: wallet.Id,
+                        currency: "isp",
+                        amount: reward,
+                        remarks: $"Lottery prize: {region1Matches} matches{(region2Match ? " + special" : "")}"
+                    );
+                    totalPrizesAwarded++;
+                    totalPrizeAmount += reward;
+                }
+            }
+
+            ticket.DrawStatus = LotteryDrawStatus.Drawn;
+            ticket.DrawDate = drawDate;
+        }
+
+        // Save the draw record
+        var lotteryRecord = new SnLotteryRecord
+        {
+            DrawDate = drawDate,
+            WinningRegionOneNumbers = winningRegion1,
+            WinningRegionTwoNumber = winningRegion2,
+            TotalTickets = tickets.Count,
+            TotalPrizesAwarded = totalPrizesAwarded,
+            TotalPrizeAmount = totalPrizeAmount
+        };
+
+        db.LotteryRecords.Add(lotteryRecord);
+        await db.SaveChangesAsync();
+    }
+}