Rating system (NOT COMPLETE!)

```sql
CREATE TABLE [Ratings] (
  [Id] INTEGER PRIMARY KEY AUTOINCREMENT,
  [OwnerId] INTEGER NOT NULL,
  [RankId] INTEGER NOT NULL,
  [CategoryID] INTEGER NOT NULL,
  [RatedEntityID] INTEGER NULL,
  [RatedUserID] TEXT NULL,
  [Value] INTEGER NOT NULL,
  [Date] TEXT NOT NULL
);
CREATE TABLE [RatingRanks] (
  [Id] INTEGER PRIMARY KEY AUTOINCREMENT,
  [CategoryID] INTEGER NOT NULL,
  [RatedEntityID] INTEGER NULL,
  [RatedUserID] TEXT NULL,
  [Rank] INTEGER NOT NULL,
  [RatingAverage] REAL NOT NULL,
  [TotalVotes] INTEGER NOT NULL,
  [UpdateDate] TEXT NOT NULL
);
```

src/Controllers/Common/RatingController.cs

@@ -1,13 +1,24 @@
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
+using sodoff.Attributes;
+using sodoff.Configuration;
 using sodoff.Model;
 using sodoff.Schema;
+using sodoff.Services;
 using sodoff.Util;
+using System.Security.Cryptography;
 
 namespace sodoff.Controllers.Common;
 
 public class RatingController : Controller
 {
+    private readonly DBContext ctx;
+
+    public RatingController(DBContext ctx) {
+        this.ctx = ctx;
+    }
+
     [HttpPost]
     [Produces("application/xml")]
     [Route("MissionWebService.asmx/GetPayout")] // used by World Of Jumpstart
@@ -103,4 +114,177 @@ public class RatingController : Controller
         return Ok(5);
     }
 
+    // This method is the only thing that adds ratings.
+    public RatingInfo SubmitRating(Viking viking, int category, int? eID, string? uID, int value) {
+        RatingRank? rank;
+        Rating? rating = viking.Ratings.FirstOrDefault(
+            r => category == r.CategoryID && r.RatedEntityID == eID && r.RatedUserID == uID
+        );
+        bool newRating = rating == null;
+        if (newRating) {
+            rating = new Rating {
+                OwnerId = viking.Id,
+                CategoryID = category,
+                RatedEntityID = eID,
+                RatedUserID = uID
+            };
+            ctx.Ratings.Add(rating);
+            rank = ctx.RatingRanks.FirstOrDefault(rr => rr.CategoryID == category && rr.RatedEntityID == eID && rr.RatedUserID == uID);
+        } else {
+            rank = rating.Rank;
+        }
+        if (rank == null) {
+            rank = new RatingRank {
+                CategoryID = category,
+                RatedEntityID = eID,
+                RatedUserID = uID,
+                Rank = 0 // Start here, work way down.
+            };
+            ctx.RatingRanks.Add(rank);
+        }
+        rank.TotalVotes = rank.Ratings?.Count??1;
+        if (newRating) {
+            rating.Rank = rank;
+            rank.TotalVotes++;
+        }
+        if (rank.Ratings != null) {
+            rank.RatingAverage = 0;
+            foreach (Rating r in rank.Ratings) {
+                if (r == rating) continue;
+                rank.RatingAverage += (float)((decimal)r.Value / (decimal)rank.TotalVotes);
+            }
+            rank.RatingAverage += (float)((decimal)value / (decimal)rank.TotalVotes);
+        } else {
+            rank.RatingAverage = value;
+        }
+        if (eID != -1 || uID != null) {
+            RatingRank[] ranks = ctx.RatingRanks
+                .Where(rr => rr.CategoryID == category) // Only rank by category.
+                .OrderBy(rr => rr.Rank)
+                .ToArray();
+            bool resortOthers = false;
+            for (int i=0;i<ranks.Length;i++) {
+                if (ranks[i] == rank) continue;
+                if (!resortOthers && ranks[i].RatingAverage < rank.RatingAverage) {
+                    rank.Rank = i+1;
+                    resortOthers = true;
+                }
+                if (resortOthers) ranks[i].Rank++;
+                Console.WriteLine(ranks[i].Id+" "+resortOthers);
+            }
+        }
+        rating.Value = value;
+        rating.Date = DateTime.UtcNow;
+        rank.UpdateDate = rating.Date;
+        ctx.SaveChanges();
+        RatingInfo info = new() {
+            Id = rating.Id,
+            OwnerUid = viking.Uid,
+            CategoryID = category,
+            RatedEntityID = eID,
+            Value = value,
+            Date = rating.Date
+        };
+        return info;
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/SetRating")]
+    [VikingSession]
+    public IActionResult SubmitRating(Viking viking, [FromForm] int categoryID, [FromForm] int ratedEntityID, [FromForm] int ratedValue) {
+        return Ok(SubmitRating(viking, categoryID, ratedEntityID, null, ratedValue));
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/SetUserRating")]
+    [VikingSession]
+    public IActionResult SubmitUserRating(Viking viking, [FromForm] int categoryID, [FromForm] string ratedUserID, [FromForm] int ratedValue) {
+        return Ok(SubmitRating(viking, categoryID, null, ratedUserID, ratedValue));
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/GetRatingByRatedEntity")]
+    public RatingInfo[] GetAllRatings([FromForm] int categoryID, [FromForm] int ratedEntityID) {
+        return ctx.Ratings
+            .Where(r => r.CategoryID == categoryID && r.RatedEntityID == ratedEntityID && r.RatedUserID == null)
+            .Select(r => new RatingInfo {
+                    Id = r.Id,
+                    OwnerUid = r.Owner.Uid,
+                    CategoryID = r.CategoryID,
+                    RatedEntityID = r.RatedEntityID,
+                    Value = r.Value,
+                    Date = r.Date
+                }
+            ).ToArray();
+    }
+
+    [HttpPost]
+    [Route("RatingWebService.asmx/DeleteEntityRating")]
+    [VikingSession]
+    public IActionResult DeleteRating(Viking viking, [FromForm] int categoryID, [FromForm] int ratedEntityID) {
+        Rating? rating = viking.Ratings.FirstOrDefault(
+            r => categoryID == r.CategoryID && r.RatedEntityID == ratedEntityID && r.RatedUserID == null
+        );
+        if (rating != null) ctx.Ratings.Remove(rating);
+        return Ok();
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/GetTopRatedByCategoryID")]
+    public RatingRankInfo[] GetRanks([FromForm] int categoryID, [FromForm] int numberOfRecord) {
+        return ctx.RatingRanks
+            .Where(rr => categoryID == rr.CategoryID && rr.RatedUserID == null)
+            .Take(numberOfRecord)
+            .Select(rr => new RatingRankInfo(rr))
+            .ToArray();
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/GetTopRatedUserByCategoryID")]
+    public IActionResult GetUserRanks([FromForm] int categoryID, [FromForm] int numberOfRecord) {
+        return Ok(new ArrayOfUserRatingRankInfo {
+            UserRatingRankInfo = ctx.RatingRanks
+                .Where(rr => rr.RatedUserID != null && (categoryID == rr.CategoryID
+                    || (categoryID == 4 && rr.CategoryID == 5) // The party board searches for 4 but the pod rating is set by 5.
+                ))
+                .Take(numberOfRecord)
+                .Select(rr => new UserRatingRankInfo { RankInfo = new RatingRankInfo(rr) })
+                .ToArray()
+        });
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/GetEntityRatedRank")]
+    public IActionResult GetRank([FromForm] int categoryID, [FromForm] int ratedEntityID) {
+        // TODO: Add a shortcut here for shipwreck lagoon tracks.
+        RatingRank? rank = ctx.RatingRanks.FirstOrDefault(rr => categoryID == rr.CategoryID && rr.RatedEntityID == ratedEntityID);
+        if (rank == null) return Ok();
+        return Ok(new RatingRankInfo(rank));
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/GetRatingForRatedUser")]
+    public IActionResult GetUserRating([FromForm] int categoryID, [FromForm] string ratedUserID) {
+        Rating? rating = ctx.Ratings.FirstOrDefault(
+            r => categoryID == r.CategoryID && r.RatedEntityID == null && r.RatedUserID == ratedUserID
+        );
+        return Ok(rating?.Value ?? 0);
+    }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("RatingWebService.asmx/GetRatingForRatedEntity")]
+    public IActionResult GetRating([FromForm] int categoryID, [FromForm] int ratedEntityID) {
+        Rating? rating = ctx.Ratings.FirstOrDefault(
+            r => categoryID == r.CategoryID && r.RatedEntityID == ratedEntityID && r.RatedUserID == null
+        );
+        return Ok(rating?.Value ?? 0);
+    }
 }

src/Model/DBContext.cs

@@ -26,6 +26,8 @@ public class DBContext : DbContext {
     public DbSet<Neighborhood> Neighborhoods { get; set; } = null!;
     // we had a brief debate on whether it's neighborhoods or neighborheed
     public DbSet<Group> Groups { get; set; } = null!;
+    public DbSet<Rating> Ratings { get; set; } = null!;
+    public DbSet<RatingRank> RatingRanks { get; set; } = null!;
 
     private readonly IOptions<ApiServerConfig> config;
 
@@ -140,6 +142,9 @@ public class DBContext : DbContext {
         builder.Entity<Viking>().HasMany(v => v.Groups)
             .WithMany(e => e.Vikings);
 
+        builder.Entity<Viking>().HasMany(v => v.Ratings)
+            .WithOne(r => r.Owner);
+
         // Dragons
         builder.Entity<Dragon>().HasOne(d => d.Viking)
             .WithMany(e => e.Dragons)
@@ -260,5 +265,17 @@ public class DBContext : DbContext {
         // Groups
         builder.Entity<Group>().HasMany(r => r.Vikings)
             .WithMany(e => e.Groups);
+
+        // Rating
+        builder.Entity<Rating>().HasOne(r => r.Owner)
+            .WithMany(v => v.Ratings)
+            .HasForeignKey(r => r.OwnerId);
+
+        builder.Entity<Rating>().HasOne(r => r.Rank)
+            .WithMany(rr => rr.Ratings)
+            .HasForeignKey(r => r.RankId);
+
+        builder.Entity<RatingRank>().HasMany(rr => rr.Ratings)
+            .WithOne(r => r.Rank);
     }
 }

src/Model/Rating.cs

@@ -0,0 +1,28 @@
+using sodoff.Schema;
+using System.ComponentModel.DataAnnotations;
+
+namespace sodoff.Model;
+
+public class Rating {
+    [Key]
+    public int Id { get; set; }
+
+    /// <summary>Viking that controls this data.</summary>
+    public virtual Viking? Owner { get; set; }
+
+    public virtual RatingRank? Rank { get; set; }
+
+    /// <summary>VikingId</summary>
+    public int OwnerId { get; set; }
+
+    public int RankId { get; set; } // Done this to prevent it from generating an unnecessary pairs table.
+
+    public int CategoryID { get; set; }
+
+    public int? RatedEntityID { get; set; }
+    public string? RatedUserID { get; set; }
+
+    public int Value { get; set; }
+
+    public DateTime Date { get; set; }
+}

src/Model/RatingRank.cs

@@ -0,0 +1,25 @@
+using System.ComponentModel.DataAnnotations;
+using System.Xml.Serialization;
+
+namespace sodoff.Model;
+
+public class RatingRank {
+    [Key]
+    public int Id { get; set; }
+
+    public int CategoryID { get; set; }
+
+    public int? RatedEntityID { get; set; }
+    public string? RatedUserID { get; set; }
+
+    public int Rank { get; set; }
+
+    /// <summary>On a scale of 1-5</summary>
+    public float RatingAverage { get; set; }
+
+    public int TotalVotes { get; set; }
+
+    public DateTime UpdateDate { get; set; }
+
+    public virtual ICollection<Rating> Ratings { get; set; } = null!;
+}

src/Model/Viking.cs

@@ -39,6 +39,7 @@ public class Viking {
     public virtual ICollection<MMORole> MMORoles { get; set; } = null!;
     public virtual Neighborhood? Neighborhood { get; set; } = null!;
     public virtual ICollection<Group> Groups { get; set; } = null!;
+    public virtual ICollection<Rating> Ratings { get; set; } = null!;
     public virtual Dragon? SelectedDragon { get; set; }
 
     public DateTime? CreationDate { get; set; }

src/Schema/ArrayOfUserRatingRankInfo.cs

@@ -0,0 +1,10 @@
+using System.Xml.Serialization;
+
+namespace sodoff.Schema;
+
+[XmlRoot(ElementName = "ArrayOfUserRatingRankInfo", Namespace = "")]
+[Serializable]
+public class ArrayOfUserRatingRankInfo {
+    [XmlElement(ElementName = "UserRatingRankInfo")]
+    public UserRatingRankInfo[] UserRatingRankInfo;
+}

src/Schema/RatingInfo.cs

@@ -0,0 +1,26 @@
+using sodoff.Model;
+using System.Xml.Serialization;
+
+namespace sodoff.Schema;
+
+[XmlRoot(ElementName = "RatingInfo", Namespace = "")]
+[Serializable]
+public class RatingInfo {
+    [XmlElement(ElementName = "ID")]
+    public int Id;
+
+    [XmlElement(ElementName = "UID")]
+    public Guid OwnerUid;
+
+    [XmlElement(ElementName = "CID")]
+    public int CategoryID;
+
+    [XmlElement(ElementName = "EID")]
+    public int? RatedEntityID;
+
+    [XmlElement(ElementName = "RV")]
+    public int Value;
+
+    [XmlElement(ElementName = "RD")]
+    public DateTime Date;
+}

src/Schema/RatingRankInfo.cs

@@ -0,0 +1,41 @@
+using sodoff.Model;
+using System.Xml.Serialization;
+
+namespace sodoff.Schema;
+
+[XmlRoot(ElementName = "RatingRankInfo", Namespace = "")]
+[Serializable]
+public class RatingRankInfo {
+
+    public RatingRankInfo() {}
+    public RatingRankInfo(RatingRank rank) {
+        Id = rank.Id;
+        CategoryID = rank.CategoryID;
+        RatedEntityID = rank.RatedEntityID;
+        Rank = rank.Rank;
+        RatingAverage = rank.RatingAverage;
+        TotalVotes = rank.TotalVotes;
+        UpdateDate = rank.UpdateDate;
+    }
+
+    [XmlElement(ElementName = "ID")]
+    public int Id;
+
+    [XmlElement(ElementName = "CID")]
+    public int CategoryID;
+
+    [XmlElement(ElementName = "EID")]
+    public int? RatedEntityID;
+
+    [XmlElement(ElementName = "R")]
+    public int Rank;
+
+    [XmlElement(ElementName = "RA")]
+    public float RatingAverage;
+
+    [XmlElement(ElementName = "TV")]
+    public int TotalVotes;
+
+    [XmlElement(ElementName = "UD")]
+    public DateTime UpdateDate;
+}

src/Schema/UserRatingRankInfo.cs

@@ -0,0 +1,14 @@
+using sodoff.Model;
+using System.Xml.Serialization;
+
+namespace sodoff.Schema;
+
+[XmlRoot(ElementName = "URRI", Namespace = "")]
+[Serializable]
+public class UserRatingRankInfo {
+    [XmlElement(ElementName = "RI")]
+    public RatingRankInfo RankInfo;
+
+    [XmlElement(ElementName = "RUID")]
+    public Guid RatedUserID;
+}