From fa39400d36b0a33962789ccd78b9fff211207710 Mon Sep 17 00:00:00 2001
From: Hamid Reza Mohammadi <mohammadi.hr@gmail.com>
Date: Fri, 17 Dec 2021 21:16:53 +0330
Subject: [PATCH] #264 service method for upvoting a recitation (without
 recomputing order code)

---
 RMuseum/DbContext/RMuseumDbContext.cs         |  9 ++++
 RMuseum/RMuseum.xml                           | 48 ++++++++++++++++--
 .../Implementation/RecitationService.cs       | 50 +++++++++++++++++++
 3 files changed, 103 insertions(+), 4 deletions(-)

diff --git a/RMuseum/DbContext/RMuseumDbContext.cs b/RMuseum/DbContext/RMuseumDbContext.cs
index 23ea45b1..210a169a 100644
--- a/RMuseum/DbContext/RMuseumDbContext.cs
+++ b/RMuseum/DbContext/RMuseumDbContext.cs
@@ -163,6 +163,10 @@ namespace RMuseum.DbContext
             builder.Entity<GanjoorGeoLocation>()
               .Property(c => c.Longitude)
               .HasColumnType("decimal(12,9)");
+
+            builder.Entity<RecitationUserUpVote>()
+               .HasIndex(v => new { v.RecitationId, v.UserId })
+               .IsUnique();
         }
 
 
@@ -400,5 +404,10 @@ namespace RMuseum.DbContext
         /// </summary>
         public DbSet<RecitationErrorReport> RecitationErrorReports { get; set; }
 
+        /// <summary>
+        /// recitation user up votes
+        /// </summary>
+        public DbSet<RecitationUserUpVote> RecitationUserUpVotes { get; set; }
+
     }
 }
diff --git a/RMuseum/RMuseum.xml b/RMuseum/RMuseum.xml
index 95cacd66..2d2f42e9 100644
--- a/RMuseum/RMuseum.xml
+++ b/RMuseum/RMuseum.xml
@@ -2288,6 +2288,11 @@
             recitation error reports
             </summary>
         </member>
+        <member name="P:RMuseum.DbContext.RMuseumDbContext.RecitationUserUpVotes">
+            <summary>
+            recitation user up votes
+            </summary>
+        </member>
         <member name="T:RMuseum.Models.Accounting.DonationExpenditure">
             <summary>
             donation expenditures
@@ -3490,15 +3495,15 @@
             <summary>
             Final data is actually exported to a MySQL database which this auto increment field is its key
             </summary>
-            <remarks>
-            Caution: this could become a relation with newly added table <see cref="T:RMuseum.Models.Ganjoor.GanjoorPoem"/>
-            but if we do this we lose the ability to drop and create <see cref="T:RMuseum.Models.Ganjoor.GanjoorPoem"/> without losing narration data
-            </remarks>
         </member>
         <member name="P:RMuseum.Models.GanjoorAudio.Recitation.GanjoorPostId">
             <summary>
             Ganjoor Post Id
             </summary>
+            <remarks>
+            Caution: this could become a relation with newly added table <see cref="T:RMuseum.Models.Ganjoor.GanjoorPoem"/>
+            but if we do this we lose the ability to drop and create <see cref="T:RMuseum.Models.Ganjoor.GanjoorPoem"/> without losing narration data
+            </remarks>
         </member>
         <member name="P:RMuseum.Models.GanjoorAudio.Recitation.AudioOrder">
             <summary>
@@ -3754,6 +3759,41 @@
             Last Excecption
             </summary>
         </member>
+        <member name="T:RMuseum.Models.GanjoorAudio.RecitationUserUpVote">
+            <summary>
+            recitation user up vote (the records would be deleted manually if the owner user account gets deleted)
+            </summary>
+        </member>
+        <member name="P:RMuseum.Models.GanjoorAudio.RecitationUserUpVote.Id">
+            <summary>
+            Id
+            </summary>
+        </member>
+        <member name="P:RMuseum.Models.GanjoorAudio.RecitationUserUpVote.RecitationId">
+            <summary>
+            Recitation Id
+            </summary>
+        </member>
+        <member name="P:RMuseum.Models.GanjoorAudio.RecitationUserUpVote.Recitation">
+            <summary>
+            Recitation
+            </summary>
+        </member>
+        <member name="P:RMuseum.Models.GanjoorAudio.RecitationUserUpVote.UserId">
+            <summary>
+            User Id, defining it this way causes no cascade relation
+            </summary>
+        </member>
+        <member name="P:RMuseum.Models.GanjoorAudio.RecitationUserUpVote.User">
+            <summary>
+            User
+            </summary>
+        </member>
+        <member name="P:RMuseum.Models.GanjoorAudio.RecitationUserUpVote.DateTime">
+            <summary>
+            date time
+            </summary>
+        </member>
         <member name="T:RMuseum.Models.GanjoorAudio.UserRecitationProfile">
             <summary>
             Narration Profiles for users
diff --git a/RMuseum/Services/Implementation/RecitationService.cs b/RMuseum/Services/Implementation/RecitationService.cs
index 34113abf..58c68252 100644
--- a/RMuseum/Services/Implementation/RecitationService.cs
+++ b/RMuseum/Services/Implementation/RecitationService.cs
@@ -1869,6 +1869,56 @@ namespace RMuseum.Services.Implementationa
             }
         }
 
+        /// <summary>
+        /// up vote a recitation
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="userId"></param>
+        /// <returns></returns>
+        public async Task<RServiceResult<bool>> UpVoteRecitationAsync(int id, Guid userId)
+        {
+            try
+            {
+                var existingVote = await _context.RecitationUserUpVotes.Where(r => r.RecitationId == id && r.UserId == userId).SingleOrDefaultAsync();
+                if(existingVote != null)
+                {
+                    return new RServiceResult<bool>(false, "شما پیش‌تر به این خوانش رأی داده‌اید.");
+                }
+                var recitation = await _context.Recitations.Where(r => r.Id == id).SingleOrDefaultAsync();
+                if(recitation == null)
+                {
+                    return new RServiceResult<bool>(false, "خوانشی با این شناسه وجود ندارد.");
+                }
+                if(recitation.OwnerId == userId)
+                {
+                    return new RServiceResult<bool>(false, "شما نمی‌توانید به خوانش خودتان رأی بدهید.");
+                }
+                if(recitation.ReviewStatus != AudioReviewStatus.Approved)
+                {
+                    return new RServiceResult<bool>(false, "امکان رأی دادن به خوانش منتشر نشده وجود ندارد.");
+                }
+
+                RecitationUserUpVote vote = new RecitationUserUpVote()
+                {
+                    RecitationId = id,
+                    UserId = userId,
+                    DateTime = DateTime.Now
+                };
+
+                _context.RecitationUserUpVotes.Add(vote);
+                await _context.SaveChangesAsync();
+
+                //TODO compute new order for poem recitations here
+
+                return new RServiceResult<bool>(true);
+
+            }
+            catch (Exception exp)
+            {
+                return new RServiceResult<bool>(false, exp.ToString());
+            }
+        }
+
         /// <summary>
         /// Upload Enabled (temporary switch off/on for upload)
         /// </summary>