Moved interview templates to own table

This splits them into different entries making it possible to separately edit different ones at the same time.

Commands/AdminCommands.cs

@@ -244,19 +244,72 @@ public class AdminCommands
     }
 
     [RequireGuild]
-    [Command("getinterviewtemplates")]
+    [Command("getinterviewtemplate")]
-    [Description("Provides a copy of the interview templates which you can edit and then reupload.")]
+    [Description("Provides a copy of the interview template for a category which you can edit and then reupload.")]
-    public async Task GetInterviewTemplates(SlashCommandContext command)
+    public async Task GetInterviewTemplate(SlashCommandContext command,
+        [Parameter("category")][Description("The category to get the template for.")] DiscordChannel category)
     {
-        MemoryStream stream = new(Encoding.UTF8.GetBytes(Database.GetInterviewTemplatesJSON()));
+        if (!category?.IsCategory ?? true)
-        await command.RespondAsync(new DiscordInteractionResponseBuilder().AddFile("interview-templates.json", stream).AsEphemeral());
+        {
+            await command.RespondAsync(new DiscordEmbedBuilder
+            {
+                Color = DiscordColor.Red,
+                Description = "That channel is not a category."
+            }, true);
+            return;
+        }
+
+        if (!Database.TryGetCategory(category.Id, out Database.Category categoryData))
+        {
+            await command.RespondAsync(new DiscordEmbedBuilder
+            {
+                Color = DiscordColor.Red,
+                Description = "That category is not registered with the bot."
+            }, true);
+            return;
+        }
+
+        string interviewTemplateJSON = Database.GetInterviewTemplateJSON(category.Id);
+        if (interviewTemplateJSON == null)
+        {
+            string defaultTemplate =
+            "{\n" +
+            "  \"category-id\": \"" + category.Id + "\",\n" +
+            "  \"interview\":\n" +
+            "  {\n" +
+            "    \"message\": \"\",\n" +
+            "    \"type\": \"\",\n" +
+            "    \"color\": \"\",\n" +
+            "    \"paths\":\n" +
+            "    {\n" +
+            "      \n" +
+            "    }\n" +
+            "  }\n" +
+            "}";
+            MemoryStream stream = new(Encoding.UTF8.GetBytes(defaultTemplate));
+
+            DiscordInteractionResponseBuilder response = new DiscordInteractionResponseBuilder().AddEmbed(new DiscordEmbedBuilder
+            {
+                Color = DiscordColor.Green,
+                Description = "No interview template found for this category. A default template has been generated."
+            }).AddFile("interview-template-" + category.Id + ".json", stream).AsEphemeral();
+            await command.RespondAsync(response);
+        }
+        else
+        {
+            MemoryStream stream = new(Encoding.UTF8.GetBytes(interviewTemplateJSON));
+            await command.RespondAsync(new DiscordInteractionResponseBuilder().AddFile("interview-template-" + category.Id + ".json", stream).AsEphemeral());
+        }
     }
 
     [RequireGuild]
-    [Command("setinterviewtemplates")]
+    [Command("setinterviewtemplate")]
     [Description("Uploads an interview template file.")]
-    public async Task SetInterviewTemplates(SlashCommandContext command, [Parameter("file")] DiscordAttachment file)
+    public async Task SetInterviewTemplate(SlashCommandContext command,
+        [Parameter("file")][Description("The file containing the template.")] DiscordAttachment file)
     {
+        await command.DeferResponseAsync(true);
+
         if (!file.MediaType?.Contains("application/json") ?? false)
         {
             await command.RespondAsync(new DiscordEmbedBuilder
@@ -275,7 +328,7 @@ public class AdminCommands
             List<string> errors = [];
 
             // Convert it to an interview object to validate the template
-            Dictionary<ulong, Interviewer.ValidatedInterviewQuestion> interview = JsonConvert.DeserializeObject<Dictionary<ulong, Interviewer.ValidatedInterviewQuestion>>(json, new JsonSerializerSettings()
+            Interviews.ValidatedTemplate template = JsonConvert.DeserializeObject<Interviews.ValidatedTemplate>(json, new JsonSerializerSettings()
             {
                 //NullValueHandling = NullValueHandling.Include,
                 MissingMemberHandling = MissingMemberHandling.Error,
@@ -293,26 +346,41 @@ public class AdminCommands
                     }
 
                     Logger.Debug("Exception occured when trying to upload interview template:\n" + args.ErrorContext.Error);
-                    args.ErrorContext.Handled = true;
+                    args.ErrorContext.Handled = false;
                 }
             });
 
-            if (interview != null)
+            DiscordChannel category = await SupportChild.client.GetChannelAsync(template.categoryID);
+            if (!category.IsCategory)
             {
-                foreach (KeyValuePair<ulong, Interviewer.ValidatedInterviewQuestion> interviewRoot in interview)
+                await command.RespondAsync(new DiscordEmbedBuilder
                 {
-                    interviewRoot.Value.Validate(ref errors, out int summaryCount, out int summaryMaxLength);
+                    Color = DiscordColor.Red,
+                    Description = "The category ID in the uploaded JSON structure is not a valid category."
+                }, true);
+                return;
+            }
+
+            if (!Database.TryGetCategory(category.Id, out Database.Category _))
+            {
+                await command.RespondAsync(new DiscordEmbedBuilder
+                {
+                    Color = DiscordColor.Red,
+                    Description = "The category ID in the uploaded JSON structure is not a category registered with the bot, use /addcategory first."
+                }, true);
+                return;
+            }
+
+            template.interview.Validate(ref errors, out int summaryCount, out int summaryMaxLength);
 
             if (summaryCount > 25)
             {
-                        errors.Add("A summary cannot contain more than 25 fields, but you have " + summaryCount + " fields in one of your interview branches.");
+                errors.Add("A summary cannot contain more than 25 fields, but you have " + summaryCount + " fields in at least one of your interview branches.");
             }
 
             if (summaryMaxLength >= 6000)
             {
-                        errors.Add("A summary cannot contain more than 6000 characters, but one of your branches has the possibility of its summary reaching " + summaryMaxLength + " characters.");
+                errors.Add("A summary cannot contain more than 6000 characters, but at least one of your branches has the possibility of its summary reaching " + summaryMaxLength + " characters.");
-                    }
-                }
             }
 
             if (errors.Count != 0)
@@ -335,7 +403,32 @@ public class AdminCommands
                 return;
             }
 
-            Database.SetInterviewTemplates(JsonConvert.SerializeObject(interview, Formatting.Indented));
+            if (!Database.SetInterviewTemplate(template))
+            {
+                await command.RespondAsync(new DiscordEmbedBuilder
+                {
+                    Color = DiscordColor.Red,
+                    Description = "An error occured trying to write the new template to database."
+                }, true);
+                return;
+            }
+
+            try
+            {
+                MemoryStream memStream = new(Encoding.UTF8.GetBytes(Database.GetInterviewTemplateJSON(template.categoryID)));
+
+                // Log it if the log channel exists
+                DiscordChannel logChannel = await SupportChild.client.GetChannelAsync(Config.logChannel);
+                await logChannel.SendMessageAsync(new DiscordMessageBuilder().AddEmbed(new DiscordEmbedBuilder
+                {
+                    Color = DiscordColor.Green,
+                    Description = command.User.Mention + " uploaded a new interview template for the `" + category.Name + "` category."
+                }).AddFile("interview-template-" + template.categoryID + ".json", memStream));
+            }
+            catch (NotFoundException)
+            {
+                Logger.Error("Could not find the log channel.");
+            }
         }
         catch (Exception e)
         {
@@ -354,18 +447,5 @@ public class AdminCommands
             Description = "Uploaded interview template."
         }, true);
 
-        try
-        {
-            DiscordChannel logChannel = await SupportChild.client.GetChannelAsync(Config.logChannel);
-            await logChannel.SendMessageAsync(new DiscordEmbedBuilder
-            {
-                Color = DiscordColor.Green,
-                Description = command.Channel.Mention + " uploaded new interview templates.",
-            });
-        }
-        catch (NotFoundException)
-        {
-            Logger.Error("Could not find the log channel.");
-        }
     }
 }

Commands/NewCommand.cs

@@ -8,6 +8,7 @@ using DSharpPlus.Commands.ContextChecks;
 using DSharpPlus.Commands.Processors.SlashCommands;
 using DSharpPlus.Entities;
 using DSharpPlus.Exceptions;
+using SupportChild.Interviews;
 
 namespace SupportChild.Commands;
 

Commands/RestartInterviewCommand.cs

@@ -4,6 +4,7 @@ using DSharpPlus.Commands;
 using DSharpPlus.Commands.Processors.SlashCommands;
 using DSharpPlus.Entities;
 using DSharpPlus.Exceptions;
+using SupportChild.Interviews;
 
 namespace SupportChild.Commands;
 

Database.cs

@@ -114,6 +114,11 @@ public static class Database
             "channel_id BIGINT UNSIGNED NOT NULL PRIMARY KEY," +
             "interview JSON NOT NULL)",
             c);
+        using MySqlCommand createInterviewTemplates = new MySqlCommand(
+            "CREATE TABLE IF NOT EXISTS interview_templates(" +
+            "category_id BIGINT UNSIGNED NOT NULL PRIMARY KEY," +
+            "template JSON NOT NULL)",
+            c);
         c.Open();
         createTickets.ExecuteNonQuery();
         createBlacklisted.ExecuteNonQuery();
@@ -122,6 +127,7 @@ public static class Database
         createMessages.ExecuteNonQuery();
         createCategories.ExecuteNonQuery();
         createInterviews.ExecuteNonQuery();
+        createInterviewTemplates.ExecuteNonQuery();
     }
 
     public static bool IsOpenTicket(ulong channelID)
@@ -732,82 +738,91 @@ public static class Database
         }
     }
 
-    public static string GetInterviewTemplatesJSON()
+    public static string GetInterviewTemplateJSON(ulong categoryID)
     {
         using MySqlConnection c = GetConnection();
         c.Open();
-        using MySqlCommand selection = new MySqlCommand("SELECT * FROM interviews WHERE channel_id=0", c);
+        using MySqlCommand selection = new MySqlCommand("SELECT * FROM interview_templates WHERE category_id=@category_id", c);
+        selection.Parameters.AddWithValue("@category_id", categoryID);
         selection.Prepare();
         MySqlDataReader results = selection.ExecuteReader();
 
-        // Check if messages exist in the database
+        // Return a default template if it doesn't exist.
         if (!results.Read())
         {
-            return "{}";
+            return null;
         }
 
-        string templates = results.GetString("interview");
+        string templates = results.GetString("template");
         results.Close();
         return templates;
     }
 
-    // Still returns true if there are no templates, returns false if the templates are invalid.
+    public static bool TryGetInterviewTemplate(ulong categoryID, out Interviews.InterviewQuestion template)
-    public static bool TryGetInterviewTemplates(out Dictionary<ulong, Interviewer.InterviewQuestion> templates)
     {
         using MySqlConnection c = GetConnection();
         c.Open();
-        using MySqlCommand selection = new MySqlCommand("SELECT * FROM interviews WHERE channel_id=0", c);
+        using MySqlCommand selection = new MySqlCommand("SELECT * FROM interview_templates WHERE category_id=@category_id", c);
+        selection.Parameters.AddWithValue("@category_id", categoryID);
         selection.Prepare();
         MySqlDataReader results = selection.ExecuteReader();
 
         // Check if messages exist in the database
         if (!results.Read())
         {
-            templates = new Dictionary<ulong, Interviewer.InterviewQuestion>();
+            template = null;
-            return true;
+            return false;
         }
 
-        string templatesString = results.GetString("interview");
+        string templateString = results.GetString("template");
         results.Close();
 
         try
         {
-            templates = JsonConvert.DeserializeObject<Dictionary<ulong, Interviewer.InterviewQuestion>>(templatesString, new JsonSerializerSettings
+            template = JsonConvert.DeserializeObject<Interviews.Template>(templateString, new JsonSerializerSettings
             {
                 Error = delegate (object sender, ErrorEventArgs args)
                 {
-                    Logger.Error("Error occured when trying to read interview templates from database: " + args.ErrorContext.Error.Message);
+                    Logger.Error("Error occured when trying to read interview template '" + categoryID + "' from database: " + args.ErrorContext.Error.Message);
                     Logger.Debug("Detailed exception:", args.ErrorContext.Error);
                     args.ErrorContext.Handled = false;
                 }
-            });
+            }).interview;
             return true;
         }
         catch (Exception)
         {
-            templates = null;
+            template = null;
             return false;
         }
     }
 
-    public static bool SetInterviewTemplates(string templates)
+    public static bool SetInterviewTemplate(Interviews.ValidatedTemplate template)
     {
         try
         {
-            string query;
+            string templateString = JsonConvert.SerializeObject(template, new JsonSerializerSettings()
-            if (TryGetInterview(0, out _))
             {
-                query = "UPDATE interviews SET interview = @interview WHERE channel_id = 0";
+                NullValueHandling = NullValueHandling.Ignore,
+                MissingMemberHandling = MissingMemberHandling.Error,
+                Formatting = Formatting.Indented
+            });
+
+            string query;
+            if (TryGetInterviewTemplate(template.categoryID, out _))
+            {
+                query = "UPDATE interview_templates SET template = @template WHERE category_id=@category_id";
             }
             else
             {
-                query = "INSERT INTO interviews (channel_id,interview) VALUES (0, @interview)";
+                query = "INSERT INTO interview_templates (category_id,template) VALUES (@category_id, @template)";
             }
 
             using MySqlConnection c = GetConnection();
             c.Open();
             using MySqlCommand cmd = new MySqlCommand(query, c);
-            cmd.Parameters.AddWithValue("@interview", templates);
+            cmd.Parameters.AddWithValue("@category_id", template.categoryID);
+            cmd.Parameters.AddWithValue("@template", templateString);
             cmd.Prepare();
             return cmd.ExecuteNonQuery() > 0;
         }
@@ -817,45 +832,7 @@ public static class Database
         }
     }
 
-    public static Dictionary<ulong, Interviewer.InterviewQuestion> GetAllInterviews()
+    public static bool SaveInterview(ulong channelID, Interviews.InterviewQuestion interview)
-    {
-        using MySqlConnection c = GetConnection();
-        c.Open();
-        using MySqlCommand selection = new MySqlCommand("SELECT * FROM interviews", c);
-        selection.Prepare();
-        MySqlDataReader results = selection.ExecuteReader();
-
-        // Check if messages exist in the database
-        if (!results.Read())
-        {
-            return new Dictionary<ulong, Interviewer.InterviewQuestion>();
-        }
-
-        Dictionary<ulong, Interviewer.InterviewQuestion> questions = new();
-        do
-        {
-            try
-            {
-                // Channel ID 0 is the interview template, don't read it here.
-                if (results.GetUInt64("channel_id") != 0)
-                {
-                    questions.Add(results.GetUInt64("channel_id"), JsonConvert.DeserializeObject<Interviewer.InterviewQuestion>(results.GetString("interview")));
-                }
-            }
-            catch (Exception e)
-            {
-                Logger.Warn("Error occured when trying to read interview from database, it will not be loaded until manually fixed in the database.\nError message: " + e.Message);
-                Logger.Debug("Detailed exception:", e);
-            }
-
-        }
-        while (results.Read());
-        results.Close();
-
-        return questions;
-    }
-
-    public static bool SaveInterview(ulong channelID, Interviewer.InterviewQuestion interview)
     {
         try
         {
@@ -883,7 +860,7 @@ public static class Database
         }
     }
 
-    public static bool TryGetInterview(ulong channelID, out Interviewer.InterviewQuestion interview)
+    public static bool TryGetInterview(ulong channelID, out Interviews.InterviewQuestion interview)
     {
         using MySqlConnection c = GetConnection();
         c.Open();
@@ -898,7 +875,7 @@ public static class Database
             interview = null;
             return false;
         }
-        interview = JsonConvert.DeserializeObject<Interviewer.InterviewQuestion>(results.GetString("interview"));
+        interview = JsonConvert.DeserializeObject<Interviews.InterviewQuestion>(results.GetString("interview"));
         results.Close();
         return true;
     }

EventHandler.cs

@@ -12,6 +12,7 @@ using DSharpPlus.Entities;
 using DSharpPlus.EventArgs;
 using DSharpPlus.Exceptions;
 using SupportChild.Commands;
+using SupportChild.Interviews;
 
 namespace SupportChild;
 

Interviews/Interview.cs

@@ -0,0 +1,204 @@
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Linq;
+using DSharpPlus.Entities;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace SupportChild.Interviews;
+
+public enum QuestionType
+{
+    // Support multiselector as separate type, with only one subpath supported
+    ERROR,
+    END_WITH_SUMMARY,
+    END_WITHOUT_SUMMARY,
+    BUTTONS,
+    TEXT_SELECTOR,
+    USER_SELECTOR,
+    ROLE_SELECTOR,
+    MENTIONABLE_SELECTOR, // User or role
+    CHANNEL_SELECTOR,
+    TEXT_INPUT
+}
+
+public enum ButtonType
+{
+    PRIMARY,
+    SECONDARY,
+    SUCCESS,
+    DANGER
+}
+
+// A tree of questions representing an interview.
+// The tree is generated by the config file when a new ticket is opened or the restart interview command is used.
+// Additional components not specified in the config file are populated as the interview progresses.
+// The entire interview tree is serialized and stored in the database in order to record responses as they are made.
+public class InterviewQuestion
+{
+    // Title of the message embed.
+    [JsonProperty("title")]
+    public string title;
+
+    // Message contents sent to the user.
+    [JsonProperty("message")]
+    public string message;
+
+    // The type of question.
+    [JsonConverter(typeof(StringEnumConverter))]
+    [JsonProperty("type")]
+    public QuestionType type;
+
+    // Colour of the message embed.
+    [JsonProperty("color")]
+    public string color;
+
+    // Used as label for this question in the post-interview summary.
+    [JsonProperty("summary-field")]
+    public string summaryField;
+
+    // If this question is on a button, give it this style.
+    [JsonConverter(typeof(StringEnumConverter))]
+    [JsonProperty("button-style")]
+    public ButtonType? buttonStyle;
+
+    // If this question is on a selector, give it this placeholder.
+    [JsonProperty("selector-placeholder")]
+    public string selectorPlaceholder;
+
+    // If this question is on a selector, give it this description.
+    [JsonProperty("selector-description")]
+    public string selectorDescription;
+
+    // The maximum length of a text input.
+    [JsonProperty("max-length")]
+    public int? maxLength;
+
+    // The minimum length of a text input.
+    [JsonProperty("min-length", Required = Required.Default)]
+    public int? minLength;
+
+    // Possible questions to ask next, an error message, or the end of the interview.
+    [JsonProperty("paths")]
+    public Dictionary<string, InterviewQuestion> paths;
+
+    // ////////////////////////////////////////////////////////////////////////////
+    // The following parameters are populated by the bot, not the json template. //
+    // ////////////////////////////////////////////////////////////////////////////
+
+    // The ID of this message where the bot asked this question.
+    [JsonProperty("message-id")]
+    public ulong messageID;
+
+    // The contents of the user's answer.
+    [JsonProperty("answer")]
+    public string answer;
+
+    // The ID of the user's answer message if this is a TEXT_INPUT type.
+    [JsonProperty("answer-id")]
+    public ulong answerID;
+
+    // Any extra messages generated by the bot that should be removed when the interview ends.
+    [JsonProperty("related-message-ids")]
+    public List<ulong> relatedMessageIDs;
+
+    public bool TryGetCurrentQuestion(out InterviewQuestion question)
+    {
+        // This object has not been initialized, we have checked too deep.
+        if (messageID == 0)
+        {
+            question = null;
+            return false;
+        }
+
+        // Check children.
+        foreach (KeyValuePair<string, InterviewQuestion> path in paths)
+        {
+            // This child either is the one we are looking for or contains the one we are looking for.
+            if (path.Value.TryGetCurrentQuestion(out question))
+            {
+                return true;
+            }
+        }
+
+        // This object is the deepest object with a message ID set, meaning it is the latest asked question.
+        question = this;
+        return true;
+    }
+
+    public void GetSummary(ref OrderedDictionary summary)
+    {
+        if (messageID == 0)
+        {
+            return;
+        }
+
+        if (!string.IsNullOrWhiteSpace(summaryField))
+        {
+            summary.Add(summaryField, answer);
+        }
+
+        // This will always contain exactly one or zero children.
+        foreach (KeyValuePair<string, InterviewQuestion> path in paths)
+        {
+            path.Value.GetSummary(ref summary);
+        }
+    }
+
+    public void GetMessageIDs(ref List<ulong> messageIDs)
+    {
+        if (messageID != 0)
+        {
+            messageIDs.Add(messageID);
+        }
+
+        if (answerID != 0)
+        {
+            messageIDs.Add(answerID);
+        }
+
+        if (relatedMessageIDs != null)
+        {
+            messageIDs.AddRange(relatedMessageIDs);
+        }
+
+        // This will always contain exactly one or zero children.
+        foreach (KeyValuePair<string, InterviewQuestion> path in paths)
+        {
+            path.Value.GetMessageIDs(ref messageIDs);
+        }
+    }
+
+    public void AddRelatedMessageIDs(params ulong[] messageIDs)
+    {
+        if (relatedMessageIDs == null)
+        {
+            relatedMessageIDs = messageIDs.ToList();
+        }
+        else
+        {
+            relatedMessageIDs.AddRange(messageIDs);
+        }
+    }
+
+    public DiscordButtonStyle GetButtonStyle()
+    {
+        return buttonStyle switch
+        {
+            ButtonType.PRIMARY => DiscordButtonStyle.Primary,
+            ButtonType.SECONDARY => DiscordButtonStyle.Secondary,
+            ButtonType.SUCCESS => DiscordButtonStyle.Success,
+            ButtonType.DANGER => DiscordButtonStyle.Danger,
+            _ => DiscordButtonStyle.Secondary
+        };
+    }
+}
+
+public class Template(ulong categoryID, InterviewQuestion interview)
+{
+    [JsonProperty("category-id", Required = Required.Always)]
+    public ulong categoryID = categoryID;
+
+    [JsonProperty("interview", Required = Required.Always)]
+    public InterviewQuestion interview = interview;
+}

Interviews/Interviewer.cs

@@ -7,321 +7,11 @@ using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using DSharpPlus.Commands.Processors.SlashCommands;
 using DSharpPlus.Entities;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Converters;
 
-namespace SupportChild;
+namespace SupportChild.Interviews;
 
 public static class Interviewer
 {
-    public enum QuestionType
-    {
-        // Support multiselector as separate type, with only one subpath supported
-        ERROR,
-        END_WITH_SUMMARY,
-        END_WITHOUT_SUMMARY,
-        BUTTONS,
-        TEXT_SELECTOR,
-        USER_SELECTOR,
-        ROLE_SELECTOR,
-        MENTIONABLE_SELECTOR, // User or role
-        CHANNEL_SELECTOR,
-        TEXT_INPUT
-    }
-
-    public enum ButtonType
-    {
-        // Secondary first to make it the default
-        SECONDARY,
-        PRIMARY,
-        SUCCESS,
-        DANGER
-    }
-
-    // A tree of questions representing an interview.
-    // The tree is generated by the config file when a new ticket is opened or the restart interview command is used.
-    // Additional components not specified in the config file are populated as the interview progresses.
-    // The entire interview tree is serialized and stored in the database in order to record responses as they are made.
-    public class InterviewQuestion
-    {
-        // Title of the message embed.
-        [JsonProperty("title")]
-        public string title;
-
-        // Message contents sent to the user.
-        [JsonProperty("message")]
-        public string message;
-
-        // The type of question.
-        [JsonConverter(typeof(StringEnumConverter))]
-        [JsonProperty("type")]
-        public QuestionType type;
-
-        // Colour of the message embed.
-        [JsonProperty("color")]
-        public string color;
-
-        // Used as label for this question in the post-interview summary.
-        [JsonProperty("summary-field")]
-        public string summaryField;
-
-        // If this question is on a button, give it this style.
-        [JsonConverter(typeof(StringEnumConverter))]
-        [JsonProperty("button-style")]
-        public ButtonType buttonStyle;
-
-        // If this question is on a selector, give it this placeholder.
-        [JsonProperty("selector-placeholder")]
-        public string selectorPlaceholder;
-
-        // If this question is on a selector, give it this description.
-        [JsonProperty("selector-description")]
-        public string selectorDescription;
-
-        // The maximum length of a text input.
-        [JsonProperty("max-length")]
-        public int maxLength;
-
-        // The minimum length of a text input.
-        [JsonProperty("min-length", Required = Required.Default)]
-        public int minLength;
-
-        // Possible questions to ask next, an error message, or the end of the interview.
-        [JsonProperty("paths")]
-        public Dictionary<string, InterviewQuestion> paths;
-
-        // ////////////////////////////////////////////////////////////////////////////
-        // The following parameters are populated by the bot, not the json template. //
-        // ////////////////////////////////////////////////////////////////////////////
-
-        // The ID of this message where the bot asked this question.
-        [JsonProperty("message-id")]
-        public ulong messageID;
-
-        // The contents of the user's answer.
-        [JsonProperty("answer")]
-        public string answer;
-
-        // The ID of the user's answer message if this is a TEXT_INPUT type.
-        [JsonProperty("answer-id")]
-        public ulong answerID;
-
-        // Any extra messages generated by the bot that should be removed when the interview ends.
-        [JsonProperty("related-message-ids")]
-        public List<ulong> relatedMessageIDs;
-
-        public bool TryGetCurrentQuestion(out InterviewQuestion question)
-        {
-            // This object has not been initialized, we have checked too deep.
-            if (messageID == 0)
-            {
-                question = null;
-                return false;
-            }
-
-            // Check children.
-            foreach (KeyValuePair<string, InterviewQuestion> path in paths)
-            {
-                // This child either is the one we are looking for or contains the one we are looking for.
-                if (path.Value.TryGetCurrentQuestion(out question))
-                {
-                    return true;
-                }
-            }
-
-            // This object is the deepest object with a message ID set, meaning it is the latest asked question.
-            question = this;
-            return true;
-        }
-
-        public void GetSummary(ref OrderedDictionary summary)
-        {
-            if (messageID == 0)
-            {
-                return;
-            }
-
-            if (!string.IsNullOrWhiteSpace(summaryField))
-            {
-                summary.Add(summaryField, answer);
-            }
-
-            // This will always contain exactly one or zero children.
-            foreach (KeyValuePair<string, InterviewQuestion> path in paths)
-            {
-                path.Value.GetSummary(ref summary);
-            }
-        }
-
-        public void GetMessageIDs(ref List<ulong> messageIDs)
-        {
-            if (messageID != 0)
-            {
-                messageIDs.Add(messageID);
-            }
-
-            if (answerID != 0)
-            {
-                messageIDs.Add(answerID);
-            }
-
-            if (relatedMessageIDs != null)
-            {
-                messageIDs.AddRange(relatedMessageIDs);
-            }
-
-            // This will always contain exactly one or zero children.
-            foreach (KeyValuePair<string, InterviewQuestion> path in paths)
-            {
-                path.Value.GetMessageIDs(ref messageIDs);
-            }
-        }
-
-        public void AddRelatedMessageIDs(params ulong[] messageIDs)
-        {
-            if (relatedMessageIDs == null)
-            {
-                relatedMessageIDs = messageIDs.ToList();
-            }
-            else
-            {
-                relatedMessageIDs.AddRange(messageIDs);
-            }
-        }
-
-        public DiscordButtonStyle GetButtonStyle()
-        {
-            return buttonStyle switch
-            {
-                ButtonType.PRIMARY => DiscordButtonStyle.Primary,
-                ButtonType.SECONDARY => DiscordButtonStyle.Secondary,
-                ButtonType.SUCCESS => DiscordButtonStyle.Success,
-                ButtonType.DANGER => DiscordButtonStyle.Danger,
-                _ => DiscordButtonStyle.Primary
-            };
-        }
-    }
-
-    // This class is identical to the one above and just exists as a hack to get JSON validation when
-    // new entries are entered but not when read from database in order to be more lenient with old interviews.
-    // I might do this in a more proper way at some point.
-    public class ValidatedInterviewQuestion
-    {
-        [JsonProperty("title", Required = Required.Default)]
-        public string title;
-
-        [JsonProperty("message", Required = Required.Always)]
-        public string message;
-
-        [JsonConverter(typeof(StringEnumConverter))]
-        [JsonProperty("type", Required = Required.Always)]
-        public QuestionType type;
-
-        [JsonProperty("color", Required = Required.Always)]
-        public string color;
-
-        [JsonProperty("summary-field", Required = Required.Default)]
-        public string summaryField;
-
-        [JsonConverter(typeof(StringEnumConverter))]
-        [JsonProperty("button-style", Required = Required.Default)]
-        public ButtonType buttonStyle;
-
-        [JsonProperty("selector-placeholder", Required = Required.Default)]
-        public string selectorPlaceholder;
-
-        [JsonProperty("selector-description", Required = Required.Default)]
-        public string selectorDescription;
-
-        [JsonProperty("max-length", Required = Required.Default)]
-        public int maxLength;
-
-        [JsonProperty("min-length", Required = Required.Default)]
-        public int minLength;
-
-        [JsonProperty("paths", Required = Required.Always)]
-        public Dictionary<string, ValidatedInterviewQuestion> paths;
-
-        public void Validate(ref List<string> errors, out int summaryCount, out int summaryMaxLength)
-        {
-            if (string.IsNullOrWhiteSpace(message))
-            {
-                errors.Add("Message cannot be empty.");
-            }
-
-            if (type is QuestionType.ERROR or QuestionType.END_WITH_SUMMARY or QuestionType.END_WITHOUT_SUMMARY)
-            {
-                if (paths.Count > 0)
-                {
-                    errors.Add("'" + type + "' questions cannot have child paths.");
-                }
-            }
-            else if (paths.Count == 0)
-            {
-                errors.Add("'" + type + "' questions must have at least one child path.");
-            }
-
-            List<int> summaryCounts = new List<int>();
-            Dictionary<string, int> childMaxLengths = new Dictionary<string, int>();
-            foreach (KeyValuePair<string, ValidatedInterviewQuestion> path in paths)
-            {
-                path.Value.Validate(ref errors, out int summaries, out int maxLen);
-                summaryCounts.Add(summaries);
-                childMaxLengths.Add(path.Key, maxLen);
-            }
-
-            summaryCount = summaryCounts.Count == 0 ? 0 : summaryCounts.Max();
-
-            string childPathString = "";
-            int childMaxLength = 0;
-            if (childMaxLengths.Count != 0)
-            {
-                (childPathString, childMaxLength) = childMaxLengths.ToArray().MaxBy(x => x.Key.Length + x.Value);
-            }
-
-            summaryMaxLength = childMaxLength;
-
-            if (string.IsNullOrWhiteSpace(summaryField))
-            {
-                ++summaryCount;
-            }
-
-            // Only count summaries that end in a summary question.
-            if (type == QuestionType.END_WITH_SUMMARY)
-            {
-                summaryMaxLength = message?.Length ?? 0;
-                summaryMaxLength += title?.Length ?? 0;
-            }
-            // Only add to the total max length if the summary field is not empty. That way we know this branch ends in a summary.
-            else if (summaryMaxLength > 0 && !string.IsNullOrEmpty(summaryField))
-            {
-                summaryMaxLength += summaryField.Length;
-                switch (type)
-                {
-                    case QuestionType.BUTTONS:
-                    case QuestionType.TEXT_SELECTOR:
-                        summaryMaxLength += childPathString.Length;
-                        break;
-                    case QuestionType.USER_SELECTOR:
-                    case QuestionType.ROLE_SELECTOR:
-                    case QuestionType.MENTIONABLE_SELECTOR:
-                    case QuestionType.CHANNEL_SELECTOR:
-                        // Approximate length of a mention
-                        summaryMaxLength += 23;
-                        break;
-                    case QuestionType.TEXT_INPUT:
-                        summaryMaxLength += (maxLength == 0 ? 1024 : Math.Min(maxLength, 1024));
-                        break;
-                    case QuestionType.END_WITH_SUMMARY:
-                    case QuestionType.END_WITHOUT_SUMMARY:
-                    case QuestionType.ERROR:
-                    default:
-                        break;
-                }
-            }
-        }
-    }
-
     public static async void StartInterview(DiscordChannel channel)
     {
         if (channel.Parent == null)
@@ -329,22 +19,13 @@ public static class Interviewer
             return;
         }
 
-        if (!Database.TryGetInterviewTemplates(out Dictionary<ulong, InterviewQuestion> templates))
+        if (!Database.TryGetInterviewTemplate(channel.Parent.Id, out InterviewQuestion template))
         {
-            await channel.SendMessageAsync(new DiscordEmbedBuilder
-            {
-                Description = "Attempted to create interview from template, but an error occured when reading it from the database.\n\n" +
-                              "Tell a staff member to check the bot log and fix the template.",
-                Color = DiscordColor.Red
-            });
             return;
         }
 
-        if (templates.TryGetValue(channel.Parent.Id, out InterviewQuestion interview))
+        await CreateQuestion(channel, template);
-        {
+        Database.SaveInterview(channel.Id, template);
-            await CreateQuestion(channel, interview);
-            Database.SaveInterview(channel.Id, interview);
-        }
     }
 
     public static async Task RestartInterview(SlashCommandContext command)
@@ -474,11 +155,13 @@ public static class Interviewer
             }
 
             Logger.Error("The interview for channel " + interaction.Channel.Id + " reached a question of type " + currentQuestion.type + " which has no valid next question. Their selection was:\n" + answer);
-            await interaction.CreateFollowupMessageAsync(new DiscordFollowupMessageBuilder().AddEmbed(new DiscordEmbedBuilder
+            DiscordMessage followupMessage = await interaction.CreateFollowupMessageAsync(new DiscordFollowupMessageBuilder().AddEmbed(new DiscordEmbedBuilder
             {
                 Color = DiscordColor.Red,
                 Description = "Error: Could not determine the next question based on your answer. Check your response and ask an admin to check the bot logs if this seems incorrect."
             }).AsEphemeral());
+            currentQuestion.AddRelatedMessageIDs(followupMessage.Id);
+            Database.SaveInterview(interaction.Channel.Id, interviewRoot);
         }
         else
         {
@@ -532,7 +215,7 @@ public static class Interviewer
         }
 
         // The length requirement is less than 1024 characters, and must be less than the configurable limit if it is set.
-        int maxLength = currentQuestion.maxLength == 0 ? 1024 : Math.Min(currentQuestion.maxLength, 1024);
+        int maxLength = Math.Min(currentQuestion.maxLength ?? 1024, 1024);
 
         if (answerMessage.Content.Length > maxLength)
         {
@@ -542,10 +225,11 @@ public static class Interviewer
                 Color = DiscordColor.Red
             });
             currentQuestion.AddRelatedMessageIDs(answerMessage.Id, lengthMessage.Id);
+            Database.SaveInterview(answerMessage.Channel.Id, interviewRoot);
             return;
         }
 
-        if (answerMessage.Content.Length < currentQuestion.minLength)
+        if (answerMessage.Content.Length < (currentQuestion.minLength ?? 0))
         {
             DiscordMessage lengthMessage = await answerMessage.RespondAsync(new DiscordEmbedBuilder
             {
@@ -553,13 +237,17 @@ public static class Interviewer
                 Color = DiscordColor.Red
             });
             currentQuestion.AddRelatedMessageIDs(answerMessage.Id, lengthMessage.Id);
+            Database.SaveInterview(answerMessage.Channel.Id, interviewRoot);
             return;
         }
 
         foreach ((string questionString, InterviewQuestion nextQuestion) in currentQuestion.paths)
         {
             // Skip to the first matching path.
-            if (!Regex.IsMatch(answerMessage.Content, questionString)) continue;
+            if (!Regex.IsMatch(answerMessage.Content, questionString))
+            {
+                continue;
+            }
 
             await HandleAnswer(answerMessage.Content, nextQuestion, interviewRoot, currentQuestion, answerMessage.Channel, answerMessage);
             return;
@@ -571,7 +259,8 @@ public static class Interviewer
             Description = "Error: Could not determine the next question based on your answer. Check your response and ask an admin to check the bot logs if this seems incorrect.",
             Color = DiscordColor.Red
         });
-        currentQuestion.AddRelatedMessageIDs(errorMessage.Id);
+        currentQuestion.AddRelatedMessageIDs(answerMessage.Id, errorMessage.Id);
+        Database.SaveInterview(answerMessage.Channel.Id, interviewRoot);
     }
 
     private static async Task HandleAnswer(string answer,

Interviews/ValidatedInterview.cs

@@ -0,0 +1,137 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using SupportChild.Interviews;
+
+namespace SupportChild.Interviews;
+
+// This class is identical to the normal interview question and just exists as a hack to get JSON validation when
+// new entries are entered but not when read from database in order to be more lenient with old interviews.
+// I might do this in a more proper way at some point.
+public class ValidatedInterviewQuestion
+{
+    [JsonProperty("title", Required = Required.Default)]
+    public string title;
+
+    [JsonProperty("message", Required = Required.Always)]
+    public string message;
+
+    [JsonConverter(typeof(StringEnumConverter))]
+    [JsonProperty("type", Required = Required.Always)]
+    public QuestionType type;
+
+    [JsonProperty("color", Required = Required.Always)]
+    public string color;
+
+    [JsonProperty("summary-field", Required = Required.Default)]
+    public string summaryField;
+
+    [JsonConverter(typeof(StringEnumConverter))]
+    [JsonProperty("button-style", Required = Required.Default)]
+    public ButtonType? buttonStyle;
+
+    [JsonProperty("selector-placeholder", Required = Required.Default)]
+    public string selectorPlaceholder;
+
+    [JsonProperty("selector-description", Required = Required.Default)]
+    public string selectorDescription;
+
+    [JsonProperty("max-length", Required = Required.Default)]
+    public int? maxLength;
+
+    [JsonProperty("min-length", Required = Required.Default)]
+    public int? minLength;
+
+    [JsonProperty("paths", Required = Required.Always)]
+    public Dictionary<string, ValidatedInterviewQuestion> paths;
+
+    public void Validate(ref List<string> errors, out int summaryCount, out int summaryMaxLength)
+    {
+        if (string.IsNullOrWhiteSpace(message))
+        {
+            errors.Add("Message cannot be empty.");
+        }
+
+        if (type is QuestionType.ERROR or QuestionType.END_WITH_SUMMARY or QuestionType.END_WITHOUT_SUMMARY)
+        {
+            if (paths.Count > 0)
+            {
+                errors.Add("'" + type + "' questions cannot have child paths.");
+            }
+        }
+        else if (paths.Count == 0)
+        {
+            errors.Add("'" + type + "' questions must have at least one child path.");
+        }
+
+        List<int> summaryCounts = [];
+        Dictionary<string, int> childMaxLengths = new Dictionary<string, int>();
+        foreach (KeyValuePair<string, ValidatedInterviewQuestion> path in paths)
+        {
+            path.Value.Validate(ref errors, out int summaries, out int maxLen);
+            summaryCounts.Add(summaries);
+            childMaxLengths.Add(path.Key, maxLen);
+        }
+
+        summaryCount = summaryCounts.Count == 0 ? 0 : summaryCounts.Max();
+
+        string childPathString = "";
+        int childMaxLength = 0;
+        if (childMaxLengths.Count != 0)
+        {
+            (childPathString, childMaxLength) = childMaxLengths.ToArray().MaxBy(x => x.Key.Length + x.Value);
+        }
+
+        summaryMaxLength = childMaxLength;
+
+        if (string.IsNullOrWhiteSpace(summaryField))
+        {
+            ++summaryCount;
+        }
+
+        // Only count summaries that end in a summary question.
+        if (type == QuestionType.END_WITH_SUMMARY)
+        {
+            summaryMaxLength = message?.Length ?? 0;
+            summaryMaxLength += title?.Length ?? 0;
+        }
+        // Only add to the total max length if the summary field is not empty. That way we know this branch ends in a summary.
+        else if (summaryMaxLength > 0 && !string.IsNullOrEmpty(summaryField))
+        {
+            summaryMaxLength += summaryField.Length;
+            switch (type)
+            {
+                case QuestionType.BUTTONS:
+                case QuestionType.TEXT_SELECTOR:
+                    summaryMaxLength += childPathString.Length;
+                    break;
+                case QuestionType.USER_SELECTOR:
+                case QuestionType.ROLE_SELECTOR:
+                case QuestionType.MENTIONABLE_SELECTOR:
+                case QuestionType.CHANNEL_SELECTOR:
+                    // Approximate length of a mention
+                    summaryMaxLength += 23;
+                    break;
+                case QuestionType.TEXT_INPUT:
+                    summaryMaxLength += Math.Min(maxLength ?? 1024, 1024);
+                    break;
+                case QuestionType.END_WITH_SUMMARY:
+                case QuestionType.END_WITHOUT_SUMMARY:
+                case QuestionType.ERROR:
+                default:
+                    break;
+            }
+        }
+    }
+}
+
+public class ValidatedTemplate(ulong categoryID, ValidatedInterviewQuestion interview)
+{
+    [JsonProperty("category-id", Required = Required.Always)]
+    public ulong categoryID = categoryID;
+
+    [JsonProperty("interview", Required = Required.Always)]
+    public ValidatedInterviewQuestion interview = interview;
+}