return style name in prompt handler

crates/lib/mysql_queries/src/payloads/prompt_args/prompt_inner_payload.rs

@@ -1,3 +1,5 @@
+use errors::AnyhowResult;
+
 use crate::payloads::prompt_args::encoded_style_transfer_name::EncodedStyleTransferName;
 
 // TODO(bt,2024-04-13): Once this gets big enough, design a PromptInnerPayloadBuilder that returns None if no fields were set.
@@ -12,3 +14,13 @@ pub struct PromptInnerPayload {
   #[serde(skip_serializing_if = "Option::is_none")]
   pub style_name: Option<EncodedStyleTransferName>,
 }
+
+impl PromptInnerPayload{
+  pub fn from_json(json: &str) -> AnyhowResult<Self> {
+    Ok(serde_json::from_str(json)?)
+  }
+
+  pub fn to_json(&self) -> AnyhowResult<String> {
+    Ok(serde_json::to_string(self)?)
+  }
+}

crates/lib/mysql_queries/src/queries/prompts/get_prompt.rs

@@ -12,6 +12,8 @@ use errors::AnyhowResult;
 use tokens::tokens::prompts::PromptToken;
 use tokens::tokens::users::UserToken;
 
+use crate::payloads::prompt_args::prompt_inner_payload::PromptInnerPayload;
+
 #[derive(Serialize, Debug)]
 pub struct Prompt {
   pub token: PromptToken,
@@ -23,8 +25,7 @@ pub struct Prompt {
   pub maybe_positive_prompt: Option<String>,
   pub maybe_negative_prompt: Option<String>,
 
-  // TODO(bt,2024-02-22): Expose this as structured fields.
-  pub maybe_other_args: Option<String>,
+  pub maybe_other_args: Option<PromptInnerPayload>,
 
   /// For moderators only
   pub creator_ip_address: Option<String>,
@@ -43,7 +44,6 @@ pub struct PromptRaw {
   pub maybe_positive_prompt: Option<String>,
   pub maybe_negative_prompt: Option<String>,
 
-  // TODO(bt,2024-02-22): Expose this as structured fields.
   pub maybe_other_args: Option<String>,
 
   /// For moderators only
@@ -75,7 +75,10 @@ pub async fn get_prompt(
     maybe_creator_user_token: record.maybe_creator_user_token,
     maybe_positive_prompt: record.maybe_positive_prompt,
     maybe_negative_prompt: record.maybe_negative_prompt,
-    maybe_other_args: record.maybe_other_args,
+    maybe_other_args: record.maybe_other_args
+        .as_deref()
+        .map(|args| PromptInnerPayload::from_json(args))
+        .transpose()?,
     creator_ip_address: record.creator_ip_address,
     created_at: record.created_at,
   }))

crates/lib/mysql_queries/src/queries/prompts/insert_prompt.rs

@@ -1,6 +1,6 @@
 use std::marker::PhantomData;
-use anyhow::anyhow;
 
+use anyhow::anyhow;
 use sqlx;
 use sqlx::{Executor, MySql};
 
@@ -8,6 +8,7 @@ use enums::by_table::prompts::prompt_type::PromptType;
 use errors::AnyhowResult;
 use tokens::tokens::prompts::PromptToken;
 use tokens::tokens::users::UserToken;
+
 use crate::payloads::prompt_args::prompt_inner_payload::PromptInnerPayload;
 
 pub struct InsertPromptArgs<'e, 'c,  E>
@@ -47,7 +48,7 @@ pub async fn insert_prompt<'e, 'c : 'e, E>(args: InsertPromptArgs<'e, 'c, E>)
   let maybe_other_args = match args.maybe_other_args {
     None => None,
     Some(inner_payload) => {
-      let encoded = serde_json::ser::to_string(inner_payload)
+      let encoded = inner_payload.to_json()
           .map_err(|_e| anyhow!("could not encode inner payload"))?;
       Some(encoded)
     },

crates/service/web/storyteller_web/src/http_server/endpoints/prompts/get_prompt_handler.rs

@@ -130,12 +130,21 @@ pub async fn get_prompt_handler(
     Ok(Some(result)) => result,
   };
 
+  let mut maybe_style_name = None;
+
+  if let Some(inner_payload) = &result.maybe_other_args {
+    if let Some(encoded_style_name) = &inner_payload.style_name {
+      maybe_style_name = encoded_style_name.to_style_name();
+    }
+  }
+
   let response = GetPromptSuccessResponse {
     success: true,
     prompt: PromptInfo {
       token: result.token,
       maybe_positive_prompt: result.maybe_positive_prompt,
       maybe_negative_prompt: result.maybe_negative_prompt,
+      maybe_style_name,
       prompt_type: result.prompt_type,
       created_at: result.created_at,
     },