Implement Rust-based emote database and REST API

Co-authored-by: Ganonmaster <168445+Ganonmaster@users.noreply.github.com>

src/routes/emotes.rs

@@ -0,0 +1,240 @@
+use axum::{
+    extract::{Multipart, Path, State},
+    http::StatusCode,
+    response::{IntoResponse, Json},
+};
+use serde_json::json;
+
+use crate::{
+    models::{EmoteResponse, UpdateEmoteRequest},
+    AppState,
+};
+
+/// GET /
+/// Returns a simple health-check message.
+pub async fn root() -> impl IntoResponse {
+    Json(json!({"status": "ok", "message": "mikebase server is running"}))
+}
+
+/// GET /json
+/// Returns all emotes formatted as {"emotes": [...]}.
+pub async fn list_emotes(State(state): State<AppState>) -> impl IntoResponse {
+    match state.db.list_emotes().await {
+        Ok(rows) => {
+            let emotes: Vec<EmoteResponse> = rows
+                .into_iter()
+                .map(|row| EmoteResponse {
+                    name: row.name.clone(),
+                    url: state.storage.public_url(&row.image_key),
+                    created: row.created_dt(),
+                    modified: row.modified_dt(),
+                })
+                .collect();
+            (StatusCode::OK, Json(json!({"emotes": emotes}))).into_response()
+        }
+        Err(e) => {
+            tracing::error!("Failed to list emotes: {e}");
+            (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(json!({"error": "Failed to list emotes"})),
+            )
+                .into_response()
+        }
+    }
+}
+
+/// POST /emotes
+/// Create a new emote. Accepts multipart/form-data with:
+///   - `name`      (text)
+///   - `alias`     (text, optional)
+///   - `file`      (binary – the emote image)
+pub async fn create_emote(
+    State(state): State<AppState>,
+    mut multipart: Multipart,
+) -> impl IntoResponse {
+    let mut name: Option<String> = None;
+    let mut alias: Option<String> = None;
+    let mut file_bytes: Option<bytes::Bytes> = None;
+    let mut file_name: Option<String> = None;
+    let mut content_type: Option<String> = None;
+
+    while let Ok(Some(field)) = multipart.next_field().await {
+        match field.name() {
+            Some("name") => {
+                name = field.text().await.ok();
+            }
+            Some("alias") => {
+                alias = field.text().await.ok();
+            }
+            Some("file") => {
+                file_name = field.file_name().map(|s| s.to_string());
+                content_type = field.content_type().map(|s| s.to_string());
+                file_bytes = field.bytes().await.ok();
+            }
+            _ => {}
+        }
+    }
+
+    let name = match name {
+        Some(n) if !n.is_empty() => n,
+        _ => {
+            return (
+                StatusCode::BAD_REQUEST,
+                Json(json!({"error": "Missing required field: name"})),
+            )
+                .into_response();
+        }
+    };
+
+    let (bytes, fname) = match (file_bytes, file_name) {
+        (Some(b), Some(n)) => (b, n),
+        _ => {
+            return (
+                StatusCode::BAD_REQUEST,
+                Json(json!({"error": "Missing required field: file"})),
+            )
+                .into_response();
+        }
+    };
+
+    let ct = content_type
+        .unwrap_or_else(|| mime_guess::from_path(&fname).first_or_octet_stream().to_string());
+
+    let key = format!("emoji/{fname}");
+
+    match state.storage.upload(&key, bytes, &ct).await {
+        Ok(_) => {}
+        Err(e) => {
+            tracing::error!("S3 upload failed: {e}");
+            return (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(json!({"error": "Failed to upload image"})),
+            )
+                .into_response();
+        }
+    }
+
+    match state
+        .db
+        .create_emote(&name, alias.as_deref(), &key)
+        .await
+    {
+        Ok(row) => {
+            let url = state.storage.public_url(&row.image_key);
+            let created = row.created_dt();
+            let modified = row.modified_dt();
+            let resp = EmoteResponse {
+                name: row.name,
+                url,
+                created,
+                modified,
+            };
+            (StatusCode::CREATED, Json(json!(resp))).into_response()
+        }
+        Err(e) => {
+            tracing::error!("DB insert failed: {e}");
+            (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(json!({"error": "Failed to create emote"})),
+            )
+                .into_response()
+        }
+    }
+}
+
+/// PUT /emotes/:uuid
+/// Update an existing emote's metadata.
+/// Accepts JSON body with optional fields: `name`, `alias`, `image_key`.
+pub async fn update_emote(
+    State(state): State<AppState>,
+    Path(uuid): Path<String>,
+    Json(payload): Json<UpdateEmoteRequest>,
+) -> impl IntoResponse {
+    let alias_update: Option<Option<&str>> = payload.alias.as_ref().map(|a| Some(a.as_str()));
+
+    match state
+        .db
+        .update_emote(
+            &uuid,
+            payload.name.as_deref(),
+            alias_update,
+            payload.image_key.as_deref(),
+        )
+        .await
+    {
+        Ok(Some(row)) => {
+            let url = state.storage.public_url(&row.image_key);
+            let created = row.created_dt();
+            let modified = row.modified_dt();
+            let resp = EmoteResponse {
+                name: row.name,
+                url,
+                created,
+                modified,
+            };
+            (StatusCode::OK, Json(json!(resp))).into_response()
+        }
+        Ok(None) => (
+            StatusCode::NOT_FOUND,
+            Json(json!({"error": "Emote not found"})),
+        )
+            .into_response(),
+        Err(e) => {
+            tracing::error!("DB update failed: {e}");
+            (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(json!({"error": "Failed to update emote"})),
+            )
+                .into_response()
+        }
+    }
+}
+
+/// DELETE /emotes/:uuid
+/// Delete an emote and its associated image from S3.
+pub async fn delete_emote(
+    State(state): State<AppState>,
+    Path(uuid): Path<String>,
+) -> impl IntoResponse {
+    // Fetch the row first so we can clean up S3.
+    let row = match state.db.get_emote_by_id(&uuid).await {
+        Ok(Some(r)) => r,
+        Ok(None) => {
+            return (
+                StatusCode::NOT_FOUND,
+                Json(json!({"error": "Emote not found"})),
+            )
+                .into_response();
+        }
+        Err(e) => {
+            tracing::error!("DB fetch failed: {e}");
+            return (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(json!({"error": "Failed to fetch emote"})),
+            )
+                .into_response();
+        }
+    };
+
+    // Delete from S3 (best-effort – don't abort if this fails).
+    if let Err(e) = state.storage.delete(&row.image_key).await {
+        tracing::warn!("S3 delete failed for key {}: {e}", row.image_key);
+    }
+
+    match state.db.delete_emote(&uuid).await {
+        Ok(true) => (StatusCode::NO_CONTENT).into_response(),
+        Ok(false) => (
+            StatusCode::NOT_FOUND,
+            Json(json!({"error": "Emote not found"})),
+        )
+            .into_response(),
+        Err(e) => {
+            tracing::error!("DB delete failed: {e}");
+            (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(json!({"error": "Failed to delete emote"})),
+            )
+                .into_response()
+        }
+    }
+}