From f71975e5a89b031248d848aa553e4810178e7279 Mon Sep 17 00:00:00 2001
From: "Jakob L. Kreuze" <zerodaysfordays@sdf.org>
Date: Sat, 6 Jun 2020 19:11:26 -0400
Subject: Implement tag updates.

---
 README.md           |  3 +++
 src/birka-web.rs    | 22 +++++++++++++++++++++-
 templates/image.hbs |  5 +++++
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 2cf8a74..069f8d9 100644
--- a/README.md
+++ b/README.md
@@ -108,6 +108,9 @@ GET /api/posts/[id]
 ImageResult
 ```
 
+To add tags to an image, POST a comma-separated list of new tags to the same
+endpoint.
+
 To upload an image to the database, post a multipart/form-data encoded message
 to the following endpoint with the following fields: `tags`, a comma-separated
 list of tags for the files, and `image`, the file to be uploaded.
diff --git a/src/birka-web.rs b/src/birka-web.rs
index 22ace80..c145625 100644
--- a/src/birka-web.rs
+++ b/src/birka-web.rs
@@ -37,6 +37,7 @@ use multipart::{MultipartFormData, MultipartFormDataField, MultipartFormDataOpti
 use rand::distributions::Alphanumeric;
 use rand::{thread_rng, Rng};
 use rocket::http::ContentType;
+use rocket::request::Form;
 use rocket::{Data, State};
 use rocket_contrib::json::Json;
 use rocket_contrib::serve::StaticFiles;
@@ -145,6 +146,23 @@ fn get_post(conn: SiteState, id: i64) -> Json<ImageResult> {
     })
 }
 
+#[derive(FromForm)]
+struct UpdateTags {
+    tags: String,
+}
+
+#[post("/posts/<id>", data = "<form>")]
+fn update_post(conn: SiteState, id: i64, form: Form<UpdateTags>) -> Json<String> {
+    let tb = &conn.inner().lock().unwrap().tb;
+
+    for tag in form.tags.split(",") {
+        tb.add_tag(tag).unwrap();
+        tb.tag_image(id, tag).unwrap();
+    }
+
+    Json(String::from("Updated!"))
+}
+
 #[post("/posts", data = "<data>")]
 fn put_post(conn: SiteState, content_type: &ContentType, data: Data) -> Json<String> {
     let conn = conn.inner().lock().unwrap();
@@ -246,6 +264,7 @@ fn display_posts(conn: SiteState, tags: String, last: Option<i64>) -> Template {
 fn display_post(conn: SiteState, id: i64) -> Template {
     #[derive(Serialize)]
     struct Context {
+        id: i64,
         tags: Vec<String>,
         filename: String,
         orig_filename: String,
@@ -257,6 +276,7 @@ fn display_post(conn: SiteState, id: i64) -> Template {
     Template::render(
         "image",
         Context {
+            id,
             tags: tb.tags_for_image(image.id).unwrap(),
             filename: image_store_filename(image.id, &image.filename),
             orig_filename: image.filename,
@@ -296,7 +316,7 @@ fn main() {
         .mount("/public", StaticFiles::from("./static/"))
         .mount("/image", StaticFiles::from(&conn.image_dir))
         .mount("/", routes![index, upload, display_posts, display_post])
-        .mount("/api", routes![get_posts, get_post, put_post])
+        .mount("/api", routes![get_posts, get_post, put_post, update_post])
         .attach(Template::fairing())
         .manage(Mutex::new(conn))
         .launch();
diff --git a/templates/image.hbs b/templates/image.hbs
index 8c3ceb6..fab65d5 100644
--- a/templates/image.hbs
+++ b/templates/image.hbs
@@ -29,6 +29,11 @@
         <li><a href="/posts?tags={{ . }}">{{ . }}</a></li>
         {{/each}}
       </ul>
+
+      <form id="update-prompt" method="POST" action="/api/posts/{{id}}">
+        <input id="tags" name="tags" type="text">
+        <button id="search-box-submit" type="submit">Add Tags</button>
+      </form>
     </section>
   </aside>
 </body>
-- 
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