From a5489495f4143ba3b31be26bd218f5f854d91b27 Mon Sep 17 00:00:00 2001
From: chodak166 <chodak166@op.pl>
Date: Fri, 16 Jan 2026 20:42:20 +0100
Subject: [PATCH] WIP: basic API

---
 apps/app_api/src/api.rs          |   2 +
 apps/app_api/src/api/major_pl.rs | 119 +++++++++++++++++++++++++++++++
 apps/app_api/src/container.rs    |  15 ++++
 3 files changed, 136 insertions(+)
 create mode 100644 apps/app_api/src/api/major_pl.rs

diff --git a/apps/app_api/src/api.rs b/apps/app_api/src/api.rs
index dbca53b..97c8167 100644
--- a/apps/app_api/src/api.rs
+++ b/apps/app_api/src/api.rs
@@ -4,9 +4,11 @@ use std::sync::Arc;
 
 pub mod dictionary;
 pub mod health;
+pub mod major_pl;
 
 pub fn routes() -> Router<Arc<AppState>> {
     Router::new()
         .nest("/api", health::routes())
         .nest("/api", dictionary::routes())
+        .nest("/api", major_pl::routes())
 }
diff --git a/apps/app_api/src/api/major_pl.rs b/apps/app_api/src/api/major_pl.rs
new file mode 100644
index 0000000..c4caad0
--- /dev/null
+++ b/apps/app_api/src/api/major_pl.rs
@@ -0,0 +1,119 @@
+use axum::{
+    Json, Router,
+    extract::{Path, Query, State},
+    http::StatusCode,
+    response::IntoResponse,
+    routing::get,
+};
+use serde::{Deserialize, Serialize};
+use std::sync::Arc;
+
+use crate::state::AppState;
+
+#[derive(Debug, Deserialize)]
+pub struct EncodeQuery {
+    pub dict: Option<String>,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct DecodeQuery {
+    pub dict: Option<String>,
+}
+
+#[derive(Debug, Serialize)]
+pub struct EncodeResponse {
+    pub input: String,
+    pub dict: String,
+    pub result: Vec<Vec<EncodePart>>,
+}
+
+#[derive(Debug, Serialize)]
+pub struct EncodePart {
+    pub value: u64,
+    pub words: Vec<String>,
+}
+
+#[derive(Debug, Serialize)]
+pub struct DecodeResponse {
+    pub input: String,
+    pub result: String,
+}
+
+#[derive(Debug, Serialize)]
+pub struct ErrorResponse {
+    pub error: String,
+}
+
+impl IntoResponse for ErrorResponse {
+    fn into_response(self) -> axum::response::Response {
+        (StatusCode::INTERNAL_SERVER_ERROR, Json(self)).into_response()
+    }
+}
+
+impl From<anyhow::Error> for ErrorResponse {
+    fn from(err: anyhow::Error) -> Self {
+        Self {
+            error: err.to_string(),
+        }
+    }
+}
+
+pub async fn encode_handler(
+    State(state): State<Arc<AppState>>,
+    Path(input): Path<String>,
+    Query(params): Query<EncodeQuery>,
+) -> Result<Json<EncodeResponse>, ErrorResponse> {
+    let dict_name = params.dict.unwrap_or_else(|| "demo_pl".to_string());
+    let encoder = state
+        .container
+        .create_encoder(&dict_name)
+        .await
+        .map_err(|e| anyhow::anyhow!("Failed to create encoder: {}", e))?;
+    let result = encoder
+        .encode(&input)
+        .map_err(|e| anyhow::anyhow!("Failed to encode: {}", e))?;
+
+    let encoded_parts: Vec<Vec<EncodePart>> = result
+        .iter()
+        .map(|split| {
+            split
+                .iter()
+                .map(|part| EncodePart {
+                    value: part.value,
+                    words: part.words.clone(),
+                })
+                .collect()
+        })
+        .collect();
+
+    Ok(Json(EncodeResponse {
+        input,
+        dict: dict_name,
+        result: encoded_parts,
+    }))
+}
+
+pub async fn decode_handler(
+    State(state): State<Arc<AppState>>,
+    Path(input): Path<String>,
+    Query(_params): Query<DecodeQuery>,
+) -> Result<Json<DecodeResponse>, ErrorResponse> {
+    let decoder = state
+        .container
+        .create_decoder()
+        .map_err(|e| anyhow::anyhow!("Failed to create decoder: {}", e))?;
+    let result = decoder
+        .decode(&input)
+        .map_err(|e| anyhow::anyhow!("Failed to decode: {}", e))?;
+
+    Ok(Json(DecodeResponse {
+        input,
+        result: result.as_str().to_string(),
+    }))
+}
+
+pub fn routes() -> Router<Arc<AppState>> {
+    Router::new()
+        .route("/encode/major_pl/{input}", get(encode_handler))
+        .route("/decode/major_pl/{input}", get(decode_handler))
+}
diff --git a/apps/app_api/src/container.rs b/apps/app_api/src/container.rs
index 9a319a7..6f6be09 100644
--- a/apps/app_api/src/container.rs
+++ b/apps/app_api/src/container.rs
@@ -28,4 +28,19 @@ impl Container {
         dict_repo.use_dict(dict_name);
         Ok(Arc::new(dict_repo))
     }
+
+    pub fn create_decoder(&self) -> anyhow::Result<Box<dyn SystemDecoder>> {
+        Ok(Box::new(major::Decoder::new(major::rules_pl::get_rules())))
+    }
+
+    pub async fn create_encoder(&self, dict_name: &str) -> anyhow::Result<Box<dyn SystemEncoder>> {
+        let dict = self.create_dict_repo(dict_name).await?;
+        let decoder = self.create_decoder()?;
+        let words_stream = dict.stream_batches(1000).await.unwrap();
+        let lvmap = major::LenValueMap::from_stream(words_stream, &(*decoder))
+            .await
+            .unwrap();
+        let encoder = major::Encoder::new(lvmap);
+        Ok(Box::new(encoder))
+    }
 }