use axum::routing::{get, post};
use axum::{
    extract::{Path, State},
    http::StatusCode,
    Json, Router,
};
use axum_macros::debug_handler;

use sea_orm::ColumnTrait;
use sea_orm::{entity::*, query::*,};
use crate::model::db::prelude::Book;
use crate::model::db::book::Model as BookModel;
use crate::model::db::book::Column as BookColumn;
use crate::model::http_body::book;
use crate::AppState;
use crate::model::http_body::book::BookItem;

pub fn get_nest_handlers() -> Router<crate::AppState> {
    Router::new()
        .route("/", get(get_all_books_handler))
        // .route("/{id}", post(update_book).get(get_book))
}

// handlers
//
#[debug_handler]
async fn get_all_books_handler(
    state: State<AppState>
) -> Result<Json<Vec<book::BookItem>>,(StatusCode,String)> {
    // let conn = state.conn.get_postgres_connection_pool();
    let uid :i64 = 1;
    let all_books  = Book::find()
        .filter(BookColumn::Uid.eq(uid))
        .all(&state.conn)
        .await
        .map_err(|e| (StatusCode::INTERNAL_SERVER_ERROR,e.to_string()))?;

    let mut books: Vec<BookItem> = Vec::new();
    for b in all_books {
        let book_resp = BookItem{
            id: b.id,
            name: b.name,
        };
        books.push(book_resp);
    }
    Ok(Json(books))
}