use crate::routes::{NewPost, Post};
use log::warn;
use sqlx::SqlitePool;

// Gets the latest posts from the database, ordered by created_at
pub async fn db_get_latest_posts(pool: &SqlitePool, limit: i64, offset: i64) -> Vec<Post> {
    sqlx::query_as!(
        Post,
        "SELECT * FROM posts ORDER BY created_at DESC LIMIT ? OFFSET ?",
        limit,
        offset
    )
    .fetch_all(pool)
    .await
    .unwrap()
}

// Inserts a new post to the database
pub async fn db_new_post(post: NewPost, pool: &SqlitePool) -> Option<Post> {
    let insert_query = sqlx::query!(
        "INSERT INTO posts (user_id, content) VALUES (1, ?)",
        post.content
    )
    .execute(pool)
    .await;

    if insert_query.is_err() {
        let s = insert_query.err().unwrap();
        warn!("Error inserting post into database: {}", s);
        return None;
    }

    // Dips into the database to get the post we just inserted
    let post = sqlx::query_as!(
        Post,
        "SELECT * FROM posts WHERE id = (SELECT MAX(id) FROM posts)"
    )
    .fetch_one(pool)
    .await
    .ok()?;

    Some(post)
}