//! Diet API handlers.

use axum::{extract::State, http::StatusCode, Json};
use sea_orm::{DatabaseConnection, EntityTrait};
use serde::Serialize;

use crate::models::user::diet;

/// Response for a diet type.
#[derive(Serialize)]
pub struct DietResponse {
    pub id: i32,
    pub name: String,
    pub description: Option<String>,
}

/// GET /api/diets - List all diet types for UI dropdown.
pub async fn list_diets(
    State(db): State<DatabaseConnection>,
) -> Result<Json<Vec<DietResponse>>, StatusCode> {
    let diets = diet::Entity::find()
        .all(&db)
        .await
        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;

    let items: Vec<DietResponse> = diets
        .into_iter()
        .map(|d| DietResponse {
            id: d.id,
            name: d.name,
            description: d.description,
        })
        .collect();

    Ok(Json(items))
}