//! Read-only view of the fleet, used by the reservation form to show which
//! cargo bikes can be picked.

use aide::{
    axum::{
        ApiRouter,
        routing::{get_with, put_with},
    },
    transform::TransformOperation,
};
use axum::{Json, extract::Path, http::StatusCode};
use schemars::JsonSchema;
use serde::Deserialize;

use crate::{
    api::helpers::{IdPath, admin, admin_desc, unexpected_error},
    core::{
        controller::{AnonAppController, AppController},
        models::bike::{Bike, BikeStatus},
    },
};

pub fn routes() -> ApiRouter {
    ApiRouter::new()
        .api_route("/", get_with(get_bikes, get_bikes_docs))
        .api_route("/{id}/status", put_with(set_status, set_status_docs))
}

#[derive(Debug, Deserialize, JsonSchema)]
struct SetStatusForm {
    status: BikeStatus,
}

/// Takes a bike in or out of the fleet. Deleting is not offered: a bike that
/// has been booked must stay, for the history.
#[axum::debug_handler]
async fn set_status(
    ac: AppController,
    Path(IdPath { id }): Path<IdPath>,
    Json(SetStatusForm { status }): Json<SetStatusForm>,
) -> Result<(), (StatusCode, String)> {
    match admin(ac)?.set_bike_status(id, status).await {
        Ok(()) => Ok(()),
        Err(err) if err.is_not_found() => Err((StatusCode::NOT_FOUND, "No such bike".to_owned())),
        Err(err) => unexpected_error("set_bike_status", err),
    }
}

fn set_status_docs(op: TransformOperation) -> TransformOperation {
    op.tag("Bikes")
        .summary("Put a bike in or out of service")
        .response_with::<403, (), _>(admin_desc)
        .response::<404, ()>()
}

#[axum::debug_handler]
async fn get_bikes(aac: AnonAppController) -> Result<Json<Vec<Bike>>, (StatusCode, String)> {
    match aac.get_bikes().await {
        Ok(bikes) => Ok(Json(bikes)),
        Err(err) => unexpected_error("get_bikes", err),
    }
}

fn get_bikes_docs(op: TransformOperation) -> TransformOperation {
    op.tag("Bikes").summary("Get the fleet")
}