use super::models::*;
use super::printer::{spawn_print_task, start_printing_locked, begin_next_locked};
use axum::{extract::{Path as AxumPath, State}, http::StatusCode, Json};

pub async fn job_advance(
    State(store): State<JobStore>,
    AxumPath(job_id): AxumPath<String>,
) -> Result<Json<JobView>, (StatusCode, String)> {
    let (view, spawn_info) = {
        let mut m = store.lock().unwrap();
        let job = m.get_mut(&job_id).ok_or_else(|| (StatusCode::NOT_FOUND, "Задание не найдено".into()))?;

        let si = match job.phase {
            JobPhase::WaitingStart => {
                let next_idx = 0;
                job.current = Some(next_idx);
                Some(start_printing_locked(job, next_idx))
            }
            JobPhase::AwaitingPickup => {
                let c = job.current.unwrap_or(0);
                if job.duplex_first_pass_done {
                    job.duplex_first_pass_done = false;
                    job.files[c].status = FileStatus::AwaitingClearOutput;
                    job.phase = JobPhase::AwaitingClearOutput; None
                } else {
                    job.files[c].status = FileStatus::Done;
                    begin_next_locked(job, c)
                }
            }
            JobPhase::AwaitingClearOutput => {
                let c = job.current.unwrap_or(0);
                job.files[c].status = FileStatus::AwaitingFlip;
                job.phase = JobPhase::AwaitingFlip; None
            }
            JobPhase::AwaitingFlip => {
                let c = job.current.unwrap();
                job.files[c].status = FileStatus::Printing;
                job.phase = JobPhase::Printing;
                Some(SpawnInfo {
                    job_id: job.id.clone(), idx: c,
                    path: job.files[c].path.to_path_buf(),
                    settings: job.files[c].settings.clone(),
                    is_second_pass: true,
                })
            }
            _ => None,
        };
        (job.view(), si)
    };

    if let Some(si) = spawn_info { spawn_print_task(store.clone(), si); }
    Ok(Json(view))
}