Files
k-tv/k-tv-backend/api/src/routes/channels/schedule.rs

135 lines
4.4 KiB
Rust

use axum::{
Json,
extract::{Path, State},
http::StatusCode,
response::IntoResponse,
};
use chrono::Utc;
use uuid::Uuid;
use domain::{self, DomainError};
use crate::{
dto::{ScheduleHistoryEntry, ScheduleResponse},
error::ApiError,
extractors::CurrentUser,
state::AppState,
};
use super::require_owner;
/// Trigger 48-hour schedule generation for a channel, starting from now.
/// Replaces any existing schedule for the same window.
pub(super) async fn generate_schedule(
State(state): State<AppState>,
CurrentUser(user): CurrentUser,
Path(channel_id): Path<Uuid>,
) -> Result<impl IntoResponse, ApiError> {
let channel = state.channel_service.find_by_id(channel_id).await?;
require_owner(&channel, user.id)?;
let schedule = state
.schedule_engine
.generate_schedule(channel_id, Utc::now())
.await?;
let _ = state.event_tx.send(domain::DomainEvent::ScheduleGenerated {
channel_id,
schedule: schedule.clone(),
});
let detail = format!("{} slots", schedule.slots.len());
let _ = state.activity_log_repo.log("schedule_generated", &detail, Some(channel_id)).await;
Ok((StatusCode::CREATED, Json(ScheduleResponse::from(schedule))))
}
/// Return the currently active 48-hour schedule for a channel.
/// 404 if no schedule has been generated yet — call POST /:id/schedule first.
pub(super) async fn get_active_schedule(
State(state): State<AppState>,
CurrentUser(user): CurrentUser,
Path(channel_id): Path<Uuid>,
) -> Result<impl IntoResponse, ApiError> {
let channel = state.channel_service.find_by_id(channel_id).await?;
require_owner(&channel, user.id)?;
let schedule = state
.schedule_engine
.get_active_schedule(channel_id, Utc::now())
.await?
.ok_or(DomainError::NoActiveSchedule(channel_id))?;
Ok(Json(ScheduleResponse::from(schedule)))
}
/// List all schedule generations for a channel, newest first.
/// Returns lightweight entries (no slots).
pub(super) async fn list_schedule_history(
State(state): State<AppState>,
CurrentUser(user): CurrentUser,
Path(channel_id): Path<Uuid>,
) -> Result<impl IntoResponse, ApiError> {
let channel = state.channel_service.find_by_id(channel_id).await?;
require_owner(&channel, user.id)?;
let history = state.schedule_engine.list_schedule_history(channel_id).await?;
let entries: Vec<ScheduleHistoryEntry> = history.into_iter().map(Into::into).collect();
Ok(Json(entries))
}
/// Fetch a single historical schedule with all its slots.
pub(super) async fn get_schedule_history_entry(
State(state): State<AppState>,
CurrentUser(user): CurrentUser,
Path((channel_id, gen_id)): Path<(Uuid, Uuid)>,
) -> Result<impl IntoResponse, ApiError> {
let channel = state.channel_service.find_by_id(channel_id).await?;
require_owner(&channel, user.id)?;
let schedule = state
.schedule_engine
.get_schedule_by_id(channel_id, gen_id)
.await?
.ok_or_else(|| ApiError::NotFound(format!("Schedule {} not found", gen_id)))?;
Ok(Json(ScheduleResponse::from(schedule)))
}
/// Roll back to a previous schedule generation.
///
/// Deletes all generations after `gen_id`'s generation, then generates a fresh
/// schedule from now (inheriting the rolled-back generation as the base for
/// recycle-policy history).
pub(super) async fn rollback_schedule(
State(state): State<AppState>,
CurrentUser(user): CurrentUser,
Path((channel_id, gen_id)): Path<(Uuid, Uuid)>,
) -> Result<impl IntoResponse, ApiError> {
let channel = state.channel_service.find_by_id(channel_id).await?;
require_owner(&channel, user.id)?;
let target = state
.schedule_engine
.get_schedule_by_id(channel_id, gen_id)
.await?
.ok_or_else(|| ApiError::NotFound(format!("Schedule {} not found", gen_id)))?;
state
.schedule_engine
.delete_schedules_after(channel_id, target.generation)
.await?;
let schedule = state
.schedule_engine
.generate_schedule(channel_id, Utc::now())
.await?;
let _ = state.event_tx.send(domain::DomainEvent::ScheduleGenerated {
channel_id,
schedule: schedule.clone(),
});
let detail = format!("rollback to gen {}; {} slots", target.generation, schedule.slots.len());
let _ = state.activity_log_repo.log("schedule_rollback", &detail, Some(channel_id)).await;
Ok(Json(ScheduleResponse::from(schedule)))
}