Release 0.5.9

src/lib/server/live.ts

@@ -62,12 +62,20 @@ export type LiveView = {
 	next: LiveUsage | null;
 	completedCount: number;
 	totalCount: number;
+	sectionTimer: null | {
+		sectionId: string;
+		sectionName: string;
+		plannedDurationSeconds: number;
+		elapsedSeconds: number;
+		runningSinceUtc: string | null;
+	};
 };
 
 export type PresentationView = {
 	revision: number;
 	content: null | {
 		mode: PresentationContent['mode'];
+		topics: string[];
 		title: string;
 		html: string;
 		source: PresentationContent['source'];
@@ -141,6 +149,59 @@ function closeActiveRun(database: Database.Database, showId: string, now: string
 		.run(now, showId);
 }
 
+function closeSectionTimer(database: Database.Database, showId: string, now: string) {
+	const timer = database
+		.prepare('SELECT id FROM live_section_timers WHERE show_id = ? AND ended_at_utc IS NULL')
+		.get(showId) as { id: string } | undefined;
+	if (!timer) return;
+	database
+		.prepare(
+			'UPDATE live_section_timer_runs SET ended_at_utc = ? WHERE timer_id = ? AND ended_at_utc IS NULL'
+		)
+		.run(now, timer.id);
+	database
+		.prepare('UPDATE live_section_timers SET ended_at_utc = ? WHERE id = ?')
+		.run(now, timer.id);
+}
+
+function syncSectionTimer(
+	database: Database.Database,
+	showId: string,
+	usageId: string,
+	now: string
+) {
+	const section = database
+		.prepare(
+			`SELECT s.id, s.explicit_duration_seconds FROM piece_usages u
+			 JOIN show_sections s ON s.id = u.show_section_id
+			 WHERE u.id = ? AND s.show_id = ? AND s.is_reserve_bank = 0`
+		)
+		.get(usageId, showId) as { id: string; explicit_duration_seconds: number | null } | undefined;
+	if (!section) throw new Error('NOT_FOUND');
+	const active = database
+		.prepare(
+			'SELECT id, section_id FROM live_section_timers WHERE show_id = ? AND ended_at_utc IS NULL'
+		)
+		.get(showId) as { id: string; section_id: string } | undefined;
+	if (active?.section_id === section.id) return;
+	if (active) closeSectionTimer(database, showId, now);
+	if (!section.explicit_duration_seconds || section.explicit_duration_seconds <= 0) return;
+	const timerId = randomUUID();
+	database
+		.prepare(
+			`INSERT INTO live_section_timers
+			 (id, show_id, section_id, planned_duration_seconds, started_at_utc)
+			 VALUES (?, ?, ?, ?, ?)`
+		)
+		.run(timerId, showId, section.id, section.explicit_duration_seconds, now);
+	database
+		.prepare(
+			`INSERT INTO live_section_timer_runs (id, timer_id, started_at_utc)
+			 VALUES (?, ?, ?)`
+		)
+		.run(randomUUID(), timerId, now);
+}
+
 function activateUsage(database: Database.Database, showId: string, usageId: string, now: string) {
 	usageBelongsToShow(database, showId, usageId);
 	database
@@ -164,6 +225,7 @@ function activateUsage(database: Database.Database, showId: string, usageId: str
 			'UPDATE show_live_states SET current_usage_id = ?, ended_at_utc = NULL WHERE show_id = ?'
 		)
 		.run(usageId, showId);
+	syncSectionTimer(database, showId, usageId, now);
 }
 
 function executeCommand(
@@ -268,6 +330,44 @@ export function getLiveView(showId: string, nowValue?: Date): LiveView {
 	const next =
 		usages.slice(currentIndex + 1).find((usage) => usage.status === 'open') ??
 		(current ? null : (usages.find((usage) => usage.status === 'open') ?? null));
+	const timer = database
+		.prepare(
+			`SELECT t.id, t.section_id, s.name AS section_name, t.planned_duration_seconds
+			 FROM live_section_timers t JOIN show_sections s ON s.id = t.section_id
+			 WHERE t.show_id = ? AND t.ended_at_utc IS NULL`
+		)
+		.get(showId) as
+		| { id: string; section_id: string; section_name: string; planned_duration_seconds: number }
+		| undefined;
+	let sectionTimer: LiveView['sectionTimer'] = null;
+	if (timer) {
+		const runs = database
+			.prepare(
+				`SELECT started_at_utc, ended_at_utc FROM live_section_timer_runs
+				 WHERE timer_id = ? ORDER BY started_at_utc`
+			)
+			.all(timer.id) as { started_at_utc: string; ended_at_utc: string | null }[];
+		const running = runs.find((run) => run.ended_at_utc === null) ?? null;
+		const elapsedSeconds = runs.reduce(
+			(total, run) =>
+				total +
+				Math.max(
+					0,
+					Math.floor(
+						(new Date(run.ended_at_utc ?? now).getTime() - new Date(run.started_at_utc).getTime()) /
+							1_000
+					)
+				),
+			0
+		);
+		sectionTimer = {
+			sectionId: timer.section_id,
+			sectionName: timer.section_name,
+			plannedDurationSeconds: timer.planned_duration_seconds,
+			elapsedSeconds,
+			runningSinceUtc: running?.started_at_utc ?? null
+		};
+	}
 	return {
 		show: {
 			id: show.id,
@@ -287,7 +387,8 @@ export function getLiveView(showId: string, nowValue?: Date): LiveView {
 		next,
 		completedCount: usages.filter((usage) => usage.status === 'done' || usage.status === 'skipped')
 			.length,
-		totalCount: usages.length
+		totalCount: usages.length,
+		sectionTimer
 	};
 }
 
@@ -353,10 +454,12 @@ function advanceCurrent(
 				.run(status, state.current_usage_id);
 			const next = ordered.slice(currentIndex + 1).find((usage) => usage.status === 'open');
 			if (next) activateUsage(database, showId, next.id, now);
-			else
+			else {
+				closeSectionTimer(database, showId, now);
 				database
 					.prepare('UPDATE show_live_states SET current_usage_id = NULL WHERE show_id = ?')
 					.run(showId);
+			}
 		},
 		nowValue
 	);
@@ -655,6 +758,11 @@ function getPresentationViewForShow(showId: string): PresentationView {
 		revision: state.presentation_revision,
 		content: {
 			mode: usage.presentation_mode_snapshot,
+			topics: (
+				database
+					.prepare('SELECT name FROM usage_topic_snapshots WHERE usage_id = ? ORDER BY position')
+					.all(state.presentation_usage_id) as { name: string }[]
+			).map((topic) => topic.name),
 			title: usage.output_title_snapshot || usage.title_snapshot,
 			html: renderMarkdown(usage.presentation_snapshot),
 			source: usage.presentation_source_url_snapshot