Add persistent live controls and interaction notes

src/lib/components/UsageEditorDialog.svelte

@@ -108,6 +108,13 @@
 					rows={10}
 					bind:value={draft.moderation}
 				/>
+				<MarkdownEditorField
+					name="interaction"
+					label="Interaktion"
+					placeholder="Welche Frage möchtest du dem Chat stellen?"
+					privateField
+					bind:value={draft.interaction}
+				/>
 				<MarkdownEditorField
 					name="transition"
 					label="Überleitung"

src/lib/server/content.ts

@@ -46,6 +46,7 @@ export type PieceInput = {
 	intro: string;
 	researchText: string;
 	moderationNotes: string;
+	interactionText?: string;
 	transitionText: string;
 	presentationText: string;
 	presentationMode: PresentationMode;
@@ -83,7 +84,10 @@ export type PieceListItem = {
 	isFavorite: boolean;
 };
 
-export type PieceEditor = Omit<PieceInput, 'status' | 'tools' | 'presentationMediaId'> & {
+export type PieceEditor = Omit<
+	PieceInput,
+	'status' | 'tools' | 'presentationMediaId' | 'interactionText'
+> & {
 	id: string;
 	status: PieceStatus;
 	revision: number;
@@ -92,9 +96,12 @@ export type PieceEditor = Omit<PieceInput, 'status' | 'tools' | 'presentationMed
 	media: PieceMedia[];
 	presentationMediaId: string | null;
 	isFavorite: boolean;
+	interactionText: string;
 	tools: PieceTool[];
 };
 
+type ValidatedPieceInput = PieceInput;
+
 export type PieceMedia = {
 	id: string;
 	originalName: string;
@@ -187,7 +194,7 @@ function requireTaxonomyIds(table: 'formats' | 'topics' | 'section_categories',
 	if (count.count !== ids.length) throw new Error('INVALID_TAXONOMY');
 }
 
-function validatePieceInput(input: PieceInput): PieceInput {
+function validatePieceInput(input: PieceInput): ValidatedPieceInput {
 	const title = cleanText(input.title, 200, 'title');
 	if (!title) throw new Error('INVALID_TITLE');
 	if (!['inbox', 'preparing', 'ready'].includes(input.status)) throw new Error('INVALID_STATUS');
@@ -252,6 +259,10 @@ function validatePieceInput(input: PieceInput): PieceInput {
 		intro: cleanText(input.intro, 50_000, 'intro'),
 		researchText: cleanText(input.researchText, 50_000, 'research'),
 		moderationNotes: cleanText(input.moderationNotes, 50_000, 'moderation'),
+		interactionText:
+			input.interactionText === undefined
+				? undefined
+				: cleanText(input.interactionText, 50_000, 'interaction'),
 		transitionText: cleanText(input.transitionText, 50_000, 'transition'),
 		presentationText: cleanText(input.presentationText, 50_000, 'presentation'),
 		presentationMode: input.presentationMode,
@@ -402,6 +413,7 @@ type PieceRow = {
 	intro: string;
 	research_text: string;
 	moderation_notes: string;
+	interaction_text: string;
 	transition_text: string;
 	presentation_text: string;
 	presentation_mode: PresentationMode;
@@ -428,7 +440,7 @@ export function getPiece(id: string): PieceEditor | null {
 	const row = database
 		.prepare(
 			`SELECT id, title, output_title, summary, format_id, status, duration_seconds, intro, research_text,
-			 moderation_notes, transition_text, presentation_text, presentation_mode,
+			 moderation_notes, interaction_text, transition_text, presentation_text, presentation_mode,
 			 presentation_source_position, presentation_title, presentation_description,
 			 presentation_image_url, presentation_site_name, presentation_provider,
 			 presentation_provider_id, presentation_title_manual, presentation_description_manual,
@@ -452,6 +464,7 @@ export function getPiece(id: string): PieceEditor | null {
 		intro: row.intro,
 		researchText: row.research_text,
 		moderationNotes: row.moderation_notes,
+		interactionText: row.interaction_text,
 		transitionText: row.transition_text,
 		presentationText: row.presentation_text,
 		presentationMode: row.presentation_mode,
@@ -600,7 +613,7 @@ export function savePiece(id: string, expectedRevision: number, rawInput: PieceI
 		const result = database
 			.prepare(
 				`UPDATE pieces SET title = ?, output_title = ?, summary = ?, format_id = ?, status = ?, duration_seconds = ?,
-				 intro = ?, research_text = ?, moderation_notes = ?, transition_text = ?, presentation_text = ?,
+				 intro = ?, research_text = ?, moderation_notes = ?, interaction_text = COALESCE(?, interaction_text), transition_text = ?, presentation_text = ?,
 				 presentation_mode = ?, presentation_source_position = ?, presentation_title = ?,
 				 presentation_description = ?, presentation_image_url = ?, presentation_site_name = ?,
 				 presentation_provider = ?, presentation_provider_id = ?, presentation_title_manual = ?,
@@ -619,6 +632,7 @@ export function savePiece(id: string, expectedRevision: number, rawInput: PieceI
 				input.intro,
 				input.researchText,
 				input.moderationNotes,
+				input.interactionText ?? null,
 				input.transitionText,
 				input.presentationText,
 				input.presentationMode,
@@ -650,7 +664,7 @@ export function savePiece(id: string, expectedRevision: number, rawInput: PieceI
 	return { revision: expectedRevision + 1, updatedAtUtc };
 }
 
-function blankPieceInput(): PieceInput {
+function blankPieceInput(): ValidatedPieceInput {
 	return {
 		title: 'Neues Piece',
 		outputTitle: '',
@@ -661,6 +675,7 @@ function blankPieceInput(): PieceInput {
 		intro: '',
 		researchText: '',
 		moderationNotes: '',
+		interactionText: '',
 		transitionText: '',
 		presentationText: '',
 		presentationMode: 'text',
@@ -682,7 +697,7 @@ function blankPieceInput(): PieceInput {
 	};
 }
 
-function templateInput(templateId: string): PieceInput {
+function templateInput(templateId: string): ValidatedPieceInput {
 	if (templateId === 'blank') return blankPieceInput();
 	const row = getDatabase()
 		.prepare('SELECT snapshot_json FROM piece_templates WHERE id = ?')
@@ -739,8 +754,8 @@ export function createPiece(template = 'blank'): string {
 		database
 			.prepare(
 				`INSERT INTO pieces (id, title, output_title, summary, format_id, status, duration_seconds, intro,
-				 research_text, moderation_notes, transition_text, presentation_text, created_at_utc,
-				 updated_at_utc, revision) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1)`
+				 research_text, moderation_notes, interaction_text, transition_text, presentation_text, created_at_utc,
+				 updated_at_utc, revision) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1)`
 			)
 			.run(
 				id,
@@ -753,6 +768,7 @@ export function createPiece(template = 'blank'): string {
 				input.intro,
 				input.researchText,
 				input.moderationNotes,
+				input.interactionText ?? '',
 				input.transitionText,
 				input.presentationText,
 				now,
@@ -902,13 +918,16 @@ export async function duplicatePiece(sourceId: string): Promise<string> {
 			database
 				.prepare(
 					`INSERT INTO pieces (id, title, output_title, summary, format_id, status, duration_seconds, intro,
-					 research_text, moderation_notes, transition_text, presentation_text, presentation_mode,
+					 research_text, moderation_notes, interaction_text, transition_text, presentation_text, presentation_mode,
 					 presentation_source_position, presentation_title, presentation_description,
 					 presentation_image_url, presentation_site_name, presentation_provider,
 					 presentation_provider_id, presentation_title_manual,
 					 presentation_description_manual, presentation_image_manual,
 					 presentation_metadata_fetched_at_utc, created_at_utc, updated_at_utc, revision)
-					 VALUES (?, ?, ?, ?, ?, 'preparing', ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1)`
+					 VALUES (
+					 ?, ?, ?, ?, ?, 'preparing', ?, ?, ?, ?, ?, ?, ?,
+					 ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1
+					 )`
 				)
 				.run(
 					id,
@@ -920,6 +939,7 @@ export async function duplicatePiece(sourceId: string): Promise<string> {
 					source.intro,
 					source.researchText,
 					source.moderationNotes,
+					source.interactionText,
 					source.transitionText,
 					source.presentationText,
 					source.presentationMode,

src/lib/server/live.ts

@@ -11,6 +11,7 @@ import {
 	movePieceUsage,
 	type MovePieceUsageInput,
 	type PieceUsage,
+	type ShowStatus,
 	type ShowSection
 } from './shows.js';
 
@@ -41,6 +42,7 @@ export type LiveUsage = PieceUsage & {
 	introHtml: string;
 	researchHtml: string;
 	moderationHtml: string;
+	interactionHtml: string;
 	transitionHtml: string;
 };
 
@@ -55,7 +57,10 @@ export type LiveView = {
 		totalDurationSeconds: number;
 	};
 	liveRevision: number;
+	calculatedAtUtc: string;
 	startedAtUtc: string | null;
+	endedAtUtc: string | null;
+	isPaused: boolean;
 	updatedAtUtc: string;
 	presentationUsageId: string | null;
 	presentationRevision: number;
@@ -72,6 +77,15 @@ export type LiveView = {
 		elapsedSeconds: number;
 		runningSinceUtc: string | null;
 	};
+	totalTimer: {
+		elapsedSeconds: number;
+		runningSinceUtc: string | null;
+	};
+	remainingEstimate: {
+		seconds: number;
+		activeCountdownSeconds: number;
+		unplannedSectionCount: number;
+	};
 };
 
 export type PresentationView = {
@@ -152,6 +166,55 @@ function closeActiveRun(database: Database.Database, showId: string, now: string
 		.run(now, showId);
 }
 
+function closeShowTimerRun(database: Database.Database, showId: string, now: string) {
+	database
+		.prepare(
+			`UPDATE live_show_timer_runs SET ended_at_utc = ?
+			 WHERE show_id = ? AND ended_at_utc IS NULL`
+		)
+		.run(now, showId);
+}
+
+function openShowTimerRun(database: Database.Database, showId: string, now: string) {
+	const active = database
+		.prepare('SELECT 1 FROM live_show_timer_runs WHERE show_id = ? AND ended_at_utc IS NULL')
+		.get(showId);
+	if (!active) {
+		database
+			.prepare(
+				`INSERT INTO live_show_timer_runs (id, show_id, started_at_utc)
+				 VALUES (?, ?, ?)`
+			)
+			.run(randomUUID(), showId, now);
+	}
+}
+
+function showTimerRunning(database: Database.Database, showId: string) {
+	return Boolean(
+		database
+			.prepare('SELECT 1 FROM live_show_timer_runs WHERE show_id = ? AND ended_at_utc IS NULL')
+			.get(showId)
+	);
+}
+
+function elapsedRuns(
+	runs: { started_at_utc: string; ended_at_utc: string | null }[],
+	now: string
+) {
+	return 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
+	);
+}
+
 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')
@@ -167,6 +230,26 @@ function closeSectionTimer(database: Database.Database, showId: string, now: str
 		.run(now, timer.id);
 }
 
+function resumeSectionTimerRun(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;
+	const running = database
+		.prepare(
+			'SELECT 1 FROM live_section_timer_runs WHERE timer_id = ? AND ended_at_utc IS NULL'
+		)
+		.get(timer.id);
+	if (!running) {
+		database
+			.prepare(
+				`INSERT INTO live_section_timer_runs (id, timer_id, started_at_utc)
+				 VALUES (?, ?, ?)`
+			)
+			.run(randomUUID(), timer.id, now);
+	}
+}
+
 function syncSectionTimer(
 	database: Database.Database,
 	showId: string,
@@ -237,7 +320,8 @@ function executeCommand(
 	expectedRevision: number,
 	action: string,
 	operation: (database: Database.Database, state: LiveStateRow, now: string) => void,
-	nowValue?: Date
+	nowValue?: Date,
+	allowCompleted = false
 ) {
 	requireCommandId(commandId);
 	const database = getDatabase();
@@ -251,7 +335,7 @@ function executeCommand(
 		const show = database.prepare('SELECT status FROM shows WHERE id = ?').get(showId) as {
 			status: string;
 		};
-		if (show.status === 'completed') throw new Error('SHOW_COMPLETED');
+		if (show.status === 'completed' && !allowCompleted) throw new Error('SHOW_COMPLETED');
 		if (state.revision !== expectedRevision) throw new Error('CONFLICT');
 		operation(database, state, now);
 		const updated = database
@@ -307,6 +391,7 @@ function liveUsage(
 		introHtml: renderMarkdown(usage.intro),
 		researchHtml: renderMarkdown(usage.research),
 		moderationHtml: renderMarkdown(usage.moderation),
+		interactionHtml: renderMarkdown(usage.interaction),
 		transitionHtml: renderMarkdown(usage.transition)
 	};
 }
@@ -351,18 +436,7 @@ export function getLiveView(showId: string, nowValue?: Date): LiveView {
 			)
 			.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
-		);
+		const elapsedSeconds = elapsedRuns(runs, now);
 		sectionTimer = {
 			sectionId: timer.section_id,
 			sectionName: timer.section_name,
@@ -371,6 +445,50 @@ export function getLiveView(showId: string, nowValue?: Date): LiveView {
 			runningSinceUtc: running?.started_at_utc ?? null
 		};
 	}
+	const totalTimerRuns = database
+		.prepare(
+			`SELECT started_at_utc, ended_at_utc FROM live_show_timer_runs
+			 WHERE show_id = ? ORDER BY started_at_utc`
+		)
+		.all(showId) as { started_at_utc: string; ended_at_utc: string | null }[];
+	const runningTotalTimer = totalTimerRuns.find((run) => run.ended_at_utc === null) ?? null;
+	const totalElapsedSeconds = elapsedRuns(totalTimerRuns, now);
+	const remainingAnchor = current ?? next;
+	let reachedRemaining = !remainingAnchor;
+	let remainingSeconds = 0;
+	let activeCountdownSeconds = 0;
+	let unplannedSectionCount = 0;
+	for (const section of sections) {
+		if (section.id === remainingAnchor?.sectionId) reachedRemaining = true;
+		if (!reachedRemaining) continue;
+		const remainingUsages = section.usages.filter(
+			(usage) => usage.status === 'open' || usage.status === 'current'
+		);
+		if (remainingUsages.length === 0) continue;
+
+		if (section.id === current?.sectionId) {
+			if (section.durationSeconds > 0 && sectionTimer?.sectionId === section.id) {
+				activeCountdownSeconds = Math.max(0, section.durationSeconds - sectionTimer.elapsedSeconds);
+				remainingSeconds += activeCountdownSeconds;
+			} else {
+				remainingSeconds += remainingUsages.reduce((total, usage) => {
+					const elapsed = usage.id === current?.id ? usage.actualDurationSeconds : 0;
+					const remainder = Math.max(0, usage.durationSeconds - elapsed);
+					if (usage.id === current?.id) activeCountdownSeconds = remainder;
+					return total + remainder;
+				}, 0);
+				if (section.durationSeconds <= 0) unplannedSectionCount += 1;
+			}
+		} else if (section.durationSeconds > 0) {
+			remainingSeconds += section.durationSeconds;
+		} else {
+			remainingSeconds += remainingUsages.reduce(
+				(total, usage) => total + usage.durationSeconds,
+				0
+			);
+			unplannedSectionCount += 1;
+		}
+	}
 	return {
 		show: {
 			id: show.id,
@@ -380,7 +498,10 @@ export function getLiveView(showId: string, nowValue?: Date): LiveView {
 			totalDurationSeconds: show.totalDurationSeconds
 		},
 		liveRevision: state.revision,
+		calculatedAtUtc: now,
 		startedAtUtc: state.started_at_utc,
+		endedAtUtc: state.ended_at_utc,
+		isPaused: Boolean(state.started_at_utc && !state.ended_at_utc && !runningTotalTimer),
 		updatedAtUtc: state.updated_at_utc,
 		presentationUsageId: state.presentation_usage_id,
 		presentationRevision: state.presentation_revision,
@@ -391,7 +512,16 @@ export function getLiveView(showId: string, nowValue?: Date): LiveView {
 		completedCount: usages.filter((usage) => usage.status === 'done' || usage.status === 'skipped')
 			.length,
 		totalCount: usages.length,
-		sectionTimer
+		sectionTimer,
+		totalTimer: {
+			elapsedSeconds: totalElapsedSeconds,
+			runningSinceUtc: runningTotalTimer?.started_at_utc ?? null
+		},
+		remainingEstimate: {
+			seconds: remainingSeconds,
+			activeCountdownSeconds,
+			unplannedSectionCount
+		}
 	};
 }
 
@@ -409,7 +539,7 @@ export function startOrResumeLive(
 		(database, state, now) => {
 			database
 				.prepare(
-					`UPDATE shows SET status = 'live', updated_at_utc = ?
+					`UPDATE shows SET status = 'live', revision = revision + 1, updated_at_utc = ?
 					 WHERE id = ? AND status != 'completed'`
 				)
 				.run(now, showId);
@@ -419,10 +549,14 @@ export function startOrResumeLive(
 					 WHERE show_id = ?`
 				)
 				.run(now, showId);
+			openShowTimerRun(database, showId, now);
 			const activeRun = database
 				.prepare('SELECT 1 FROM live_usage_runs WHERE show_id = ? AND ended_at_utc IS NULL')
 				.get(showId);
-			if (state.current_usage_id && activeRun) return;
+			if (state.current_usage_id && activeRun) {
+				resumeSectionTimerRun(database, showId, now);
+				return;
+			}
 			const current = state.current_usage_id
 				? orderedUsages(database, showId).find((usage) => usage.id === state.current_usage_id)
 				: undefined;
@@ -434,6 +568,263 @@ export function startOrResumeLive(
 	);
 }
 
+export function pauseLive(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		'pause',
+		(database, state, now) => {
+			if (!state.started_at_utc || state.ended_at_utc) throw new Error('NOT_LIVE');
+			if (!showTimerRunning(database, showId)) throw new Error('ALREADY_PAUSED');
+			closeShowTimerRun(database, showId, now);
+			closeActiveRun(database, showId, now);
+			database
+				.prepare(
+					`UPDATE live_section_timer_runs SET ended_at_utc = ?
+					 WHERE timer_id IN (
+						SELECT id FROM live_section_timers WHERE show_id = ? AND ended_at_utc IS NULL
+					 ) AND ended_at_utc IS NULL`
+				)
+				.run(now, showId);
+		},
+		nowValue
+	);
+}
+
+export function resumeLive(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		'resume',
+		(database, state, now) => {
+			if (!state.started_at_utc || state.ended_at_utc) throw new Error('NOT_LIVE');
+			if (showTimerRunning(database, showId)) throw new Error('ALREADY_RUNNING');
+			openShowTimerRun(database, showId, now);
+			if (state.current_usage_id) {
+				database
+					.prepare(
+						`INSERT INTO live_usage_runs (id, show_id, usage_id, started_at_utc)
+						 VALUES (?, ?, ?, ?)`
+					)
+					.run(randomUUID(), showId, state.current_usage_id, now);
+			}
+			resumeSectionTimerRun(database, showId, now);
+		},
+		nowValue
+	);
+}
+
+export function resetSectionTimer(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		'reset-section-timer',
+		(database, _state, now) => {
+			const timer = database
+				.prepare(
+					`SELECT section_id, planned_duration_seconds
+					 FROM live_section_timers WHERE show_id = ? AND ended_at_utc IS NULL`
+				)
+				.get(showId) as
+				| { section_id: string; planned_duration_seconds: number }
+				| undefined;
+			if (!timer) throw new Error('NO_SECTION_TIMER');
+			const running = showTimerRunning(database, showId);
+			closeSectionTimer(database, showId, now);
+			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, timer.section_id, timer.planned_duration_seconds, now);
+			if (running) {
+				database
+					.prepare(
+						`INSERT INTO live_section_timer_runs (id, timer_id, started_at_utc)
+						 VALUES (?, ?, ?)`
+					)
+					.run(randomUUID(), timerId, now);
+			}
+		},
+		nowValue
+	);
+}
+
+export function resetTotalTimer(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		'reset-total-timer',
+		(database, state, now) => {
+			if (!state.started_at_utc || state.ended_at_utc) throw new Error('NOT_LIVE');
+			const running = showTimerRunning(database, showId);
+			database.prepare('DELETE FROM live_show_timer_runs WHERE show_id = ?').run(showId);
+			if (running) openShowTimerRun(database, showId, now);
+		},
+		nowValue
+	);
+}
+
+export function setShowStatus(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	expectedShowRevision: number,
+	status: Extract<ShowStatus, 'draft' | 'ready'>,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		`status-${status}`,
+		(database, state, now) => {
+			if (state.started_at_utc) throw new Error('ALREADY_STARTED');
+			const result = database
+				.prepare(
+					'UPDATE shows SET status = ?, revision = revision + 1, updated_at_utc = ? WHERE id = ? AND revision = ?'
+				)
+				.run(status, now, showId, expectedShowRevision);
+			if (result.changes !== 1) throw new Error('CONFLICT');
+		},
+		nowValue
+	);
+}
+
+export function endLive(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		'end',
+		(database, state, now) => {
+			if (!state.started_at_utc || state.ended_at_utc) throw new Error('NOT_LIVE');
+			closeShowTimerRun(database, showId, now);
+			closeActiveRun(database, showId, now);
+			database
+				.prepare(
+					`UPDATE live_section_timer_runs SET ended_at_utc = ?
+					 WHERE timer_id IN (
+						SELECT id FROM live_section_timers WHERE show_id = ? AND ended_at_utc IS NULL
+					 ) AND ended_at_utc IS NULL`
+				)
+				.run(now, showId);
+			database
+				.prepare(
+					`UPDATE show_live_states SET ended_at_utc = ? WHERE show_id = ?`
+				)
+				.run(now, showId);
+			database
+				.prepare(`UPDATE shows SET status = 'completed', revision = revision + 1, updated_at_utc = ? WHERE id = ?`)
+				.run(now, showId);
+		},
+		nowValue
+	);
+}
+
+export function resumeEndedLive(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		'resume-ended',
+		(database, state, now) => {
+			if (!state.ended_at_utc) throw new Error('NOT_ENDED');
+			database.prepare(`UPDATE shows SET status = 'live', revision = revision + 1, updated_at_utc = ? WHERE id = ?`).run(now, showId);
+			database
+				.prepare('UPDATE show_live_states SET ended_at_utc = NULL WHERE show_id = ?')
+				.run(showId);
+			openShowTimerRun(database, showId, now);
+			if (state.current_usage_id) {
+				database
+					.prepare(
+						`INSERT INTO live_usage_runs (id, show_id, usage_id, started_at_utc)
+						 VALUES (?, ?, ?, ?)`
+					)
+					.run(randomUUID(), showId, state.current_usage_id, now);
+				resumeSectionTimerRun(database, showId, now);
+			}
+		},
+		nowValue,
+		true
+	);
+}
+
+export function startNewLiveRun(
+	showId: string,
+	commandId: string,
+	expectedRevision: number,
+	nowValue?: Date
+) {
+	return executeCommand(
+		showId,
+		commandId,
+		expectedRevision,
+		'start-new-run',
+		(database, state, now) => {
+			if (!state.ended_at_utc) throw new Error('NOT_ENDED');
+			database.prepare('DELETE FROM live_usage_runs WHERE show_id = ?').run(showId);
+			database.prepare('DELETE FROM live_show_timer_runs WHERE show_id = ?').run(showId);
+			database.prepare('DELETE FROM live_section_timers WHERE show_id = ?').run(showId);
+			database
+				.prepare(
+					`UPDATE piece_usages SET status = 'open'
+					 WHERE show_section_id IN (SELECT id FROM show_sections WHERE show_id = ?)`
+				)
+				.run(showId);
+			database
+				.prepare(
+					`UPDATE show_live_states
+					 SET current_usage_id = NULL, started_at_utc = ?, ended_at_utc = NULL
+					 WHERE show_id = ?`
+				)
+				.run(now, showId);
+			database.prepare(`UPDATE shows SET status = 'live', revision = revision + 1, updated_at_utc = ? WHERE id = ?`).run(now, showId);
+			openShowTimerRun(database, showId, now);
+			const target = orderedUsages(database, showId).find((usage) => usage.status === 'open');
+			if (target) activateUsage(database, showId, target.id, now);
+		},
+		nowValue,
+		true
+	);
+}
+
 function advanceCurrent(
 	showId: string,
 	commandId: string,
@@ -447,6 +838,7 @@ function advanceCurrent(
 		expectedRevision,
 		status,
 		(database, state, now) => {
+			if (!showTimerRunning(database, showId)) throw new Error('TIMER_PAUSED');
 			if (!state.current_usage_id) throw new Error('NO_CURRENT');
 			const ordered = orderedUsages(database, showId);
 			const currentIndex = ordered.findIndex((usage) => usage.id === state.current_usage_id);
@@ -498,6 +890,7 @@ export function goBack(
 		expectedRevision,
 		'back',
 		(database, state, now) => {
+			if (!showTimerRunning(database, showId)) throw new Error('TIMER_PAUSED');
 			const ordered = orderedUsages(database, showId);
 			const currentIndex = state.current_usage_id
 				? ordered.findIndex((usage) => usage.id === state.current_usage_id)
@@ -533,6 +926,7 @@ export function selectUsage(
 		'select',
 		(database, state, now) => {
 			if (!state.started_at_utc) throw new Error('NOT_STARTED');
+			if (!showTimerRunning(database, showId)) throw new Error('TIMER_PAUSED');
 			usageBelongsToShow(database, showId, usageId);
 			if (state.current_usage_id === usageId) return;
 			if (state.current_usage_id) {

src/lib/server/shows.ts

@@ -47,6 +47,7 @@ export type PieceUsage = {
 	intro: string;
 	research: string;
 	moderation: string;
+	interaction: string;
 	transition: string;
 	presentation: string;
 	presentationMode: PresentationMode;
@@ -157,6 +158,7 @@ export type PieceUsageUpdate = {
 	intro: string;
 	research: string;
 	moderation: string;
+	interaction?: string;
 	transition: string;
 	presentation: string;
 	presentationMode: PresentationMode;
@@ -216,6 +218,7 @@ type UsageRow = {
 	intro_snapshot: string;
 	research_snapshot: string;
 	moderation_snapshot: string;
+	interaction_snapshot: string;
 	transition_snapshot: string;
 	presentation_snapshot: string;
 	presentation_mode_snapshot: PresentationMode;
@@ -445,6 +448,7 @@ function usageFromRow(database: Database.Database, row: UsageRow): PieceUsage {
 		intro: row.intro_snapshot,
 		research: row.research_snapshot,
 		moderation: row.moderation_snapshot,
+		interaction: row.interaction_snapshot,
 		transition: row.transition_snapshot,
 		presentation: row.presentation_snapshot,
 		presentationMode: row.presentation_mode_snapshot,
@@ -793,7 +797,7 @@ export function getShow(id: string): Show | null {
 		.prepare(
 			`SELECT u.id, u.show_section_id, u.original_piece_id, u.position, u.status,
 			 u.duration_seconds, u.title_snapshot, u.output_title_snapshot, u.intro_snapshot, u.research_snapshot,
-			 u.moderation_snapshot, u.transition_snapshot, u.presentation_snapshot,
+			 u.moderation_snapshot, u.interaction_snapshot, u.transition_snapshot, u.presentation_snapshot,
 			 u.presentation_mode_snapshot, u.presentation_source_label_snapshot,
 			 u.presentation_source_url_snapshot, u.presentation_source_timecode_snapshot,
 			 u.presentation_title_meta_snapshot, u.presentation_description_snapshot,
@@ -1126,7 +1130,7 @@ export function addPieceUsage(
 		const piece = database
 			.prepare(
 				`SELECT p.title, p.output_title, p.duration_seconds, p.intro, p.research_text, p.moderation_notes,
-				 p.transition_text, p.presentation_text, p.status, p.presentation_mode,
+				 p.interaction_text, p.transition_text, p.presentation_text, p.status, p.presentation_mode,
 				 COALESCE(ps.label, '') AS presentation_source_label,
 				 COALESCE(ps.url, '') AS presentation_source_url,
 				 ps.timecode_seconds AS presentation_source_timecode,
@@ -1143,6 +1147,7 @@ export function addPieceUsage(
 					intro: string;
 					research_text: string;
 					moderation_notes: string;
+					interaction_text: string;
 					transition_text: string;
 					presentation_text: string;
 					presentation_mode: PresentationMode;
@@ -1178,13 +1183,13 @@ export function addPieceUsage(
 			.prepare(
 				`INSERT INTO piece_usages (id, show_section_id, original_piece_id, position, status,
 				 duration_seconds, title_snapshot, output_title_snapshot, intro_snapshot, research_snapshot,
-				 moderation_snapshot, transition_snapshot, presentation_snapshot,
+				 moderation_snapshot, interaction_snapshot, transition_snapshot, presentation_snapshot,
 				 presentation_mode_snapshot, presentation_source_label_snapshot,
 				 presentation_source_url_snapshot, presentation_source_timecode_snapshot,
 				 presentation_title_meta_snapshot, presentation_description_snapshot,
 				 presentation_image_url_snapshot, presentation_site_name_snapshot,
 				 presentation_provider_snapshot, presentation_provider_id_snapshot, own_notes, is_reserve)
-				 VALUES (?, ?, ?, ?, 'open', ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, '', ?)`
+				 VALUES (?, ?, ?, ?, 'open', ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, '', ?)`
 			)
 			.run(
 				id,
@@ -1197,6 +1202,7 @@ export function addPieceUsage(
 				piece.intro,
 				piece.research_text,
 				piece.moderation_notes,
+				piece.interaction_text,
 				piece.transition_text,
 				piece.presentation_text,
 				piece.presentation_mode,
@@ -1284,7 +1290,7 @@ export function duplicatePieceUsage(
 		const source = database
 			.prepare(
 				`SELECT original_piece_id, status, duration_seconds, title_snapshot, output_title_snapshot, intro_snapshot,
-				 research_snapshot, moderation_snapshot, transition_snapshot, presentation_snapshot,
+				 research_snapshot, moderation_snapshot, interaction_snapshot, transition_snapshot, presentation_snapshot,
 				 presentation_mode_snapshot, presentation_source_label_snapshot,
 				 presentation_source_url_snapshot, presentation_source_timecode_snapshot,
 				 presentation_title_meta_snapshot, presentation_description_snapshot,
@@ -1307,13 +1313,13 @@ export function duplicatePieceUsage(
 			.prepare(
 				`INSERT INTO piece_usages (id, show_section_id, original_piece_id, position, status,
 				 duration_seconds, title_snapshot, output_title_snapshot, intro_snapshot, research_snapshot,
-				 moderation_snapshot, transition_snapshot, presentation_snapshot,
+				 moderation_snapshot, interaction_snapshot, transition_snapshot, presentation_snapshot,
 				 presentation_mode_snapshot, presentation_source_label_snapshot,
 				 presentation_source_url_snapshot, presentation_source_timecode_snapshot,
 				 presentation_title_meta_snapshot, presentation_description_snapshot,
 				 presentation_image_url_snapshot, presentation_site_name_snapshot,
 				 presentation_provider_snapshot, presentation_provider_id_snapshot, own_notes, is_reserve)
-				 VALUES (?, ?, ?, ?, 'open', ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+				 VALUES (?, ?, ?, ?, 'open', ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
 			)
 			.run(
 				id,
@@ -1326,6 +1332,7 @@ export function duplicatePieceUsage(
 				source.intro_snapshot,
 				source.research_snapshot,
 				source.moderation_snapshot,
+				source.interaction_snapshot,
 				source.transition_snapshot,
 				source.presentation_snapshot,
 				source.presentation_mode_snapshot,
@@ -1360,7 +1367,7 @@ export function refreshPieceUsageFromOriginal(
 		const source = database
 			.prepare(
 				`SELECT p.title, p.output_title, p.duration_seconds, p.intro, p.research_text,
-				 p.moderation_notes, p.transition_text, p.presentation_text, p.presentation_mode,
+				 p.moderation_notes, p.interaction_text, p.transition_text, p.presentation_text, p.presentation_mode,
 				 COALESCE(ps.label, '') AS presentation_source_label,
 				 COALESCE(ps.url, '') AS presentation_source_url,
 				 ps.timecode_seconds AS presentation_source_timecode,
@@ -1379,6 +1386,7 @@ export function refreshPieceUsageFromOriginal(
 					intro: string;
 					research_text: string;
 					moderation_notes: string;
+					interaction_text: string;
 					transition_text: string;
 					presentation_text: string;
 					presentation_mode: PresentationMode;
@@ -1397,7 +1405,7 @@ export function refreshPieceUsageFromOriginal(
 		database
 			.prepare(
 				`UPDATE piece_usages SET title_snapshot = ?, output_title_snapshot = ?, duration_seconds = ?, intro_snapshot = ?,
-				 research_snapshot = ?, moderation_snapshot = ?, transition_snapshot = ?,
+				 research_snapshot = ?, moderation_snapshot = ?, interaction_snapshot = ?, transition_snapshot = ?,
 				 presentation_snapshot = ?, presentation_mode_snapshot = ?,
 				 presentation_source_label_snapshot = ?, presentation_source_url_snapshot = ?,
 				 presentation_source_timecode_snapshot = ?, presentation_title_meta_snapshot = ?,
@@ -1412,6 +1420,7 @@ export function refreshPieceUsageFromOriginal(
 				source.intro,
 				source.research_text,
 				source.moderation_notes,
+				source.interaction_text,
 				source.transition_text,
 				source.presentation_text,
 				source.presentation_mode,
@@ -1452,6 +1461,8 @@ export function updatePieceUsage(
 		intro: cleanText(input.intro, 50_000, 'intro'),
 		research: cleanText(input.research, 50_000, 'research'),
 		moderation: cleanText(input.moderation, 50_000, 'moderation'),
+		interaction:
+			input.interaction === undefined ? null : cleanText(input.interaction, 50_000, 'interaction'),
 		transition: cleanText(input.transition, 50_000, 'transition'),
 		presentation: cleanText(input.presentation, 50_000, 'presentation'),
 		ownNotes: cleanText(input.ownNotes, 50_000, 'notes')
@@ -1473,7 +1484,7 @@ export function updatePieceUsage(
 		database
 			.prepare(
 				`UPDATE piece_usages SET title_snapshot = ?, output_title_snapshot = ?, intro_snapshot = ?, research_snapshot = ?,
-				 moderation_snapshot = ?, transition_snapshot = ?, presentation_snapshot = ?,
+				 moderation_snapshot = ?, interaction_snapshot = COALESCE(?, interaction_snapshot), transition_snapshot = ?, presentation_snapshot = ?,
 				 presentation_mode_snapshot = ?, presentation_source_label_snapshot = ?,
 				 presentation_source_url_snapshot = ?, presentation_source_timecode_snapshot = ?,
 				 presentation_title_meta_snapshot = ?, presentation_description_snapshot = ?,
@@ -1487,6 +1498,7 @@ export function updatePieceUsage(
 				values.intro,
 				values.research,
 				values.moderation,
+				values.interaction,
 				values.transition,
 				values.presentation,
 				presentation.mode,