Add interstitial endpoints and enhance media and template functionalities: implement MapInterstitialEndpoints in Program.cs, add preview functionality for media assets in MediaEndpoints, and introduce template preview capabilities in TemplateEndpoints. Remove obsolete bumper settings from Channel and related classes to streamline configuration.

frontend/src/features/admin/channels/api.ts

@@ -7,8 +7,13 @@ import type {
   ChannelDto,
   ChannelSummaryDto,
   CreatedIdResponse,
+  JunctionAmountMode,
+  JunctionConditions,
+  JunctionElementKind,
+  JunctionTemplateDto,
   LayerApplicability,
   ScheduleEntryDto,
+  SchedulePreviewDto,
   ScheduleTemplateDto,
   SlotDto,
 } from '@/shared/api/types'
@@ -58,9 +63,17 @@ export function applyChannelTemplate(channelId: string) {
   })
 }
 
+/** Сухой прогон по текущим правилам: ничего не пишет и не двигает курсоры слотов. */
+export function previewTemplate(channelId: string, days: number) {
+  const query = new URLSearchParams({ days: String(days) })
+  return apiRequest<SchedulePreviewDto>(
+    `/admin/channels/${channelId}/template/preview?${query.toString()}`,
+  )
+}
+
 export function updateTemplate(
   templateId: string,
-  body: { name: string; fallbackGroupId: string | null },
+  body: { name: string; fallbackGroupId: string | null; defaultJunctionId: string | null },
 ) {
   return apiRequest<void>(`/admin/templates/${templateId}`, { method: 'PUT', body })
 }
@@ -103,6 +116,70 @@ export function deleteSlot(slotId: string) {
   return apiRequest<void>(`/admin/slots/${slotId}`, { method: 'DELETE' })
 }
 
+// ── Стыки канала ──────────────────────────────────────────────────────────
+
+export function listJunctions(channelId: string) {
+  return apiRequest<JunctionTemplateDto[]>(`/admin/channels/${channelId}/junctions`)
+}
+
+export function createJunction(channelId: string, name: string) {
+  return apiRequest<CreatedIdResponse>(`/admin/channels/${channelId}/junctions`, {
+    method: 'POST',
+    body: { name },
+  })
+}
+
+export function renameJunction(junctionId: string, name: string) {
+  return apiRequest<void>(`/admin/junctions/${junctionId}`, { method: 'PUT', body: { name } })
+}
+
+export function deleteJunction(junctionId: string) {
+  return apiRequest<void>(`/admin/junctions/${junctionId}`, { method: 'DELETE' })
+}
+
+export function addJunctionElement(junctionId: string, kind: JunctionElementKind) {
+  return apiRequest<CreatedIdResponse>(`/admin/junctions/${junctionId}/elements`, {
+    method: 'POST',
+    body: { kind },
+  })
+}
+
+/** Тело врезки: то же для любого типа — лишние поля сервер обнуляет сам (см. JunctionElement.Update). */
+export type JunctionElementBody = {
+  kind: JunctionElementKind
+  groupId: string | null
+  bumperTemplateId: string | null
+  amountMode: JunctionAmountMode
+  amountValue: number
+  isRequired: boolean
+  conditions: JunctionConditions | null
+}
+
+export function updateJunctionElement(
+  junctionId: string,
+  elementId: string,
+  body: JunctionElementBody,
+) {
+  return apiRequest<void>(`/admin/junctions/${junctionId}/elements/${elementId}`, {
+    method: 'PUT',
+    body,
+  })
+}
+
+export function removeJunctionElement(junctionId: string, elementId: string) {
+  return apiRequest<void>(`/admin/junctions/${junctionId}/elements/${elementId}`, {
+    method: 'DELETE',
+  })
+}
+
+/** Порядок врезок: не упомянутые остаются после перечисленных. */
+export function reorderJunction(junctionId: string, elementIdsInOrder: string[]) {
+  return apiRequest<void>(`/admin/junctions/${junctionId}/order`, {
+    method: 'PUT',
+    body: { elementIdsInOrder },
+  })
+}
+
 export type BumperTemplateStyleBody = {
   name: string
   backgroundColor: string