Implement BumperEndpoints and remove deprecated bumper-related functionality

Added new BumperEndpoints to the API for managing bumper templates and variants, enhancing the channel management capabilities. Removed outdated bumper-related commands and handlers from the application, streamlining the codebase and improving maintainability. Updated ChannelEndpoints to reflect these changes and ensure proper routing for the new endpoints.

backend/src/TeleWave.Infrastructure/Media/FfmpegBumperRenderer.cs

@@ -2,14 +2,15 @@ using System.Globalization;
 using System.Text;
 using Microsoft.Extensions.Options;
 using TeleWave.Application.Common.Interfaces;
+using TeleWave.Domain.Broadcast;
 using static TeleWave.Infrastructure.Media.FfmpegText;
 
 namespace TeleWave.Infrastructure.Media;
 
 /// <summary>
 /// Синтезирует ТВ-заставку перехода полностью на ffmpeg (без исходного файла) по
-/// <see cref="BumperRenderSpec"/>: анимированный градиентный фон + текст «Сейчас/Далее» + короткий
-/// джингл, и режет результат на те же HLS-сегменты, что и обычный ассет. Длительность фиксированная и
+/// <see cref="BumperRenderSpec"/>: анимированный градиентный фон + строки текста + короткий джингл,
+/// и режет результат на те же HLS-сегменты, что и обычный ассет. Длительность фиксированная и
 /// кратная сегменту, поэтому эфирная математика не отличает заставку от программы.
 /// </summary>
 public sealed class FfmpegBumperRenderer(
@@ -22,21 +23,19 @@ public sealed class FfmpegBumperRenderer(
     private readonly MediaOptions _media = mediaOptions.Value;
 
     /// <summary>
-    /// Файлы с динамическим текстом заставки. Всё пользователь-редактируемое (названия шоу, подписи,
-    /// свободные строки) ffmpeg читает через <c>textfile=</c> с <c>expansion=none</c>: иначе запятая,
-    /// <c>;</c>, <c>[</c> или <c>]</c> в тексте ломают (или инъектируют звенья в) цепочку
-    /// <c>-filter_complex</c>.
+    /// Одна строка, разложенная под drawtext: файл с текстом, размер, цвет и вертикальная позиция.
+    /// Текст ffmpeg читает через <c>textfile=</c> с <c>expansion=none</c>: иначе запятая, <c>;</c>,
+    /// <c>[</c> или <c>]</c> в тексте ломают (или инъектируют звенья в) цепочку <c>-filter_complex</c>.
     /// </summary>
-    private sealed record TextFiles(string Now, string Next, string NowLabel, string NextLabel)
-    {
-        public static TextFiles In(string assetDir) =>
-            new(
-                Path.Combine(assetDir, "now.txt"),
-                Path.Combine(assetDir, "next.txt"),
-                Path.Combine(assetDir, "nowlabel.txt"),
-                Path.Combine(assetDir, "nextlabel.txt")
-            );
-    }
+    private sealed record LayoutLine(
+        string File,
+        string Text,
+        int FontSize,
+        string Color,
+        int Y,
+        bool Shadow,
+        double FadeStart
+    );
 
     public async Task<BumperRenderResult> RenderAsync(
         Guid assetId,
@@ -53,33 +52,18 @@ public sealed class FfmpegBumperRenderer(
             Directory.Delete(assetDir, recursive: true);
         Directory.CreateDirectory(assetDir);
 
-        // Названия шоу / свободные строки.
-        var text = TextFiles.In(assetDir);
-        var line1 = spec.FreeText ? spec.FreeLine1 : spec.NowTitle;
-        var line2 = spec.FreeText ? spec.FreeLine2 : spec.NextTitle;
-        await File.WriteAllTextAsync(text.Now, line1, new UTF8Encoding(false), cancellationToken);
-        await File.WriteAllTextAsync(text.Next, line2, new UTF8Encoding(false), cancellationToken);
-
-        // Подписи «Сейчас/Далее» нужны лишь в одноимённом режиме — в FreeText их не рисуют.
-        if (!spec.FreeText)
-        {
+        var layout = Layout(assetDir, spec);
+        foreach (var line in layout)
             await File.WriteAllTextAsync(
-                text.NowLabel,
-                spec.NowLabel,
+                line.File,
+                line.Text,
                 new UTF8Encoding(false),
                 cancellationToken
             );
-            await File.WriteAllTextAsync(
-                text.NextLabel,
-                spec.NextLabel,
-                new UTF8Encoding(false),
-                cancellationToken
-            );
-        }
 
         try
         {
-            var args = BuildArgs(assetDir, seg, target, text, spec);
+            var args = BuildArgs(assetDir, seg, target, layout, spec);
             var result = await ProcessRunner.RunAsync(
                 _media.FfmpegPath,
                 args,
@@ -115,36 +99,83 @@ public sealed class FfmpegBumperRenderer(
         }
         finally
         {
-            TryDelete(text.Now);
-            TryDelete(text.Next);
-            TryDelete(text.NowLabel);
-            TryDelete(text.NextLabel);
+            foreach (var line in layout)
+                TryDelete(line.File);
         }
     }
 
+    /// <summary>
+    /// Раскладывает строки по кадру: блок центрируется целиком по вертикали, размер зависит от роли
+    /// и ужимается под ширину, строки проявляются по очереди. Фиксированных мест у ролей нет —
+    /// иначе набор из двух строк висел бы в верхней трети кадра, как это было у «Сейчас/Далее».
+    /// </summary>
+    private static List<LayoutLine> Layout(string assetDir, BumperRenderSpec spec)
+    {
+        var h = spec.Height;
+        var titleSize = Math.Max(24, h / 10);
+        var labelSize = Math.Max(14, h / 22);
+        var captionSize = Math.Max(12, h / 28);
+        var textWidth = (int)(spec.Width * 0.92); // Поля по 4% с каждой стороны.
+
+        var sizes = spec
+            .Lines.Select(line =>
+            {
+                var baseSize = line.Style switch
+                {
+                    BumperLineStyle.Title => titleSize,
+                    BumperLineStyle.Caption => captionSize,
+                    _ => labelSize,
+                };
+                return FitSize(line.Text, baseSize, textWidth);
+            })
+            .ToList();
+
+        // Между подписью и её названием зазор меньше, чем между смысловыми блоками.
+        var gaps = new List<int>();
+        for (var i = 1; i < spec.Lines.Count; i++)
+            gaps.Add(
+                spec.Lines[i - 1].Style == BumperLineStyle.Label
+                    ? (int)(sizes[i] * 0.25)
+                    : (int)(sizes[i] * 0.8)
+            );
+
+        var totalHeight = sizes.Sum(s => (int)(s * 1.2)) + gaps.Sum();
+        var y = (h - totalHeight) / 2;
+
+        var layout = new List<LayoutLine>(spec.Lines.Count);
+        for (var i = 0; i < spec.Lines.Count; i++)
+        {
+            if (i > 0)
+                y += (int)(sizes[i - 1] * 1.2) + gaps[i - 1];
+
+            var line = spec.Lines[i];
+            layout.Add(
+                new LayoutLine(
+                    Path.Combine(assetDir, $"line{i}.txt"),
+                    line.Text,
+                    sizes[i],
+                    line.Color == BumperLineColor.Accent ? spec.AccentColor : spec.TextColor,
+                    y,
+                    line.Style == BumperLineStyle.Title,
+                    0.2 + i * 0.3
+                )
+            );
+        }
+
+        return layout;
+    }
+
     private List<string> BuildArgs(
         string assetDir,
         int seg,
         int target,
-        TextFiles text,
+        IReadOnlyList<LayoutLine> layout,
         BumperRenderSpec spec
     )
     {
         var w = spec.Width;
         var h = spec.Height;
 
-        var titleSize = Math.Max(24, h / 10);
-        var labelSize = Math.Max(14, h / 22);
-        var gap = (int)(labelSize * 1.4);
-
-        // Доступная ширина под текст (поля по 4% с каждой стороны) — под неё ужимаем длинные строки.
-        var textWidth = (int)(w * 0.92);
-
-        var nowLabelY = (int)(h * 0.22);
-        var nowTitleY = nowLabelY + gap;
-        var nextLabelY = (int)(h * 0.60);
-        var nextTitleY = nextLabelY + gap;
-
         var font = EscapePath(spec.FontFile);
         var outStart = Math.Max(0, target - 1);
 
@@ -200,41 +231,8 @@ public sealed class FfmpegBumperRenderer(
         }
 
         var vchain = new StringBuilder(videoPrefix);
-        if (spec.FreeText)
-        {
-            // Свободный текст: две центрированные строки (акцентная + основная), ужатые под ширину кадра.
-            var line1Size = FitSize(spec.FreeLine1, labelSize + 4, textWidth);
-            var line2Size = FitSize(spec.FreeLine2, titleSize, textWidth);
-            var line1Y = (int)(h * 0.40);
-            var line2Y = line1Y + (int)(line2Size * 1.2);
-            vchain
-                .Append(',')
-                .Append(DrawTitle(font, text.Now, spec.AccentColor, line1Size, line1Y, 0.2));
-            vchain
-                .Append(',')
-                .Append(DrawTitle(font, text.Next, spec.TextColor, line2Size, line2Y, 0.5));
-        }
-        else
-        {
-            var nowSize = FitSize(spec.NowTitle, titleSize, textWidth);
-            var nextSize = FitSize(spec.NextTitle, titleSize, textWidth);
-            vchain
-                .Append(',')
-                .Append(
-                    DrawLabel(font, text.NowLabel, spec.AccentColor, labelSize, nowLabelY, 0.2)
-                );
-            vchain
-                .Append(',')
-                .Append(DrawTitle(font, text.Now, spec.TextColor, nowSize, nowTitleY, 0.3));
-            vchain
-                .Append(',')
-                .Append(
-                    DrawLabel(font, text.NextLabel, spec.AccentColor, labelSize, nextLabelY, 1.0)
-                );
-            vchain
-                .Append(',')
-                .Append(DrawTitle(font, text.Next, spec.TextColor, nextSize, nextTitleY, 1.1));
-        }
+        foreach (var line in layout)
+            vchain.Append(',').Append(DrawLine(font, line));
         vchain.Append("[v]");
 
         var filterComplex = $"{vchain};{audioChain}";
@@ -304,33 +302,20 @@ public sealed class FfmpegBumperRenderer(
     private static bool IsImage(string path) =>
         ImageExtensions.Contains(Path.GetExtension(path).ToLowerInvariant());
 
-    private static string DrawTitle(
-        string font,
-        string textFile,
-        string color,
-        int size,
-        int y,
-        double fadeStart
-    ) =>
-        $"drawtext=fontfile={font}:textfile={EscapePath(textFile)}:expansion=none"
-        + $":fontcolor={color}:fontsize={size}:x=(w-text_w)/2:y={y}"
-        + ":shadowcolor=black@0.6:shadowx=2:shadowy=2"
-        + $":alpha='{FadeExpr(fadeStart)}'";
-
-    private static string DrawLabel(
-        string font,
-        string textFile,
-        string color,
-        int size,
-        int y,
-        double fadeStart
-    ) =>
-        // Подпись читается из файла (textfile=) с expansion=none — произвольные символы подписи
-        // не могут сломать/инъектировать цепочку filter_complex (см. запись файлов в RenderAsync).
-        $"drawtext=fontfile={font}:textfile={EscapePath(textFile)}:expansion=none"
-        + $":fontcolor={color}:fontsize={size}:x=(w-text_w)/2:y={y}"
-        + ":shadowcolor=black@0.6:shadowx=1:shadowy=1"
-        + $":alpha='{FadeExpr(fadeStart)}'";
+    /// <summary>
+    /// Звено drawtext для одной строки. Текст читается из файла (textfile=) с expansion=none —
+    /// произвольные символы не могут сломать/инъектировать цепочку filter_complex.
+    /// </summary>
+    private static string DrawLine(string font, LayoutLine line)
+    {
+        var shadow = line.Shadow
+            ? ":shadowcolor=black@0.6:shadowx=2:shadowy=2"
+            : ":shadowcolor=black@0.6:shadowx=1:shadowy=1";
+        return $"drawtext=fontfile={font}:textfile={EscapePath(line.File)}:expansion=none"
+            + $":fontcolor={line.Color}:fontsize={line.FontSize}:x=(w-text_w)/2:y={line.Y}"
+            + shadow
+            + $":alpha='{FadeExpr(line.FadeStart)}'";
+    }
 
     private static string FadeExpr(double start) =>
         $"if(lt(t,{Fmt(start)}),0,min(1,(t-{Fmt(start)})/0.5))";

backend/src/TeleWave.Infrastructure/Migrations/20260727182212_SharedJunctionsAndBumperLines.cs

@@ -0,0 +1,465 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace TeleWave.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class SharedJunctionsAndBumperLines : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            // Перенос данных идёт до всех схемных операций: старые колонки ещё на месте.
+            // Текст подблоков превращается в строки, «Сейчас/Далее» — в четыре строки с
+            // плейсхолдерами, свободный текст — в две.
+            migrationBuilder.Sql("""ALTER TABLE "BumperTextVariants" ADD COLUMN "Lines" jsonb;""");
+            migrationBuilder.Sql(
+                """
+                UPDATE "BumperTextVariants" SET "Lines" = CASE WHEN "Kind" = 1 THEN
+                    jsonb_build_array(
+                        jsonb_build_object('Position', 0, 'Style', 0, 'Color', 0, 'Text', COALESCE("Line1", '')),
+                        jsonb_build_object('Position', 1, 'Style', 1, 'Color', 1, 'Text', COALESCE("Line2", ''))
+                    )
+                ELSE
+                    jsonb_build_array(
+                        jsonb_build_object('Position', 0, 'Style', 0, 'Color', 0, 'Text', COALESCE("NowLabel", '')),
+                        jsonb_build_object('Position', 1, 'Style', 1, 'Color', 1, 'Text', '{now.title}'),
+                        jsonb_build_object('Position', 2, 'Style', 0, 'Color', 0, 'Text', COALESCE("NextLabel", '')),
+                        jsonb_build_object('Position', 3, 'Style', 1, 'Color', 1, 'Text', '{next.title}')
+                    )
+                END;
+                """
+            );
+            // Пустые строки выбрасываем и перенумеровываем — иначе в кадре останутся дыры.
+            migrationBuilder.Sql(
+                """
+                UPDATE "BumperTextVariants" v SET "Lines" = f.lines
+                FROM (
+                    SELECT id, COALESCE(jsonb_agg(jsonb_set(elem, '{Position}', to_jsonb(rn - 1)) ORDER BY rn), '[]'::jsonb) AS lines
+                    FROM (
+                        SELECT t."Id" AS id, e.elem AS elem,
+                               row_number() OVER (PARTITION BY t."Id" ORDER BY e.ord) AS rn
+                        FROM "BumperTextVariants" t,
+                             LATERAL jsonb_array_elements(t."Lines") WITH ORDINALITY AS e(elem, ord)
+                        WHERE COALESCE(e.elem->>'Text', '') <> ''
+                    ) x GROUP BY id
+                ) f WHERE v."Id" = f.id;
+                """
+            );
+
+            // Фон: «Сейчас/Далее» показывал постер следующего шоу, свободный текст — фон блока.
+            migrationBuilder.Sql(
+                """ALTER TABLE "BumperTextVariants" ADD COLUMN "Background" integer NOT NULL DEFAULT 0;"""
+            );
+            migrationBuilder.Sql(
+                """UPDATE "BumperTextVariants" SET "Background" = CASE WHEN "Kind" = 1 THEN 0 ELSE 1 END;"""
+            );
+
+            // Шрифт переезжает с канала на блок — у блока он был канальным.
+            migrationBuilder.Sql(
+                """ALTER TABLE "BumperTemplate" ADD COLUMN "Font" integer NOT NULL DEFAULT 0;"""
+            );
+            migrationBuilder.Sql(
+                """UPDATE "BumperTemplate" t SET "Font" = c."BumperFont" FROM "Channels" c WHERE c."Id" = t."ChannelId";"""
+            );
+
+            // Кэш заставок: сигнатура теперь считается по содержимому, а подставленного текста
+            // у старых записей нет. Это кэш — он пересоберётся при ближайшей генерации.
+            migrationBuilder.Sql("""DELETE FROM "BumperAssets";""");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_BumperTemplate_Channels_ChannelId",
+                table: "BumperTemplate"
+            );
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_BumperTextVariants_BumperTemplate_BumperTemplateId",
+                table: "BumperTextVariants"
+            );
+
+            migrationBuilder.DropIndex(
+                name: "IX_JunctionTemplates_ChannelId",
+                table: "JunctionTemplates"
+            );
+
+            migrationBuilder.DropIndex(
+                name: "IX_BumperAssets_FromShowId_ToShowId_Signature",
+                table: "BumperAssets"
+            );
+
+            migrationBuilder.DropPrimaryKey(name: "PK_BumperTemplate", table: "BumperTemplate");
+
+            migrationBuilder.DropIndex(
+                name: "IX_BumperTemplate_ChannelId_Position",
+                table: "BumperTemplate"
+            );
+
+            migrationBuilder.DropColumn(name: "ChannelId", table: "JunctionTemplates");
+
+            migrationBuilder.DropColumn(name: "BumperFont", table: "Channels");
+
+            migrationBuilder.DropColumn(name: "BumperSelection", table: "Channels");
+
+            migrationBuilder.DropColumn(name: "BumpersEnabled", table: "Channels");
+
+            migrationBuilder.DropColumn(name: "Line1", table: "BumperTextVariants");
+
+            migrationBuilder.DropColumn(name: "Line2", table: "BumperTextVariants");
+
+            migrationBuilder.DropColumn(name: "NextLabel", table: "BumperTextVariants");
+
+            migrationBuilder.DropColumn(name: "NowLabel", table: "BumperTextVariants");
+
+            migrationBuilder.DropColumn(name: "ChannelId", table: "BumperAssets");
+
+            migrationBuilder.DropColumn(name: "FromShowId", table: "BumperAssets");
+
+            migrationBuilder.DropColumn(name: "ToShowId", table: "BumperAssets");
+
+            migrationBuilder.DropColumn(name: "ChannelId", table: "BumperTemplate");
+
+            migrationBuilder.RenameTable(name: "BumperTemplate", newName: "BumperTemplates");
+
+            migrationBuilder.DropColumn(name: "Kind", table: "BumperTextVariants");
+
+            migrationBuilder.DropColumn(name: "Position", table: "BumperTemplates");
+
+            migrationBuilder.AddColumn<int>(
+                name: "MaxTotalSeconds",
+                table: "JunctionTemplates",
+                type: "integer",
+                nullable: true
+            );
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "BumperVariantId",
+                table: "JunctionElements",
+                type: "uuid",
+                nullable: true
+            );
+
+            migrationBuilder.AddColumn<string>(
+                name: "ChoiceKey",
+                table: "JunctionElements",
+                type: "character varying(64)",
+                maxLength: 64,
+                nullable: true
+            );
+
+            migrationBuilder.AddColumn<int>(
+                name: "ChoiceWeight",
+                table: "JunctionElements",
+                type: "integer",
+                nullable: false,
+                defaultValue: 1
+            );
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "PosterShowId",
+                table: "BumperAssets",
+                type: "uuid",
+                nullable: true
+            );
+
+            migrationBuilder.AddColumn<string>(
+                name: "RenderedLinesJson",
+                table: "BumperAssets",
+                type: "jsonb",
+                nullable: false,
+                defaultValue: "[]"
+            );
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_BumperTemplates",
+                table: "BumperTemplates",
+                column: "Id"
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_JunctionTemplates_Name",
+                table: "JunctionTemplates",
+                column: "Name"
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_JunctionElements_BumperTemplateId",
+                table: "JunctionElements",
+                column: "BumperTemplateId"
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_JunctionElements_BumperVariantId",
+                table: "JunctionElements",
+                column: "BumperVariantId"
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BumperAssets_MediaAssetId",
+                table: "BumperAssets",
+                column: "MediaAssetId"
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BumperAssets_Signature",
+                table: "BumperAssets",
+                column: "Signature",
+                unique: true
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BumperTemplates_Name",
+                table: "BumperTemplates",
+                column: "Name"
+            );
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_BumperTextVariants_BumperTemplates_BumperTemplateId",
+                table: "BumperTextVariants",
+                column: "BumperTemplateId",
+                principalTable: "BumperTemplates",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade
+            );
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_JunctionElements_BumperTemplates_BumperTemplateId",
+                table: "JunctionElements",
+                column: "BumperTemplateId",
+                principalTable: "BumperTemplates",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Restrict
+            );
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_JunctionElements_BumperTextVariants_BumperVariantId",
+                table: "JunctionElements",
+                column: "BumperVariantId",
+                principalTable: "BumperTextVariants",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Restrict
+            );
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_BumperTextVariants_BumperTemplates_BumperTemplateId",
+                table: "BumperTextVariants"
+            );
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_JunctionElements_BumperTemplates_BumperTemplateId",
+                table: "JunctionElements"
+            );
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_JunctionElements_BumperTextVariants_BumperVariantId",
+                table: "JunctionElements"
+            );
+
+            migrationBuilder.DropIndex(
+                name: "IX_JunctionTemplates_Name",
+                table: "JunctionTemplates"
+            );
+
+            migrationBuilder.DropIndex(
+                name: "IX_JunctionElements_BumperTemplateId",
+                table: "JunctionElements"
+            );
+
+            migrationBuilder.DropIndex(
+                name: "IX_JunctionElements_BumperVariantId",
+                table: "JunctionElements"
+            );
+
+            migrationBuilder.DropIndex(name: "IX_BumperAssets_MediaAssetId", table: "BumperAssets");
+
+            migrationBuilder.DropIndex(name: "IX_BumperAssets_Signature", table: "BumperAssets");
+
+            migrationBuilder.DropPrimaryKey(name: "PK_BumperTemplates", table: "BumperTemplates");
+
+            migrationBuilder.DropIndex(name: "IX_BumperTemplates_Name", table: "BumperTemplates");
+
+            migrationBuilder.DropColumn(name: "MaxTotalSeconds", table: "JunctionTemplates");
+
+            migrationBuilder.DropColumn(name: "BumperVariantId", table: "JunctionElements");
+
+            migrationBuilder.DropColumn(name: "ChoiceKey", table: "JunctionElements");
+
+            migrationBuilder.DropColumn(name: "ChoiceWeight", table: "JunctionElements");
+
+            migrationBuilder.DropColumn(name: "Lines", table: "BumperTextVariants");
+
+            migrationBuilder.DropColumn(name: "PosterShowId", table: "BumperAssets");
+
+            migrationBuilder.DropColumn(name: "RenderedLinesJson", table: "BumperAssets");
+
+            migrationBuilder.RenameTable(name: "BumperTemplates", newName: "BumperTemplate");
+
+            migrationBuilder.DropColumn(name: "Background", table: "BumperTextVariants");
+
+            migrationBuilder.AddColumn<int>(
+                name: "Kind",
+                table: "BumperTextVariants",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0
+            );
+
+            migrationBuilder.DropColumn(name: "Font", table: "BumperTemplate");
+
+            migrationBuilder.AddColumn<int>(
+                name: "Position",
+                table: "BumperTemplate",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0
+            );
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "ChannelId",
+                table: "JunctionTemplates",
+                type: "uuid",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000")
+            );
+
+            migrationBuilder.AddColumn<int>(
+                name: "BumperFont",
+                table: "Channels",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0
+            );
+
+            migrationBuilder.AddColumn<int>(
+                name: "BumperSelection",
+                table: "Channels",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0
+            );
+
+            migrationBuilder.AddColumn<bool>(
+                name: "BumpersEnabled",
+                table: "Channels",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false
+            );
+
+            migrationBuilder.AddColumn<string>(
+                name: "Line1",
+                table: "BumperTextVariants",
+                type: "character varying(120)",
+                maxLength: 120,
+                nullable: false,
+                defaultValue: ""
+            );
+
+            migrationBuilder.AddColumn<string>(
+                name: "Line2",
+                table: "BumperTextVariants",
+                type: "character varying(120)",
+                maxLength: 120,
+                nullable: false,
+                defaultValue: ""
+            );
+
+            migrationBuilder.AddColumn<string>(
+                name: "NextLabel",
+                table: "BumperTextVariants",
+                type: "character varying(64)",
+                maxLength: 64,
+                nullable: false,
+                defaultValue: ""
+            );
+
+            migrationBuilder.AddColumn<string>(
+                name: "NowLabel",
+                table: "BumperTextVariants",
+                type: "character varying(64)",
+                maxLength: 64,
+                nullable: false,
+                defaultValue: ""
+            );
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "ChannelId",
+                table: "BumperAssets",
+                type: "uuid",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000")
+            );
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "FromShowId",
+                table: "BumperAssets",
+                type: "uuid",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000")
+            );
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "ToShowId",
+                table: "BumperAssets",
+                type: "uuid",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000")
+            );
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "ChannelId",
+                table: "BumperTemplate",
+                type: "uuid",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000")
+            );
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_BumperTemplate",
+                table: "BumperTemplate",
+                column: "Id"
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_JunctionTemplates_ChannelId",
+                table: "JunctionTemplates",
+                column: "ChannelId"
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BumperAssets_FromShowId_ToShowId_Signature",
+                table: "BumperAssets",
+                columns: new[] { "FromShowId", "ToShowId", "Signature" }
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BumperTemplate_ChannelId_Position",
+                table: "BumperTemplate",
+                columns: new[] { "ChannelId", "Position" }
+            );
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_BumperTemplate_Channels_ChannelId",
+                table: "BumperTemplate",
+                column: "ChannelId",
+                principalTable: "Channels",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade
+            );
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_BumperTextVariants_BumperTemplate_BumperTemplateId",
+                table: "BumperTextVariants",
+                column: "BumperTemplateId",
+                principalTable: "BumperTemplate",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade
+            );
+        }
+    }
+}

backend/src/TeleWave.Infrastructure/Migrations/AppDbContextModelSnapshot.cs

@@ -164,18 +164,19 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Property<Guid>("Id")
                         .HasColumnType("uuid");
 
-                    b.Property<Guid>("ChannelId")
-                        .HasColumnType("uuid");
-
                     b.Property<DateTimeOffset>("CreatedAt")
                         .HasColumnType("timestamp with time zone");
 
-                    b.Property<Guid>("FromShowId")
-                        .HasColumnType("uuid");
-
                     b.Property<Guid>("MediaAssetId")
                         .HasColumnType("uuid");
 
+                    b.Property<Guid?>("PosterShowId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("RenderedLinesJson")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
                     b.Property<string>("Signature")
                         .IsRequired()
                         .HasMaxLength(128)
@@ -184,15 +185,15 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Property<Guid>("TemplateId")
                         .HasColumnType("uuid");
 
-                    b.Property<Guid>("ToShowId")
-                        .HasColumnType("uuid");
-
                     b.Property<Guid>("VariantId")
                         .HasColumnType("uuid");
 
                     b.HasKey("Id");
 
-                    b.HasIndex("FromShowId", "ToShowId", "Signature");
+                    b.HasIndex("MediaAssetId");
+
+                    b.HasIndex("Signature")
+                        .IsUnique();
 
                     b.ToTable("BumperAssets");
                 });
@@ -227,20 +228,17 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Property<Guid?>("BackgroundImageId")
                         .HasColumnType("uuid");
 
-                    b.Property<Guid>("ChannelId")
-                        .HasColumnType("uuid");
-
                     b.Property<DateTimeOffset>("CreatedAt")
                         .HasColumnType("timestamp with time zone");
 
+                    b.Property<int>("Font")
+                        .HasColumnType("integer");
+
                     b.Property<string>("Name")
                         .IsRequired()
                         .HasMaxLength(64)
                         .HasColumnType("character varying(64)");
 
-                    b.Property<int>("Position")
-                        .HasColumnType("integer");
-
                     b.Property<int>("Revision")
                         .HasColumnType("integer");
 
@@ -251,9 +249,9 @@ namespace TeleWave.Infrastructure.Migrations
 
                     b.HasKey("Id");
 
-                    b.HasIndex("ChannelId", "Position");
+                    b.HasIndex("Name");
 
-                    b.ToTable("BumperTemplate");
+                    b.ToTable("BumperTemplates");
                 });
 
             modelBuilder.Entity("TeleWave.Domain.Broadcast.BumperTextVariant", b =>
@@ -261,40 +259,20 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Property<Guid>("Id")
                         .HasColumnType("uuid");
 
+                    b.Property<int>("Background")
+                        .HasColumnType("integer");
+
                     b.Property<Guid>("BumperTemplateId")
                         .HasColumnType("uuid");
 
                     b.Property<DateTimeOffset>("CreatedAt")
                         .HasColumnType("timestamp with time zone");
 
-                    b.Property<int>("Kind")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("Line1")
-                        .IsRequired()
-                        .HasMaxLength(120)
-                        .HasColumnType("character varying(120)");
-
-                    b.Property<string>("Line2")
-                        .IsRequired()
-                        .HasMaxLength(120)
-                        .HasColumnType("character varying(120)");
-
                     b.Property<string>("Name")
                         .IsRequired()
                         .HasMaxLength(64)
                         .HasColumnType("character varying(64)");
 
-                    b.Property<string>("NextLabel")
-                        .IsRequired()
-                        .HasMaxLength(64)
-                        .HasColumnType("character varying(64)");
-
-                    b.Property<string>("NowLabel")
-                        .IsRequired()
-                        .HasMaxLength(64)
-                        .HasColumnType("character varying(64)");
-
                     b.Property<int>("Position")
                         .HasColumnType("integer");
 
@@ -321,15 +299,6 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Property<double>("AnalogFilterStrength")
                         .HasColumnType("double precision");
 
-                    b.Property<int>("BumperFont")
-                        .HasColumnType("integer");
-
-                    b.Property<int>("BumperSelection")
-                        .HasColumnType("integer");
-
-                    b.Property<bool>("BumpersEnabled")
-                        .HasColumnType("boolean");
-
                     b.Property<DateTimeOffset>("CreatedAt")
                         .HasColumnType("timestamp with time zone");
 
@@ -886,6 +855,18 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Property<Guid?>("BumperTemplateId")
                         .HasColumnType("uuid");
 
+                    b.Property<Guid?>("BumperVariantId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ChoiceKey")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("ChoiceWeight")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer")
+                        .HasDefaultValue(1);
+
                     b.Property<string>("ConditionsJson")
                         .HasColumnType("jsonb");
 
@@ -906,6 +887,10 @@ namespace TeleWave.Infrastructure.Migrations
 
                     b.HasKey("Id");
 
+                    b.HasIndex("BumperTemplateId");
+
+                    b.HasIndex("BumperVariantId");
+
                     b.HasIndex("GroupId");
 
                     b.HasIndex("JunctionTemplateId", "Position");
@@ -918,12 +903,12 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Property<Guid>("Id")
                         .HasColumnType("uuid");
 
-                    b.Property<Guid>("ChannelId")
-                        .HasColumnType("uuid");
-
                     b.Property<DateTimeOffset>("CreatedAt")
                         .HasColumnType("timestamp with time zone");
 
+                    b.Property<int?>("MaxTotalSeconds")
+                        .HasColumnType("integer");
+
                     b.Property<string>("Name")
                         .IsRequired()
                         .HasMaxLength(128)
@@ -931,7 +916,7 @@ namespace TeleWave.Infrastructure.Migrations
 
                     b.HasKey("Id");
 
-                    b.HasIndex("ChannelId");
+                    b.HasIndex("Name");
 
                     b.ToTable("JunctionTemplates");
                 });
@@ -1234,15 +1219,6 @@ namespace TeleWave.Infrastructure.Migrations
                         .IsRequired();
                 });
 
-            modelBuilder.Entity("TeleWave.Domain.Broadcast.BumperTemplate", b =>
-                {
-                    b.HasOne("TeleWave.Domain.Broadcast.Channel", null)
-                        .WithMany("BumperTemplates")
-                        .HasForeignKey("ChannelId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
             modelBuilder.Entity("TeleWave.Domain.Broadcast.BumperTextVariant", b =>
                 {
                     b.HasOne("TeleWave.Domain.Broadcast.BumperTemplate", null)
@@ -1250,6 +1226,37 @@ namespace TeleWave.Infrastructure.Migrations
                         .HasForeignKey("BumperTemplateId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
+
+                    b.OwnsMany("TeleWave.Domain.Broadcast.BumperLine", "Lines", b1 =>
+                        {
+                            b1.Property<Guid>("BumperTextVariantId");
+
+                            b1.Property<int>("__synthesizedOrdinal")
+                                .ValueGeneratedOnAdd();
+
+                            b1.Property<int>("Color");
+
+                            b1.Property<int>("Position");
+
+                            b1.Property<int>("Style");
+
+                            b1.Property<string>("Text")
+                                .IsRequired()
+                                .HasMaxLength(120);
+
+                            b1.HasKey("BumperTextVariantId", "__synthesizedOrdinal");
+
+                            b1.ToTable("BumperTextVariants");
+
+                            b1
+                                .ToJson("Lines")
+                                .HasColumnType("jsonb");
+
+                            b1.WithOwner()
+                                .HasForeignKey("BumperTextVariantId");
+                        });
+
+                    b.Navigation("Lines");
                 });
 
             modelBuilder.Entity("TeleWave.Domain.Library.CollectionItem", b =>
@@ -1320,6 +1327,16 @@ namespace TeleWave.Infrastructure.Migrations
 
             modelBuilder.Entity("TeleWave.Domain.Programming.JunctionElement", b =>
                 {
+                    b.HasOne("TeleWave.Domain.Broadcast.BumperTemplate", null)
+                        .WithMany()
+                        .HasForeignKey("BumperTemplateId")
+                        .OnDelete(DeleteBehavior.Restrict);
+
+                    b.HasOne("TeleWave.Domain.Broadcast.BumperTextVariant", null)
+                        .WithMany()
+                        .HasForeignKey("BumperVariantId")
+                        .OnDelete(DeleteBehavior.Restrict);
+
                     b.HasOne("TeleWave.Domain.Programming.Group", null)
                         .WithMany()
                         .HasForeignKey("GroupId")
@@ -1360,11 +1377,6 @@ namespace TeleWave.Infrastructure.Migrations
                     b.Navigation("Variants");
                 });
 
-            modelBuilder.Entity("TeleWave.Domain.Broadcast.Channel", b =>
-                {
-                    b.Navigation("BumperTemplates");
-                });
-
             modelBuilder.Entity("TeleWave.Domain.Library.Collection", b =>
                 {
                     b.Navigation("Items");

backend/src/TeleWave.Infrastructure/Persistence/AppDbContext.cs

@@ -40,6 +40,7 @@ public class AppDbContext(DbContextOptions<AppDbContext> options)
     public DbSet<JunctionElement> JunctionElements => Set<JunctionElement>();
     public DbSet<Channel> Channels => Set<Channel>();
     public DbSet<ScheduleEntry> ScheduleEntries => Set<ScheduleEntry>();
+    public DbSet<BumperTemplate> BumperTemplates => Set<BumperTemplate>();
     public DbSet<BumperTextVariant> BumperTextVariants => Set<BumperTextVariant>();
     public DbSet<BumperAsset> BumperAssets => Set<BumperAsset>();
     public DbSet<AppSetting> AppSettings => Set<AppSetting>();

backend/src/TeleWave.Infrastructure/Persistence/Configurations/BumperAssetConfiguration.cs

@@ -9,13 +9,10 @@ public class BumperAssetConfiguration : IEntityTypeConfiguration<BumperAsset>
     public void Configure(EntityTypeBuilder<BumperAsset> builder)
     {
         builder.Property(x => x.Signature).IsRequired().HasMaxLength(128);
+        builder.Property(x => x.RenderedLinesJson).HasColumnType("jsonb");
 
-        // Кэш-ключ заставки: одна отрендеренная пара «из→в» при данной сигнатуре оформления.
-        builder.HasIndex(x => new
-        {
-            x.FromShowId,
-            x.ToShowId,
-            x.Signature,
-        });
+        // Кэш-ключ — сигнатура содержимого: одинаковая заставка на трёх каналах рендерится один раз.
+        builder.HasIndex(x => x.Signature).IsUnique();
+        builder.HasIndex(x => x.MediaAssetId);
     }
 }

backend/src/TeleWave.Infrastructure/Persistence/Configurations/ChannelConfiguration.cs

@@ -15,13 +15,6 @@ public class ChannelConfiguration : IEntityTypeConfiguration<Channel>
 
         // Номер канала уникален среди заданных: переключение вверх-вниз по номерам иначе неоднозначно.
         builder.HasIndex(x => x.Number).IsUnique().HasFilter("\"Number\" IS NOT NULL");
-
-        builder
-            .HasMany(x => x.BumperTemplates)
-            .WithOne()
-            .HasForeignKey(t => t.ChannelId)
-            .OnDelete(DeleteBehavior.Cascade);
-        builder.Navigation(x => x.BumperTemplates).UsePropertyAccessMode(PropertyAccessMode.Field);
     }
 }
 
@@ -29,7 +22,7 @@ public class BumperTemplateConfiguration : IEntityTypeConfiguration<BumperTempla
 {
     public void Configure(EntityTypeBuilder<BumperTemplate> builder)
     {
-        builder.HasIndex(x => new { x.ChannelId, x.Position });
+        builder.HasIndex(x => x.Name);
         builder.Property(x => x.Name).IsRequired().HasMaxLength(64);
         builder.Property(x => x.BackgroundColor).IsRequired().HasMaxLength(32);
         builder.Property(x => x.BackgroundColor2).IsRequired().HasMaxLength(32);
@@ -52,10 +45,18 @@ public class BumperTextVariantConfiguration : IEntityTypeConfiguration<BumperTex
     {
         builder.HasIndex(x => new { x.BumperTemplateId, x.Position });
         builder.Property(x => x.Name).IsRequired().HasMaxLength(64);
-        builder.Property(x => x.NowLabel).IsRequired().HasMaxLength(64);
-        builder.Property(x => x.NextLabel).IsRequired().HasMaxLength(64);
-        builder.Property(x => x.Line1).IsRequired().HasMaxLength(120);
-        builder.Property(x => x.Line2).IsRequired().HasMaxLength(120);
         builder.Property(x => x.Weight).HasDefaultValue(BumperTextVariant.DefaultWeight);
+
+        // Строки — одной jsonb-колонкой: они всегда читаются и пишутся вместе с подблоком,
+        // отдельная таблица дала бы join и порядковые правки там, где список заменяется целиком.
+        builder.OwnsMany(
+            x => x.Lines,
+            lines =>
+            {
+                lines.ToJson();
+                lines.Property(l => l.Text).HasMaxLength(120);
+            }
+        );
+        builder.Navigation(x => x.Lines).UsePropertyAccessMode(PropertyAccessMode.Field);
     }
 }

backend/src/TeleWave.Infrastructure/Persistence/Configurations/JunctionTemplateConfiguration.cs

@@ -1,6 +1,7 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Metadata;
 using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using TeleWave.Domain.Broadcast;
 using TeleWave.Domain.Programming;
 
 namespace TeleWave.Infrastructure.Persistence.Configurations;
@@ -10,7 +11,7 @@ public class JunctionTemplateConfiguration : IEntityTypeConfiguration<JunctionTe
     public void Configure(EntityTypeBuilder<JunctionTemplate> builder)
     {
         builder.Property(x => x.Name).IsRequired().HasMaxLength(128);
-        builder.HasIndex(x => x.ChannelId);
+        builder.HasIndex(x => x.Name);
 
         builder
             .HasMany(x => x.Elements)
@@ -27,6 +28,8 @@ public class JunctionElementConfiguration : IEntityTypeConfiguration<JunctionEle
     {
         builder.HasIndex(x => new { x.JunctionTemplateId, x.Position });
         builder.Property(x => x.ConditionsJson).HasColumnType("jsonb");
+        builder.Property(x => x.ChoiceKey).HasMaxLength(64);
+        builder.Property(x => x.ChoiceWeight).HasDefaultValue(JunctionElement.DefaultChoiceWeight);
 
         // Группа не удаляется, пока на неё ссылается врезка: иначе стык молча перестал бы работать.
         builder
@@ -34,5 +37,19 @@ public class JunctionElementConfiguration : IEntityTypeConfiguration<JunctionEle
             .WithMany()
             .HasForeignKey(x => x.GroupId)
             .OnDelete(DeleteBehavior.Restrict);
+
+        // То же и с заставкой: блок общий, и удаление используемого выключило бы заставки в чужих
+        // каналах. Проверку дублирует хендлер — ради внятной ошибки вместо нарушения ссылки.
+        builder
+            .HasOne<BumperTemplate>()
+            .WithMany()
+            .HasForeignKey(x => x.BumperTemplateId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder
+            .HasOne<BumperTextVariant>()
+            .WithMany()
+            .HasForeignKey(x => x.BumperVariantId)
+            .OnDelete(DeleteBehavior.Restrict);
     }
 }