fix: remove default-run entry from Cargo.toml
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# Scheduling V2 — Design Spec
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## Context
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The current scheduler is a 48h rolling window with a flat block list per channel. This works as MVP but has two major gaps for everyday use:
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1. **No weekly patterns** — users can't say "Monday runs X, weekends run Y"; all blocks repeat identically every day.
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2. **No history or recovery** — overwriting a channel config loses the previous setup forever; a bug that resets a sequential series (e.g. Sopranos resets from S3E4 to S1E1) has no recovery path.
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This spec covers two features: **weekly scheduling** and **schedule history**.
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---
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## Feature 1: Weekly Scheduling (7-day grid)
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### Data model
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`ScheduleConfig` changes from a flat block list to a day-keyed map:
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```rust
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// BEFORE
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pub struct ScheduleConfig {
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pub blocks: Vec<ProgrammingBlock>,
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}
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// AFTER
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pub struct ScheduleConfig {
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pub day_blocks: HashMap<Weekday, Vec<ProgrammingBlock>>,
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}
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pub enum Weekday {
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Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday,
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}
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```
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`ProgrammingBlock` is otherwise unchanged. Block IDs remain UUIDs; each day has its own independent Vec, so the same "show" on Mon and Wed has two separate block entries (different IDs, independent continuity tracking).
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### Migration (transparent, zero-downtime)
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Existing `channels.schedule_config` stores `{"blocks":[...]}`. Use `#[serde(untagged)]` deserialization:
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```rust
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#[serde(untagged)]
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enum ScheduleConfigCompat {
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V2(ScheduleConfig), // {"day_blocks": {"monday": [...], ...}}
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V1(OldScheduleConfig), // {"blocks": [...]}
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}
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```
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V1→V2 conversion: clone the blocks Vec into all 7 days. The first `PUT /channels/:id` after deploy saves V2 format. Channels never touched continue to deserialize via V1 path indefinitely.
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**Edge case**: if a payload has both `blocks` and `day_blocks` keys (e.g. partially migrated export), `#[serde(untagged)]` tries V2 first and succeeds — `day_blocks` is used and `blocks` is silently ignored. This is acceptable; the alternative (error on ambiguity) would break more use cases.
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### ScheduleConfig helper methods
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Three methods on `ScheduleConfig` must be updated:
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- **`find_block_at(weekday: Weekday, time: NaiveTime) -> Option<&ProgrammingBlock>`** — searches `day_blocks[weekday]` for the block whose window contains `time`.
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- **`next_block_start_after(weekday: Weekday, time: NaiveTime) -> Option<NaiveTime>`** — searches that day's vec; returns `None` if no block starts after `time` on that day (day-rollover is the caller's responsibility).
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- **`earliest_block_start() -> Option<NaiveTime>`** — **iterates all days, returns the global earliest start time across the entire week**. This is the form needed by the background scheduler (which needs to know when any content starts). Empty day = no contribution; all days empty = `None`.
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**Call-site update pattern for `broadcast.rs` (lines 64, 171):**
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```rust
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// derive weekday from slot start_at in channel timezone
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let tz: chrono_tz::Tz = channel.timezone.parse().unwrap_or(chrono_tz::UTC);
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let local_dt = slot.start_at.with_timezone(&tz);
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let weekday = Weekday::from_chrono(local_dt.weekday()); // new From impl
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let block = channel.schedule_config.find_block_at(weekday, local_dt.time());
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```
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The same derivation applies to `dto.rs` (`ScheduledSlotResponse::with_block_access`).
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### MCP crate
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`mcp/src/tools/channels.rs` manipulates `schedule_config.blocks` directly. After V2:
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- The MCP `add_block` tool must accept a `day: Weekday` parameter (required). It pushes the new block to `day_blocks[day]`.
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- The MCP `remove_block` tool must iterate all days' vecs (remove by block ID across all days, since block IDs are unique per entry).
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- `mcp/src/server.rs` `set_schedule_config` must accept a `day_blocks` map. The old `blocks_json` string parameter is replaced with `day_blocks_json: String` (JSON object keyed by weekday name).
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These are breaking changes to the MCP API — acceptable since MCP tools are internal/developer-facing.
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### Generation engine
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- Window: `valid_from + 7 days` (was 48h). Update `GeneratedSchedule` doc comment accordingly.
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- Day iteration: already walks calendar days; now walks 7 days, looks up `day_blocks[weekday]` for each day.
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- **Empty day**: if `day_blocks[weekday]` is empty or the key is absent, that day produces no slots — valid, not an error.
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- Continuity (`find_last_slot_per_block`): unchanged.
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### Files changed (backend)
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- `domain/src/value_objects.rs` — add `Weekday` enum with `From<chrono::Weekday>` impl
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- `domain/src/entities.rs` — `ScheduleConfig`, `OldScheduleConfig` compat struct, update helper method signatures, update `GeneratedSchedule` doc comment
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- `domain/src/services.rs` — 7-day window, `day_blocks[weekday]` lookup per day
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- `api/src/routes/channels/broadcast.rs` — update block lookups at lines 64 and 171 using weekday-derivation pattern above
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- `api/src/dto.rs` — update `ScheduledSlotResponse::with_block_access` block lookup
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- `mcp/src/tools/channels.rs` — `add_block` accepts `day` param; `remove_block` iterates all days
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- `mcp/src/server.rs` — replace `blocks_json` with `day_blocks_json`
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---
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## Feature 2: Schedule History
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### 2a. Config version history
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Every `PUT /channels/:id` auto-snapshots the previous config before overwriting. Users can pin named checkpoints and restore any version.
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**New DB migration:**
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```sql
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CREATE TABLE channel_config_snapshots (
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id TEXT PRIMARY KEY,
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channel_id TEXT NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
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config_json TEXT NOT NULL,
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version_num INTEGER NOT NULL,
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label TEXT, -- NULL = auto-saved, non-NULL = pinned
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created_at TEXT NOT NULL,
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UNIQUE (channel_id, version_num)
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);
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CREATE INDEX idx_config_snapshots_channel ON channel_config_snapshots(channel_id, version_num DESC);
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```
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**`version_num` assignment**: computed inside the write transaction as `SELECT COALESCE(MAX(version_num), 0) + 1 FROM channel_config_snapshots WHERE channel_id = ?`. The transaction serializes concurrent writes naturally in SQLite (single writer). The `UNIQUE` constraint is a safety net only — no 409 is exposed to the client; the server retries within the transaction if needed (in practice impossible with SQLite's serialized writes).
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**New API endpoints (all require auth + channel ownership — same auth middleware as existing channel routes):**
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```
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GET /channels/:id/config/history
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→ [{id, version_num, label, created_at}] -- channel_id omitted (implicit from URL)
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PATCH /channels/:id/config/history/:snap_id
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body: {"label": "Before S3 switchover"}
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→ 404 if snap_id not found or not owned by this channel
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→ 200 {id, version_num, label, created_at}
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POST /channels/:id/config/history/:snap_id/restore
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→ snapshots current config first, then replaces channel config with target snapshot
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→ 404 if snap_id not found or not owned by this channel
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→ 200 {channel}
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```
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**Domain + infra changes:**
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- `ChannelConfigSnapshot` entity (fields: id, channel_id, config, version_num, label, created_at)
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- Extend `ChannelRepository` port: `save_config_snapshot`, `list_config_snapshots`, `get_config_snapshot`, `patch_config_snapshot_label`
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- `ChannelService::update_channel` calls `save_config_snapshot` before writing new config
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**Files changed (backend):**
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- `domain/src/entities.rs` — add `ChannelConfigSnapshot`
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- `domain/src/repositories.rs` — extend `ChannelRepository` port
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- `infra/src/channel_repo.rs` — implement snapshot methods
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- `migrations_sqlite/YYYYMMDD_add_config_snapshots.sql`
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- `api/src/routes/channels.rs` — new history endpoints + DTOs for snapshot responses
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### 2b. Generated schedule audit log
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**Ownership check**: `get_schedule_by_id(channel_id, gen_id)` queries `generated_schedules WHERE id = :gen_id AND channel_id = :channel_id` — the `channel_id` column is the join, so no separate channel lookup is needed.
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**New API endpoints (all require auth + channel ownership):**
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```
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GET /channels/:id/schedule/history
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→ [{id, generation, valid_from, valid_until}] ordered by generation DESC
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GET /channels/:id/schedule/history/:gen_id
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→ full GeneratedSchedule with slots
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→ 404 if gen_id not found or channel_id mismatch
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POST /channels/:id/schedule/history/:gen_id/rollback
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→ 404 if gen_id not found or channel_id mismatch
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→ explicit two-step delete (no DB-level cascade from playback_records to generated_schedules):
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1. DELETE FROM playback_records WHERE channel_id = ? AND generation > :target_generation
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2. DELETE FROM generated_schedules WHERE channel_id = ? AND generation > :target_generation
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(scheduled_slots cascade via FK from generated_schedules)
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→ calls generate_schedule from now
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→ 200 {new_schedule}
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```
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**Repository changes:**
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- `list_schedule_history(channel_id)` — headers only
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- `get_schedule_by_id(channel_id, gen_id)` — full with slots
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- `delete_schedules_after(channel_id, generation_num)` — two-step explicit delete as above
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**Files changed (backend):**
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- `domain/src/repositories.rs` — extend `ScheduleRepository`
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- `infra/src/schedule_repo.rs` — implement list, get-by-id, delete-after
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- `api/src/routes/channels.rs` — new history and rollback endpoints
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---
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## Frontend
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### Weekly grid editor (`edit-channel-sheet.tsx`)
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Replace the flat block list with a tabbed weekly grid:
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- 7 day tabs (Mon–Sun), each showing that day's block list
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- Blocks within a day: same card UI as current (drag to reorder, edit, delete)
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- "Copy to →" dropdown per tab: duplicates block entries with new UUIDs into target day(s)
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- "+ Add block for [Day]" button per tab
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- "🕐 Config history" button in sheet footer → opens config history panel
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### Config history panel (`config-history-sheet.tsx` — new)
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- List of snapshots: version_num, timestamp, label (if pinned)
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- Current version highlighted
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- Pin button on current version (opens label input)
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- Restore button on any past version (confirm dialog)
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### Schedule audit log (`schedule-history-dialog.tsx` — new)
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- Lists past generations: gen#, date range
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- "Rollback to here" button with confirm dialog
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### Types (`lib/types.ts`)
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```ts
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type Weekday = 'monday' | 'tuesday' | 'wednesday' | 'thursday' | 'friday' | 'saturday' | 'sunday'
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const WEEKDAYS: Weekday[] = ['monday','tuesday','wednesday','thursday','friday','saturday','sunday']
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interface ScheduleConfig {
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day_blocks: Record<Weekday, ProgrammingBlock[]>
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}
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interface ConfigSnapshot {
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id: string
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version_num: number
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label: string | null
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created_at: string
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// channel_id intentionally omitted — always accessed via /channels/:id/config/history
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}
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interface ScheduleHistoryEntry {
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id: string
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generation: number
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valid_from: string
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valid_until: string
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}
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```
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### Zod schema (`lib/schemas.ts`)
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```ts
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const weekdaySchema = z.enum(['monday','tuesday','wednesday','thursday','friday','saturday','sunday'])
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// replace blocks: z.array(blockSchema) with:
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day_blocks: z.record(weekdaySchema, z.array(blockSchema)).default(
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() => Object.fromEntries(WEEKDAYS.map(d => [d, []])) as Record<Weekday, ProgrammingBlock[]>
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)
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// A missing day key is valid (treated as empty). The default initializes all days to [].
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```
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### Channel export (`lib/channel-export.ts`)
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Export format after V2: `day_blocks` map as-is (no flattening). The export JSON shape mirrors `ScheduleConfig` directly. Re-import reads via the same `ScheduleConfigCompat` deserialization path, so V1 exports remain importable indefinitely.
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### New hooks (`hooks/use-channels.ts`)
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- `useConfigHistory(channelId)`
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- `useRestoreConfig()`
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- `usePinSnapshot()`
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- `useScheduleHistory(channelId)`
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- `useScheduleGeneration(channelId, genId)` (lazy, for detail view)
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- `useRollbackSchedule()`
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### Files changed (frontend)
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- `lib/types.ts`
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- `lib/schemas.ts`
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- `lib/channel-export.ts`
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- `hooks/use-channels.ts`
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- `dashboard/components/edit-channel-sheet.tsx`
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- `dashboard/components/config-history-sheet.tsx` (new)
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- `dashboard/components/schedule-history-dialog.tsx` (new)
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- `app/(main)/dashboard/page.tsx` — wire new dialog triggers
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---
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## Verification
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| Scenario | Expected |
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| Load channel with old `{blocks:[...]}` config | Blocks appear on all 7 day tabs |
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| `PUT /channels/:id` on old-format channel | Config saved as V2 `{day_blocks:{...}}`; snapshot v1 created |
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| Channel with Mon+Sat blocks only → generate | Slots only on Mondays and Saturdays in 7-day window |
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| Day with empty block list | No slots that day, no error |
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| `PUT /channels/:id` twice | `GET /config/history` returns 2 entries with incrementing version_num |
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| Pin snapshot | Label persists in history list |
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| Restore snapshot | Config reverts; new snapshot created at top of history |
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| `GET /schedule/history/:bad_id` | 404 |
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| Generate 3 schedules → rollback to gen#1 | gen#2+3 deleted (schedules + playback_records); new generation resumes from gen#1 continuity |
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| Sequential block at S4E2 → rollback → regenerate | New schedule starts at correct episode |
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| Payload with both `blocks` and `day_blocks` keys | `day_blocks` used, `blocks` silently ignored |
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| V1 export file re-imported after V2 deploy | Deserializes correctly via compat path |
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@@ -2,7 +2,6 @@
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name = "mcp"
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version = "0.1.0"
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edition = "2024"
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default-run = "mcp"
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[features]
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default = ["sqlite", "jellyfin"]
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