# 74 — Garden integrations (calendar + lists)

## Goal

Wire the garden module into the two existing coordination modules:

1. **Calendar**: schedule a plant care event on the household calendar from within a care schedule row.
2. **Lists**: push all overdue care tasks to the household task list in one tap.

## Depends on

- 73 (care schedules + overdue queries)
- 10 (calendar module — `createEvent`)
- 11 (lists module — `addItem`)

## Scope

### Calendar integration

#### Server action (`src/modules/garden/server/actions.ts`)

`scheduleOnCalendar(input: { scheduleId, calendarId, reminderMinutesBefore? })`:

- Look up the schedule + plant; household check.
- `startAt` = `next_due_at` (reject with user-facing error if null).
- `endAt` = `startAt + 30 min`; `allDay = false`.
- Title convention: `"Water ${plant.name}"` / `"Fertilize ${plant.name}"` / `"Repot ${plant.name}"` / `"${careType} — ${plant.name}"` for other types.
- Notes: `"Scheduled from garden. Next due: ${next_due_at.toLocaleDateString()}"`.
- Call `createCalendarEvent(...)` from the bridge below.

#### Bridge file (`src/modules/garden/server/calendar-bridge.ts`)

```typescript
export { createEvent as createCalendarEvent } from "@/modules/calendar/server/actions";
export { listCalendars } from "@/modules/calendar/server/queries";
```

This keeps the cross-module dependency explicit and swappable without touching `_core`.

#### UI

In `care-schedule-editor.tsx`, add an "Add to calendar" button per schedule row. Clicking it opens a popover with: calendar select (from `listCalendars`) + optional reminder-minutes input + "Schedule" button. Show a success toast linking to `/calendar`.

---

### Lists integration

#### Server action (`src/modules/garden/server/actions.ts`)

`pushOverdueToTaskList(): Promise<{ added: number }>`:

- Call `getOverduePlants(householdId)`.
- Find the household default task list via the bridge below.
- For each overdue `(plant, schedule)` pair insert a list item:
  - `text`: same title convention as the calendar integration.
  - `notes`: `"Overdue by ${daysOverdue} day(s)"`.
  - `dueAt`: `schedule.next_due_at`.
- Skip pairs where an identical `text` item already exists in the list (prevent duplicates).
- Return `{ added: N }`.

#### Bridge file (`src/modules/garden/server/lists-bridge.ts`)

```typescript
export { addItem as addListItem } from "@/modules/lists/server/actions";
export { listLists } from "@/modules/lists/server/queries";
```

#### UI

Add an "Add overdue to task list" button to the `/garden` page header (available before the dashboard widget in task 75). Shows a toast: "Added N tasks to your task list." If N = 0, toast says "No overdue care tasks."

## Out of scope

- Bi-directional sync (checking off a list item does not mark the plant as cared-for).
- Recurring calendar events (garden creates single events only).

## Acceptance criteria

- [ ] "Add to calendar" creates a calendar event visible at `/calendar` with the correct title.
- [ ] "Add overdue to task list" pushes one item per overdue schedule, skips existing duplicates.
- [ ] Items appear in the task list at `/lists`.
- [ ] Both actions enforce household scope.
- [ ] Both are graceful no-ops when nothing is overdue / due.