# Data Model: Migration Dashboard Grid

## Entities

### Dashboard
Represents a Superset dashboard with extended metadata for migration selection.

| Field | Type | Description | Source |
|-------|------|-------------|--------|
| `id` | `int` | Unique identifier | Superset API |
| `title` | `string` | Display name of the dashboard | Superset API (`dashboard_title`) |
| `changed_on` | `datetime` | Last modification timestamp (UTC) | Superset API (`changed_on_utc`) |
| `published` | `boolean` | Publication status (True=Published, False=Draft) | Superset API |
| `url` | `string` | Link to the dashboard (optional, for preview) | Superset API (`url`) |

### DashboardSelection
State of the user's selection in the grid.

| Field | Type | Description |
|-------|------|-------------|
| `selected_ids` | `Set<int>` | IDs of selected dashboards |
| `is_all_selected` | `boolean` | Helper for "Select All" logic (optional) |

## Component State (Frontend)

### DashboardGrid
State managed within the Svelte component.

| State | Type | Description |
|-------|------|-------------|
| `dashboards` | `Array<Dashboard>` | Full list of fetched dashboards |
| `filtered_dashboards` | `Array<Dashboard>` | List after applying text filter |
| `paginated_dashboards` | `Array<Dashboard>` | Slice of filtered list for current view |
| `filter_text` | `string` | Current search query |
| `sort_by` | `string` | Column key to sort by (`title`, `changed_on`, `published`) |
| `sort_asc` | `boolean` | Sort direction |
| `page` | `int` | Current page number (0-indexed) |
| `page_size` | `int` | Items per page (default 20) |