# MODULE: Aether Events — Badges

**Module Path:** `src/routes/events/[event_id]/(badges)/badges/`
**API Module:** `src/lib/ae_events/ae_events__event_badge.ts`
**Database:** `db_events.badge` (Dexie IndexedDB table)
**Last Updated:** 2026-02-27 (rev 6)
**Related Docs:** `documentation/PROJECT__AE_Events_Badges_Review_Print.md` (implementation guide)

---

## Overview

The Badges module manages event attendee badges with support for:
- **External system imports** (iMIS, Zoom, Novi, Impexium, Confex, Cvent, and others)
- **Field override protection** to prevent staff/attendee edits from being overwritten by automated syncs
- **Multi-tier access control** for field editing
- **QR code generation** for badge scanning
- **Print tracking** (count, first/last print datetime)
- **Advanced search and filtering**
- **HTML rendering** in display fields for rich text formatting
- **Accessibility features** (text enlargement toggle)

---

## Critical Design Pattern: Override Fields

### Purpose
The `*_override` fields pattern protects data from being overwritten during scheduled cron syncs from external systems. This is essential because:
1. Staff may need to correct imported data
2. Attendees may be allowed to self-update certain fields (e.g., preferred name, pronouns)
3. External systems often have outdated or incorrect data
4. Changes should persist across multiple sync cycles

### How It Works

**Import Behavior:**
```
External System → Aether API → Populates REGULAR fields only
                                (never touches *_override fields)
```

**Display Behavior:**
```
UI Display Logic:
1. IF `*_override` field has value → USE IT (highest priority)
2. ELSE IF regular field has value → USE IT (fallback)
3. ELSE → Display placeholder/empty
```

**HTML Rendering (implemented 2026-02-27):**

Certain fields support HTML markup for rich text formatting. When viewing (not editing), these fields use Svelte's `{@html}` directive to render the markup:
- `full_name` / `full_name_override`
- `professional_title` / `professional_title_override`
- `affiliations` / `affiliations_override`
- `location` / `location_override`

This allows for formatting like:
- Bold/italic: `<b>Dr.</b> Jane Smith` or `<i>Chief Medical Officer</i>`
- Line breaks: `Hospital Name<br>Department Name`
- Special characters and entities

**Example — Full Name:**
```typescript
// API imports from iMIS
badge.given_name = "Robert"
badge.family_name = "Smith"
badge.full_name = "Robert Smith"  // Auto-computed

// Staff edits to preferred name with HTML
badge.full_name_override = "<b>Bob</b> Smith"

// Display in UI (review form)
{@html badge.full_name_override || badge.full_name || "— no name —"}
// Result: **Bob** Smith (bold rendered)

// Edit mode shows raw HTML
<input bind:value={editable_full_name_override} />
// Shows: <b>Bob</b> Smith (editable as text)

// Next cron sync from iMIS
// ✅ badge.full_name updated to "Robert J. Smith" (middle initial added)
// ✅ badge.full_name_override remains "<b>Bob</b> Smith" (PROTECTED)
// ✅ Display still shows **Bob** Smith (bold rendered)
```

### Override Fields

| Regular Field | Override Field | Purpose | Editable By | HTML Rendering |
|---|---|---|---|---|
| `pronouns` | `pronouns_override` | Preferred pronouns | Staff, Attendee | No |
| `professional_title` | `professional_title_override` | Job title display | Staff, Attendee | ✅ Yes |
| `full_name` | `full_name_override` | Preferred name display | Staff, Attendee | ✅ Yes |
| `affiliations` | `affiliations_override` | Organization display | Staff, Attendee | ✅ Yes |
| `phone` | `phone_override` | Phone number | Staff, Attendee | No |
| `email` | `email_override` | Contact email override | Staff only | No |
| `location` | `location_override` | City/State/Country display | Staff, Attendee | ✅ Yes |
| `badge_type` | `badge_type_override` | Badge category label text | Staff only | No |
| `badge_type_code` | `badge_type_code_override` | Badge access level code | Staff only | No |
| `registration_type` | `registration_type_override` | Registration category label text | Staff only | No |
| `registration_type_code` | `registration_type_code_override` | Registration category code | Staff only | No |

> **Note:** `phone`, `phone_override`, `pronouns_override`, `registration_type`, `registration_type_code`, `registration_type_override`, `registration_type_code_override` may need to be confirmed against the DB schema via `ae_describe event_badge` and added to `properties_to_save` in `ae_events__event_badge.ts` if not already present.

### Sync Safety Rules

**Automated Sync (Cron Jobs):**
- ✅ CAN update: All regular fields (`given_name`, `family_name`, `email`, `affiliations`, etc.)
- ❌ CANNOT update: Any `*_override` field
- ❌ CANNOT delete: Any `*_override` value

**Manual Staff Edit:**
- ✅ CAN update: Any field (including overrides)
- ✅ CAN clear: Override fields (reverts to regular field)

**Attendee Self-Service Edit:**
- ✅ CAN update: Only specific override fields (per event config)
- ✅ CAN clear: Their own override fields
- ❌ CANNOT edit: Regular fields, badge_type, email_override

---

## External System Integration

### Supported Import Sources
- **iMIS** (Association Management)
- **Zoom** (Virtual event registration)
- **Novi AMS** (Association Management)
- **Impexium** (Association Management)
- **Confex** (Event abstract management)
- **Cvent** (Event registration)
- **Custom CSV/Excel** imports

### Data Flow Direction
```
External Systems ─────────> Aether
    (READ ONLY)          (WRITE + DISPLAY)
```

**Important:** Aether is **pull-only** — does not push changes back to external systems. This prevents sync conflicts and maintains external systems as the source of truth for base data.

### Sync Behavior
- **Frequency:** Scheduled cron jobs (typically hourly, daily, or on-demand)
- **Method:** Full sync or incremental (depends on external system API)
- **Conflict Resolution:** Override fields always win

**Pseudocode:**
```python
def sync_badge_from_external(external_badge_data, existing_badge):
    # Update regular fields from external source
    existing_badge.given_name = external_badge_data.first_name
    existing_badge.family_name = external_badge_data.last_name
    existing_badge.email = external_badge_data.email
    existing_badge.affiliations = external_badge_data.organization
    existing_badge.badge_type_code = external_badge_data.registration_type

    # NEVER TOUCH OVERRIDE FIELDS
    # existing_badge.full_name_override ← PROTECTED
    # existing_badge.affiliations_override ← PROTECTED
    # existing_badge.email_override ← PROTECTED

    return existing_badge
```

---

## Access Control & Edit Permissions

### Access Levels (Ascending)
1. **Anonymous** — No access to badges
2. **Public** — View public event info only (no badge access)
3. **Authenticated** — View own badge, limited self-edit
4. **Trusted** — Search all badges, view all, edit own
5. **Administrator** — Full CRUD, bulk operations, override any field
6. **Manager** — All administrator + event configuration
7. **Super** — All manager + cross-event operations

### Current Implementation (v3) — 2026-02-27

#### Badge Search Results Visibility

| Access Level | Sees |
| --- | --- |
| Below Trusted (incl. anonymous) | Only badges where `print_count < 1` and not hidden |
| Trusted, not Edit Mode | Only badges where `print_count < 1` and not hidden |
| Trusted + Edit Mode | All badges where `hide === false` (including already-printed) |

#### Print Button Behavior (per result row)

| Access Level | Print Action |
| --- | --- |
| Below Trusted | No print action — name shown with User icon, non-interactive |
| Trusted, `print_count < 1` | Clickable link → `/print` page, Printer icon |
| Trusted, `print_count >= 1`, not Edit Mode | Disabled (already printed safety lock), shows `Nx` count |
| Trusted, `print_count >= 1`, Edit Mode | Clickable reprint — shows `Nx` count badge next to icon |

Print count displayed as `[Printer][2×] Name` when `print_count >= 1`.

#### Review Area Buttons (per result row, up to 3 buttons total)

| Button | Visible To | Behavior |
| --- | --- | --- |
| Email Review Link | All users | Placeholder `alert()` — will trigger email API |
| Review Link (clipboard) | Trusted + Edit Mode only | Copies `/review` URL to clipboard; shows `Copied!` feedback |
| *(direct Review link)* | *(future)* | *(not yet implemented as separate nav button)* |

#### Badge Edit Form (`ae_comp__badge_obj_view.svelte`)

**Currently editable fields (local `edit_mode_active`, not global `edit_mode`):**
```typescript
editable_full_name_override: string | null
editable_professional_title_override: string | null
editable_affiliations_override: string | null  // textarea
editable_location_override: string | null
editable_allow_tracking: boolean | null
editable_email: string | null
editable_badge_type_code: string | null
```

- Save button → `handle_save_changes()` — only changed fields sent to API
- Cancel button → `handle_cancel_changes()` — reverts to IDB values
- **IMPORTANT:** This component must NEVER write to `$ae_loc.edit_mode` — it uses its own local `edit_mode_active` flag only. (Bug fixed 2026-02-27)

#### Badge Review Form (`ae_comp__badge_review_form.svelte`)

Form-based review (NOT a badge render). Used by the `/review` page.

**Props:**
- `can_edit_fields: string[]` prop controls which fields are editable per user level
- `['*']` = administrator (all fields)
- `is_staff: boolean` prop shows/hides the staff-only fields
- Fields show "(overridden)" label when an override value differs from the base field

**Features (implemented 2026-02-27):**
- **HTML Rendering**: `full_name_override`, `professional_title_override`, `affiliations_override`, and `location_override` fields render HTML markup using `{@html}` directive when viewing (not when editing)
- **Accessibility**: Text enlargement toggle button switches between text-2xl (normal) and text-4xl (enlarged) for improved readability
- **Help Modal**: Flowbite Modal component with 6 help sections (Reviewing Badge, Editing Info, Accessibility, QR Code, Lead Scanning, Assistance)
- **QR Code Display**: Generates QR code using `core_func.js_generate_qr_code()` with badge ID, supports hover zoom and click-to-expand
- **Print Status**: Shows print count, first print datetime, and last print datetime at top of form
- **Local Edit Mode**: Independent `local_edit_active` state (never writes to `$ae_loc.edit_mode`)
- **Save/Cancel**: Only changed fields sent to API; revert button for override fields

**Editable Fields:**
- Pronouns, Full Name, Professional Title, Affiliations, Phone, Location (all with override support)
- Allow Tracking checkbox (lead scanning permission)
- Staff-only: Email, Badge Type, Registration Type, Hide, Priority, Notes
- Staff-only: Options (`other_1_code` through `other_8_code`) and Tickets (`ticket_1_code` through `ticket_8_code`)
- Agree to Terms & Conditions checkbox (attendee-visible when in can_edit_fields)

#### Badge Review Page — Header Buttons (implemented 2026-02-27)

| Button | Visible To | Behavior |
| --- | --- | --- |
| Back → Search (ArrowLeft) | Staff (`has_staff_access`) only | `<a href="/events/{id}/badges">` |
| Print (Printer icon) | Trusted+, not printed OR Trusted+Edit if printed | `<a href="/print">`, shows `Nx` count if reprinting |
| Copy Link (clipboard) | Trusted + Edit Mode only | Copies review URL to clipboard; `Copied!` feedback for 2s |
| Email Link (Mail icon) | All if not printed; Trusted+Edit if printed | Placeholder `alert()` — email API pending |

#### Badge Print Page — Header Buttons (implemented 2026-02-27)

| Button | Visible To | Behavior |
| --- | --- | --- |
| Back → Search (ArrowLeft) | Always (when badge loaded) | `<a href="/events/{id}/badges">` |
| Print Now (Printer icon) | Trusted+, not printed OR Trusted+Edit if printed | Calls `window.print()` directly (convenience duplicate); print count tracked by component button |
| Review (Eye icon) | Trusted + Edit Mode only | `<a href="/review">` nav link |
| Email Link (Mail icon) | All if not printed; Trusted+Edit if printed | Placeholder `alert()` — email API pending |

#### Badge Review Page — Display Sections (implemented 2026-02-27)

The review form (`ae_comp__badge_review_form.svelte`) displays:

1. **Print status** ✅ — print count + first/last print timestamps (read-only, hidden if never printed)
2. **QR Code** ✅ — the attendee's badge QR code for scanning at the badge kiosk (for automatic badge search + print flow). Generated using `core_func.js_generate_qr_code()` with `obj_type: 'event_badge'` and badge ID. Supports hover zoom overlay and click-to-expand.
3. **Editable Fields** ✅ — all fields with access-level gating, override support, and HTML rendering for display fields
4. **Options** ✅ (`other_1_code` through `other_8_code`) — Staff: editable text inputs; Attendees: shown as `[✓] Option X` checkmark display only when value exists
5. **Tickets** ✅ (`ticket_1_code` through `ticket_8_code`) — Staff: editable text inputs; Attendees: shown as `[✓] Ticket X` checkmark display only when value exists
6. **Accessibility Toggle** ✅ — Font size enlargement button in sticky header (text-2xl ↔ text-4xl)
7. **Help Modal** ✅ — Attendee guidance modal with 6 sections explaining the review process, editing, QR codes, and lead scanning

#### Default Field Permissions (hardcoded for now — Axonius first show, mid-April 2026)

These are hardcoded in `review/+page.svelte` pending connection to `mod_badges_json.edit_permissions`.

**Attendee (passcode-authenticated / anonymous with link):**
```typescript
[
  'pronouns_override',
  'full_name_override',
  'professional_title_override',
  'affiliations_override',
  'phone_override',
  'location_override',
  'allow_tracking',   // Exhibitor Leads opt-in
  'agree_to_tc',      // Terms & Conditions placeholder
]
```

**Trusted Staff and above:**
```typescript
[
  'pronouns_override',
  'full_name_override',
  'professional_title_override',
  'affiliations_override',
  'email_override',
  'phone_override',
  'location_override',
  'badge_type_code_override',   // + badge_type_override (text label)
  'registration_type_code_override',  // + registration_type_override (text label)
  'option_1' ... 'option_8',    // i.e. other_1_code ... other_8_code
  'ticket_1_code' ... 'ticket_8_code',
  'allow_tracking',
  'agree_to_tc',
  'hide',
  'priority',
  'notes',
]
```

**Administrator** — `can_edit_fields = ['*']` (all fields)

**Badge type options (hardcoded for now):** `member`, `non-member`, `guest`, `exhibitor`, `staff`, `test`
(In future: read from Event Badge Template's configured list)

**Registration type options:** Same list as badge type for now — identical select options.

#### Future: Per-Event Configuration

`event.mod_badges_json.edit_permissions` — placeholder settings UI exists in
`ae_comp__event_settings_badges_form.svelte`. Review page uses hardcoded defaults for now.
The settings form and review page are not yet connected.

```json
{
  "authenticated": {
    "can_edit": ["pronouns_override", "full_name_override", "professional_title_override", "affiliations_override", "phone_override", "location_override", "allow_tracking", "agree_to_tc"]
  },
  "trusted": {
    "can_edit": ["*attendee_fields", "email_override", "badge_type_code_override", "registration_type_code_override", "option_x", "ticket_x_code", "allow_tracking", "agree_to_tc", "hide", "priority", "notes"]
  }
}
```

---

## Search & Filter Capabilities

### Search Component
**File:** `ae_comp__badge_search.svelte`

### Multi-Word Search Fix (2026-02-26)
Fulltext search now correctly handles multi-word queries by splitting on whitespace and applying AND logic per word:
```typescript
// "scott idem" → LIKE '%scott%' AND LIKE '%idem%'
// Previously: LIKE '%scott idem%' (failed to match)
const words = qry.split(/\s+/).filter(w => w.length > 0);
for (const word of words) {
    search_query.and.push({ field: 'default_qry_str', op: 'like', value: `%${word}%` });
}
```
**Committed:** dc0f3066

### Available Filters

**Fulltext Search** (All Users)
- Searches: `default_qry_str` database field
- Includes: Name, email, external IDs
- Type: `LIKE %query%` (case-insensitive)
- Trigger: Enter key or 3+ characters typed

**Advanced Filters** (Trusted Access & Above)
```typescript
// Badge Type Filter
badge_type_code: 'current_member' | 'inactive_member' | 'ex_all' | 'staff' | etc.
// Note: Badge types are defined per Event and Event Badge Template in database table records.
// Common types include: member, nonmember, guest, exhibitor, staff
// This is a work in progress - types vary by event configuration.

// Print Status Filter
qry_printed_status: 'all' | 'printed' | 'not_printed'

// Affiliations Search
qry_affiliations: string  // Separate filter for organization search

// Sort Options
qry_sort_order:
  - 'name_asc' / 'name_desc'
  - 'updated_desc' / 'updated_asc'
  - 'print_count_desc'
  - 'print_first_desc' / 'print_last_desc'
  - 'badge_type_asc'
  - 'affiliations_asc'
```

### QR Scan Search
- Scans badge QR code
- Extracts badge ID
- Auto-fills search with ID
- Jumps to badge detail view

### Search Implementation Pattern
**File:** `badges/+page.svelte` (Lines 117-365)

**Strategy:** Standardized Reactive Search Pattern (Aether UI V3)
1. **Isolate dependencies** into stable `$derived` object
2. **Debounced effect** (300ms) triggers search
3. **Fast Path:** Search IDB first (if not `remote_first`)
4. **Revalidate:** API request updates IDB
5. **LiveQuery:** UI auto-updates from IDB changes

**Search API:** `events_func.search__event_badge()`
```typescript
await search__event_badge({
  api_cfg: $ae_api,
  event_id: event_id,
  fulltext_search_qry_str: qry_str || null,
  type_code: type_code || null,
  printed_status: printed_status,
  affiliations_qry_str: aff_str || null,
  order_by_li: order_by_li,
  limit: 150,
  log_lvl: 0
})
```

---

## Badge Display Logic

### Name Display Priority
```typescript
// Component: ae_comp__badge_obj_li.svelte (Lines 113-121)
if (event_badge_obj?.full_name_override)
    display: full_name_override
else if (event_badge_obj?.full_name)
    display: full_name
else
    display: given_name + ' ' + family_name
```

### Badge View Page
**Route:** `/events/[event_id]/badges/[badge_id]`

**Components:**
- `+page.svelte` — Container with LiveQuery for badge data
- `ae_comp__badge_obj_view.svelte` — Full badge display + edit UI

**LiveQueries:**
```typescript
lq__event_badge_obj = liveQuery(() => db_events.badge.get(event_badge_id))
lq__event_badge_template_obj = liveQuery(() =>
  db_events.badge_template.get(badge.event_badge_template_id)
)
```

**Loading States:**
- `is_loading_idb` — Waiting for initial IDB lookup
- If badge not found → "Badge Not Found" error with reload button
- Loader spinner while fetching

---

## Badge Templates

### Purpose
Badge templates define the visual layout and content structure for printed badges:
- Header images/logos
- Field positions and font sizes
- QR code placement
- Ticket/option indicator display
- WiFi credentials display

### Template Selection
Each badge references an `event_badge_template_id`. The template controls:
- Layout (front/back)
- Branding elements
- Which fields to show
- Field formatting rules

### Template Loading
Templates are loaded alongside badges via `inc_template` parameter:
```typescript
load_ae_obj_id__event_badge({
  event_badge_id: badge_id,
  inc_template: true  // Also loads template
})
```

---

## Print Tracking

### Print Fields
```typescript
print_count: number             // Increments each print
print_first_datetime: string    // ISO datetime of first print
print_last_datetime: string     // ISO datetime of most recent print
```

### Print Button (Implemented 2026-02-26)
The `handle_print_badge()` function in `ae_comp__badge_obj_view.svelte` increments the count and records timestamps:
```typescript
async function handle_print_badge() {
    const now = new Date().toISOString();
    const current_print_count = $lq__event_badge_obj.print_count ?? 0;
    const data_to_update = {
        print_count: current_print_count + 1,
        print_last_datetime: now
    };
    if (current_print_count === 0) {
        data_to_update.print_first_datetime = now;  // Only set on first print
    }
    await events_func.update_ae_obj__event_badge({ ... });
}
```

Button has `data-testid="badge-print-btn"` and shows loading/done/error states with icon feedback.

### Print Workflow
1. **Pre-Print:** Badge print page (`/print`) shows "Already printed N times" warning in screen-only header if `print_count >= 1`
2. **Record:** `handle_print_badge()` updates `print_count`, `print_last_datetime`, and `print_first_datetime` (first print only) via API before printing
3. **Print:** `window.print()` — standard browser print dialog, wired and working (2026-02-27)
4. **Redirect:** After 1 second, `goto(/events/{id}/badges)` returns to search
5. **Audit:** `print_first_datetime` and `print_last_datetime` visible in Edit Mode debug row

**Browser vs Electron:** Badge printing does NOT require the Electron native app. The standard browser print dialog works well across Chrome, Chromium, and Firefox. The Electron native app is specialized for the **Events Pres Mgmt Launcher only** and should not be assumed available for badge stations.

---

## Database Schema

### IndexedDB Table: `badge`
**File:** `src/lib/ae_events/db_events.ts` (Lines 841-852)

**Indexed Fields:**
```typescript
badge: `
  event_badge_id_random, event_badge_id, id,
  event_id, event_id_random,
  full_name, full_name_override, email, email_override,
  affiliations, affiliations_override,
  badge_type, badge_type_code, badge_type_code_override, badge_type_override,
  external_event_id, external_id, external_person_id,
  default_qry_str,
  alert,
  tmp_sort_1, tmp_sort_2,
  print_count, print_first_datetime, print_last_datetime,
  enable, hide, priority, sort, group, notes, created_on, updated_on
`
```

### Saved Properties
**File:** `ae_events__event_badge.ts` (Lines 495-563)

**Complete field list** (67 fields total):
- Identity: `id`, `event_badge_id`, `event_id`, `event_badge_template_id`
- Name: `pronouns`, `informal_name`, `title_names`, `given_name`, `middle_name`, `family_name`, `designations`
- Professional: `professional_title`, `professional_title_override`
- Display: `full_name`, `full_name_override`
- Organization: `affiliations`, `affiliations_override`
- Contact: `email`, `email_override`
- Address: `address_line_1`, `address_line_2`, `address_line_3`, `city`, `country_subdivision_code`, `state_province`, `state_province_abb`, `postal_code`, `country_alpha_2_code`, `country`, `full_address`
- Location: `location`, `location_override`
- Classification: `badge_type`, `badge_type_code`, `badge_type_override`, `badge_type_code_override`
- External: `external_event_id`, `external_id`, `external_person_id`
- Search: `query_str`, `default_qry_str`
- System: `alert`, `enable`, `hide`, `priority`, `sort`, `group`, `notes`, `created_on`, `updated_on`
- Print: `print_count`, `print_first_datetime`, `print_last_datetime`
- Sorting: `tmp_sort_1`, `tmp_sort_2`
- Person Link: `person_external_id`, `person_external_sys_id`, `person_given_name`, `person_family_name`, `person_full_name`, `person_professional_title`, `person_affiliations`, `person_primary_email`, `person_passcode`

---

## API Functions

### CRUD Operations
**File:** `src/lib/ae_events/ae_events__event_badge.ts`

```typescript
// Load single badge
load_ae_obj_id__event_badge({ event_badge_id, event_id, inc_template })

// Load badge list
load_ae_obj_li__event_badge({ event_id, view, limit, order_by_li })

// Search badges (V3 API)
search__event_badge({
  event_id,
  fulltext_search_qry_str,
  type_code,
  printed_status,
  affiliations_qry_str,
  order_by_li
})

// Create badge
create_ae_obj__event_badge({ event_id, data_kv })

// Update badge
update_ae_obj__event_badge({ event_badge_id, event_id, data_kv })

// Delete badge
delete_ae_obj_id__event_badge({ event_badge_id, event_id, method })
```

### Field Processing
**Function:** `process_ae_obj__event_badge_props()`

**Processing Steps:**
1. Map `*_random` fields to clean names (`event_badge_id_random` → `event_badge_id`)
2. Set primary `id` field from `event_badge_id`
3. Ensure `event_id` is set (from function parameter if missing)
4. Calculate `tmp_sort_1` and `tmp_sort_2` for efficient sorting
5. Return processed objects

**Critical Fix (2026-02-26):** All CRUD functions now return **processed** data (matches IDB cache) instead of raw API responses. This ensures consistency between function return values and cached data.

---

## Component Architecture

### Route Structure
```
/events/[event_id]/(badges)/badges/
├── +layout.svelte                      # Layout wrapper (minimal)
├── +page.svelte                        # Badge list + search
├── ae_comp__badge_search.svelte        # Search form + filters
├── ae_comp__badge_obj_li.svelte        # Badge list display (results)
├── ae_comp__badge_create_form.svelte   # (Not actively used)
├── ae_comp__badge_upload_form.svelte   # Bulk CSV upload
└── [badge_id]/
    ├── ae_comp__badge_obj_view.svelte  # Badge rendering + staff edit + print button
    ├── ae_comp__badge_review_form.svelte  # Form-based field review/edit (attendee + staff)
    ├── print/
    │   ├── +page.ts                    # Non-blocking badge loader (inc_template: true)
    │   └── +page.svelte                # Print-focused page — screen header + badge render
    └── review/
        ├── +page.ts                    # Non-blocking badge loader (inc_template: false)
        └── +page.svelte                # Passcode-gated review page
```

> **Note:** The old `[badge_id]/+page.svelte` placeholder was removed (2026-02-27). The name link in the search results list now goes directly to `/print`.

#### Badge Print Page (`/print`)
- Screen-only header (`print:hidden`): "Back to Search" link + "Already printed N times" warning
- Badge rendered via `ae_comp__badge_obj_view` with `is_review_mode={false}`
- Print button inside `ae_comp__badge_obj_view` handles count update → `window.print()` → redirect to search
- Page `<title>` includes badge name + event name

#### Badge Review Page (`/review`)
- Passcode-gated for attendees — URL `?passcode=...` matched against `badge.person_passcode`
  - **Note:** `person_passcode` field is not yet in the DB (as of 2026-02-27). Review page accessible to staff via `trusted_access` without a passcode.
- Access hierarchy (checked in order):
  1. Administrator → full access (`can_edit_fields = ['*']`)
  2. Trusted Staff → staff field set
  3. Attendee with valid passcode → attendee field set
  4. No access → passcode entry form shown
- Uses `ae_comp__badge_review_form.svelte` (NOT badge render)
- "Back to Search" link shown for staff only

### Key Components

**Badge List Page** (`+page.svelte`)
- **LiveQuery:** Reactive badge list from IDB
- **Search Pattern:** Debounced search with fast path + revalidation
- **ID List:** `event_badge_id_li` drives LiveQuery
- **Loading State:** Shows spinner when `search_status === 'loading'`

**Badge Search** (`ae_comp__badge_search.svelte`)
- **Form Mode:** Toggle between search form and QR scanner
- **Filters:** Badge type, print status, affiliations, sort order (trusted+ only)
- **Fulltext:** Name/email search (all users)
- **QR Scan:** Integrated QR scanner for badge ID lookup

**Badge List Display** (`ae_comp__badge_obj_li.svelte`)
- **Visibility Filter:** Respects `hide` flag (trusted+ sees all)
- **Display Logic:** Override → regular → fallback pattern
- **Print Indicator:** Green checkmark badge shows `print_count`
- **Metadata:** ID, created/updated timestamps (edit mode only)

**Badge Detail View** (`ae_comp__badge_obj_view.svelte`)
- **Edit Mode:** Activated by edit button (or `#review` URL hash for future self-service)
- **Condition:** Renders only when BOTH `$lq__event_badge_obj` AND `$lq__event_badge_template_obj` are non-null
- **Form Binding:** Direct `bind:value` on editable fields
- **Dynamic Sizing:** Font size adjusts based on text length
- **Print Preview:** Full badge layout with template
- **Save Handler:** Only sends changed fields to API
- **`data-testid` attributes:** `badge-edit-btn`, `badge-save-btn`, `badge-cancel-btn`, `badge-print-btn`, `badge-professional-title-input` — use these in tests

---

## Testing Status

### Current Test Coverage
- ✅ Badge list loads (all 6 data integrity tests passing)
- ✅ Badge template list loads and displays
- ✅ Badge template form renders and populates correctly
- ✅ Badge template values persist in edit form
- ✅ Electron bridge compatibility (graceful degradation in browser)
- ✅ Badge field processor handles missing optional fields
- ✅ Badge type filter tests
- ✅ Badge template relationship tests
- ✅ **Attendee workflow test** — navigate → edit professional title → print → return (d1ded2d4)

### Key Test Lessons Learned

**Search API path is FLAT, not nested.** `search_ae_obj_v3` builds `/v3/crud/{obj_type}/search` — always flat regardless of the parent relationship. Mocks must match this:
```typescript
// CORRECT — flat path
url.includes('/v3/crud/event_badge/search') && method === 'POST'
// WRONG — nested path, mock will never fire
url.includes(`/v3/crud/event/${event_id}/event_badge/search`) && method === 'POST'
```

**List API (GET) is also FLAT with query params.** `get_ae_obj_li_v3` builds `/v3/crud/{obj_type}/?for_obj_id=...` — always flat. Mocks must check `url.includes('/v3/crud/event_badge_template/') && url.includes('for_obj_id')`.

**CSS `input[value*=...]` selectors don't work with Svelte bind:value.** The CSS selector checks the HTML *attribute*; Svelte's `bind:value` sets the DOM *property* only. In Playwright tests, use `page.getByLabel()` or `locator.inputValue()` instead.

**Dexie requires `_random` ID fields.** Badge objects saved to IDB must include:
```typescript
event_badge_id_random: string  // Must be present or Dexie skips the object
id_random: string              // Also checked
// Error: "Object is missing a valid ID for table 'badge'"
```
All API mock responses in tests need these fields.

**Badge view requires both badge AND template.** `ae_comp__badge_obj_view.svelte` wraps everything in `{#if $lq__event_badge_obj && $lq__event_badge_template_obj}` — if the template isn't loaded, edit/print buttons and the badge itself don't render. Tests must mock the badge template endpoint.

**Badge GET endpoint (single object):** `/v3/crud/event_badge/{id}` (NOT nested under event). Matches `api.get_ae_obj_v3()` which uses the flat path.

**Badge PATCH endpoint (update):** `/v3/crud/event/${event_id}/event_badge/${badge_id}` (nested under event). Matches `api.patch_ae_obj_v3()` which uses the nested path.

**Use `data-testid` for test selectors.** Key buttons have targets: `badge-edit-btn`, `badge-save-btn`, `badge-cancel-btn`, `badge-print-btn`, `badge-professional-title-input`.

### Remaining Test Issues
None — all current badge tests passing as of 2026-02-26 (f5e98b8c).

---

## Known Issues & Future Enhancements

### Known Issues
1. **Session Cold-Start:** Potential race condition on first load (same as pres mgmt module)
2. **Type Definitions:** Some pre-existing TypeScript errors on external package types (not introduced by badge work)
3. **`person_passcode` not in DB:** Attendee-gated review URL (`?passcode=...`) cannot function until this field is added to the `event_badge` schema. The review page falls back to passcode entry form for non-staff.
4. **Print page CSS:** Badge print rendering and `@page` print styles not yet fine-tuned — expected to need work
5. **`mod_badges_json.edit_permissions` not connected:** Settings UI exists but review page uses hardcoded field defaults

### Implemented (2026-02-27)
- ✅ `window.print()` wired to print button (records count first, then prints, then redirects)
- ✅ Dedicated `/print` page — replaces old `[badge_id]/+page.svelte` placeholder
- ✅ Dedicated `/review` page — passcode-gated, access-tiered
- ✅ `ae_comp__badge_review_form.svelte` — stub created, full form fields pending
- ✅ Badge search results visibility rules (unprinted-only for non-edit, all for trusted+edit)
- ✅ Badge list: 4 action buttons per row (Print, Review nav, Copy Link, Email Link) — all Lucide icons
- ✅ Print page: 3 action buttons in header (Print Now, Review nav, Email Link) — all Lucide icons
- ✅ Review page: 3 action buttons in header (Print nav, Copy Link, Email Link) — all Lucide icons
- ✅ Print button: not shown when already printed (unless Edit Mode)
- ✅ Print count shown as `Nx` badge next to printer icon
- ✅ Email obscuring for non-trusted users
- ✅ Email Review Link button (placeholder alert — email API pending)
- ✅ Direct Review Link clipboard copy (trusted + Edit Mode only)
- ✅ Fixed: components no longer write to `$ae_loc.edit_mode`
- ✅ Settings UI for `edit_permissions` per event (`ae_comp__event_settings_badges_form.svelte`)
- ✅ All badge module icons converted to Lucide (Font Awesome removed from badge routes)

### Recently Completed (2026-02-27)
- ✅ **Badge Review Form** — `ae_comp__badge_review_form.svelte` fully implemented (fields, QR, save/cancel, options/tickets, accessibility, help modal)
- ✅ **Print font size controls (v1)** — Screen-only `[−]/[+]/[↺]` panel on print page; 4 px props added to `ae_comp__badge_obj_view.svelte`; auto-sizing unchanged when props absent
- ✅ **Bug fix** — `default_authenticated_fields` / `default_trusted_fields` in `review/+page.svelte` corrected (wrong field names caused silent save drops)

### Still Needed — HIGH PRIORITY (first show: April 2026)

### Still Needed — MEDIUM PRIORITY
1. **Email API for review links:** `send_review_email()` is a placeholder `alert()`. Needs actual email send endpoint.
2. **`person_passcode` DB field:** Add to `event_badge` schema to enable attendee-gated review URLs.
3. **Connect `edit_permissions` config:** Read `mod_badges_json.edit_permissions` in review page instead of hardcoded defaults.
4. **Print page CSS / `@page` styles:** Badge rendering, sizing, and print-specific stylesheet.

### Still Needed — FUTURE / LOW PRIORITY
1. **Batch Operations:** Bulk update, bulk print, bulk export
2. **Audit Log:** Track who edited which fields and when
3. **Photo Badges:** Support badge photo upload and display
4. **Real-Time Sync:** WebSocket updates for multi-device badge printing stations

---

## Development Guidelines

### Adding New Override Fields
1. Add `{field}_override` to database schema
2. Add to `properties_to_save` array in `ae_events__event_badge.ts`
3. Update display logic to check override first
4. Add to editable fields in `ae_comp__badge_obj_view.svelte`
5. Update access control config
6. Document in this file

### Testing Override Fields
```typescript
// Simulate external sync
badge.given_name = "External Value"

// User edits
badge.given_name_override = "User Value"

// Next sync (should NOT change override)
badge.given_name = "Updated External Value"

// Display should still show "User Value"
assert(display === badge.given_name_override)
```

### Debugging Search Issues
```typescript
// Enable search logging
log_lvl: 2

// Check search params object
console.log('Search params:', search_params)

// Verify API request
console.log('API request:', { event_id, fulltext_search_qry_str, type_code })

// Check returned IDs
console.log('Badge IDs:', event_badge_id_li)

// Verify IDB contents
db_events.badge.toArray().then(console.log)
```

---

## Related Documentation
- [AE API V3 for Frontend](./GUIDE__AE_API_V3_for_Frontend.md)
- [Development Guide](./GUIDE__Development.md)
- [Events Launcher Native Integration](./PROJECT__AE_Events_Launcher_Native_integration.md)
- [Naming Conventions](./AE__Naming_Conventions.md)

---

**Document Status:** 🔄 In Progress
**Last Verified:** 2026-02-27 (rev 5 — field permissions spec added, header buttons implemented, review form fields pending)
**Verified Against:** Code as of 2026-02-27 (branch ae_app_3x_llm)
