# Product Requirement Document (PRD): Kell Creations Operations Platform

## 1. Executive Summary & Vision

The **Kell Creations Operations Platform** is a cross-platform (Web & Android) multi-channel commerce management system. It unifies online storefront operations (WooCommerce), in-person craft market point-of-sale (Square), custom made-to-order requests, and raw supply/finished inventory management into a single operational interface[cite: 3].

## 2. Platform Architecture & Stack

- **Framework:** Flutter (Dart 3.11+)
- **Target Platforms:** Windows Desktop / Web (`kell_web`), Android (`kell_mobile`)[cite: 1, 3]
- **Monorepo Architecture:** Feature-first modular packages (`feature_wordpress`, `feature_inventory`, `feature_orders`, `feature_policy`, `auth`, `data`, `integrations`, `design_system`, `core`)[cite: 1, 3]
- **State & Data Flow:** Unidirectional flow using `ChangeNotifier` controllers and repository interfaces with mock (`FAKE`) and production implementation modes.

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## 3. Core Functional Requirements

### 3.1 Multi-Channel Catalog Management

- **WooCommerce Storefront:**
  - View, filter, search, and sort product drafts and published items.
  - Single-field and controlled inline edits (Name, Price, Description, Category).
  - Controlled status transitions (`unpublished` -> `draft`, `pendingReview` -> `draft`/`published`)[cite: 3].
  - Full Product Creation pipeline (`CreateProductDialog` on Web, `MobileCreateProductPage` on Android)[cite: 2, 3].
  - Product category CRUD and management workspace[cite: 2, 3].
  - Controlled bulk actions (Bulk move-to-draft, bulk publish, bulk submit for review)[cite: 2, 3].
- **Square Catalog Integration:**
  - Map WooCommerce items to Square Catalog API objects (`CatalogObject`)[cite: 2, 3].
  - Support cross-channel ID mapping (`ProductIdMapping`) to prevent duplicate listings[cite: 3].

### 3.2 Mobile Point-of-Sale (POS) & Market Sales

- Android-optimized UI using Material 3 `NavigationBar` and `IndexedStack`[cite: 2, 3].
- In-person checkout workflow via Square API integration[cite: 2, 3].
- Support cash recording and card processing via Square Reader SDK[cite: 3].
- Automatic inventory deduction and digital receipt generation upon payment completion[cite: 3].

### 3.3 Custom Orders Workflow

- **Specification Tracking:** Record custom order specs (material, color, size, dimensions, reference images)[cite: 3].
- **Financial Deposit Management:** Track deposit payments, deposit dates, remaining balance due, and final settlement[cite: 3].
- **Fulfillment Pipeline:** Status tracking (`quoted` -> `depositReceived` -> `inProduction` -> `qualityCheck` -> `readyForPickup` -> `completed`)[cite: 3].

### 3.4 Inventory & Supply Chain Operations

- **Dual-Type Tracking:** Separate raw materials/supplies (inputs) from finished goods (catalog items)[cite: 3].
- **Stock Adjustments:** Delta adjustments (+/-) and explicit quantity setting with reason logging[cite: 2, 3].
- **Bidirectional Stock Sync:** Real-time and batch stock synchronization across WooCommerce stock levels and Square inventory counts[cite: 2, 3].
- **Reorder Logic:** Automated low-stock indicators based on item reorder points[cite: 2, 3].

### 3.5 Infrastructure & Shared Services

- **Auth Foundation:** Role-based access (`admin`, `operator`, `viewer`) with encrypted local token/credential storage (`flutter_secure_storage`)[cite: 2, 3].
- **Offline Operations:** Local SQLite caching (`LocalCache<T>`) and offline sales queue (`SyncQueue`) with auto-reconciliation upon reconnection[cite: 2, 3].

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## 4. Non-Functional Requirements & Metrics

- **Code Coverage Visibility:** Maintain and expand line coverage visibility reported via Forgejo CI (`flutter test --coverage`)[cite: 2, 3].
- **Touch Optimization:** Minimum 48×48dp touch target enforcement across all interactive controls on mobile surfaces[cite: 2, 3].
- **Tactile & Visual Feedback:** Haptic feedback (`mediumImpact` for state changes, `lightImpact` for field edits) and explicit SnackBar feedback[cite: 2, 3].
- **Zero Structural Regressions:** Mandatory static analysis passing (`dart analyze --fatal-infos`) on every commit[cite: 2, 3].

---

## 5. Milestone & Feature Release Schedule

| Stage          | Feature Focus                                                        | Status                           |
| :------------- | :------------------------------------------------------------------- | :------------------------------- |
| **Stages 1–3** | Controlled Product Editing, UX Hardening & List Efficiency           | ✅ Merged[cite: 2, 3]            |
| **Stage 4**    | Shared Design System, Core Abstractions, CI/CD & Coverage Visibility | ✅ Merged[cite: 2, 3]            |
| **Stage 5**    | Android Shell Bootstrap & Publishing Surface                         | ✅ Merged[cite: 2, 3]            |
| **Stage 6**    | Android Touch Target Hardening & Mobile Surfaces (Orders/Inventory)  | ✅ Merged[cite: 2, 3]            |
| **Stage 7**    | Bulk Status Workflows (Move to Draft, Publish, Submit for Review)    | ✅ Merged[cite: 2, 3]            |
| **Stage 8**    | Core Integration Abstractions, Data Layer Contracts, Auth Foundation | ✅ Merged[cite: 2, 3]            |
| **Stage 9**    | WooCommerce API Expansion (Orders, Catalog, Catalog UI)              | ✅ Merged[cite: 2, 3]            |
| **Stage 10A**  | Square API Client & Authentication                                   | ✅ Merged[cite: 2, 3]            |
| **Stage 10B**  | **Square Catalog & Inventory Sync**                                  | 🔄 **Current Stage**[cite: 2, 3] |
| **Stage 10C**  | Square Mobile POS & In-Person Payments                               | ⏳ Planned[cite: 3]              |
| **Stage 11**   | Custom Orders Workflow & Deposit Tracking                            | ⏳ Planned[cite: 3]              |
| **Stage 12**   | Supplies Tracking & Multi-Channel Inventory Sync Engine              | ⏳ Planned[cite: 3]              |