426 lines
14 KiB
Markdown
426 lines
14 KiB
Markdown
# Multi-Tenant Ecommerce Platform - Vertical Slice Development Plan
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## Overview
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This document outlines a vertical slice development approach for the multi-tenant ecommerce platform. Each slice delivers a complete, working user workflow that validates core architectural decisions and provides immediate value.
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## Development Philosophy
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**Vertical Slice Benefits:**
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- Working software at each milestone
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- Early validation of architecture decisions
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- Immediate stakeholder feedback
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- Reduced risk through incremental delivery
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- Clear progress demonstration
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## Technology Stack Updates
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**Frontend Framework:** Alpine.js (v3.x)
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- Lightweight (15KB), no build step required
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- Perfect integration with Jinja2 templates
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- Reactive state management without complexity
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- CDN-based, works seamlessly with vanilla HTML/CSS/JS approach
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**Why Alpine.js:**
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- Minimal learning curve - feels like inline JavaScript
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- No conflicts with Jinja2 template syntax
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- Scoped reactivity - perfect for multi-tenant isolation
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- Progressive enhancement - works even if JS fails
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- Ideal for AJAX-heavy applications
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## Slice Development Order
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### Slice 1: Admin Creates Vendor → Vendor Owner Logs In (Week 1)
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**Core Value:** Establish multi-tenant foundation and vendor isolation
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**User Stories:**
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- ✅ As a Super Admin, I can create vendors through the admin interface
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- ✅ As a Super Admin, I can manage vendor accounts
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- ✅ As a Vendor Owner, I can log into my vendor-specific admin interface
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- ✅ The system correctly isolates vendor contexts
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**Technical Implementation:**
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#### Backend Components (Days 1-3) ✅
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```python
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# Essential Models
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class Vendor:
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id, name, subdomain, owner_email, is_active, created_at, updated_at
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class User:
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id, email, hashed_password, role, vendor_id, is_active, created_at, updated_at
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# Core Services
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class VendorService:
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- create_vendor(vendor_data) -> Creates vendor + owner user
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- get_vendor_by_subdomain(subdomain) -> For context detection
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class AuthService:
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- authenticate_admin(email, password) -> Admin login
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- authenticate_vendor(email, password, vendor_id) -> Vendor login
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# API Endpoints
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POST /api/v1/admin/vendors # Create vendor
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POST /api/v1/admin/auth/login # Admin authentication
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POST /api/v1/vendor/auth/login # Vendor authentication (context-aware)
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GET /api/v1/vendor/dashboard/stats # Basic vendor dashboard
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```
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_#### Frontend Components (Days 4-5)
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# Admin Interface (Vanilla JS)
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- admin/login.html # Super admin login
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- admin/vendors.html # Vendor creation form
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- admin/dashboard.html # Admin overview with stats
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# Vendor Interface (Vanilla JS)
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- vendor/login.html # Vendor owner login
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- vendor/dashboard.html # Basic vendor dashboard (Alpine.js)
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# Shared Components
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- js/shared/api-client.js # API communication utilities
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- css/shared/base.css # Base styling system
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- css/shared/auth.css # Authentication page styles
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- css/admin/admin.css # Admin interface styles
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- css/vendor/vendor.css # Vendor interface styles
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**Acceptance Criteria:**
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- [ ] Admin can log into admin interface
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- [ ] Admin can create new vendors
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- [ ] System generates vendor owner credentials
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- [ ] Vendor owner can log into vendor-specific interface
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- [ ] Vendor context detection works in dev and production modes
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- [ ] Database properly isolates vendor data
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**Deliverables:**
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- Working admin interface
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- Working vendor login system
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- Vendor context detection
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- Basic database schema with migrations
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---
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### Slice 2: Vendor Imports Products from Letzshop (Week 2)
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**Core Value:** Establish marketplace integration foundation
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**User Stories:**
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- As a Vendor Owner, I can configure my Letzshop CSV URL
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- As a Vendor Owner, I can trigger product imports from Letzshop
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- As a Vendor Owner, I can view import job status and results
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- The system processes CSV data in the background
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**Technical Implementation:**
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#### Backend Components (Days 1-3)
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```python
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# Additional Models
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class ImportJob:
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id, vendor_id, marketplace, csv_url, status, total_products,
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imported_at, created_at, updated_at
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class ImportedProduct:
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id, vendor_id, import_job_id, external_sku, raw_data,
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is_selected, created_at, updated_at
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# Enhanced Services
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class MarketplaceService:
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- create_import_job(vendor_id, csv_url) -> Creates import job
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- process_csv_import(job_id) -> Background processing
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- get_import_jobs(vendor_id) -> Import history
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# New API Endpoints
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POST /api/v1/marketplace/import # Trigger Letzshop import
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GET /api/v1/marketplace/imports # Import job history
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GET /api/v1/marketplace/imports/{id}/status # Job status
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```
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#### Frontend Components (Days 4-5)
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```html
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# Vendor Interface Extensions
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- vendor/imports.html # Import management
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- vendor/imports/letzshop.html # Letzshop configuration
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- vendor/imports/history.html # Import job history
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# Enhanced JavaScript
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- js/vendor/imports.js # Import management logic
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- js/vendor/marketplace.js # Marketplace interactions
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```
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**Acceptance Criteria:**
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- [ ] Vendor can configure Letzshop CSV URL
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- [ ] Vendor can trigger import jobs
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- [ ] System downloads and processes CSV files
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- [ ] Import status updates in real-time
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- [ ] Import history is properly tracked
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- [ ] Error handling for failed imports
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**Deliverables:**
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- Marketplace import system
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- Background job processing
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- Import management interface
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- CSV processing capabilities
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---
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### Slice 3: Vendor Selects and Publishes Products (Week 3)
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**Core Value:** Complete the marketplace-to-catalog workflow
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**User Stories:**
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- As a Vendor Owner, I can browse imported products
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- As a Vendor Owner, I can select which products to publish
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- As a Vendor Owner, I can customize product information
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- As a Vendor Owner, I can manage my product catalog
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**Technical Implementation:**
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#### Backend Components (Days 1-3)
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```python
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# Additional Models
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class Product:
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id, vendor_id, sku, name, price, imported_product_id,
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custom_description, custom_price, is_active, created_at, updated_at
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# Enhanced Services
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class ProductService:
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- get_imported_products(vendor_id, import_job_id) -> Browse imports
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- publish_product(vendor_id, imported_product_id) -> Publish to catalog
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- update_product(vendor_id, product_id, updates) -> Customize products
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- get_vendor_catalog(vendor_id) -> Published products
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# New API Endpoints
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GET /api/v1/marketplace/imports/{id}/products # Browse imported products
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POST /api/v1/products/from-import/{id} # Publish imported product
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GET /api/v1/products # Vendor catalog
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PUT /api/v1/products/{id} # Update product
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DELETE /api/v1/products/{id} # Remove product
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```
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#### Frontend Components (Days 4-5)
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```html
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# Vendor Interface Extensions
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- vendor/products.html # Product catalog management
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- vendor/products/browse-imports.html # Browse imported products
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- vendor/products/edit.html # Product editing
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- vendor/products/create.html # Manual product creation
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# Enhanced JavaScript
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- js/vendor/products.js # Product management logic
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- js/vendor/catalog.js # Catalog operations
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```
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**Acceptance Criteria:**
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- [ ] Vendor can browse all imported products
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- [ ] Vendor can select products to publish
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- [ ] Published products appear in vendor catalog
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- [ ] Vendor can customize product details
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- [ ] Vendor can manually create products
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- [ ] Product operations are properly isolated by vendor
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**Deliverables:**
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- Complete product management system
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- Import-to-catalog workflow
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- Product customization capabilities
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- Vendor catalog interface
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---
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### Slice 4: Customer Shops on Vendor Store (Week 4)
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**Core Value:** Enable customer-facing ecommerce functionality
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**User Stories:**
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- As a Customer, I can browse products on a vendor's shop
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- As a Customer, I can view product details
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- As a Customer, I can register for a vendor-specific account
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- As a Customer, I can add products to my cart
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**Technical Implementation:**
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#### Backend Components (Days 1-3)
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```python
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# Additional Models
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class Customer:
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id, vendor_id, email, hashed_password, first_name, last_name,
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customer_number, preferences, total_orders, total_spent,
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created_at, updated_at
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class Cart:
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id, vendor_id, customer_id, session_id, items,
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created_at, updated_at
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# New Services
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class CustomerService:
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- register_customer(vendor_id, customer_data) -> Vendor-scoped registration
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- authenticate_customer(vendor_id, email, password) -> Customer login
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- get_customer_profile(vendor_id, customer_id) -> Customer data
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class CartService:
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- get_cart(vendor_id, session_id) -> Cart contents
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- add_to_cart(vendor_id, session_id, product_id, quantity) -> Add item
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- update_cart_item(vendor_id, session_id, item_id, quantity) -> Update
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# Public API Endpoints
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GET /api/v1/public/vendors/{vendor_id}/products # Public product catalog
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GET /api/v1/public/vendors/{vendor_id}/products/{id} # Product details
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POST /api/v1/public/vendors/{vendor_id}/customers/register # Customer registration
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POST /api/v1/public/vendors/{vendor_id}/customers/login # Customer login
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GET/POST/PUT /api/v1/public/vendors/{vendor_id}/cart/{session_id} # Cart operations
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```
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#### Frontend Components (Days 4-5)
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```html
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# Customer Shop Interface
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- shop/home.html # Shop homepage
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- shop/products.html # Product catalog
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- shop/product.html # Product detail page
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- shop/cart.html # Shopping cart
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- shop/account/register.html # Customer registration
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- shop/account/login.html # Customer login
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# Shop JavaScript
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- js/shop/catalog.js # Product browsing
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- js/shop/cart.js # Cart functionality
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- js/shop/auth.js # Customer authentication
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```
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**Acceptance Criteria:**
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- [ ] Customers can browse products without authentication
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- [ ] Customers can register vendor-specific accounts
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- [ ] Customers can log into their vendor-specific accounts
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- [ ] Customers can add products to cart
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- [ ] Cart persists across sessions
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- [ ] Customer data is properly isolated by vendor
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**Deliverables:**
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- Complete customer shop interface
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- Customer registration and authentication
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- Shopping cart functionality
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- Public product browsing
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---
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### Slice 5: Customer Places Orders (Week 5)
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**Core Value:** Complete the ecommerce transaction workflow
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**User Stories:**
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- As a Customer, I can proceed to checkout with my cart
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- As a Customer, I can place orders
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- As a Customer, I can view my order history
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- As a Vendor Owner, I can view and manage customer orders
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**Technical Implementation:**
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#### Backend Components (Days 1-3)
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```python
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# Additional Models
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class Order:
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id, vendor_id, customer_id, order_number, status, total_amount,
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shipping_address, billing_address, items, created_at, updated_at
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class OrderItem:
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id, order_id, product_id, quantity, unit_price, total_price,
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created_at, updated_at
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# Enhanced Services
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class OrderService:
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- create_order_from_cart(vendor_id, customer_id, cart_id) -> Process checkout
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- get_customer_orders(vendor_id, customer_id) -> Order history
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- get_vendor_orders(vendor_id) -> All vendor orders
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- update_order_status(vendor_id, order_id, status) -> Order management
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# New API Endpoints
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POST /api/v1/public/vendors/{vendor_id}/orders # Place order
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GET /api/v1/public/vendors/{vendor_id}/customers/orders # Customer order history
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GET /api/v1/orders # Vendor order management
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PUT /api/v1/orders/{id}/status # Update order status
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```
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#### Frontend Components (Days 4-5)
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```html
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# Customer Interface Extensions
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- shop/checkout.html # Checkout process
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- shop/account/orders.html # Customer order history
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- shop/order-confirmation.html # Order confirmation
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# Vendor Interface Extensions
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- vendor/orders.html # Order management
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- vendor/orders/detail.html # Order details
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# Enhanced JavaScript
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- js/shop/checkout.js # Checkout process
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- js/vendor/orders.js # Order management
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```
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**Acceptance Criteria:**
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- [ ] Customers can complete checkout process
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- [ ] Orders are created with proper vendor isolation
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- [ ] Customers can view their order history
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- [ ] Vendors can view all their orders
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- [ ] Vendors can update order status
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- [ ] Order confirmation is sent to customers
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**Deliverables:**
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- Complete order processing system
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- Checkout workflow
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- Order management for vendors and customers
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- Order status tracking
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---
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## Deployment Strategy
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### Environment Setup
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Each slice should be deployable to:
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- **Development**: `localhost:3000` with path-based routing
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- **Staging**: Subdomain-based testing (`vendor.staging.platform.com`)
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- **Production**: Full subdomain + custom domain support
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### Continuous Integration
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- Automated testing for each slice
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- Database migration scripts
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- Environment configuration validation
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- Deployment verification
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## Quality Gates
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### Slice Completion Criteria
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Each slice must pass:
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- [ ] All acceptance criteria met
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- [ ] Manual testing complete
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- [ ] Security validation (vendor isolation)
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- [ ] Performance testing (basic load)
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- [ ] Documentation updated
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- [ ] Stakeholder demo successful
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### Testing Strategy
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- **Unit Tests**: Service layer functionality
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- **Integration Tests**: API endpoint behavior
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- **End-to-End Tests**: Complete user workflows
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- **Security Tests**: Vendor isolation validation
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## Success Metrics
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### Week 1 (Slice 1)
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- Admin can create vendors
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- Vendor owners can log in
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- Vendor context detection works
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### Week 2 (Slice 2)
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- Letzshop imports work correctly
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- Background job processing functional
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- Import status tracking operational
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### Week 3 (Slice 3)
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- Product selection workflow complete
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- Vendor catalog management functional
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- Product customization working
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### Week 4 (Slice 4)
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- Customer shop browsing works
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- Customer registration/login functional
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- Shopping cart operations working
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### Week 5 (Slice 5)
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- Complete order workflow functional
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- Order management for vendors working
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- System ready for production use
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This approach delivers working software weekly while building toward a complete platform. Each slice validates core assumptions and provides immediate value to stakeholders. |