Forem: Pheak Pheasa

git create branch from main

Pheak Pheasa — Thu, 21 Aug 2025 02:11:16 +0000

Method 1: Create branch from main, then switch

git branch <new-branch-name> main
git checkout <new-branch-name>

Method 2: Create and switch in one command

git checkout -b <new-branch-name> main

Method 3: Using newer git switch command

git switch -c <new-branch-name> main

Examples:

# Create a new feature branch from main
git checkout -b feature-user-authentication main

# Create a bug fix branch from main
git switch -c fix-login-issue main

# Create a hotfix branch from main
git checkout -b hotfix-critical-bug main

After created new brach you can't push/pull your code let's try here first:

git push --set-upstream origin <branch-name-you-created>

Git: How to Add Missing Files to Your Previous Commit

Pheak Pheasa — Tue, 05 Aug 2025 01:56:08 +0000

1.First Way

Go back to previous commit (keep changes in working directory)
git reset --soft HEAD~1
Add your missing files
git add missing-file.txt
Commit again with all files
git commit -m "Your original commit message"
Force push to update remote branch
git push --force-with-lease

2.Second Way

Alternative: Amend the last commit

git add missing-file.txt

git commit --amend --no-edit

git push --force-with-lease

3.Third Way

If you already pushed and want to be safer

git add missing-file.txt

git commit -m "Add missing files"

git push

MVVM Directory Structure for Point of Sale (POS) System

Pheak Pheasa — Wed, 07 May 2025 03:17:41 +0000

Here’s a standard and scalable directory structure for a Point of Sale (POS) system using MVVM architecture in Swift, with clean separation of concerns and real-world modularity:

POSApp/
│
├── App/
│   ├── AppDelegate.swift
│   ├── SceneDelegate.swift
│   └── Environment/
│       └── AppEnvironment.swift
│
├── Coordinators/
│   ├── AppCoordinator.swift
│   └── Modules/
│       ├── AuthCoordinator.swift
│       ├── ProductCoordinator.swift
│       ├── CartCoordinator.swift
│       └── CheckoutCoordinator.swift
│
├── Modules/
│   ├── Auth/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Product/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Cart/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Checkout/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   └── Dashboard/  ← For reporting/sales summary
│       ├── View/
│       ├── ViewModel/
│       ├── Model/
│       └── Service/
│
├── Services/
│   ├── API/
│   │   ├── APIClient.swift
│   │   └── Endpoints.swift
│   ├── Persistence/
│   │   ├── CoreDataStack.swift
│   │   └── LocalStorage.swift
│   └── Payment/
│       └── QRPaymentService.swift
│
├── Helpers/
│   ├── FormatterHelper.swift
│   ├── Validator.swift
│   └── ImagePickerHelper.swift
│
├── Components/
│   ├── Common/
│   │   ├── POSButton.swift
│   │   └── POSLabel.swift
│   └── ReusableViews/
│       └── ProductCardView.swift
│
├── Resources/
│   ├── Assets.xcassets
│   ├── Localizable.strings
│   └── Fonts/
│
├── Extensions/
│   ├── UIView+Ext.swift
│   ├── String+Ext.swift
│   └── UIColor+Ext.swift
│
├── Bindings/
│   └── ReactiveBinder.swift (for RxSwift, Combine, or custom bindings)
│
├── Middlewares/
│   └── AuthMiddleware.swift
│
├── Protocols/
│   └── Coordinatable.swift
│
├── Utils/
│   └── Logger.swift
│
└── Tests/
    ├── Unit/
    └── UI/

Key Principles:

Modularized per feature: Each Module/ has its own MVC elements.
MVVM: Clear separation of View, ViewModel, and Model.
Coordinator Pattern: Clean navigation handling.
Scalable: Easy to expand for inventory, employee management, reporting, etc.

MVVM Directory Structure for Point of Sale (POS) System

Pheak Pheasa — Wed, 07 May 2025 03:17:41 +0000

Here’s a standard and scalable directory structure for a Point of Sale (POS) system using MVVM architecture in Swift, with clean separation of concerns and real-world modularity:

POSApp/
│
├── App/
│   ├── AppDelegate.swift
│   ├── SceneDelegate.swift
│   └── Environment/
│       └── AppEnvironment.swift
│
├── Coordinators/
│   ├── AppCoordinator.swift
│   └── Modules/
│       ├── AuthCoordinator.swift
│       ├── ProductCoordinator.swift
│       ├── CartCoordinator.swift
│       └── CheckoutCoordinator.swift
│
├── Modules/
│   ├── Auth/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Product/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Cart/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   ├── Checkout/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Service/
│   │
│   └── Dashboard/  ← For reporting/sales summary
│       ├── View/
│       ├── ViewModel/
│       ├── Model/
│       └── Service/
│
├── Services/
│   ├── API/
│   │   ├── APIClient.swift
│   │   └── Endpoints.swift
│   ├── Persistence/
│   │   ├── CoreDataStack.swift
│   │   └── LocalStorage.swift
│   └── Payment/
│       └── QRPaymentService.swift
│
├── Helpers/
│   ├── FormatterHelper.swift
│   ├── Validator.swift
│   └── ImagePickerHelper.swift
│
├── Components/
│   ├── Common/
│   │   ├── POSButton.swift
│   │   └── POSLabel.swift
│   └── ReusableViews/
│       └── ProductCardView.swift
│
├── Resources/
│   ├── Assets.xcassets
│   ├── Localizable.strings
│   └── Fonts/
│
├── Extensions/
│   ├── UIView+Ext.swift
│   ├── String+Ext.swift
│   └── UIColor+Ext.swift
│
├── Bindings/
│   └── ReactiveBinder.swift (for RxSwift, Combine, or custom bindings)
│
├── Middlewares/
│   └── AuthMiddleware.swift
│
├── Protocols/
│   └── Coordinatable.swift
│
├── Utils/
│   └── Logger.swift
│
└── Tests/
    ├── Unit/
    └── UI/

Key Principles:

Modularized per feature: Each Module/ has its own MVC elements.
MVVM: Clear separation of View, ViewModel, and Model.
Coordinator Pattern: Clean navigation handling.
Scalable: Easy to expand for inventory, employee management, reporting, etc.

Document to show and sing with client before you start coding.

Pheak Pheasa — Mon, 28 Apr 2025 03:31:29 +0000

When working with a client, it's essential to establish clear agreements and expectations upfront. This ensures both parties are aligned on the project scope, deliverables, timeline, and payment terms. Below is a list of key documents you should prepare and sign with your client before starting the development process:

1. Project Proposal

Purpose: Outline the project details, features, and technical requirements.
Content:
- Project overview (e.g., "Telegram Mini App for Selling Exercise Videos").
- Key features (e.g., Admin uploads exercises, QR code payments, receipt validation).
- Target audience (students in grades 1–12 in Cambodia).
- Technology stack (Python backend, Vue.js frontend).
- Timeline (1 month).
- Deliverables (e.g., wireframes, functional app, deployment).
Action: Share this document with the client for approval.

2. Scope of Work (SOW)

Purpose: Define the exact scope of the project to avoid scope creep.
Content:
- Detailed feature list (e.g., admin dashboard, exercise upload, QR code generation, receipt validation).
- Exclusions (e.g., third-party integrations, additional payment methods).
- Phases of development (e.g., planning, backend, frontend, testing, deployment).
Action: Both parties should review and agree on the SOW.

3. Contract Agreement

Purpose: Legally bind both parties to the project terms.
Content:
- Project description.
- Payment terms (e.g., upfront payment, milestone-based payments).
- Intellectual property rights (e.g., who owns the code and design?).
- Confidentiality clause (if applicable).
- Termination clause (e.g., what happens if either party wants to cancel the agreement?).
- Signatures and dates.
Action: Draft the contract, have the client review it, and sign it before starting work.

4. Wireframes or Mockups

Purpose: Provide a visual representation of the app’s structure and design.
Content:
- Screenshots or sketches of key screens (e.g., home screen, exercise detail, payment screen).
- Basic flow of the app (e.g., how users navigate from one screen to another).
Action: Present these to the client for feedback and approval before moving to development.

5. Payment Schedule

Purpose: Clearly outline when and how payments will be made.
Content:
- Total project cost.
- Payment milestones (e.g., 30% upfront, 30% after backend completion, 40% after final delivery).
- Payment method (e.g., bank transfer, PayPal).
Action: Include this in the contract or as a separate document for clarity.

6. Design Guidelines (Optional)

Purpose: Ensure branding consistency if the client hasn’t provided specific guidelines.
Content:
- Color palette (e.g., blue, green, yellow).
- Logo ideas or examples.
- Typography (e.g., font styles and sizes).
Action: Share this document with the client for approval if they need help with branding.

7. Non-Disclosure Agreement (NDA) (Optional)

Purpose: Protect sensitive information shared during the project.
Content:
- Definition of confidential information.
- Obligations of both parties to keep information private.
- Duration of the NDA (e.g., 1 year, indefinite).
Action: Use this if the client shares proprietary data or if you’re building something confidential.

Summary of Documents

Document	Purpose	Required?
Project Proposal	Outlines project details and requirements.	Yes
Scope of Work (SOW)	Defines the project scope and deliverables.	Yes
Contract Agreement	Legally binds both parties to the project terms.	Yes
Wireframes/Mockups	Provides a visual representation of the app.	Yes
Payment Schedule	Clarifies payment terms and milestones.	Yes
Design Guidelines	Ensures branding consistency (if needed).	Optional
Non-Disclosure Agreement (NDA)	Protects confidential information (if applicable).	Optional

Next Steps

Prepare the above documents based on your client’s requirements.
Review each document with the client to ensure they understand and agree with the content.
Once approved, sign all necessary documents (e.g., contract, SOW, payment schedule).
Store signed copies securely for future reference.

By following this approach, you’ll minimize misunderstandings and set a strong foundation for a successful project.

MVVM + RxSwift + Coordinator directory structure for your large POS system

Pheak Pheasa — Wed, 23 Apr 2025 03:12:40 +0000

POSApp/
├── App/
│   ├── AppDelegate.swift
│   └── SceneDelegate.swift
├── Resources/
│   ├── Assets.xcassets
│   ├── LaunchScreen.storyboard
│   └── Localizable.strings
├── Helpers/
│   ├── NetworkManager.swift          // Handle API calls
│   ├── RxBinder.swift                // Custom Rx bindings
│   └── DateFormatterHelper.swift
├── Extensions/
│   ├── UIView+Extension.swift
│   └── Reactive+Extension.swift      // Rx extensions for UIKit
├── Base/
│   ├── BaseViewController.swift
│   └── BaseViewModel.swift
├── Coordinators/
│   ├── AppCoordinator.swift          // Entry point of navigation
│   ├── AuthCoordinator.swift
│   ├── ProductCoordinator.swift
│   └── CoordinatorProtocol.swift
├── Modules/
│   ├── Auth/
│   │   ├── View/
│   │   │   └── LoginViewController.swift
│   │   ├── ViewModel/
│   │   │   └── LoginViewModel.swift
│   │   ├── Model/
│   │   │   └── User.swift
│   │   └── Coordinator/
│   │       └── AuthFlow.swift
│   ├── Product/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Coordinator/
│   ├── Cart/
│   │   ├── View/
│   │   ├── ViewModel/
│   │   ├── Model/
│   │   └── Coordinator/
│   ├── Checkout/
│   ├── Stock/
│   └── Dashboard/
│       ├── View/
│       ├── ViewModel/
│       ├── Model/
│       └── Coordinator/
├── Services/
│   ├── APIService.swift              // Base networking service
│   ├── AuthService.swift
│   ├── ProductService.swift
│   └── CartService.swift
├── Router/
│   ├── Route.swift
│   └── RouteHandler.swift
├── Config/
│   └── AppConfig.swift               // API keys, base URLs, etc.
├── Components/
│   ├── Buttons/
│   │   └── PrimaryButton.swift
│   └── Cells/
│       └── ProductTableViewCell.swift
├── Bindings/
│   ├── UIView+Rx.swift
│   └── UIButton+Rx.swift
├── Protocols/
│   ├── ViewModelType.swift
│   └── ServiceType.swift
├── Error/
│   ├── AppError.swift
│   └── ErrorHandler.swift
├── Utils/
│   ├── CurrencyFormatter.swift
│   └── QRCodeGenerator.swift
├── Middlewares/
│   ├── AuthInterceptor.swift
│   └── LoggingInterceptor.swift
├── Persistence/
│   ├── CoreDataStack.swift
│   └── UserDefaultsService.swift
├── Notifications/
│   ├── NotificationManager.swift
│   └── NotificationNames.swift
├── Localization/
│   └── Strings/
│       ├── en.lproj/
│       └── km.lproj/
└── Tests/
    ├── LoginViewModelTests.swift
    └── ProductServiceTests.swift

Sandbox: rsync.samba (13105) deny(1) file-write-create, Flutter failed to write to a file [closed]

Pheak Pheasa — Tue, 22 Apr 2025 08:51:31 +0000

In Xcode, go to your project's Build Settings menu. In the Build Options section, set the property ENABLE_USER_SCRIPT_SANDBOXING to 'No'.

Easy way to make swift project to using only light mode.

Pheak Pheasa — Tue, 22 Apr 2025 04:22:19 +0000

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
        guard let _ = (scene as? UIWindowScene) else { return }
        window?.overrideUserInterfaceStyle = .light
    }

add only window?.overrideUserInterfaceStyle = .light into function scene in SceneDelegate.
select Product -> Clean Buil Folder
Now Just run you project again.

2 Ways to save your life when you confused push any code or file to your branch.

Pheak Pheasa — Mon, 24 Mar 2025 04:10:10 +0000

Way 1

1. Find your committed hash by :

git log

2. After found your commit hash you need revert it by :

git revert <commit-hash>

3. choose one at bellow with responsibility:

⸻

🟢 Uncommit last commit (keep files):

git reset --soft HEAD~1

✅ Files stay staged, just remove commit.

⸻

🟡 Uncommit & Unstage (keep changes in working directory):

git reset --mixed HEAD~1

✅ Files stay, but unstaged (not in commit).

⸻

🔴 Uncommit & Remove changes:

git reset --hard HEAD~1

⚠️ Files & commit both gone! Careful!

⸻

🟣 Uncommit pushed commit (force push):

git reset --soft HEAD~1

git push --force

✅ Removes commit on remote branch too.

⸻

Way 2 in next post.

MVVM Directory Structure for a Large Banking Mobile App Project

Pheak Pheasa — Wed, 15 Jan 2025 03:23:59 +0000

For a large bank mobile app using MVVM with Storyboards, here's a well-organized directory structure:

BankApp/
├── Application/
│   ├── AppDelegate.swift
│   ├── SceneDelegate.swift
│   ├── Info.plist
│   └── Assets.xcassets/
├── Resources/
│   ├── Fonts/
│   ├── Localization/
│   │   ├── en.lproj/
│   │   │   └── Localizable.strings
│   │   └── es.lproj/
│   │       └── Localizable.strings
│   └── Constants.swift
├── Core/
│   ├── Network/
│   │   ├── NetworkManager.swift
│   │   ├── APIEndpoints.swift
│   │   ├── RequestBuilder.swift
│   │   └── NetworkError.swift
│   ├── Storage/
│   │   ├── KeychainManager.swift
│   │   ├── CoreDataManager.swift
│   │   └── UserDefaultsManager.swift
│   ├── Authentication/
│   │   ├── AuthenticationManager.swift
│   │   └── BiometricAuthManager.swift
│   └── Analytics/
│       └── AnalyticsManager.swift
├── Extensions/
│   ├── UIKit+Extensions.swift
│   ├── Foundation+Extensions.swift
│   └── Date+Extensions.swift
├── Utilities/
│   ├── ThemeManager.swift
│   ├── Logger.swift
│   └── CurrencyFormatter.swift
├── Models/
│   ├── Account.swift
│   ├── Transaction.swift
│   ├── Card.swift
│   ├── User.swift
│   └── InvestmentPortfolio.swift
├── Services/
│   ├── AccountService.swift
│   ├── TransactionService.swift
│   ├── CardService.swift
│   ├── NotificationService.swift
│   └── InvestmentService.swift
├── Modules/
│   ├── Login/
│   │   ├── View/
│   │   │   ├── LoginViewController.swift
│   │   │   └── Login.storyboard
│   │   ├── ViewModel/
│   │   │   └── LoginViewModel.swift
│   │   └── Model/
│   │       └── LoginResponse.swift
│   ├── Dashboard/
│   │   ├── View/
│   │   │   ├── DashboardViewController.swift
│   │   │   ├── Dashboard.storyboard
│   │   │   ├── Cells/
│   │   │   │   ├── AccountSummaryCell.swift
│   │   │   │   └── QuickActionCell.swift
│   │   │   └── Components/
│   │   │       └── BalanceSummaryView.swift
│   │   ├── ViewModel/
│   │   │   └── DashboardViewModel.swift
│   │   └── Model/
│   │       └── DashboardData.swift
│   ├── Accounts/
│   │   ├── View/
│   │   │   ├── AccountsViewController.swift
│   │   │   ├── AccountDetailViewController.swift
│   │   │   ├── Accounts.storyboard
│   │   │   └── Cells/
│   │   │       ├── AccountCell.swift
│   │   │       └── TransactionCell.swift
│   │   ├── ViewModel/
│   │   │   ├── AccountsListViewModel.swift
│   │   │   └── AccountDetailViewModel.swift
│   │   └── Model/
│   │       └── AccountDetails.swift
│   ├── Transfer/
│   │   ├── View/
│   │   │   ├── TransferViewController.swift
│   │   │   ├── TransferConfirmationViewController.swift
│   │   │   ├── Transfer.storyboard
│   │   │   └── Components/
│   │   │       └── RecipientSelectionView.swift
│   │   ├── ViewModel/
│   │   │   ├── TransferViewModel.swift
│   │   │   └── TransferConfirmationViewModel.swift
│   │   └── Model/
│   │       └── TransferRequest.swift
│   ├── Cards/
│   │   ├── View/
│   │   │   ├── CardsViewController.swift
│   │   │   ├── CardDetailViewController.swift
│   │   │   ├── Cards.storyboard
│   │   │   └── Components/
│   │   │       └── CardView.swift
│   │   ├── ViewModel/
│   │   │   ├── CardsListViewModel.swift
│   │   │   └── CardDetailViewModel.swift
│   │   └── Model/
│   │       └── CardDetails.swift
│   ├── Payments/
│   │   ├── View/
│   │   │   ├── PaymentsViewController.swift
│   │   │   ├── BillPaymentViewController.swift
│   │   │   ├── Payments.storyboard
│   │   │   └── Cells/
│   │   │       └── PayeeCell.swift
│   │   ├── ViewModel/
│   │   │   ├── PaymentsViewModel.swift
│   │   │   └── BillPaymentViewModel.swift
│   │   └── Model/
│   │       └── PaymentRequest.swift
│   ├── Investments/
│   │   ├── View/
│   │   │   ├── InvestmentsViewController.swift
│   │   │   ├── InvestmentDetailViewController.swift
│   │   │   ├── Investments.storyboard
│   │   │   └── Components/
│   │   │       └── PortfolioChartView.swift
│   │   ├── ViewModel/
│   │   │   ├── InvestmentsViewModel.swift
│   │   │   └── InvestmentDetailViewModel.swift
│   │   └── Model/
│   │       └── InvestmentData.swift
│   ├── Profile/
│   │   ├── View/
│   │   │   ├── ProfileViewController.swift
│   │   │   ├── SecuritySettingsViewController.swift
│   │   │   └── Profile.storyboard
│   │   ├── ViewModel/
│   │   │   ├── ProfileViewModel.swift
│   │   │   └── SecuritySettingsViewModel.swift
│   │   └── Model/
│   │       └── UserProfile.swift
│   └── Support/
│       ├── View/
│       │   ├── SupportViewController.swift
│       │   ├── ChatSupportViewController.swift
│       │   └── Support.storyboard
│       ├── ViewModel/
│       │   ├── SupportViewModel.swift
│       │   └── ChatSupportViewModel.swift
│       └── Model/
│           └── SupportTicket.swift
├── Common/
│   ├── Views/
│   │   ├── CustomButton.swift
│   │   ├── CustomTextField.swift
│   │   ├── AlertView.swift
│   │   └── LoadingView.swift
│   ├── Protocols/
│   │   ├── Reusable.swift
│   │   └── Coordinator.swift
│   └── Coordinators/
│       ├── AppCoordinator.swift
│       ├── LoginCoordinator.swift
│       └── MainCoordinator.swift
└── Configurations/
    ├── Debug.xcconfig
    ├── Release.xcconfig
    └── Staging.xcconfig

Key Aspects of This Structure:

MVVM Organization:
- Each module has View, ViewModel, and Model folders
- Clear separation of concerns with Storyboards in View folders
Module-based Structure:
- Banking features separated into distinct modules (Login, Dashboard, Accounts, etc.)
- Each module is self-contained with its own Storyboard and components
Core Services:
- Network, Storage, Authentication layers separated from UI
- Reusable services for banking operations
Common Components:
- Shared UI elements and protocols in Common directory
- Coordinator pattern for navigation between modules
Resources & Configuration:
- Properly organized resources for localization, fonts, etc.
- Different configuration files for various build environments

This structure supports scalability and maintainability while following MVVM principles and leveraging Storyboards for UI design in a large banking application.

how to get SSH Keys for gitlab for mac?

Pheak Pheasa — Fri, 10 Jan 2025 13:50:06 +0000

Generate SSH Key Run this command in your terminal to generate a new SSH key:

   ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

Press Enter to save it in the default location.
Set a passphrase or leave it empty for no passphrase.

Start SSH Agent Start the SSH agent to manage your keys:

   eval "$(ssh-agent -s)"

Add SSH Key Add your new key to the SSH agent:

   ssh-add -K ~/.ssh/id_rsa

Copy SSH Key Copy your SSH public key to paste into GitLab:

   pbcopy < ~/.ssh/id_rsa.pub

Add Key to GitLab
- Go to GitLab > Settings > SSH Keys.
- Paste the copied key in the key field and add a title.

Done! Now you can clone or push to repositories securely.

Directory structure for building a stock system using FastAPI

Pheak Pheasa — Tue, 08 Oct 2024 16:54:51 +0000

This structure separates concerns, making it easier to manage as the project scales.

stock-system/
│
├── app/
│   ├── __init__.py
│   ├── main.py                     # Entry point of the FastAPI app
│   ├── api/                        # API related code (routers)
│   │   ├── __init__.py
│   │   ├── products.py              # Routes related to products
│   │   ├── inventory.py             # Routes related to inventory management
│   │   ├── sales.py                 # Routes related to sales and orders
│   │   └── users.py                 # Routes related to user management
│   │
│   ├── core/                       # Core settings and configurations
│   │   ├── __init__.py
│   │   ├── config.py                # Configuration settings (DB, API keys, etc.)
│   │   └── security.py              # Authentication, Authorization, and Security utilities
│   │
│   ├── crud/                       # CRUD operations for database interactions
│   │   ├── __init__.py
│   │   ├── crud_product.py          # CRUD operations related to products
│   │   ├── crud_inventory.py        # CRUD operations related to inventory
│   │   ├── crud_sales.py            # CRUD operations related to sales
│   │   └── crud_user.py             # CRUD operations related to users
│   │
│   ├── db/                         # Database-related modules
│   │   ├── __init__.py
│   │   ├── base.py                  # SQLAlchemy base for models
│   │   ├── session.py               # Database session creation
│   │   └── models/                  # SQLAlchemy models
│   │       ├── __init__.py
│   │       ├── product.py           # Product model
│   │       ├── inventory.py         # Inventory model
│   │       ├── sales.py             # Sales/Orders model
│   │       └── user.py              # User model
│   │
│   ├── schemas/                    # Pydantic schemas for request/response models
│   │   ├── __init__.py
│   │   ├── product.py               # Product-related schemas
│   │   ├── inventory.py             # Inventory-related schemas
│   │   ├── sales.py                 # Sales-related schemas
│   │   └── user.py                  # User-related schemas
│   │
│   ├── services/                   # Additional business logic/services
│   │   ├── __init__.py
│   │   ├── product_service.py       # Logic related to products
│   │   ├── inventory_service.py     # Logic related to inventory
│   │   ├── sales_service.py         # Logic related to sales
│   │   └── user_service.py          # Logic related to users
│   │
│   └── utils/                      # Utility functions/helpers
│       ├── __init__.py
│       ├── dependencies.py          # Common dependencies for routes
│       └── helpers.py               # Miscellaneous helper functions
│
├── tests/                          # Test cases
│   ├── __init__.py
│   ├── test_products.py             # Tests related to products
│   ├── test_inventory.py            # Tests related to inventory
│   ├── test_sales.py                # Tests related to sales/orders
│   └── test_users.py                # Tests related to users
│
├── alembic/                        # Database migrations using Alembic (if needed)
│   ├── versions/                    # Directory for migration scripts
│   └── env.py                       # Alembic environment configuration
│
├── Dockerfile                      # Dockerfile for containerizing the application
├── .env                            # Environment variables file (for secrets and config)
├── .gitignore                      # Files and directories to ignore in git
├── pyproject.toml                   # Dependencies and project metadata (or requirements.txt)
├── README.md                       # Documentation of the project
└── uvicorn_config.py               # Configuration for running the FastAPI app with Uvicorn

Key Directories and Files:

app/main.py: The entry point for the FastAPI application. It initiates the app, includes routers, and other configurations.
api/: Contains route definitions for various aspects of the stock system (products, inventory, sales, users).
db/: Includes SQLAlchemy models, the database session setup, and related files.
crud/: Handles the interaction between the database and the API through CRUD operations.
schemas/: Defines Pydantic models used for validation and serialization of request and response data.
services/: Contains the business logic for various features of the system.
tests/: Contains unit tests and integration tests to ensure functionality.
alembic/: If you're using Alembic for database migrations, this is where the migration files will go.

This structure is flexible and scalable for a stock system, promoting separation of concerns, easier testing, and maintenance.