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CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Layrz Models is a Dart/Flutter package that provides data models and SDK for the Layrz API. The package converts API responses into strongly-typed Dart objects using Freezed for immutability and JSON serialization.

Development Commands

# Code generation (standard build)
make freezed
# or: dart run build_runner freezed

# Run linter in dry-run mode
make lint
# or: dart fix --dry-run

# Run all tests
make test
# or: flutter test

# Run specific test file
flutter test test/ats_test.dart

Architecture and Code Organization

Module Structure

The codebase is organized into domain-specific modules under lib/src/. Each module follows a consistent pattern:

lib/src/[module]/
├── [module].dart          # Main file, imports all parts and defines exports
├── [module].freezed.dart  # Generated Freezed code (DO NOT EDIT)
├── [module].g.dart        # Generated JSON serialization code (DO NOT EDIT)
└── src/                   # Individual model files
    ├── model_a.dart
    └── model_b.dart

Key Modules

  • ats/: Automated Tracking System models (entries, exits, receptions, bookings, orders)
  • api/: API response wrappers and status handling
  • assets/: Asset-related models
  • users/: User and authentication models
  • workspace/: Workspace and organization models
  • sensors/: Sensor data models
  • triggers/: Trigger and automation models
  • geofences/: Geofence and location models
  • reports/: Reporting models
  • external/: External integration models (accounts, platforms)
  • brickhouse/: Brickhouse-specific models
  • tenvio/: Tenvio delivery service models
  • mappit/: Mapping-related models
  • vision/: Vision AI models
  • And many more specialized modules...

Model Patterns

All models follow these conventions:

  1. Part of library pattern: Each model file starts with part of '../[module].dart'; or similar
  2. Freezed immutability: Models use @freezed annotation for immutable data classes
  3. JSON serialization: Models implement fromJson() factory constructors
  4. Documentation: All classes and fields include dartdoc comments
  5. Converters: Custom converters (e.g., @TimestampOrNullConverter()) handle special serialization cases

Example model structure:

part of '../module.dart';

/// Model description
@freezed
abstract class ModelName with _$ModelName {
  const factory ModelName({
    /// Field description
    required String id,
    String? optionalField,
    @CustomConverter() DateTime? dateField,
  }) = _ModelName;

  factory ModelName.fromJson(Map<String, dynamic> json) => _$ModelNameFromJson(json);
}

Main Entry Point

lib/layrz_models.dart is the main library file that:

  • Imports dependencies
  • Exports all modules
  • Includes part statements for non-modular files
  • Contains helper enums like LayrzListingFormat

Converters

Custom JSON converters are located in lib/src/converters/ and handle special cases like:

  • Timestamp conversions
  • Color serialization
  • Duration formatting
  • Custom enum mappings

Code Generation Workflow

This package uses build_runner with freezed and json_serializable for code generation.

When to regenerate:

  • After creating/modifying any @freezed class
  • After adding/changing @JsonSerializable annotations
  • After modifying custom converters
  • If you see compilation errors about missing generated methods

Important: Always run code generation after making model changes. The .freezed.dart and .g.dart files are git-tracked but should never be manually edited.

Testing

Tests are located in test/ directory and follow the naming pattern [module]_test.dart.

Each test file typically tests:

  • JSON serialization/deserialization
  • Model construction
  • Field validation
  • Converter behavior

Development Workflow

  1. Make changes to model files (.dart files, NOT .freezed.dart or .g.dart)
  2. Run code generation: make build_delete
  3. Run tests: make test
  4. Run linter: make lint
  5. Commit changes (include generated files)

Important Notes

  • Never manually edit .freezed.dart or .g.dart files
  • All model files use the part of pattern and must be included in the parent library file
  • When adding a new module, add its export to lib/layrz_models.dart
  • Follow existing documentation patterns - all models and fields should have dartdoc comments
  • Use nullable fields (String?) liberally as API responses may have missing data
  • Deprecation: Use @Deprecated("migration message") for fields being phased out

Other considerations

  • "wrap it up" - Means review the changes, commit and push, and create a pull request if the user wants
  • Do not include Test plan on the PR body under any circumstances, the code should be tested before the PR.
  • Always include Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> as a footer in every git commit message.