Files
Meshtastic-Android/core/model
James Rich 0a78a2755c feat(di,resources,model): enable wasmJs target
core:di has no expect declarations, just the target. core:resources' getString()
(blocking, runBlocking-based) can't exist on wasmJs -- split to expect/actual: a real
nonWebMain actual (android/jvm/iOS, same hierarchy-split pattern as core:ble) and a
wasmJsMain actual that fails loudly (there is no way to synchronously block on wasmJs;
callers on web must use the already-suspend getStringSuspend() instead). Renamed the
nonWebMain actual file to GetStringActuals.kt to avoid a JVM facade-class name collision
with commonMain's GetString.kt (both would otherwise generate an identical GetStringKt
class).

core:model's two expect declarations (getShortDateTime, platformRandomBytes) get wasmJs
actuals backed by Intl.DateTimeFormat and the Web Crypto API's getRandomValues() --
platformRandomBytes backs channel PSK/private-key generation, so it must be
cryptographically secure, never Math.random(). Third-party dependencies (takpacket-sdk
0.9.1, compose components-resources 1.12.0) confirmed to publish a wasmJs variant via
their real Gradle Module Metadata before enabling the target.

Verified via gradle-runner: compileKotlinWasmJs passes for all three, full regression
(android/jvm/iOS compiles, allTests, detekt, spotlessCheck) passes across every touched
module.
2026-08-30 19:43:57 -05:00
..

:core:model (Meshtastic Domain Models)

Overview

The :core:model module is a Kotlin Multiplatform (KMP) library containing the domain models and data classes used throughout the application and its API. These models are platform-agnostic and designed to be shared across Android, JVM, and future supported platforms.

Multiplatform Support

Models are plain commonMain Kotlin types — @Serializable (kotlinx.serialization) data classes and @JvmInline value classes — with no Android Parcelable dependency, so they are shared verbatim across Android, JVM, and iOS.

Key Models

  • DataPacket: Represents a mesh packet (text, telemetry, etc.).
  • Node: Contains detailed information about a node (position, SNR, battery, etc.).
  • NodeAddress / ContactKey: Type-safe node addressing (Broadcast/Local/ByNum/ById) and contact-key parsing, replacing stringly-typed "^all"/"!hex" handling.
  • DeviceHardware: Represents supported Meshtastic hardware devices and their capabilities.
  • Channel: Represents a mesh channel configuration.

Usage

This module is a core dependency of most feature modules.

// In commonMain
implementation(projects.core.model)

Structure

  • commonMain: Contains the majority of domain models and logic.
  • androidMain: Contains Android-specific utilities and implementations for expect declarations.
  • androidUnitTest: Contains unit tests that require Android-specific features (like Parcel testing via Robolectric).

Dependency Graph

graph TB
  :core:model[model]:::kmp-library
  :core:model --> :core:common
  :core:model --> :core:resources
  :core:model -.-> :core:testing

classDef android-application fill:#CAFFBF,stroke:#000,stroke-width:2px,color:#000;
classDef android-application-compose fill:#CAFFBF,stroke:#000,stroke-width:2px,color:#000;
classDef compose-desktop-application fill:#CAFFBF,stroke:#000,stroke-width:2px,color:#000;
classDef android-feature fill:#FFD6A5,stroke:#000,stroke-width:2px,color:#000;
classDef android-library fill:#9BF6FF,stroke:#000,stroke-width:2px,color:#000;
classDef android-library-compose fill:#9BF6FF,stroke:#000,stroke-width:2px,color:#000;
classDef android-test fill:#A0C4FF,stroke:#000,stroke-width:2px,color:#000;
classDef jvm-library fill:#BDB2FF,stroke:#000,stroke-width:2px,color:#000;
classDef kmp-feature fill:#FFD6A5,stroke:#000,stroke-width:2px,color:#000;
classDef kmp-library-compose fill:#FFC1CC,stroke:#000,stroke-width:2px,color:#000;
classDef kmp-library fill:#FFC1CC,stroke:#000,stroke-width:2px,color:#000;
classDef unknown fill:#FFADAD,stroke:#000,stroke-width:2px,color:#000;