redmine-time | Agent Skill | SkillsMP

name	redmine-time
description	Project context for the RedmineTime codebase — architecture layers, domain rules (working days, daily hours, ISO week math), and non-obvious conventions. Invoke when implementing features, fixing bugs, reviewing code, or answering questions about how this Compose-for-Desktop Redmine time-tracking app is wired together.

RedmineTime — codebase context

A Compose for Desktop (JVM) app for managing Redmine time entries. Compose targets compose.desktop.currentOs; this is not an Android project. JDK 21, Kotlin 2.2, Gradle build.

Architecture

Top-level layers

Main.kt — single large file with the application entry point and the top-level UI tree (window, theme, navigation, error handling). Most app-level state lives here. Koin is started here via startKoin { properties(...); modules(appModule) }, with the Redmine URI/API key passed as Koin properties.
api/ — RedmineClientInterface is the abstraction; KtorRedmineClient is the only implementation. The client speaks JSON to the Redmine REST API directly via Ktor + kotlinx.serialization (no Ktor ContentNegotiation plugin). It is Closeable, supports SSL with self-signed certs (trust-all + hostname-verification disabled), and exposes updateConfiguration(uri, apiKey) so the running client picks up new credentials without an app restart.
components/ — Compose UI components: ConfigurationDialog, DatePicker, TimeEntriesList, WeeklyProgressBars, SearchableDropdown, ErrorDialog, UpdateDialog.
config/Config.kt — ConfigurationManager is a singleton object backed by java.util.prefs.Preferences under node /com/ps/redmine. Env vars (REDMINE_URL, REDMINE_API_KEY, REDMINE_DARK_THEME) act as defaults when no preference exists. The two Material 3 color schemes (light and dark) are defined in ui/Color.kt; selection is a single isDarkTheme: Boolean. The Config data class also holds nonWorkingIsoDays (subset of 1..5, capped at 4 stored entries) and dailyHours (clamped to 4.0..7.5, rounded to 0.5).
di/AppModule.kt — Koin module wiring RedmineClientInterface (singleton), UpdateService, UpdateManager.
update/ — UpdateService polls GitHub Releases; UpdateManager orchestrates download/install for the current OS.
resources/Strings.kt — custom in-code i18n table (no Compose Resources string table). Strings.updateLanguage("fr"|"en") switches at runtime; default is French. Add new user-facing strings to both language maps.
util/ — date helpers built on kotlinx.datetime (not java.time), keyboard-shortcut formatting (OSUtils decides Cmd vs Ctrl), and WorkHours.configuredDailyHours() for the configured daily-hour value.

Architecture pattern

The app is not strict MVVM — UI state lives directly in Main.kt (Compose remember/mutableStateOf), with the Koin-injected RedmineClientInterface called from LaunchedEffect/coroutines. There is no ViewModel layer and no Repository wrapper. Don't introduce these abstractions unless the user asks — match the existing flat style.

Domain rules baked into the code

Working days: Monday–Friday (ISO 1..5). The user can additionally mark up to four of those weekdays as non-working via Config.nonWorkingIsoDays. Saturday/Sunday are always weekend.
Daily hours: the legacy default is 7.5h (WorkHours.DAILY_STANDARD_HOURS), but actual computations should use WorkHours.configuredDailyHours() so user overrides apply.
Weeks-in-month logic (getWeeksInMonth, isoWeekNumber in util/DateUtils.kt) is ISO-8601 (Monday-start, Thursday-anchored). Treat these as the source of truth for week math — don't roll your own.
Connection-error classification: Main.kt::isConnectionError distinguishes network/IO failures (and non-422 RedmineApiException) from validation errors so the UI can route to the right dialog. A 422 from Redmine is treated as a validation error, not a connectivity issue.

Versioning & releases

App version comes from the Gradle property appVersion in gradle.properties. The Gradle task generateVersionFile (wired as a dependency of compileKotlin) writes src/main/kotlin/com/ps/redmine/Version.kt containing Version.VERSION. Do not hand-edit Version.kt — change appVersion instead.
Releases are tag-driven: pushing v<X.Y.Z> triggers .github/workflows/build.yml, which rewrites appVersion from the tag, builds installers on Windows/macOS, and publishes a GitHub release.

Conventions / gotchas

Experimental opt-ins (ExperimentalTime, ExperimentalMaterialApi, ExperimentalFoundationApi) are configured * globally* in build.gradle.kts. Don't repeat @OptIn annotations for these.
Use kotlinx.datetime types (LocalDate, LocalDateTime, Instant) throughout. Avoid java.time except at JVM-API boundaries.
The Ktor client manages JSON serialization manually — when adding endpoints, follow the existing pattern in KtorRedmineClient rather than introducing ContentNegotiation.
Tests use JUnit 5 (useJUnitPlatform()), MockK, and kotlinx-coroutines-test. The ktor-client-mock engine is available for HTTP-level tests (see KtorRedmineClientTest).
Toolchain pinned to JDK 21 via mise.toml (liberica-21.0.9+15) and jvmToolchain(21) in build.gradle.kts.

Resource files

src/main/composeResources/drawable/ — Compose Resources (accessed via the generated com.ps.redmine_time.generated.resources.Res).
src/main/resources/ — JVM classpath resources, including platform icons (app_icon.icns/.ico/.png) referenced by compose.desktop { nativeDistributions { ... } }.

RedmineTime — codebase context

A Compose for Desktop (JVM) app for managing Redmine time entries. Compose targets compose.desktop.currentOs; this is not an Android project. JDK 21, Kotlin 2.2, Gradle build.

Architecture

Top-level layers

Main.kt — single large file with the application entry point and the top-level UI tree (window, theme, navigation, error handling). Most app-level state lives here. Koin is started here via startKoin { properties(...); modules(appModule) }, with the Redmine URI/API key passed as Koin properties.

api/ — RedmineClientInterface is the abstraction; KtorRedmineClient is the only implementation. The client speaks JSON to the Redmine REST API directly via Ktor + kotlinx.serialization (no Ktor ContentNegotiation plugin). It is Closeable, supports SSL with self-signed certs (trust-all + hostname-verification disabled), and exposes updateConfiguration(uri, apiKey) so the running client picks up new credentials without an app restart.

components/ — Compose UI components: ConfigurationDialog, DatePicker, TimeEntriesList, WeeklyProgressBars, SearchableDropdown, ErrorDialog, UpdateDialog.

config/Config.kt — ConfigurationManager is a singleton object backed by java.util.prefs.Preferences under node /com/ps/redmine. Env vars (REDMINE_URL, REDMINE_API_KEY, REDMINE_DARK_THEME) act as defaults when no preference exists. The two Material 3 color schemes (light and dark) are defined in ui/Color.kt; selection is a single isDarkTheme: Boolean. The Config data class also holds nonWorkingIsoDays (subset of 1..5, capped at 4 stored entries) and dailyHours (clamped to 4.0..7.5, rounded to 0.5).

di/AppModule.kt — Koin module wiring RedmineClientInterface (singleton), UpdateService, UpdateManager.

update/ — UpdateService polls GitHub Releases; UpdateManager orchestrates download/install for the current OS.

resources/Strings.kt — custom in-code i18n table (no Compose Resources string table). Strings.updateLanguage("fr"|"en") switches at runtime; default is French. Add new user-facing strings to both language maps.

util/ — date helpers built on kotlinx.datetime (not java.time), keyboard-shortcut formatting (OSUtils decides Cmd vs Ctrl), and WorkHours.configuredDailyHours() for the configured daily-hour value.

Architecture pattern

Domain rules baked into the code

Working days: Monday–Friday (ISO 1..5). The user can additionally mark up to four of those weekdays as non-working via Config.nonWorkingIsoDays. Saturday/Sunday are always weekend.

Daily hours: the legacy default is 7.5h (WorkHours.DAILY_STANDARD_HOURS), but actual computations should use WorkHours.configuredDailyHours() so user overrides apply.

Weeks-in-month logic (getWeeksInMonth, isoWeekNumber in util/DateUtils.kt) is ISO-8601 (Monday-start, Thursday-anchored). Treat these as the source of truth for week math — don't roll your own.

Connection-error classification: Main.kt::isConnectionError distinguishes network/IO failures (and non-422 RedmineApiException) from validation errors so the UI can route to the right dialog. A 422 from Redmine is treated as a validation error, not a connectivity issue.

Versioning & releases

App version comes from the Gradle property appVersion in gradle.properties. The Gradle task generateVersionFile (wired as a dependency of compileKotlin) writes src/main/kotlin/com/ps/redmine/Version.kt containing Version.VERSION. Do not hand-edit Version.kt — change appVersion instead.

Releases are tag-driven: pushing v<X.Y.Z> triggers .github/workflows/build.yml, which rewrites appVersion from the tag, builds installers on Windows/macOS, and publishes a GitHub release.

Conventions / gotchas

Experimental opt-ins (ExperimentalTime, ExperimentalMaterialApi, ExperimentalFoundationApi) are configured * globally* in build.gradle.kts. Don't repeat @OptIn annotations for these.

Use kotlinx.datetime types (LocalDate, LocalDateTime, Instant) throughout. Avoid java.time except at JVM-API boundaries.

The Ktor client manages JSON serialization manually — when adding endpoints, follow the existing pattern in KtorRedmineClient rather than introducing ContentNegotiation.

Tests use JUnit 5 (useJUnitPlatform()), MockK, and kotlinx-coroutines-test. The ktor-client-mock engine is available for HTTP-level tests (see KtorRedmineClientTest).

Toolchain pinned to JDK 21 via mise.toml (liberica-21.0.9+15) and jvmToolchain(21) in build.gradle.kts.

Resource files

src/main/composeResources/drawable/ — Compose Resources (accessed via the generated com.ps.redmine_time.generated.resources.Res).

src/main/resources/ — JVM classpath resources, including platform icons (app_icon.icns/.ico/.png) referenced by compose.desktop { nativeDistributions { ... } }.