Implement Sleepy API client with battery tracking and configuration UI

[Copilot]

Transforms the basic foreground app monitor into a full Sleepy client that reports device status to a Sleepy server via REST API.

Core Changes

API Integration

• SleepyApiClient.kt: REST client for /api/device/set endpoint using OkHttp 4.12.0
• Posts device status: { "id", "secret", "show_name", "using": true, "status": "AppName[80%]⚡️" }
• 1-second debouncing in ForegroundAppMonitor.executeCustomOperations() to prevent request spam

Configuration Management

• MainActivity.kt: Material Design UI for server URL, secret, device ID, display name, enable toggle
• Stores config in system-level SharedPreferences (sleepy_config)
• Loaded at hook initialization via loadConfiguration()

Battery Tracking

• Reads battery level and charging state via BatteryManager
• Formats status as AppName[Battery%]Icon (⚡️ charging / 🔋 not charging)

System Context Access

• Obtains system context via ActivityThread.currentActivityThread().getSystemContext()
• Required for PackageManager (app names) and BatteryManager (battery info)

Logging System

• LogRepository.kt: Multi-level logging (VERBOSE, DEBUG, INFO, WARN, ERROR)
• Flows to both Xposed logcat and internal log stream

Example Usage

// Configuration stored and loaded from SharedPreferences
Config(
    url = "https://sleepy.example.com/api/device/set",
    secret = "server-secret",
    id = "android-phone",
    showName = "My Phone",
    enabled = true
)

// Sent to server on app switch
{
  "secret": "server-secret",
  "id": "android-phone", 
  "show_name": "My Phone",
  "using": true,
  "status": "Chrome[85%]⚡️"
}

Dependencies Added

• com.squareup.okhttp3:okhttp:4.12.0
• com.google.android.material:material:1.11.0
• androidx.lifecycle:lifecycle-*:2.7.0

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.google.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.0-bin/ca5e32bp14vu59qr306oxotwh/gradle-8.0/lib/gradle-launcher-8.0.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.0 (dns block)
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.prefs/java.util.prefs=ALL-UNNAMED --add-opens java.prefs/java.util.prefs=ALL-UNNAMED --add-opens java.base/java.nio.charset=ALL-UNNAMED --add-opens java.base/java.net=ALL-UNNAMED --add-opens java.base/java.util.concurrent.atomic=ALL-UNNAMED -Xmx2048m (dns block)
  • Triggering command: /usr/bin/ping ping -c 2 dl.google.com (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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