WIP: Implement local database caching/networking with KMP

android/src/main/java/com/wbrawner/budget/ui/categories/CategoryFormActivity.kt

@@ -77,8 +77,8 @@ class CategoryFormActivity : AppCompatActivity() {
         return true
     }
 
-    override fun onOptionsItemSelected(item: MenuItem?): Boolean {
-        when (item?.itemId) {
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
             android.R.id.home -> {
                 val upIntent: Intent? = NavUtils.getParentActivityIntent(this)
 

android/src/main/java/com/wbrawner/budget/ui/transactions/TransactionFormActivity.kt

@@ -171,8 +171,8 @@ class TransactionFormActivity : AppCompatActivity(), CoroutineScope {
         return true
     }
 
-    override fun onOptionsItemSelected(item: MenuItem?): Boolean {
-        when (item?.itemId) {
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
             android.R.id.home -> onNavigateUp()
             R.id.action_save -> {
                 val date = GregorianCalendar.getInstance().apply {

budgetlib/build.gradle

@@ -4,11 +4,11 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
 
     defaultConfig {
         minSdkVersion 21
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

build.gradle

@@ -16,6 +16,7 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:4.1.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.squareup.sqldelight:gradle-plugin:1.4.3'
     }
 }
 

common/build.gradle

@@ -4,12 +4,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
 
 
     defaultConfig {
         minSdkVersion 21
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
 

settings.gradle

@@ -1 +1 @@
-include ':android', ':budgetlib', ':common', ':storage'
+include ':android', ':budgetlib', ':common', ':storage', ':shared'

shared/.gitignore

@@ -0,0 +1 @@
+/build

shared/build.gradle.kts

@@ -0,0 +1,98 @@
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget
+
+plugins {
+    kotlin("multiplatform")
+    id("com.android.library")
+    id("kotlin-android-extensions")
+    kotlin("plugin.serialization") version "1.4.10"
+    id("com.squareup.sqldelight")
+}
+group = "com.wbrawner.twigs"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    gradlePluginPortal()
+    google()
+    jcenter()
+    mavenCentral()
+}
+kotlin {
+    android()
+    ios {
+        binaries {
+            framework {
+                baseName = "twigs"
+            }
+        }
+    }
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+                implementation("io.ktor:ktor-client-core:1.4.2")
+                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.0.1")
+                implementation("io.ktor:ktor-client-serialization:1.4.2")
+            }
+        }
+        val commonTest by getting {
+            dependencies {
+                implementation(kotlin("test-common"))
+                implementation(kotlin("test-annotations-common"))
+            }
+        }
+        val androidMain by getting {
+            dependencies {
+                implementation("com.google.android.material:material:1.2.0")
+                implementation("com.squareup.sqldelight:android-driver:1.4.3")
+                api("io.ktor:ktor-client-android:1.4.2")
+            }
+        }
+        val androidTest by getting {
+            dependencies {
+                implementation(kotlin("test-junit"))
+                implementation("junit:junit:4.12")
+            }
+        }
+        val iosMain by getting {
+            dependencies {
+                implementation("io.ktor:ktor-client-ios:1.4.2")
+                implementation("com.squareup.sqldelight:native-driver:1.4.3")
+            }
+        }
+        val iosTest by getting
+    }
+}
+
+sqldelight {
+    database("TwigsDatabase") {
+        packageName = "com.wbrawner.twigs"
+    }
+}
+
+android {
+    compileSdkVersion(30)
+    sourceSets["main"].manifest.srcFile("src/androidMain/AndroidManifest.xml")
+    defaultConfig {
+        minSdkVersion(23)
+        targetSdkVersion(30)
+        versionCode = 1
+        versionName = "1.0"
+    }
+    buildTypes {
+        getByName("release") {
+            isMinifyEnabled = false
+        }
+    }
+}
+val packForXcode by tasks.creating(Sync::class) {
+    group = "build"
+    val mode = System.getenv("CONFIGURATION") ?: "DEBUG"
+    val sdkName = System.getenv("SDK_NAME") ?: "iphonesimulator"
+    val targetName = "ios" + if (sdkName.startsWith("iphoneos")) "Arm64" else "X64"
+    val framework = kotlin.targets.getByName<KotlinNativeTarget>(targetName).binaries.getFramework(mode)
+    inputs.property("mode", mode)
+    dependsOn(framework.linkTask)
+    val targetDir = File(buildDir, "xcode-frameworks")
+    from({ framework.outputDirectory })
+    into(targetDir)
+}
+tasks.getByName("build").dependsOn(packForXcode)

shared/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.kts.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

shared/src/androidMain/AndroidManifest.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.wbrawner.twigs.android"/>

shared/src/androidMain/kotlin/com/wbrawner/twigs/shared/AndroidTwigsDatabase.kt

@@ -0,0 +1,12 @@
+package com.wbrawner.twigs.shared
+
+import android.content.Context
+import com.squareup.sqldelight.android.AndroidSqliteDriver
+import com.squareup.sqldelight.db.SqlDriver
+import com.wbrawner.twigs.TwigsDatabase
+
+actual class DriverFactory(private val context: Context) {
+    actual fun createDriver(): SqlDriver {
+        return AndroidSqliteDriver(TwigsDatabase.Schema, context, "twigs.db")
+    }
+}

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/Responses.kt

@@ -0,0 +1,84 @@
+package com.wbrawner.twigs.shared
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Summary(
+    @SerialName("domains_being_blocked")
+    val domainsBeingBlocked: String,
+    @SerialName("dns_queries_today")
+    val dnsQueriesToday: String,
+    @SerialName("ads_blocked_today")
+    val adsBlockedToday: String,
+    @SerialName("ads_percentage_today")
+    val adsPercentageToday: String,
+    @SerialName("unique_domains")
+    val uniqueDomains: String,
+    @SerialName("queries_forwarded")
+    val queriesForwarded: String,
+    @SerialName("clients_ever_seen")
+    val clientsEverSeen: String,
+    @SerialName("unique_clients")
+    val uniqueClients: String,
+    @SerialName("dns_queries_all_types")
+    val dnsQueriesAllTypes: String,
+    @SerialName("queries_cached")
+    val queriesCached: String,
+    @SerialName("no_data_replies")
+    val noDataReplies: String? = null,
+    @SerialName("nx_domain_replies")
+    val nxDomainReplies: String? = null,
+    @SerialName("cname_replies")
+    val cnameReplies: String? = null,
+    @SerialName("in_replies")
+    val ipReplies: String? = null,
+    @SerialName("privacy_level")
+    val privacyLevel: String,
+    override val status: Status,
+    @SerialName("gravity_last_updated")
+    val gravity: Gravity? = null,
+    val type: String? = null,
+    val version: Int? = null
+) : StatusProvider
+
+@Serializable
+enum class Status {
+    @SerialName("enabled")
+    ENABLED,
+    @SerialName("disabled")
+    DISABLED
+}
+
+@Serializable
+data class Gravity(
+    @SerialName("file_exists")
+    val fileExists: Boolean,
+    val absolute: Int,
+    val relative: Relative
+)
+
+@Serializable
+data class Relative(
+    val days: String,
+    val hours: String,
+    val minutes: String
+)
+
+@Serializable
+data class VersionResponse(val version: Int)
+
+@Serializable
+data class TopItemsResponse(
+    @SerialName("top_queries") val topQueries: Map<String, String>,
+    @SerialName("top_ads") val topAds: Map<String, Double>
+)
+
+@Serializable
+data class StatusResponse(
+    override val status: Status
+) : StatusProvider
+
+interface StatusProvider {
+    val status: Status
+}

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/TwigsDatabaseFactory.kt

@@ -0,0 +1,16 @@
+package com.wbrawner.twigs.shared
+
+import com.squareup.sqldelight.db.SqlDriver
+import com.wbrawner.twigs.TwigsDatabase
+
+expect class DriverFactory {
+    fun createDriver(): SqlDriver
+}
+
+fun createDatabase(driverFactory: DriverFactory): TwigsDatabase {
+    val driver = driverFactory.createDriver()
+    val database = TwigsDatabase(driver)
+
+    // Do more work with the database (see below).
+    return database
+}

shared/src/commonMain/sqldelight/com/wbrawner/twigs/db/model/Budget.sq

@@ -0,0 +1,6 @@
+CREATE TABLE IF NOT EXISTS budget (
+    id TEXT PRIMARY KEY,
+    name TEXT NOT NULL UNIQUE,
+    description TEXT,
+    currencyCode TEXT
+);

shared/src/commonMain/sqldelight/com/wbrawner/twigs/db/model/Category.sq

@@ -0,0 +1,6 @@
+CREATE TABLE IF NOT EXISTS budget (
+    id TEXT PRIMARY KEY,
+    name TEXT NOT NULL UNIQUE,
+    description TEXT,
+    currencyCode TEXT
+);

shared/src/commonMain/sqldelight/com/wbrawner/twigs/db/model/Transaction.sq

@@ -0,0 +1,6 @@
+CREATE TABLE IF NOT EXISTS budget (
+    id TEXT PRIMARY KEY,
+    name TEXT NOT NULL UNIQUE,
+    description TEXT,
+    currencyCode TEXT
+);

shared/src/commonMain/sqldelight/com/wbrawner/twigs/db/model/User.sq

@@ -0,0 +1,6 @@
+CREATE TABLE IF NOT EXISTS budget (
+    id TEXT PRIMARY KEY,
+    name TEXT NOT NULL UNIQUE,
+    description TEXT,
+    currencyCode TEXT
+);

shared/src/iosMain/kotlin/com/wbrawner/twigs/shared/NativeTwigsDatabase.kt

@@ -0,0 +1,10 @@
+package com.wbrawner.twigs.shared
+
+import com.squareup.sqldelight.db.SqlDriver
+import com.wbrawner.twigs.TwigsDatabase
+
+actual class DriverFactory {
+    actual fun createDriver(): SqlDriver {
+        return NativeSqliteDriver(TwigsDatabase.Schema, "twigs.db")
+    }
+}

storage/build.gradle

@@ -4,12 +4,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
 
 
     defaultConfig {
         minSdkVersion 23
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"