Repo created

feature/funding/api/build.gradle.kts

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+plugins {
+    id(ThunderbirdPlugins.Library.androidCompose)
+    alias(libs.plugins.kotlin.serialization)
+}
+
+android {
+    namespace = "app.k9mail.feature.funding.api"
+    resourcePrefix = "funding_api_"
+}
+
+dependencies {
+    api(projects.core.ui.compose.navigation)
+}

feature/funding/api/src/main/kotlin/app/k9mail/feature/funding/api/FundingManager.kt

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+package app.k9mail.feature.funding.api
+
+import androidx.appcompat.app.AppCompatActivity
+
+interface FundingManager {
+    /**
+     * Returns the type of funding.
+     */
+    fun getFundingType(): FundingType
+
+    /**
+     * Adds a funding reminder.
+     *
+     * The reminder is registered to the current lifecycle of the Activity.
+     *
+     * @param activity The activity to register the reminder to.
+     * @param onOpenFunding The callback to be called when the user opens the funding.
+     */
+    fun addFundingReminder(activity: AppCompatActivity, onOpenFunding: () -> Unit)
+}

feature/funding/api/src/main/kotlin/app/k9mail/feature/funding/api/FundingNavigation.kt

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+package app.k9mail.feature.funding.api
+
+import app.k9mail.core.ui.compose.navigation.Navigation
+import app.k9mail.core.ui.compose.navigation.Route
+import kotlinx.serialization.Serializable
+
+const val FUNDING_BASE_DEEP_LINK = "app://feature/funding"
+
+sealed interface FundingRoute : Route {
+    @Serializable
+    data object Contribution : FundingRoute {
+        override val basePath: String = BASE_PATH
+
+        override fun route(): String = basePath
+
+        const val BASE_PATH = "$FUNDING_BASE_DEEP_LINK/contribution"
+    }
+}
+
+interface FundingNavigation : Navigation<FundingRoute>

feature/funding/api/src/main/kotlin/app/k9mail/feature/funding/api/FundingSettings.kt

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+package app.k9mail.feature.funding.api
+
+interface FundingSettings {
+    fun getReminderReferenceTimestamp(): Long
+    fun setReminderReferenceTimestamp(timestamp: Long)
+
+    fun getReminderShownTimestamp(): Long
+    fun setReminderShownTimestamp(timestamp: Long)
+
+    fun getActivityCounterInMillis(): Long
+    fun setActivityCounterInMillis(activeTime: Long)
+}

feature/funding/api/src/main/kotlin/app/k9mail/feature/funding/api/FundingType.kt

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+package app.k9mail.feature.funding.api
+
+enum class FundingType {
+    GOOGLE_PLAY,
+    LINK,
+    NO_FUNDING,
+}