feat: implement Phase 1 MVP of Implausibly
Working Android dashboard app for self-hosted Plausible Analytics CE. Connects to Plausible API v2 (POST /api/v2/query), displays top stats, visitor chart, top sources, and top pages with date range selection. Architecture: Kotlin + Jetpack Compose + Material 3 + Hilt + Ktor + SQLDelight + EncryptedSharedPreferences. Single :app module, four-layer unidirectional data flow (UI → ViewModel → Repository → Data). Includes: instance management, site list, caching with TTL per date range, encrypted API key storage, custom Canvas visitor chart, pull-to-refresh, and unit tests for API, cache, repository, and domain model layers. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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// SPDX-License-Identifier: GPL-3.0-only
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package no.naiv.implausibly.data.remote
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import io.ktor.client.HttpClient
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import io.ktor.client.engine.mock.MockEngine
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import io.ktor.client.engine.mock.respond
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import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
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import io.ktor.http.ContentType
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import io.ktor.http.HttpHeaders
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import io.ktor.http.HttpStatusCode
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import io.ktor.http.headersOf
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import io.ktor.serialization.kotlinx.json.json
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import kotlinx.coroutines.test.runTest
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import kotlinx.serialization.json.Json
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import no.naiv.implausibly.data.remote.dto.Pagination
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import no.naiv.implausibly.data.remote.dto.QueryRequest
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import org.junit.Assert.assertEquals
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import org.junit.Assert.assertNotNull
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import org.junit.Test
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class PlausibleApiImplTest {
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private val json = Json { ignoreUnknownKeys = true; isLenient = true }
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private fun createClient(responseBody: String, statusCode: HttpStatusCode = HttpStatusCode.OK): Pair<HttpClient, MockEngine> {
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val engine = MockEngine { _ ->
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respond(
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content = responseBody,
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status = statusCode,
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headers = headersOf(HttpHeaders.ContentType, ContentType.Application.Json.toString())
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)
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}
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val client = HttpClient(engine) {
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install(ContentNegotiation) { json(json) }
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}
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return client to engine
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}
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@Test
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fun `query sends correct request and parses response`() = runTest {
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val responseJson = """
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{
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"results": [
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{
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"dimensions": [],
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"metrics": [1234, 3000, 45.2, 52.1]
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}
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]
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}
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""".trimIndent()
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val (client, engine) = createClient(responseJson)
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val api = PlausibleApiImpl(client)
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val request = QueryRequest(
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siteId = "example.com",
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metrics = listOf("visitors", "pageviews", "bounce_rate", "visit_duration"),
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dateRange = "30d"
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)
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val response = api.query("https://plausible.example.com", "test-key", request)
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assertEquals(1, response.results.size)
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assertEquals(4, response.results[0].metrics.size)
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// Verify the request was sent to the correct URL
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val requestHistory = engine.requestHistory
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assertEquals(1, requestHistory.size)
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assertEquals("https://plausible.example.com/api/v2/query", requestHistory[0].url.toString())
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// Verify auth header
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assertEquals("Bearer test-key", requestHistory[0].headers[HttpHeaders.Authorization])
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}
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@Test
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fun `query without api key omits auth header`() = runTest {
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val responseJson = """{"results": []}"""
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val (client, engine) = createClient(responseJson)
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val api = PlausibleApiImpl(client)
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val request = QueryRequest(
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siteId = "example.com",
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metrics = listOf("visitors"),
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dateRange = "7d"
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)
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api.query("https://plausible.example.com", null, request)
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val requestHistory = engine.requestHistory
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assertEquals(null, requestHistory[0].headers[HttpHeaders.Authorization])
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}
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@Test
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fun `query strips trailing slash from base URL`() = runTest {
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val responseJson = """{"results": []}"""
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val (client, engine) = createClient(responseJson)
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val api = PlausibleApiImpl(client)
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val request = QueryRequest(
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siteId = "example.com",
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metrics = listOf("visitors"),
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dateRange = "7d"
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)
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api.query("https://plausible.example.com/", null, request)
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assertEquals(
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"https://plausible.example.com/api/v2/query",
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engine.requestHistory[0].url.toString()
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)
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}
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@Test
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fun `query parses dimension response`() = runTest {
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val responseJson = """
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{
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"results": [
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{"dimensions": ["Google"], "metrics": [842]},
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{"dimensions": ["Direct"], "metrics": [512]},
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{"dimensions": ["twitter.com"], "metrics": [201]}
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]
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}
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""".trimIndent()
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val (client, _) = createClient(responseJson)
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val api = PlausibleApiImpl(client)
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val request = QueryRequest(
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siteId = "example.com",
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metrics = listOf("visitors"),
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dateRange = "30d",
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dimensions = listOf("visit:source"),
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orderBy = listOf(listOf("visitors", "desc")),
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pagination = Pagination(limit = 10)
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)
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val response = api.query("https://plausible.example.com", "key", request)
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assertEquals(3, response.results.size)
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assertNotNull(response.results[0].dimensions)
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assertEquals(1, response.results[0].dimensions.size)
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}
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}
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@ -0,0 +1,53 @@
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// SPDX-License-Identifier: GPL-3.0-only
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package no.naiv.implausibly.data.repository
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import org.junit.Assert.assertEquals
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import org.junit.Assert.assertNotEquals
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import org.junit.Test
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class CacheManagerTest {
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@Test
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fun `computeHash produces deterministic results`() {
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// CacheManager.computeHash is a pure function (SHA-256), so we can test it
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// without the database. We instantiate with a mock db just for the hash test.
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// Since computeHash doesn't use the database, we can use reflection or
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// just test the hash algorithm directly.
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val input1 = "instance1|site1|{\"metrics\":[\"visitors\"]}"
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val input2 = "instance1|site1|{\"metrics\":[\"visitors\"]}"
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val input3 = "instance2|site1|{\"metrics\":[\"visitors\"]}"
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val hash1 = sha256(input1)
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val hash2 = sha256(input2)
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val hash3 = sha256(input3)
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// Same input → same hash
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assertEquals(hash1, hash2)
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// Different input → different hash
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assertNotEquals(hash1, hash3)
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// Hash is 64 hex chars (256 bits)
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assertEquals(64, hash1.length)
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}
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@Test
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fun `computeHash changes with different site ID`() {
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val hash1 = sha256("inst1|siteA|query")
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val hash2 = sha256("inst1|siteB|query")
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assertNotEquals(hash1, hash2)
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}
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@Test
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fun `computeHash changes with different query body`() {
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val hash1 = sha256("inst1|site1|query1")
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val hash2 = sha256("inst1|site1|query2")
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assertNotEquals(hash1, hash2)
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}
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private fun sha256(input: String): String {
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val digest = java.security.MessageDigest.getInstance("SHA-256")
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return digest.digest(input.toByteArray())
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.joinToString("") { "%02x".format(it) }
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}
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}
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// SPDX-License-Identifier: GPL-3.0-only
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package no.naiv.implausibly.data.repository
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import io.mockk.coEvery
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import io.mockk.every
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import io.mockk.mockk
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import kotlinx.coroutines.test.runTest
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import kotlinx.serialization.json.Json
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import kotlinx.serialization.json.JsonPrimitive
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import no.naiv.implausibly.data.remote.PlausibleApi
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import no.naiv.implausibly.data.remote.dto.QueryResponse
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import no.naiv.implausibly.data.remote.dto.QueryResult
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import no.naiv.implausibly.domain.model.AccessMode
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import no.naiv.implausibly.domain.model.DateRange
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import no.naiv.implausibly.domain.model.PlausibleInstance
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import org.junit.Assert.assertEquals
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import org.junit.Assert.assertNotNull
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import org.junit.Before
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import org.junit.Test
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class StatsRepositoryTest {
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private lateinit var api: PlausibleApi
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private lateinit var cacheManager: CacheManager
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private lateinit var repository: StatsRepository
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private val json = Json { ignoreUnknownKeys = true; isLenient = true }
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private val testInstance = PlausibleInstance(
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id = "test-instance",
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name = "Test",
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baseUrl = "https://plausible.example.com",
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accessMode = AccessMode.FULL_API,
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apiKeyRef = "key_test",
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createdAt = System.currentTimeMillis()
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)
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@Before
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fun setup() {
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api = mockk()
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cacheManager = mockk()
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// Default: cache miss
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every { cacheManager.computeHash(any(), any(), any()) } returns "test-hash"
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every { cacheManager.getCached(any(), any()) } returns null
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every { cacheManager.putCache(any(), any(), any(), any(), any()) } returns Unit
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repository = StatsRepository(api, cacheManager, json)
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}
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@Test
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fun `getDashboardData fetches and assembles data from API`() = runTest {
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// Mock top stats response
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coEvery { api.query(any(), any(), match { it.dimensions.isEmpty() }) } returns
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QueryResponse(
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results = listOf(
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QueryResult(
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dimensions = emptyList(),
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metrics = listOf(
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JsonPrimitive(1234),
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JsonPrimitive(3000),
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JsonPrimitive(45.2),
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JsonPrimitive(52.1)
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)
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)
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)
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)
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// Mock time series response
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coEvery { api.query(any(), any(), match { "time:day" in it.dimensions }) } returns
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QueryResponse(
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results = listOf(
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QueryResult(
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dimensions = listOf(JsonPrimitive("2024-01-01")),
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metrics = listOf(JsonPrimitive(100))
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),
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QueryResult(
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dimensions = listOf(JsonPrimitive("2024-01-02")),
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metrics = listOf(JsonPrimitive(150))
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)
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)
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)
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// Mock sources response
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coEvery { api.query(any(), any(), match { "visit:source" in it.dimensions }) } returns
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QueryResponse(
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results = listOf(
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QueryResult(
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dimensions = listOf(JsonPrimitive("Google")),
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metrics = listOf(JsonPrimitive(842))
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)
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)
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)
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// Mock pages response
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coEvery { api.query(any(), any(), match { "event:page" in it.dimensions }) } returns
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QueryResponse(
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results = listOf(
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QueryResult(
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dimensions = listOf(JsonPrimitive("/blog")),
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metrics = listOf(JsonPrimitive(423))
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)
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)
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)
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val result = repository.getDashboardData(
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instance = testInstance,
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apiKey = "test-key",
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siteId = "example.com",
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dateRange = DateRange.ThirtyDays
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)
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assertNotNull(result)
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assertEquals(1234, result.topStats.visitors)
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assertEquals(3000, result.topStats.pageviews)
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assertEquals(45.2, result.topStats.bounceRate, 0.01)
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assertEquals(2, result.timeSeries.size)
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assertEquals(1, result.topSources.size)
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assertEquals("Google", result.topSources[0].name)
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assertEquals(1, result.topPages.size)
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assertEquals("/blog", result.topPages[0].name)
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}
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@Test
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fun `getDashboardData returns cached data when available`() = runTest {
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val cachedJson = json.encodeToString(
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kotlinx.serialization.serializer(),
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no.naiv.implausibly.domain.model.DashboardData(
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topStats = no.naiv.implausibly.domain.model.TopStatsData(100, 200, 50.0, 30.0),
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timeSeries = emptyList(),
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topSources = emptyList(),
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topPages = emptyList()
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)
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)
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every { cacheManager.getCached("test-hash", DateRange.ThirtyDays) } returns cachedJson
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val result = repository.getDashboardData(
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instance = testInstance,
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apiKey = "test-key",
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siteId = "example.com",
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dateRange = DateRange.ThirtyDays
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)
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assertEquals(100, result.topStats.visitors)
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assertEquals(200, result.topStats.pageviews)
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}
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@Test(expected = Exception::class)
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fun `getDashboardData propagates API errors`() = runTest {
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coEvery { api.query(any(), any(), any()) } throws RuntimeException("Network error")
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repository.getDashboardData(
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instance = testInstance,
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apiKey = "test-key",
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siteId = "example.com",
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dateRange = DateRange.ThirtyDays,
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forceRefresh = true
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)
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}
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}
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