package io.oxygenhub.android.ui

import io.oxygenhub.android.FakeHubApi

import io.oxygenhub.android.api.FlowRun

import io.oxygenhub.android.api.HubException

import io.oxygenhub.android.api.UserFlowRun

import io.oxygenhub.android.api.UserSky

import io.oxygenhub.android.widget.SkyBitmap

import io.oxygenhub.android.widget.WidgetData

import kotlinx.coroutines.test.runTest

import org.junit.Assert.assertEquals

import org.junit.Assert.assertFalse

import org.junit.Assert.assertNotEquals

import org.junit.Assert.assertNull

import org.junit.Assert.assertTrue

import org.junit.Test

class WidgetDataTest {

    @Test

    fun theWidgetShowsTheLatestRunsAndCountsAndAsksForASignInWithoutOne() = runTest {

        val api = FakeHubApi()

        api.userFlowRuns = { (1L..5L).map { UserFlowRun("andy/a", FlowRun(number = it, status = "passed")) } }

        val d = WidgetData.load(api)

        assertEquals(listOf(1L, 2L, 3L), d.runs.map { it.run.number })

        assertEquals(1, d.reviews)

        assertFalse(WidgetData.load(null).signedIn)

    }

    @Test

    fun aPartTheHubCannotGiveIsLeftOutNotTheWholeWidget() = runTest {

        val api = FakeHubApi()

        api.userFlowRuns = { throw HubException.Http(404, "no such API route") }

        val d = WidgetData.load(api)

        assertEquals(emptyList<UserFlowRun>(), d.runs)

        assertEquals(1, d.reviews)

        api.userProposals = { throw HubException.Http(500, "down") }

        assertNull(WidgetData.load(api).reviews)

    }

    @Test

    fun theWidgetFetchesYourSkyAndALostSkyLeavesThePlainSurface() = runTest {

        val api = FakeHubApi()

        val sky = UserSky(now = 10 * 86_400_000L, repos = listOf("andy/a"), events = listOf(listOf(0L, 0L, 9 * 86_400_000L, 3L)))

        api.userSky = { sky }

        assertEquals(sky, WidgetData.load(api).sky)

        api.userSky = { throw HubException.Http(404, "no such API route") }

        val d = WidgetData.load(api)

        assertNull(d.sky)

        assertEquals(1, d.reviews)

    }

    @Test

    fun onlyRealActivityIsDrawn() {

        assertFalse("nothing fetched", SkyBitmap.drawable(null))

        assertFalse("no repositories", SkyBitmap.drawable(UserSky()))

        assertFalse("repositories but no events", SkyBitmap.drawable(UserSky(repos = listOf("andy/a"))))

        assertFalse("only malformed events", SkyBitmap.drawable(UserSky(repos = listOf("andy/a"), events = listOf(listOf(7L, 0L, 0L, 1L)))))

        assertTrue(SkyBitmap.drawable(UserSky(now = 1, repos = listOf("andy/a"), events = listOf(listOf(0L, 4L, 0L, 1L)))))

    }

    @Test

    fun theSkysColoursFollowTheTheme() {

        val (light, dark) = SkyBitmap.colours(false) to SkyBitmap.colours(true)

        assertEquals(24, light.size)

        assertEquals(24, dark.size)

        assertNotEquals(light, dark)

        assertTrue("every channel is a fraction", (light + dark).all { it in 0f..1f })

    }

}