package io.oxygenhub.android.ui

import io.oxygenhub.android.FakeHubApi

import io.oxygenhub.android.MainDispatcherRule

import io.oxygenhub.android.api.DiffLine

import io.oxygenhub.android.api.FileChange

import io.oxygenhub.android.api.HubException

import io.oxygenhub.android.ui.common.Load

import io.oxygenhub.android.ui.proposals.ProposalFilesViewModel

import org.junit.Assert.assertEquals

import org.junit.Assert.assertTrue

import org.junit.Rule

import org.junit.Test

class ProposalFilesTest {

    @get:Rule val main = MainDispatcherRule()

    private val api = FakeHubApi()

    @Test

    fun aProposalsFilesComeWithTheirDiffs() {

        api.proposalDiff = {

            listOf(FileChange(path = "a.txt", kind = "modified", added = 1, lines = listOf(DiffLine("context", 1, 1, "a"), DiffLine("add", null, 2, "A"))))

        }

        val files = (ProposalFilesViewModel(api, "andy", "demo", 2).state.value as Load.Ready).value

        assertEquals(listOf("a.txt"), files.map { it.path })

        assertEquals(listOf("context", "add"), files[0].lines.map { it.kind })

        assertTrue("proposalDiff" in api.calls)

    }

    @Test

    fun aHubWithoutTheDiffSaysSo() {

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

        assertTrue(ProposalFilesViewModel(api, "andy", "demo", 2).state.value is Load.Failed)

    }

}