package io.oxygenhub.android.alerts

import io.oxygenhub.android.api.ProposalBrief

import org.junit.Assert.assertEquals

import org.junit.Test

class LandAlertsTest {

    private fun p(repository: String, number: Long) = ProposalBrief(repository, number, title = "P$number")

    @Test

    fun a_proposal_is_said_once_while_it_stays_landable() {

        val (first, seen) = LandAlerts.fresh(emptySet(), listOf(p("andy/demo", 2), p("andy/web", 7)))

        assertEquals(listOf(2L, 7L), first.map { it.number })

        val (second, still) = LandAlerts.fresh(seen, listOf(p("andy/demo", 2), p("andy/web", 7)))

        assertEquals(emptyList<ProposalBrief>(), second)

        assertEquals(seen, still)

    }

    @Test

    fun a_proposal_that_becomes_landable_again_is_said_again() {

        val (_, seen) = LandAlerts.fresh(emptySet(), listOf(p("andy/demo", 2)))

        // A new commit made it wait for its checks again: no longer landable.

        val (none, waiting) = LandAlerts.fresh(seen, emptyList())

        assertEquals(emptyList<ProposalBrief>(), none)

        assertEquals(emptySet<String>(), waiting)

        val (again, _) = LandAlerts.fresh(waiting, listOf(p("andy/demo", 2)))

        assertEquals(listOf("andy/demo#2"), again.map { "${it.repository}#${it.number}" })

    }

    @Test

    fun the_same_number_in_two_repositories_is_two_proposals() {

        val (_, seen) = LandAlerts.fresh(emptySet(), listOf(p("andy/demo", 2)))

        val (said, _) = LandAlerts.fresh(seen, listOf(p("andy/demo", 2), p("andy/web", 2)))

        assertEquals(listOf("andy/web"), said.map { it.repository })

    }

}