@file:Suppress("LocalVariableName")

package org.jetbrains

import org.gradle.api.Project

enum class DokkaPublicationChannel {
    SPACE_DOKKA_DEV,
    MAVEN_CENTRAL,
    MAVEN_CENTRAL_SNAPSHOT,
    GRADLE_PLUGIN_PORTAL;

    val acceptedDokkaVersionTypes: List<DokkaVersionType>
        get() = when(this) {
            MAVEN_CENTRAL -> listOf(DokkaVersionType.RELEASE, DokkaVersionType.RC)
            MAVEN_CENTRAL_SNAPSHOT -> listOf(DokkaVersionType.SNAPSHOT)
            SPACE_DOKKA_DEV -> listOf(DokkaVersionType.RELEASE, DokkaVersionType.RC, DokkaVersionType.DEV, DokkaVersionType.SNAPSHOT)
            GRADLE_PLUGIN_PORTAL -> listOf(DokkaVersionType.RELEASE, DokkaVersionType.RC)
        }

    fun isSpaceRepository() = this == SPACE_DOKKA_DEV

    fun isMavenRepository() =  this == MAVEN_CENTRAL || this == MAVEN_CENTRAL_SNAPSHOT

    fun isGradlePluginPortal() = this == GRADLE_PLUGIN_PORTAL

    companion object {
        fun fromPropertyString(value: String): DokkaPublicationChannel = when (value) {
            "space-dokka-dev" -> SPACE_DOKKA_DEV
            "maven-central-release" -> MAVEN_CENTRAL
            "maven-central-snapshot" -> MAVEN_CENTRAL_SNAPSHOT
            "gradle-plugin-portal" -> GRADLE_PLUGIN_PORTAL
            else -> throw IllegalArgumentException("Unknown dokka_publication_channel=$value")
        }
    }
}

val Project.publicationChannels: Set<DokkaPublicationChannel>
    get() {
        val publicationChannel = this.properties["dokka_publication_channel"]?.toString()
        val publicationChannels = this.properties["dokka_publication_channels"]?.toString()
        if (publicationChannel != null && publicationChannels != null) {
            throw IllegalArgumentException(
                "Only one of dokka_publication_channel and dokka_publication_channel*s* can be set. Found: \n" +
                        "dokka_publication_channel=$publicationChannel\n" +
                        "dokka_publication_channels=$publicationChannels"
            )
        }

        if (publicationChannel != null) {
            return setOf(DokkaPublicationChannel.fromPropertyString(publicationChannel))
        }

        if (publicationChannels != null) {
            return publicationChannels.split("&").map { channel ->
                DokkaPublicationChannel.fromPropertyString(channel)
            }.toSet()
        }

        return emptySet()
    }