package net.pterodactylus.sone.fcp

import freenet.support.*
import net.pterodactylus.sone.core.*
import net.pterodactylus.sone.data.*
import net.pterodactylus.sone.freenet.fcp.*
import net.pterodactylus.sone.template.*
import net.pterodactylus.sone.test.*
import net.pterodactylus.sone.utils.*
import org.junit.*
import org.junit.rules.*
import org.mockito.ArgumentMatchers.*

/**
 * Base class for Sone FCP command tests.
 */
abstract class SoneCommandTest {

	@Rule @JvmField val expectedException = ExpectedException.none()!!

	protected val core = mock<Core>()
	protected val command: AbstractSoneCommand by lazy { createCommand(core) }

	protected val parameters = SimpleFieldSet(true)
	protected val localSone = mock<Sone>().apply {
		whenever(isLocal).thenReturn(true)
	}
	protected val remoteSone = mock<Sone>()

	protected abstract fun createCommand(core: Core): AbstractSoneCommand

	@Before
	fun setupCore() {
		whenever(core.getSone(anyString())).thenReturn(null)
		whenever(core.getPost(anyString())).thenReturn(null)
		whenever(core.getPostReply(anyString())).thenReturn(null)
	}

	protected fun createSone(id: String, name: String, firstName: String, lastName: String, time: Long) = mock<Sone>().apply {
		whenever(this.id).thenReturn(id)
		whenever(this.name).thenReturn(name)
		whenever(profile).thenReturn(Profile(this).apply {
			this.firstName = firstName
			this.lastName = lastName
		})
		whenever(this.time).thenReturn(time)
	}

	protected fun createPost(id: String, sone: Sone, recipientId: String?, time: Long, text: String) = mock<Post>().apply {
		whenever(this.id).thenReturn(id)
		whenever(this.sone).thenReturn(sone)
		whenever(this.recipientId).thenReturn(recipientId.asOptional())
		whenever(this.time).thenReturn(time)
		whenever(this.text).thenReturn(text)
	}

	protected fun createReply(id: String, sone: Sone, post: Post, time: Long, text: String) = mock<PostReply>().apply {
		whenever(this.id).thenReturn(id)
		whenever(this.sone).thenReturn(sone)
		whenever(this.post).thenReturn(post.asOptional())
		whenever(this.time).thenReturn(time)
		whenever(this.text).thenReturn(text)
	}

	protected fun executeCommandAndExpectFcpException() {
		expectedException.expect(FcpException::class.java)
		command.execute(parameters)
	}

	protected fun requestWithoutAnyParameterResultsInFcpException() {
		expectedException.expect(FcpException::class.java)
		command.execute(parameters)
	}

	protected fun requestWithEmptySoneParameterResultsInFcpException() {
		parameters += "Sone" to null
		executeCommandAndExpectFcpException()
	}

	protected fun requestWithInvalidSoneParameterResultsInFcpException() {
		parameters += "Sone" to "InvalidSoneId"
		executeCommandAndExpectFcpException()
	}

	fun requestWithValidRemoteSoneParameterResultsInFcpException() {
		parameters += "Sone" to "RemoteSoneId"
		whenever(core.getSone("RemoteSoneId")).thenReturn(remoteSone)
		executeCommandAndExpectFcpException()
	}

	protected operator fun SimpleFieldSet.plusAssign(keyValue: Pair<String, String?>) = putSingle(keyValue.first, keyValue.second)
	protected fun SimpleFieldSet.parsePost(prefix: String) = parseFromSimpleFieldSet(prefix, "ID", "Sone", "Recipient", "Time", "Text")
	protected fun SimpleFieldSet.parseReply(prefix: String) = parseFromSimpleFieldSet(prefix, "ID", "Sone", "Time", "Text")
	protected fun SimpleFieldSet.parseSone(prefix: String) = parseFromSimpleFieldSet(prefix, "ID", "Name", "NiceName", "LastUpdated", "Followed") +
			(0 until this["${prefix}Field.Count"].toInt()).map {
				("Field." + this["${prefix}Field.$it.Name"]) to this["${prefix}Field.$it.Value"]
			}

	private fun SimpleFieldSet.parseFromSimpleFieldSet(prefix: String, vararg fields: String): Map<String, String?> = fields
			.associate { it to get(prefix + it) }

	protected fun matchesPost(post: Post) = OneByOneMatcher<Map<String, String?>>().apply {
		expect("ID", post.id) { it["ID"] }
		expect("Sone", post.sone.id) { it["Sone"] }
		expect("recipient", post.recipientId.orNull()) { it["Recipient"] }
		expect("time", post.time.toString()) { it["Time"] }
		expect("text", post.text.replace("\\", "\\\\").replace("\r", "\\r").replace("\n", "\\n")) { it["Text"] }
	}

	protected fun matchesReply(reply: PostReply) = OneByOneMatcher<Map<String, String?>>().apply {
		expect("ID", reply.id) { it["ID"] }
		expect("Sone", reply.sone.id) { it["Sone"] }
		expect("time", reply.time.toString()) { it["Time"] }
		expect("text", reply.text.replace("\\", "\\\\").replace("\r", "\\r").replace("\n", "\\n")) { it["Text"] }
	}

	protected fun matchesSone(sone: Sone) = OneByOneMatcher<Map<String, String?>>().apply {
		expect("ID", sone.id) { it["ID"] }
		expect("name", sone.name) { it["Name"] }
		expect("last updated", sone.time.toString()) { it["LastUpdated"] }
		expect("nice name", SoneAccessor.getNiceName(sone)) { it["NiceName"] }
		sone.profile.fields.forEach { field ->
			expect("field: ${field.name}", field.value) { it["Field.${field.name}"] }
		}
	}

}