package ru.dbotthepony.kstarbound.util

import com.google.common.collect.ImmutableList
import com.google.common.collect.ImmutableMap
import com.google.common.collect.ImmutableSet
import com.google.gson.JsonArray
import com.google.gson.JsonElement
import com.google.gson.JsonObject
import ru.dbotthepony.kstarbound.Starbound
import java.util.*
import java.util.function.Consumer
import kotlin.collections.ArrayList

fun String.sbIntern(): String {
	return Starbound.STRINGS.intern(this)
}

fun String.sbIntern2(): String {
	return Starbound.STRINGS.intern(this.intern())
}

fun traverseJsonPath(path: String?, element: JsonElement?): JsonElement? {
	element ?: return null
	path ?: return element

	if (path.contains('.')) {
		var current: JsonElement? = element

		for (name in path.split('.')) {
			if (current is JsonObject) {
				current = current[name]
			} else if (current is JsonArray) {
				val toInt = name.toIntOrNull() ?: return null
				if (toInt !in 0 until current.size()) return null
				current = current.get(toInt)
			} else {
				return null
			}
		}

		return current
	} else {
		if (element is JsonObject) {
			return element[path]
		} else if (element is JsonArray) {
			val toInt = path.toIntOrNull() ?: return null
			if (toInt !in 0 until element.size()) return null
			return element[toInt]
		} else {
			return null
		}
	}
}

inline fun <K : Any, V : Any> immutableMap(initializer: ImmutableMap.Builder<K, V>.() -> Unit): ImmutableMap<K, V> {
	val builder = ImmutableMap.Builder<K, V>()
	initializer.invoke(builder)
	return builder.build()
}

inline fun <V : Any> immutableSet(initializer: Consumer<V>.() -> Unit): ImmutableSet<V> {
	val builder = ImmutableSet.Builder<V>()
	initializer.invoke(builder::add)
	return builder.build()
}

inline fun <V : Any> immutableList(initializer: Consumer<V>.() -> Unit): ImmutableList<V> {
	val builder = ImmutableList.Builder<V>()
	initializer.invoke(builder::add)
	return builder.build()
}

fun UUID.toStarboundString(): String {
	val builder = StringBuilder(32)
	val a = mostSignificantBits.toString(16)
	val b = mostSignificantBits.toString(16)

	for (i in a.length until 16)
		builder.append("0")

	builder.append(a)

	for (i in b.length until 16)
		builder.append("0")

	builder.append(b)

	return builder.toString()
}