/*
 * Copyright © 2017-2018 AT&T Intellectual Property.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.onap.ccsdk.cds.controllerblueprints.core

import com.fasterxml.jackson.databind.JsonNode
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.databind.node.ArrayNode
import com.fasterxml.jackson.databind.node.BooleanNode
import com.fasterxml.jackson.databind.node.IntNode
import com.fasterxml.jackson.databind.node.JsonNodeType
import com.fasterxml.jackson.databind.node.MissingNode
import com.fasterxml.jackson.databind.node.NullNode
import com.fasterxml.jackson.databind.node.ObjectNode
import com.fasterxml.jackson.databind.node.TextNode
import org.junit.Test
import kotlin.test.assertEquals
import kotlin.test.assertFalse
import kotlin.test.assertNotNull
import kotlin.test.assertNull
import kotlin.test.assertTrue

/**
 *
 *
 * @author Brinda Santh
 */
class CustomFunctionsTest {

    @Test
    fun testFormat() {
        val returnValue: String = format("This is {} for times {}", "test", 2)
        assertEquals("This is test for times 2", returnValue, "Failed to format String")

        val returnValue1: String = format("This is test for times 2")
        assertEquals("This is test for times 2", returnValue1, "Failed to format empty args")
    }

    @Test
    fun testStringAsJsonPrimitive() {
        val returnValue: TextNode = "hello".asJsonPrimitive()
        assertEquals("hello", returnValue.textValue())
    }

    @Test
    fun testIntAsJsonPrimitive() {
        val returnValue: IntNode = 1.asJsonPrimitive()
        assertEquals(1, returnValue.intValue())
    }

    @Test
    fun testBooleanAsJsonPrimitive() {
        val returnValue: BooleanNode = false.asJsonPrimitive()
        assertFalse(returnValue.asBoolean())
    }

    @Test
    fun testByteArrayJsonType() {
        val jsonNode = """{"Name" :"Value"}""".jsonAsJsonType()

        val byteArray = jsonNode.asByteArray()
        assertNotNull(byteArray, "failed to get ByteArray form Json")

        val reverseJsonNode = byteArray.asJsonType()
        assertNotNull(reverseJsonNode, "failed to get Json type from ByteArray")
    }

    @Test
    fun testAsJsonType() {
        val nullReturnValue: JsonNode = null.asJsonType()
        assertEquals(NullNode.instance, nullReturnValue)

        val returnValueString: JsonNode = "hello".asJsonType()
        assertEquals("hello", returnValueString.textValue())

        val returnValueJsonNode: JsonNode = returnValueString.asJsonType()
        assertEquals(returnValueString, returnValueJsonNode)

        val returnValueInt: JsonNode = 1.asJsonType()
        assertEquals(1, returnValueInt.intValue())

        val returnValueBool: JsonNode = false.asJsonType()
        assertFalse(returnValueBool.asBoolean())

        val returnValue: JsonNode = BluePrintError().asJsonType()
        assertEquals(JsonNodeType.OBJECT, returnValue.getNodeType())
    }

    @Test
    fun testMapAsObjectNode() {
        val returnValue: ObjectNode = hashMapOf("test" to BluePrintError()).asObjectNode()
        assertNotNull(returnValue.get("test"))
    }

    @Test
    fun testCastOptionalValue() {
        val initMap: Map<String, *> = hashMapOf("test" to 1.1, "test2" to null)
        val returnValue = initMap.castOptionalValue("test", Number::class)

        assert(returnValue is Number)

        val returnValueNull = initMap.castOptionalValue("test1", Number::class)

        assertNull(returnValueNull)

        val returnValueString: String? = initMap.castOptionalValue("test2", String::class)

        assertNull(returnValueString)
    }

    @Test(expected = BluePrintException::class)
    fun testCastValue() {
        val initMap: Map<String, Double> = hashMapOf("test" to 1.1)
        val returnValue = initMap.castValue("test", Number::class)

        assertNotNull(returnValue)

        initMap.castValue("test1", Number::class)
    }

    @Test
    fun testAsListOfString() {
        val arrayNode: ArrayNode = ObjectMapper().createObjectNode().putArray("array")

        val result: List<String> = arrayNode.asListOfString()

        assertTrue(result.isEmpty())
    }

    @Test
    fun testReturnNullIfMissing() {
        val valueExist = "hello".asJsonType().returnNullIfMissing()
        assertNotNull(valueExist)

        val valueNull = NullNode.instance.returnNullIfMissing()
        assertNull(valueNull)

        val missingValue = MissingNode.getInstance().returnNullIfMissing()
        assertNull(missingValue)
    }

    @Test
    fun testIsNullOrMissing() {
        assertTrue(NullNode.instance.isNullOrMissing())
        assertTrue(MissingNode.getInstance().isNullOrMissing())

        assertFalse(TextNode("").isNullOrMissing())
        assertFalse("".asJsonType().isNullOrMissing())
        assertFalse("hello".asJsonType().isNullOrMissing())
        assertFalse("{\"key\": \"value\"}".asJsonType().isNullOrMissing())
        assertFalse(TextNode("hello").isNullOrMissing())
    }

    @Test
    fun testIsComplexType() {
        assertFalse(NullNode.instance.isComplexType())
        assertFalse(MissingNode.getInstance().isComplexType())

        assertFalse(TextNode("").isComplexType())
        assertFalse("".asJsonType().isComplexType())
        assertFalse("hello".asJsonType().isComplexType())
        assertFalse(TextNode("hello").isComplexType())

        assertTrue("{\"key\": \"value\"}".asJsonType().isComplexType())
        assertTrue("[{\"key\": \"value\"},{\"key\": \"value\"}]".asJsonType().isComplexType())
    }

    @Test(expected = BluePrintException::class)
    fun testRootFieldsToMap() {
        1.asJsonType().rootFieldsToMap()
    }

    @Test
    fun testPutJsonElement() {
        val mutMap = mutableMapOf("test" to 2.asJsonType())

        mutMap.putJsonElement("hello", 3)

        assertEquals(3, mutMap["hello"]?.asInt())
    }

    @Test(expected = BluePrintException::class)
    fun testMapGetAsString() {
        val initMap = hashMapOf("test" to "hello".asJsonType())

        assertEquals("hello", initMap.getAsString("test"))

        initMap.getAsString("test2")
    }

    @Test(expected = BluePrintException::class)
    fun testMapGetAsBoolean() {
        val initMap = hashMapOf("test" to true.asJsonType())

        assertTrue(initMap.getAsBoolean("test"))

        initMap.getAsBoolean("test2")
    }

    @Test(expected = BluePrintException::class)
    fun testMapGetAsInt() {
        val initMap = hashMapOf("test" to 1.asJsonType())

        assertEquals(1, initMap.getAsInt("test"))

        initMap.getAsInt("test2")
    }

    @Test(expected = BluePrintException::class)
    fun testCheckEquals() {
        assertTrue(checkEquals("hello", "hello", { -> "error" }))

        checkEquals("hello", "test", { -> "error" })
    }

    @Test(expected = IllegalStateException::class)
    fun testCheckNotEmpty() {
        assertEquals("hello", checkNotEmpty("hello", { -> "error" }))

        checkNotEmpty("", { -> "error" })
    }

    @Test(expected = IllegalStateException::class)
    fun testCheckNotBlank() {
        assertEquals("hello", checkNotBlank("hello", { -> "error" }))

        checkNotBlank("  ", { -> "error" })
    }

    @Test
    fun testNullToEmpty() {
        assertEquals("", nullToEmpty(null))

        assertEquals("hello", nullToEmpty("hello"))
    }
}