package com.contentsquare.rn.csq

import com.contentsquare.api.model.Metadata
import com.contentsquare.rn.csq.utils.MetadataConverter
import com.contentsquare.rn.eventEmitter.CSEventEmitterModuleImpl
import com.contentsquare.rn.utils.ReactNativeUiThreadUtil
import com.facebook.react.bridge.WritableMap
import io.mockk.every
import io.mockk.mockk
import io.mockk.mockkObject
import io.mockk.slot
import io.mockk.unmockkAll
import io.mockk.verify
import org.junit.After
import org.junit.Before
import org.junit.Test

class CSQMetadataTest {

    private val mockReactNativeUiThreadUtil: ReactNativeUiThreadUtil = mockk()
    private val mockCSEventEmitterModuleImpl: CSEventEmitterModuleImpl = mockk(relaxed = true)
    private lateinit var underTest: CSQMetadata

    @Before
    fun setup() {
        val slot = slot<Runnable>()
        every { mockReactNativeUiThreadUtil.runOnUiThread(capture(slot)) } answers {
            slot.captured.run()
            Unit
        }

        underTest = CSQMetadata(mockReactNativeUiThreadUtil, mockCSEventEmitterModuleImpl)
    }

    @After
    fun tearDown() {
        unmockkAll()
    }

    @Test
    fun `setOnMetadataChange should run on UI thread`() {
        // When
        underTest.setOnMetadataChange()

        // Then
        verify { mockReactNativeUiThreadUtil.runOnUiThread(any()) }
    }


    @Test
    fun `metadata callback should convert metadata and send to event emitter`() {
        // Given
        mockkObject(MetadataConverter)

        val mockMetadata = mockk<Metadata>()
        val mockWritableMap = mockk<WritableMap>()
        every { MetadataConverter.convertCSQMetadataToMap(mockMetadata) } returns mockWritableMap

        // When - Simulate the callback execution directly
        val metadataMap = MetadataConverter.convertCSQMetadataToMap(mockMetadata)
        mockCSEventEmitterModuleImpl.sendMetadataChange(metadataMap)

        // Then
        verify { MetadataConverter.convertCSQMetadataToMap(mockMetadata) }
        verify { mockCSEventEmitterModuleImpl.sendMetadataChange(mockWritableMap) }
    }
}