package com.example.gravitydemo

import ai.gravityfield.gravity_sdk.GravitySDK
import ai.gravityfield.gravity_sdk.models.AddToCartEvent
import ai.gravityfield.gravity_sdk.models.CampaignContent
import ai.gravityfield.gravity_sdk.models.ContextType
import ai.gravityfield.gravity_sdk.models.FollowDeeplinkEvent
import ai.gravityfield.gravity_sdk.models.FollowUrlEvent
import ai.gravityfield.gravity_sdk.models.PageContext
import ai.gravityfield.gravity_sdk.models.ProductClickEngagement
import ai.gravityfield.gravity_sdk.models.Slot
import ai.gravityfield.gravity_sdk.network.Campaign
import ai.gravityfield.gravity_sdk.ui.GravityInlineCompose
import ai.gravityfield.gravity_sdk.ui.product_view_builder.ProductViewBuilder
import ai.gravityfield.gravity_sdk.utils.LogLevel
import android.app.Application
import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.util.Log
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Button
import androidx.compose.material3.CircularProgressIndicator
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import org.json.JSONObject

class GravityDemoApplication : Application() {
    override fun onCreate() {
        super.onCreate()
        GravitySDK.initialize(
            context = this,
            apiKey = "YOUR_API_KEY",
            section = "YOUR_SECTION_ID",
            gravityEventCallback = { event ->
                when (event) {
                    is FollowUrlEvent -> startActivity(
                        Intent(Intent.ACTION_VIEW, Uri.parse(event.url))
                            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
                    )
                    is FollowDeeplinkEvent -> {
                        // Передайте event.deeplink в роутер приложения.
                        Log.d("GravityDemo", "Deeplink: ${event.deeplink}")
                    }
                    else -> Unit
                }
            },
            productViewBuilder = DemoProductBuilder(),
            logLevel = LogLevel.ERROR,
        )
    }
}

class MainActivity : ComponentActivity() {
    private val pageContext = PageContext(
        type = ContextType.PRODUCT,
        data = listOf("sku-123"),
        location = "app://product/sku-123",
    )

    // Обход ограничения SDK 1.1.0: selector разбирается как JSON-значение.
    private val selector = JSONObject.quote("product_recommendations")

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            MaterialTheme {
                LaunchedEffect(pageContext) {
                    GravitySDK.instance.trackView(pageContext, this@MainActivity)
                }
                Column(Modifier.padding(16.dp)) {
                    Text("Товар sku-123")
                    Button(onClick = {
                        // В приложении отправляйте событие после изменения корзины.
                        GravitySDK.instance.triggerEvent(
                            events = listOf(AddToCartEvent(
                                value = 1990.0,
                                productId = "sku-123",
                                quantity = 1,
                                currency = "RUB",
                            )),
                            pageContext = pageContext,
                            activityContext = this@MainActivity,
                        )
                    }) {
                        Text("Добавить в корзину")
                    }
                    GravityInlineCompose(
                        modifier = Modifier.fillMaxWidth().height(250.dp),
                        selector = selector,
                        pageContext = pageContext,
                        loader = { CircularProgressIndicator() },
                    )
                }
            }
        }
    }

    override fun onDestroy() {
        if (isFinishing) {
            GravitySDK.instance.resetInlineViewCache(selector, pageContext)
        }
        super.onDestroy()
    }
}

private class DemoProductBuilder : ProductViewBuilder {
    @Composable
    override fun Build(slot: Slot, content: CampaignContent, campaign: Campaign) {
        Button(onClick = {
            GravitySDK.instance.sendProductEngagement(
                ProductClickEngagement(slot, content, campaign)
            )
            // Откройте товар через роутер приложения.
            Log.d("GravityDemo", "Product: ${slot.item["sku"]}")
        }) {
            Text(slot.item["name"]?.toString() ?: "Товар")
        }
    }
}